Move remaining bindings to PUC Lua

ADDITIONS.md

@@ -155,6 +155,7 @@ In addition to `add`, `multiply`, `merge` and `override` new merge methods are a
  * Added `animator.effects(): List<string>`
  * Added `animator.hasEffect(effect: string): boolean`
  * Added `animator.parts(): List<string>`
+ * Added `animator.hasPart(part: String): boolean`
 
 ## mcontroller
 
@@ -185,6 +186,10 @@ In addition to `add`, `multiply`, `merge` and `override` new merge methods are a
  * Added `status.minimumLiquidStatusEffectPercentage(): Double`
  * Added `status.setMinimumLiquidStatusEffectPercentage(value: Double)`
 
+## objec
+
+ * Added `object.worldSpaces(): List<Vector2i>`, similar to `object.spaces()`, but returns coordinates in world-space grid instead of local coordinates
+
 ## Path Finder
 
 In new engine, pathfinder returned by `world.platformerPathStart()`, if unable find path to goal inside `finder:explore()` due to budget constraints, launches

src/main/kotlin/ru/dbotthepony/kstarbound/Starbound.kt

@@ -116,6 +116,8 @@ object Starbound : BlockableEventLoop("Multiverse Thread"), Scheduler, ISBFileLo
 
 	// compile flags. uuuugh
 	const val DEDUP_CELL_STATES = true
+	// Debug option. Caffeine is almost 3x times slower than specialized interner,
+	// and saves only 200 mib on big modpack vs specialized's 300 mib
 	const val USE_CAFFEINE_INTERNER = false
 	const val USE_INTERNER = true
 

src/main/kotlin/ru/dbotthepony/kstarbound/defs/actor/behavior/CompositeNodeType.kt

@@ -1,19 +1,11 @@
 package ru.dbotthepony.kstarbound.defs.actor.behavior
 
-import com.google.common.collect.ImmutableList
 import ru.dbotthepony.kstarbound.json.builder.IStringSerializable
-import ru.dbotthepony.kstarbound.world.entities.behavior.AbstractBehaviorNode
-import ru.dbotthepony.kstarbound.world.entities.behavior.BehaviorTree
-import ru.dbotthepony.kstarbound.world.entities.behavior.Blackboard
-import ru.dbotthepony.kstarbound.world.entities.behavior.DynamicNode
-import ru.dbotthepony.kstarbound.world.entities.behavior.ParallelNode
-import ru.dbotthepony.kstarbound.world.entities.behavior.RandomizeNode
-import ru.dbotthepony.kstarbound.world.entities.behavior.SequenceNode
 
-enum class CompositeNodeType(override val jsonName: String, val factory: (Map<String, NodeParameter>, ImmutableList<AbstractBehaviorNode>) -> AbstractBehaviorNode) : IStringSerializable {
-	SEQUENCE("Sequence", { _, c -> SequenceNode(c, isSelector = false) }),
-	SELECTOR("Selector", { _, c -> SequenceNode(c, isSelector = true) }),
-	PARALLEL("Parallel", { p, c -> ParallelNode(p, c) }),
-	DYNAMIC("Dynamic", { _, c -> DynamicNode(c) }),
-	RANDOMIZE("Randomize", { _, c -> RandomizeNode(c) });
+enum class CompositeNodeType(override val jsonName: String, val fnName: String) : IStringSerializable {
+	SEQUENCE("Sequence", "SequenceNode"),
+	SELECTOR("Selector", "SelectorNode"),
+	PARALLEL("Parallel", "ParallelNode"),
+	DYNAMIC("Dynamic", "DynamicNode"),
+	RANDOMIZE("Randomize", "RandomNode");
 }

src/main/kotlin/ru/dbotthepony/kstarbound/defs/actor/behavior/NodeOutput.kt

@@ -6,12 +6,23 @@ import com.google.gson.stream.JsonReader
 import com.google.gson.stream.JsonWriter
 import ru.dbotthepony.kommons.gson.get
 import ru.dbotthepony.kstarbound.json.popObject
+import ru.dbotthepony.kstarbound.lua.LuaThread
 import ru.dbotthepony.kstarbound.util.asStringOrNull
 import ru.dbotthepony.kstarbound.util.valueOf
-import ru.dbotthepony.kstarbound.world.entities.behavior.NodeParameterType
+import ru.dbotthepony.kstarbound.lua.userdata.NodeParameterType
 
 @JsonAdapter(NodeOutput.Adapter::class)
 data class NodeOutput(val type: NodeParameterType, val key: String? = null, val ephemeral: Boolean = false) {
+	fun push(lua: LuaThread) {
+		lua.pushTable(hashSize = 3)
+		lua.setTableValue("type", type.ordinal)
+
+		if (key != null)
+			lua.setTableValue("key", key)
+
+		lua.setTableValue("ephemeral", ephemeral)
+	}
+
 	class Adapter : TypeAdapter<NodeOutput>() {
 		override fun write(out: JsonWriter, value: NodeOutput) {
 			out.beginObject()

src/main/kotlin/ru/dbotthepony/kstarbound/defs/actor/behavior/NodeParameter.kt

@@ -8,8 +8,9 @@ import com.google.gson.stream.JsonWriter
 import ru.dbotthepony.kommons.gson.contains
 import ru.dbotthepony.kommons.gson.value
 import ru.dbotthepony.kstarbound.json.popObject
+import ru.dbotthepony.kstarbound.lua.LuaThread
 import ru.dbotthepony.kstarbound.util.valueOf
-import ru.dbotthepony.kstarbound.world.entities.behavior.NodeParameterType
+import ru.dbotthepony.kstarbound.lua.userdata.NodeParameterType
 
 @JsonAdapter(NodeParameter.Adapter::class)
 data class NodeParameter(val type: NodeParameterType, val value: NodeParameterValue) {
@@ -17,6 +18,17 @@ data class NodeParameter(val type: NodeParameterType, val value: NodeParameterVa
 		return "[$type as $value]"
 	}
 
+	fun push(lua: LuaThread) {
+		lua.pushTable(hashSize = 3)
+		lua.setTableValue("type", type.ordinal)
+
+		if (value.key != null) {
+			lua.setTableValue("key", value.key)
+		} else {
+			lua.setTableValue("value", value.value)
+		}
+	}
+
 	class Adapter : TypeAdapter<NodeParameter>() {
 		override fun write(out: JsonWriter, value: NodeParameter) {
 			out.beginObject()

src/main/kotlin/ru/dbotthepony/kstarbound/defs/actor/behavior/NodeParameterValue.kt

@@ -17,6 +17,10 @@ import ru.dbotthepony.kstarbound.json.popObject
  */
 @JsonAdapter(NodeParameterValue.Adapter::class)
 data class NodeParameterValue(val key: String?, val value: JsonElement?) {
+	init {
+		require(key != null || value != null) { "Both key and value are nulls" }
+	}
+
 	override fun toString(): String {
 		if (key != null)
 			return "key=$key"

src/main/kotlin/ru/dbotthepony/kstarbound/lua/Conversions.kt

@@ -26,6 +26,7 @@ import ru.dbotthepony.kommons.util.IStruct3i
 import ru.dbotthepony.kommons.util.IStruct4d
 import ru.dbotthepony.kommons.util.IStruct4f
 import ru.dbotthepony.kommons.util.IStruct4i
+import ru.dbotthepony.kstarbound.Registry
 import ru.dbotthepony.kstarbound.math.vector.Vector2d
 import ru.dbotthepony.kstarbound.math.vector.Vector2f
 import ru.dbotthepony.kstarbound.math.vector.Vector2i
@@ -557,6 +558,44 @@ fun LuaThread.ArgStack.nextOptionalVector2d(position: Int = this.position++): Ve
 	return lua.getVector2d(position)
 }
 
+fun LuaThread.getVector2f(stackIndex: Int = -1): Vector2f? {
+	val abs = this.absStackIndex(stackIndex)
+
+	if (!this.isTable(abs))
+		return null
+
+	push(1)
+	loadTableValue(abs)
+
+	val x = getFloat(abs + 1)
+	pop()
+	x ?: return null
+
+	push(2)
+	loadTableValue(abs)
+
+	val y = getFloat(abs + 1)
+	pop()
+	y ?: return null
+
+	return Vector2f(x, y)
+}
+
+fun LuaThread.ArgStack.nextVector2f(position: Int = this.position++): Vector2f {
+	if (position !in 1 ..this.top)
+		throw IllegalArgumentException("bad argument #$position: Vector2f expected, got nil")
+
+	return lua.getVector2f(position)
+		?: throw IllegalArgumentException("bad argument #$position: Vector2f expected, got ${lua.typeAt(position)}")
+}
+
+fun LuaThread.ArgStack.nextOptionalVector2f(position: Int = this.position++): Vector2f? {
+	if (position !in 1 ..this.top)
+		return null
+
+	return lua.getVector2f(position)
+}
+
 fun LuaThread.getVector2iOrAABB(stackIndex: Int = -1): Either<Vector2i, AABB>? {
 	val abs = this.absStackIndex(stackIndex)
 
@@ -1062,3 +1101,28 @@ fun LuaThread.push(value: AABBi?) {
 	push(w.toLong())
 	setTableValue(table)
 }
+
+fun LuaThread.push(value: Poly?) {
+	value ?: return push()
+
+	pushTable(value.vertices.size)
+
+	for ((i, vertex) in value.vertices.withIndex())
+		setTableValue(i + 1L, vertex)
+}
+
+fun LuaThread.setTableValue(key: String, value: Poly?) { push(key); push(value); setTableValue() }
+fun LuaThread.setTableValue(key: Int, value: Poly?) { push(key.toLong()); push(value); setTableValue() }
+fun LuaThread.setTableValue(key: Long, value: Poly?) { push(key); push(value); setTableValue() }
+
+fun LuaThread.push(value: Registry.Ref<*>, preferStringsIDs: Boolean = true) {
+	if (value.isPresent) {
+		if (preferStringsIDs || value.entry!!.id == null) {
+			push(value.entry!!.key)
+		} else {
+			push(value.entry!!.id!!.toLong())
+		}
+	} else {
+		value.key.map({ push(it) }, { push(it.toLong()) })
+	}
+}

src/main/kotlin/ru/dbotthepony/kstarbound/lua/LuaMessageHandlerComponent.kt

@@ -1,61 +1,66 @@
 package ru.dbotthepony.kstarbound.lua
 
-import com.google.gson.JsonArray
 import com.google.gson.JsonElement
-import com.google.gson.JsonNull
 import org.apache.logging.log4j.LogManager
-import org.classdump.luna.ByteString
-import org.classdump.luna.exec.CallPausedException
-import org.classdump.luna.runtime.LuaFunction
-import ru.dbotthepony.kommons.util.Either
 import ru.dbotthepony.kstarbound.util.ActionPacer
 import ru.dbotthepony.kstarbound.util.sbIntern
-import ru.dbotthepony.kstarbound.world.World
 
-class LuaMessageHandlerComponent(val lua: LuaEnvironment, val nameProvider: () -> String) {
-	private val handlers = HashMap<String, LuaFunction<*, *, *, *, *>>()
+class LuaMessageHandlerComponent(lua: LuaThread, val nameProvider: () -> String) {
+	private val handlers = HashMap<String, LuaHandle>()
 
-	init {
-		val table = lua.newTable()
-		lua.globals["message"] = table
+	private fun setHandler(args: LuaThread.ArgStack): Int {
+		val name = args.nextString()
+		val peek = args.peek()
 
-		table["setHandler"] = luaFunction { message: ByteString, handler: LuaFunction<*, *, *, *, *>? ->
-			if (handler == null) {
-				handlers.remove(message.decode())
-			} else {
-				handlers[message.decode().sbIntern()] = handler
-			}
+		if (peek.isNothing) {
+			handlers.remove(name)?.close()
+		} else if (peek == LuaType.FUNCTION) {
+			args.lua.dup(2)
+			val handle = args.lua.createHandle()
+			handlers.put(name.sbIntern(), handle)?.close()
 		}
+
+		return 0
 	}
 
-	private val logPacer = ActionPacer(1, 5)
+	init {
+		lua.pushTable()
+		lua.dup()
+		lua.storeGlobal("message")
+		lua.setTableValue("setHandler", ::setHandler)
+		lua.pop()
+	}
 
-	fun handle(message: String, isLocal: Boolean, arguments: JsonArray): JsonElement? {
-		val handler = handlers[message] ?: return null
+	val logPacer = ActionPacer(1, 5)
+
+	fun lookupHandler(name: String): LuaHandle? {
+		return handlers[name]
+	}
+
+	inline fun handle(lua: LuaThread, message: String, isLocal: Boolean, arguments: LuaThread.() -> Int): JsonElement? {
+		val handler = lookupHandler(message) ?: return null
+		val top = lua.stackTop
 
 		try {
-			val unpack = arguments.map { lua.from(it) }.toTypedArray()
-			val result = lua.executor.call(lua, handler, isLocal, *unpack)
+			lua.push(handler)
+			lua.push(isLocal)
+			val amountOfArguments = arguments(lua)
+			check(amountOfArguments >= 0) { "Invalid amount of arguments to pass to Lua handler: $amountOfArguments" }
 
-			if (result.isEmpty()) {
-				return null
-			} else {
-				return toJsonFromLua(result[0])
-			}
-		} catch (err: CallPausedException) {
-			if (logPacer.consumeAndReturnDeadline() <= 0L)
-				LOGGER.error("${nameProvider.invoke()}: '$message' handler attempted to yield across C boundary", err)
+			lua.call(amountOfArguments + 1, 1)
 
-			throw World.MessageCallException("$message handler attempted to yield across C boundary")
+			return lua.getJson()
 		} catch (err: Throwable) {
 			if (logPacer.consumeAndReturnDeadline() <= 0L)
 				LOGGER.error("${nameProvider.invoke()}: Exception while handling message '$message'", err)
 
 			throw err
+		} finally {
+			lua.setTop(top)
 		}
 	}
 
 	companion object {
-		private val LOGGER = LogManager.getLogger()
+		val LOGGER = LogManager.getLogger()
 	}
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/LuaThread.kt

@@ -460,10 +460,22 @@ class LuaThread private constructor(
 		val b = status[0] > 0
 		stack.close()
 
-		if (!b)
+		if (!b) return null
+		return value
+	}
+
+	fun getFloat(stackIndex: Int = -1): Float? {
+		if (!this.isNumber(stackIndex))
 			return null
 
-		return value
+		val stack = MemoryStack.stackPush()
+		val status = stack.mallocInt(1)
+		val value = LuaJNR.INSTANCE.lua_tonumberx(this.pointer, stackIndex, MemoryUtil.memAddress(status))
+		val b = status[0] > 0
+		stack.close()
+
+		if (!b) return null
+		return value.toFloat()
 	}
 
 	private fun getDoubleRaw(stackIndex: Int = -1): Double {
@@ -499,7 +511,7 @@ class LuaThread private constructor(
 			LuaType.NIL -> JsonNull.INSTANCE
 			LuaType.BOOLEAN -> InternedJsonElementAdapter.of(this.getBooleanRaw(abs))
 			LuaType.NUMBER -> JsonPrimitive(if (this.isInteger(abs)) this.getLongRaw(abs) else this.getDoubleRaw(abs))
-			LuaType.STRING -> JsonPrimitive(this.getStringRaw(abs, limit = limit))
+			LuaType.STRING -> JsonPrimitive(stringInterner.intern(getStringRaw(abs, limit = limit)))
 
 			LuaType.TABLE -> {
 				val values = HashMap<Any, JsonElement>()
@@ -826,10 +838,26 @@ class LuaThread private constructor(
 		return LuaType.valueOf(LuaJNR.INSTANCE.lua_getglobal(this.pointer, name))
 	}
 
+	fun setGlobal(name: String, value: JsonElement?) {
+		push(value)
+		storeGlobal(name)
+	}
+
+	fun getGlobal(name: String): JsonElement? {
+		loadGlobal(name)
+		return getJson()
+	}
+
 	inner class ArgStack(val top: Int) {
 		val lua get() = this@LuaThread
 		var position = 1
 
+		val isEmpty: Boolean
+			get() = top == 0
+
+		val isNotEmpty: Boolean
+			get() = top != 0
+
 		init {
 			if (top >= 10) {
 				this@LuaThread.ensureExtraCapacity(10)
@@ -849,7 +877,7 @@ class LuaThread private constructor(
 			return peek
 		}
 
-		fun hasNext(): Boolean {
+		val hasNext: Boolean get() {
 			return position <= top
 		}
 
@@ -951,7 +979,7 @@ class LuaThread private constructor(
 
 		fun nextJson(position: Int = this.position++, limit: Long = DEFAULT_STRING_LIMIT): JsonElement {
 			if (position !in 1 ..this.top)
-				throw IllegalArgumentException("bad argument #$position: json expected, got nil")
+				throw IllegalArgumentException("bad argument #$position: json expected, got nothing")
 
 			val value = this@LuaThread.getJson(position, limit = limit)
 			return value ?: throw IllegalArgumentException("bad argument #$position: anything expected, got ${this@LuaThread.typeAt(position)}")
@@ -988,6 +1016,14 @@ class LuaThread private constructor(
 				?: throw IllegalArgumentException("bad argument #$position: number expected, got ${this@LuaThread.typeAt(position)}")
 		}
 
+		fun nextFloat(position: Int = this.position++): Float {
+			if (position !in 1 ..this.top)
+				throw IllegalArgumentException("bad argument #$position: number expected, got nil")
+
+			return this@LuaThread.getFloat(position)
+				?: throw IllegalArgumentException("bad argument #$position: number expected, got ${this@LuaThread.typeAt(position)}")
+		}
+
 		fun nextOptionalDouble(position: Int = this.position++): Double? {
 			val type = this@LuaThread.typeAt(position)
 
@@ -997,6 +1033,15 @@ class LuaThread private constructor(
 			return this@LuaThread.getDouble(position)
 		}
 
+		fun nextOptionalFloat(position: Int = this.position++): Float? {
+			val type = this@LuaThread.typeAt(position)
+
+			if (type != LuaType.NUMBER && type != LuaType.NIL && type != LuaType.NONE)
+				throw IllegalArgumentException("bad argument #$position: double expected, got $type")
+
+			return this@LuaThread.getFloat(position)
+		}
+
 		fun nextOptionalLong(position: Int = this.position++): Long? {
 			val type = this@LuaThread.typeAt(position)
 
@@ -1136,6 +1181,12 @@ class LuaThread private constructor(
 		setTableValue()
 	}
 
+	fun <T> pushBinding(self: T, name: String, function: (T) -> Unit) {
+		push(name)
+		push { function.invoke(self); 0 }
+		setTableValue()
+	}
+
 	fun ensureExtraCapacity(maxSize: Int): Boolean {
 		return LuaJNR.INSTANCE.lua_checkstack(pointer, maxSize)
 	}
@@ -1376,6 +1427,40 @@ class LuaThread private constructor(
 		return setTableValue(key.toLong(), value)
 	}
 
+	fun setTableValue(key: String, value: Boolean?) {
+		value ?: return
+		this.push(key)
+		this.push(value)
+		this.setTableValue()
+	}
+
+	fun setTableValue(key: String, value: Boolean) {
+		this.push(key)
+		this.push(value)
+		this.setTableValue()
+	}
+
+	fun setTableValue(key: Int, value: Boolean?) {
+		return setTableValue(key.toLong(), value)
+	}
+
+	fun setTableValue(key: Int, value: Boolean) {
+		return setTableValue(key.toLong(), value)
+	}
+
+	fun setTableValue(key: Long, value: Boolean?) {
+		value ?: return
+		this.push(key)
+		this.push(value)
+		this.setTableValue()
+	}
+
+	fun setTableValue(key: Long, value: Boolean) {
+		this.push(key)
+		this.push(value)
+		this.setTableValue()
+	}
+
 	fun setTableValue(key: Long, value: JsonElement?) {
 		this.push(key)
 		this.push(value)

src/main/kotlin/ru/dbotthepony/kstarbound/lua/LuaUpdateComponent.kt

@@ -1,22 +1,32 @@
 package ru.dbotthepony.kstarbound.lua
 
+import org.apache.logging.log4j.LogManager
 import ru.dbotthepony.kstarbound.Starbound
 
-class LuaUpdateComponent(val lua: LuaEnvironment) {
+class LuaUpdateComponent(val lua: LuaThread, val name: Any) {
 	var stepCount = 1.0
 	private var steps = 0.0
+	private var lastType = LuaType.FUNCTION
+
+	private fun updateDt(args: LuaThread.ArgStack): Int {
+		args.lua.push(stepCount * Starbound.TIMESTEP)
+		return 1
+	}
+
+	private fun setUpdateDelta(args: LuaThread.ArgStack): Int {
+		stepCount = args.nextDouble()
+		return 0
+	}
 
 	init {
-		val script = lua.newTable()
-		lua.globals["script"] = script
+		lua.pushTable()
+		lua.dup()
+		lua.storeGlobal("script")
 
-		script["updateDt"] = luaFunction {
-			returnBuffer.setTo(stepCount * Starbound.TIMESTEP)
-		}
+		lua.setTableValue("updateDt", ::updateDt)
+		lua.setTableValue("setUpdateDelta", ::setUpdateDelta)
 
-		script["setUpdateDelta"] = luaFunction { ticks: Number ->
-			stepCount = ticks.toDouble()
-		}
+		lua.pop()
 	}
 
 	fun update(delta: Double, preRun: () -> Unit) {
@@ -27,20 +37,32 @@ class LuaUpdateComponent(val lua: LuaEnvironment) {
 
 		if (steps >= stepCount) {
 			steps %= stepCount
-			preRun()
-			lua.invokeGlobal("update", stepCount * Starbound.TIMESTEP)
+
+			val type = lua.loadGlobal("update")
+
+			if (type != lastType) {
+				lastType = type
+
+				if (type != LuaType.FUNCTION) {
+					LOGGER.warn("Lua environment for $name has $type as global 'update', script update wasn't called")
+				}
+			}
+
+			if (type == LuaType.FUNCTION) {
+				preRun()
+				lua.push(stepCount * Starbound.TIMESTEP)
+				lua.call(1)
+			} else {
+				lua.pop()
+			}
 		}
 	}
 
-	fun update(delta: Double, vararg arguments: Any?) {
-		if (stepCount == 0.0)
-			return
+	fun update(delta: Double) {
+		return update(delta) {}
+	}
 
-		steps += delta / Starbound.TIMESTEP
-
-		if (steps >= stepCount) {
-			steps %= stepCount
-			lua.invokeGlobal("update", stepCount * Starbound.TIMESTEP, *arguments)
-		}
+	companion object {
+		private val LOGGER = LogManager.getLogger()
 	}
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/AnimatorBindings.kt

@@ -1,261 +1,318 @@
 package ru.dbotthepony.kstarbound.lua.bindings
 
-import org.classdump.luna.ByteString
-import org.classdump.luna.Table
-import ru.dbotthepony.kommons.collect.map
-import ru.dbotthepony.kommons.collect.toList
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.LuaType
+import ru.dbotthepony.kstarbound.lua.nextAABB
+import ru.dbotthepony.kstarbound.lua.nextColor
+import ru.dbotthepony.kstarbound.lua.nextOptionalVector2f
+import ru.dbotthepony.kstarbound.lua.nextPoly
+import ru.dbotthepony.kstarbound.lua.nextVector2d
+import ru.dbotthepony.kstarbound.lua.nextVector2f
+import ru.dbotthepony.kstarbound.lua.push
 import ru.dbotthepony.kstarbound.math.vector.Vector2f
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.get
-import ru.dbotthepony.kstarbound.lua.iterator
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.luaFunctionArray
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.toAABB
-import ru.dbotthepony.kstarbound.lua.toByteString
-import ru.dbotthepony.kstarbound.lua.toColor
-import ru.dbotthepony.kstarbound.lua.toPoly
-import ru.dbotthepony.kstarbound.lua.toVector2d
-import ru.dbotthepony.kstarbound.lua.toVector2f
+import ru.dbotthepony.kstarbound.util.sbIntern
 import ru.dbotthepony.kstarbound.world.entities.Animator
 
