Atlas variant for skin element

Fixes #99

gradle.properties

@@ -1,6 +1,6 @@
 # Sets default memory used for gradle commands. Can be overridden by user or command line properties.
 # This is required to provide enough memory for the Minecraft decompilation process.
-org.gradle.jvmargs=-Xmx3G -XX:+UseParallelGC
+org.gradle.jvmargs=-Xmx3G
 org.gradle.daemon=true
 kotlin.stdlib.default.dependency=false
 

src/main/java/ru/dbotthepony/mc/otm/OverdriveThatMatters.java

@@ -31,6 +31,7 @@ import ru.dbotthepony.mc.otm.client.ClientTickHandlerKt;
 import ru.dbotthepony.mc.otm.client.MatteryGUI;
 import ru.dbotthepony.mc.otm.client.model.GravitationStabilizerModel;
 import ru.dbotthepony.mc.otm.client.model.TritaniumArmorModel;
+import ru.dbotthepony.mc.otm.client.render.WidgetAtlasHolder;
 import ru.dbotthepony.mc.otm.compat.mekanism.QIOKt;
 import ru.dbotthepony.mc.otm.compat.mekanism.TooltipsKt;
 import ru.dbotthepony.mc.otm.core.ImpreciseFraction;
@@ -102,6 +103,7 @@ public final class OverdriveThatMatters {
 			modBus.addListener(EventPriority.NORMAL, AndroidAbilityKeyMapping.INSTANCE::register);
 			modBus.addListener(EventPriority.NORMAL, TritaniumArmorModel::register);
 			modBus.addListener(EventPriority.NORMAL, GravitationStabilizerModel::register);
+			modBus.addListener(EventPriority.NORMAL, WidgetAtlasHolder::register);
 		});
 
 		ClientConfig.INSTANCE.register();

src/main/kotlin/ru/dbotthepony/mc/otm/android/AndroidResearchType.kt

@@ -7,6 +7,7 @@ import com.google.gson.JsonElement
 import com.google.gson.JsonObject
 import com.google.gson.JsonPrimitive
 import com.google.gson.JsonSyntaxException
+import com.google.gson.internal.bind.TypeAdapters
 import net.minecraft.network.FriendlyByteBuf
 import net.minecraft.network.chat.Component
 import net.minecraft.network.chat.ComponentContents
@@ -20,6 +21,7 @@ import net.minecraft.world.item.Items
 import net.minecraft.world.item.crafting.Ingredient
 import net.minecraft.world.level.ItemLike
 import net.minecraftforge.registries.ForgeRegistries
+import ru.dbotthepony.mc.otm.client.render.AbstractSkinElement
 import ru.dbotthepony.mc.otm.client.render.SkinElement
 import ru.dbotthepony.mc.otm.core.ListSet
 import ru.dbotthepony.mc.otm.core.TranslatableComponent
@@ -28,6 +30,7 @@ import ru.dbotthepony.mc.otm.core.registryName
 import ru.dbotthepony.mc.otm.core.set
 import ru.dbotthepony.mc.otm.core.toImmutableList
 import ru.dbotthepony.mc.otm.data.stream
+import ru.dbotthepony.mc.otm.isClient
 import ru.dbotthepony.mc.otm.registry.MRegistry
 import java.util.LinkedList
 import java.util.stream.Stream
@@ -88,16 +91,22 @@ class AndroidResearchType(
 	val experienceLevels: Int = 0,
 	private val customName: Component? = null,
 
-	// why pack these into research itself?
-	// because Minecraft itself does this
-	// check out advancements
-	val skinIcon: SkinElement? = null,
+	// ok
+	val skinIcon: JsonElement? = null,
 	val itemIcon: Item? = null,
 	iconText: Component? = null,
 ) {
 	private val iconTextValue = iconText?.copy()
 	val iconText get() = iconTextValue?.copy()
 
+	val resolvedSkinIcon by lazy {
+		check(isClient) { "Invalid realm" }
+		if (skinIcon != null)
+			AbstractSkinElement.fromJson(skinIcon)
+		else
+			null
+	}
+
 	data class Reference(
 		val id: ResourceLocation,
 		val isRigid: Boolean
@@ -471,7 +480,7 @@ class AndroidResearchType(
 			it["experience"] = JsonPrimitive(experienceLevels)
 
 			if (skinIcon != null) {
-				it["skin_icon"] = skinIcon.toJson()
+				it["skin_icon"] = skinIcon
 			}
 
 			if (itemIcon != null) {
@@ -511,7 +520,7 @@ class AndroidResearchType(
 		if (iconTextValue != null) buff.writeComponent(iconTextValue)
 
 		buff.writeBoolean(skinIcon != null)
-		skinIcon?.toNetwork(buff)
+		if (skinIcon != null) buff.writeUtf(skinIcon.toString())
 
 		buff.writeBoolean(itemIcon != null)
 		if (itemIcon != null) buff.writeUtf(itemIcon.registryName!!.toString())
@@ -541,7 +550,7 @@ class AndroidResearchType(
 			}
 
 			val skinIcon = if (buff.readBoolean()) {
-				SkinElement.fromNetwork(buff)
+				TypeAdapters.JSON_ELEMENT.fromJson(buff.readUtf())
 			} else {
 				null
 			}
@@ -582,7 +591,7 @@ class AndroidResearchType(
 			val experience = value["experience"]?.asInt ?: 0
 			val customName = value["custom_name"]?.let(Component.Serializer::fromJson)
 			val iconText = value["icon_text"]?.let(Component.Serializer::fromJson)
-			val skinIcon = value["skin_icon"]?.let(SkinElement.Companion::fromJson)
+			val skinIcon = value["skin_icon"]
 			val itemIcon = value["item_icon"]?.let { ForgeRegistries.ITEMS.getValue(ResourceLocation(it.asString)).let { if (it == Items.AIR) null else it } }
 
 			return AndroidResearchType(
@@ -615,7 +624,7 @@ class AndroidResearchType(
 		var description: MutableList<Component>? = null,
 		var descriptionSuppliers: MutableList<ComponentSupplier>? = null,
 		var itemIcon: Item? = null,
-		var skinIcon: SkinElement? = null,
+		var skinIcon: AbstractSkinElement? = null,
 		var iconText: Component? = null,
 	) {
 		private val items = ArrayList<Pair<Ingredient, Int>>()
@@ -629,7 +638,7 @@ class AndroidResearchType(
 			return this
 		}
 
