feat: Highlight century cake slice players

18 files changed, 559 insertions, 3 deletions

diff --git a/build.gradle.kts b/build.gradle.kts
index 1a31f16..40eb5d8 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -6,15 +6,21 @@
  * SPDX-License-Identifier: GPL-3.0-or-later
  */
 
+import com.google.common.hash.Hashing
 import com.google.devtools.ksp.gradle.KspTaskJvm
 import com.google.gson.Gson
 import com.google.gson.JsonObject
 import moe.nea.licenseextractificator.LicenseDiscoveryTask
 import moe.nea.mcautotranslations.gradle.CollectTranslations
 import net.fabricmc.loom.LoomGradleExtension
+import org.apache.tools.ant.taskdefs.condition.Os
+import org.gradle.platform.OperatingSystem
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import org.jetbrains.kotlin.gradle.plugin.SubpluginOption
+import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsPlugin.Companion.kotlinNodeJsEnvSpec
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import java.nio.charset.StandardCharsets
+import java.util.Base64
 
 plugins {
 	java
@@ -337,9 +343,9 @@ loom {
 		named("client") {
 			property("devauth.enabled", "true")
 			vmArg("-ea")
-			vmArg("-XX:+AllowEnhancedClassRedefinition")
-			vmArg("-XX:HotswapAgent=external")
-			vmArg("-javaagent:${hotswap.resolve().single().absolutePath}")
+//			vmArg("-XX:+AllowEnhancedClassRedefinition")
+//			vmArg("-XX:HotswapAgent=external")
+//			vmArg("-javaagent:${hotswap.resolve().single().absolutePath}")
 		}
 	}
 }
@@ -463,6 +469,70 @@ tasks.create("printAllLicenses", LicenseDiscoveryTask::class.java, licensing).ap
 	}
 	outputs.upToDateWhen { false }
 }
+fun patchRenderDoc(
+	javaLauncher: JavaLauncher,
+): JavaLauncher {
+	val wrappedJavaExecutable = javaLauncher.executablePath.asFile.absolutePath
+	require("\"" !in wrappedJavaExecutable)
+	val hashBytes = Hashing.sha256().hashString(wrappedJavaExecutable, StandardCharsets.UTF_8)
+	val hash = Base64.getUrlEncoder().encodeToString(hashBytes.asBytes())
+		.replace("=", "")
+	val wrapperJavaRoot = rootProject.layout.buildDirectory
+		.dir("binaries/renderdoc-wrapped-java/$hash/")
+		.get()
+	val isWindows = Os.isFamily(Os.FAMILY_WINDOWS)
+	val wrapperJavaExe =
+		if (isWindows) wrapperJavaRoot.file("java.cmd")
+		else wrapperJavaRoot.file("java")
+	return object : JavaLauncher {
+		override fun getMetadata(): JavaInstallationMetadata {
+			return object : JavaInstallationMetadata by javaLauncher.metadata {
+				override fun isCurrentJvm(): Boolean {
+					return false
+				}
+			}
+		}
+
+		override fun getExecutablePath(): RegularFile {
+			val fileF = wrapperJavaExe.asFile
+			if (!fileF.exists()) {
+				fileF.parentFile.mkdirs()
+				if (isWindows) {
+					fileF.writeText("""
+					setlocal enableextensions
+					start "" renderdoccmd.exe capture --opt-hook-children --wait-for-exit --working-dir . "$wrappedJavaExecutable" %*
+					endlocal
+					""".trimIndent())
+				} else {
+					fileF.writeText("""
+					#!/usr/bin/env bash
+					exec renderdoccmd capture --opt-hook-children --wait-for-exit --working-dir . "$wrappedJavaExecutable" "$@"
+					""".trimIndent())
+					fileF.setExecutable(true)
+				}
+			}
+			return wrapperJavaExe
+		}
+	}
+}
+tasks.runClient {
+	javaLauncher.set(javaToolchains.launcherFor(java.toolchain).map { patchRenderDoc(it) })
+}
+//tasks.register<Exec>("runRenderDoc") {
+//	val runClient = tasks.runClient.get()
+//	commandLine(
+//		"renderdoc",
+//		"capture",
+//		"--opt-hook-children",
+//		"--wait-for-exit",
+//		"--working-dir",
+//		runClient.workingDir,
+//		runClient.javaLauncher.get().executablePath.asFile.absoluteFile,
+//	)
+//	args(runClient.allJvmArgs)
+//	args()
+//
+//}
 
 tasks.withType<AbstractArchiveTask>().configureEach {
 	isPreserveFileTimestamps = false
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/ChangeColorOfLivingEntities.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/ChangeColorOfLivingEntities.java
new file mode 100644
index 0000000..2b96e5c
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/ChangeColorOfLivingEntities.java