-fun provideAnimatorBindings(self: Animator, lua: LuaEnvironment) {
-	val callbacks = lua.newTable()
-	lua.globals["animator"] = callbacks
-
-	callbacks["setAnimationState"] = luaFunction { type: ByteString, state: ByteString, alwaysStart: Boolean? ->
-		returnBuffer.setTo(self.setActiveState(type.decode(), state.decode(), alwaysStart ?: false))
-	}
-
-	callbacks["animationState"] = luaFunction { type: ByteString ->
-		returnBuffer.setTo(self.animationState(type.decode()))
-	}
-
-	callbacks["animationStateProperty"] = luaFunction { type: ByteString, key: ByteString ->
-		returnBuffer.setTo(self.stateProperty(type.decode(), key.decode()))
-	}
-
-	callbacks["setGlobalTag"] = luaFunction { key: ByteString, value: ByteString ->
-		self.setGlobalTag(key.decode(), value.decode())
-	}
-
-	callbacks["setPartTag"] = luaFunction { part: ByteString, key: ByteString, value: ByteString ->
-		self.setPartTag(part.decode(), key.decode(), value.decode())
-	}
-
-	callbacks["setFlipped"] = luaFunction { isFlipped: Boolean, centerLine: Double? ->
-		self.isFlipped = isFlipped
-		self.flippedRelativeCenterLine = centerLine ?: 0.0
-	}
-
-	callbacks["setAnimationRate"] = luaFunction { rate: Double ->
-		self.animationRate = rate
-	}
-
-	callbacks["rotateGroup"] = luaFunction { group: ByteString, rotation: Number, immediate: Boolean? ->
-		self.rotateGroup(group.decode(), rotation.toDouble(), immediate ?: false)
-	}
-
-	callbacks["currentRotationAngle"] = luaFunction { group: ByteString ->
-		returnBuffer.setTo(self.currentRotationAngle(group.decode()))
-	}
-
-	callbacks["targetRotationAngle"] = luaFunction { group: ByteString ->
-		returnBuffer.setTo(self.targetRotationAngle(group.decode()))
-	}
-
-	callbacks["hasRotationGroup"] = luaFunction { group: ByteString ->
-		returnBuffer.setTo(self.hasRotationGroup(group.decode()))
-	}
-
-	callbacks["rotationGroups"] = luaFunction {
-		val groups = self.rotationGroups()
-		val keys = newTable(groups.size, 0)
-		groups.withIndex().forEach { (i, v) -> keys[i + 1L] = v.toByteString() }
-		returnBuffer.setTo(keys)
-	}
-
-	callbacks["hasTransformationGroup"] = luaFunction { group: ByteString ->
-		returnBuffer.setTo(self.hasTransformationGroup(group.decode()))
-	}
-
-	callbacks["transformationGroups"] = luaFunction {
-		val groups = self.transformationGroups()
-		val keys = newTable(groups.size, 0)
-		groups.withIndex().forEach { (i, v) -> keys[i + 1L] = v }
-		returnBuffer.setTo(keys)
-	}
-
-	callbacks["translateTransformGroup"] = luaFunction { group: ByteString, translation: Table ->
-		self.translateTransformGroup(group.decode(), toVector2f(translation))
-	}
-
-	callbacks["rotateTransformGroup"] = luaFunction { group: ByteString, rotation: Double, center: Table? ->
-		self.rotateTransformGroup(group.decode(), rotation.toFloat(), if (center == null) Vector2f.ZERO else toVector2f(center))
-	}
-
-	callbacks["scaleTransformationGroup"] = luaFunction { group: ByteString, scale: Any, center: Table? ->
-		if (scale is Number) {
-			self.scaleTransformationGroup(group.decode(), Vector2f(scale.toFloat(), scale.toFloat()), if (center == null) Vector2f.ZERO else toVector2f(center))
-		} else {
-			self.scaleTransformationGroup(group.decode(), toVector2f(scale), if (center == null) Vector2f.ZERO else toVector2f(center))
-		}
-	}
-
-	callbacks["transformTransformationGroup"] = luaFunctionArray { arguments: Array<out Any?> ->
-		val group = arguments[0] as ByteString
-		val r00 = arguments[1] as Number
-		val r01 = arguments[2] as Number
-		val r02 = arguments[3] as Number
-		val r10 = arguments[4] as Number
-		val r11 = arguments[5] as Number
-		val r12 = arguments[6] as Number
-
-		self.transformTransformationGroup(group.decode(), r00.toFloat(),
-			r01.toFloat(),
-			r02.toFloat(),
-			r10.toFloat(),
-			r11.toFloat(),
-			r12.toFloat())
-	}
-
-	callbacks["resetTransformationGroup"] = luaFunction { group: ByteString ->
-		self.resetTransformationGroup(group.decode())
-	}
-
-	callbacks["particleEmitters"] = luaFunction {
-		val groups = self.particleEmitters()
-		val keys = newTable(groups.size, 0)
-		groups.withIndex().forEach { (i, v) -> keys[i + 1L] = v }
-		returnBuffer.setTo(keys)
-	}
-
-	callbacks["hasParticleEmitter"] = luaFunction { group: ByteString ->
-		returnBuffer.setTo(self.hasParticleEmitter(group.decode()))
-	}
-
-	callbacks["setParticleEmitterActive"] = luaFunction { emitter: ByteString, state: Boolean ->
-		self.setParticleEmitterActive(emitter.decode(), state)
-	}
-
-	callbacks["setParticleEmitterEmissionRate"] = luaFunction { emitter: ByteString, rate: Number ->
-		self.setParticleEmitterEmissionRate(emitter.decode(), rate.toDouble())
-	}
-
-	callbacks["setParticleEmitterBurstCount"] = luaFunction { emitter: ByteString, count: Number ->
-		self.setParticleEmitterBurstCount(emitter.decode(), count.toInt())
-	}
-
-	callbacks["setParticleEmitterOffsetRegion"] = luaFunction { emitter: ByteString, region: Table ->
-		self.setParticleEmitterOffsetRegion(emitter.decode(), toAABB(region))
-	}
-
-	callbacks["burstParticleEmitter"] = luaFunction { emitter: ByteString ->
-		self.burstParticleEmitter(emitter.decode())
-	}
-
-	callbacks["lights"] = luaFunction {
-		val groups = self.lights()
-		val keys = newTable(groups.size, 0)
-		groups.withIndex().forEach { (i, v) -> keys[i + 1L] = v }
-		returnBuffer.setTo(keys)
-	}
-
-	callbacks["hasLight"] = luaFunction { light: ByteString ->
-		returnBuffer.setTo(self.hasLight(light.decode()))
-	}
-
-	callbacks["setLightActive"] = luaFunction { light: ByteString, state: Boolean ->
-		self.setLightActive(light.decode(), state)
-	}
-
-	callbacks["setLightPosition"] = luaFunction { light: ByteString, position: Table ->
-		self.setLightPosition(light.decode(), toVector2d(position))
-	}
-
-	callbacks["setLightColor"] = luaFunction { light: ByteString, color: Table ->
-		self.setLightColor(light.decode(), toColor(color))
-	}
-
-	callbacks["setLightPointAngle"] = luaFunction { light: ByteString, angle: Number ->
-		self.setLightPointAngle(light.decode(), angle.toDouble())
-	}
-
-	callbacks["sounds"] = luaFunction {
-		val groups = self.sounds()
-		val keys = newTable(groups.size, 0)
-		groups.withIndex().forEach { (i, v) -> keys[i + 1L] = v }
-		returnBuffer.setTo(keys)
-	}
-
-	callbacks["hasSound"] = luaFunction { sound: ByteString ->
-		returnBuffer.setTo(self.hasSound(sound.decode()))
-	}
-
-	callbacks["setSoundPool"] = luaFunction { sound: ByteString, sounds: Table ->
-		self.setSoundPool(sound.decode(), sounds.iterator().map { (it.value as ByteString).decode() }.toList())
-	}
-
-	callbacks["setSoundPosition"] = luaFunction { sound: ByteString, position: Table ->
-		self.setSoundPosition(sound.decode(), toVector2d(position))
-	}
-
-	callbacks["playSound"] = luaFunction { sound: ByteString, loops: Number? ->
-		self.playSound(sound.decode(), loops?.toInt() ?: 0)
-	}
-
-	callbacks["setSoundVolume"] = luaFunction { sound: ByteString, volume: Number, rampTime: Number? ->
-		self.setSoundVolume(sound.decode(), volume.toDouble(), rampTime?.toDouble() ?: 0.0)
-	}
-
-	callbacks["setSoundPitch"] = luaFunction { sound: ByteString, pitch: Number, rampTime: Number? ->
-		self.setSoundPitch(sound.decode(), pitch.toDouble(), rampTime?.toDouble() ?: 0.0)
-	}
-
-	callbacks["stopAllSounds"] = luaFunction { sound: ByteString, rampTime: Number? ->
-		self.stopAllSounds(sound.decode(), rampTime?.toDouble() ?: 0.0)
-	}
-
-	callbacks["effects"] = luaFunction {
-		val groups = self.effects()
-		val keys = newTable(groups.size, 0)
-		groups.withIndex().forEach { (i, v) -> keys[i + 1L] = v }
-		returnBuffer.setTo(keys)
-	}
-
-	callbacks["hasEffect"] = luaFunction { effect: ByteString ->
-		returnBuffer.setTo(self.hasEffect(effect.decode()))
-	}
-
-	callbacks["setEffectActive"] = luaFunction { effect: ByteString, state: Boolean ->
-		self.setEffectActive(effect.decode(), state)
-	}
-
-	callbacks["parts"] = luaFunction {
-		val groups = self.parts()
-		val keys = newTable(groups.size, 0)
-		groups.withIndex().forEach { (i, v) -> keys[i + 1L] = v }
-		returnBuffer.setTo(keys)
-	}
-
-	callbacks["partPoint"] = luaFunction { part: ByteString, property: ByteString ->
-		returnBuffer.setTo(self.partPoint(part.decode(), property.decode())?.let { from(it) })
-	}
-
-	callbacks["partPoly"] = luaFunction { part: ByteString, property: ByteString ->
-		returnBuffer.setTo(self.partPoly(part.decode(), property.decode())?.let { from(it) })
-	}
-
-	callbacks["partProperty"] = luaFunction { part: ByteString, property: ByteString ->
-		returnBuffer.setTo(from(self.partProperty(part.decode(), property.decode())))
-	}
-
-	callbacks["transformPoint"] = luaFunction { point: Table, part: ByteString ->
-		returnBuffer.setTo(from(toVector2d(point).times(self.partTransformation(part.decode()))))
-	}
-
-	callbacks["transformPoly"] = luaFunction { poly: Table, part: ByteString ->
-		returnBuffer.setTo(from(toPoly(poly).transform(self.partTransformation(part.decode()))))
-	}
+private fun setAnimationState(self: Animator, args: LuaThread.ArgStack): Int {
+	val type = args.nextString()
+	val state = args.nextString()
+	val alwaysStart = args.nextOptionalBoolean() == true
+	self.setActiveState(type, state, alwaysStart)
+	return 0
+}
+
+private fun animationState(self: Animator, args: LuaThread.ArgStack): Int {
+	val type = args.nextString()
+	args.lua.push(self.animationState(type))
+	return 1
+}
+
+private fun animationStateProperty(self: Animator, args: LuaThread.ArgStack): Int {
+	val key = args.nextString()
+	val value = args.nextString()
+	args.lua.push(self.stateProperty(key, value))
+	return 1
+}
+
+private fun setGlobalTag(self: Animator, args: LuaThread.ArgStack): Int {
+	val key = args.nextString().sbIntern()
+	val value = args.nextString().sbIntern()
+	self.setGlobalTag(key, value)
+	return 0
+}
+
+private fun setPartTag(self: Animator, args: LuaThread.ArgStack): Int {
+	val part = args.nextString().sbIntern()
+	val key = args.nextString().sbIntern()
+	val value = args.nextString().sbIntern()
+	self.setPartTag(part, key, value)
+	return 0
+}
+
+private fun setFlipped(self: Animator, args: LuaThread.ArgStack): Int {
+	self.isFlipped = args.nextBoolean()
+	self.flippedRelativeCenterLine = args.nextOptionalDouble() ?: 0.0
+	return 0
+}
+
+private fun setAnimationRate(self: Animator, args: LuaThread.ArgStack): Int {
+	self.animationRate = args.nextDouble()
+	return 0
+}
+
+private fun rotateGroup(self: Animator, args: LuaThread.ArgStack): Int {
+	val group = args.nextString()
+	val rotation = args.nextDouble()
+	val immediate = args.nextOptionalBoolean() == true
+	self.rotateGroup(group, rotation, immediate)
+	return 0
+}
+
+private fun currentRotationAngle(self: Animator, args: LuaThread.ArgStack): Int {
+	val group = args.nextString()
+	args.lua.push(self.currentRotationAngle(group))
+	return 1
+}
+
+private fun targetRotationAngle(self: Animator, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.targetRotationAngle(args.nextString()))
+	return 1
+}
+
+private fun has(self: Animator, getter: (Animator, String) -> Boolean, args: LuaThread.ArgStack): Int {
+	args.lua.push(getter(self, args.nextString()))
+	return 1
+}
+
+private fun pushNames(self: Animator, getter: (Animator) -> Collection<String>, args: LuaThread.ArgStack): Int {
+	val values = getter(self)
+	args.lua.pushTable(values.size)
+
+	for ((i, v) in values.withIndex())
+		args.lua.setTableValue(i + 1L, v)
+
+	return 1
+}
+
+private fun translateTransformGroup(self: Animator, args: LuaThread.ArgStack): Int {
+	val group = args.nextString()
+	val translation = args.nextVector2f()
+	self.translateTransformGroup(group, translation)
+	return 0
+}
+
+private fun rotateTransformGroup(self: Animator, args: LuaThread.ArgStack): Int {
+	val group = args.nextString()
+	val rotation = args.nextFloat()
+	val center = args.nextOptionalVector2f() ?: Vector2f.ZERO
+	self.rotateTransformGroup(group, rotation, center)
+	return 0
+}
+
+private fun scaleTransformationGroup(self: Animator, args: LuaThread.ArgStack): Int {
+	val group = args.nextString()
+
+	if (args.peek() == LuaType.NUMBER) {
+		val value = args.nextFloat()
+		self.scaleTransformationGroup(group, Vector2f(value, value), args.nextOptionalVector2f() ?: Vector2f.ZERO)
+	} else {
+		self.scaleTransformationGroup(group, args.nextVector2f(), args.nextOptionalVector2f() ?: Vector2f.ZERO)
+	}
+
+	return 0
+}
+
+private fun transformTransformationGroup(self: Animator, args: LuaThread.ArgStack): Int {
+	val group = args.nextString()
+	val r00 = args.nextFloat()
+	val r01 = args.nextFloat()
+	val r02 = args.nextFloat()
+	val r10 = args.nextFloat()
+	val r11 = args.nextFloat()
+	val r12 = args.nextFloat()
+
+	self.transformTransformationGroup(
+		group,
+		r00,
+	    r01,
+	    r02,
+	    r10,
+	    r11,
+	    r12)
+
+	return 0
+}
+
+private fun resetTransformationGroup(self: Animator, args: LuaThread.ArgStack): Int {
+	val group = args.nextString()
+	self.resetTransformationGroup(group)
+	return 0
+}
+
+private fun setParticleEmitterActive(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setParticleEmitterActive(args.nextString(), args.nextBoolean())
+	return 0
+}
+
+private fun setParticleEmitterEmissionRate(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setParticleEmitterEmissionRate(args.nextString(), args.nextDouble())
+	return 0
+}
+
+private fun setParticleEmitterBurstCount(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setParticleEmitterBurstCount(args.nextString(), args.nextInt())
+	return 0
+}
+
+private fun setParticleEmitterOffsetRegion(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setParticleEmitterOffsetRegion(args.nextString(), args.nextAABB())
+	return 0
+}
+
+private fun burstParticleEmitter(self: Animator, args: LuaThread.ArgStack): Int {
+	self.burstParticleEmitter(args.nextString())
+	return 0
+}
+
+private fun setLightActive(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setLightActive(args.nextString(), args.nextBoolean())
+	return 0
+}
+
+private fun setLightPosition(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setLightPosition(args.nextString(), args.nextVector2d())
+	return 0
+}
+
+private fun setLightColor(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setLightColor(args.nextString(), args.nextColor())
+	return 0
+}
+
+private fun setLightPointAngle(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setLightPointAngle(args.nextString(), args.nextDouble())
+	return 0
+}
+
+private fun setSoundPool(self: Animator, args: LuaThread.ArgStack): Int {
+	val pool = args.nextString()
+	val sounds = args.readTableValues { getString(it)?.sbIntern() ?: throw IllegalArgumentException("invalid values in sound pool table") }
+	self.setSoundPool(pool, sounds)
+	return 0
+}
+
+private fun setSoundPosition(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setSoundPosition(args.nextString(), args.nextVector2d())
+	return 0
+}
+
+private fun playSound(self: Animator, args: LuaThread.ArgStack): Int {
+	self.playSound(args.nextString(), args.nextOptionalInt() ?: 0)
+	return 0
+}
+
+private fun setSoundVolume(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setSoundVolume(args.nextString(), args.nextDouble(), args.nextOptionalDouble() ?: 0.0)
+	return 0
+}
+
+private fun setSoundPitch(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setSoundPitch(args.nextString(), args.nextDouble(), args.nextOptionalDouble() ?: 0.0)
+	return 0
+}
+
+private fun stopAllSounds(self: Animator, args: LuaThread.ArgStack): Int {
+	self.stopAllSounds(args.nextString(), args.nextOptionalDouble() ?: 0.0)
+	return 0
+}
+
+private fun setEffectActive(self: Animator, args: LuaThread.ArgStack): Int {
+	self.setEffectActive(args.nextString(), args.nextBoolean())
+	return 0
+}
+
+private fun partPoint(self: Animator, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.partPoint(args.nextString(), args.nextString()))
+	return 1
+}
+
+private fun partPoly(self: Animator, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.partPoly(args.nextString(), args.nextString()))
+	return 1
+}
+
+private fun partProperty(self: Animator, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.partProperty(args.nextString(), args.nextString()))
+	return 1
+}
+
+private fun transformPoint(self: Animator, args: LuaThread.ArgStack): Int {
+	args.lua.push(args.nextVector2d() * self.partTransformation(args.nextString()))
+	return 1
+}
+
+private fun transformPoly(self: Animator, args: LuaThread.ArgStack): Int {
+	args.lua.push(args.nextPoly().transform(self.partTransformation(args.nextString())))
+	return 1
+}
+
+fun provideAnimatorBindings(self: Animator, lua: LuaThread) {
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("animator")
+
+	lua.pushBinding(self, "setAnimationState", ::setAnimationState)
+	lua.pushBinding(self, "animationState", ::animationState)
+	lua.pushBinding(self, "animationStateProperty", ::animationStateProperty)
+	lua.pushBinding(self, "setGlobalTag", ::setGlobalTag)
+	lua.pushBinding(self, "setPartTag", ::setPartTag)
+	lua.pushBinding(self, "setFlipped", ::setFlipped)
+	lua.pushBinding(self, "setAnimationRate", ::setAnimationRate)
+	lua.pushBinding(self, "rotateGroup", ::rotateGroup)
+	lua.pushBinding(self, "currentRotationAngle", ::currentRotationAngle)
+	lua.pushBinding(self, "targetRotationAngle", ::targetRotationAngle)
+	lua.pushBinding(self, "translateTransformGroup", ::translateTransformGroup)
+	lua.pushBinding(self, "rotateTransformGroup", ::rotateTransformGroup)
+	lua.pushBinding(self, "scaleTransformationGroup", ::scaleTransformationGroup)
+	lua.pushBinding(self, "transformTransformationGroup", ::transformTransformationGroup)
+	lua.pushBinding(self, "resetTransformationGroup", ::resetTransformationGroup)
+	lua.pushBinding(self, "setParticleEmitterActive", ::setParticleEmitterActive)
+	lua.pushBinding(self, "setParticleEmitterEmissionRate", ::setParticleEmitterEmissionRate)
+	lua.pushBinding(self, "setParticleEmitterBurstCount", ::setParticleEmitterBurstCount)
+	lua.pushBinding(self, "setParticleEmitterOffsetRegion", ::setParticleEmitterOffsetRegion)
+	lua.pushBinding(self, "burstParticleEmitter", ::burstParticleEmitter)
+	lua.pushBinding(self, "setLightActive", ::setLightActive)
+	lua.pushBinding(self, "setLightPosition", ::setLightPosition)
+	lua.pushBinding(self, "setLightColor", ::setLightColor)
+	lua.pushBinding(self, "setLightPointAngle", ::setLightPointAngle)
+	lua.pushBinding(self, "setSoundPool", ::setSoundPool)
+	lua.pushBinding(self, "setSoundPosition", ::setSoundPosition)
+	lua.pushBinding(self, "playSound", ::playSound)
+	lua.pushBinding(self, "setSoundVolume", ::setSoundVolume)
+	lua.pushBinding(self, "setSoundPitch", ::setSoundPitch)
+	lua.pushBinding(self, "stopAllSounds", ::stopAllSounds)
+	lua.pushBinding(self, "setEffectActive", ::setEffectActive)
+	lua.pushBinding(self, "partPoint", ::partPoint)
+	lua.pushBinding(self, "partPoly", ::partPoly)
+	lua.pushBinding(self, "partProperty", ::partProperty)
+	lua.pushBinding(self, "transformPoint", ::transformPoint)
+	lua.pushBinding(self, "transformPoly", ::transformPoly)
+
+	lua.pushBinding(self, Animator::hasRotationGroup, "hasRotationGroup", ::has)
+	lua.pushBinding(self, Animator::hasTransformationGroup, "hasTransformationGroup", ::has)
+	lua.pushBinding(self, Animator::hasParticleEmitter, "hasParticleEmitter", ::has)
+	lua.pushBinding(self, Animator::hasLight, "hasLight", ::has)
+	lua.pushBinding(self, Animator::hasSound, "hasSound", ::has)
+	lua.pushBinding(self, Animator::hasEffect, "hasEffect", ::has)
+	lua.pushBinding(self, Animator::hasPart, "hasPart", ::has)
+
+	lua.pushBinding(self, Animator::rotationGroups, "rotationGroups", ::pushNames)
+	lua.pushBinding(self, Animator::transformationGroups, "transformationGroups", ::pushNames)
+	lua.pushBinding(self, Animator::particleEmitters, "particleEmitters", ::pushNames)
+	lua.pushBinding(self, Animator::lights, "lights", ::pushNames)
+	lua.pushBinding(self, Animator::sounds, "sounds", ::pushNames)
+	lua.pushBinding(self, Animator::effects, "effects", ::pushNames)
+	lua.pushBinding(self, Animator::parts, "parts", ::pushNames)
+
+	lua.pop()
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/CommonBindings.kt

@@ -0,0 +1,41 @@
+package ru.dbotthepony.kstarbound.lua.bindings
+
+import com.google.common.collect.ImmutableList
+import ru.dbotthepony.kstarbound.Starbound
+import ru.dbotthepony.kstarbound.defs.quest.QuestArcDescriptor
+import ru.dbotthepony.kstarbound.defs.quest.QuestDescriptor
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.LuaType
+import ru.dbotthepony.kstarbound.util.sbIntern
+
+fun <T : Any> setOfferedQuests(self: T, prop: (T) -> MutableList<QuestArcDescriptor>, args: LuaThread.ArgStack): Int {
+	val offeredQuests = prop(self)
+	offeredQuests.clear()
+
+	if (args.hasNext) {
+		offeredQuests.addAll(args.readTableValues {
+			val peek = typeAt(it)
+
+			if (peek == LuaType.TABLE) {
+				Starbound.gson.fromJson(getJson(it)!!, QuestArcDescriptor::class.java)
+			} else if (peek == LuaType.STRING) {
+				QuestArcDescriptor(ImmutableList.of(QuestDescriptor(getString(it)!!.sbIntern())))
+			} else {
+				throw IllegalArgumentException("Invalid value in provided quests table: $peek")
+			}
+		})
+	}
+
+	return 0
+}
+
+fun <T : Any> setTurnInQuests(self: T, prop: (T) -> MutableList<String>, args: LuaThread.ArgStack): Int {
+	val turnInQuests = prop(self)
+	turnInQuests.clear()
+
+	if (args.hasNext) {
+		turnInQuests.addAll(args.readTableValues { getString(it)?.sbIntern() ?: throw IllegalArgumentException("Turn-in quests table contains non-string values") })
+	}
+
+	return 0
+}

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/EntityBindings.kt

@@ -1,13 +1,9 @@
 package ru.dbotthepony.kstarbound.lua.bindings
 
-import ru.dbotthepony.kstarbound.math.vector.Vector2d
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.get
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.toByteString
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.push
 import ru.dbotthepony.kstarbound.math.Line2d
+import ru.dbotthepony.kstarbound.math.vector.Vector2d
 import ru.dbotthepony.kstarbound.world.entities.AbstractEntity
 import ru.dbotthepony.kstarbound.world.entities.ActorEntity
 import ru.dbotthepony.kstarbound.world.entities.MonsterEntity
@@ -15,7 +11,84 @@ import ru.dbotthepony.kstarbound.world.entities.NPCEntity
 import ru.dbotthepony.kstarbound.world.entities.player.PlayerEntity
 import ru.dbotthepony.kstarbound.world.entities.tile.WorldObject
 
-fun provideEntityBindings(self: AbstractEntity, lua: LuaEnvironment) {
+private fun id(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.entityID.toLong())
+	return 1
+}
+
+private fun position(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.position)
+	return 1
+}
+
+private fun entityType(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.type.jsonName)
+	return 1
+}
+
+private fun uniqueId(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.uniqueID.get())
+	return 1
+}
+
+private fun persistent(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.isPersistent)
+	return 1
+}
+
+private fun entityInSight(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	val target = self.world.entities[args.nextInt()]
+
+	if (target == null) {
+		args.lua.push(false)
+	} else {
+		args.lua.push(self.world.chunkMap.collide(Line2d(self.position, target.position)) { it.type.isSolidCollision } == null)
+	}
+
+	return 1
+}
+
+private fun isValidTarget(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	val target = self.world.entities[args.nextInt()]
+
+	if (target == null) {
+		args.lua.push(false)
+	} else {
+		if (!self.team.get().canDamage(target.team.get(), self == target)) // original engine always passes `false` to `isSelfDamage`
+			args.lua.push(false)
+		else if (target is MonsterEntity)
+			args.lua.push(target.isAggressive)
+		else
+			args.lua.push(target is PlayerEntity)
+
+		// TODO: NPC handling here
+	}
+
+	return 1
+}
+
+private fun damageTeam(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	args.lua.pushTable(hashSize = 2)
+	args.lua.setTableValue("team", self.team.get().team)
+	args.lua.setTableValue("type", self.team.get().type.jsonName)
+	return 1
+}
+
+private fun distanceToEntity(self: AbstractEntity, args: LuaThread.ArgStack): Int {
+	val target = self.world.entities[args.nextInt()]
+
+	if (target != null) {
+		args.lua.push(self.world.geometry.diff(target.position, self.position))
+	} else {
+		args.lua.push(Vector2d.ZERO)
+	}
+
+	return 1
+}
+
+fun provideEntityBindings(self: AbstractEntity, lua: LuaThread) {
+	provideWorldBindings(self.world, lua)
+
 	if (self is WorldObject)
 		provideWorldObjectBindings(self, lua)
 
@@ -28,52 +101,19 @@ fun provideEntityBindings(self: AbstractEntity, lua: LuaEnvironment) {
 	if (self is NPCEntity)
 		provideNPCBindings(self, lua)
 
-	//provideWorldBindings(self.world, lua)
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("entity")
 
-	val table = lua.newTable()
-	lua.globals["entity"] = table
+	lua.pushBinding(self, "id", ::id)
+	lua.pushBinding(self, "position", ::position)
+	lua.pushBinding(self, "entityType", ::entityType)
+	lua.pushBinding(self, "uniqueId", ::uniqueId)
+	lua.pushBinding(self, "persistent", ::persistent)
+	lua.pushBinding(self, "entityInSight", ::entityInSight)
+	lua.pushBinding(self, "isValidTarget", ::isValidTarget)
+	lua.pushBinding(self, "damageTeam", ::damageTeam)
+	lua.pushBinding(self, "distanceToEntity", ::distanceToEntity)
 
-	table["id"] = luaFunction { returnBuffer.setTo(self.entityID.toLong()) }
-	table["position"] = luaFunction { returnBuffer.setTo(from(self.position)) }
-	table["entityType"] = luaFunction { returnBuffer.setTo(self.type.jsonName.toByteString()) }
-	table["uniqueId"] = luaFunction { returnBuffer.setTo(self.uniqueID.get().toByteString()) }
-	table["persistent"] = luaFunction { returnBuffer.setTo(self.isPersistent) }
-
-	table["entityInSight"] = luaFunction { target: Number ->
-		val entity = self.world.entities[target.toInt()] ?: return@luaFunction returnBuffer.setTo(false)
-		returnBuffer.setTo(self.world.chunkMap.collide(Line2d(self.position, entity.position)) { it.type.isSolidCollision } == null)
-	}
-
-	table["isValidTarget"] = luaFunction { target: Number ->
-		val entity = self.world.entities[target.toInt()] ?: return@luaFunction returnBuffer.setTo(false)
-
-		if (!self.team.get().canDamage(entity.team.get(), self == entity)) // original engine always passes `false` to `isSelfDamage`
-			return@luaFunction returnBuffer.setTo(false)
-
-		if (entity is MonsterEntity)
-			return@luaFunction returnBuffer.setTo(entity.isAggressive)
-
-		// TODO: NPC handling here
-
-		returnBuffer.setTo(entity is PlayerEntity)
-	}
-
-	table["damageTeam"] = luaFunction {
-		val result = newTable()
-
-		result["team"] = self.team.get().team.toLong()
-		result["type"] = self.type.jsonName.toByteString()
-
-		returnBuffer.setTo(result)
-	}
-
-	table["distanceToEntity"] = luaFunction { entity: Number ->
-		val find = self.world.entities[entity.toInt()]
-
-		if (find != null) {
-			returnBuffer.setTo(from(self.world.geometry.diff(find.position, self.position)))
-		} else {
-			returnBuffer.setTo(from(Vector2d.ZERO))
-		}
-	}
+	lua.pop()
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/MonsterBindings.kt

@@ -1,186 +1,227 @@
 package ru.dbotthepony.kstarbound.lua.bindings
 
+import com.google.common.collect.ImmutableMap
 import com.google.common.collect.ImmutableSet
-import org.classdump.luna.ByteString
-import org.classdump.luna.Table
-import ru.dbotthepony.kommons.collect.collect
-import ru.dbotthepony.kommons.collect.map
+import com.google.gson.JsonNull
+import com.google.gson.reflect.TypeToken
+import ru.dbotthepony.kommons.util.Either
+import ru.dbotthepony.kstarbound.Registry
 import ru.dbotthepony.kstarbound.Starbound
 import ru.dbotthepony.kstarbound.defs.DamageSource
 import ru.dbotthepony.kstarbound.defs.EntityDamageTeam
 import ru.dbotthepony.kstarbound.defs.PhysicsForceRegion
+import ru.dbotthepony.kstarbound.defs.item.TreasurePoolDefinition
 import ru.dbotthepony.kstarbound.fromJsonFast
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.get
-import ru.dbotthepony.kstarbound.lua.iterator
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.stream
-import ru.dbotthepony.kstarbound.lua.toJson
-import ru.dbotthepony.kstarbound.lua.toJsonFromLua
-import ru.dbotthepony.kstarbound.lua.toVector2d
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.nextVector2d
+import ru.dbotthepony.kstarbound.lua.push
 import ru.dbotthepony.kstarbound.util.SBPattern
 import ru.dbotthepony.kstarbound.util.sbIntern
 import ru.dbotthepony.kstarbound.util.valueOf
 import ru.dbotthepony.kstarbound.world.entities.ActorEntity
 import ru.dbotthepony.kstarbound.world.entities.MonsterEntity
 
-fun provideMonsterBindings(self: MonsterEntity, lua: LuaEnvironment) {
-	val callbacks = lua.newTable()
-	lua.globals["monster"] = callbacks
+private object DropPoolToken : TypeToken<Either<ImmutableMap<String, Registry.Ref<TreasurePoolDefinition>>, Registry.Ref<TreasurePoolDefinition>>>()
 