-		fun withIcon(icon: SkinElement? = null): Builder {
+		fun withIcon(icon: AbstractSkinElement? = null): Builder {
 			this.skinIcon = icon
 			this.itemIcon = null
 			return this
@@ -840,7 +849,7 @@ class AndroidResearchType(
 				descriptionSuppliers = descriptionSuppliers ?: listOf(),
 				experienceLevels = experience,
 				customName = customName,
-				skinIcon = skinIcon,
+				skinIcon = skinIcon?.toJson(),
 				itemIcon = itemIcon,
 				iconText = iconText
 			).also { if (validate) it.validate() }

src/main/kotlin/ru/dbotthepony/mc/otm/client/ClientTickHandler.kt

@@ -25,6 +25,16 @@ fun onceClientPre(ticker: ITickable) {
 	preTickList.add(ticker, LOGGED_IN, "Not logged in")
 }
 
+fun onceClient(inTicks: Int, ticker: Runnable) {
+	check(isClient) { "Illegal side" }
+	postTimerList.add(inTicks, ticker, LOGGED_IN, "Not logged in")
+}
+
+fun onceClientPre(inTicks: Int, ticker: Runnable) {
+	check(isClient) { "Illegal side" }
+	preTimerList.add(inTicks, ticker, LOGGED_IN, "Not logged in")
+}
+
 fun tickClient(ticker: IConditionalTickable) {
 	check(isClient) { "Illegal side" }
 	postTickList.add(ticker, LOGGED_IN, "Not logged in")

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/AbstractSkinElement.kt

@@ -0,0 +1,255 @@
+package ru.dbotthepony.mc.otm.client.render
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonObject
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import com.google.gson.JsonSyntaxException
+import com.google.gson.TypeAdapter
+import com.google.gson.internal.bind.TypeAdapters
+import com.google.gson.stream.JsonReader
+import com.google.gson.stream.JsonWriter
+import com.mojang.blaze3d.systems.RenderSystem
+import com.mojang.blaze3d.vertex.PoseStack
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.resources.ResourceLocation
+import ru.dbotthepony.mc.otm.core.linearInterpolation
+import java.lang.reflect.Type
+
+sealed class AbstractSkinElement {
+	abstract val x: Float
+	abstract val y: Float
+	abstract val width: Float
+	abstract val height: Float
+	abstract val u0: Float
+	abstract val v0: Float
+	abstract val u1: Float
+	abstract val v1: Float
+	open val winding: UVWindingOrder get() = UVWindingOrder.NORMAL
+
+	abstract val texture: ResourceLocation
+
+	/**
+	 * See [ru.dbotthepony.mc.otm.client.render.clearDepth]
+	 */
+	fun clearDepth(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		width: Float = this.width,
+		height: Float = this.height,
+	) = ru.dbotthepony.mc.otm.client.render.clearDepth(stack, x, y, width, height)
+
+	@JvmOverloads
+	fun render(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		width: Float = this.width,
+		height: Float = this.height,
+		winding: UVWindingOrder = this.winding
+	) {
+		RenderSystem.setShaderTexture(0, texture)
+		RenderSystem.enableBlend()
+		RenderSystem.defaultBlendFunc()
+
+		renderRaw(stack, x, y, width, height, winding)
+	}
+
+	@JvmOverloads
+	fun render(
+		stack: PoseStack,
+		x: Double,
+		y: Double = 0.0,
+		width: Double = this.width.toDouble(),
+		height: Double = this.height.toDouble(),
+		winding: UVWindingOrder = this.winding
+	) = render(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
+
+	@JvmOverloads
+	fun renderPartial(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		width: Float = this.width,
+		height: Float = this.height,
+		winding: UVWindingOrder = this.winding
+	) {
+		RenderSystem.setShaderTexture(0, texture)
+		RenderSystem.enableBlend()
+		RenderSystem.defaultBlendFunc()
+
+		renderRawPartial(stack, x, y, width, height, winding)
+	}
+
+	@JvmOverloads
+	fun renderPartial(
+		stack: PoseStack,
+		x: Double,
+		y: Double = 0.0,
+		width: Double = this.width.toDouble(),
+		height: Double = this.height.toDouble(),
+		winding: UVWindingOrder = this.winding
+	) = renderPartial(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
+
+	@JvmOverloads
