tint optimisations, refactor and abstract color maps

src/integration-test/kotlin/de/bixilon/minosoft/data/registries/versions/registries/pixlyzer/1_20_4.kt

@@ -11,17 +11,9 @@
  * This software is not affiliated with Mojang AB, the original developer of Minecraft.
  */
 
-package de.bixilon.minosoft.data.registries.biomes
+package de.bixilon.minosoft.data.registries.versions.registries.pixlyzer
 
-import de.bixilon.minosoft.data.registries.identified.Namespaces.minecraft
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.testng.annotations.Test
 
-class BiomeTest {
-
-    @Test
-    fun `color map index`() {
-        val biome = Biome(minecraft("plains"), temperature = 0.8f, downfall = 0.4f)
-        assertEquals(biome.colorMapPixelIndex, 44338)
-    }
-}
+@Test(groups = ["pixlyzer"], dependsOnGroups = ["version"], priority = Int.MAX_VALUE, timeOut = 15000L)
+class `1_20_4` : PixLyzerLoadingTest("1.20.4")

src/integration-test/kotlin/de/bixilon/minosoft/gui/rendering/system/base/texture/data/buffer/RGB8BufferTest.kt

@@ -67,6 +67,13 @@ class RGB8BufferTest {
         assertEquals(source.getA(3, 3), 0xFF)
     }
 
+    fun `get rgb at 3,3`() {
+        val source = RGB8Buffer(Vec2i(12, 13))
+        source.data.put(117 + 0, 0x11).put(117 + 1, 0x22).put(117 + 2, 0x33)
+        val rgba = source.getRGB(3, 3)
+        assertEquals(rgba, 0x112233)
+    }
+
 
     fun `put complete texture`() {
         val source = RGB8Buffer(Vec2i(12, 13))

src/integration-test/kotlin/de/bixilon/minosoft/gui/rendering/system/base/texture/data/buffer/RGBA8BufferTest.kt

@@ -69,6 +69,12 @@ class RGBA8BufferTest {
         assertEquals(source.getB(3, 3), 0x33)
         assertEquals(source.getA(3, 3), 0x44)
     }
+    fun `get rgb at 3,3`() {
+        val source = RGBA8Buffer(Vec2i(12, 13))
+        source.data.put(156 + 0, 0x11).put(156 + 1, 0x22).put(156 + 2, 0x33).put(156 + 3, 0x44)
+        val rgba = source.getRGB(3, 3)
+        assertEquals(rgba, 0x112233)
+    }
 
 
     fun `put complete texture`() {

src/integration-test/kotlin/de/bixilon/minosoft/gui/rendering/tint/tints/ColorMapTintTest.kt

@@ -0,0 +1,37 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020-2023 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.gui.rendering.tint.tints
+
+import de.bixilon.minosoft.data.registries.biomes.Biome
+import de.bixilon.minosoft.data.registries.identified.Namespaces.minecraft
+import org.testng.Assert.assertEquals
+import org.testng.annotations.Test
+
+@Test(groups = ["biome"])
+class ColorMapTintTest {
+
+    @Test
+    fun `plains color map index`() {
+        val biome = Biome(minecraft("plains"), temperature = 0.8f, downfall = 0.4f)
+        assertEquals(biome.temperatureIndex, 50)
+        assertEquals(biome.downfallIndex, 173)
+    }
+
+    @Test
+    fun `dessert color map index`() {
+        val biome = Biome(minecraft("dessert"), temperature = 2.0f, downfall = 0.0f)
+        assertEquals(biome.temperatureIndex, 0)
+        assertEquals(biome.downfallIndex, 255)
+    }
+}

src/integration-test/kotlin/de/bixilon/minosoft/gui/rendering/tint/tints/grass/GrassTintCalculatorTest.kt