@@ -0,0 +1,62 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import com.llamalad7.mixinextras.injector.ModifyReturnValue;
+import com.llamalad7.mixinextras.sugar.Local;
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import net.minecraft.client.render.VertexConsumerProvider;
+import net.minecraft.client.render.entity.LivingEntityRenderer;
+import net.minecraft.client.render.entity.model.EntityModel;
+import net.minecraft.client.render.entity.state.LivingEntityRenderState;
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.entity.LivingEntity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.ModifyArg;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+/**
+ * Applies various rendering modifications from {@link EntityRenderTintEvent}
+ */
+@Mixin(LivingEntityRenderer.class)
+public class ChangeColorOfLivingEntities<T extends LivingEntity, S extends LivingEntityRenderState, M extends EntityModel<? super S>> {
+	@ModifyReturnValue(method = "getMixColor", at = @At("RETURN"))
+	private int changeColor(int original, @Local(argsOnly = true) S state) {
+		var tintState = EntityRenderTintEvent.HasTintRenderState.cast(state);
+		if (tintState.getHasTintOverride_firmament())
+			return tintState.getTint_firmament();
+		return original;
+	}
+
+	@ModifyArg(
+		method = "getOverlay",
+		at = @At(value = "INVOKE", target = "Lnet/minecraft/client/render/OverlayTexture;getU(F)I"),
+		allow = 1
+	)
+	private static float modifyLightOverlay(float originalWhiteOffset, @Local(argsOnly = true) LivingEntityRenderState state) {
+		var tintState = EntityRenderTintEvent.HasTintRenderState.cast(state);
+		if (tintState.getHasTintOverride_firmament() || tintState.getOverlayTexture_firmament() != null) {
+			return 1F; // TODO: add interpolation percentage to render state extension
+		}
+		return originalWhiteOffset;
+	}
+
+	@Inject(method = "render(Lnet/minecraft/client/render/entity/state/LivingEntityRenderState;Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider;I)V", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/util/math/MatrixStack;pop()V"))
+	private void afterRender(S livingEntityRenderState, MatrixStack matrixStack, VertexConsumerProvider vertexConsumerProvider, int i, CallbackInfo ci) {
+		var tintState = EntityRenderTintEvent.HasTintRenderState.cast(livingEntityRenderState);
+		var overlayTexture = tintState.getOverlayTexture_firmament();
+		if (overlayTexture != null && vertexConsumerProvider instanceof VertexConsumerProvider.Immediate imm) {
+			imm.drawCurrentLayer();
+		}
+		EntityRenderTintEvent.overlayOverride = null;
+	}
+
+	@Inject(method = "render(Lnet/minecraft/client/render/entity/state/LivingEntityRenderState;Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider;I)V", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/util/math/MatrixStack;push()V"))
+	private void beforeRender(S livingEntityRenderState, MatrixStack matrixStack, VertexConsumerProvider vertexConsumerProvider, int i, CallbackInfo ci) {
+		var tintState = EntityRenderTintEvent.HasTintRenderState.cast(livingEntityRenderState);
+		var overlayTexture = tintState.getOverlayTexture_firmament();
+		if (overlayTexture != null) {
+			EntityRenderTintEvent.overlayOverride = overlayTexture;
+		}
+	}
+}
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/EntityRenderStateTint.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/EntityRenderStateTint.java
new file mode 100644
index 0000000..1019027
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/EntityRenderStateTint.java
@@ -0,0 +1,55 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import moe.nea.firmament.util.render.TintedOverlayTexture;
+import net.minecraft.client.render.entity.state.EntityRenderState;
+import org.jetbrains.annotations.Nullable;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+
+@Mixin(EntityRenderState.class)
+public class EntityRenderStateTint implements EntityRenderTintEvent.HasTintRenderState {
+	@Unique
+	int tint = -1;
+	@Unique
+	TintedOverlayTexture overlayTexture;