+	fun renderWidth(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		width: Float = this.width,
+		winding: UVWindingOrder = this.winding
+	) {
+		render(stack, x, y, width = width, winding = winding)
+	}
+
+	@JvmOverloads
+	fun renderWidth(
+		stack: PoseStack,
+		x: Double,
+		y: Double = 0.0,
+		width: Double = this.width.toDouble(),
+		winding: UVWindingOrder = this.winding
+	) = renderWidth(stack, x.toFloat(), y.toFloat(), width.toFloat(), winding)
+
+	@JvmOverloads
+	fun renderHeight(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		height: Float = this.height,
+		winding: UVWindingOrder = this.winding
+	) {
+		render(stack, x, y, height = height, winding = winding)
+	}
+
+	@JvmOverloads
+	fun renderHeight(
+		stack: PoseStack,
+		x: Double,
+		y: Double = 0.0,
+		height: Double = this.height.toDouble(),
+		winding: UVWindingOrder = this.winding
+	) = renderHeight(stack, x.toFloat(), y.toFloat(), height.toFloat(), winding)
+
+
+	@JvmOverloads
+	fun renderRaw(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		width: Float = this.width,
+		height: Float = this.height,
+		winding: UVWindingOrder = this.winding
+	) {
+		val winded = winding.translate(u0, v0, u1, v1)
+
+		drawTexturedRect(
+			stack,
+			x,
+			y,
+			width,
+			height,
+			winded,
+		)
+	}
+
+	@JvmOverloads
+	fun renderRaw(
+		stack: PoseStack,
+		x: Double,
+		y: Double = 0.0,
+		width: Double = this.width.toDouble(),
+		height: Double = this.height.toDouble(),
+		winding: UVWindingOrder = this.winding
+	) = renderRaw(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
+
+	@JvmOverloads
+	fun renderRawPartial(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		width: Float = this.width,
+		height: Float = this.height,
+		winding: UVWindingOrder = this.winding
+	) {
+		val u1 = (u0 + linearInterpolation(width / this.width, 0f, u1 - u0)).coerceAtLeast(0f).coerceAtMost(1f)
+		val v1 = (v0 + linearInterpolation(height / this.height, 0f, v1 - v0)).coerceAtLeast(0f).coerceAtMost(1f)
+
+		val winded = winding.translate(u0, v0, u1, v1)
+
+		drawTexturedRect(
+			stack,
+			x,
+			y,
+			width,
+			height,
+			winded,
+		)
+	}
+
+	@JvmOverloads
+	fun renderRawPartial(
+		stack: PoseStack,
+		x: Double,
+		y: Double = 0.0,
+		width: Double = this.width.toDouble(),
+		height: Double = this.height.toDouble(),
+		winding: UVWindingOrder = this.winding
+	) = renderRawPartial(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
+
+	abstract fun toJson(): JsonElement
+	abstract fun toNetwork(buff: FriendlyByteBuf)
+
+	companion object : TypeAdapter<AbstractSkinElement>(), JsonSerializer<AbstractSkinElement>, JsonDeserializer<AbstractSkinElement> {
+		fun toNetwork(value: AbstractSkinElement, buff: FriendlyByteBuf) {
+			buff.writeBoolean(value is AtlasSkinElement)
+			value.toNetwork(buff)
+		}
+
+		fun fromNetwork(buff: FriendlyByteBuf): AbstractSkinElement {
+			if (buff.readBoolean()) {
+				return AtlasSkinElement.fromNetwork(buff)
+			}
+
+			return SkinElement.fromNetwork(buff)
+		}
+
+		fun fromJson(json: JsonElement): AbstractSkinElement {
+			if (json is JsonPrimitive) {
+				return AtlasSkinElement.fromJson(json)
+			} else if (json is JsonObject) {
+				return SkinElement.fromJson(json)
+			} else {
+				throw JsonSyntaxException("Unknown element type ${json::class.qualifiedName}")
+			}
+		}
+
+		override fun write(out: JsonWriter, value: AbstractSkinElement) {
+			TypeAdapters.JSON_ELEMENT.write(out, value.toJson())
+		}
+
+		override fun read(`in`: JsonReader): AbstractSkinElement {
+			return fromJson(TypeAdapters.JSON_ELEMENT.read(`in`))
+		}
+
+		override fun serialize(
+			src: AbstractSkinElement,
+			typeOfSrc: Type,
+			context: JsonSerializationContext
+		): JsonElement {
+			return src.toJson()
+		}
+
+		override fun deserialize(
+			json: JsonElement,
+			typeOfT: Type,
+			context: JsonDeserializationContext
+		): AbstractSkinElement {
+			return fromJson(json)
+		}
+	}
+}