@@ -0,0 +1,35 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020-2023 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.gui.rendering.tint.tints.grass
+
+import de.bixilon.minosoft.assets.MemoryAssetsManager
+import org.testng.Assert.assertEquals
+import org.testng.annotations.Test
+
+@Test(groups = ["tint"])
+class GrassTintCalculatorTest {
+    private val map by lazy {
+        val map = GrassTintCalculator()
+        val assets = MemoryAssetsManager()
+        assets.push(GrassTintCalculator.FILE, GrassTintCalculatorTest::class.java.getResourceAsStream("/tint/grass.png")!!.readAllBytes())
+        map.init(assets)
+
+        return@lazy map
+    }
+
+
+    fun `color of dessert`() {
+        assertEquals(map.getColor(255, 0), 0xBFB755)
+    }
+}

src/main/java/de/bixilon/minosoft/assets/minecraft/JarAssetsManager.kt

@@ -25,7 +25,7 @@ import de.bixilon.minosoft.assets.properties.manager.pack.PackProperties
 import de.bixilon.minosoft.assets.util.FileAssetsTypes
 import de.bixilon.minosoft.assets.util.FileAssetsUtil
 import de.bixilon.minosoft.assets.util.HashTypes
-import de.bixilon.minosoft.assets.util.InputStreamUtil.readArchive
+import de.bixilon.minosoft.assets.util.InputStreamUtil.readTarArchive
 import de.bixilon.minosoft.assets.util.InputStreamUtil.readZipArchive
 import de.bixilon.minosoft.assets.util.PathUtil
 import de.bixilon.minosoft.config.profile.profiles.resources.ResourcesProfile
@@ -66,7 +66,7 @@ class JarAssetsManager(
 
 
     private fun tryLoadAssets(): Boolean {
-        val assets = FileAssetsUtil.readOrNull(jarAssetsHash, FileAssetsTypes.GAME, verify = profile.verify)?.let { ByteArrayInputStream(it).readArchive() } ?: return false
+        val assets = FileAssetsUtil.readOrNull(jarAssetsHash, FileAssetsTypes.GAME, verify = profile.verify)?.let { ByteArrayInputStream(it).readTarArchive() } ?: return false
 
         for ((path, data) in assets) {
             this.assets[path.removePrefix("assets/" + Namespaces.MINECRAFT + "/")] = data

src/main/java/de/bixilon/minosoft/assets/util/InputStreamUtil.kt

@@ -21,9 +21,7 @@ import de.bixilon.kutil.cast.CastUtil.unsafeCast
 import de.bixilon.kutil.json.JsonObject
 import de.bixilon.mbf.MBFBinaryReader
 import de.bixilon.minosoft.util.json.Jackson
-import de.matthiasmann.twl.utils.PNGDecoder
 import org.kamranzafar.jtar.TarInputStream
-import org.lwjgl.BufferUtils
 import java.io.InputStream
 import java.util.zip.ZipInputStream
 
@@ -50,13 +48,7 @@ object InputStreamUtil {
     }
 
     fun InputStream.readJsonObject(close: Boolean = true): JsonObject {
-        try {
-            return Jackson.MAPPER.readValue(this, Jackson.JSON_MAP_TYPE)
-        } finally {
-            if (close) {
-                this.close()
-            }
-        }
+        return readJson(close = close, reader = Jackson.MAP_READER)
     }
 
     inline fun <reified T> InputStream.readJson(close: Boolean = true): T {
@@ -89,7 +81,7 @@ object InputStreamUtil {
         }
     }
 
-    fun InputStream.readArchive(): Map<String, ByteArray> {
+    fun InputStream.readTarArchive(): Map<String, ByteArray> {
         val content: MutableMap<String, ByteArray> = mutableMapOf()
         val stream = TarInputStream(this)
         while (true) {
@@ -111,21 +103,6 @@ object InputStreamUtil {
         return content
     }
 
-    fun InputStream.readRGBArray(): IntArray {
-        val decoder = PNGDecoder(this)
-
-        val buffer = BufferUtils.createByteBuffer(decoder.width * decoder.height * PNGDecoder.Format.RGB.numComponents)
-        decoder.decode(buffer, decoder.width * PNGDecoder.Format.RGB.numComponents, PNGDecoder.Format.RGB)
-        buffer.flip()
-        val colors = IntArray(decoder.width * decoder.height)
-
-        for (i in colors.indices) {
-            colors[i] = ((buffer.get().toInt() and 0xFF) shl 16) or ((buffer.get().toInt() and 0xFF) shl 8) or (buffer.get().toInt() and 0xFF)
-        }
-
-        return colors
-    }
-
     fun InputStream.readMBFMap(): Map<Any, Any> {
         return MBFBinaryReader(this).readMBF().data.unsafeCast()
     }