+	@Unique
+	boolean hasTintOverride = false;
+
+	@Override
+	public int getTint_firmament() {
+		return tint;
+	}
+
+	@Override
+	public void setTint_firmament(int i) {
+		tint = i;
+		hasTintOverride = true;
+	}
+
+	@Override
+	public boolean getHasTintOverride_firmament() {
+		return hasTintOverride;
+	}
+
+	@Override
+	public void setHasTintOverride_firmament(boolean b) {
+		hasTintOverride = b;
+	}
+
+	@Override
+	public void reset_firmament() {
+		hasTintOverride = false;
+		overlayTexture = null;
+	}
+
+	@Override
+	public @Nullable TintedOverlayTexture getOverlayTexture_firmament() {
+		return overlayTexture;
+	}
+
+	@Override
+	public void setOverlayTexture_firmament(@Nullable TintedOverlayTexture tintedOverlayTexture) {
+		this.overlayTexture = tintedOverlayTexture;
+	}
+}
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/InjectIntoRenderState.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/InjectIntoRenderState.java
new file mode 100644
index 0000000..7938340
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/InjectIntoRenderState.java
@@ -0,0 +1,30 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import net.minecraft.client.render.entity.EntityRenderer;
+import net.minecraft.client.render.entity.state.EntityRenderState;
+import net.minecraft.entity.Entity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+/**
+ * Dispatches {@link EntityRenderTintEvent} to collect additional render state used by {@link ChangeColorOfLivingEntities}
+ */
+@Mixin(EntityRenderer.class)
+public class InjectIntoRenderState<T extends Entity, S extends EntityRenderState> {
+
+	@Inject(
+		method = "updateRenderState",
+		at = @At("RETURN"))
+	private void onUpdateRenderState(T entity, S state, float tickDelta, CallbackInfo ci) {
+		var renderState = EntityRenderTintEvent.HasTintRenderState.cast(state);
+		renderState.reset_firmament();
+		var tintEvent = new EntityRenderTintEvent(
+			entity,
+			renderState
+		);
+		EntityRenderTintEvent.Companion.publish(tintEvent);
+	}
+}
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/ReplaceOverlayTexture.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/ReplaceOverlayTexture.java
new file mode 100644
index 0000000..61e5c65
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/ReplaceOverlayTexture.java
@@ -0,0 +1,24 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import net.minecraft.client.render.OverlayTexture;
+import net.minecraft.client.render.RenderLayer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+/**
+ * Replaces the overlay texture used by rendering with the override specified in {@link EntityRenderTintEvent#overlayOverride}
+ */
+@Mixin(RenderLayer.Overlay.class)
+public class ReplaceOverlayTexture {
+	@ModifyExpressionValue(
+		method = {"method_23555", "method_23556"},
+		expect = 2,
+		at = @At(value = "INVOKE", target = "Lnet/minecraft/client/render/GameRenderer;getOverlayTexture()Lnet/minecraft/client/render/OverlayTexture;"))
+	private static OverlayTexture replaceOverlayTexture(OverlayTexture original) {
+		if (EntityRenderTintEvent.overlayOverride != null)
+			return EntityRenderTintEvent.overlayOverride;
+		return original;
+	}
+}
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableEquipmentRenderer.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableEquipmentRenderer.java
new file mode 100644
index 0000000..d9c174c
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableEquipmentRenderer.java
@@ -0,0 +1,34 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
+import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import net.minecraft.client.render.OverlayTexture;
+import net.minecraft.client.render.RenderLayer;
+import net.minecraft.client.render.entity.equipment.EquipmentRenderer;
+import net.minecraft.util.Identifier;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+/**
+ * Patch to make {@link EquipmentRenderer} use a {@link RenderLayer} that allows uses Minecraft's overlay texture, if a {@link EntityRenderTintEvent#overlayOverride} is specified.