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/AtlasSkinElement.kt

@@ -0,0 +1,148 @@
+package ru.dbotthepony.mc.otm.client.render
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import com.google.gson.TypeAdapter
+import com.google.gson.internal.bind.TypeAdapters
+import com.google.gson.stream.JsonReader
+import com.google.gson.stream.JsonWriter
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.network.FriendlyByteBuf
+import net.minecraft.resources.ResourceLocation
+import ru.dbotthepony.mc.otm.client.onceClient
+import ru.dbotthepony.mc.otm.isClient
+import java.lang.reflect.Type
+import java.util.stream.Stream
+
+fun AtlasSkinElement(location: ResourceLocation) = AtlasSkinElement.create(location)
+
+class AtlasSkinElement private constructor(
+	val location: ResourceLocation,
+	marker: Any?
+) : AbstractSkinElement() {
+	private var changeset = -1
+	private var _textureAtlasSprite: TextureAtlasSprite? = null
+
+	private val textureAtlasSpriteImpl: TextureAtlasSprite get(): TextureAtlasSprite {
+		check(isClient) { "Invalid realm" }
+		val _textureAtlasSprite = _textureAtlasSprite
+
+		if (_textureAtlasSprite == null || changeset != WidgetAtlasHolder.INSTANCE.changeset) {
+			val get = WidgetAtlasHolder.INSTANCE.getSprite(location)
+			this._textureAtlasSprite = get
+			changeset = WidgetAtlasHolder.INSTANCE.changeset
+			return get
+		}
+
+		return _textureAtlasSprite
+	}
+
+	val textureAtlasSprite: TextureAtlasSprite get(): TextureAtlasSprite {
+		check(isWidgetAtlasAvailable) { "Atlas is not available; either we are not a client, or we are running datagen" }
+		return textureAtlasSpriteImpl
+	}
+
+	override val x get() = textureAtlasSprite.x.toFloat()
+	override val y get() = textureAtlasSprite.y.toFloat()
+	override val width get() = textureAtlasSprite.width.toFloat()
+	override val height get() = textureAtlasSprite.height.toFloat()
+
+	override val u0 get() = textureAtlasSprite.u0
+	override val v0 get() = textureAtlasSprite.v0
+	override val u1 get() = textureAtlasSprite.u1
+	override val v1 get() = textureAtlasSprite.v1
+	override val texture: ResourceLocation get() = textureAtlasSprite.atlas().location()
+
+	override fun equals(other: Any?): Boolean {
+		if (other is AtlasSkinElement)
+			return location == other.location
+
+		return super.equals(other)
+	}
+
+	override fun hashCode(): Int {
+		return WidgetAtlasHolder.INSTANCE.hashCode() xor location.hashCode()
+	}
+
+	override fun toString(): String {
+		return "AtlasSkinElement[$location]"
+	}
+
+	override fun toJson(): JsonElement {
+		return JsonPrimitive(location.toString())
+	}
+
+	override fun toNetwork(buff: FriendlyByteBuf) {
+		buff.writeResourceLocation(location)
+	}
+
+	companion object : TypeAdapter<AtlasSkinElement>(), JsonSerializer<AtlasSkinElement>, JsonDeserializer<AtlasSkinElement> {
+		private val skinElementCache = HashMap<ResourceLocation, AtlasSkinElement>()
+
+		val keys: Stream<ResourceLocation> get() = skinElementCache.keys.stream()
+
+		private fun queueRebuild() {
+			WidgetAtlasHolder.INSTANCE.queueRebuild()
+		}
+
+		private fun createImpl(location: ResourceLocation): AtlasSkinElement {
+			var element = skinElementCache[location]
+
+			if (element == null) {
+				element = AtlasSkinElement(location, null)
+				skinElementCache[location] = element
+
+				if (isWidgetAtlasAvailable) {
+					queueRebuild()
+				}
+			}
+
+			return element
+		}
+
+		@JvmStatic
+		fun create(location: ResourceLocation): AtlasSkinElement {
+			if (!isWidgetAtlasAvailable) {
+				return AtlasSkinElement(location, null)
+			}
+
+			return createImpl(location)
+		}
+
+		fun fromNetwork(buff: FriendlyByteBuf): AtlasSkinElement {
+			return create(buff.readResourceLocation())
+		}
+
+		fun fromJson(element: JsonElement): AtlasSkinElement {
+			return create(ResourceLocation.tryParse(element.asString) ?: ResourceLocation("missing"))
+		}
+
+		override fun write(out: JsonWriter, value: AtlasSkinElement) {
+			TypeAdapters.JSON_ELEMENT.write(out, value.toJson())
+		}
+
+		override fun read(`in`: JsonReader): AtlasSkinElement {
+			return fromJson(TypeAdapters.JSON_ELEMENT.read(`in`))
+		}
+
+		override fun serialize(
+			src: AtlasSkinElement,
+			typeOfSrc: Type,
+			context: JsonSerializationContext
+		): JsonElement {
+			return src.toJson()
+		}
+
+		override fun deserialize(
+			json: JsonElement,
+			typeOfT: Type,
+			context: JsonDeserializationContext
+		): AtlasSkinElement {
+			return fromJson(json)
+		}
+	}
+}

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/ResearchIcons.kt

@@ -4,64 +4,60 @@ import net.minecraft.resources.ResourceLocation
 import ru.dbotthepony.mc.otm.OverdriveThatMatters
 
 object ResearchIcons {
-	val ICONS = ResourceLocation(OverdriveThatMatters.MOD_ID, "textures/gui/android_upgrades.png")
-	val ICON_TRANSFER: SkinElement
-	val ICON_ATTACK_BOOST: SkinElement
-	val ICON_PLASMA_SHIELD_BOOST: SkinElement
-	val ICON_CLOAK: SkinElement
-	val ICON_GRAVITATIONAL_STABILIZER: SkinElement
-	val ICON_AIR_BAGS: SkinElement
-	val ICON_JUMP_BOOST: SkinElement
+	val ICON_TRANSFER: AbstractSkinElement
+	val ICON_ATTACK_BOOST: AbstractSkinElement
+	val ICON_PLASMA_SHIELD_BOOST: AbstractSkinElement
+	val ICON_CLOAK: AbstractSkinElement
+	val ICON_GRAVITATIONAL_STABILIZER: AbstractSkinElement
+	val ICON_AIR_BAGS: AbstractSkinElement
+	val ICON_JUMP_BOOST: AbstractSkinElement
 
-	val ICON_FEATHER_FALLING: SkinElement
-	val ICON_ITEM_MAGNET: SkinElement
-	val ICON_ARROW: SkinElement
-	val ICON_ARMOR: SkinElement
-	val ICON_NANOBOTS: SkinElement
-	val ICON_NIGHT_VISION: SkinElement
-	val ICON_OXYGEN_SUPPLY: SkinElement
+	val ICON_FEATHER_FALLING: AbstractSkinElement
+	val ICON_ITEM_MAGNET: AbstractSkinElement
+	val ICON_ARROW: AbstractSkinElement
+	val ICON_ARMOR: AbstractSkinElement
+	val ICON_NANOBOTS: AbstractSkinElement
+	val ICON_NIGHT_VISION: AbstractSkinElement
+	val ICON_OXYGEN_SUPPLY: AbstractSkinElement
 
-	val ICON_PLASMA_SHIELD: SkinElement
-	val ICON_SHOCKWAVE: SkinElement
-	val ICON_LIMB_OVERCLOCKING: SkinElement
-	val ICON_STEP_ASSIST: SkinElement
-	val ICON_ENDER_TELEPORT: SkinElement
-	val ICON_WIRELESS_CHARGING: SkinElement
-	val ICON_UNKNOWN: SkinElement
+	val ICON_PLASMA_SHIELD: AbstractSkinElement
+	val ICON_SHOCKWAVE: AbstractSkinElement
+	val ICON_LIMB_OVERCLOCKING: AbstractSkinElement
+	val ICON_STEP_ASSIST: AbstractSkinElement
+	val ICON_ENDER_TELEPORT: AbstractSkinElement
+	val ICON_WIRELESS_CHARGING: AbstractSkinElement
+	val ICON_UNKNOWN: AbstractSkinElement
 