-	callbacks["type"] = luaFunction {
-		returnBuffer.setTo(self.variant.type)
-	}
-
-	callbacks["seed"] = luaFunction {
-		// what the fuck.
-		returnBuffer.setTo(self.variant.seed.toString())
-	}
-
-	callbacks["seedNumber"] = luaFunction {
-		returnBuffer.setTo(self.variant.seed)
-	}
-
-	callbacks["uniqueParameters"] = luaFunction {
-		returnBuffer.setTo(from(self.variant.uniqueParameters))
-	}
-
-	callbacks["level"] = luaFunction {
-		// TODO: this makes half sense
-		returnBuffer.setTo(self.monsterLevel ?: 0.0)
-	}
-
-	callbacks["setDamageOnTouch"] = luaFunction { damage: Boolean ->
-		self.damageOnTouch = damage
-	}
-
-	callbacks["setDamageSources"] = luaFunction { sources: Table? ->
-		self.customDamageSources.clear()
-
-		if (sources != null) {
-			for ((_, v) in sources) {
-				self.customDamageSources.add(Starbound.gson.fromJson((v as Table).toJson(), DamageSource::class.java))
-			}
-		}
-	}
-
-	callbacks["setDamageParts"] = luaFunction { parts: Table? ->
-		if (parts == null) {
-			self.animationDamageParts.clear()
-		} else {
-			val strings = parts.stream().map { (_, v) -> v.toString() }.collect(ImmutableSet.toImmutableSet())
-			self.animationDamageParts.removeIf { it !in strings }
-
-			for (v in strings) {
-				if (v !in self.animationDamageParts) {
-					self.animationDamageParts.add(v)
-				}
-			}
-		}
-	}
-
-	callbacks["setAggressive"] = luaFunction { isAggressive: Boolean ->
-		self.isAggressive = isAggressive
-	}
-
-	callbacks["setActiveSkillName"] = luaFunction { name: ByteString ->
-		self.activeSkillName = name.decode().sbIntern()
-	}
-
-	callbacks["setDropPool"] = luaFunction { pool: Any ->
-		self.dropPool = Starbound.gson.fromJsonFast(toJsonFromLua(pool))
-	}
-
-	callbacks["toAbsolutePosition"] = luaFunction { position: Table ->
-		returnBuffer.setTo(from(self.movement.getAbsolutePosition(toVector2d(position))))
-	}
-
-	callbacks["mouthPosition"] = luaFunction {
-		returnBuffer.setTo(from(self.mouthPosition))
-	}
-
-	// This callback is registered here rather than in
-	// makeActorMovementControllerCallbacks
-	// because it requires access to world
-	callbacks["flyTo"] = luaFunction { position: Table ->
-		self.movement.controlFly = self.world.geometry.diff(toVector2d(position), self.movement.position)
-	}
-
-	callbacks["setDeathParticleBurst"] = luaFunction { value: ByteString? ->
-		self.deathParticlesBurst = value?.decode()?.sbIntern() ?: ""
-	}
-
-	callbacks["setDeathSound"] = luaFunction { value: ByteString? ->
-		self.deathSound = value?.decode()?.sbIntern() ?: ""
-	}
-
-	callbacks["setPhysicsForces"] = luaFunction { forces: Table? ->
-		if (forces == null) {
-			self.forceRegions.clear()
-		} else {
-			self.forceRegions.clear()
-
-			for ((_, v) in forces) {
-				self.forceRegions.add(Starbound.gson.fromJsonFast(toJsonFromLua(v), PhysicsForceRegion::class.java))
-			}
-		}
-	}
-
-	callbacks["setName"] = luaFunction { name: ByteString? ->
-		self.networkName = name?.decode()
-	}
-
-	callbacks["setDisplayNametag"] = luaFunction { shouldDisplay: Boolean ->
-		self.displayNameTag = shouldDisplay
-	}
-
-	callbacks["say"] = luaFunction { line: ByteString, tags: Table? ->
-		var actualLine = line.decode()
-
-		if (tags != null) {
-			actualLine = SBPattern.of(actualLine).resolveOrSkip({ tags[it]?.toString() })
-		}
-
-		if (actualLine.isNotBlank()) {
-			self.addChatMessage(actualLine.sbIntern())
-		}
-
-		returnBuffer.setTo(actualLine.isNotBlank())
-	}
-
-	callbacks["sayPortrait"] = luaFunction { line: ByteString, portrait: ByteString, tags: Table? ->
-		var actualLine = line.decode()
-
-		if (tags != null) {
-			actualLine = SBPattern.of(actualLine).resolveOrSkip({ tags[it]?.toString() })
-		}
-
-		if (actualLine.isNotBlank()) {
-			self.addChatMessage(actualLine.sbIntern(), portrait.decode().sbIntern())
-		}
-
-		returnBuffer.setTo(actualLine.isNotBlank())
-	}
-
-	callbacks["setDamageTeam"] = luaFunction { team: Any ->
-		self.team.accept(Starbound.gson.fromJsonFast(toJsonFromLua(team), EntityDamageTeam::class.java))
-	}
-
-	callbacks["setUniqueId"] = luaFunction { name: ByteString? ->
-		self.uniqueID.accept(name?.decode()?.sbIntern())
-	}
-
-	callbacks["setDamageBar"] = luaFunction { type: ByteString ->
-		self.damageBarType = ActorEntity.DamageBarType.entries.valueOf(type.decode())
-	}
-
-	callbacks["setInteractive"] = luaFunction { isInteractive: Boolean ->
-		self.isInteractive = isInteractive
-	}
-
-	callbacks["setAnimationParameter"] = luaFunction { name: ByteString, value: Any? ->
-		self.scriptedAnimationParameters[name.decode().sbIntern()] = toJsonFromLua(value)
-	}
+private fun type(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.type)
+	return 1
+}
+
+private fun seed(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	// FIXME: what the fuck.
+	args.lua.push(self.variant.seed.toString())
+	return 1
+}
+
+private fun seedNumber(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.seed)
+	return 1
+}
+
+private fun uniqueParameters(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.uniqueParameters)
+	return 1
+}
+
+private fun level(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	// FIXME: this makes half sense
+	args.lua.push(self.monsterLevel ?: 0.0)
+	return 1
+}
+
+private fun setDamageOnTouch(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.damageOnTouch = args.nextBoolean()
+	return 0
+}
+
+private fun setDamageSources(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.customDamageSources.clear()
+
+	if (args.isNotEmpty) {
+		val sources = args.readTableValues { Starbound.gson.fromJsonFast(getJson(it)!!, DamageSource::class.java) }
+		self.customDamageSources.addAll(sources)
+	}
+
+	return 0
+}
+
+private fun setDamageParts(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	if (args.isEmpty) {
+		self.animationDamageParts.clear()
+	} else {
+		val strings = ImmutableSet.copyOf(args.readTableValues { getString(it) ?: throw IllegalArgumentException("Invalid values in damage parts table") })
+		self.animationDamageParts.removeIf { it !in strings }
+
+		for (v in strings) {
+			if (v !in self.animationDamageParts) {
+				self.animationDamageParts.add(v)
+			}
+		}
+	}
+
+	return 0
+}
+
+private fun setAggressive(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.isAggressive = args.nextBoolean()
+	return 0
+}
+
+private fun setActiveSkillName(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.activeSkillName = args.nextString().sbIntern()
+	return 0
+}
+
+private fun setDropPool(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.dropPool = Starbound.gson.fromJsonFast(args.nextOptionalJson() ?: JsonNull.INSTANCE, DropPoolToken)
+	return 0
+}
+
+private fun toAbsolutePosition(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.movement.getAbsolutePosition(args.nextVector2d()))
+	return 0
+}
+
+private fun mouthPosition(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.mouthPosition)
+	return 0
+}
+
+// This callback is registered here rather than in
+// makeActorMovementControllerCallbacks
+// because it requires access to world
+private fun flyTo(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.movement.controlFly = self.world.geometry.diff(args.nextVector2d(), self.movement.position)
+	return 0
+}
+
+private fun setDeathParticleBurst(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.deathParticlesBurst = args.nextOptionalString()?.sbIntern() ?: ""
+	return 0
+}
+
+private fun setDeathSound(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.deathSound = args.nextOptionalString()?.sbIntern() ?: ""
+	return 0
+}
+
+private fun setPhysicsForces(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.forceRegions.clear()
+
+	if (args.isNotEmpty) {
+		val forces = args.readTableValues { Starbound.gson.fromJsonFast(getJson(it)!!, PhysicsForceRegion::class.java) }
+		self.forceRegions.addAll(forces)
+	}
+
+	return 0
+}
+
+private fun setName(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.networkName = args.nextOptionalString()?.sbIntern() ?: ""
+	return 0
+}
+
+private fun setDisplayNametag(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.displayNameTag = args.nextBoolean()
+	return 0
+}
+
+private fun say(self: MonsterEntity, hasPortrait: Boolean, args: LuaThread.ArgStack): Int {
+	var line = args.nextString()
+	val portrait = if (hasPortrait) args.nextString() else null
+
+	if (args.hasNext) {
+		val tags = args.readTable(keyVisitor = { getString(it) ?: throw IllegalArgumentException("Pattern tag replacement table contains non-string keys") }, valueVisitor = { getString(it) ?: throw IllegalArgumentException("Pattern tag replacement table contains non-string values") })
+		line = SBPattern.of(line).resolveOrSkip({ t -> tags.firstOrNull { it.first == t }?.second })
+	}
+
+	if (line.isNotBlank()) {
+		self.addChatMessage(line.sbIntern(), portrait = portrait)
+		args.lua.push(true)
+	} else {
+		args.lua.push(false)
+	}
+
+	return 1
+}
+
+private fun setDamageTeam(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.team.accept(Starbound.gson.fromJsonFast(args.nextJson(), EntityDamageTeam::class.java))
+	return 0
+}
+
+private fun setUniqueId(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.uniqueID.accept(args.nextOptionalString()?.sbIntern())
+	return 0
+}
+
+private fun setDamageBar(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.damageBarType = ActorEntity.DamageBarType.entries.valueOf(args.nextString())
+	return 0
+}
+
+private fun setInteractive(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.isInteractive = args.nextBoolean()
+	return 0
+}
+
+private fun setAnimationParameter(self: MonsterEntity, args: LuaThread.ArgStack): Int {
+	self.scriptedAnimationParameters[args.nextString().sbIntern()] = args.nextJson()
+	return 0
+}
+
+fun provideMonsterBindings(self: MonsterEntity, lua: LuaThread) {
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("monster")
+
+	lua.pushBinding(self, "type", ::type)
+	lua.pushBinding(self, "seed", ::seed)
+	lua.pushBinding(self, "seedNumber", ::seedNumber)
+	lua.pushBinding(self, "uniqueParameters", ::uniqueParameters)
+	lua.pushBinding(self, "level", ::level)
+	lua.pushBinding(self, "setDamageOnTouch", ::setDamageOnTouch)
+	lua.pushBinding(self, "setDamageSources", ::setDamageSources)
+	lua.pushBinding(self, "setDamageParts", ::setDamageParts)
+	lua.pushBinding(self, "setAggressive", ::setAggressive)
+	lua.pushBinding(self, "setActiveSkillName", ::setActiveSkillName)
+	lua.pushBinding(self, "setDropPool", ::setDropPool)
+	lua.pushBinding(self, "toAbsolutePosition", ::toAbsolutePosition)
+	lua.pushBinding(self, "mouthPosition", ::mouthPosition)
+	lua.pushBinding(self, "flyTo", ::flyTo)
+	lua.pushBinding(self, "setDeathParticleBurst", ::setDeathParticleBurst)
+	lua.pushBinding(self, "setDeathSound", ::setDeathSound)
+	lua.pushBinding(self, "setPhysicsForces", ::setPhysicsForces)
+	lua.pushBinding(self, "setName", ::setName)
+	lua.pushBinding(self, "setDisplayNametag", ::setDisplayNametag)
+	lua.pushBinding(self, false, "say", ::say)
+	lua.pushBinding(self, true, "sayPortrait", ::say)
+	lua.pushBinding(self, "setDamageTeam", ::setDamageTeam)
+	lua.pushBinding(self, "setUniqueId", ::setUniqueId)
+	lua.pushBinding(self, "setDamageBar", ::setDamageBar)
+	lua.pushBinding(self, "setInteractive", ::setInteractive)
+	lua.pushBinding(self, "setAnimationParameter", ::setAnimationParameter)
+
+	lua.pop()
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/MovementControllerBindings.kt

@@ -1,20 +1,14 @@
 package ru.dbotthepony.kstarbound.lua.bindings
 
-import org.classdump.luna.Table
+import com.google.gson.JsonNull
 import ru.dbotthepony.kstarbound.Starbound
-import ru.dbotthepony.kstarbound.defs.actor.ActorMovementModifiers
 import ru.dbotthepony.kstarbound.defs.ActorMovementParameters
+import ru.dbotthepony.kstarbound.defs.actor.ActorMovementModifiers
 import ru.dbotthepony.kstarbound.fromJsonFast
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.tableFrom
-import ru.dbotthepony.kstarbound.lua.tableOf
-import ru.dbotthepony.kstarbound.lua.toByteString
-import ru.dbotthepony.kstarbound.lua.toJson
-import ru.dbotthepony.kstarbound.lua.toJsonFromLua
-import ru.dbotthepony.kstarbound.lua.toVector2d
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.nextVector2d
+import ru.dbotthepony.kstarbound.lua.push
+import ru.dbotthepony.kstarbound.lua.setTableValue
 import ru.dbotthepony.kstarbound.math.vector.Vector2d
 import ru.dbotthepony.kstarbound.world.Direction
 import ru.dbotthepony.kstarbound.world.entities.ActorMovementController
@@ -23,230 +17,369 @@ import ru.dbotthepony.kstarbound.world.physics.Poly
 import kotlin.math.PI
 
 class MovementControllerBindings(val self: ActorMovementController) {
-	fun init(lua: LuaEnvironment) {
-		val callbacks = lua.newTable()
-		lua.globals["mcontroller"] = callbacks
+	private fun mass(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.mass)
+		return 1
+	}
 
-		// pass-through
-		callbacks["mass"] = luaFunction {
-			returnBuffer.setTo(self.mass)
+	private fun localBoundBox(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.computeLocalCollisionAABB())
+		return 1
+	}
+
+	// TODO
+	private fun boundBox(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.computeLocalCollisionAABB())
+		return 1
+	}
+
+	private fun collisionBoundBox(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.computeGlobalCollisionAABB())
+		return 1
+	}
+
+	private fun collisionPoly(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.movementParameters.collisionPoly?.map({ it }, { it.firstOrNull() }) ?: Poly.EMPTY)
+		return 1
+	}
+
+	private fun collisionPolies(args: LuaThread.ArgStack): Int {
+		val result = self.movementParameters.collisionPoly?.map({ listOf(it) }, { it }) ?: listOf(Poly.EMPTY)
+		args.lua.pushTable(result.size)
+
+		for ((i, v) in result.withIndex())
+			args.lua.setTableValue(i + 1L, v)
+
+		return 1
+	}
+
+	private fun collisionBody(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.computeGlobalHitboxes().firstOrNull() ?: Poly.EMPTY)
+		return 1
+	}
+
+
+	private fun collisionBodies(args: LuaThread.ArgStack): Int {
+		val result = self.computeGlobalHitboxes()
+		args.lua.pushTable(result.size)
+
+		for ((i, v) in result.withIndex())
+			args.lua.setTableValue(i + 1L, v)
+
+		return 1
+	}
+
+	private fun position(args: LuaThread.ArgStack): Int  { args.lua.push(self.position); return 1 }
+	private fun xPosition(args: LuaThread.ArgStack): Int  { args.lua.push(self.xPosition); return 1 }
+	private fun yPosition(args: LuaThread.ArgStack): Int  { args.lua.push(self.yPosition); return 1 }
+	private fun velocity(args: LuaThread.ArgStack): Int  { args.lua.push(self.velocity); return 1 }
+	private fun xVelocity(args: LuaThread.ArgStack): Int  { args.lua.push(self.xVelocity); return 1 }
+	private fun yVelocity(args: LuaThread.ArgStack): Int  { args.lua.push(self.yVelocity); return 1 }
+	private fun rotation(args: LuaThread.ArgStack): Int  {  args.lua.push(self.rotation); return 1 }
+	private fun isColliding(args: LuaThread.ArgStack): Int  { args.lua.push(self.isColliding); return 1 }
+	private fun isNullColliding(args: LuaThread.ArgStack): Int  { args.lua.push(self.isCollidingWithNull); return 1 }
+	private fun isCollisionStuck(args: LuaThread.ArgStack): Int  { args.lua.push(self.isCollisionStuck); return 1 }
+	private fun stickingDirection(args: LuaThread.ArgStack): Int  { args.lua.push(self.stickingDirection); return 1 }
+	private fun liquidPercentage(args: LuaThread.ArgStack): Int  { args.lua.push(self.liquidPercentage); return 1 }
+	private fun liquidId(args: LuaThread.ArgStack): Int  { args.lua.push(self.liquid?.id?.toLong() ?: 0L); return 1 }
+	private fun liquidName(args: LuaThread.ArgStack): Int  { args.lua.push(self.liquid?.key); return 1 }
+	private fun onGround(args: LuaThread.ArgStack): Int  { args.lua.push(self.isOnGround); return 1 }
+	private fun zeroG(args: LuaThread.ArgStack): Int  { args.lua.push(self.isZeroGravity); return 1 }
+
+	private fun atWorldLimit(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.isAtWorldLimit(args.nextBoolean()))
+		return 1
+	}
+
+	private fun setAnchorState(args: LuaThread.ArgStack): Int {
+		self.anchorNetworkState = AnchorNetworkState(args.nextInt(), args.nextInt())
+		return 0
+	}
+
+	private fun resetAnchorState(args: LuaThread.ArgStack): Int {
+		self.anchorNetworkState = null
+		return 0
+	}
+
+	private fun anchorState(args: LuaThread.ArgStack): Int {
+		val anchorState = self.anchorNetworkState
+
+		if (anchorState != null) {
+			args.lua.push(anchorState.entityID.toLong())
+			args.lua.push(anchorState.positionIndex.toLong())
+			return 2
+		} else {
+			return 0
+		}
+	}
+
+	private fun setPosition(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.position = args.nextVector2d()
+		return 0
+	}
+
+	private fun translate(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.position += args.nextVector2d()
+		return 0
+	}
+
+	private fun setXPosition(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.xPosition = args.nextDouble()
+		return 0
+	}
+
+	private fun setYPosition(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.yPosition = args.nextDouble()
+		return 0
+	}
+
+	private fun setVelocity(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.velocity = args.nextVector2d()
+		return 0
+	}
+
+	private fun setXVelocity(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.xVelocity = args.nextDouble()
+		return 0
+	}
+
+	private fun setYVelocity(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.yVelocity = args.nextDouble()
+		return 0
+	}
+
+	private fun addMomentum(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+
+		if (self.mass != 0.0) // let's not collapse into black hole
+			self.velocity += args.nextVector2d() / self.mass
+
+		return 0
+	}
+
+	private fun setRotation(args: LuaThread.ArgStack): Int {
+		resetPathMove = true
+		self.rotation = args.nextDouble()
+		return 0
+	}
+
+	private fun baseParameters(args: LuaThread.ArgStack): Int { args.lua.push(Starbound.gson.toJsonTree(self.actorMovementParameters)); return 1 }
+	private fun walking(args: LuaThread.ArgStack): Int { args.lua.push(self.isWalking); return 1 }
+	private fun running(args: LuaThread.ArgStack): Int { args.lua.push(self.isRunning); return 1 }
+	private fun movingDirection(args: LuaThread.ArgStack): Int { args.lua.push(self.movingDirection.numericalValue); return 1 }
+	private fun facingDirection(args: LuaThread.ArgStack): Int { args.lua.push(self.facingDirection.numericalValue); return 1 }
+	private fun crouching(args: LuaThread.ArgStack): Int { args.lua.push(self.isCrouching); return 1 }
+	private fun flying(args: LuaThread.ArgStack): Int { args.lua.push(self.isFlying); return 1 }
+	private fun falling(args: LuaThread.ArgStack): Int { args.lua.push(self.isFalling); return 1 }
+	private fun canJump(args: LuaThread.ArgStack): Int { args.lua.push(self.canJump); return 1 }
+	private fun jumping(args: LuaThread.ArgStack): Int { args.lua.push(self.isJumping); return 1 }
+	private fun groundMovement(args: LuaThread.ArgStack): Int { args.lua.push(self.isGroundMovement); return 1 }
+	private fun liquidMovement(args: LuaThread.ArgStack): Int { args.lua.push(self.isLiquidMovement); return 1 }
+
+	// controls, stored locally, reset automatically or are persistent
+	private fun controlRotation(args: LuaThread.ArgStack): Int {
+		controlRotationRate += args.nextDouble()
+		return 0
+	}
+
+	private fun controlAcceleration(args: LuaThread.ArgStack): Int {
+		controlAcceleration += args.nextVector2d()
+		return 0
+	}
+
+	private fun controlForce(args: LuaThread.ArgStack): Int {
+		controlForce += args.nextVector2d()
+		return 0
+	}
+
+	private fun controlApproachVelocity(args: LuaThread.ArgStack): Int {
+		controlApproachVelocity = ActorMovementController.ApproachVelocityCommand(args.nextVector2d(), args.nextDouble())
+		return 0
+	}
+
+	private fun controlApproachVelocityAlongAngle(args: LuaThread.ArgStack): Int {
+		controlApproachVelocityAlongAngle = ActorMovementController.ApproachVelocityAngleCommand(args.nextDouble(), args.nextDouble(), args.nextDouble(), args.nextBoolean())
+		return 0
+	}
+
+	private fun controlApproachXVelocity(args: LuaThread.ArgStack): Int {
+		controlApproachVelocityAlongAngle = ActorMovementController.ApproachVelocityAngleCommand(0.0, args.nextDouble(), args.nextDouble(), false)
+		return 0
+	}
+
+	private fun controlApproachYVelocity(args: LuaThread.ArgStack): Int {
+		controlApproachVelocityAlongAngle = ActorMovementController.ApproachVelocityAngleCommand(PI / 2.0, args.nextDouble(), args.nextDouble(), false)
+		return 0
+	}
+
+	private fun controlParameters(args: LuaThread.ArgStack): Int {
+		controlParameters = controlParameters.merge(Starbound.gson.fromJsonFast(args.nextJson(), ActorMovementParameters::class.java))
+		return 0
+	}
+
+	private fun controlModifiers(args: LuaThread.ArgStack): Int {
+		controlModifiers = controlModifiers.merge(Starbound.gson.fromJsonFast(args.nextJson(), ActorMovementModifiers::class.java))
+		return 0
+	}
+
+	private fun controlMove(args: LuaThread.ArgStack): Int {
+		// why?
+		val new = Direction.valueOf(args.nextDouble())
+		val shouldRun = args.nextOptionalBoolean()
+
+		if (new != null) {
+			controlMove = new
+			controlShouldRun = shouldRun ?: false
 		}
 
-		callbacks["localBoundBox"] = luaFunction {
-			returnBuffer.setTo(from(self.computeLocalCollisionAABB()))
-		}
+		return 0
+	}
 
-		callbacks["boundBox"] = luaFunction {
-			returnBuffer.setTo(from(self.computeLocalCollisionAABB()))
-		}
+	private fun controlFace(args: LuaThread.ArgStack): Int {
+		// why?
+		val new = Direction.valueOf(args.nextDouble())
 
-		callbacks["collisionBoundBox"] = luaFunction {
-			returnBuffer.setTo(from(self.computeGlobalCollisionAABB()))
-		}
+		if (new != null)
+			controlFace = new
 
-		callbacks["collisionPoly"] = luaFunction {
-			returnBuffer.setTo(from(self.movementParameters.collisionPoly?.map({ it }, { it.firstOrNull() }) ?: Poly.EMPTY))
-		}
+		return 0
+	}
 
-		callbacks["collisionPolies"] = luaFunction {
-			returnBuffer.setTo(tableFrom((self.movementParameters.collisionPoly?.map({ listOf(it) }, { it }) ?: listOf(Poly.EMPTY)).map { from(it) }))
-		}
+	private fun controlDown(args: LuaThread.ArgStack): Int { controlDown = true; return 0 }
+	private fun controlCrouch(args: LuaThread.ArgStack): Int { controlCrouch = true; return 0 }
+	private fun controlHoldJump(args: LuaThread.ArgStack): Int { controlHoldJump = true; return 0 }
+	private fun controlJump(args: LuaThread.ArgStack): Int { controlJump = args.nextBoolean(); return 0 }
+	private fun controlFly(args: LuaThread.ArgStack): Int { controlFly = args.nextVector2d(); return 0 }
 
-		callbacks["collisionBody"] = luaFunction {
-			returnBuffer.setTo(from(self.computeGlobalHitboxes().firstOrNull() ?: Poly.EMPTY))
-		}
+	private fun controlPathMove(args: LuaThread.ArgStack): Int {
+		val position = args.nextVector2d()
 
-		callbacks["collisionBodies"] = luaFunction {
-			returnBuffer.setTo(tableFrom(self.computeGlobalHitboxes().map { from(it) }))
-		}
+		if (pathMoveResult?.first == position) {
+			val pathMoveResult = this.pathMoveResult!!
+			this.pathMoveResult = null
+			args.lua.push(pathMoveResult.second)
+		} else {
+			pathMoveResult = null
 
-		callbacks["position"] = luaFunction { returnBuffer.setTo(tableOf(self.xPosition, self.yPosition)) }
-		callbacks["xPosition"] = luaFunction { returnBuffer.setTo(self.xPosition) }
-		callbacks["yPosition"] = luaFunction { returnBuffer.setTo(self.yPosition) }
-		callbacks["velocity"] = luaFunction { returnBuffer.setTo(tableOf(self.xVelocity, self.yVelocity)) }
-		callbacks["xVelocity"] = luaFunction { returnBuffer.setTo(self.xVelocity) }
-		callbacks["yVelocity"] = luaFunction { returnBuffer.setTo(self.yVelocity) }
-		callbacks["rotation"] = luaFunction {  returnBuffer.setTo(self.rotation) }
-		callbacks["isColliding"] = luaFunction { returnBuffer.setTo(self.isColliding) }
-		callbacks["isNullColliding"] = luaFunction { returnBuffer.setTo(self.isCollidingWithNull) }
-		callbacks["isCollisionStuck"] = luaFunction { returnBuffer.setTo(self.isCollisionStuck) }
-		callbacks["stickingDirection"] = luaFunction { returnBuffer.setTo(self.stickingDirection) }
-		callbacks["liquidPercentage"] = luaFunction { returnBuffer.setTo(self.liquidPercentage) }
-		callbacks["liquidId"] = luaFunction { returnBuffer.setTo(self.liquid?.id ?: 0) }
-		callbacks["liquidName"] = luaFunction { returnBuffer.setTo(self.liquid?.key.toByteString()) }
-		callbacks["onGround"] = luaFunction { returnBuffer.setTo(self.isOnGround) }
-		callbacks["zeroG"] = luaFunction { returnBuffer.setTo(self.isZeroGravity) }
+			val run = args.nextOptionalBoolean() == true
+			val parameters = args.nextOptionalJson()
 
-		callbacks["atWorldLimit"] = luaFunction { bottomOnly: Boolean ->
-			returnBuffer.setTo(self.isAtWorldLimit(bottomOnly))
-		}
+			val result = self.pathMove(position, run, Starbound.gson.fromJsonFast(parameters ?: JsonNull.INSTANCE))
 
-		callbacks["setAnchorState"] = luaFunction { anchor: Number, index: Number ->
-			self.anchorNetworkState = AnchorNetworkState(anchor.toInt(), index.toInt())
-		}
-
-		callbacks["resetAnchorState"] = luaFunction {
-			self.anchorNetworkState = null
-		}
-
-		callbacks["anchorState"] = luaFunction {
-			val anchorState = self.anchorNetworkState
-
-			if (anchorState != null) {
-				returnBuffer.setTo(anchorState.entityID, anchorState.positionIndex)
+			if (result == null) {
+				controlPathMove = position to false
 			}
+
+			args.lua.push(result?.second)
 		}
 
-		callbacks["setPosition"] = luaFunction { value: Table ->
-			resetPathMove = true
-			self.position = toVector2d(value)
-		}
+		return 1
+	}
 
-		callbacks["setXPosition"] = luaFunction { value: Number ->
-			resetPathMove = true
-			self.xPosition = value.toDouble()
-		}
+	private fun pathfinding(args: LuaThread.ArgStack): Int {
+		args.lua.push(self.pathController.isPathfinding)
+		return 1
+	}
 
-		callbacks["setYPosition"] = luaFunction { value: Number ->
-			resetPathMove = true
-			self.yPosition = value.toDouble()
-		}
+	private fun autoClearControls(args: LuaThread.ArgStack): Int {
+		args.lua.push(autoClearControls)
+		return 1
+	}
 
-		callbacks["translate"] = luaFunction { value: Table ->
-			resetPathMove = true
-			self.position += toVector2d(value)
-		}
+	private fun setAutoClearControls(args: LuaThread.ArgStack): Int {
+		autoClearControls = args.nextBoolean()
+		return 0
+	}
 
-		callbacks["setVelocity"] = luaFunction { value: Table ->
-			resetPathMove = true
-			self.velocity = toVector2d(value)
-		}
+	private fun clearControls(args: LuaThread.ArgStack): Int {
+		clearControls()
+		return 0
+	}
 
-		callbacks["setXVelocity"] = luaFunction { value: Number ->
-			resetPathMove = true
-			self.xVelocity = value.toDouble()
-		}
+	fun init(lua: LuaThread) {
+		lua.pushTable()
+		lua.dup()
+		lua.storeGlobal("mcontroller")
 