+ */
+@Mixin(EquipmentRenderer.class)
+public class UseOverlayableEquipmentRenderer {
+	@WrapOperation(method = "render(Lnet/minecraft/client/render/entity/equipment/EquipmentModel$LayerType;Lnet/minecraft/registry/RegistryKey;Lnet/minecraft/client/model/Model;Lnet/minecraft/item/ItemStack;Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider;ILnet/minecraft/util/Identifier;)V",
+		at = @At(value = "INVOKE", target = "Lnet/minecraft/client/render/RenderLayer;getArmorCutoutNoCull(Lnet/minecraft/util/Identifier;)Lnet/minecraft/client/render/RenderLayer;"))
+	private RenderLayer replace(Identifier texture, Operation<RenderLayer> original) {
+		if (EntityRenderTintEvent.overlayOverride != null)
+			return RenderLayer.getEntityTranslucent(texture);
+		return original.call(texture);
+	}
+
+	@ModifyExpressionValue(method = "render(Lnet/minecraft/client/render/entity/equipment/EquipmentModel$LayerType;Lnet/minecraft/registry/RegistryKey;Lnet/minecraft/client/model/Model;Lnet/minecraft/item/ItemStack;Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider;ILnet/minecraft/util/Identifier;)V",
+		at = @At(value = "FIELD", target = "Lnet/minecraft/client/render/OverlayTexture;DEFAULT_UV:I"))
+	private int replaceUvIndex(int original) {
+		if (EntityRenderTintEvent.overlayOverride != null)
+			return OverlayTexture.packUv(15, 10); // TODO: store this info in a global alongside overlayOverride
+		return original;
+	}
+}
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableHeadFeatureRenderer.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableHeadFeatureRenderer.java
new file mode 100644
index 0000000..07bc5cf
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableHeadFeatureRenderer.java
@@ -0,0 +1,25 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import net.minecraft.client.render.OverlayTexture;
+import net.minecraft.client.render.RenderLayer;
+import net.minecraft.client.render.entity.feature.HeadFeatureRenderer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+/**
+ * Patch to make {@link HeadFeatureRenderer} use a {@link RenderLayer} that allows uses Minecraft's overlay texture, if a {@link EntityRenderTintEvent#overlayOverride} is specified.
+ * @see UseOverlayableItemRenderer
+ */
+@Mixin(HeadFeatureRenderer.class)
+public class UseOverlayableHeadFeatureRenderer {
+
+	@ModifyExpressionValue(method = "render(Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider;ILnet/minecraft/client/render/entity/state/LivingEntityRenderState;FF)V",
+		at = @At(value = "FIELD", target = "Lnet/minecraft/client/render/OverlayTexture;DEFAULT_UV:I"))
+	private int replaceUvIndex(int original) {
+		if (EntityRenderTintEvent.overlayOverride != null)
+			return OverlayTexture.packUv(15, 10); // TODO: store this info in a global alongside overlayOverride
+		return original;
+	}
+}
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableItemRenderer.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableItemRenderer.java
new file mode 100644
index 0000000..620ab2c
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableItemRenderer.java
@@ -0,0 +1,25 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import net.minecraft.client.render.OverlayTexture;
+import net.minecraft.client.render.RenderLayer;
+import net.minecraft.client.render.RenderPhase;
+import net.minecraft.client.render.item.ItemRenderState;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+/**
+ * Patch to make {@link ItemRenderState} use a {@link RenderLayer} that allows uses Minecraft's overlay texture.
+ *
+ * @see UseOverlayableHeadFeatureRenderer
+ */
+@Mixin(ItemRenderState.LayerRenderState.class)
+public class UseOverlayableItemRenderer {
+	@ModifyExpressionValue(method = "render", at = @At(value = "FIELD", target = "Lnet/minecraft/client/render/item/ItemRenderState$LayerRenderState;renderLayer:Lnet/minecraft/client/render/RenderLayer;"))
+	private RenderLayer replace(RenderLayer original) {
+		if (EntityRenderTintEvent.overlayOverride != null && original instanceof RenderLayer.MultiPhase multiPhase && multiPhase.phases.texture instanceof RenderPhase.Texture texture && texture.getId().isPresent())
+			return RenderLayer.getEntityTranslucent(texture.getId().get());
+		return original;
+	}
+}
diff --git a/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableSkullBlockEntityRenderer.java b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableSkullBlockEntityRenderer.java
new file mode 100644
index 0000000..9905af1
--- /dev/null
+++ b/src/main/java/moe/nea/firmament/mixins/render/entitytints/UseOverlayableSkullBlockEntityRenderer.java
@@ -0,0 +1,25 @@
+package moe.nea.firmament.mixins.render.entitytints;
+
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import moe.nea.firmament.events.EntityRenderTintEvent;
+import net.minecraft.client.render.OverlayTexture;
+import net.minecraft.client.render.RenderLayer;
+import net.minecraft.client.render.block.entity.SkullBlockEntityRenderer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+/**
+ * Patch to make {@link SkullBlockEntityRenderer} use a {@link RenderLayer} that allows uses Minecraft's overlay texture, if a {@link EntityRenderTintEvent#overlayOverride} is specified.