-	val ICON_EXTENDED_REACH: SkinElement
-	val ICON_PHANTOM_ATTRACTOR: SkinElement
+	val ICON_EXTENDED_REACH: AbstractSkinElement
+	val ICON_PHANTOM_ATTRACTOR: AbstractSkinElement
 
 	val KOT = ResourceLocation(OverdriveThatMatters.MOD_ID,  "textures/block/ph_kitty.png").element(0f, 0f, 32f, 32f, 32f, 32f)
 
 	init {
-		val grid = SkinGrid(ICONS, 18f, 18f, 7, 7)
+		var i = 0
 
-		ICON_TRANSFER = grid.next()
-		ICON_ATTACK_BOOST = grid.next()
-		ICON_PLASMA_SHIELD_BOOST = grid.next()
-		ICON_CLOAK = grid.next()
-		ICON_GRAVITATIONAL_STABILIZER = grid.next()
-		ICON_AIR_BAGS = grid.next()
-		ICON_JUMP_BOOST = grid.next()
-
-		ICON_FEATHER_FALLING = grid.next()
-		ICON_ITEM_MAGNET = grid.next()
-		ICON_ARROW = grid.next()
-		ICON_ARMOR = grid.next()
-		ICON_NANOBOTS = grid.next()
-		ICON_NIGHT_VISION = grid.next()
-		ICON_OXYGEN_SUPPLY = grid.next()
-
-		ICON_PLASMA_SHIELD = grid.next()
-		ICON_SHOCKWAVE = grid.next()
-		ICON_LIMB_OVERCLOCKING = grid.next()
-		ICON_STEP_ASSIST = grid.next()
-		ICON_ENDER_TELEPORT = grid.next()
-		ICON_WIRELESS_CHARGING = grid.next()
-		ICON_UNKNOWN = grid.next()
-
-		ICON_EXTENDED_REACH = grid.next()
-		ICON_PHANTOM_ATTRACTOR = grid.next()
+		ICON_TRANSFER = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_ATTACK_BOOST = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_PLASMA_SHIELD_BOOST = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_CLOAK = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_GRAVITATIONAL_STABILIZER = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_AIR_BAGS = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_JUMP_BOOST = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_FEATHER_FALLING = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_ITEM_MAGNET = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_ARROW = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_ARMOR = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_NANOBOTS = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_NIGHT_VISION = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_OXYGEN_SUPPLY = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_PLASMA_SHIELD = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_SHOCKWAVE = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_LIMB_OVERCLOCKING = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_STEP_ASSIST = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_ENDER_TELEPORT = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_WIRELESS_CHARGING = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_UNKNOWN = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_EXTENDED_REACH = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
+		ICON_PHANTOM_ATTRACTOR = AtlasSkinElement(ResourceLocation(OverdriveThatMatters.MOD_ID, "android_stuff-${i++}"))
 	}
 }

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/SkinElement.kt

@@ -12,11 +12,8 @@ import com.google.gson.TypeAdapter
 import com.google.gson.internal.bind.TypeAdapters
 import com.google.gson.stream.JsonReader
 import com.google.gson.stream.JsonWriter
-import com.mojang.blaze3d.systems.RenderSystem
-import com.mojang.blaze3d.vertex.PoseStack
 import net.minecraft.network.FriendlyByteBuf
 import net.minecraft.resources.ResourceLocation
-import ru.dbotthepony.mc.otm.client.screen.panels.DockProperty
 import ru.dbotthepony.mc.otm.core.set
 import java.lang.reflect.Type
 
@@ -54,16 +51,16 @@ fun ResourceLocation.vLine(
 
 @Suppress("unused")
 data class SkinElement @JvmOverloads constructor(
-	val texture: ResourceLocation,
-	val x: Float,
-	val y: Float,
-	val width: Float,
-	val height: Float,
+	override val texture: ResourceLocation,
+	override val x: Float,
+	override val y: Float,
+	override val width: Float,
+	override val height: Float,
 	val imageWidth: Float = 256f,
 	val imageHeight: Float = 256f,
-	val winding: UVWindingOrder = UVWindingOrder.NORMAL
-) {
-	fun toJson(): JsonObject {
+	override val winding: UVWindingOrder = UVWindingOrder.NORMAL,
+) : AbstractSkinElement() {
+	override fun toJson(): JsonObject {
 		return JsonObject().also {
 			it["texture"] = JsonPrimitive(texture.toString())
 			it["x"] = JsonPrimitive(x)
@@ -76,7 +73,7 @@ data class SkinElement @JvmOverloads constructor(
 		}
 	}
 
-	fun toNetwork(buff: FriendlyByteBuf) {
+	override fun toNetwork(buff: FriendlyByteBuf) {
 		buff.writeUtf(texture.toString())
 		buff.writeFloat(x)
 		buff.writeFloat(y)
@@ -149,250 +146,8 @@ data class SkinElement @JvmOverloads constructor(
 		require(imageHeight > 0f) { "Invalid image height $imageHeight" }
 	}
 