src/main/java/de/bixilon/minosoft/data/registries/biomes/Biome.kt

@@ -12,7 +12,6 @@
  */
 package de.bixilon.minosoft.data.registries.biomes
 
-import de.bixilon.kotlinglm.func.common.clamp
 import de.bixilon.kutil.json.JsonUtil.toJsonObject
 import de.bixilon.kutil.primitive.FloatUtil.toFloat
 import de.bixilon.minosoft.data.registries.identified.ResourceLocation
@@ -20,9 +19,8 @@ import de.bixilon.minosoft.data.registries.registries.Registries
 import de.bixilon.minosoft.data.registries.registries.registry.RegistryItem
 import de.bixilon.minosoft.data.registries.registries.registry.codec.IdentifierCodec
 import de.bixilon.minosoft.data.text.formatting.color.RGBColor
-import de.bixilon.minosoft.gui.rendering.RenderConstants
 import de.bixilon.minosoft.gui.rendering.tint.TintManager.Companion.jsonTint
-import de.bixilon.minosoft.protocol.protocol.ProtocolDefinition
+import de.bixilon.minosoft.gui.rendering.tint.tints.ColorMapTint
 
 data class Biome(
     override val identifier: ResourceLocation,
@@ -34,26 +32,15 @@ data class Biome(
     val waterFogColor: RGBColor? = null,
     val precipitation: BiomePrecipitation? = null,
 ) : RegistryItem() {
-    val grassColorModifier = GrassColorModifiers.BIOME_MAP[identifier]
-    val temperatureColorMapCoordinate = getColorMapCoordinate(temperature)
-    val downfallColorMapCoordinate = getColorMapCoordinate(downfall * temperature)
-    val colorMapPixelIndex = downfallColorMapCoordinate shl 8 or temperatureColorMapCoordinate
+    val grassModifier = GrassColorModifiers.BIOME_MAP[identifier]
 
 
-    fun getClampedTemperature(height: Int): Int {
-        return getColorMapCoordinate((temperature + ((height - ProtocolDefinition.SEA_LEVEL_HEIGHT).clamp(1, Int.MAX_VALUE) * ProtocolDefinition.HEIGHT_SEA_LEVEL_MODIFIER)).clamp(0.0f, 1.0f))
-    }
+    val temperatureIndex = ColorMapTint.getIndex(temperature)
+    val downfallIndex = ColorMapTint.getIndex(downfall * temperature)
 
-    override fun toString(): String {
-        return identifier.toString()
-    }
 
     companion object : IdentifierCodec<Biome> {
 
-        private fun getColorMapCoordinate(value: Float): Int {
-            return ((1.0 - value.clamp(0.0f, 1.0f)) * RenderConstants.COLORMAP_SIZE).toInt()
-        }
-
         override fun deserialize(registries: Registries?, identifier: ResourceLocation, data: Map<String, Any>): Biome {
             val effects = data["effects"].toJsonObject() // nbt data
             val skyColor = (data["sky_color"] ?: effects?.get("sky_color"))?.jsonTint()

src/main/java/de/bixilon/minosoft/gui/rendering/RenderConstants.kt

@@ -18,9 +18,6 @@ import de.bixilon.minosoft.data.text.formatting.color.RGBColor
 import de.bixilon.minosoft.gui.rendering.textures.TextureUtil.texture
 
 object RenderConstants {
-    const val COLORMAP_SIZE = 255
-
-
     val TEXT_BACKGROUND_COLOR = RGBColor(0, 0, 0, 80)
 
 

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/queue/meshing/ChunkMeshingQueue.kt

@@ -34,7 +34,7 @@ class ChunkMeshingQueue(
 
     @Volatile
     private var working = false
-    private val queue: MutableList<WorldQueueItem> = mutableListOf()
+    private val queue: MutableList<WorldQueueItem> = ArrayList()
     private val set: MutableSet<WorldQueueItem> = HashSet()
 
     private val lock = SimpleLock()

src/main/java/de/bixilon/minosoft/gui/rendering/system/base/texture/array/StaticTextureArray.kt