+ */
+
+@Mixin(SkullBlockEntityRenderer.class)
+public class UseOverlayableSkullBlockEntityRenderer {
+	@ModifyExpressionValue(method = "renderSkull",
+		at = @At(value = "FIELD", target = "Lnet/minecraft/client/render/OverlayTexture;DEFAULT_UV:I"))
+	private static int replaceUvIndex(int original) {
+		if (EntityRenderTintEvent.overlayOverride != null)
+			return OverlayTexture.packUv(15, 10); // TODO: store this info in a global alongside overlayOverride
+		return original;
+	}
+
+}
diff --git a/src/main/kotlin/commands/rome.kt b/src/main/kotlin/commands/rome.kt
index 13acb3c..5412792 100644
--- a/src/main/kotlin/commands/rome.kt
+++ b/src/main/kotlin/commands/rome.kt
@@ -254,6 +254,7 @@ fun firmamentCommand() = literal("firmament") {
 				val player = MC.player ?: return@thenExecute
 				player.world.getOtherEntities(player, player.boundingBox.expand(12.0))
 					.forEach(PowerUserTools::showEntity)
+				PowerUserTools.showEntity(player)
 			}
 		}
 		thenLiteral("callUrsa") {
diff --git a/src/main/kotlin/events/EntityRenderTintEvent.kt b/src/main/kotlin/events/EntityRenderTintEvent.kt
new file mode 100644
index 0000000..29b888b
--- /dev/null
+++ b/src/main/kotlin/events/EntityRenderTintEvent.kt
@@ -0,0 +1,66 @@
+package moe.nea.firmament.events
+
+import net.minecraft.client.render.GameRenderer
+import net.minecraft.client.render.OverlayTexture
+import net.minecraft.client.render.entity.state.EntityRenderState
+import net.minecraft.entity.Entity
+import net.minecraft.entity.LivingEntity
+import moe.nea.firmament.util.render.TintedOverlayTexture
+
+/**
+ * Change the tint color of a [LivingEntity]
+ */
+class EntityRenderTintEvent(
+	val entity: Entity,
+	val renderState: HasTintRenderState
+) : FirmamentEvent.Cancellable() {
+	init {
+		if (entity !is LivingEntity) {
+			cancel()
+		}
+	}
+
+	companion object : FirmamentEventBus<EntityRenderTintEvent>() {
+		/**
+		 * Static variable containing an override for [GameRenderer.getOverlayTexture]. Should be only set briefly.
+		 *
+		 * This variable only affects render layers that naturally make use of the overlay texture, have proper overlay UVs set (`overlay u != 0`), and have a shader that makes use of the overlay (does not have the `NO_OVERLAY` flag set in its json definition).
+		 *
+		 * Currently supported layers: [net.minecraft.client.render.entity.equipment.EquipmentRenderer], [net.minecraft.client.render.entity.model.PlayerEntityModel], as well as some others naturally.
+		 *
+		 * @see moe.nea.firmament.mixins.render.entitytints.ReplaceOverlayTexture
+		 * @see TintedOverlayTexture
+		 */
+		@JvmField
+		var overlayOverride: OverlayTexture? = null
+	}
+
+	@Suppress("PropertyName", "FunctionName")
+	interface HasTintRenderState {
+		/**
+		 * Multiplicative tint applied before the overlay.
+		 */
+		var tint_firmament: Int
+
+		/**
+		 * Must be set for [tint_firmament] to have any effect.
+		 */
+		var hasTintOverride_firmament: Boolean
+
+		// TODO: allow for more specific selection of which layers get tinted
+		/**
+		 * Specify a [TintedOverlayTexture] to be used. This does not apply to render layers not using the overlay texture.
+		 * @see overlayOverride
+		 */
+		var overlayTexture_firmament: TintedOverlayTexture?
