Add alt power view with shift pressed in flywheel battery screen

src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MultiblockTestBlockEntity.kt

@@ -6,6 +6,7 @@ import net.minecraft.world.level.block.Blocks
 import net.minecraft.world.level.block.entity.FurnaceBlockEntity
 import net.minecraft.world.level.block.entity.HopperBlockEntity
 import net.minecraft.world.level.block.state.BlockState
+import ru.dbotthepony.mc.otm.core.multiblock.MultiblockStatus
 import ru.dbotthepony.mc.otm.core.multiblock.multiblockEntity
 import ru.dbotthepony.mc.otm.core.multiblock.shapedMultiblock
 import ru.dbotthepony.mc.otm.registry.game.MBlockEntities
@@ -17,7 +18,7 @@ class MultiblockTestBlockEntity(blockPos: BlockPos, blockState: BlockState) : Ma
 	override fun tick() {
 		super.tick()
 
-		if (config.update(level!!)) {
+		if (config.update(level!!) == MultiblockStatus.VALID) {
 			println("It matches!")
 			println("hopper block entities: ${config.blockEntities(HOPPERS)}")
 		}

src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/blackhole/BlackHoleGeneratorBlockEntity.kt

@@ -32,6 +32,7 @@ import ru.dbotthepony.mc.otm.core.math.Decimal
 import ru.dbotthepony.mc.otm.core.math.plus
 import ru.dbotthepony.mc.otm.core.math.times
 import ru.dbotthepony.mc.otm.core.multiblock.BlockEntityTag
+import ru.dbotthepony.mc.otm.core.multiblock.MultiblockStatus
 import ru.dbotthepony.mc.otm.core.multiblock.shapedMultiblock
 import ru.dbotthepony.mc.otm.core.util.InvalidableLazy
 import ru.dbotthepony.mc.otm.menu.tech.BlackHoleGeneratorMenu
@@ -169,9 +170,11 @@ class BlackHoleGeneratorBlockEntity(blockPos: BlockPos, blockState: BlockState)
 		val multiblock = multiblock
 
 		if (multiblock != null) {
-			if (!multiblock.update(level, blockRotation.back)) {
+			val status = multiblock.update(level, blockRotation.back)
+
+			if (status == MultiblockStatus.INVALID) {
 				this.lastRange = findBlackHoleRange()
-			} else {
+			} else if (status == MultiblockStatus.VALID) {
 				val blackHole = multiblock.blockEntities(BLACK_HOLE).firstOrNull() ?: return
 
 				val matterExtracted = matter.extractMatter(if (mode == Mode.TARGET_MASS && blackHole.mass != targetMass) minOf(injectionRate, (blackHole.mass - targetMass).absoluteValue) else injectionRate, true)

src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/tech/FlywheelBatteryBlockEntity.kt

@@ -4,6 +4,7 @@ import it.unimi.dsi.fastutil.ints.Int2ObjectFunction
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap
 import it.unimi.dsi.fastutil.objects.Reference2IntMap
 import net.minecraft.core.BlockPos
+import net.minecraft.core.SectionPos
 import net.minecraft.core.Vec3i
 import net.minecraft.world.entity.player.Inventory
 import net.minecraft.world.entity.player.Player
@@ -18,9 +19,11 @@ import ru.dbotthepony.mc.otm.capability.energy.IMatteryEnergyStorage
 import ru.dbotthepony.mc.otm.capability.energy.ProfiledEnergyStorage
 import ru.dbotthepony.mc.otm.config.MachinesConfig
 import ru.dbotthepony.mc.otm.core.getBlockStateNow
+import ru.dbotthepony.mc.otm.core.getChunkNow
 import ru.dbotthepony.mc.otm.core.math.Decimal
 import ru.dbotthepony.mc.otm.core.math.plus
 import ru.dbotthepony.mc.otm.core.math.times
+import ru.dbotthepony.mc.otm.core.multiblock.MultiblockStatus
 import ru.dbotthepony.mc.otm.core.multiblock.ShapedMultiblock
 import ru.dbotthepony.mc.otm.core.multiblock.ShapedMultiblockFactory
 import ru.dbotthepony.mc.otm.core.multiblock.Strategy
@@ -37,7 +40,7 @@ class FlywheelBatteryBlockEntity(blockPos: BlockPos, blockState: BlockState) : M
 	private var cachedChargeEfficiency = Decimal.ONE
 
 	val formed: Boolean
-		get() = multiblock?.isValid == true
+		get() = multiblock?.isValid == MultiblockStatus.VALID
 