-	/**
-	 * See [ru.dbotthepony.mc.otm.client.render.clearDepth]
-	 */
-	fun clearDepth(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		width: Float = this.width,
-		height: Float = this.height,
-	) = ru.dbotthepony.mc.otm.client.render.clearDepth(stack, x, y, width, height)
-
-	@JvmOverloads
-	fun render(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		width: Float = this.width,
-		height: Float = this.height,
-		winding: UVWindingOrder = this.winding
-	) {
-		RenderSystem.setShaderTexture(0, texture)
-		RenderSystem.enableBlend()
-		RenderSystem.defaultBlendFunc()
-
-		renderRaw(stack, x, y, width, height, winding)
-	}
-
-	@JvmOverloads
-	fun render(
-		stack: PoseStack,
-		x: Double,
-		y: Double = 0.0,
-		width: Double = this.width.toDouble(),
-		height: Double = this.height.toDouble(),
-		winding: UVWindingOrder = this.winding
-	) = render(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
-
-	@JvmOverloads
-	fun renderPartial(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		width: Float = this.width,
-		height: Float = this.height,
-		winding: UVWindingOrder = this.winding
-	) {
-		RenderSystem.setShaderTexture(0, texture)
-		RenderSystem.enableBlend()
-		RenderSystem.defaultBlendFunc()
-
-		renderRawPartial(stack, x, y, width, height, winding)
-	}
-
-	@JvmOverloads
-	fun renderPartial(
-		stack: PoseStack,
-		x: Double,
-		y: Double = 0.0,
-		width: Double = this.width.toDouble(),
-		height: Double = this.height.toDouble(),
-		winding: UVWindingOrder = this.winding
-	) = renderPartial(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
-
-	@JvmOverloads
-	fun renderWidth(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		width: Float = this.width,
-		winding: UVWindingOrder = this.winding
-	) {
-		render(stack, x, y, width = width, winding = winding)
-	}
-
-	@JvmOverloads
-	fun renderWidth(
-		stack: PoseStack,
-		x: Double,
-		y: Double = 0.0,
-		width: Double = this.width.toDouble(),
-		winding: UVWindingOrder = this.winding,
-	) = renderWidth(stack, x.toFloat(), y.toFloat(), width.toFloat(), winding)
-
-	@JvmOverloads
-	fun renderHeight(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		height: Float = this.height,
-		winding: UVWindingOrder = this.winding,
-	) {
-		render(stack, x, y, height = height, winding = winding)
-	}
-
-	@JvmOverloads
-	fun renderHeight(
-		stack: PoseStack,
-		x: Double,
-		y: Double = 0.0,
-		height: Double = this.height.toDouble(),
-		winding: UVWindingOrder = this.winding,
-	) = renderHeight(stack, x.toFloat(), y.toFloat(), height.toFloat(), winding)
-
-	val u0 = this.x / imageWidth
-	val v0 = this.y / imageHeight
-	val u1 = (this.x + width) / imageWidth
-	val v1 = (this.y + height) / imageHeight
-
-	@JvmOverloads
-	fun renderRaw(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		width: Float = this.width,
-		height: Float = this.height,
-		winding: UVWindingOrder = UVWindingOrder.NORMAL
-	) {
-		val winded = winding.translate(u0, v0, u1, v1)
-
-		drawTexturedRect(
-			stack,
-			x,
-			y,
-			width,
-			height,
-			winded,
-		)
-	}
-
-	@JvmOverloads
-	fun renderRaw(
-		stack: PoseStack,
-		x: Double,
-		y: Double = 0.0,
-		width: Double = this.width.toDouble(),
-		height: Double = this.height.toDouble(),
-		winding: UVWindingOrder = UVWindingOrder.NORMAL
-	) = renderRaw(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
-
-	@JvmOverloads
-	fun renderRawPartial(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		width: Float = this.width,
-		height: Float = this.height,
-		winding: UVWindingOrder = UVWindingOrder.NORMAL
-	) {
-		val u1 = (this.x + width) / imageWidth
-		val v1 = (this.y + height) / imageHeight
-
-		val winded = winding.translate(u0, v0, u1, v1)
-
-		drawTexturedRect(
-			stack,
-			x,
-			y,
-			width,
-			height,
-			winded,
-		)
-	}
-
-	@JvmOverloads
-	fun renderRawPartial(
-		stack: PoseStack,
-		x: Double,
-		y: Double = 0.0,
-		width: Double = this.width.toDouble(),
-		height: Double = this.height.toDouble(),
-		winding: UVWindingOrder = UVWindingOrder.NORMAL
-	) = renderRawPartial(stack, x.toFloat(), y.toFloat(), width.toFloat(), height.toFloat(), winding)
+	override val u0 = this.x / imageWidth
+	override val v0 = this.y / imageHeight
+	override val u1 = (this.x + width) / imageWidth
+	override val v1 = (this.y + height) / imageHeight
 }
-
-data class StretchingRectangleElement(
-	val topLeft: SkinElement,
-	val topRight: SkinElement,
-	val bottomLeft: SkinElement,
-	val bottomRight: SkinElement,
-	val left: SkinElement,
-	val right: SkinElement,
-	val top: SkinElement,
-	val bottom: SkinElement,
-	val middle: SkinElement,
-	val padding: DockProperty = DockProperty.EMPTY
-) {
-	fun render(
-		stack: PoseStack,
-		x: Float = 0f,
-		y: Float = 0f,
-		width: Float,
-		height: Float,
-	) {
-		val bgWidth = width - topLeft.width.coerceAtMost(bottomLeft.width) - topRight.width.coerceAtMost(bottomRight.width) - padding.left - padding.right
-		val bgHeight = height - topLeft.height.coerceAtMost(bottomLeft.height) - topRight.height.coerceAtMost(bottomRight.height) - padding.top - padding.bottom
-
-		if (bgWidth > 0 && bgHeight > 0) {
-			middle.render(stack, x + topLeft.width + padding.left, y + topLeft.height + padding.top, bgWidth, bgHeight)
-		}
-
-		top.render(stack, x + topLeft.width, y, width = width - topLeft.width - topRight.width)
-		bottom.render(stack, x + bottomLeft.width, y + height - bottom.height, width = width - bottomLeft.width - bottomRight.width)
-
-		left.render(stack, x, y + topLeft.height, height = height - topLeft.height - bottomLeft.height)
-		right.render(stack, x + width - right.width, y + topRight.height, height = height - topRight.height - bottomRight.height)
-
-		topLeft.render(stack, x, y)
-		topRight.render(stack, x + width - topRight.width, y)
-
-		bottomLeft.render(stack, x, y + height - bottomLeft.height)
-		bottomRight.render(stack, x + width - bottomRight.width, y + height - bottomLeft.height)
-	}
-
-	companion object {
-		fun square(
-			texture: ResourceLocation,
-			x: Float,
-			y: Float,
-			cornerWidth: Float,
-			cornerHeight: Float,
-			width: Float,
-			height: Float,
-			sideThickness: Float,
-			imageWidth: Float = 256f,
-			imageHeight: Float = 256f,
-		): StretchingRectangleElement {
-			val innerThickness = sideThickness.coerceAtLeast(cornerWidth).coerceAtLeast(cornerHeight)
-			val padding = sideThickness - innerThickness
-
-			return StretchingRectangleElement(
-				topLeft = texture.element(x, y, cornerWidth, cornerHeight, imageWidth, imageHeight),
-				topRight = texture.element(x + width - cornerWidth, y, cornerWidth, cornerHeight, imageWidth, imageHeight),
-				bottomLeft = texture.element(x, y + height - cornerHeight, cornerWidth, cornerHeight, imageWidth, imageHeight),
-				bottomRight = texture.element(x + width - cornerWidth, y + height - cornerHeight, cornerWidth, cornerHeight, imageWidth, imageHeight),
-
-				top = texture.element(x + cornerWidth, y, width - cornerWidth * 2f, sideThickness, imageWidth, imageHeight),
-				bottom = texture.element(x + cornerWidth, y + height - sideThickness, width - cornerWidth * 2f, sideThickness, imageWidth, imageHeight),
-				left = texture.element(x, y, sideThickness, height - cornerHeight * 2f, imageWidth, imageHeight),
-				right = texture.element(x, y + width - sideThickness, sideThickness, height - cornerHeight * 2f, imageWidth, imageHeight),
-
-				middle = texture.element(x + innerThickness, y + innerThickness, width - innerThickness * 2f, height - innerThickness * 2f, imageWidth, imageHeight),
-				padding = DockProperty(padding, padding, padding, padding)
-			)
-		}
-	}
-}
-