-		callbacks["setYVelocity"] = luaFunction { value: Number ->
-			resetPathMove = true
-			self.yVelocity = value.toDouble()
-		}
+		lua.setTableValue("mass", ::mass)
+		lua.setTableValue("localBoundBox", ::localBoundBox)
+		lua.setTableValue("boundBox", ::boundBox)
+		lua.setTableValue("collisionBoundBox", ::collisionBoundBox)
+		lua.setTableValue("collisionPoly", ::collisionPoly)
+		lua.setTableValue("collisionPolies", ::collisionPolies)
+		lua.setTableValue("collisionBody", ::collisionBody)
+		lua.setTableValue("collisionBodies", ::collisionBodies)
+		lua.setTableValue("position", ::position)
+		lua.setTableValue("xPosition", ::xPosition)
+		lua.setTableValue("yPosition", ::yPosition)
+		lua.setTableValue("velocity", ::velocity)
+		lua.setTableValue("xVelocity", ::xVelocity)
+		lua.setTableValue("yVelocity", ::yVelocity)
+		lua.setTableValue("rotation", ::rotation)
+		lua.setTableValue("isColliding", ::isColliding)
+		lua.setTableValue("isNullColliding", ::isNullColliding)
+		lua.setTableValue("isCollisionStuck", ::isCollisionStuck)
+		lua.setTableValue("stickingDirection", ::stickingDirection)
+		lua.setTableValue("liquidPercentage", ::liquidPercentage)
+		lua.setTableValue("liquidId", ::liquidId)
+		lua.setTableValue("liquidName", ::liquidName)
+		lua.setTableValue("onGround", ::onGround)
+		lua.setTableValue("zeroG", ::zeroG)
+		lua.setTableValue("atWorldLimit", ::atWorldLimit)
+		lua.setTableValue("setAnchorState", ::setAnchorState)
+		lua.setTableValue("resetAnchorState", ::resetAnchorState)
+		lua.setTableValue("anchorState", ::anchorState)
+		lua.setTableValue("setPosition", ::setPosition)
+		lua.setTableValue("setXPosition", ::setXPosition)
+		lua.setTableValue("setYPosition", ::setYPosition)
+		lua.setTableValue("translate", ::translate)
+		lua.setTableValue("setVelocity", ::setVelocity)
+		lua.setTableValue("setXVelocity", ::setXVelocity)
+		lua.setTableValue("setYVelocity", ::setYVelocity)
+		lua.setTableValue("addMomentum", ::addMomentum)
+		lua.setTableValue("setRotation", ::setRotation)
+		lua.setTableValue("baseParameters", ::baseParameters)
+		lua.setTableValue("walking", ::walking)
+		lua.setTableValue("running", ::running)
+		lua.setTableValue("movingDirection", ::movingDirection)
+		lua.setTableValue("facingDirection", ::facingDirection)
+		lua.setTableValue("crouching", ::crouching)
+		lua.setTableValue("flying", ::flying)
+		lua.setTableValue("falling", ::falling)
+		lua.setTableValue("canJump", ::canJump)
+		lua.setTableValue("jumping", ::jumping)
+		lua.setTableValue("groundMovement", ::groundMovement)
+		lua.setTableValue("liquidMovement", ::liquidMovement)
+		lua.setTableValue("controlRotation", ::controlRotation)
+		lua.setTableValue("controlAcceleration", ::controlAcceleration)
+		lua.setTableValue("controlForce", ::controlForce)
+		lua.setTableValue("controlApproachVelocity", ::controlApproachVelocity)
+		lua.setTableValue("controlApproachVelocityAlongAngle", ::controlApproachVelocityAlongAngle)
+		lua.setTableValue("controlApproachXVelocity", ::controlApproachXVelocity)
+		lua.setTableValue("controlApproachYVelocity", ::controlApproachYVelocity)
+		lua.setTableValue("controlParameters", ::controlParameters)
+		lua.setTableValue("controlModifiers", ::controlModifiers)
+		lua.setTableValue("controlMove", ::controlMove)
+		lua.setTableValue("controlFace", ::controlFace)
+		lua.setTableValue("controlDown", ::controlDown)
+		lua.setTableValue("controlCrouch", ::controlCrouch)
+		lua.setTableValue("controlHoldJump", ::controlHoldJump)
+		lua.setTableValue("controlJump", ::controlJump)
+		lua.setTableValue("controlFly", ::controlFly)
+		lua.setTableValue("controlPathMove", ::controlPathMove)
+		lua.setTableValue("pathfinding", ::pathfinding)
+		lua.setTableValue("autoClearControls", ::autoClearControls)
+		lua.setTableValue("setAutoClearControls", ::setAutoClearControls)
+		lua.setTableValue("clearControls", ::clearControls)
 
-		callbacks["addMomentum"] = luaFunction { value: Table ->
-			resetPathMove = true
-			if (self.mass != 0.0) // let's not collapse into black hole
-				self.velocity += toVector2d(value) / self.mass
-		}
-
-		callbacks["setRotation"] = luaFunction { value: Number ->
-			resetPathMove = true
-			self.rotation = value.toDouble()
-		}
-
-		callbacks["baseParameters"] = luaFunction { returnBuffer.setTo(from(Starbound.gson.toJsonTree(self.actorMovementParameters))) }
-		callbacks["walking"] = luaFunction { returnBuffer.setTo(self.isWalking) }
-		callbacks["running"] = luaFunction { returnBuffer.setTo(self.isRunning) }
-		callbacks["movingDirection"] = luaFunction { returnBuffer.setTo(self.movingDirection.numericalValue) }
-		callbacks["facingDirection"] = luaFunction { returnBuffer.setTo(self.facingDirection.numericalValue) }
-		callbacks["crouching"] = luaFunction { returnBuffer.setTo(self.isCrouching) }
-		callbacks["flying"] = luaFunction { returnBuffer.setTo(self.isFlying) }
-		callbacks["falling"] = luaFunction { returnBuffer.setTo(self.isFalling) }
-		callbacks["canJump"] = luaFunction { returnBuffer.setTo(self.canJump) }
-		callbacks["jumping"] = luaFunction { returnBuffer.setTo(self.isJumping) }
-		callbacks["groundMovement"] = luaFunction { returnBuffer.setTo(self.isGroundMovement) }
-		callbacks["liquidMovement"] = luaFunction { returnBuffer.setTo(self.isLiquidMovement) }
-
-		// controls, stored locally, reset automatically or are persistent
-		callbacks["controlRotation"] = luaFunction { value: Number ->
-			controlRotationRate += value.toDouble()
-		}
-
-		callbacks["controlAcceleration"] = luaFunction { value: Table ->
-			controlAcceleration += toVector2d(value)
-		}
-
-		callbacks["controlForce"] = luaFunction { value: Table ->
-			controlForce += toVector2d(value)
-		}
-
-		callbacks["controlApproachVelocity"] = luaFunction { value: Table, rate: Number ->
-			controlApproachVelocity = ActorMovementController.ApproachVelocityCommand(toVector2d(value), rate.toDouble())
-		}
-
-		callbacks["controlApproachVelocityAlongAngle"] = luaFunction { angle: Number, targetVelocity: Number, maxControlForce: Number, positiveOnly: Boolean ->
-			controlApproachVelocityAlongAngle = ActorMovementController.ApproachVelocityAngleCommand(angle.toDouble(), targetVelocity.toDouble(), maxControlForce.toDouble(), positiveOnly)
-		}
-
-		callbacks["controlApproachXVelocity"] = luaFunction { targetVelocity: Number, maxControlForce: Number ->
-			controlApproachVelocityAlongAngle = ActorMovementController.ApproachVelocityAngleCommand(0.0, targetVelocity.toDouble(), maxControlForce.toDouble(), false)
-		}
-
-		callbacks["controlApproachYVelocity"] = luaFunction { targetVelocity: Number, maxControlForce: Number ->
-			controlApproachVelocityAlongAngle = ActorMovementController.ApproachVelocityAngleCommand(PI / 2.0, targetVelocity.toDouble(), maxControlForce.toDouble(), false)
-		}
-
-		callbacks["controlParameters"] = luaFunction { data: Table ->
-			controlParameters = controlParameters.merge(Starbound.gson.fromJsonFast(data.toJson(true), ActorMovementParameters::class.java))
-		}
-
-		callbacks["controlModifiers"] = luaFunction { data: Table ->
-			controlModifiers = controlModifiers.merge(Starbound.gson.fromJsonFast(data.toJson(true), ActorMovementModifiers::class.java))
-		}
-
-		callbacks["controlMove"] = luaFunction { direction: Number, shouldRun: Boolean? ->
-			// why?
-			val new = Direction.valueOf(direction)
-
-			if (new != null) {
-				controlMove = new
-				controlShouldRun = shouldRun ?: false
-			}
-		}
-
-		callbacks["controlFace"] = luaFunction { direction: Number ->
-			// why?
-			val new = Direction.valueOf(direction)
-
-			if (new != null)
-				controlFace = new
-		}
-
-		callbacks["controlDown"] = luaFunction { controlDown = true }
-		callbacks["controlCrouch"] = luaFunction { controlCrouch = true }
-		callbacks["controlJump"] = luaFunction { should: Boolean -> controlJump = should }
-		callbacks["controlHoldJump"] = luaFunction { controlHoldJump = true }
-		callbacks["controlFly"] = luaFunction { value: Table -> controlFly = toVector2d(value) }
-
-		callbacks["controlPathMove"] = luaFunction { position: Table, run: Boolean?, parameters: Table? ->
-			if (pathMoveResult?.first == toVector2d(position)) {
-				val pathMoveResult = pathMoveResult!!
-				this@MovementControllerBindings.pathMoveResult = null
-				returnBuffer.setTo(pathMoveResult.second)
-			} else {
-				pathMoveResult = null
-				val result = self.pathMove(toVector2d(position), run == true, Starbound.gson.fromJsonFast(toJsonFromLua(parameters)))
-
-				if (result == null) {
-					controlPathMove = toVector2d(position) to (run == true)
-				}
-
-				returnBuffer.setTo(result?.second)
-			}
-		}
-
-		callbacks["pathfinding"] = luaFunction {
-			returnBuffer.setTo(self.pathController.isPathfinding)
-		}
-
-		callbacks["autoClearControls"] = luaFunction {
-			returnBuffer.setTo(autoClearControls)
-		}
-
-		callbacks["setAutoClearControls"] = luaFunction { should: Boolean ->
-			autoClearControls = should
-		}
-
-		callbacks["clearControls"] = luaFunction { clearControls() }
+		lua.pop()
 	}
 
 	private var autoClearControls = true

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/NPCBindings.kt

@@ -1,222 +1,364 @@
 package ru.dbotthepony.kstarbound.lua.bindings
 
-import org.classdump.luna.ByteString
-import org.classdump.luna.Table
+import com.google.gson.JsonNull
+import it.unimi.dsi.fastutil.objects.Object2ObjectArrayMap
 import ru.dbotthepony.kstarbound.Registries
 import ru.dbotthepony.kstarbound.Starbound
 import ru.dbotthepony.kstarbound.defs.EntityDamageTeam
 import ru.dbotthepony.kstarbound.defs.item.ItemDescriptor
-import ru.dbotthepony.kstarbound.defs.quest.QuestArcDescriptor
 import ru.dbotthepony.kstarbound.fromJsonFast
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.get
-import ru.dbotthepony.kstarbound.lua.iterator
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.tableOf
-import ru.dbotthepony.kstarbound.lua.toByteString
-import ru.dbotthepony.kstarbound.lua.toJsonFromLua
-import ru.dbotthepony.kstarbound.lua.toVector2d
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.LuaType
+import ru.dbotthepony.kstarbound.lua.nextVector2d
+import ru.dbotthepony.kstarbound.lua.push
 import ru.dbotthepony.kstarbound.util.SBPattern
 import ru.dbotthepony.kstarbound.util.sbIntern
 import ru.dbotthepony.kstarbound.util.valueOfOrNull
 import ru.dbotthepony.kstarbound.world.entities.AnchorNetworkState
 import ru.dbotthepony.kstarbound.world.entities.HumanoidActorEntity
+import ru.dbotthepony.kstarbound.world.entities.LoungeAnchorState
 import ru.dbotthepony.kstarbound.world.entities.NPCEntity
 import ru.dbotthepony.kstarbound.world.entities.api.LoungeableEntity
+import kotlin.collections.contains
+import kotlin.collections.indices
+import kotlin.collections.isNotEmpty
+import kotlin.collections.set
+import kotlin.collections.withIndex
 
-fun provideNPCBindings(self: NPCEntity, lua: LuaEnvironment) {
-	val callbacks = lua.newTable()
-	lua.globals["npc"] = callbacks
+private fun toAbsolutePosition(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.toAbsolutePosition(args.nextVector2d()))
+	return 1
+}
 
-	callbacks["toAbsolutePosition"] = luaFunction { pos: Table ->
-		returnBuffer.setTo(from(self.toAbsolutePosition(toVector2d(pos))))
+private fun species(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.species.key)
+	return 1
+}
+
+private fun gender(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.humanoidIdentity.gender.jsonName)
+	return 1
+}
+
+private fun humanoidIdentity(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(Starbound.gson.toJsonTree(self.variant.humanoidIdentity))
+	return 1
+}
+
+private fun npcType(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.typeName)
+	return 1
+}
+
+private fun seed(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.seed)
+	return 1
+}
+
+private fun level(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.variant.level)
+	return 1
+}
+
+private fun dropPools(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.pushTable(self.dropPools.size)
+
+	for ((i, entry) in self.dropPools.withIndex()) {
+		args.lua.setTableValue(i + 1L, entry.key.left())
 	}
 
-	callbacks["species"] = luaFunction { returnBuffer.setTo(self.variant.species.key.toByteString()) }
-	callbacks["gender"] = luaFunction { returnBuffer.setTo(self.variant.humanoidIdentity.gender.jsonName.toByteString()) }
-	callbacks["humanoidIdentity"] = luaFunction { returnBuffer.setTo(from(Starbound.gson.toJsonTree(self.variant.humanoidIdentity))) }
-	callbacks["npcType"] = luaFunction { returnBuffer.setTo(self.variant.typeName.toByteString()) }
-	callbacks["seed"] = luaFunction { returnBuffer.setTo(self.variant.seed) }
-	callbacks["level"] = luaFunction { returnBuffer.setTo(self.variant.level) }
-	callbacks["dropPools"] = luaFunction { returnBuffer.setTo(tableOf(*self.dropPools.map { it.key.left().toByteString() }.toTypedArray())) }
+	return 1
+}
 
-	callbacks["setDropPools"] = luaFunction { dropPools: Table? ->
-		self.dropPools.clear()
+private fun setDropPools(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.dropPools.clear()
 
-		if (dropPools != null) {
-			for ((_, pool) in dropPools) {
-				self.dropPools.add(Registries.treasurePools.ref(pool.toString()))
-			}
+	if (args.hasNext) {
+		val values = args.readTableValues { Registries.treasurePools.ref(getString(it) ?: throw IllegalArgumentException("Drop pools table contains non-string values")) }
+		self.dropPools.addAll(values)
+	}
+
+	return 0
+}
+
+private fun energy(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.energy)
+	return 1
+}
+
+private fun maxEnergy(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.maxEnergy)
+	return 1
+}
+
+private fun say(self: NPCEntity, hasPortrait: Boolean, args: LuaThread.ArgStack): Int {
+	val line = args.nextString()
+	val portrait = if (hasPortrait) args.nextString() else ""
+	val tags = Object2ObjectArrayMap<String, String>()
+	val tagsType = args.peek()
+
+	if (tagsType == LuaType.TABLE) {
+		val pairs = args.readTable(
+			keyVisitor = { getString(it) ?: throw IllegalArgumentException("Tag replacement table contains non-strings as keys") },
+			valueVisitor = { getString(it) ?: throw IllegalArgumentException("Tag replacement table contains non-strings as keys") },
+		)
+
+		for ((k, v) in pairs) {
+			tags[k] = v
 		}
+	} else if (!tagsType.isNothing) {
+		throw IllegalArgumentException("bad argument #2 to object.say: table expected, got $tagsType")
+	} else {
+		args.skip()
 	}
 
-	// lol why
-	callbacks["energy"] = luaFunction { returnBuffer.setTo(self.energy) }
-	callbacks["maxEnergy"] = luaFunction { returnBuffer.setTo(self.maxEnergy) }
+	val sayConfig = args.nextOptionalJson() ?: JsonNull.INSTANCE
 
-	callbacks["say"] = luaFunction { line: ByteString, tags: Table?, config: Any? ->
-		val actualLine = if (tags != null) {
-			SBPattern.of(line.decode()).resolveOrSkip({ tags[it]?.toString() })
+	if (line.isBlank()) {
+		args.lua.push(false)
+	} else if (tags.isEmpty()) {
+		self.addChatMessage(line, sayConfig, portrait = portrait)
+		args.lua.push(true)
+	} else {
+		self.addChatMessage(SBPattern.of(line).resolveOrSkip(tags::get), sayConfig, portrait = portrait)
+		args.lua.push(true)
+	}
+
+	return 1
+}
+
+private fun emote(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.addEmote(args.nextString())
+	return 0
+}
+
+private fun dance(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.setDance(args.nextString())
+	return 0
+}
+
+private fun setInteractive(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.isInteractive = args.nextBoolean()
+	return 0
+}
+
+private fun setLounging(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	val loungeable = args.nextInt()
+	val anchorIndex = args.nextOptionalInt() ?: 0
+
+	val entity = self.world.entities[loungeable] as? LoungeableEntity
+
+	if (entity == null || anchorIndex !in entity.anchors.indices || entity.entitiesLoungingIn(anchorIndex).isNotEmpty()) {
+		args.lua.push(false)
+	} else {
+		self.movement.anchorNetworkState = AnchorNetworkState(loungeable, anchorIndex)
+		args.lua.push(true)
+	}
+
+	return 1
+}
+
+private fun resetLounging(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.movement.anchorNetworkState = null
+	return 0
+}
+
+private fun isLounging(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.movement.anchorState is LoungeAnchorState)
+	return 1
+}
+
+private fun loungingIn(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.movement.anchorNetworkState?.entityID?.toLong())
+	return 1
+}
+
+private fun setItemSlot(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	val slot = args.nextString()
+	val descriptor = ItemDescriptor(args)
+	args.lua.push(self.setItem(slot, descriptor))
+	return 1
+}
+
+private fun getItemSlot(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	val slot = args.nextString()
+	val slotType = HumanoidActorEntity.ItemSlot.entries.valueOfOrNull(slot.lowercase())
+
+	if (slotType == null) {
+		if (slot in self.variant.items) {
+			self.variant.items[slot]!!.store(args.lua)
 		} else {
-			line.decode()
+			return 0
 		}
-
-		val isNotEmpty = actualLine.isNotEmpty()
-
-		if (isNotEmpty)
-			self.addChatMessage(actualLine, toJsonFromLua(config))
-
-		returnBuffer.setTo(isNotEmpty)
+	} else {
+		self.getItem(slotType).createDescriptor().store(args.lua)
 	}
 
-	callbacks["sayPortrait"] = luaFunction { line: ByteString, portrait: ByteString, tags: Table?, config: Any? ->
-		val actualLine = if (tags != null) {
-			SBPattern.of(line.decode()).resolveOrSkip({ tags[it]?.toString() })
-		} else {
-			line.decode()
-		}
+	return 1
+}
 
-		val isNotEmpty = actualLine.isNotEmpty()
+private fun disableWornArmor(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.disableWornArmor = args.nextBoolean()
+	return 0
+}
 
-		if (isNotEmpty)
-			self.addChatMessage(actualLine, toJsonFromLua(config), portrait.decode())
+private fun getDisableWornArmor(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.disableWornArmor)
+	return 1
+}
 
-		returnBuffer.setTo(isNotEmpty)
-	}
+private fun setShifting(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.isShifting = args.nextBoolean()
+	return 0
+}
 
-	callbacks["emote"] = luaFunction { emote: ByteString ->
-		self.addEmote(emote.decode())
-	}
+private fun isShifting(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.isShifting)
+	return 1
+}
 
-	callbacks["dance"] = luaFunction { dance: ByteString ->
-		self.setDance(dance.decode())
-	}
+private fun getDamageOnTouch(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.damageOnTouch)
+	return 1
+}
 
-	callbacks["setInteractive"] = luaFunction { isInteractive: Boolean ->
-		self.isInteractive = isInteractive
-	}
+private fun setDamageOnTouch(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.damageOnTouch = args.nextBoolean()
+	return 0
+}
 
-	callbacks["setLounging"] = luaFunction { loungeable: Number, oAnchorIndex: Number? ->
-		val anchorIndex = oAnchorIndex?.toInt() ?: 0
-		val entity = self.world.entities[loungeable.toInt()] as? LoungeableEntity
+private fun aimPosition(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.aimPosition)
+	return 1
+}
 
-		if (entity == null || anchorIndex !in 0 until entity.anchors.size || entity.entitiesLoungingIn(anchorIndex).isNotEmpty()) {
-			returnBuffer.setTo(false)
-		} else {
-			self.movement.anchorNetworkState = AnchorNetworkState(loungeable.toInt(), anchorIndex)
-			returnBuffer.setTo(true)
-		}
-	}
+private fun setAimPosition(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.aimPosition = self.world.geometry.diff(args.nextVector2d(), self.position)
+	return 0
+}
 
-	callbacks["resetLounging"] = luaFunction {
-		self.movement.anchorNetworkState = null
-	}
+private fun getDeathParticleBurst(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.deathParticleBurst)
+	return 1
+}
 
-	callbacks["isLounging"] = luaFunction {
-		returnBuffer.setTo(self.movement.anchorNetworkState != null)
-	}
+private fun setDeathParticleBurst(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.deathParticleBurst = args.nextOptionalString()?.sbIntern()
+	return 0
+}
 
-	callbacks["loungingIn"] = luaFunction {
-		returnBuffer.setTo(self.movement.anchorNetworkState?.entityID)
-	}
+private fun getStatusText(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.statusText)
+	return 1
+}
 
-	callbacks["setOfferedQuests"] = luaFunction { values: Table? ->
-		self.offeredQuests.clear()
+private fun setStatusText(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.statusText = args.nextOptionalString()?.sbIntern()
+	return 0
+}
 
-		if (values != null) {
-			for ((_, quest) in values) {
-				self.offeredQuests.add(Starbound.gson.fromJsonFast(toJsonFromLua(quest), QuestArcDescriptor::class.java))
-			}
-		}
-	}
+private fun getDisplayNametag(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.displayNametag)
+	return 1
+}
 
-	callbacks["setTurnInQuests"] = luaFunction { values: Table? ->
-		self.turnInQuests.clear()
+private fun setDisplayNametag(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.displayNametag = args.nextBoolean()
+	return 0
+}
 
-		if (values != null) {
-			for ((_, value) in values) {
-				self.turnInQuests.add(value.toString())
-			}
-		}
-	}
+private fun getKeepAlive(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.keepAlive)
+	return 1
+}
 
-	callbacks["setItemSlot"] = luaFunction { slot: ByteString, descriptor: Any ->
-		returnBuffer.setTo(self.setItem(slot.decode(), ItemDescriptor(descriptor)))
-	}
+private fun setKeepAlive(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.keepAlive = args.nextBoolean()
+	return 0
+}
 
-	callbacks["getItemSlot"] = luaFunction { slot: ByteString ->
-		val decoded = slot.decode()
-		val slotType = HumanoidActorEntity.ItemSlot.entries.valueOfOrNull(decoded.lowercase())
+private fun getAggressive(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.isAggressive)
+	return 1
+}
 
-		if (slotType == null) {
-			if (decoded in self.variant.items) {
-				returnBuffer.setTo(self.variant.items[decoded]!!.toTable(this))
-			} else {
-				returnBuffer.setTo()
-			}
-		} else {
-			returnBuffer.setTo(self.getItem(slotType).toTable(this))
-		}
-	}
+private fun setAggressive(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.isAggressive = args.nextBoolean()
+	return 0
+}
 
-	callbacks["disableWornArmor"] = luaFunction { disable: Boolean ->
-		self.disableWornArmor = disable
-	}
+private fun setPersistent(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.isPersistent = args.nextBoolean()
+	return 0
+}
 
-	callbacks["beginPrimaryFire"] = luaFunction { self.beginPrimaryFire() }
-	callbacks["beginAltFire"] = luaFunction { self.beginSecondaryFire() }
-	callbacks["beginSecondaryFire"] = luaFunction { self.beginSecondaryFire() }
-	callbacks["endPrimaryFire"] = luaFunction { self.endPrimaryFire() }
-	callbacks["endAltFire"] = luaFunction { self.endSecondaryFire() }
-	callbacks["endSecondaryFire"] = luaFunction { self.endSecondaryFire() }
+private fun setDamageTeam(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.team.accept(Starbound.gson.fromJsonFast(args.nextJson(), EntityDamageTeam::class.java))
+	return 0
+}
 
-	callbacks["setShifting"] = luaFunction { value: Boolean ->
-		self.isShifting = value
-	}
+private fun setUniqueId(self: NPCEntity, args: LuaThread.ArgStack): Int {
+	self.uniqueID.accept(args.nextOptionalString()?.sbIntern())
+	return 0
+}
 
-	callbacks["setDamageOnTouch"] = luaFunction { value: Boolean ->
-		self.damageOnTouch = value
-	}
+fun provideNPCBindings(self: NPCEntity, lua: LuaThread) {
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("npc")
 
-	callbacks["aimPosition"] = luaFunction {
-		returnBuffer.setTo(from(self.aimPosition))
-	}
+	lua.pushBinding(self, "toAbsolutePosition", ::toAbsolutePosition)
+	lua.pushBinding(self, "species", ::species)
+	lua.pushBinding(self, "gender", ::gender)
+	lua.pushBinding(self, "humanoidIdentity", ::humanoidIdentity)
+	lua.pushBinding(self, "npcType", ::npcType)
+	lua.pushBinding(self, "seed", ::seed)
+	lua.pushBinding(self, "level", ::level)
+	lua.pushBinding(self, "dropPools", ::dropPools)
+	lua.pushBinding(self, "setDropPools", ::setDropPools)
+	lua.pushBinding(self, "energy", ::energy)
+	lua.pushBinding(self, "maxEnergy", ::maxEnergy)
+	lua.pushBinding(self, false, "say", ::say)
+	lua.pushBinding(self, true, "sayPortrait", ::say)
+	lua.pushBinding(self, "emote", ::emote)
+	lua.pushBinding(self, "dance", ::dance)
+	lua.pushBinding(self, "setInteractive", ::setInteractive)
+	lua.pushBinding(self, "setLounging", ::setLounging)
+	lua.pushBinding(self, "resetLounging", ::resetLounging)
+	lua.pushBinding(self, "isLounging", ::isLounging)
+	lua.pushBinding(self, "loungingIn", ::loungingIn)
+	lua.pushBinding(self, NPCEntity::offeredQuests, "setOfferedQuests", ::setOfferedQuests)
+	lua.pushBinding(self, NPCEntity::turnInQuests, "setTurnInQuests", ::setTurnInQuests)
+	lua.pushBinding(self, "setItemSlot", ::setItemSlot)
+	lua.pushBinding(self, "getItemSlot", ::getItemSlot)
+	lua.pushBinding(self, "disableWornArmor", ::disableWornArmor)
+	lua.pushBinding(self, "getDisableWornArmor", ::getDisableWornArmor)
+	lua.pushBinding(self, "setShifting", ::setShifting)
+	lua.pushBinding(self, "isShifting", ::isShifting)
+	lua.pushBinding(self, "setDamageOnTouch", ::setDamageOnTouch)
+	lua.pushBinding(self, "getDamageOnTouch", ::getDamageOnTouch)
+	lua.pushBinding(self, "aimPosition", ::aimPosition)
+	lua.pushBinding(self, "setAimPosition", ::setAimPosition)
+	lua.pushBinding(self, "getDeathParticleBurst", ::getDeathParticleBurst)
+	lua.pushBinding(self, "setDeathParticleBurst", ::setDeathParticleBurst)
+	lua.pushBinding(self, "getStatusText", ::getStatusText)
+	lua.pushBinding(self, "setStatusText", ::setStatusText)
+	lua.pushBinding(self, "getDisplayNametag", ::getDisplayNametag)
+	lua.pushBinding(self, "setDisplayNametag", ::setDisplayNametag)
+	lua.pushBinding(self, "getKeepAlive", ::getKeepAlive)
+	lua.pushBinding(self, "setKeepAlive", ::setKeepAlive)
+	lua.pushBinding(self, "getAggressive", ::getAggressive)
+	lua.pushBinding(self, "setAggressive", ::setAggressive)
+	lua.pushBinding(self, "setPersistent", ::setPersistent)
+	lua.pushBinding(self, "setDamageTeam", ::setDamageTeam)
+	lua.pushBinding(self, "setUniqueId", ::setUniqueId)
 
-	callbacks["setAimPosition"] = luaFunction { pos: Table ->
-		self.aimPosition = self.world.geometry.diff(toVector2d(pos), self.position)
-	}
+	lua.pushBinding(self, "beginPrimaryFire", NPCEntity::beginPrimaryFire)
+	lua.pushBinding(self, "beginAltFire", NPCEntity::beginSecondaryFire)
+	lua.pushBinding(self, "beginSecondaryFire", NPCEntity::beginSecondaryFire)
+	lua.pushBinding(self, "endPrimaryFire", NPCEntity::endPrimaryFire)
+	lua.pushBinding(self, "endAltFire", NPCEntity::endSecondaryFire)
+	lua.pushBinding(self, "endSecondaryFire", NPCEntity::endSecondaryFire)
 
-	callbacks["setDeathParticleBurst"] = luaFunction { value: ByteString? ->
-		self.deathParticleBurst = value?.decode()?.sbIntern()
-	}
-
-	callbacks["setStatusText"] = luaFunction { value: ByteString? ->
-		self.statusText = value?.decode()?.sbIntern()
-	}
-
-	callbacks["setDisplayNametag"] = luaFunction { value: Boolean ->
-		self.displayNametag = value
-	}
-
-	callbacks["setPersistent"] = luaFunction { value: Boolean ->
-		self.isPersistent = value
-	}
-
-	callbacks["setKeepAlive"] = luaFunction { value: Boolean ->
-		self.keepAlive = value
-	}
-
-	callbacks["setAggressive"] = luaFunction { value: Boolean ->
-		self.isAggressive = value
-	}
-
-	callbacks["setDamageTeam"] = luaFunction { value: Table ->
-		self.team.accept(Starbound.gson.fromJsonFast(toJsonFromLua(value), EntityDamageTeam::class.java))
-	}
-
-	callbacks["setUniqueId"] = luaFunction { value: ByteString? ->
-		self.uniqueID.accept(value?.decode()?.sbIntern())
-	}
-}
+	lua.pop()
+}

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/StatusControllerBindings.kt

@@ -1,249 +1,397 @@
 package ru.dbotthepony.kstarbound.lua.bindings
 
-import com.google.gson.JsonObject
+import com.google.gson.JsonNull
 import com.google.gson.reflect.TypeToken
-import org.classdump.luna.ByteString
-import org.classdump.luna.LuaRuntimeException
-import org.classdump.luna.Table
-import ru.dbotthepony.kommons.gson.set
 import ru.dbotthepony.kstarbound.Registries
 import ru.dbotthepony.kstarbound.Starbound
 import ru.dbotthepony.kstarbound.defs.DamageData
 import ru.dbotthepony.kstarbound.defs.EphemeralStatusEffect
 import ru.dbotthepony.kstarbound.defs.actor.PersistentStatusEffect
 import ru.dbotthepony.kstarbound.fromJsonFast
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.iterator
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.tableOf
-import ru.dbotthepony.kstarbound.lua.toByteString
-import ru.dbotthepony.kstarbound.lua.toJsonFromLua
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.push
 import ru.dbotthepony.kstarbound.util.sbIntern
 import ru.dbotthepony.kstarbound.world.entities.StatusController
 
 private object PersistentStatusEffectToken : TypeToken<PersistentStatusEffect>()
 private object CPersistentStatusEffectToken : TypeToken<ArrayList<PersistentStatusEffect>>()
 