+		fun reset_firmament()
+
+		companion object {
+			@JvmStatic
+			fun cast(state: EntityRenderState): HasTintRenderState {
+				return state as HasTintRenderState
+			}
+		}
+	}
+
+}
diff --git a/src/main/kotlin/features/debug/PowerUserTools.kt b/src/main/kotlin/features/debug/PowerUserTools.kt
index ac7a6fb..8be5d5d 100644
--- a/src/main/kotlin/features/debug/PowerUserTools.kt
+++ b/src/main/kotlin/features/debug/PowerUserTools.kt
@@ -1,22 +1,31 @@
 package moe.nea.firmament.features.debug
 
+import com.mojang.serialization.Codec
+import com.mojang.serialization.DynamicOps
 import com.mojang.serialization.JsonOps
+import com.mojang.serialization.codecs.RecordCodecBuilder
 import kotlin.jvm.optionals.getOrNull
 import net.minecraft.block.SkullBlock
 import net.minecraft.block.entity.SkullBlockEntity
 import net.minecraft.component.DataComponentTypes
 import net.minecraft.component.type.ProfileComponent
 import net.minecraft.entity.Entity
+import net.minecraft.entity.EntityType
 import net.minecraft.entity.LivingEntity
 import net.minecraft.item.ItemStack
 import net.minecraft.item.Items
+import net.minecraft.nbt.NbtCompound
 import net.minecraft.nbt.NbtOps
+import net.minecraft.nbt.NbtString
+import net.minecraft.predicate.NbtPredicate
 import net.minecraft.text.Text
 import net.minecraft.text.TextCodecs
 import net.minecraft.util.Identifier
 import net.minecraft.util.hit.BlockHitResult
 import net.minecraft.util.hit.EntityHitResult
 import net.minecraft.util.hit.HitResult
+import net.minecraft.util.math.Position
+import net.minecraft.util.math.Vec3d
 import moe.nea.firmament.annotations.Subscribe
 import moe.nea.firmament.events.CustomItemModelEvent
 import moe.nea.firmament.events.HandledScreenKeyPressedEvent
@@ -31,6 +40,7 @@ import moe.nea.firmament.util.ClipboardUtils
 import moe.nea.firmament.util.MC
 import moe.nea.firmament.util.focusedItemStack
 import moe.nea.firmament.util.mc.IntrospectableItemModelManager
+import moe.nea.firmament.util.mc.SNbtFormatter
 import moe.nea.firmament.util.mc.SNbtFormatter.Companion.toPrettyString
 import moe.nea.firmament.util.mc.displayNameAccordingToNbt
 import moe.nea.firmament.util.mc.loreAccordingToNbt
@@ -88,6 +98,11 @@ object PowerUserTools : FirmamentFeature {
 	}
 
 	fun showEntity(target: Entity) {
+		val nbt = NbtPredicate.entityToNbt(target)
+		nbt.remove("Inventory")
+		nbt.put("StyledName", TextCodecs.CODEC.encodeStart(NbtOps.INSTANCE, target.styledDisplayName).orThrow)
+		println(SNbtFormatter.prettify(nbt))
+		ClipboardUtils.setTextContent(SNbtFormatter.prettify(nbt))
 		MC.sendChat(Text.translatable("firmament.poweruser.entity.type", target.type))
 		MC.sendChat(Text.translatable("firmament.poweruser.entity.name", target.name))
 		MC.sendChat(Text.stringifiedTranslatable("firmament.poweruser.entity.position", target.pos))
diff --git a/src/main/kotlin/features/events/anniversity/CenturyRaffleFeatures.kt b/src/main/kotlin/features/events/anniversity/CenturyRaffleFeatures.kt
new file mode 100644
index 0000000..9935051
--- /dev/null
+++ b/src/main/kotlin/features/events/anniversity/CenturyRaffleFeatures.kt
@@ -0,0 +1,63 @@
+package moe.nea.firmament.features.events.anniversity
+
+import java.util.Optional
+import me.shedaniel.math.Color
+import kotlin.jvm.optionals.getOrNull
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.text.Style
+import net.minecraft.util.Formatting
+import moe.nea.firmament.annotations.Subscribe
+import moe.nea.firmament.events.EntityRenderTintEvent
+import moe.nea.firmament.gui.config.ManagedConfig
+import moe.nea.firmament.util.MC
+import moe.nea.firmament.util.SkyblockId
+import moe.nea.firmament.util.render.TintedOverlayTexture
+import moe.nea.firmament.util.skyBlockId
+import moe.nea.firmament.util.skyblock.SkyBlockItems
+
+object CenturyRaffleFeatures {
+	object TConfig : ManagedConfig("centuryraffle", Category.EVENTS) {
+		val highlightPlayersForSlice by toggle("highlight-cake-players") { true }
+//		val highlightAllPlayers by toggle("highlight-all-cake-players") { true }
+	}
+
+	val cakeIcon = "⛃"
+
+	val cakeColors = listOf(
+		CakeTeam(SkyBlockItems.SLICE_OF_BLUEBERRY_CAKE, Formatting.BLUE),
+		CakeTeam(SkyBlockItems.SLICE_OF_CHEESECAKE, Formatting.YELLOW),
+		CakeTeam(SkyBlockItems.SLICE_OF_GREEN_VELVET_CAKE, Formatting.GREEN),
+		CakeTeam(SkyBlockItems.SLICE_OF_RED_VELVET_CAKE, Formatting.RED),
+		CakeTeam(SkyBlockItems.SLICE_OF_STRAWBERRY_SHORTCAKE, Formatting.LIGHT_PURPLE),
+	)
+
+	data class CakeTeam(
+		val id: SkyblockId,
+		val formatting: Formatting,
+	) {
+		val searchedTextRgb = formatting.colorValue!!