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/StretchingRectangleElement.kt

@@ -0,0 +1,127 @@
+package ru.dbotthepony.mc.otm.client.render
+
+import com.mojang.blaze3d.vertex.PoseStack
+import net.minecraft.resources.ResourceLocation
+import ru.dbotthepony.mc.otm.client.screen.panels.DockProperty
+
+data class StretchingRectangleElement(
+	val topLeft: AbstractSkinElement,
+	val topRight: AbstractSkinElement,
+	val bottomLeft: AbstractSkinElement,
+	val bottomRight: AbstractSkinElement,
+	val left: AbstractSkinElement,
+	val right: AbstractSkinElement,
+	val top: AbstractSkinElement,
+	val bottom: AbstractSkinElement,
+	val middle: AbstractSkinElement,
+	val padding: DockProperty = DockProperty.EMPTY
+) {
+	fun render(
+		stack: PoseStack,
+		x: Float = 0f,
+		y: Float = 0f,
+		width: Float,
+		height: Float,
+	) {
+		val bgWidth = width - topLeft.width.coerceAtMost(bottomLeft.width) - topRight.width.coerceAtMost(bottomRight.width) - padding.left - padding.right
+		val bgHeight = height - topLeft.height.coerceAtMost(bottomLeft.height) - topRight.height.coerceAtMost(bottomRight.height) - padding.top - padding.bottom
+
+		if (bgWidth > 0 && bgHeight > 0) {
+			middle.render(stack, x + topLeft.width + padding.left, y + topLeft.height + padding.top, bgWidth, bgHeight)
+		}
+
+		top.render(stack, x + topLeft.width, y, width = width - topLeft.width - topRight.width)
+		bottom.render(stack, x + bottomLeft.width, y + height - bottom.height, width = width - bottomLeft.width - bottomRight.width)
+
+		left.render(stack, x, y + topLeft.height, height = height - topLeft.height - bottomLeft.height)
+		right.render(stack, x + width - right.width, y + topRight.height, height = height - topRight.height - bottomRight.height)
+
+		topLeft.render(stack, x, y)
+		topRight.render(stack, x + width - topRight.width, y)
+
+		bottomLeft.render(stack, x, y + height - bottomLeft.height)
+		bottomRight.render(stack, x + width - bottomRight.width, y + height - bottomLeft.height)
+	}
+
+	companion object {
+		fun square(
+			texture: ResourceLocation,
+			x: Float,
+			y: Float,
+			cornerWidth: Float,
+			cornerHeight: Float,
+			width: Float,
+			height: Float,
+			sideThickness: Float,
+			imageWidth: Float = 256f,
+			imageHeight: Float = 256f,
+		): StretchingRectangleElement {
+			val innerThickness = sideThickness.coerceAtLeast(cornerWidth).coerceAtLeast(cornerHeight)
+			val padding = sideThickness - innerThickness
+
+			return StretchingRectangleElement(
+				topLeft = texture.element(x, y, cornerWidth, cornerHeight, imageWidth, imageHeight),
+				topRight = texture.element(
+					x + width - cornerWidth,
+					y,
+					cornerWidth,
+					cornerHeight,
+					imageWidth,
+					imageHeight
+				),
+				bottomLeft = texture.element(
+					x,
+					y + height - cornerHeight,
+					cornerWidth,
+					cornerHeight,
+					imageWidth,
+					imageHeight
+				),
+				bottomRight = texture.element(
+					x + width - cornerWidth,
+					y + height - cornerHeight,
+					cornerWidth,
+					cornerHeight,
+					imageWidth,
+					imageHeight
+				),
+
+				top = texture.element(
+					x + cornerWidth,
+					y,
+					width - cornerWidth * 2f,
+					sideThickness,
+					imageWidth,
+					imageHeight
+				),
+				bottom = texture.element(
+					x + cornerWidth,
+					y + height - sideThickness,
+					width - cornerWidth * 2f,
+					sideThickness,
+					imageWidth,
+					imageHeight
+				),
+				left = texture.element(x, y, sideThickness, height - cornerHeight * 2f, imageWidth, imageHeight),
+				right = texture.element(
+					x,
+					y + width - sideThickness,
+					sideThickness,
+					height - cornerHeight * 2f,
+					imageWidth,
+					imageHeight
+				),
+
+				middle = texture.element(
+					x + innerThickness,
+					y + innerThickness,
+					width - innerThickness * 2f,
+					height - innerThickness * 2f,
+					imageWidth,
+					imageHeight
+				),
+				padding = DockProperty(padding, padding, padding, padding)
+			)
+		}
+	}
+}