 	// dangerous as Reference2IntMap.Entry reference live data, and its behavior is undefined once flywheel updates again
 	val currentlyUsedCore: Reference2IntMap.Entry<Block>? get() {
@@ -109,12 +112,18 @@ class FlywheelBatteryBlockEntity(blockPos: BlockPos, blockState: BlockState) : M
 		super.tick()
 
 		val level = level!!
+		var isUnloaded = false
 
-		if (multiblock == null || !multiblock!!.update(level, blockRotation.front)) {
+		if (multiblock == null || multiblock!!.update(level, blockRotation.front) != MultiblockStatus.VALID) {
+			val chunk = level.chunkSource.getChunkNow(blockPos)
+
+			if (chunk == null) {
+				isUnloaded = true
+			} else {
 				var height = 0
 				val base = blockPos + blockRotation.back.normal * 2
 
-			while (level.getBlockStateNow(base.atY(blockPos.y + height)).block == MBlocks.FLYWHEEL_SHAFT) {
+				while (chunk.getBlockState(base.atY(blockPos.y + height)).block == MBlocks.FLYWHEEL_SHAFT) {
 					height++
 				}
 
@@ -128,17 +137,16 @@ class FlywheelBatteryBlockEntity(blockPos: BlockPos, blockState: BlockState) : M
 					multiblock = getConfiguration(height).create(blockPos)
 				}
 			}
+		}
 
-		if (multiblock?.isValid == true) {
+		if (multiblock?.isValid == MultiblockStatus.VALID) {
-			// energy.parent.batteryLevel *= Decimal("0.99994")
-			// this way energy loss is recorded in graph
 			val entry = multiblock!!.blocks(FLYWHEEL_MATERIAL).reference2IntEntrySet().first()
 			val material = FlywheelMaterials[entry.key]!!
 			energy.parent.maxBatteryLevel = material.storage * entry.intValue
 			cachedChargeEfficiency = material.receiveEfficiency
 			currentLossPerTick = energy.parent.batteryLevel * MachinesConfig.Flywheel.PASSIVE_LOSS * material.momentumLossSpeed
 			energy.extractEnergy(currentLossPerTick, false)
-		} else {
+		} else if (!isUnloaded && multiblock?.isValid != MultiblockStatus.NOT_LOADED) {
 			energy.parent.maxBatteryLevel = Decimal.ZERO
 			currentLossPerTick = energy.parent.batteryLevel * MachinesConfig.Flywheel.ACTIVE_LOSS
 			energy.extractEnergy(currentLossPerTick, false)
@@ -241,6 +249,8 @@ class FlywheelBatteryBlockEntity(blockPos: BlockPos, blockState: BlockState) : M
 							block(MBlocks.FLYWHEEL_HOUSING)
 
 							if (y == height - 1) {
+								// wrap in subnode to narrow blockentity lookups
+								or {
 									block(MBlocks.ENERGY_INPUT_INTERFACE)
 									block(MBlocks.ENERGY_OUTPUT_INTERFACE)
 									tag(EnergyInterfaceBlockEntity.INPUT_TAG)
@@ -253,3 +263,4 @@ class FlywheelBatteryBlockEntity(blockPos: BlockPos, blockState: BlockState) : M
 			}
 		}
 	}
+}

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/DynamicLabel.kt

@@ -22,4 +22,13 @@ open class DynamicLabel<out S : Screen>(
 		super.tickInner()
 		text = textSupplier.get()
 	}
+
+	// reserve some extra space for text
+	override val textSizeDeterminationPadding: Float
+		get() = 14f
+
+	override fun sizeToContents() {
+		text = textSupplier.get()
+		super.sizeToContents()
+	}
 }

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/FramePanel.kt

@@ -279,6 +279,11 @@ open class FramePanel<out S : Screen>(
 
 	protected val tabs: ArrayList<FramePanel<*>.AbstractTab> = ArrayList()
 
+	override fun sizeToContents() {
+		super.sizeToContents()
+		width = maxOf(width, dockPaddingLeft + dockPaddingRight + (helpButton?.width ?: 0f) + (closeButton?.width ?: 0f) + (title?.let { font.width(it).toFloat() } ?: 0f))
+	}
+
 	override fun performLayout() {
 		for ((i, tab) in tabs.withIndex()) {
 			tab.setPos(i * 28f, -28f)

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/Label.kt

@@ -60,11 +60,14 @@ open class Label<out S : Screen>(
 		}
 	}
 
+	protected open val textSizeDeterminationPadding: Float
+		get() = 0f
+
 	override fun sizeToContents() {
-		val w = font.width(text)
+		val w = font.width(text) + textSizeDeterminationPadding
 		val h = font.lineHeight + 2
 