-fun provideStatusControllerBindings(self: StatusController, lua: LuaEnvironment) {
-	val callbacks = lua.newTable()
-	lua.globals["status"] = callbacks
+private fun statusProperty(self: StatusController, args: LuaThread.ArgStack): Int {
+	val get = self.getProperty(args.nextString())
 
-	callbacks["statusProperty"] = luaFunction { key: ByteString, ifMissing: Any? ->
-		val get = self.getProperty(key.decode())
-
-		if (get == null) {
-			returnBuffer.setTo(ifMissing)
-		} else {
-			returnBuffer.setTo(from(get))
+	if (get == null) {
+		if (args.top == 1) {
+			args.lua.push()
+		} else if (args.top > 3) {
+			args.lua.dup(2)
 		}
+	} else {
+		args.lua.push(get)
 	}
 
-	callbacks["setStatusProperty"] = luaFunction { key: ByteString, value: Any? ->
-		self.setProperty(key.decode().sbIntern(), toJsonFromLua(value))
-	}
-
-	callbacks["stat"] = luaFunction { name: ByteString ->
-		returnBuffer.setTo(self.effectiveStats[name.decode()]?.effectiveModifiedValue ?: 0.0)
-	}
-
-	callbacks["statPositive"] = luaFunction { name: ByteString ->
-		returnBuffer.setTo(self.statPositive(name.decode()))
-	}
-
-	callbacks["resourceNames"] = luaFunction {
-		returnBuffer.setTo(tableOf(self.resources.keys.toTypedArray()))
-	}
-
-	callbacks["isResource"] = luaFunction { name: ByteString ->
-		returnBuffer.setTo(name.decode() in self.resources.keys)
-	}
-
-	callbacks["resource"] = luaFunction { name: ByteString ->
-		val resource = self.resources[name.decode()] ?: return@luaFunction returnBuffer.setTo(0.0)
-		returnBuffer.setTo(resource.value)
-	}
-
-	callbacks["resourcePositive"] = luaFunction { name: ByteString ->
-		val resource = self.resources[name.decode()] ?: return@luaFunction returnBuffer.setTo(false)
-		returnBuffer.setTo(resource.value > 0.0)
-	}
-
-	callbacks["setResource"] = luaFunction { name: ByteString, value: Number ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		resource.value = value.toDouble()
-	}
-
-	callbacks["modifyResource"] = luaFunction { name: ByteString, value: Number ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		resource.value += value.toDouble()
-	}
-
-	callbacks["giveResource"] = luaFunction { name: ByteString, value: Number ->
-		// while other functions throw an exception if resource does not exist
-		// this one returns 0
-		// Consistency is my first, second, and last name
-		val resource = self.resources[name.decode()] ?: return@luaFunction returnBuffer.setTo(0.0)
-		returnBuffer.setTo(resource.give(value.toDouble()))
-	}
-
-	callbacks["consumeResource"] = luaFunction { name: ByteString, value: Number ->
-		// while other functions throw an exception if resource does not exist
-		// this one returns 0
-		// Consistency is my first, second, and last name
-		val resource = self.resources[name.decode()] ?: return@luaFunction returnBuffer.setTo(false)
-		returnBuffer.setTo(resource.consume(value.toDouble()))
-	}
-
-	callbacks["overConsumeResource"] = luaFunction { name: ByteString, value: Number ->
-		// while other functions throw an exception if resource does not exist
-		// this one returns 0
-		// Consistency is my first, second, and last name
-		val resource = self.resources[name.decode()] ?: return@luaFunction returnBuffer.setTo(false)
-		returnBuffer.setTo(resource.consume(value.toDouble(), allowOverdraw = true))
-	}
-
-	callbacks["resourceLocked"] = luaFunction { name: ByteString ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		returnBuffer.setTo(resource.isLocked)
-	}
-
-	callbacks["setResourceLocked"] = luaFunction { name: ByteString, isLocked: Boolean ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		resource.isLocked = isLocked
-	}
-
-	callbacks["resetResource"] = luaFunction { name: ByteString, isLocked: Boolean ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		resource.reset()
-	}
-
-	callbacks["resetAllResources"] = luaFunction { name: ByteString, isLocked: Boolean ->
-		self.resetResources()
-	}
-
-	callbacks["resourceMax"] = luaFunction { name: ByteString ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		returnBuffer.setTo(resource.maxValue)
-	}
-
-	callbacks["resourcePercentage"] = luaFunction { name: ByteString ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		returnBuffer.setTo(resource.percentage)
-	}
-
-	callbacks["setResourcePercentage"] = luaFunction { name: ByteString, value: Number ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		resource.setAsPercentage(value.toDouble())
-	}
-
-	callbacks["modifyResourcePercentage"] = luaFunction { name: ByteString, value: Number ->
-		val resource = self.resources[name.decode()] ?: throw LuaRuntimeException("No such resource $name")
-		resource.modifyPercentage(value.toDouble())
-	}
-
-	callbacks["getPersistentEffects"] = luaFunction { category: ByteString ->
-		returnBuffer.setTo(tableOf(self.getPersistentEffects(category.decode()).map { it.map({ from(Starbound.gson.toJsonTree(it)) }, { it }) }))
-	}
-
-	callbacks["addPersistentEffect"] = luaFunction { category: ByteString, effect: Any ->
-		self.addPersistentEffect(category.decode().sbIntern(), Starbound.gson.fromJsonFast(toJsonFromLua(effect), PersistentStatusEffectToken))
-	}
-
-	callbacks["addPersistentEffects"] = luaFunction { category: ByteString, effect: Any ->
-		self.addPersistentEffects(category.decode().sbIntern(), Starbound.gson.fromJsonFast(toJsonFromLua(effect), CPersistentStatusEffectToken))
-	}
-
-	callbacks["setPersistentEffects"] = luaFunction { category: ByteString, effect: Any ->
-		self.setPersistentEffects(category.decode().sbIntern(), Starbound.gson.fromJsonFast(toJsonFromLua(effect), CPersistentStatusEffectToken))
-	}
-
-	callbacks["clearPersistentEffects"] = luaFunction { category: ByteString ->
-		self.removePersistentEffects(category.decode())
-	}
-
-	callbacks["clearAllPersistentEffects"] = luaFunction {
-		self.removeAllPersistentEffects()
-	}
-
-	callbacks["addEphemeralEffect"] = luaFunction { name: ByteString, duration: Number?, source: Number? ->
-		self.addEphemeralEffect(EphemeralStatusEffect(Registries.statusEffects.ref(name.decode().sbIntern()), duration?.toDouble()), source?.toInt())
-	}
-
-	callbacks["addEphemeralEffects"] = luaFunction { effects: Table, source: Number? ->
-		for ((_, effect) in effects) {
-			self.addEphemeralEffect(Starbound.gson.fromJsonFast(toJsonFromLua(effect), EphemeralStatusEffect::class.java), source?.toInt())
-		}
-	}
-
-	callbacks["removeEphemeralEffect"] = luaFunction { name: ByteString ->
-		self.removeEphemeralEffect(name.decode())
-	}
-
-	callbacks["clearEphemeralEffects"] = luaFunction {
-		self.removeEphemeralEffects()
-	}
-
-	callbacks["damageTakenSince"] = luaFunction { since: Number? ->
-		val (list, newSince) = self.recentDamageReceived(since?.toLong() ?: 0L)
-		returnBuffer.setTo(tableOf(*list.map { from(Starbound.gson.toJsonTree(it)) }.toTypedArray()), newSince)
-	}
-
-	callbacks["inflictedHitsSince"] = luaFunction { since: Number? ->
-		val (list, newSince) = self.recentHitsDealt(since?.toLong() ?: 0L)
-
-		returnBuffer.setTo(tableOf(*list.map { p ->
-			from(Starbound.gson.toJsonTree(p.second).also { it as JsonObject; it["targetEntityId"] = p.first })
-		}.toTypedArray()), newSince)
-	}
-
-	callbacks["inflictedDamageSince"] = luaFunction { since: Number? ->
-		val (list, newSince) = self.recentDamageDealt(since?.toLong() ?: 0L)
-		returnBuffer.setTo(tableOf(*list.map { from(Starbound.gson.toJsonTree(it)) }.toTypedArray()), newSince)
-	}
-
-	callbacks["activeUniqueStatusEffectSummary"] = luaFunction {
-		returnBuffer.setTo(tableOf(*self.activeUniqueStatusEffectSummary().map { tableOf(it.first.key, it.second) }.toTypedArray()))
-	}
-
-	callbacks["uniqueStatusEffectActive"] = luaFunction { name: ByteString ->
-		returnBuffer.setTo(self.uniqueStatusEffectActive(name.decode()))
-	}
-
-	callbacks["primaryDirectives"] = luaFunction {
-		returnBuffer.setTo(self.primaryDirectives.toByteString())
-	}
-
-	callbacks["setPrimaryDirectives"] = luaFunction { directives: ByteString? ->
-		self.primaryDirectives = directives?.decode()?.sbIntern() ?: ""
-	}
-
-	callbacks["applySelfDamageRequest"] = luaFunction { damage: Table ->
-		self.inflictSelfDamage(Starbound.gson.fromJsonFast(toJsonFromLua(damage), DamageData::class.java))
-	}
-
-	callbacks["appliesEnvironmentStatusEffects"] = luaFunction {
-		returnBuffer.setTo(self.appliesEnvironmentStatusEffects)
-	}
-
-	callbacks["appliesWeatherStatusEffects"] = luaFunction {
-		returnBuffer.setTo(self.appliesWeatherStatusEffects)
-	}
-
-	callbacks["minimumLiquidStatusEffectPercentage"] = luaFunction {
-		returnBuffer.setTo(self.minimumLiquidStatusEffectPercentage)
-	}
-
-	callbacks["setAppliesEnvironmentStatusEffects"] = luaFunction { should: Boolean ->
-		self.appliesEnvironmentStatusEffects = should
-	}
-
-	callbacks["setAppliesWeatherStatusEffects"] = luaFunction { should: Boolean ->
-		self.appliesWeatherStatusEffects = should
-	}
-
-	callbacks["setMinimumLiquidStatusEffectPercentage"] = luaFunction { value: Number ->
-		self.minimumLiquidStatusEffectPercentage = value.toDouble()
-	}
+	return 1
+}
+
+private fun setStatusProperty(self: StatusController, args: LuaThread.ArgStack): Int {
+	self.setProperty(args.nextString().sbIntern(), args.nextOptionalJson() ?: JsonNull.INSTANCE)
+	return 0
+}
+
+private fun stat(self: StatusController, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.effectiveStats[args.nextString()]?.effectiveModifiedValue ?: 0.0)
+	return 1
+}
+
+private fun statPositive(self: StatusController, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.statPositive(args.nextString()))
+	return 1
+}
+
+private fun resourceNames(self: StatusController, args: LuaThread.ArgStack): Int {
+	args.lua.pushTable(self.resources.size)
+
+	for ((i, value) in self.resources.keys.withIndex())
+		args.lua.setTableValue(i + 1, value)
+
+	return 1
+}
+
+private fun isResource(self: StatusController, args: LuaThread.ArgStack): Int {
+	args.lua.push(args.nextString() in self.resources)
+	return 1
+}
+
+private fun resource(self: StatusController, args: LuaThread.ArgStack): Int {
+	val resource = self.resources[args.nextString()] ?: return 0
+	args.lua.push(resource.value)
+	return 1
+}
+
+private fun resourcePositive(self: StatusController, args: LuaThread.ArgStack): Int {
+	val resource = self.resources[args.nextString()]
+
+	if (resource == null)
+		args.lua.push(false)
+	else
+		args.lua.push(resource.isPositive)
+
+	return 1
+}
+
+private fun setResource(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	resource.value = args.nextDouble()
+	return 0
+}
+
+private fun modifyResource(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	resource.value += args.nextDouble()
+	return 0
+}
+
+private fun giveResource(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name]
+	val amount = args.nextDouble()
+
+	if (resource == null) {
+		args.lua.push(0.0)
+	} else {
+		args.lua.push(resource.give(amount))
+	}
+
+	return 1
+}
+
+private fun consumeResource(self: StatusController, overdraw: Boolean, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name]
+	val amount = args.nextDouble()
+
+	if (resource == null) {
+		args.lua.push(false)
+	} else {
+		args.lua.push(resource.consume(amount, overdraw))
+	}
+
+	return 1
+}
+
+private fun resourceLocked(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	args.lua.push(resource.isLocked)
+	return 1
+}
+
+private fun setResourceLocked(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	resource.isLocked = args.nextBoolean()
+	return 0
+}
+
+private fun resetResource(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	resource.reset()
+	return 0
+}
+
+private fun resetAllResources(self: StatusController, args: LuaThread.ArgStack): Int {
+	self.resetResources()
+	return 0
+}
+
+private fun resourceMax(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	args.lua.push(resource.maxValue)
+	return 1
+}
+
+private fun resourcePercentage(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	args.lua.push(resource.percentage)
+	return 1
+}
+
+private fun setResourcePercentage(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	resource.setAsPercentage(args.nextDouble())
+	return 0
+}
+
+private fun modifyResourcePercentage(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val resource = self.resources[name] ?: throw NoSuchElementException("No such resource $name")
+	resource.modifyPercentage(args.nextDouble())
+	return 0
+}
+
+private fun getPersistentEffects(self: StatusController, args: LuaThread.ArgStack): Int {
+	val effects = self.getPersistentEffects(args.nextString())
+	args.lua.pushTable(effects.size)
+
+	for ((i, effect) in effects.withIndex()) {
+		args.lua.push(i + 1L)
+		effect.map({ args.lua.push(Starbound.gson.toJsonTree(it)) }, { args.lua.push(it) })
+		args.lua.setTableValue()
+	}
+
+	return 1
+}
+
+private fun addPersistentEffect(self: StatusController, args: LuaThread.ArgStack): Int {
+	val category = args.nextString().sbIntern()
+	val effect = Starbound.gson.fromJsonFast(args.nextJson(), PersistentStatusEffectToken)
+	self.addPersistentEffect(category, effect)
+	return 0
+}
+
+private fun addPersistentEffects(self: StatusController, args: LuaThread.ArgStack): Int {
+	val category = args.nextString().sbIntern()
+	val effects = Starbound.gson.fromJsonFast(args.nextJson(), CPersistentStatusEffectToken)
+	self.addPersistentEffects(category, effects)
+	return 0
+}
+
+private fun setPersistentEffects(self: StatusController, args: LuaThread.ArgStack): Int {
+	val category = args.nextString().sbIntern()
+	val effects = Starbound.gson.fromJsonFast(args.nextJson(), CPersistentStatusEffectToken)
+	self.setPersistentEffects(category, effects)
+	return 0
+}
+
+private fun clearPersistentEffects(self: StatusController, args: LuaThread.ArgStack): Int {
+	val category = args.nextString()
+	self.removePersistentEffects(category)
+	return 0
+}
+
+private fun clearAllPersistentEffects(self: StatusController, args: LuaThread.ArgStack): Int {
+	self.removeAllPersistentEffects()
+	return 0
+}
+
+private fun addEphemeralEffect(self: StatusController, args: LuaThread.ArgStack): Int {
+	val name = args.nextString()
+	val duration = args.nextOptionalDouble()
+	val sourceEntity = args.nextOptionalInt()
+
+	self.addEphemeralEffect(EphemeralStatusEffect(Registries.statusEffects.ref(name), duration), sourceEntity)
+	return 0
+}
+
+private fun addEphemeralEffects(self: StatusController, args: LuaThread.ArgStack): Int {
+	val effects = args.readTableValues { Starbound.gson.fromJsonFast(getJson() ?: throw IllegalArgumentException("invalid values in effects table"), EphemeralStatusEffect::class.java) }
+	val sourceEntity = args.nextOptionalInt()
+
+	for (effect in effects) {
+		self.addEphemeralEffect(effect, sourceEntity)
+	}
+
+	return 0
+}
+
+private fun removeEphemeralEffect(self: StatusController, args: LuaThread.ArgStack): Int {
+	self.removeEphemeralEffect(args.nextString())
+	return 0
+}
+
+private fun removeEphemeralEffects(self: StatusController, args: LuaThread.ArgStack): Int {
+	self.removeEphemeralEffects()
+	return 0
+}
+
+private fun damageTakenSince(self: StatusController, args: LuaThread.ArgStack): Int {
+	val since = args.nextOptionalLong() ?: 0L
+	val (list, newSince) = self.recentDamageReceived(since)
+
+	args.lua.pushTable(list.size)
+
+	for ((i, v) in list.withIndex()) {
+		args.lua.setTableValue(i + 1L, Starbound.gson.toJsonTree(v))
+	}
+
+	args.lua.push(newSince)
+	return 2
+}
+
+private fun inflictedHitsSince(self: StatusController, args: LuaThread.ArgStack): Int {
+	val since = args.nextOptionalLong() ?: 0L
+	val (list, newSince) = self.recentHitsDealt(since)
+
+	args.lua.pushTable(list.size)
+
+	for ((i, v) in list.withIndex()) {
+		val (target, data) = v
+
+		args.lua.push(i + 1L)
+
+		args.lua.push(Starbound.gson.toJsonTree(data))
+		args.lua.setTableValue("targetEntityId", target)
+
+		args.lua.setTableValue()
+	}
+
+	args.lua.push(newSince)
+	return 2
+}
+
+private fun inflictedDamageSince(self: StatusController, args: LuaThread.ArgStack): Int {
+	val since = args.nextOptionalLong() ?: 0L
+	val (list, newSince) = self.recentHitsDealt(since)
+
+	args.lua.pushTable(list.size)
+
+	for ((i, v) in list.withIndex()) {
+		args.lua.setTableValue(i + 1L, Starbound.gson.toJsonTree(v))
+	}
+
+	args.lua.push(newSince)
+	return 2
+}
+
+private fun activeUniqueStatusEffectSummary(self: StatusController, args: LuaThread.ArgStack): Int {
+	val effects = self.activeUniqueStatusEffectSummary()
+
+	args.lua.pushTable(effects.size)
+
+	for ((i, data) in effects.withIndex()) {
+		args.lua.push(i + 1L)
+		args.lua.pushTable(2)
+		args.lua.setTableValue(1L, data.first.key)
+		args.lua.setTableValue(2L, data.second)
+		args.lua.setTableValue()
+	}
+
+	return 1
+}
+
+private fun uniqueStatusEffectActive(self: StatusController, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.uniqueStatusEffectActive(args.nextString()))
+	return 1
+}
+
+private fun primaryDirectives(self: StatusController, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.primaryDirectives)
+	return 1
+}
+
+private fun setPrimaryDirectives(self: StatusController, args: LuaThread.ArgStack): Int {
+	self.primaryDirectives = args.nextOptionalString()?.sbIntern() ?: ""
+	return 0
+}
+
+private fun applySelfDamageRequest(self: StatusController, args: LuaThread.ArgStack): Int {
+	self.inflictSelfDamage(Starbound.gson.fromJsonFast(args.nextJson(), DamageData::class.java))
+	return 1
+}
+
+private fun appliesEnvironmentStatusEffects(self: StatusController, args: LuaThread.ArgStack): Int { args.lua.push(self.appliesEnvironmentStatusEffects); return 1 }
+private fun appliesWeatherStatusEffects(self: StatusController, args: LuaThread.ArgStack): Int { args.lua.push(self.appliesWeatherStatusEffects); return 1 }
+private fun minimumLiquidStatusEffectPercentage(self: StatusController, args: LuaThread.ArgStack): Int { args.lua.push(self.minimumLiquidStatusEffectPercentage); return 1 }
+
+private fun setAppliesEnvironmentStatusEffects(self: StatusController, args: LuaThread.ArgStack): Int { self.appliesEnvironmentStatusEffects = args.nextBoolean(); return 0 }
+private fun setAppliesWeatherStatusEffects(self: StatusController, args: LuaThread.ArgStack): Int { self.appliesWeatherStatusEffects = args.nextBoolean(); return 0 }
+private fun setMinimumLiquidStatusEffectPercentage(self: StatusController, args: LuaThread.ArgStack): Int { self.minimumLiquidStatusEffectPercentage = args.nextDouble(); return 0 }
+
+fun provideStatusControllerBindings(self: StatusController, lua: LuaThread) {
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("status")
+
+	lua.pushBinding(self, "statusProperty", ::statusProperty)
+	lua.pushBinding(self, "setStatusProperty", ::setStatusProperty)
+	lua.pushBinding(self, "stat", ::stat)
+	lua.pushBinding(self, "statPositive", ::statPositive)
+	lua.pushBinding(self, "resourceNames", ::resourceNames)
+	lua.pushBinding(self, "isResource", ::isResource)
+	lua.pushBinding(self, "resource", ::resource)
+	lua.pushBinding(self, "resourcePositive", ::resourcePositive)
+	lua.pushBinding(self, "setResource", ::setResource)
+	lua.pushBinding(self, "modifyResource", ::modifyResource)
+	lua.pushBinding(self, "giveResource", ::giveResource)
+	lua.pushBinding(self, false, "consumeResource", ::consumeResource)
+	lua.pushBinding(self, true, "overConsumeResource", ::consumeResource)
+	lua.pushBinding(self, "resourceLocked", ::resourceLocked)
+	lua.pushBinding(self, "setResourceLocked", ::setResourceLocked)
+	lua.pushBinding(self, "resetResource", ::resetResource)
+	lua.pushBinding(self, "resetAllResources", ::resetAllResources)
+	lua.pushBinding(self, "resourceMax", ::resourceMax)
+	lua.pushBinding(self, "resourcePercentage", ::resourcePercentage)
+	lua.pushBinding(self, "setResourcePercentage", ::setResourcePercentage)
+	lua.pushBinding(self, "modifyResourcePercentage", ::modifyResourcePercentage)
+	lua.pushBinding(self, "getPersistentEffects", ::getPersistentEffects)
+	lua.pushBinding(self, "addPersistentEffect", ::addPersistentEffect)
+	lua.pushBinding(self, "addPersistentEffects", ::addPersistentEffects)
+	lua.pushBinding(self, "setPersistentEffects", ::setPersistentEffects)
+	lua.pushBinding(self, "clearPersistentEffects", ::clearPersistentEffects)
+	lua.pushBinding(self, "clearAllPersistentEffects", ::clearAllPersistentEffects)
+	lua.pushBinding(self, "addEphemeralEffect", ::addEphemeralEffect)
+	lua.pushBinding(self, "addEphemeralEffects", ::addEphemeralEffects)
+	lua.pushBinding(self, "removeEphemeralEffect", ::removeEphemeralEffect)
+	lua.pushBinding(self, "removeEphemeralEffects", ::removeEphemeralEffects)
+	lua.pushBinding(self, "damageTakenSince", ::damageTakenSince)
+	lua.pushBinding(self, "inflictedHitsSince", ::inflictedHitsSince)
+	lua.pushBinding(self, "inflictedDamageSince", ::inflictedDamageSince)
+	lua.pushBinding(self, "activeUniqueStatusEffectSummary", ::activeUniqueStatusEffectSummary)
+	lua.pushBinding(self, "uniqueStatusEffectActive", ::uniqueStatusEffectActive)
+	lua.pushBinding(self, "primaryDirectives", ::primaryDirectives)
+	lua.pushBinding(self, "setPrimaryDirectives", ::setPrimaryDirectives)
+	lua.pushBinding(self, "applySelfDamageRequest", ::applySelfDamageRequest)
+	lua.pushBinding(self, "appliesEnvironmentStatusEffects", ::appliesEnvironmentStatusEffects)
+	lua.pushBinding(self, "appliesWeatherStatusEffects", ::appliesWeatherStatusEffects)
+	lua.pushBinding(self, "minimumLiquidStatusEffectPercentage", ::minimumLiquidStatusEffectPercentage)
+	lua.pushBinding(self, "setAppliesEnvironmentStatusEffects", ::setAppliesEnvironmentStatusEffects)
+	lua.pushBinding(self, "setAppliesWeatherStatusEffects", ::setAppliesWeatherStatusEffects)
+	lua.pushBinding(self, "setMinimumLiquidStatusEffectPercentage", ::setMinimumLiquidStatusEffectPercentage)
+
+	lua.pop()
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/UtilityBindings.kt

@@ -4,19 +4,13 @@ import com.google.gson.JsonElement
 import com.google.gson.JsonNull
 import com.google.gson.internal.bind.TypeAdapters
 import com.google.gson.stream.JsonWriter
-import org.classdump.luna.ByteString
-import org.classdump.luna.runtime.ExecutionContext
 import ru.dbotthepony.kommons.util.XXHash32
 import ru.dbotthepony.kommons.util.XXHash64
 import ru.dbotthepony.kstarbound.Starbound
 import ru.dbotthepony.kstarbound.defs.PerlinNoiseParameters
 import ru.dbotthepony.kstarbound.json.JsonPath
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
 import ru.dbotthepony.kstarbound.lua.LuaThread
 import ru.dbotthepony.kstarbound.lua.LuaType
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
 import ru.dbotthepony.kstarbound.lua.userdata.LuaPerlinNoise
 import ru.dbotthepony.kstarbound.lua.userdata.LuaRandom
 import ru.dbotthepony.kstarbound.util.SBPattern
@@ -47,7 +41,7 @@ private fun replaceTags(args: LuaThread.ArgStack): Int {
 private fun hash32(args: LuaThread.ArgStack): Int {
 	val digest = XXHash32(2938728349.toInt())
 
-	while (args.hasNext()) {
+	while (args.hasNext) {
 		when (args.peek()) {
 			LuaType.BOOLEAN -> digest.update(if (args.nextBoolean()) 1 else 0)
 			LuaType.NUMBER -> toBytes(digest::update, args.nextDouble())
@@ -62,7 +56,7 @@ private fun hash32(args: LuaThread.ArgStack): Int {
 private fun hash64(args: LuaThread.ArgStack): Long {
 	val digest = XXHash64(1997293021376312589L)
 
-	while (args.hasNext()) {
+	while (args.hasNext) {
 		when (args.peek()) {
 			LuaType.BOOLEAN -> digest.update(if (args.nextBoolean()) 1 else 0)
 			LuaType.NUMBER -> toBytes(digest::update, args.nextDouble())
@@ -329,17 +323,34 @@ fun provideUtilityBindings(lua: LuaThread) {
 	lua.pop()
 }
 
-fun provideConfigBindings(lua: LuaEnvironment, lookup: ExecutionContext.(path: JsonPath, ifMissing: Any?) -> Any?) {
-	val config = lua.newTable()
-	lua.globals["config"] = config
-	config["getParameter"] = createConfigBinding(lookup)
+private typealias ConfigLookup = (path: JsonPath) -> JsonElement?
+
+private fun lookupConfigValue(self: ConfigLookup, args: LuaThread.ArgStack): Int {
+	val parameter = args.nextString()
+	val lookup = self(JsonPath.query(parameter))
+
+	if (lookup == null) {
+		// TODO: while this is considerably faster, it does not correspond to original engine behavior where "default value" is always copied (lua -> json -> lua)
+		if (args.top == 1) {
+			args.lua.push()
+		} else if (args.top > 2) {
+			args.lua.dup(2)
+		}
+	} else {
+		args.lua.push(lookup)
+	}
+
+	return 1
 }
 
-fun createConfigBinding(lookup: ExecutionContext.(path: JsonPath, ifMissing: Any?) -> Any?) = luaFunction { name: ByteString, default: Any? ->
-	val get = lookup(this, JsonPath.query(name.decode()), default)
-
-	if (get is JsonElement)
-		returnBuffer.setTo(from(get))
-	else
-		returnBuffer.setTo(get)
+fun provideConfigBinding(lua: LuaThread, lookup: ConfigLookup) {
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("config")
+	lua.pushBinding(lookup, "getParameter", ::lookupConfigValue)
+	lua.pop()
+}
+
+fun createConfigBinding(lua: LuaThread, lookup: ConfigLookup) {
+	lua.push { lookupConfigValue(lookup, it) }
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/WorldEntityBindings.kt

@@ -522,10 +522,10 @@ private fun getObjectParameter(self: World<*, *>, args: LuaThread.ArgStack): Int
 	// FIXME: this is stupid (defaultValue is ignored when we lookup parameter on non existing entity),
 	//  but we must retain original behavior
 	val entity = self.entities[id] as? WorldObject ?: return 0
-	val result = entity.lookupProperty(parameter)
+	val result = entity.lookupPropertyOrNull(parameter)
 
-	if (result.isJsonNull) {
-		// TODO: while this is faster, it does not correspond to original engine behavior where "default value" is always copied (lua -> json -> lua)
+	if (result == null) {
+		// TODO: while this is considerably faster, it does not correspond to original engine behavior where "default value" is always copied (lua -> json -> lua)
 		if (args.top == 2) {
 			args.lua.push()
 		} else if (args.top != 3) {

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/WorldEnvironmentalBindings.kt