+		val brightenedRgb = Color.ofOpaque(searchedTextRgb)//.brighter(2.0)
+		val tintOverlay by lazy {
+			TintedOverlayTexture().setColor(brightenedRgb)
+		}
+	}
+
+	val sliceToColor = cakeColors.associateBy { it.id }
+
+	@Subscribe
+	fun onEntityRender(event: EntityRenderTintEvent) {
+		if (!TConfig.highlightPlayersForSlice) return
+		val requestedCakeTeam = sliceToColor[MC.stackInHand?.skyBlockId] ?: return
+		// TODO: cache the requested color
+		val player = event.entity as? PlayerEntity ?: return
+		val cakeColor: Style = player.styledDisplayName.visit(
+			{ style, text ->
+				if (text == cakeIcon) Optional.of(style)
+				else Optional.empty()
+			}, Style.EMPTY).getOrNull() ?: return
+		if (cakeColor.color?.rgb == requestedCakeTeam.searchedTextRgb) {
+			event.renderState.overlayTexture_firmament = requestedCakeTeam.tintOverlay
+		}
+	}
+
+}
diff --git a/src/main/kotlin/util/MC.kt b/src/main/kotlin/util/MC.kt
index 215d2a8..ca3742d 100644
--- a/src/main/kotlin/util/MC.kt
+++ b/src/main/kotlin/util/MC.kt
@@ -7,11 +7,13 @@ import net.minecraft.client.gui.hud.InGameHud
 import net.minecraft.client.gui.screen.Screen
 import net.minecraft.client.gui.screen.ingame.HandledScreen
 import net.minecraft.client.network.ClientPlayerEntity
+import net.minecraft.client.render.GameRenderer
 import net.minecraft.client.render.WorldRenderer
 import net.minecraft.client.render.item.ItemRenderer
 import net.minecraft.client.world.ClientWorld
 import net.minecraft.entity.Entity
 import net.minecraft.item.Item
+import net.minecraft.item.ItemStack
 import net.minecraft.network.packet.c2s.play.CommandExecutionC2SPacket
 import net.minecraft.registry.BuiltinRegistries
 import net.minecraft.registry.RegistryKeys
@@ -85,6 +87,7 @@ object MC {
 	inline val resourceManager get() = (instance.resourceManager as ReloadableResourceManagerImpl)
 	inline val itemRenderer: ItemRenderer get() = instance.itemRenderer
 	inline val worldRenderer: WorldRenderer get() = instance.worldRenderer
+	inline val gameRenderer: GameRenderer get() = instance.gameRenderer
 	inline val networkHandler get() = player?.networkHandler
 	inline val instance get() = MinecraftClient.getInstance()
 	inline val keyboard get() = instance.keyboard
@@ -96,6 +99,7 @@ object MC {
 	inline val soundManager get() = instance.soundManager
 	inline val player: ClientPlayerEntity? get() = TestUtil.unlessTesting { instance.player }
 	inline val camera: Entity? get() = instance.cameraEntity
+	inline val stackInHand: ItemStack? get() = player?.inventory?.mainHandStack
 	inline val guiAtlasManager get() = instance.guiAtlasManager
 	inline val world: ClientWorld? get() = TestUtil.unlessTesting { instance.world }
 	inline val playerName: String? get() = player?.name?.unformattedString
diff --git a/src/main/kotlin/util/render/TintedOverlayTexture.kt b/src/main/kotlin/util/render/TintedOverlayTexture.kt
new file mode 100644
index 0000000..a02eccc
--- /dev/null
+++ b/src/main/kotlin/util/render/TintedOverlayTexture.kt
@@ -0,0 +1,44 @@
+package moe.nea.firmament.util.render
+
+import com.mojang.blaze3d.platform.GlConst
+import com.mojang.blaze3d.systems.RenderSystem
+import me.shedaniel.math.Color
+import net.minecraft.client.render.OverlayTexture
+import net.minecraft.util.math.ColorHelper
+import moe.nea.firmament.util.ErrorUtil
+
+class TintedOverlayTexture : OverlayTexture() {
+	companion object {
+		val size = 16
+	}
+
+	private var lastColor: Color? = null
+	fun setColor(color: Color): TintedOverlayTexture {
