feat: Highlight century cake slice players

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") {

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
+			}
+		}
+	}
+
+}

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))

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
+		}
+	}
+
+}

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

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
+	}
+}

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")
 }