@@ -24,7 +24,7 @@ import ru.dbotthepony.kstarbound.world.tileAreaBrush
 import java.util.concurrent.CompletableFuture
 
 private fun damageTilesImpl(self: World<*, *>, args: LuaThread.ArgStack): CompletableFuture<TileDamageResult> {
-	val positions = args.readTableValues { getVector2i() ?: throw IllegalArgumentException("Positions table contains invalid positions") }
+	val positions = args.readTableValues { getVector2i(it) ?: throw IllegalArgumentException("Positions table contains invalid positions") }
 	val isBackground = args.nextBoolean()
 
 	val sourcePosition = args.nextVector2d()

src/main/kotlin/ru/dbotthepony/kstarbound/lua/bindings/WorldObjectBindings.kt

@@ -1,255 +1,363 @@
 package ru.dbotthepony.kstarbound.lua.bindings
 
-import com.google.common.collect.ImmutableList
 import com.google.gson.JsonNull
 import com.google.gson.JsonPrimitive
-import org.classdump.luna.ByteString
-import org.classdump.luna.LuaRuntimeException
-import org.classdump.luna.Table
+import it.unimi.dsi.fastutil.objects.Object2ObjectArrayMap
 import ru.dbotthepony.kstarbound.Registries
 import ru.dbotthepony.kstarbound.Starbound
 import ru.dbotthepony.kstarbound.defs.DamageSource
-import ru.dbotthepony.kstarbound.defs.quest.QuestArcDescriptor
-import ru.dbotthepony.kstarbound.defs.quest.QuestDescriptor
+import ru.dbotthepony.kstarbound.fromJsonFast
 import ru.dbotthepony.kstarbound.json.JsonPath
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.get
-import ru.dbotthepony.kstarbound.lua.indexNoYield
-import ru.dbotthepony.kstarbound.lua.iterator
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.tableOf
-import ru.dbotthepony.kstarbound.lua.toByteString
-import ru.dbotthepony.kstarbound.lua.toColor
-import ru.dbotthepony.kstarbound.lua.toJson
-import ru.dbotthepony.kstarbound.lua.toJsonFromLua
-import ru.dbotthepony.kstarbound.lua.toVector2d
-import ru.dbotthepony.kstarbound.lua.toVector2i
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.LuaType
+import ru.dbotthepony.kstarbound.lua.getVector2i
+import ru.dbotthepony.kstarbound.lua.nextColor
+import ru.dbotthepony.kstarbound.lua.nextVector2d
+import ru.dbotthepony.kstarbound.lua.push
+import ru.dbotthepony.kstarbound.lua.setTableValue
 import ru.dbotthepony.kstarbound.util.SBPattern
 import ru.dbotthepony.kstarbound.util.sbIntern
 import ru.dbotthepony.kstarbound.world.entities.AbstractEntity
 import ru.dbotthepony.kstarbound.world.entities.tile.WorldObject
+import kotlin.collections.forEach
+import kotlin.collections.isNotEmpty
+import kotlin.collections.set
+import kotlin.collections.withIndex
 
-fun provideWorldObjectBindings(self: WorldObject, lua: LuaEnvironment) {
-	val config = lua.newTable()
-	lua.globals["config"] = config
-
-	config["getParameter"] = luaFunction { name: ByteString, default: Any? ->
-		val path = JsonPath.query(name.decode())
-		val find = self.lookupProperty(path) { JsonNull.INSTANCE }
-
-		if (find.isJsonNull) {
-			returnBuffer.setTo(default)
-		} else {
-			returnBuffer.setTo(from(find))
-		}
-	}
-
-	val table = lua.newTable()
-	lua.globals["object"] = table
-
-	table["name"] = luaFunction { returnBuffer.setTo(self.config.key.toByteString()) }
-	table["direction"] = luaFunction { returnBuffer.setTo(self.direction.numericalValue) }
-	table["position"] = luaFunction { returnBuffer.setTo(from(self.tilePosition)) }
-	table["setInteractive"] = luaFunction { interactive: Boolean -> self.isInteractive = interactive }
-	table["uniqueId"] = luaFunction { returnBuffer.setTo(self.uniqueID.get().toByteString()) }
-	table["setUniqueId"] = luaFunction { id: ByteString? -> self.uniqueID.accept(id?.decode()?.sbIntern()) }
-	table["boundBox"] = luaFunction { returnBuffer.setTo(from(self.metaBoundingBox)) }
-
-	// original engine parity, it returns occupied spaces in local coordinates
-	table["spaces"] = luaFunction { returnBuffer.setTo(tableOf(*self.occupySpaces.map { from(it - self.tilePosition) }.toTypedArray())) }
-
-	table["setProcessingDirectives"] = luaFunction { directives: ByteString -> self.animator.processingDirectives = directives.decode() }
-	table["setSoundEffectEnabled"] = luaFunction { state: Boolean -> self.soundEffectEnabled = state }
-
-	table["smash"] = luaFunction { smash: Boolean? ->
-		if (smash == true) {
-			self.health = 0.0
-		}
-
-		self.remove(AbstractEntity.RemovalReason.DYING)
-	}
-
-	table["level"] = luaFunction { returnBuffer.setTo(self.lookupProperty(JsonPath("level")) { JsonPrimitive(self.world.template.threatLevel) }.asDouble) }
-	table["toAbsolutePosition"] = luaFunction { pos: Table -> returnBuffer.setTo(from(toVector2d(pos) + self.position)) }
-
-	table["say"] = luaFunction { line: ByteString, tags: Table?, sayConfig: Table? ->
-		if (tags == null) {
-			if (line.isEmpty) {
-				returnBuffer.setTo(false)
-			} else {
-				self.addChatMessage(line.decode(), sayConfig?.toJson() ?: JsonNull.INSTANCE)
-				returnBuffer.setTo(true)
-			}
-		} else {
-			if (line.isEmpty) {
-				returnBuffer.setTo(false)
-			} else {
-				self.addChatMessage(SBPattern.of(line.decode()).resolveOrSkip({ tags[it]?.toString() }), sayConfig?.toJson() ?: JsonNull.INSTANCE)
-				returnBuffer.setTo(true)
-			}
-		}
-	}
-
-	table["sayPortrait"] = luaFunction { line: ByteString, portrait: ByteString, tags: Table?, config: Table ->
-		if (tags == null) {
-			if (line.isEmpty) {
-				returnBuffer.setTo(false)
-			} else {
-				self.addChatMessage(line.decode(), config.toJson(), portrait.decode())
-				returnBuffer.setTo(true)
-			}
-		} else {
-			if (line.isEmpty) {
-				returnBuffer.setTo(false)
-			} else {
-				self.addChatMessage(SBPattern.of(line.decode()).resolveOrSkip({ tags[it]?.toString() }), config.toJson(), portrait.decode())
-				returnBuffer.setTo(true)
-			}
-		}
-	}
-
-	table["isTouching"] = luaFunction { entity: Number ->
-		val find = self.world.entities[entity]
-
-		if (find != null) {
-			returnBuffer.setTo(find.collisionArea.intersect(self.volumeBoundingBox))
-		} else {
-			returnBuffer.setTo(false)
-		}
-	}
-
-	table["setLightColor"] = luaFunction { color: Table ->
-		self.lightSourceColor = toColor(color)
-	}
-
-	table["getLightColor"] = luaFunction {
-		returnBuffer.setTo(from(self.lightSourceColor))
-	}
-
-	table["inputNodeCount"] = luaFunction { returnBuffer.setTo(self.inputNodes.size.toLong()) }
-	table["outputNodeCount"] = luaFunction { returnBuffer.setTo(self.outputNodes.size.toLong()) }
-
-	table["getInputNodePosition"] = luaFunction { index: Long ->
-		returnBuffer.setTo(from(self.inputNodes[index.toInt()].position))
-	}
-
-	table["getOutputNodePosition"] = luaFunction { index: Long ->
-		returnBuffer.setTo(from(self.outputNodes[index.toInt()].position))
-	}
-
-	table["getInputNodeLevel"] = luaFunction { index: Long ->
-		returnBuffer.setTo(self.inputNodes[index.toInt()].state)
-	}
-
-	table["getOutputNodeLevel"] = luaFunction { index: Long ->
-		returnBuffer.setTo(self.outputNodes[index.toInt()].state)
-	}
-
-	table["isInputNodeConnected"] = luaFunction { index: Long ->
-		returnBuffer.setTo(self.inputNodes[index.toInt()].connections.isNotEmpty())
-	}
-
-	table["isOutputNodeConnected"] = luaFunction { index: Long ->
-		returnBuffer.setTo(self.outputNodes[index.toInt()].connections.isNotEmpty())
-	}
-
-	table["getInputNodeIds"] = luaFunction { index: Long ->
-		val results = newTable()
-
-		for (connection in self.inputNodes[index.toInt()].connections) {
-			val entity = self.world.entityIndex.tileEntityAt(connection.entityLocation, WorldObject::class)
-
-			if (entity != null) {
-				results[entity.entityID] = connection.index
-			}
-		}
-
-		returnBuffer.setTo(results)
-	}
-
-	table["getOutputNodeIds"] = luaFunction { index: Long ->
-		val results = newTable()
-
-		for (connection in self.outputNodes[index.toInt()].connections) {
-			val entity = self.world.entityIndex.tileEntityAt(connection.entityLocation, WorldObject::class)
-
-			if (entity != null) {
-				results[entity.entityID] = connection.index
-			}
-		}
-
-		returnBuffer.setTo(results)
-	}
-
-	table["setOutputNodeLevel"] = luaFunction { index: Long, state: Boolean ->
-		self.outputNodes[index.toInt()].state = state
-	}
-
-	table["setAllOutputNodes"] = luaFunction { state: Boolean ->
-		self.outputNodes.forEach { it.state = state }
-	}
-
-	table["setOfferedQuests"] = luaFunction { quests: Table? ->
-		self.offeredQuests.clear()
-
-		if (quests != null) {
-			for ((_, v) in quests) {
-				if (v is Table) {
-					self.offeredQuests.add(Starbound.gson.fromJson(v.toJson(), QuestArcDescriptor::class.java))
-				} else if (v is ByteString) {
-					self.offeredQuests.add(QuestArcDescriptor(ImmutableList.of(QuestDescriptor(v.decode()))))
-				} else {
-					throw LuaRuntimeException("Unknown quest arc descriptor type: $v")
-				}
-			}
-		}
-	}
-
-	table["setTurnInQuests"] = luaFunction { quests: Table? ->
-		self.turnInQuests.clear()
-
-		if (quests != null) {
-			for ((_, v) in quests) {
-				self.turnInQuests.add((v as ByteString).decode())
-			}
-		}
-	}
-
-	table["setConfigParameter"] = luaFunction { key: ByteString, value: Any? ->
-		self.parameters[key.decode()] = toJsonFromLua(value)
-	}
-
-	table["setAnimationParameter"] = luaFunction { key: ByteString, value: Any? ->
-		self.scriptedAnimationParameters[key.decode()] = toJsonFromLua(value)
-	}
-
-	table["setMaterialSpaces"] = luaFunction { spaces: Table? ->
-		self.declaredMaterialSpaces.clear()
-
-		if (spaces != null) {
-			for ((i, pair) in spaces) {
-				pair as Table
-
-				val position = toVector2i(indexNoYield(pair, 1L) ?: throw NullPointerException("invalid space at $i"))
-				val material = indexNoYield(pair, 2L) as? ByteString ?: throw NullPointerException("invalid space at $i")
-
-				self.declaredMaterialSpaces.add(position to Registries.tiles.ref(material.decode()))
-			}
-		}
-	}
-
-	table["setDamageSources"] = luaFunction { sources: Table? ->
-		self.customDamageSources.clear()
-
-		if (sources != null) {
-			for ((_, v) in sources) {
-				self.customDamageSources.add(Starbound.gson.fromJson((v as Table).toJson(), DamageSource::class.java))
-			}
-		}
-	}
-
-	table["health"] = luaFunction { returnBuffer.setTo(self.health) }
-	table["setHealth"] = luaFunction { health: Double -> self.health = health }
+private fun name(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.config.key)
+	return 1
+}
+
+private fun directions(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.direction.numericalValue)
+	return 1
+}
+
+private fun position(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.tilePosition)
+	return 1
+}
+
+private fun setInteractive(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.isInteractive = args.nextBoolean()
+	return 0
+}
+
+private fun uniqueId(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.uniqueID.get())
+	return 1
+}
+
+private fun setUniqueId(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.uniqueID.accept(args.nextOptionalString()?.sbIntern())
+	return 0
+}
+
+private fun boundBox(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.metaBoundingBox)
+	return 1
+}
+
+// original engine parity, it returns occupied spaces in local coordinates
+private fun spaces(self: WorldObject, local: Boolean, args: LuaThread.ArgStack): Int {
+	val spaces = self.occupySpaces
+	val spos = self.tilePosition
+
+	args.lua.pushTable(spaces.size)
+
+	if (local) {
+		for ((i, pos) in spaces.withIndex()) {
+			args.lua.setTableValue(i + 1, pos - spos)
+		}
+	} else {
+		for ((i, pos) in spaces.withIndex()) {
+			args.lua.setTableValue(i + 1, pos)
+		}
+	}
+
+	return 1
+}
+
+private fun setProcessingDirectives(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.animator.processingDirectives = args.nextString().sbIntern()
+	return 0
+}
+
+private fun setSoundEffectEnabled(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.soundEffectEnabled = args.nextBoolean()
+	return 0
+}
+
+private fun smash(self: WorldObject, args: LuaThread.ArgStack): Int {
+	if (args.nextOptionalBoolean() == true) {
+		self.health = 0.0
+	}
+
+	self.remove(AbstractEntity.RemovalReason.DYING)
+	return 0
+}
+
+private fun level(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.lookupProperty(JsonPath("level")) { JsonPrimitive(self.world.template.threatLevel) }.asDouble)
+	return 1
+}
+
+private fun toAbsolutePosition(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(args.nextVector2d() + self.position)
+	return 1
+}
+
+private fun say(self: WorldObject, hasPortrait: Boolean, args: LuaThread.ArgStack): Int {
+	val line = args.nextString()
+	val portrait = if (hasPortrait) args.nextString() else null
+	val tags = Object2ObjectArrayMap<String, String>()
+	val tagsType = args.peek()
+
+	if (tagsType == LuaType.TABLE) {
+		val pairs = args.readTable(
+			keyVisitor = { getString(it) ?: throw IllegalArgumentException("Tag replacement table contains non-strings as keys") },
+			valueVisitor = { getString(it) ?: throw IllegalArgumentException("Tag replacement table contains non-strings as keys") },
+		)
+
+		for ((k, v) in pairs) {
+			tags[k] = v
+		}
+	} else if (!tagsType.isNothing) {
+		throw IllegalArgumentException("bad argument #2 to object.say: table expected, got $tagsType")
+	} else {
+		args.skip()
+	}
+
+	val sayConfig = args.nextOptionalJson() ?: JsonNull.INSTANCE
+
+	if (line.isBlank()) {
+		args.lua.push(false)
+	} else if (tags.isEmpty()) {
+		self.addChatMessage(line, sayConfig, portrait = portrait)
+		args.lua.push(true)
+	} else {
+		self.addChatMessage(SBPattern.of(line).resolveOrSkip(tags::get), sayConfig, portrait = portrait)
+		args.lua.push(true)
+	}
+
+	return 1
+}
+
+private fun isTouching(self: WorldObject, args: LuaThread.ArgStack): Int {
+	val id = args.nextInt()
+	val entity = self.world.entities[id]
+
+	if (entity == null) {
+		args.lua.push(false)
+	} else {
+		args.lua.push(entity.collisionArea.intersect(self.volumeBoundingBox))
+	}
+
+	return 1
+}
+
+private fun setLightColor(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.lightSourceColor = args.nextColor()
+	return 0
+}
+
+private fun getLightColor(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.lightSourceColor)
+	return 1
+}
+
+private fun inputNodeCount(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.inputNodes.size.toLong())
+	return 1
+}
+
+private fun outputNodeCount(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.outputNodes.size.toLong())
+	return 1
+}
+
+private fun getInputNodePosition(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.inputNodes[args.nextInt()].position)
+	return 1
+}
+
+private fun getOutputNodePosition(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.outputNodes[args.nextInt()].position)
+	return 1
+}
+
+private fun getInputNodeLevel(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.inputNodes[args.nextInt()].state)
+	return 1
+}
+
+private fun getOutputNodeLevel(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.outputNodes[args.nextInt()].state)
+	return 1
+}
+
+private fun isInputNodeConnected(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.inputNodes[args.nextInt()].connections.isNotEmpty())
+	return 1
+}
+
+private fun isOutputNodeConnected(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.outputNodes[args.nextInt()].connections.isNotEmpty())
+	return 1
+}
+
+private fun getInputNodeIds(self: WorldObject, args: LuaThread.ArgStack): Int {
+	val connections = self.inputNodes[args.nextInt()].connections
+
+	args.lua.pushTable(connections.size)
+
+	for (connection in connections) {
+		val entity = self.world.entityIndex.tileEntityAt(connection.entityLocation, WorldObject::class)
+
+		if (entity != null) {
+			args.lua.setTableValue(entity.entityID, connection.index)
+		}
+	}
+
+	return 1
+}
+
+private fun getOutputNodeIds(self: WorldObject, args: LuaThread.ArgStack): Int {
+	val connections = self.outputNodes[args.nextInt()].connections
+
+	args.lua.pushTable(connections.size)
+
+	for (connection in connections) {
+		val entity = self.world.entityIndex.tileEntityAt(connection.entityLocation, WorldObject::class)
+
+		if (entity != null) {
+			args.lua.setTableValue(entity.entityID, connection.index)
+		}
+	}
+
+	return 1
+}
+
+private fun setOutputNodeLevel(self: WorldObject, args: LuaThread.ArgStack): Int {
+	val index = args.nextInt()
+	val state = args.nextBoolean()
+	self.outputNodes[index].state = state
+	return 0
+}
+
+private fun setAllOutputNodes(self: WorldObject, args: LuaThread.ArgStack): Int {
+	val state = args.nextBoolean()
+	self.outputNodes.forEach { it.state = state }
+	return 0
+}
+
+private fun setConfigParameter(self: WorldObject, args: LuaThread.ArgStack): Int {
+	val key = args.nextString().sbIntern()
+	val value = args.nextJson()
+	self.parameters[key] = value
+	return 0
+}
+
+private fun setAnimationParameter(self: WorldObject, args: LuaThread.ArgStack): Int {
+	val key = args.nextString().sbIntern()
+	val value = args.nextJson()
+	self.scriptedAnimationParameters[key] = value
+	return 0
+}
+
+private fun setMaterialSpaces(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.declaredMaterialSpaces.clear()
+
+	if (args.hasNext) {
+		val pairs = args.readTableValues { tI ->
+			push(1L)
+			val vType = loadTableValue(tI)
+			val position = getVector2i() ?: throw IllegalArgumentException("invalid space pair, first value is not a vector: $vType")
+
+			push(2L)
+			val mType = loadTableValue(tI)
+			val material = getString() ?: throw IllegalArgumentException("invalid space pair, second value is not a string: $mType")
+
+			position to Registries.tiles.ref(material)
+		}
+
+		self.declaredMaterialSpaces.addAll(pairs)
+	}
+
+	return 0
+}
+
+private fun setDamageSources(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.customDamageSources.clear()
+
+	if (args.hasNext) {
+		val sources = args.readTableValues {
+			Starbound.gson.fromJsonFast(getJson(it)!!, DamageSource::class.java)
+		}
+
+		self.customDamageSources.addAll(sources)
+	}
+
+	return 0
+}
+
+private fun health(self: WorldObject, args: LuaThread.ArgStack): Int {
+	args.lua.push(self.health)
+	return 1
+}
+
+private fun setHealth(self: WorldObject, args: LuaThread.ArgStack): Int {
+	self.health = args.nextDouble()
+	return 0
+}
+
+fun provideWorldObjectBindings(self: WorldObject, lua: LuaThread) {
+	provideConfigBinding(lua, self::lookupPropertyOrNull)
+
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("object")
+
+	lua.pushBinding(self, "name", ::name)
+	lua.pushBinding(self, "directions", ::directions)
+	lua.pushBinding(self, "position", ::position)
+	lua.pushBinding(self, "setInteractive", ::setInteractive)
+	lua.pushBinding(self, "uniqueId", ::uniqueId)
+	lua.pushBinding(self, "setUniqueId", ::setUniqueId)
+	lua.pushBinding(self, "boundBox", ::boundBox)
+	lua.pushBinding(self, true, "spaces", ::spaces)
+	lua.pushBinding(self, false, "worldSpaces", ::spaces)
+	lua.pushBinding(self, "setProcessingDirectives", ::setProcessingDirectives)
+	lua.pushBinding(self, "setSoundEffectEnabled", ::setSoundEffectEnabled)
+	lua.pushBinding(self, "smash", ::smash)
+	lua.pushBinding(self, "level", ::level)
+	lua.pushBinding(self, "toAbsolutePosition", ::toAbsolutePosition)
+	lua.pushBinding(self, false, "say", ::say)
+	lua.pushBinding(self, true, "sayPortrait", ::say)
+	lua.pushBinding(self, "isTouching", ::isTouching)
+	lua.pushBinding(self, "setLightColor", ::setLightColor)
+	lua.pushBinding(self, "getLightColor", ::getLightColor)
+	lua.pushBinding(self, "inputNodeCount", ::inputNodeCount)
+	lua.pushBinding(self, "outputNodeCount", ::outputNodeCount)
+	lua.pushBinding(self, "getInputNodePosition", ::getInputNodePosition)
+	lua.pushBinding(self, "getOutputNodePosition", ::getOutputNodePosition)
+	lua.pushBinding(self, "getInputNodeLevel", ::getInputNodeLevel)
+	lua.pushBinding(self, "getOutputNodeLevel", ::getOutputNodeLevel)
+	lua.pushBinding(self, "isInputNodeConnected", ::isInputNodeConnected)
+	lua.pushBinding(self, "isOutputNodeConnected", ::isOutputNodeConnected)
+	lua.pushBinding(self, "getInputNodeIds", ::getInputNodeIds)
+	lua.pushBinding(self, "getOutputNodeIds", ::getOutputNodeIds)
+	lua.pushBinding(self, "setOutputNodeLevel", ::setOutputNodeLevel)
+	lua.pushBinding(self, "setAllOutputNodes", ::setAllOutputNodes)
+	lua.pushBinding(self, WorldObject::offeredQuests, "setOfferedQuests", ::setOfferedQuests)
+	lua.pushBinding(self, WorldObject::turnInQuests, "setTurnInQuests", ::setTurnInQuests)
+	lua.pushBinding(self, "setConfigParameter", ::setConfigParameter)
+	lua.pushBinding(self, "setAnimationParameter", ::setAnimationParameter)
+	lua.pushBinding(self, "setMaterialSpaces", ::setMaterialSpaces)
+	lua.pushBinding(self, "setDamageSources", ::setDamageSources)
+	lua.pushBinding(self, "health", ::health)
+	lua.pushBinding(self, "setHealth", ::setHealth)
+
+	lua.pop()
 }

src/main/kotlin/ru/dbotthepony/kstarbound/lua/userdata/BehaviorNodeType.kt

@@ -1,4 +1,4 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
+package ru.dbotthepony.kstarbound.lua.userdata
 
 import ru.dbotthepony.kstarbound.json.builder.IStringSerializable
 

src/main/kotlin/ru/dbotthepony/kstarbound/lua/userdata/BehaviorState.kt

@@ -1,126 +1,303 @@
 package ru.dbotthepony.kstarbound.lua.userdata
 
+import com.google.common.collect.ImmutableList
+import com.google.gson.JsonArray
 import com.google.gson.JsonNull
 import com.google.gson.JsonObject
-import org.classdump.luna.ByteString
-import org.classdump.luna.LuaRuntimeException
-import org.classdump.luna.Table
-import org.classdump.luna.Userdata
-import org.classdump.luna.impl.ImmutableTable
-import org.classdump.luna.runtime.LuaFunction
+import com.google.gson.JsonPrimitive
+import ru.dbotthepony.kommons.gson.contains
+import ru.dbotthepony.kommons.gson.get
 import ru.dbotthepony.kommons.gson.set
+import ru.dbotthepony.kommons.gson.stream
 import ru.dbotthepony.kstarbound.Registries
 import ru.dbotthepony.kstarbound.Starbound
 import ru.dbotthepony.kstarbound.defs.actor.behavior.BehaviorDefinition
+import ru.dbotthepony.kstarbound.defs.actor.behavior.CompositeNodeType
+import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeOutput
+import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameter
+import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameterValue
 import ru.dbotthepony.kstarbound.fromJsonFast
 import ru.dbotthepony.kstarbound.json.mergeJson
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.get
-import ru.dbotthepony.kstarbound.lua.iterator
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.lua.tableMapOf
-import ru.dbotthepony.kstarbound.lua.toJson
+import ru.dbotthepony.kstarbound.lua.LuaHandle
+import ru.dbotthepony.kstarbound.lua.LuaThread
+import ru.dbotthepony.kstarbound.lua.LuaType
 import ru.dbotthepony.kstarbound.lua.toJsonFromLua
-import ru.dbotthepony.kstarbound.world.entities.behavior.AbstractBehaviorNode
-import ru.dbotthepony.kstarbound.world.entities.behavior.BehaviorTree
-import ru.dbotthepony.kstarbound.world.entities.behavior.Blackboard
-import java.util.concurrent.atomic.AtomicLong
+import ru.dbotthepony.kstarbound.util.valueOf
 
-class BehaviorState(val tree: BehaviorTree) : Userdata<BehaviorState>() {
-	val blackboard get() = tree.blackboard
-	val lua get() = blackboard.lua
-	val functions = HashMap<String, LuaFunction<*, *, *, *, *>>()
+private fun replaceBehaviorTag(parameter: NodeParameterValue, treeParameters: Map<String, NodeParameterValue>): NodeParameterValue {
+	var str: String? = null
 
-	init {
-		lua.attach(tree.scripts)
+	if (parameter.key != null)
+		str = parameter.key
 
-		for (name in tree.functions) {
-			val get = lua.globals[name]
+	// original engine does this, and i don't know why this make any sense
+	else if (parameter.value is JsonPrimitive && parameter.value.isString)
+		str = parameter.value.asString
 
-			if (get == null) {
-				throw LuaRuntimeException("No such function for behavior: $name")
-			} else if (get !is LuaFunction<*, *, *, *, *>) {
-				throw LuaRuntimeException("Not a Lua function for behavior: $name")
+	if (!str.isNullOrEmpty()) {
+		if (str.first() == '<' && str.last() == '>') {
+			val treeKey = str.substring(1, str.length - 1)
+			val param = treeParameters[treeKey]
+
+			if (param != null) {
+				return param
 			} else {
-				this.functions[name] = get
+				throw NoSuchElementException("No parameter specified for tag '$treeKey'")
 			}
 		}
 	}
 
-	fun run(delta: Double): AbstractBehaviorNode.Status {
-		val ephemerals = blackboard.takeEphemerals()
-		val status = tree.runAndReset(delta, this)
-		blackboard.clearEphemerals(ephemerals)
-		return status
-	}
+	return parameter
+}
 
-	override fun getMetatable(): Table {
-		return Companion.metatable
-	}
+private fun replaceOutputBehaviorTag(output: String?, treeParameters: Map<String, NodeParameterValue>): String? {
+	if (output == null) {
+		return null
+	} else if (output.first() == '<' && output.last() == '>') {
+		val replacement = treeParameters[output.substring(1, output.length - 1)] ?: throw NoSuchElementException("No parameter specified for tag '$output'")
 