-		width = width.coerceAtLeast(w.toFloat())
+		width = width.coerceAtLeast(w)
 		height = height.coerceAtLeast(h.toFloat())
 	}
 }

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/tech/BlackHoleGeneratorScreen.kt

@@ -46,6 +46,7 @@ class BlackHoleGeneratorScreen(menu: BlackHoleGeneratorMenu, inventory: Inventor
 		}).also {
 			it.dock = Dock.TOP
 			it.dockTop = 4f
+			it.dockBottom = 4f
 		}
 
 		val energy = ProfiledPowerGaugePanel(this, frame, menu.energy)

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/tech/FlywheelBatteryScreen.kt

@@ -5,6 +5,7 @@ import net.minecraft.network.chat.Component
 import net.minecraft.world.entity.player.Inventory
 import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.Items
+import ru.dbotthepony.mc.otm.client.ShiftPressedCond
 import ru.dbotthepony.mc.otm.client.render.RenderGravity
 import ru.dbotthepony.mc.otm.client.screen.MatteryScreen
 import ru.dbotthepony.mc.otm.client.screen.panels.Dock
@@ -46,7 +47,7 @@ class FlywheelBatteryScreen(menu: FlywheelBatteryMenu, inventory: Inventory, tit
 			it.dock = Dock.TOP
 		}
 
-		DynamicLabel(this, frame, textSupplier = Supplier { menu.currentLossPerTick.get().formatPower(decimalPlaces = 6) }).also {
+		DynamicLabel(this, frame, textSupplier = Supplier { menu.currentLossPerTick.get().formatPower(decimalPlaces = 4, formatAsReadable = ShiftPressedCond) }).also {
 			it.dock = Dock.TOP
 		}
 
@@ -54,7 +55,7 @@ class FlywheelBatteryScreen(menu: FlywheelBatteryMenu, inventory: Inventory, tit
 			it.dock = Dock.TOP
 		}
 
-		DynamicLabel(this, frame, textSupplier = Supplier { (menu.currentLossPerTick.get() * 20).formatPower() }).also {
+		DynamicLabel(this, frame, textSupplier = Supplier { (menu.currentLossPerTick.get() * 20).formatPower(formatAsReadable = ShiftPressedCond) }).also {
 			it.dock = Dock.TOP
 		}
 

src/main/kotlin/ru/dbotthepony/mc/otm/core/Ext.kt

@@ -36,6 +36,7 @@ import net.minecraft.world.item.component.ItemAttributeModifiers
 import net.minecraft.world.item.crafting.CraftingInput
 import net.minecraft.world.item.crafting.RecipeInput
 import net.minecraft.world.level.BlockGetter
+import net.minecraft.world.level.ChunkPos
 import net.minecraft.world.level.Level
 import net.minecraft.world.level.LevelAccessor
 import net.minecraft.world.level.block.Block
@@ -44,6 +45,8 @@ import net.minecraft.world.level.block.entity.BlockEntity
 import net.minecraft.world.level.block.state.BlockState
 import net.minecraft.world.level.block.state.StateHolder
 import net.minecraft.world.level.block.state.properties.Property
+import net.minecraft.world.level.chunk.ChunkSource
+import net.minecraft.world.level.chunk.LevelChunk
 import net.minecraft.world.phys.Vec3
 import net.neoforged.neoforge.fluids.FluidStack
 import net.neoforged.neoforge.items.IItemHandler
@@ -127,13 +130,25 @@ operator fun JsonObject.set(s: String, value: Number) = add(s, JsonPrimitive(val
 operator fun JsonObject.set(s: String, value: Boolean) = add(s, JsonPrimitive(value))
 
 fun LevelAccessor.getBlockStateNow(pos: BlockPos): BlockState {
-	return chunkSource.getChunkNow(SectionPos.blockToSectionCoord(pos.x), SectionPos.blockToSectionCoord(pos.z))?.getBlockState(pos) ?: Blocks.AIR.defaultBlockState()
+	return getBlockStateNowOrNull(pos) ?: Blocks.AIR.defaultBlockState()
+}
+
+fun LevelAccessor.getBlockStateNowOrNull(pos: BlockPos): BlockState? {
+	return chunkSource.getChunkNow(SectionPos.blockToSectionCoord(pos.x), SectionPos.blockToSectionCoord(pos.z))?.getBlockState(pos)
 }
 
 fun LevelAccessor.getBlockEntityNow(pos: BlockPos): BlockEntity? {
 	return chunkSource.getChunkNow(SectionPos.blockToSectionCoord(pos.x), SectionPos.blockToSectionCoord(pos.z))?.getBlockEntity(pos)
 }
 