+		val image = ErrorUtil.notNullOr(texture.image, "Disposed TintedOverlayTexture written to") { return this }
+		if (color == lastColor) return this
+		lastColor = color
+
+		for (i in 0..<size) {
+			for (j in 0..<size) {
+				if (i < 8) {
+					image.setColorArgb(j, i, 0xB2FF0000.toInt())
+				} else {
+					val k = ((1F - j / 15F * 0.75F) * 255F).toInt()
+					image.setColorArgb(j, i, ColorHelper.withAlpha(k, color.color))
+				}
+			}
+		}
+
+		RenderSystem.activeTexture(GlConst.GL_TEXTURE1)
+		texture.bindTexture()
+		texture.setFilter(false, false)
+		texture.setClamp(true)
+		image.upload(0,
+		             0, 0,
+		             0, 0,
+		             image.width, image.height,
+		             false)
+		RenderSystem.activeTexture(GlConst.GL_TEXTURE0)
+		return this
+	}
+}
diff --git a/src/main/kotlin/util/skyblock/SkyBlockItems.kt b/src/main/kotlin/util/skyblock/SkyBlockItems.kt
index cfd8429..ca2b17b 100644
--- a/src/main/kotlin/util/skyblock/SkyBlockItems.kt
+++ b/src/main/kotlin/util/skyblock/SkyBlockItems.kt
@@ -8,4 +8,9 @@ object SkyBlockItems {
 	val DIAMOND = SkyblockId("DIAMOND")
 	val ANCESTRAL_SPADE = SkyblockId("ANCESTRAL_SPADE")
 	val REFORGE_ANVIL = SkyblockId("REFORGE_ANVIL")
+	val SLICE_OF_BLUEBERRY_CAKE = SkyblockId("SLICE_OF_BLUEBERRY_CAKE")
+	val SLICE_OF_CHEESECAKE = SkyblockId("SLICE_OF_CHEESECAKE")
+	val SLICE_OF_GREEN_VELVET_CAKE = SkyblockId("SLICE_OF_GREEN_VELVET_CAKE")
+	val SLICE_OF_RED_VELVET_CAKE = SkyblockId("SLICE_OF_RED_VELVET_CAKE")
+	val SLICE_OF_STRAWBERRY_SHORTCAKE = SkyblockId("SLICE_OF_STRAWBERRY_SHORTCAKE")
 }
diff --git a/src/main/resources/firmament.accesswidener b/src/main/resources/firmament.accesswidener
index 7418529..1805721 100644
--- a/src/main/resources/firmament.accesswidener
+++ b/src/main/resources/firmament.accesswidener
@@ -20,3 +20,8 @@ mutable field net/minecraft/screen/slot/Slot y I
 
 accessible field net/minecraft/entity/player/PlayerEntity PLAYER_MODEL_PARTS Lnet/minecraft/entity/data/TrackedData;
 accessible field net/minecraft/client/render/WorldRenderer chunks Lnet/minecraft/client/render/BuiltChunkStorage;
+accessible field net/minecraft/client/render/OverlayTexture texture Lnet/minecraft/client/texture/NativeImageBackedTexture;
+
+accessible method net/minecraft/client/render/RenderPhase$Texture getId ()Ljava/util/Optional;
+accessible field net/minecraft/client/render/RenderLayer$MultiPhase phases Lnet/minecraft/client/render/RenderLayer$MultiPhaseParameters;
+accessible field net/minecraft/client/render/RenderLayer$MultiPhaseParameters texture Lnet/minecraft/client/render/RenderPhase$TextureBase;
diff --git a/translations/en_us.json b/translations/en_us.json
index 1432332..1d0a8ed 100644
--- a/translations/en_us.json
+++ b/translations/en_us.json
@@ -44,6 +44,9 @@
 	"firmament.config.category.mining.description": "Mining related features",
 	"firmament.config.category.misc": "Miscellaneous",
 	"firmament.config.category.misc.description": "Miscellaneous features that don't fit elsewhere",
+	"firmament.config.centuryraffle": "Century Raffle",
+	"firmament.config.centuryraffle.highlight-cake-players": "Highlight Players in Team",
+	"firmament.config.centuryraffle.highlight-cake-players.description": "Highlight the players you can feed while holding a Slice of Century Cake",
 	"firmament.config.chat-links": "Chat Links",
 	"firmament.config.chat-links.allow-all-hosts": "Allow all Image Hosts",
 	"firmament.config.chat-links.allow-all-hosts.description": "Allow displaying images no matter where it is hosted.",