-	override fun setMetatable(mt: Table?): Table {
-		throw UnsupportedOperationException()
-	}
-
-	override fun getUserValue(): BehaviorState {
-		return this
-	}
-
-	override fun setUserValue(value: BehaviorState?): BehaviorState? {
-		throw UnsupportedOperationException()
-	}
-
-	companion object {
-		// required for Lua code
-		// in original engine, passes directly 32/64 bit pointer of *Node struct
-		val NODE_GARBAGE_INDEX = AtomicLong()
-
-		private fun __index(): Table {
-			return metatable
-		}
-
-		private val metatable = ImmutableTable.Builder()
-			.add("__index", luaFunction { _: Any?, index: Any -> returnBuffer.setTo(__index()[index]) })
-			.add("run", luaFunction { self: BehaviorState, delta: Number ->
-				returnBuffer.setTo(self.run(delta.toDouble()))
-			})
-			.add("clear", luaFunction { self: BehaviorState ->
-				self.tree.reset()
-			})
-			.add("blackboard", luaFunction { self: BehaviorState ->
-				returnBuffer.setTo(self.blackboard)
-			})
-			.build()
-
-		fun provideBindings(lua: LuaEnvironment) {
-			lua.globals["behavior"] = lua.tableMapOf(
-				"behavior" to luaFunction { config: Any, parameters: Table, _: Any?, blackboard: Blackboard? ->
-					val tree: BehaviorTree
-
-					if (config is ByteString) {
-						val base = Registries.behavior.getOrThrow(config.decode())
-
-						if (!parameters.iterator().hasNext()) {
-							tree = BehaviorTree(blackboard ?: Blackboard(lua), base.value)
-						} else {
-							tree = BehaviorTree(blackboard ?: Blackboard(lua), Starbound.gson.fromJsonFast(base.json.deepCopy().also {
-								it as JsonObject
-								it["parameters"] = mergeJson(it["parameters"] ?: JsonNull.INSTANCE, toJsonFromLua(parameters))
-							}, BehaviorDefinition::class.java))
-						}
-					} else {
-						val cast = (config as Table).toJson(true) as JsonObject
-
-						if (parameters.iterator().hasNext())
-							cast["parameters"] = mergeJson(cast["parameters"] ?: JsonNull.INSTANCE, toJsonFromLua(parameters))
-
-						tree = BehaviorTree(blackboard ?: Blackboard(lua), Starbound.gson.fromJsonFast(cast, BehaviorDefinition::class.java))
-					}
-
-					returnBuffer.setTo(BehaviorState(tree))
-				}
-			)
-		}
+		if (replacement.key != null)
+			return replacement.key
+		else if (replacement.value is JsonPrimitive && replacement.value.isString)
+			return replacement.value.asString
+		else
+			return null
+	} else {
+		return output
 	}
 }
+
+@JvmName("pushInputs")
+private fun push(lua: LuaThread, parameters: Map<String, NodeParameter>) {
+	lua.pushTable(hashSize = parameters.size)
+
+	for ((k, v) in parameters) {
+		lua.push(k)
+		v.push(lua)
+		lua.setTableValue()
+	}
+}
+
+@JvmName("pushOutputs")
+private fun push(lua: LuaThread, parameters: Map<String, NodeOutput>) {
+	lua.pushTable(hashSize = parameters.size)
+
+	for ((k, v) in parameters) {
+		lua.push(k)
+		v.push(lua)
+		lua.setTableValue()
+	}
+}
+
+private fun createNode(
+	lua: LuaThread,
+	data: JsonObject,
+	treeParameters: Map<String, NodeParameterValue>,
+	blackboard: LuaHandle,
+	scripts: MutableSet<String>,
+	functions: MutableSet<String>,
+	handles: MutableList<LuaHandle>
+): LuaHandle {
+	val type = BehaviorNodeType.entries.valueOf(data["type"].asString)
+	val name = data["name"].asString
+	val parameterConfig = data.get("parameters") { JsonObject() }
+
+	if (type == BehaviorNodeType.MODULE) {
+		val base = Registries.behavior.getOrThrow(name).value
+		base.scripts.forEach { scripts.add(it.fullPath) }
+
+		// merge in module parameters to a copy of the treeParameters to propagate
+		// tree parameters into the subtree, but allow modules to override
+		val mergedParameters = LinkedHashMap(base.mappedParameters)
+		mergedParameters.putAll(treeParameters)
+
+		for ((k, v) in parameterConfig.entrySet()) {
+			mergedParameters[k] = replaceBehaviorTag(
+				Starbound.gson.fromJsonFast(v, NodeParameterValue::class.java),
+				treeParameters
+			)
+		}
+
+		return createNode(lua, base.root, mergedParameters, blackboard, scripts, functions, handles)
+	}
+
+	val parameters = LinkedHashMap(Registries.behaviorNodes.getOrThrow(name).value.properties)
+
+	for ((k, v) in parameters.entries) {
+		if (k in parameterConfig) {
+			parameters[k] = v.copy(value = replaceBehaviorTag(
+				Starbound.gson.fromJsonFast(
+					parameterConfig[k],
+					NodeParameterValue::class.java
+				), treeParameters)
+			)
+		} else {
+			val replaced = replaceBehaviorTag(v.value, treeParameters)
+
+			if (replaced != v.value) {
+				parameters[k] = v.copy(value = replaced)
+			}
+		}
+	}
+
+	when (type) {
+		BehaviorNodeType.ACTION -> {
+			functions.add(name)
+
+			val outputConfig = data.get("output") { JsonObject() }
+			val output = LinkedHashMap(Registries.behaviorNodes.getOrThrow(name).value.output)
+
+			for ((k, v) in output.entries) {
+				val replaced = replaceOutputBehaviorTag(outputConfig[k]?.asString ?: v.key, treeParameters)
+
+				if (replaced != v.key) {
+					output[k] = v.copy(key = replaced)
+				}
+			}
+
+			check(lua.loadGlobal("ActionNode") == LuaType.FUNCTION) { "Global ActionNode is not a Lua function" }
+			lua.push(name)
+			push(lua, parameters)
+			push(lua, output)
+			lua.call(3, 1)
+			val handle = lua.createHandle()
+			handles.add(handle)
+			lua.pop()
+			return handle
+		}
+
+		BehaviorNodeType.DECORATOR -> {
+			functions.add(name)
+			val sacrifice = createNode(lua, data["child"] as JsonObject, treeParameters, blackboard, scripts, functions, handles)
+
+			check(lua.loadGlobal("DecoratorNode") == LuaType.FUNCTION) { "Global DecoratorNode is not a Lua function" }
+			lua.push(name)
+			push(lua, parameters)
+			lua.push(sacrifice)
+			lua.call(3, 1)
+			val handle = lua.createHandle()
+			handles.add(handle)
+			lua.pop()
+
+			return handle
+		}
+
+		BehaviorNodeType.COMPOSITE -> {
+			val children = data.get("children") { JsonArray() }
+				.stream()
+				.map { createNode(lua, it as JsonObject, treeParameters, blackboard, scripts, functions, handles) }
+				.collect(ImmutableList.toImmutableList())
+
+			val factory = CompositeNodeType.entries.valueOf(name)
+
+			check(lua.loadGlobal(factory.fnName) == LuaType.FUNCTION) { "Global ${factory.fnName} is not a Lua function" }
+			push(lua, parameters)
+
+			lua.pushTable(children.size)
+
+			for ((i, child) in children.withIndex()) {
+				lua.push(i + 1L)
+				lua.push(child)
+				lua.setTableValue()
+			}
+
+			lua.call(2, 1)
+			val handle = lua.createHandle()
+			handles.add(handle)
+			lua.pop()
+			return handle
+		}
+
+		BehaviorNodeType.MODULE -> throw RuntimeException()
+	}
+}
+
+private fun createBlackboard(lua: LuaThread): LuaHandle {
+	lua.loadGlobal("Blackboard")
+	lua.call(numResults = 1)
+	val handle = lua.createHandle()
+	lua.pop()
+	return handle
+}
+
+private fun createBehaviorTree(args: LuaThread.ArgStack): Int {
+	val functions = HashSet<String>()
+	val scripts = HashSet<String>()
+	val mergedParams: BehaviorDefinition
+	val blackboard: LuaHandle
+	val handles = ArrayList<LuaHandle>()
+
+	if (args.peek() == LuaType.STRING) {
+		val base = Registries.behavior.getOrThrow(args.nextString())
+		val parameters = args.nextJson() as JsonObject
+		args.skip()
+
+		if (args.peek().isNothing) {
+			blackboard = createBlackboard(args.lua)
+		} else {
+			// assume proper blackboard was given
+			args.lua.dup(args.position++)
+			blackboard = args.lua.createHandle()
+			args.lua.pop()
+		}
+
+		if (parameters.size() == 0) {
+			mergedParams = base.value
+		} else {
+			mergedParams = Starbound.gson.fromJsonFast(base.json.deepCopy().also {
+				it as JsonObject
+				it["parameters"] = mergeJson(it["parameters"] ?: JsonNull.INSTANCE, toJsonFromLua(parameters))
+			}, BehaviorDefinition::class.java)
+		}
+	} else {
+		val config = args.nextJson() as JsonObject
+		val parameters = args.nextJson() as JsonObject
+		args.skip()
+
+		if (args.peek().isNothing) {
+			blackboard = createBlackboard(args.lua)
+		} else {
+			// assume proper blackboard was given
+			args.lua.dup(args.position++)
+			blackboard = args.lua.createHandle()
+			args.lua.pop()
+		}
+
+		if (parameters.size() != 0)
+			config["parameters"] = mergeJson(config["parameters"] ?: JsonNull.INSTANCE, parameters)
+
+		mergedParams = Starbound.gson.fromJsonFast(config, BehaviorDefinition::class.java)
+	}
+
+	handles.add(blackboard)
+
+	args.lua.ensureExtraCapacity(40)
+
+	val root = createNode(args.lua, mergedParams.root, mergedParams.mappedParameters, blackboard, scripts, functions, handles)
+	handles.add(root)
+
+	check(args.lua.loadGlobal("BehaviorState") == LuaType.FUNCTION) { "Global BehaviorState is not a Lua function" }
+
+	args.lua.push(blackboard)
+	args.lua.push(root)
+
+	args.lua.call(2, 1)
+
+	handles.forEach { it.close() }
+	return 1
+}
+
+private val script by lazy { LuaThread.loadInternalScript("behavior") }
+
+fun provideBehaviorBindings(lua: LuaThread) {
+	lua.pushTable()
+	lua.dup()
+	lua.storeGlobal("behavior")
+
+	lua.setTableValue("behavior", ::createBehaviorTree)
+
+	lua.pop()
+
+	lua.load(script, "@/internal/behavior.lua")
+	lua.call()
+}

src/main/kotlin/ru/dbotthepony/kstarbound/lua/userdata/NodeParameterType.kt

@@ -1,4 +1,4 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
+package ru.dbotthepony.kstarbound.lua.userdata
 
 import ru.dbotthepony.kstarbound.json.builder.IStringSerializable
 

src/main/kotlin/ru/dbotthepony/kstarbound/world/Direction.kt

@@ -37,5 +37,25 @@ enum class Direction(val normal: Vector2d, override val jsonName: String, val nu
 				return RIGHT
 			}
 		}
+
+		fun valueOf(value: Long): Direction? {
+			if (value == 0L) {
+				return null
+			} else if (value < 0L) {
+				return LEFT
+			} else {
+				return RIGHT
+			}
+		}
+
+		fun valueOf(value: Double): Direction? {
+			if (value == 0.0) {
+				return null
+			} else if (value < 0.0) {
+				return LEFT
+			} else {
+				return RIGHT
+			}
+		}
 	}
 }

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/Animator.kt

@@ -693,12 +693,12 @@ class Animator() {
 		return group in rotationGroups
 	}
 
-	fun rotationGroups(): Collection<String> {
-		return Collections.unmodifiableCollection(rotationGroups.keys)
+	fun rotationGroups(): Set<String> {
+		return Collections.unmodifiableSet(rotationGroups.keys)
 	}
 
-	fun transformationGroups(): Collection<String> {
-		return Collections.unmodifiableCollection(transformationGroups.keys)
+	fun transformationGroups(): Set<String> {
+		return Collections.unmodifiableSet(transformationGroups.keys)
 	}
 
 	fun hasTransformationGroup(group: String): Boolean {
@@ -757,8 +757,8 @@ class Animator() {
 		return emitter in particleEmitters
 	}
 
-	fun particleEmitters(): Collection<String> {
-		return Collections.unmodifiableCollection(particleEmitters.keys)
+	fun particleEmitters(): Set<String> {
+		return Collections.unmodifiableSet(particleEmitters.keys)
 	}
 
 	fun setParticleEmitterActive(emitter: String, state: Boolean = true) {
@@ -792,8 +792,8 @@ class Animator() {
 		get.burstEvent.trigger()
 	}
 
-	fun lights(): Collection<String> {
-		return Collections.unmodifiableCollection(lights.keys)
+	fun lights(): Set<String> {
+		return Collections.unmodifiableSet(lights.keys)
 	}
 
 	fun hasLight(light: String): Boolean {
@@ -827,8 +827,8 @@ class Animator() {
 		get.pointAngle = angle
 	}
 
-	fun sounds(): Collection<String> {
-		return Collections.unmodifiableCollection(sounds.keys)
+	fun sounds(): Set<String> {
+		return Collections.unmodifiableSet(sounds.keys)
 	}
 
 	fun hasSound(sound: String): Boolean {
@@ -881,8 +881,8 @@ class Animator() {
 		get.signals.push(SoundSignal.STOP_ALL)
 	}
 
-	fun effects(): Collection<String> {
-		return Collections.unmodifiableCollection(effects.keys)
+	fun effects(): Set<String> {
+		return Collections.unmodifiableSet(effects.keys)
 	}
 
 	fun hasEffect(effect: String): Boolean {
@@ -894,8 +894,12 @@ class Animator() {
 		get.enabled.accept(state)
 	}
 
-	fun parts(): Collection<String> {
-		return Collections.unmodifiableCollection(parts.keys)
+	fun parts(): Set<String> {
+		return Collections.unmodifiableSet(parts.keys)
+	}
+
+	fun hasPart(part: String): Boolean {
+		return part in parts
 	}
 
 	fun partPoint(part: String, property: String): Vector2d? {

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/AbstractBehaviorNode.kt

@@ -1,156 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import com.google.common.collect.ImmutableList
-import com.google.gson.JsonArray
-import com.google.gson.JsonObject
-import com.google.gson.JsonPrimitive
-import ru.dbotthepony.kommons.gson.contains
-import ru.dbotthepony.kommons.gson.get
-import ru.dbotthepony.kommons.gson.stream
-import ru.dbotthepony.kstarbound.Registries
-import ru.dbotthepony.kstarbound.Starbound
-import ru.dbotthepony.kstarbound.defs.actor.behavior.CompositeNodeType
-import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameterValue
-import ru.dbotthepony.kstarbound.fromJsonFast
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-import ru.dbotthepony.kstarbound.util.valueOf
-
-abstract class AbstractBehaviorNode {
-	enum class Status(val asBoolean: Boolean?) {
-		INVALID(null),
-		SUCCESS(true),
-		FAILURE(false),
-		RUNNING(null)
-	}
-
-	var calls = 0
-		protected set
-
-	abstract fun run(delta: Double, state: BehaviorState): Status
-	abstract fun reset()
-
-	fun runAndReset(delta: Double, state: BehaviorState): Status {
-		val status = run(delta, state)
-
-		if (status != Status.RUNNING)
-			reset()
-
-		return status
-	}
-
-	companion object {
-		fun replaceBehaviorTag(parameter: NodeParameterValue, treeParameters: Map<String, NodeParameterValue>): NodeParameterValue {
-			var str: String? = null
-
-			if (parameter.key != null)
-				str = parameter.key
-
-			// original engine does this, and i don't know why this make any sense
-			else if (parameter.value is JsonPrimitive && parameter.value.isString)
-				str = parameter.value.asString
-
-			if (!str.isNullOrEmpty()) {
-				if (str.first() == '<' && str.last() == '>') {
-					val treeKey = str.substring(1, str.length - 1)
-					val param = treeParameters[treeKey]
-
-					if (param != null) {
-						return param
-					} else {
-						throw NoSuchElementException("No parameter specified for tag '$treeKey'")
-					}
-				}
-			}
-
-			return parameter
-		}
-
-		fun replaceOutputBehaviorTag(output: String?, treeParameters: Map<String, NodeParameterValue>): String? {
-			if (output == null) {
-				return null
-			} else if (output.first() == '<' && output.last() == '>') {
-				val replacement = treeParameters[output.substring(1, output.length - 1)] ?: throw NoSuchElementException("No parameter specified for tag '$output'")
-
-				if (replacement.key != null)
-					return replacement.key
-				else if (replacement.value is JsonPrimitive && replacement.value.isString)
-					return replacement.value.asString
-				else
-					return null
-			} else {
-				return output
-			}
-		}
-
-		fun create(data: JsonObject, treeParameters: Map<String, NodeParameterValue>, tree: BehaviorTree): AbstractBehaviorNode {
-			val type = BehaviorNodeType.entries.valueOf(data["type"].asString)
-			val name = data["name"].asString
-			val parameterConfig = data.get("parameters") { JsonObject() }
-
-			if (type == BehaviorNodeType.MODULE) {
-				// merge in module parameters to a copy of the treeParameters to propagate
-				// tree parameters into the sub-tree, but allow modules to override
-				val moduleParameters = LinkedHashMap(treeParameters)
-
-				for ((k, v) in parameterConfig.entrySet()) {
-					moduleParameters[k] = replaceBehaviorTag(Starbound.gson.fromJsonFast(v, NodeParameterValue::class.java), treeParameters)
-				}
-
-				val module = BehaviorTree(tree.blackboard, Registries.behavior.getOrThrow(name).value, moduleParameters)
-				tree.scripts.addAll(module.scripts)
-				tree.functions.addAll(module.functions)
-				return module.root
-			}
-
-			val parameters = LinkedHashMap(Registries.behaviorNodes.getOrThrow(name).value.properties)
-
-			for ((k, v) in parameters.entries) {
-				if (k in parameterConfig) {
-					parameters[k] = v.copy(value = replaceBehaviorTag(Starbound.gson.fromJsonFast(parameterConfig[k], NodeParameterValue::class.java), treeParameters))
-				} else {
-					val replaced = replaceBehaviorTag(v.value, treeParameters)
-
-					if (replaced != v.value) {
-						parameters[k] = v.copy(value = replaced)
-					}
-				}
-			}
-
-			when (type) {
-				BehaviorNodeType.ACTION -> {
-					tree.functions.add(name)
-
-					val outputConfig = data.get("output") { JsonObject() }
-					val output = LinkedHashMap(Registries.behaviorNodes.getOrThrow(name).value.output)
-
-					for ((k, v) in output.entries) {
-						val replaced = replaceOutputBehaviorTag(outputConfig[k]?.asString ?: v.key, treeParameters)
-
-						if (replaced != v.key) {
-							output[k] = v.copy(key = replaced)
-						}
-					}
-
-					return ActionNode(name, parameters, output)
-				}
-
-				BehaviorNodeType.DECORATOR -> {
-					tree.functions.add(name)
-					val sacrifice = create(data["child"] as JsonObject, treeParameters, tree)
-					return DecoratorNode(name, parameters, sacrifice)
-				}
-
-				BehaviorNodeType.COMPOSITE -> {
-					val children = data.get("children") { JsonArray() }
-						.stream()
-						.map { create(it as JsonObject, treeParameters, tree) }
-						.collect(ImmutableList.toImmutableList())
-
-					return CompositeNodeType.entries.valueOf(name).factory(parameters, children)
-				}
-
-				BehaviorNodeType.MODULE -> throw RuntimeException()
-			}
-		}
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/ActionNode.kt

@@ -1,77 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import org.apache.logging.log4j.LogManager
-import org.classdump.luna.Table
-import org.classdump.luna.exec.CallPausedException
-import org.classdump.luna.lib.CoroutineLib
-import org.classdump.luna.runtime.Coroutine
-import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeOutput
-import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameter
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-
-class ActionNode(val name: String, val parameters: Map<String, NodeParameter>, val outputs: Map<String, NodeOutput>) : AbstractBehaviorNode() {
-	private var coroutine: Coroutine? = null
-	private val nodeID = BehaviorState.NODE_GARBAGE_INDEX.getAndIncrement()
-
-	override fun run(delta: Double, state: BehaviorState): Status {
-		calls++
-		var coroutine = coroutine
-		var firstTime = false
-
-		if (coroutine == null) {
-			firstTime = true
-
-			val fn = state.functions[name] ?: throw RuntimeException("How? $name")
-
-			coroutine = state.lua.call(CoroutineLib.create(), fn)[0] as Coroutine
-		}
-
-		try {
-			val result = if (firstTime) {
-				val parameters = state.blackboard.parameters(parameters, this)
-				state.lua.call(CoroutineLib.resume(), coroutine, parameters, state.blackboard, nodeID, delta)
-			} else {
-				state.lua.call(CoroutineLib.resume(), coroutine, delta)
-			}
-
-			val coroutineStatus = result[0] as Boolean
-
-			if (!coroutineStatus) {
-				LOGGER.warn("Behavior ActionNode '$name' failed: ${result[1]}")
-				return Status.FAILURE
-			}
-
-			if (result.size == 1) {
-				return Status.RUNNING
-			}
-
-			val nodeStatus = result.getOrNull(1) as? Boolean ?: false
-			val nodeExtra = result.getOrNull(2) as? Table
-
-			if (nodeExtra != null) {
-				state.blackboard.setOutput(this, nodeExtra)
-			}
-
-			if (!nodeStatus) {
-				return Status.FAILURE
-			} else {
-				return Status.SUCCESS
-			}
-		} catch (err: CallPausedException) {
-			LOGGER.error("Behavior ActionNode '$name' called blocking code, which initiated pause. This is not supported.")
-			return Status.FAILURE
-		}
-	}
-
-	override fun reset() {
-		coroutine = null
-	}
-
-	override fun toString(): String {
-		return "ActionNode[$calls / $name, parameters=$parameters, outputs=$outputs, coroutine=$coroutine]"
-	}
-
-	companion object {
-		private val LOGGER = LogManager.getLogger()
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/BehaviorTree.kt

@@ -1,31 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import ru.dbotthepony.kstarbound.defs.actor.behavior.BehaviorDefinition
-import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameterValue
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-
-class BehaviorTree(val blackboard: Blackboard, val data: BehaviorDefinition, overrides: Map<String, NodeParameterValue> = mapOf()) : AbstractBehaviorNode() {
-	val scripts = HashSet(data.scripts)
-	val functions = HashSet<String>()
-
-	val root: AbstractBehaviorNode
-
-	init {
-		if (overrides.isEmpty()) {
-			root = create(data.root, data.mappedParameters, this)
-		} else {
-			val parameters = LinkedHashMap(data.mappedParameters)
-			parameters.putAll(overrides)
-			root = create(data.root, parameters, this)
-		}
-	}
-
-	override fun run(delta: Double, state: BehaviorState): Status {
-		return root.run(delta, state)
-	}
-
-	override fun reset() {
-		root.reset()
-	}
-}
-

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/Blackboard.kt

@@ -1,194 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import com.google.gson.JsonArray
-import com.google.gson.JsonElement
-import com.google.gson.JsonNull
-import com.google.gson.JsonPrimitive
-import org.classdump.luna.ByteString
-import org.classdump.luna.Table
-import org.classdump.luna.Userdata
-import org.classdump.luna.impl.ImmutableTable
-import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameter
-import ru.dbotthepony.kstarbound.lua.LuaEnvironment
-import ru.dbotthepony.kstarbound.lua.from
-import ru.dbotthepony.kstarbound.lua.get
-import ru.dbotthepony.kstarbound.lua.luaFunction
-import ru.dbotthepony.kstarbound.lua.set
-import ru.dbotthepony.kstarbound.util.valueOf
-import java.util.EnumMap
-import java.util.HashSet
-import kotlin.collections.HashMap
-
-/**
- * Blackboard (Greenboard, if you will) for tracking inputs and outputs of function nodes in behavior tree.
- *
- * While this is obviously flawed, and inputs/outputs should _generally_ be stored inside nodes themselves
- * (since we create/clone behavior tree each time we make AI actor), this class is exposed to Lua scripts,
- * so we must keep this class
- *
- * On side note, this architecture also employs global inputs/outputs of functions, hence you can't make
- * an actual functional tree out of behavior nodes (because variable flow is global, and not local, so you
- * can't have, per say, function "calculate sin out of x" because both input "x" and "sin result" are
- * defined as global variables).
- * Bravo, Chucklefish.
- */
-class Blackboard(val lua: LuaEnvironment) : Userdata<Blackboard>() {
-	private val board = EnumMap<NodeParameterType, HashMap<String, Any>>(NodeParameterType::class.java)
-	private val input = EnumMap<NodeParameterType, HashMap<String, ArrayList<Pair<String, Table>>>>(NodeParameterType::class.java)
-	private val parameters = HashMap<Any, Table>()
-	// key -> list of Lua tables and their indices
-	private val vectorNumberInput = HashMap<String, HashSet<Pair<Any, Table>>>()
-	private var ephemeral = HashSet<Pair<NodeParameterType, String>>()
-
-	init {
-		for (v in NodeParameterType.entries) {
-			board[v] = HashMap()
-			input[v] = HashMap()
-		}
-	}
-
-	operator fun set(type: NodeParameterType, key: String, value: Any?) {
-		if (value == null) {
-			board[type]!!.remove(key)
-		} else {
-			board[type]!![key] = value
-		}
-
-		val input = input[type]!![key]
-
-		if (input != null) {
-			for ((index, table) in input) {
-				table[index] = value
-			}
-		}
-
-		// dumb special case for setting number outputs to vec2 inputs
-		if (type == NodeParameterType.NUMBER) {
-			val mappings = vectorNumberInput[key]
-
-			if (mappings != null) {
-				for ((index, table) in mappings) {
-					table[index] = value
-				}
-			}
-		}
-	}
-
-	operator fun get(type: NodeParameterType, key: String): Any? {
-		return board[type]!![key]
-	}
-
-	fun parameters(parameters: Map<String, NodeParameter>, nodeID: Any): Table {
-		val get = this.parameters[nodeID]
-
-		if (get != null)
-			return get
-
-		val table = lua.newTable()
-
-		for ((name, parameter) in parameters.entries) {
-			if (parameter.value.key != null) {
-				val typeInput = input[parameter.type]!!.computeIfAbsent(parameter.value.key) { ArrayList() }
-				typeInput.add(name to table)
-				table[name] = this[parameter.type, parameter.value.key]
-			} else {
-				val value = parameter.value.value ?: JsonNull.INSTANCE
-
-				if (value.isJsonNull)
-					continue
-
-				// dumb special case for allowing a vec2 of blackboard number keys
-				if (parameter.type == NodeParameterType.VEC2) {
-					if (value !is JsonArray)
-						throw IllegalArgumentException("Expected '$name' to be VEC2 array, got $value")
-
-					val vector = lua.newTable(value.size(), 0)
-
-					for ((i, element) in value.withIndex()) {
-						if (element is JsonPrimitive && element.isString) {
-							vectorNumberInput.computeIfAbsent(element.asString) { HashSet() }.add(i + 1L to vector)
-							vector[i + 1L] = this[NodeParameterType.NUMBER, element.asString]
-						} else {
-							vector[i + 1L] = lua.from(element)
-						}
-					}
-
-					table[name] = vector
-				} else {
-					table[name] = lua.from(value)
-				}
-			}
-		}
-
-		this.parameters[nodeID] = table
-		return table
-	}
-
-	fun setOutput(node: ActionNode, output: Table) {
-		for ((tableKey, out) in node.outputs) {
-			if (out.key != null) {
-				this[out.type, out.key] = output[tableKey]
-
-				if (out.ephemeral) {
-					ephemeral.add(out.type to out.key)
-				}
-			}
-		}
-	}
-
-	fun takeEphemerals(): Set<Pair<NodeParameterType, String>> {
-		val ephemeral = ephemeral
-		this.ephemeral = HashSet()
-		return ephemeral
-	}
-
-	fun clearEphemerals(ephemerals: Collection<Pair<NodeParameterType, String>>) {
-		for ((type, key) in ephemerals) {
-			this[type, key] = null
-		}
-	}
-
-	override fun getMetatable(): Table {
-		return Companion.metatable
-	}
-
-	override fun setMetatable(mt: Table?): Table {
-		throw UnsupportedOperationException()
-	}
-
-	override fun getUserValue(): Blackboard {
-		return this
-	}
-
-	override fun setUserValue(value: Blackboard?): Blackboard {
-		throw UnsupportedOperationException()
-	}
-
-	companion object {
-		private val metatable: ImmutableTable
-		private fun __index() = metatable
-
-		init {
-			val builder = ImmutableTable.Builder()
-				.add("get", luaFunction { self: Blackboard, type: ByteString, key: ByteString ->
-					returnBuffer.setTo(self[NodeParameterType.entries.valueOf(type.decode()), key.decode()])
-				})
-				.add("set", luaFunction { self: Blackboard, type: ByteString, key: ByteString, value: Any? ->
-					self[NodeParameterType.entries.valueOf(type.decode()), key.decode()] = value
-				})
-
-			for (type in NodeParameterType.entries) {
-				builder.add("get${type.funcName}", luaFunction { self: Blackboard, key: ByteString ->
-					returnBuffer.setTo(self[type, key.decode()])
-				})
-
-				builder.add("set${type.funcName}", luaFunction { self: Blackboard, key: ByteString, value: Any? ->
-					self[type, key.decode()] = value
-				})
-			}
-
-			builder.add("__index", luaFunction { _: Any?, index: Any -> returnBuffer.setTo(__index()[index]) })
-			metatable = builder.build()
-		}
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/DecoratorNode.kt