+fun ChunkSource.getChunkNow(pos: BlockPos): LevelChunk? {
+	return getChunkNow(SectionPos.blockToSectionCoord(pos.x), SectionPos.blockToSectionCoord(pos.z))
+}
+
+fun ChunkSource.getChunkNow(pos: ChunkPos): LevelChunk? {
+	return getChunkNow(pos.x, pos.z)
+}
+
 inline val FluidStack.isNotEmpty get() = !isEmpty
 inline val ItemStack.isNotEmpty get() = !isEmpty
 

src/main/kotlin/ru/dbotthepony/mc/otm/core/math/EuclidMath.kt

@@ -6,6 +6,7 @@ import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap
 import net.minecraft.core.BlockPos
 import net.minecraft.core.Direction
 import net.minecraft.core.Vec3i
+import net.minecraft.world.level.ChunkPos
 import net.minecraft.world.phys.Vec3
 import org.joml.AxisAngle4f
 import org.joml.Matrix3f
@@ -420,6 +421,12 @@ operator fun BlockPos.plus(direction: Direction): BlockPos = this.offset(directi
 operator fun BlockPos.minus(direction: Vec3i): BlockPos = this.subtract(direction)
 operator fun BlockPos.minus(direction: Direction): BlockPos = this.subtract(direction.normal)
 
+operator fun ChunkPos.compareTo(other: ChunkPos): Int {
+	val cmp = x.compareTo(other.x)
+	if (cmp != 0) return cmp
+	return z.compareTo(other.z)
+}
+
 operator fun Vec3i.plus(direction: Vec3i): Vec3i = this.offset(direction)
 operator fun Vec3i.plus(direction: Direction): Vec3i = this.offset(direction.normal)
 operator fun Vec3i.minus(direction: Vec3i): Vec3i = this.subtract(direction)

src/main/kotlin/ru/dbotthepony/mc/otm/core/multiblock/BlockPredicate.kt

@@ -7,11 +7,10 @@ import net.minecraft.world.level.LevelAccessor
 import net.minecraft.world.level.block.Rotation
 import net.minecraft.world.level.block.entity.BlockEntity
 import net.minecraft.world.level.block.state.BlockState
-import ru.dbotthepony.mc.otm.core.getBlockStateNow
 import ru.dbotthepony.mc.otm.core.math.plus
 
 fun interface BlockPredicate {
-	fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean
+	fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean
 
 	fun rotate(rotation: Rotation): BlockPredicate {
 		return this
@@ -42,7 +41,7 @@ fun interface BlockPredicate {
 	}
 
 	data class Positioned(val offset: BlockPos, val parent: BlockPredicate) : BlockPredicate {
-		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 			return parent.test(offset + pos, access, blockState, blockEntity)
 		}
 
@@ -55,7 +54,7 @@ fun interface BlockPredicate {
 		constructor(vararg nodes: BlockPredicate) : this(ImmutableSet.copyOf(nodes))
 		constructor(nodes: Set<BlockPredicate>) : this(ImmutableSet.copyOf(nodes))
 
-		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 			return nodes.all { it.test(pos, access, blockState, blockEntity) }
 		}
 	}
@@ -64,19 +63,19 @@ fun interface BlockPredicate {
 		constructor(vararg nodes: BlockPredicate) : this(ImmutableSet.copyOf(nodes))
 		constructor(nodes: Set<BlockPredicate>) : this(ImmutableSet.copyOf(nodes))
 
-		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 			return nodes.any { it.test(pos, access, blockState, blockEntity) }
 		}
 	}
 
 	object Air : BlockPredicate {
-		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 			return blockState.isAir
 		}
 	}
 
 	object NotAir : BlockPredicate {
-		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+		override fun test(pos: BlockPos, access: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 			return !blockState.isAir
 		}
 	}

src/main/kotlin/ru/dbotthepony/mc/otm/core/multiblock/IMultiblockAccess.kt

@@ -12,7 +12,7 @@ interface IMultiblockAccess {
 	/**
 	 * Whenever this multiblock is valid (all checks passed)
 	 */
-	val isValid: Boolean
+	val isValid: MultiblockStatus
 	val currentDirection: Direction?
 	val currentNodes: Map<BlockPos, IMultiblockNode>
 