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/WidgetAtlasHolder.kt

@@ -0,0 +1,78 @@
+package ru.dbotthepony.mc.otm.client.render
+
+import net.minecraft.client.renderer.texture.TextureAtlas
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.client.renderer.texture.TextureManager
+import net.minecraft.client.resources.TextureAtlasHolder
+import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.packs.resources.ReloadableResourceManager
+import net.minecraft.server.packs.resources.ResourceManager
+import net.minecraft.util.profiling.ProfilerFiller
+import net.minecraftforge.client.event.RegisterClientReloadListenersEvent
+import ru.dbotthepony.mc.otm.OverdriveThatMatters
+import ru.dbotthepony.mc.otm.client.minecraft
+import ru.dbotthepony.mc.otm.client.onceClient
+import ru.dbotthepony.mc.otm.registry.WriteOnce
+import java.util.stream.Stream
+import kotlin.properties.Delegates
+
+var isWidgetAtlasAvailable: Boolean = false
+	private set
+
+class WidgetAtlasHolder private constructor(manager: TextureManager) : TextureAtlasHolder(manager, LOCATION, "gui") {
+	var changeset = 0
+		private set
+
+	private var queued = false
+	private var once = false
+
+	private var resourceManager by Delegates.notNull<ResourceManager>()
+	private var profileManager by Delegates.notNull<ProfilerFiller>()
+
+	override fun prepare(p_118891_: ResourceManager, p_118892_: ProfilerFiller): TextureAtlas.Preparations {
+		once = true
+		resourceManager = p_118891_
+		profileManager = p_118892_
+		return super.prepare(p_118891_, p_118892_)
+	}
+
+	public override fun getSprite(p_118902_: ResourceLocation): TextureAtlasSprite {
+		if (!once) {
+			throw IllegalStateException("Trying to get sprite too early")
+		}
+
+		return super.getSprite(p_118902_)
+	}
+
+	fun queueRebuild() {
+		if (!queued && once) {
+			queued = true
+
+			onceClient(20) {
+				queued = false
+				apply(prepare(resourceManager, profileManager), resourceManager, profileManager)
+			}
+		}
+	}
+
+	override fun getResourcesToLoad(): Stream<ResourceLocation> {
+		changeset++
+		return AtlasSkinElement.keys
+	}
+
+	companion object {
+		@JvmStatic
+		val LOCATION = ResourceLocation(OverdriveThatMatters.MOD_ID, "textures/atlas/gui.png")
+
+		@JvmStatic
+		var INSTANCE: WidgetAtlasHolder by WriteOnce()
+			private set
+
+		@JvmStatic
+		fun register(event: RegisterClientReloadListenersEvent) {
+			INSTANCE = WidgetAtlasHolder(minecraft.textureManager)
+			event.registerReloadListener(INSTANCE)
+			isWidgetAtlasAvailable = true
+		}
+	}
+}

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

@@ -303,7 +303,7 @@ private class AndroidResearchButton(
 			AndroidStationScreen.CAN_NOT_BE_RESEARCHED.setSystemColor()
 		}
 
-		val icon = node.type.skinIcon
+		val icon = node.type.resolvedSkinIcon
 		val itemIcon = node.type.itemIcon
 
 		if (icon != null) {

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

@@ -1,5 +1,7 @@
 package ru.dbotthepony.mc.otm.core
 
+import org.apache.logging.log4j.LogManager
+
 class TimerQueue {
 	private var ticks = 0
 	private val list = ArrayDeque<Timer>()
@@ -48,6 +50,15 @@ class TimerQueue {
 		}
 	}
 
+	fun add(timerTicks: Int, ticker: Runnable, condition: Boolean, reason: String): Timer? {
+		if (!condition) {
+			LOGGER.error("Refusing to add timer $ticker in $timerTicks ticks because we $reason", IllegalStateException(reason))
+			return null
+		}
+
+		return Timer(timerTicks, ticker)
+	}
+
 	fun tick() {
 		ticks++
 
@@ -67,4 +78,8 @@ class TimerQueue {
 		ticks = 0
 		list.clear()
 	}
+
+	companion object {
+		private val LOGGER = LogManager.getLogger()
+	}
 }

src/main/resources/META-INF/accesstransformer.cfg

@@ -45,3 +45,5 @@ protected net.minecraft.client.gui.screens.inventory.AbstractContainerScreen m_9
 protected net.minecraft.client.gui.screens.inventory.AbstractContainerScreen m_97818_()V # recalculateQuickCraftRemaining
 protected net.minecraft.client.gui.screens.inventory.AbstractContainerScreen m_97744_(DD)Lnet/minecraft/world/inventory/Slot; # findSlot
 protected net.minecraft.client.gui.screens.inventory.AbstractContainerScreen m_97782_(Lnet/minecraft/world/item/ItemStack;IILjava/lang/String;)V # renderFloatingItem
+
+protected net.minecraft.client.resources.TextureAtlasHolder f_118884_ # textureAtlas