@@ -1,110 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import org.apache.logging.log4j.LogManager
-import org.classdump.luna.ByteString
-import org.classdump.luna.Table
-import org.classdump.luna.exec.CallPausedException
-import org.classdump.luna.lib.CoroutineLib
-import org.classdump.luna.runtime.Coroutine
-import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameter
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-import java.util.concurrent.atomic.AtomicLong
-
-class DecoratorNode(val name: String, val parameters: Map<String, NodeParameter>, val child: AbstractBehaviorNode) : AbstractBehaviorNode() {
-	private var coroutine: Coroutine? = null
-	private val nodeID = BehaviorState.NODE_GARBAGE_INDEX.getAndIncrement()
-
-	override fun run(delta: Double, state: BehaviorState): Status {
-		calls++
-		var coroutine = coroutine
-
-		if (coroutine == null) {
-			val parameters = state.blackboard.parameters(parameters, this)
-			val fn = state.functions[name] ?: throw RuntimeException("How? $name")
-
-			try {
-				coroutine = state.lua.call(CoroutineLib.create(), fn)[0] as Coroutine
-				val result = state.lua.call(CoroutineLib.resume(), coroutine, parameters, state.blackboard, nodeID)
-				val status = result[0] as Boolean
-
-				if (!status) {
-					LOGGER.warn("Behavior DecoratorNode '$name' failed: ${result[1]}")
-					return Status.FAILURE
-				}
-
-				if (result.size == 1) {
-					val coroutineStatus = state.lua.call(CoroutineLib.status(), coroutine)[0] as String
-
-					if (coroutineStatus == "dead") {
-						// quite unexpected, but whatever
-						return Status.SUCCESS
-					} else {
-						this.coroutine = coroutine
-					}
-				} else {
-					val nodeStatus = result.getOrNull(1) as? Boolean ?: false
-					// val nodeExtra = result.getOrNull(3) as? Table
-					return if (nodeStatus) Status.SUCCESS else Status.FAILURE
-				}
-			} catch (err: CallPausedException) {
-				LOGGER.error("Behavior DecoratorNode '$name' called blocking code, which initiated pause. This is not supported.")
-				return Status.FAILURE
-			}
-		}
-
-		// decorator runs its child on yield and is resumed with the child's status on success or failure
-		var status = Status.RUNNING
-
-		while (status == Status.RUNNING) {
-			val childStatus = child.runAndReset(delta, state)
-
-			if (childStatus == Status.SUCCESS || childStatus == Status.FAILURE) {
-				try {
-					val result = state.lua.call(CoroutineLib.resume(), coroutine, childStatus.asBoolean)
-					val execStatus = result[0] as Boolean
-
-					if (!execStatus && result.size >= 2) {
-						LOGGER.warn("Behavior DecoratorNode '$name' failed: ${result[1]}")
-					}
-
-					if (result.size == 1) {
-						// another yield OR unexpected return?
-						val coroutineStatus = state.lua.call(CoroutineLib.status(), coroutine)[0] as String
-
-						if (coroutineStatus == "dead") {
-							this.coroutine = null
-							status = Status.SUCCESS
-						} else
-							status = Status.RUNNING
-					} else {
-						// yield or return with status
-						val nodeStatus = result.getOrNull(1) as? Boolean ?: false
-						// val nodeExtra = result.getOrNull(3) as? Table
-
-						status = if (nodeStatus) Status.SUCCESS else Status.FAILURE
-						this.coroutine = null
-					}
-				} catch (err: CallPausedException) {
-					LOGGER.error("Behavior DecoratorNode '$name' called blocking code on children return, which initiated pause. This is not supported.")
-					status = Status.FAILURE
-				}
-			} else {
-				return Status.RUNNING
-			}
-		}
-
-		return status
-	}
-
-	override fun reset() {
-		coroutine = null
-	}
-
-	override fun toString(): String {
-		return "DecoratorNode[$calls / $name, coroutine=$coroutine, parameters=$parameters, children=$child]"
-	}
-
-	companion object {
-		private val LOGGER = LogManager.getLogger()
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/DynamicNode.kt

@@ -1,38 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import com.google.common.collect.ImmutableList
-import org.classdump.luna.runtime.ExecutionContext
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-
-class DynamicNode(val children: ImmutableList<AbstractBehaviorNode>) : AbstractBehaviorNode() {
-	private var index = 0
-
-	override fun run(delta: Double, state: BehaviorState): Status {
-		calls++
-		for ((i, node) in children.withIndex()) {
-			val status = node.runAndReset(delta, state)
-
-			if (status == Status.FAILURE && index == i)
-				index++
-			else if (i < index && (status == Status.SUCCESS || status == Status.FAILURE)) {
-				node.reset()
-				index = i
-			}
-
-			if (status == Status.SUCCESS || index >= children.size) {
-				return status
-			}
-		}
-
-		return Status.RUNNING
-	}
-
-	override fun toString(): String {
-		return "DynamicNode[$calls / ${children.size}, index=$index, current=${children.getOrNull(index)}]"
-	}
-
-	override fun reset() {
-		children.forEach { it.reset() }
-		index = 0
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/ParallelNode.kt

@@ -1,70 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import com.google.common.collect.ImmutableList
-import com.google.gson.JsonPrimitive
-import org.classdump.luna.runtime.ExecutionContext
-import ru.dbotthepony.kstarbound.defs.actor.behavior.NodeParameter
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-
-class ParallelNode(parameters: Map<String, NodeParameter>, val children: ImmutableList<AbstractBehaviorNode>) : AbstractBehaviorNode() {
-	val successLimit: Int
-	val failLimit: Int
-
-	init {
-		val value = (parameters["success"]?.value?.value as? JsonPrimitive)?.asInt ?: -1
-
-		if (value == -1) {
-			successLimit = children.size
-		} else {
-			successLimit = value
-		}
-	}
-
-	init {
-		val value = (parameters["fail"]?.value?.value as? JsonPrimitive)?.asInt ?: -1
-
-		if (value == -1) {
-			failLimit = children.size
-		} else {
-			failLimit = value
-		}
-	}
-
-	private var lastFailed = -1
-	private var lastSucceeded = -1
-
-	override fun run(delta: Double, state: BehaviorState): Status {
-		calls++
-		var failed = 0
-		var succeeded = 0
-
-		for (node in children) {
-			val status = node.runAndReset(delta, state)
-
-			if (status == Status.SUCCESS)
-				succeeded++
-			else if (status == Status.FAILURE)
-				failed++
-
-			if (succeeded >= successLimit || failed >= failLimit) {
-				lastFailed = failed
-				lastSucceeded = succeeded
-				return if (succeeded >= successLimit) Status.SUCCESS else Status.FAILURE
-			}
-		}
-
-		lastFailed = failed
-		lastSucceeded = succeeded
-		return Status.RUNNING
-	}
-
-	override fun toString(): String {
-		return "ParallelNode[$calls / children=${children.size}, successLimit=$successLimit, failLimit=$failLimit, lastFailed=$lastFailed, lastSucceeded=$lastSucceeded]"
-	}
-
-	override fun reset() {
-		children.forEach { it.reset() }
-		lastSucceeded = -1
-		lastFailed = -1
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/RandomizeNode.kt

@@ -1,33 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import com.google.common.collect.ImmutableList
-import org.classdump.luna.runtime.ExecutionContext
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-
-class RandomizeNode(val children: ImmutableList<AbstractBehaviorNode>) : AbstractBehaviorNode() {
-	var index = -1
-
-	override fun run(delta: Double, state: BehaviorState): Status {
-		calls++
-
-		if (index == -1 && children.isNotEmpty())
-			index = state.lua.random.nextInt(children.size)
-
-		if (index == -1)
-			return Status.FAILURE
-
-		return children[index].runAndReset(delta, state)
-	}
-
-	override fun toString(): String {
-		if (index == -1)
-			return "RandomizeNode[$calls / ${children.size}, not chosen]"
-		else
-			return "RandomizeNode[$calls / ${children.size}, ${children[index]}]"
-	}
-
-	override fun reset() {
-		children.forEach { it.reset() }
-		index = -1
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/behavior/SequenceNode.kt

@@ -1,37 +0,0 @@
-package ru.dbotthepony.kstarbound.world.entities.behavior
-
-import com.google.common.collect.ImmutableList
-import org.classdump.luna.runtime.ExecutionContext
-import ru.dbotthepony.kstarbound.lua.userdata.BehaviorState
-
-class SequenceNode(val children: ImmutableList<AbstractBehaviorNode>, val isSelector: Boolean) : AbstractBehaviorNode() {
-	private var index = 0
-
-	override fun run(delta: Double, state: BehaviorState): Status {
-		calls++
-
-		while (index < children.size) {
-			val child = children[index]
-			val status = child.runAndReset(delta, state)
-
-			if ((isSelector && status == Status.SUCCESS || !isSelector && status == Status.FAILURE) || status == Status.RUNNING)
-				return status
-
-			index++
-		}
-
-		return if (isSelector) Status.FAILURE else Status.SUCCESS
-	}
-
-	override fun toString(): String {
-		if (isSelector)
-			return "SelectorNode[$calls / ${children.size}, index=$index, current=${children.getOrNull(index)}]"
-		else
-			return "SequenceNode[$calls / ${children.size}, index=$index, current=${children.getOrNull(index)}]"
-	}
-
-	override fun reset() {
-		children.forEach { it.reset() }
-		index = 0
-	}
-}

src/main/kotlin/ru/dbotthepony/kstarbound/world/entities/tile/WorldObject.kt

@@ -226,6 +226,10 @@ open class WorldObject(val config: Registry.Entry<ObjectDefinition>) : TileEntit
 		return path.get(mergedJson.value, orElse)
 	}
 
+	fun lookupPropertyOrNull(path: JsonPath): JsonElement? {
+		return path.find(mergedJson.value)
+	}
+
 	fun lookupProperty(path: String, orElse: () -> JsonElement): JsonElement {
 		return mergedJson.value[path] ?: orElse.invoke()
 	}
@@ -234,6 +238,10 @@ open class WorldObject(val config: Registry.Entry<ObjectDefinition>) : TileEntit
 		return mergedJson.value[path] ?: JsonNull.INSTANCE
 	}
 
+	fun lookupPropertyOrNull(path: String): JsonElement? {
+		return mergedJson.value[path]
+	}
+
 	init {
 		networkGroup.upstream.add(uniqueID)
 	}

src/main/resources/scripts/behavior.lua

@@ -0,0 +1,674 @@
+
+-- TODO: Incomplete.
+
+-- Blackboard
+local blackboardPrototype = {}
+blackboardPrototype.__index = blackboardPrototype
+
+local nodeParametersTypes = {
+	{'json', 'Json'},
+	{'entity', 'Entity'},
+	{'position', 'Position'},
+	{'vec2', 'Vec2'},
+	{'number', 'Number'},
+	{'bool', 'Bool'},
+	{'list', 'List'},
+	{'table', 'Table'},
+	{'string', 'String'},
+}
+
+local mappedParameterTypes = {}
+
+for i, data in ipairs(nodeParametersTypes) do
+	mappedParameterTypes[i] = i
+	mappedParameterTypes[data[1]] = i
+end
+
+function blackboardPrototype:ctor()
+	self.board = {}
+	self.input = {}
+	self._parameters = {}
+	self.vectorNumberInput = {}
+	self.ephemeral = {}
+
+	for i, data in ipairs(nodeParametersTypes) do
+		self.board[data[1]] = {}
+		self.input[data[1]] = {}
+		self.ephemeral[i] = {}
+
+		self.board[i] = self.board[data[1]]
+		self.input[i] = self.input[data[1]]
+	end
+
+	return self
+end
+
+local function blackboardSet(self, t, key, value)
+	self.board[t][key] = value
+
+	local input = self.input[t][key]
+
+	if input then
+		for _, pair in ipairs(input) do
+			local index = pair[1]
+			local tab = pair[2]
+			tab[index] = value
+		end
+	end
+
+	-- dumb special case for setting number outputs to vec2 inputs
+	if t == 5 then
+		local mappings = self.vectorNumberInput[key]
+
+		if mappings then
+			for _, pair in pairs(input) do
+				local index = pair[1]
+				local tab = pair[2]
+				tab[index] = value
+			end
+		end
+	end
+end
+
+function blackboardPrototype:set(t, key, value)
+	blackboardSet(self, mappedParameterTypes[t], key, value)
+end
+
+function blackboardPrototype:setRaw(t, key, value)
+	blackboardSet(self, t, key, value)
+end
+
+function blackboardPrototype:get(t, key)
+	return self.board[t][key]
+end
+
+for i, data in ipairs(nodeParametersTypes) do
+	blackboardPrototype['get' .. data[2]] = function(self, key)
+		return self.board[i][key]
+	end
+
+	blackboardPrototype['set' .. data[2]] = function(self, key, value)
+		blackboardSet(self, i, key, value)
+	end
+end
+
+function blackboardPrototype:parameters(parameters, nodeID)
+	local tab = self._parameters[nodeID]
+	if tab then return tab end
+	tab = {}
+
+	for parameterName, parameter in pairs(parameters) do
+		local t = assert(mappedParameterTypes[parameter.type])
+		local pKey = parameter.key
+		local pValue = parameter.value
+
+		if pKey then
+			local typeInput = self.input[t][pKey]
+
+			if not typeInput then
+				typeInput = {}
+				self.input[i][pKey] = typeInput
+			end
+
+			table.insert(typeInput, {parameterName, tab})
+			tab[parameterName] = self.board[t][pKey]
+		elseif pValue then
+			if t == 4 then -- vec2
+				-- dumb special case for allowing a vec2 of blackboard number keys
+				if type(pValue) ~= 'table' then
+					error(string.format('parameter %s of type %s for node %s has has non-table value: %s', parameterName, parameter.type, nodeID, type(pValue)))
+				end
+
+				local vector = {}
+
+				for i, vValue in ipairs(pValue) do
+					if type(vValue) == 'string' then
+						-- vector part with symbolic reference
+						local typeInput = self.vectorNumberInput[vValue]
+
+						if not typeInput then
+							typeInput = {}
+							self.vectorNumberInput[vValue] = typeInput
+						end
+
+						table.insert(typeInput, {i, vector})
+						vector[i] = self.board[5][key] -- number
+					else
+						vector[i] = vValue
+					end
+				end
+
+				tab[parameterName] = vector
+			else
+				tab[parameterName] = pValue
+			end
+		else
+			error(string.format('parameter %s of type %s for node %s has no key nor value', parameterName, parameter.type, nodeID))
+		end
+	end
+
+	self._parameters[nodeID] = tab
+	return tab
+end
+
+function blackboardPrototype:setOutput(node, output)
+	for key, out in pairs(node.outputs) do
+		if out.key then
+			local t = out.type
+			blackboardSet(self, t, out.key, output[key])
+
+			if out.ephemeral then
+				self.ephemeral[t][out.key] = true
+			end
+		end
+	end
+end
+
+function blackboardPrototype:takeEphemerals()
+	local value = self.ephemeral
+	self.ephemeral = {}
+
+	for i, _ in ipairs(nodeParametersTypes) do
+		self.ephemeral[i] = {}
+	end
+
+	return value
+end
+
+function blackboardPrototype:clearEphemerals(ephemerals)
+	for i, keys in ipairs(ephemerals) do
+		for key in pairs(keys) do
+			blackboardSet(self, i, key, nil)
+		end
+	end
+end
+
+local function Blackboard()
+	return setmetatable({}, blackboardPrototype):ctor()
+end
+
+-- //// Blackboard
+
+local SUCCESS = true
+local FAILURE = false
+local RUNNING = nil
+local nextNodeID = 0
+
+local function runAndReset(self, ...)
+	local status = self:run(...)
+
+	if status ~= RUNNING then
+		self:reset()
+	end
+
+	return status
+end
+
+-- ActionNode
+
+local actionNode = {}
+actionNode.__index = actionNode
+
+function actionNode:ctor(name, parameters, outputs)
+	self.name = name
+	self.parameters = parameters
+	self.outputs = outputs
+	self.calls = 0
+	self.nodeID = nextNodeID
+	nextNodeID = nextNodeID + 1
+
+	return self
+end
+
+function actionNode:bake()
+	self.callable = _G[self.name]
+
+	if type(callable) ~= 'function' then
+		error('expected global ' .. self.name .. ' to be a function, but got ' .. type(callable))
+	end
+end
+
+do
+	local create = coroutine.create
+	local resume = coroutine.resume
+	local status = coroutine.status
+
+	function actionNode:run(delta, blackboard)
+		self.calls = self.calls + 1
+		local status, nodeStatus, nodeExtra
+
+		if not self.coroutine then
+			self.coroutine = create(self.callable)
+			local parameters = blackboard:parameters(self.parameters, self)
+			status, nodeStatus, nodeExtra = resume(self.coroutine, parameters, blackboard, self.nodeID, delta)
+		else
+			status, nodeStatus, nodeExtra = resume(self.coroutine, delta)
+		end
+
+		if not status then
+			sb.logError('Behavior ActionNode %q failed: %s', self.name, nodeStatus)
+			return FAILURE
+		end
+
+		if result == nil then
+			return RUNNING
+		end
+
+		if nodeExtra ~= nil then
+			blackboard:setOutput(self, nodeExtra)
+		end
+
+		if nodeStatus then
+			return SUCCESS
+		else
+			return FAILURE
+		end
+	end
+end
+
+function actionNode:reset()
+	self.coroutine = nil
+end
+
+function actionNode:__tostring()
+	return string.format('ActionNode[%q / %d / %s]', self.name, self.calls, tostring(self.coroutine or 'none'))
+end
+
+function ActionNode(...)
+	return setmetatable({}, actionNode):ctor(...)
+end
+
+-- //// ActionNode
+
+-- DecoratorNode
+
+local decoratorNode = {}
+decoratorNode.__index = decoratorNode
+
+function decoratorNode:ctor(name, parameters, child)
+	self.name = name
+	self.parameters = parameters
+	self.child = child
+	self.calls = 0
+	self.nodeID = nextNodeID
+	nextNodeID = nextNodeID + 1
+
+	return self
+end
+
+function decoratorNode:bake()
+	self.callable = _G[self.name]
+
+	if type(callable) ~= 'function' then
+		error('expected global ' .. self.name .. ' to be a function, but got ' .. type(callable))
+	end
+
+	self.child:bake()
+end
+
+do
+	local create = coroutine.create
+	local resume = coroutine.resume
+	local coroutine_status = coroutine.status
+
+	function decoratorNode:run(delta, blackboard)
+		self.calls = self.calls + 1
+
+		if not self.coroutine then
+			local parameters = blackboard:parameters(self.parameters, self)
+			local coroutine = create(self.callable)
+			local status, nodeStatus = resume(coroutine, parameters, blackboard, self.nodeID, delta)
+
+			if not status then
+				sb.logError('Behavior DecoratorNode %q failed: %s', self.name, nodeStatus)
+				return FAILURE
+			end
+
+			if nodeStatus == nil then
+				local s = coroutine_status(coroutine)
+
+				if s == 'dead' then
+					-- quite unexpected, but whatever
+					return SUCCESS
+				else
+					self.coroutine = coroutine
+				end
+			elseif nodeStatus then
+				return SUCCESS
+			else
+				return FAILURE
+			end
+		end
+
+		while true do
+			local childStatus = runAndReset(self.child, delta, blackboard)
+
+			if childStatus == RUNNING then
+				return RUNNING
+			end
+
+			local status, nodeStatus = resume(self.coroutine, childStatus)
+
+			if not status then
+				sb.logError('Behavior DecoratorNode %q failed: %s', self.name, nodeStatus)
+				return FAILURE
+			end
+
+			if nodeStatus == nil then
+				-- another yield OR unexpected return?
+
+				local s = coroutine_status(coroutine)
+
+				if s == 'dead' then
+					self.coroutine = nil
+					return SUCCESS
+				end
+			else
+				-- yield or return with status
+				self.coroutine = nil
+
+				if nodeStatus then
+					return SUCCESS
+				else
+					return FAILURE
+				end
+			end
+		end
+	end
+end
+
+function decoratorNode:reset()
+	self.coroutine = nil
+	self.child:reset()
+end
+
+function actionNode:__tostring()
+	return string.format('DecoratorNode[%q / %d / %s; %s]', self.name, self.calls, tostring(self.coroutine or 'none'), tostring(self.child))
+end
+
+function DecoratorNode(...)
+	return setmetatable({}, decoratorNode):ctor(...)
+end
+
+-- //// DecoratorNode
+
+-- Composite nodes
+
+local seqNode = {}
+seqNode.__index = seqNode
+
+function seqNode:ctor(children, isSelector)
+	self.children = children
+	self.isSelector = isSelector
+	self.calls = 0
+	self.index = 1
+	self.size = #children
+
+	return self
+end
+
+function seqNode:run(delta, blackboard)
+	self.calls = self.calls + 1
+	local size = self.size
+	local isSelector = self.isSelector
+`
+	while self.index <= size do
+		local child = self.children[self.index]
+		local status = runAndReset(child, delta, blackboard)
+
+		if status == RUNNING then
+			return RUNNING
+		elseif isSelector and status == SUCCESS then
+			return SUCCESS
+		elseif not isSelector and status == FAILURE then
+			return FAILURE
+		end
+
+		self.index = self.index + 1
+	end
+end
+
+function seqNode:reset()
+	self.index = 1
+
+	for _, child in ipairs(self.children) do
+		child:reset()
+	end
+end
+
+function seqNode:bake()
+	for _, child in ipairs(self.children) do
+		child:bake()
+	end
+end
+
+function seqNode:__tostring()
+	if self.isSelector then
+		return string.format('SelectorNode[%d / %d, index=%d, current=%s]', self.calls, self.size, self.index, tostring(self.children[self.index]))
+	else
+		return string.format('SequenceNode[%d / %d, index=%d, current=%s]', self.calls, self.size, self.index, tostring(self.children[self.index]))
+	end
+end
+
+function SequenceNode(p, c)
+	return setmetatable({}, seqNode):ctor(c, false)
+end
+
+function SelectorNode(p, c)
+	return setmetatable({}, seqNode):ctor(c, true)
+end
+
+local parallelNode = {}
+parallelNode.__index = parallelNode
+
+function parallelNode:ctor(parameters, children)
+	self.children = children
+
+	if type(parameters.success) == 'number' then
+		self.successLimit = parameters.success
+	else
+		self.successLimit = #children
+	end
+
+	if type(parameters.fail) == 'number' then
+		self.failLimit = parameters.fail
+	else
+		self.failLimit = #children
+	end
+
+	self.lastFailed = -1
+	self.lastSucceed = -1
+	self.calls = 0
+
+	return self
+end
+
+function parallelNode:run(delta, blackboard)
+	self.calls = self.calls + 1
+	local failed = 0
+	local succeeded = 0
+	local failLimit = self.failLimit
+	local successLimit = self.successLimit
+
+	for _, node in ipairs(self.children) do
+		local status = runAndReset(node, delta, blackboard)
+
+		if status == SUCCESS then
+			succeeded = succeeded + 1
+		elseif status == FAILURE then
+			failed = failed + 1
+		end
+
+		if failed >= failLimit then
+			self.lastFailed = failed
+			self.lastSucceed = succeeded
+			return FAILURE
+		elseif succeeded >= successLimit then
+			self.lastFailed = failed
+			self.lastSucceed = succeeded
+			return SUCCESS
+		end
+	end
+
+	self.lastFailed = failed
+	self.lastSucceed = succeeded
+	return RUNNING
+end
+
+function parallelNode:bake()
+	for _, child in ipairs(self.children) do
+		child:bake()
+	end
+end
+
+function parallelNode:reset()
+	self.lastFailed = -1
+	self.lastSucceed = -1
+
+	for _, child in ipairs(self.children) do
+		child:reset()
+	end
+end
+
+function parallelNode:__tostring()
+	return string.format('ParallelNode[%d / %d, limits=%d / %d, last=%d / %d]', self.calls, #self.children, self.successLimit, self.failLimit, self.lastSucceed, self.lastFailed)
+end
+
+function ParallelNode(p, c)
+	return setmetatable({}, parallelNode):ctor(p, c)
+end
+
+local dynNode = {}
+dynNode.__index = dynNode
+
+function dynNode:ctor(children)
+	self.children = children
+	self.calls = 0
+	self.index = 1
+	self.size = #children
+
+	return self
+end
+
+function dynNode:run(delta, blackboard)
+	self.calls = self.calls + 1
+
+	for i, node in ipairs(self.children) do
+		local status = runAndReset(node, delta, blackboard)
+
+		if stauts == FAILURE and self.index == i then
+			self.index = self.index + 1
+		elseif status ~= RUNNING and i < self.index then
+			node:reset()
+			self.index = i
+		end
+
+		if status == SUCCESS or self.index > self.size then
+			return status
+		end
+	end
+
+	return RUNNING
+end
+
+function dynNode:bake()
+	for _, child in ipairs(self.children) do
+		child:bake()
+	end
+end
+
+function dynNode:reset()
+	self.index = 1
+
+	for _, child in ipairs(self.children) do
+		child:reset()
+	end
+end
+
+function dynNode:__tostring()
+	return string.format('DynamicNode[%d / %d, index=%d, current=%s]', self.calls, self.size, self.index, tostring(self.children[self.index]))
+end
+
+function DynamicNode(p, c)
+	return setmetatable({}, dynNode):ctor(c)
+end
+
+local randNode = {}
+randNode.__index = randNode
+
+function randNode:ctor(children)
+	self.children = children
+	self.index = -1
+	self.calls = 0
+	self.size = #children
+
+	return self
+end
+
+function randNode:run(delta, blackboard)
+	self.calls = self.calls + 1
+
+	if self.index == -1 and self.size ~= 0 then
+		self.index = math.random(1, self.size)
+	end
+
+	if self.index == -1 then
+		return FAILURE
+	else
+		return runAndReset(self.children[self.index], delta, blackboard)
+	end
+end
+
+function randNode:bake()
+	for _, child in ipairs(self.children) do
+		child:bake()
+	end
+end
+
+function randNode:reset()
+	self.index = -1
+
+	for _, child in ipairs(self.children) do
+		child:reset()
+	end
+end
+
+function randNode:__tostring()
+	return string.format('RandomNode[%d / %d, index=%d, current=%s]', self.calls, self.size, self.index, tostring(self.children[self.index]))
+end
+
+function RandomNode(p, c)
+	return setmetatable({}, randNode):ctor(c)
+end
+
+-- //// Composite nodes
+
+local statePrototype = {}
+statePrototype.__index = statePrototype
+
+function statePrototype:ctor(blackboard, root)
+	self.root = root
+	self._blackboard = blackboard
+
+	return self
+end
+
+function statePrototype:run(delta)
+	local ephemerals = self._blackboard:takeEphemerals()
+	local status = runAndReset(self.root, delta, self._blackboard)
+	self._blackboard:clearEphemerals(ephemerals)
+
+	return status
+end
+
+function statePrototype:clear()
+	self.tree:reset()
+end
+
+function statePrototype:blackboard()
+	return self._blackboard
+end
+
+function BehaviorState(...)
+	return setmetatable({}, statePrototype):ctor(...)
+end

src/main/resources/scripts/config.lua

@@ -1,17 +0,0 @@
-
-config = {}
-local config = config
-
-function config.getParameter(name, default)
-	if type(name) ~= 'string' then
-		error('config.getParameter: name must be a string, got ' .. type(name), 2)
-	end
-
-	local get = config._get(name)
-
-	if get == nil then
-		return default
-	else
-		return get
-	end
-end

src/main/resources/scripts/global.lua

@@ -18,7 +18,7 @@ local format = string.format
 
 function checkarg(value, index, expected, fnName, overrideExpected)
 	if type(value) ~= expected then
-		error(string.format('bad argument #%d to %s: %s expected, got %s', index, fnName, overrideExpected or expected, type(value)), 3)
+		error(format('bad argument #%d to %s: %s expected, got %s', index, fnName, overrideExpected or expected, type(value)), 3)
 	end
 end
 
@@ -286,22 +286,6 @@ do
 	end
 end
 
-do
-	local min = math.min
-	local max = math.max
-
-	function math.clamp(value, _min, _max)
-		if _min > _max then
-			error(format('interval is empty: %d <= %d', _min, _max), 2)
-		end
-
-		return max(min(value, _min), _max)
-	end
-end
-
-function math.lerp(t, a, b)
-	return t * (b - a) + a
-end
 
 do
 	local lerp = math.lerp
@@ -336,3 +320,85 @@ end
 
 -- why is this even a thing.
 sb.print = tostring
+
+-- KStarbound global Lua functions and extensions
+do
+	local min = math.min
+	local max = math.max
+
+	function math.clamp(value, _min, _max)
+		if _min > _max then
+			error(format('interval is empty: %d <= %d', _min, _max), 2)
+		end
+
+		return max(min(value, _min), _max)
+	end
+end
+
+function math.lerp(t, a, b)
+	return t * (b - a) + a
+end
+
+function table.copy(source)
+	local copy = {}
+
+	for k, v in pairs(source) do
+		if type(v) == 'table' then
+			copy[k] = table.copy(v)
+		else
+			copy[k] = v
+		end
+	end
+
+	return copy
+end
+
+function jsonType(value)
+	if type(value) ~= 'table' then
+		return LUA_HINT_NONE
+	else
+		local meta = getmetatable(value)
+
+		if not meta then
+			return LUA_HINT_NONE
+		else
+			return meta.__typehint or LUA_HINT_NONE
+		end
+	end
+end
+
+function mergeJson(base, with)
+	local bType = jsonType(base)
+	local wType = jsonType(with)
+
+	if bType == LUA_HINT_OBJECT and wType == LUA_HINT_OBJECT or bType == LUA_HINT_NONE and wType == LUA_HINT_NONE and type(base) == 'table' and type(with) == 'table' then
+		-- merge as json objects as long as they are both "json objects" or plain tables
+		for k, v in pairs(with) do
+			base[k] = mergeJson(base[k], v)
+		end
+
+		return base
+	elseif wType == nil then
+		return base
+	else
+		return with
+	end
+end
+
+string.__index = string
+
+do
+	local sub = string.sub
+
+	function string:__index(key)
+		if type(key) == 'number' then
+			return sub(self, key, key)
+		else
+			return string[key]
+		end
+	end
+end
+
+setmetatable('', string)
+
+

src/main/resources/scripts/message_handler.lua

@@ -1,27 +0,0 @@
-
-message = {
-	handlers = {}
-}
-
-local message = message
-
-function message.setHandler(name, handler)
-	if type(name) ~= 'string' then
-		error('message.setHandler: Handler name must be a string, got ' .. type(name), 2)
-	end
-
-	if type(handler) ~= 'function' then
-		error('message.setHandler: Handler itself must be a function, got ' .. type(handler), 2)
-	end
-
-	message.subscribe(name)
-	message.handlers[name] = handler
-end
-
-function message.call(name, ...)
-	local handler = message.handlers[name]
-
-	if handler ~= nil then
-		return handler(...)
-	end
-end