src/main/kotlin/ru/dbotthepony/mc/otm/core/multiblock/MultiblockStatus.kt

@@ -0,0 +1,32 @@
+package ru.dbotthepony.mc.otm.core.multiblock
+
+enum class MultiblockStatus {
+	/**
+	 * Multiblock is functional, configuration is valid
+	 */
+	VALID,
+
+	/**
+	 * Multiblock status is unknown because it require to check
+	 */
+	NOT_LOADED,
+
+	/**
+	 * Multiblock is invalid
+	 */
+	INVALID;
+
+	fun or(other: MultiblockStatus): MultiblockStatus {
+		if (ordinal <= other.ordinal) {
+			return this
+		} else {
+			return other
+		}
+	}
+
+	companion object {
+		fun valid(status: Boolean): MultiblockStatus {
+			return if (status) VALID else INVALID
+		}
+	}
+}

src/main/kotlin/ru/dbotthepony/mc/otm/core/multiblock/ShapedMultiblock.kt

@@ -7,19 +7,21 @@ import it.unimi.dsi.fastutil.objects.Reference2IntMaps
 import it.unimi.dsi.fastutil.objects.Reference2IntOpenHashMap
 import net.minecraft.core.BlockPos
 import net.minecraft.core.Direction
-import net.minecraft.core.SectionPos
 import net.minecraft.network.RegistryFriendlyByteBuf
+import net.minecraft.world.level.ChunkPos
 import net.minecraft.world.level.LevelAccessor
 import net.minecraft.world.level.block.Block
 import net.minecraft.world.level.block.entity.BlockEntity
 import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.level.chunk.LevelChunk
 import net.minecraft.world.phys.AABB
 import ru.dbotthepony.kommons.util.Listenable
 import ru.dbotthepony.mc.otm.core.collect.collect
 import ru.dbotthepony.mc.otm.core.collect.map
 import ru.dbotthepony.mc.otm.core.getBlockEntityNow
-import ru.dbotthepony.mc.otm.core.getBlockStateNow
+import ru.dbotthepony.mc.otm.core.getBlockStateNowOrNull
 import ru.dbotthepony.mc.otm.core.math.Vector
+import ru.dbotthepony.mc.otm.core.math.compareTo
 import ru.dbotthepony.mc.otm.core.math.plus
 import ru.dbotthepony.mc.otm.core.registryName
 import ru.dbotthepony.mc.otm.network.syncher.IRemoteState
@@ -35,7 +37,7 @@ import kotlin.collections.HashMap
  * [close] MUST be called when multiblock goes out of scope
  */
 class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMultiblockAccess, ISynchable, Closeable, GlobalBlockEntityRemovalListener {
-	override var isValid: Boolean = false
+	override var isValid: MultiblockStatus = MultiblockStatus.INVALID
 		private set
 
 	private val customChecks = factory.customChecks
@@ -68,7 +70,9 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 		get() = remotes.isNotEmpty()
 
 	private inner class Config(override val currentDirection: Direction, val pos: BlockPos, parts: Collection<ShapedMultiblockFactory.Part>) : IMultiblockAccess, ISynchable, GlobalBlockEntityRemovalListener, Comparable<Config> {
-		private inner class Part(override val pos: BlockPos, val prototype: ShapedMultiblockFactory.Part) : Comparable<Part>, IMultiblockNode {
+		private inner class Part private constructor(override val pos: BlockPos, val prototype: ShapedMultiblockFactory.Part, val chunkPos: ChunkPos) : Comparable<Part>, IMultiblockNode {
+			constructor(pos: BlockPos, prototype: ShapedMultiblockFactory.Part) : this(pos, prototype, ChunkPos(pos))
+
 			var index = -1
 
 			private var blockEntity: BlockEntity? = null
@@ -76,12 +80,10 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 			private val assignedBlockEntityLists = ArrayList<BlockEntitySet<*>>(prototype.blockEntityTags.size)
 			private val assignedBlockStateLists = ArrayList<Reference2IntMap<BlockState>>()
 			private val assignedBlockLists = ArrayList<Reference2IntMap<Block>>()
-			private val children: ImmutableList<Part> by lazy(LazyThreadSafetyMode.NONE) { prototype.children.iterator().map { Part(pos, it) }.collect(ImmutableList.toImmutableList()) }
+			private val children: ImmutableList<Part> by lazy(LazyThreadSafetyMode.NONE) { prototype.children.iterator().map { Part(pos, it, chunkPos) }.collect(ImmutableList.toImmutableList()) }
 
 			override fun compareTo(other: Part): Int {
-				val cmp = SectionPos.blockToSectionCoord(pos.x).compareTo(SectionPos.blockToSectionCoord(other.pos.x))
+				return chunkPos.compareTo(other.chunkPos)
-				if (cmp != 0) return cmp
-				return SectionPos.blockToSectionCoord(pos.z).compareTo(SectionPos.blockToSectionCoord(other.pos.z))
 			}
 
 			init {
@@ -114,7 +116,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				stream.writeByte(status.ordinal)
 			}
 
-			private fun orPredicates(levelAccessor: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+			private fun orPredicates(levelAccessor: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 				if (prototype.predicate.isNotEmpty()) {
 					if (lastSuccessfulPathPredicate != -1 && !prototype.predicate[lastSuccessfulPathPredicate].test(pos, levelAccessor, blockState, blockEntity)) {
 						lastSuccessfulPathPredicate = -1
@@ -129,7 +131,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				return true
 			}
 
-			private fun orChildren(levelAccessor: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+			private fun orChildren(levelAccessor: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 				if (children.isNotEmpty()) {
 					if (lastSuccessfulPathChildren != -1 && !children[lastSuccessfulPathChildren].test0(levelAccessor, blockState, blockEntity)) {
 						lastSuccessfulPathChildren = -1
@@ -144,7 +146,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				return true
 			}
 
-			private fun test0(levelAccessor: LevelAccessor, blockState: BlockState, blockEntity: BlockEntity?): Boolean {
+			private fun test0(levelAccessor: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): Boolean {
 				val test = when (prototype.strategy) {
 					Strategy.OR_BOTH -> orPredicates(levelAccessor, blockState, blockEntity) && orChildren(levelAccessor, blockState, blockEntity)
 
@@ -159,7 +161,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				if (test) {
 					if (assignedBlockEntityLists.isNotEmpty()) {
 						val be1 = this.blockEntity
-						val be2 = blockEntity
+						val be2 = blockEntity.value
 
 						if (be1 != be2) {
 							generation++
@@ -219,9 +221,19 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				return test
 			}
 
-			fun test(levelAccessor: LevelAccessor): Boolean {
+			fun test(levelAccessor: LevelAccessor): MultiblockStatus {
-				val blockEntity = levelAccessor.getBlockEntityNow(pos)
+				val blockEntity = lazy(LazyThreadSafetyMode.NONE) { levelAccessor.getBlockEntityNow(pos) }
-				val blockState = levelAccessor.getBlockStateNow(pos)
+				val blockState = levelAccessor.getBlockStateNowOrNull(pos) ?: return MultiblockStatus.NOT_LOADED
+				return test(levelAccessor, blockState, blockEntity)
+			}
+
+			fun test(levelAccessor: LevelAccessor, chunk: LevelChunk): MultiblockStatus {
+				val blockEntity = lazy(LazyThreadSafetyMode.NONE) { chunk.getBlockEntity(pos) }
+				val blockState = chunk.getBlockState(pos)
+				return test(levelAccessor, blockState, blockEntity)
+			}
+
+			fun test(levelAccessor: LevelAccessor, blockState: BlockState, blockEntity: Lazy<BlockEntity?>): MultiblockStatus {
 				val status = test0(levelAccessor, blockState, blockEntity)
 
 				val previous = this.status
@@ -231,7 +243,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 					pushNetworkPartUpdate(this)
 				}
 
-				return status
+				return if (status) MultiblockStatus.VALID else MultiblockStatus.INVALID
 			}
 
 			private fun clearFull() {
@@ -371,6 +383,20 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 			.sorted() // group/localize parts by in-world chunks to maximize getChunk() cache hit rate
 			.collect(ImmutableMap.toImmutableMap({ it.pos }, { it }))
 
+		private val partsByChunk: ImmutableMap<ChunkPos, ImmutableList<Part>>
+
+		init {
+			val builder = HashMap<ChunkPos, ArrayList<Part>>()
+
+			for (part in this.parts.values) {
+				builder.computeIfAbsent(part.chunkPos) { ArrayList() }.add(part)
+			}
+
+			partsByChunk = builder.entries.stream()
+				.map { it.key to ImmutableList.copyOf(it.value) }
+				.collect(ImmutableMap.toImmutableMap({ it.first }, { it.second }))
+		}
+
 		init {
 			for ((i, part) in this.parts.values.withIndex()) {
 				part.index = i
@@ -395,7 +421,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 			while (networkChangelog.size > parts.size) networkChangelog.removeLast()
 		}
 
-		override var isValid: Boolean = false
+		override var isValid: MultiblockStatus = MultiblockStatus.INVALID
 			private set(value) {
 				if (value != field) {
 					field = value
@@ -403,7 +429,6 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				}
 			}
 
-		private var iterator = this.parts.values.iterator()
 		private var validParts = 0
 
 		override fun compareTo(other: Config): Int {
@@ -412,42 +437,46 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 			return cmp
 		}
 
-		fun updateRemaining(levelAccessor: LevelAccessor) {
+		fun update(levelAccessor: LevelAccessor, updateEverything: Boolean = remotes.isNotEmpty()): MultiblockStatus {
 			val networkVersion = networkVersion
 
-			if (!isValid) { // update rest
+			isValid = MultiblockStatus.VALID
-				for (part in iterator) {
+			validParts = 0
-					if (part.test(levelAccessor)) {
+
-						validParts++
+			for ((chunkPos, parts) in partsByChunk) {
+				val chunk = levelAccessor.chunkSource.getChunkNow(chunkPos.x, chunkPos.z)
+
+				if (chunk == null) {
+					isValid = MultiblockStatus.NOT_LOADED
+					break
 				}
+
+				if (updateEverything) {
+					for (part in parts) {
+						val status = part.test(levelAccessor, chunk)
+						if (status === MultiblockStatus.VALID) validParts++
+						isValid = isValid.or(status)
 					}
 				} else {
-				for (part in iterator) {
+					for (part in parts) {
-					if (part.test(levelAccessor))
+						val status = part.test(levelAccessor, chunk)
+
+						if (status === MultiblockStatus.VALID)
 							validParts++
 						else {
-						isValid = false
+							isValid = status
 							break
 						}
 					}
 				}
+			}
+
+			if (isValid != MultiblockStatus.VALID) clear()
 
 			if (this.networkVersion != networkVersion) {
 				remotes.forEach { it.listener.run() }
 			}
-		}
 
-		fun update(levelAccessor: LevelAccessor, updateEverything: Boolean = remotes.isNotEmpty()): Boolean {
-			isValid = true
-			iterator = this.parts.values.iterator()
-			validParts = 0
-			updateRemaining(levelAccessor)
-
-			if (updateEverything && iterator.hasNext()) {
-				updateRemaining(levelAccessor)
-			}
-
-			if (!isValid) clear()
 			return isValid
 		}
 
@@ -565,7 +594,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 
 	override fun read(stream: RegistryFriendlyByteBuf) {
 		isRemote = true
-		isValid = stream.readBoolean()
+		isValid = MultiblockStatus.entries[stream.readByte().toInt()]
 		activeConfig = configurations[stream.readUnsignedByte().toInt()]
 		activeConfig.read(stream)
 	}
@@ -580,7 +609,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 		}
 
 		override fun write(stream: RegistryFriendlyByteBuf) {
-			stream.writeBoolean(isValid)
+			stream.writeByte(isValid.ordinal)
 			stream.writeByte(activeConfig.index)
 			remotes[activeConfig.index].write(stream)
 		}
@@ -608,36 +637,36 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 		}
 
 	override val currentDirection: Direction?
-		get() = if (isValid) activeConfig.currentDirection else null
+		get() = if (isValid == MultiblockStatus.VALID) activeConfig.currentDirection else null
 
 	override val boundingBox: AABB?
-		get() = if (isValid) activeConfig.boundingBox else null
+		get() = if (isValid == MultiblockStatus.VALID) activeConfig.boundingBox else null
 
 	override val currentNodes: Map<BlockPos, IMultiblockNode>
 		get() = activeConfig.parts
 
 	override fun <T : Any> blockEntities(tag: BlockEntityTag<T>): Set<T> {
-		if (!isValid) return setOf()
+		if (isValid != MultiblockStatus.VALID) return setOf()
 		return activeConfig.blockEntities(tag)
 	}
 
 	override fun blocks(tag: Any): Reference2IntMap<Block> {
-		if (!isValid) return Reference2IntMaps.emptyMap()
+		if (isValid != MultiblockStatus.VALID) return Reference2IntMaps.emptyMap()
 		return activeConfig.blocks(tag)
 	}
 
 	override fun blockStates(tag: Any): Reference2IntMap<BlockState> {
-		if (!isValid) return Reference2IntMaps.emptyMap()
+		if (isValid != MultiblockStatus.VALID) return Reference2IntMaps.emptyMap()
 		return activeConfig.blockStates(tag)
 	}
 
 	override fun blocks(): Reference2IntMap<Block> {
-		if (!isValid) return Reference2IntMaps.emptyMap()
+		if (isValid != MultiblockStatus.VALID) return Reference2IntMaps.emptyMap()
 		return activeConfig.blocks()
 	}
 
 	override fun blockStates(): Reference2IntMap<BlockState> {
-		if (!isValid) return Reference2IntMaps.emptyMap()
+		if (isValid != MultiblockStatus.VALID) return Reference2IntMaps.emptyMap()
 		return activeConfig.blockStates()
 	}
 
@@ -645,7 +674,7 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 		return activeConfig.blockEntityRemoved(blockEntity)
 	}
 
-	fun update(levelAccessor: LevelAccessor): Boolean {
+	fun update(levelAccessor: LevelAccessor): MultiblockStatus {
 		isUpdating = true
 		val thisGeneration = generation
 
@@ -659,25 +688,29 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				configurations.add(max)
 			}
 
-			isValid = false
+			isValid = MultiblockStatus.INVALID
+			var hadUnloadedChunks = false
 
 			while (configurations.isNotEmpty()) {
 				val config = configurations.removeFirst()
+				val status = config.update(levelAccessor)
 
-				if (config.update(levelAccessor)) {
+				if (status == MultiblockStatus.VALID) {
 					if (customChecks.all { it.test(config) }) {
 						activeConfig = config
-						isValid = true
+						isValid = MultiblockStatus.VALID
 						remotes.forEach { it.listener.run() }
 
 						if (thisGeneration != generation) {
 							changeListeners.forEach { it.runnable.run() }
 						}
 
-						return true
+						return status
 					} else {
 						config.clear()
 					}
+				} else if (status == MultiblockStatus.NOT_LOADED) {
+					hadUnloadedChunks = true
 				}
 			}
 
@@ -685,22 +718,23 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 				changeListeners.forEach { it.runnable.run() }
 			}
 
-			return false
+			isValid = if (hadUnloadedChunks) MultiblockStatus.NOT_LOADED else MultiblockStatus.INVALID
+			return isValid
 		} finally {
 			isUpdating = false
 		}
 	}
 
-	fun update(levelAccessor: LevelAccessor, direction: Direction): Boolean {
+	fun update(levelAccessor: LevelAccessor, direction: Direction): MultiblockStatus {
 		isUpdating = true
 		val thisGeneration = generation
 
 		try {
 			var changes = false
 
-			if (activeConfig.currentDirection != direction && isValid) {
+			if (activeConfig.currentDirection != direction && isValid === MultiblockStatus.VALID) {
 				activeConfig.clear()
-				isValid = false
+				isValid = MultiblockStatus.INVALID
 				changes = true
 			}
 
@@ -716,9 +750,9 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 			activeConfig = config
 			isValid = config.update(levelAccessor)
 
-			if (isValid) {
+			if (isValid === MultiblockStatus.VALID) {
-				isValid = customChecks.all { it.test(config) }
+				isValid = MultiblockStatus.valid(customChecks.all { it.test(config) })
-				if (!isValid) config.clear()
+				if (isValid !== MultiblockStatus.VALID) config.clear()
 			}
 
 			if (changes) {
@@ -739,6 +773,6 @@ class ShapedMultiblock(pos: BlockPos, factory: ShapedMultiblockFactory) : IMulti
 		changeListeners.clear()
 		remotes.forEach { it.close() }
 		configurations.forEach { it.clear() }
-		isValid = false
+		isValid = MultiblockStatus.INVALID
 	}
 }

src/main/kotlin/ru/dbotthepony/mc/otm/menu/tech/BlackHoleGeneratorMenu.kt

@@ -2,6 +2,7 @@ package ru.dbotthepony.mc.otm.menu.tech
 
 import net.minecraft.world.entity.player.Inventory
 import ru.dbotthepony.mc.otm.block.entity.blackhole.BlackHoleGeneratorBlockEntity
+import ru.dbotthepony.mc.otm.core.multiblock.MultiblockStatus
 import ru.dbotthepony.mc.otm.menu.MatteryMenu
 import ru.dbotthepony.mc.otm.menu.input.BooleanInputWithFeedback
 import ru.dbotthepony.mc.otm.menu.input.DecimalInputWithFeedback
@@ -15,7 +16,7 @@ class BlackHoleGeneratorMenu(
 	inventory: Inventory,
 	tile: BlackHoleGeneratorBlockEntity? = null,
 ) : MatteryMenu(MMenus.BLACK_HOLE_GENERATOR, p_38852_, inventory, tile) {
-	val formed = mSynchronizer.computedBoolean(BooleanSupplier { tile?.multiblock?.isValid ?: false })
+	val formed = mSynchronizer.computedBoolean(BooleanSupplier { tile?.multiblock?.isValid == MultiblockStatus.VALID })
 	val drawBuildingGuide = BooleanInputWithFeedback(this, tile?.let { it::drawBuildingGuide })
 	val energy = CombinedProfiledLevelGaugeWidget(this, tile?.energy)
 	val matter = CombinedProfiledLevelGaugeWidget(this, tile?.matter)