@@ -21,7 +21,7 @@ import de.bixilon.kutil.concurrent.pool.runnable.ForcePooledRunnable
 import de.bixilon.kutil.concurrent.pool.runnable.SimplePoolRunnable
 import de.bixilon.kutil.latch.AbstractLatch
 import de.bixilon.kutil.latch.AbstractLatch.Companion.child
-import de.bixilon.minosoft.assets.util.InputStreamUtil.readAsString
+import de.bixilon.minosoft.assets.util.InputStreamUtil.readJson
 import de.bixilon.minosoft.data.registries.identified.ResourceLocation
 import de.bixilon.minosoft.gui.rendering.RenderContext
 import de.bixilon.minosoft.gui.rendering.system.base.texture.TextureStates
@@ -31,7 +31,6 @@ import de.bixilon.minosoft.gui.rendering.system.base.texture.texture.Texture
 import de.bixilon.minosoft.gui.rendering.system.base.texture.texture.file.PNGTexture
 import de.bixilon.minosoft.gui.rendering.textures.properties.ImageProperties
 import de.bixilon.minosoft.util.KUtil.toResourceLocation
-import de.bixilon.minosoft.util.json.Jackson
 import java.util.concurrent.atomic.AtomicInteger
 
 abstract class StaticTextureArray(
@@ -88,8 +87,8 @@ abstract class StaticTextureArray(
 
     private fun readImageProperties(texture: ResourceLocation): ImageProperties? {
         try {
-            val data = context.connection.assetsManager.getOrNull("$texture.mcmeta".toResourceLocation())?.readAsString() ?: return null
-            return Jackson.MAPPER.readValue(data, ImageProperties::class.java)
+            val stream = context.connection.assetsManager.getOrNull("$texture.mcmeta".toResourceLocation()) ?: return null
+            return stream.readJson(reader = ImageProperties.READER)
         } catch (error: Throwable) {
             error.printStackTrace()
         }

src/main/java/de/bixilon/minosoft/gui/rendering/system/base/texture/data/buffer/RGB8Buffer.kt

@@ -62,6 +62,11 @@ class RGB8Buffer(
         return (this[stride + 0] shl 24) or (this[stride + 1] shl 16) or (this[stride + 2] shl 8) or 0xFF
     }
 
+    override fun getRGB(x: Int, y: Int): Int {
+        val stride = stride(x, y)
+        return (this[stride + 0] shl 16) or (this[stride + 1] shl 8) or this[stride + 2]
+    }
+
 
     override fun getR(x: Int, y: Int) = this[stride(x, y) + 0]
     override fun getG(x: Int, y: Int) = this[stride(x, y) + 1]
@@ -70,6 +75,7 @@ class RGB8Buffer(
 
 
     private fun stride(x: Int, y: Int): Int {
+        if (x >= size.x || y >= size.y) throw IllegalArgumentException("Can not access pixel at ($x,$y), exceeds size: $size")
         return ((size.x * y) + x) * bytes
     }
 }

src/main/java/de/bixilon/minosoft/gui/rendering/system/base/texture/data/buffer/RGBA8Buffer.kt

@@ -58,18 +58,21 @@ class RGBA8Buffer(
 
     override fun getRGBA(x: Int, y: Int): Int {
         val stride = stride(x, y)
-        if (stride > data.capacity()) {
-            throw IllegalArgumentException("Can not access pixel at ($x,$y), exceeds size: $size")
-        }
         return (this[stride + 0] shl 24) or (this[stride + 1] shl 16) or (this[stride + 2] shl 8) or (this[stride + 3] shl 0)
     }
 
+    override fun getRGB(x: Int, y: Int): Int {
+        val stride = stride(x, y)
+        return (this[stride + 0] shl 16) or (this[stride + 1] shl 8) or this[stride + 2]
+    }
+
     override fun getR(x: Int, y: Int) = this[stride(x, y) + 0]
     override fun getG(x: Int, y: Int) = this[stride(x, y) + 1]
     override fun getB(x: Int, y: Int) = this[stride(x, y) + 2]
     override fun getA(x: Int, y: Int) = this[stride(x, y) + 3]
 
     private fun stride(x: Int, y: Int): Int {
+        if (x >= size.x || y >= size.y) throw IllegalArgumentException("Can not access pixel at ($x,$y), exceeds size: $size")
         return ((size.x * y) + x) * bytes
     }
 }

src/main/java/de/bixilon/minosoft/gui/rendering/system/base/texture/data/buffer/TextureBuffer.kt

@@ -55,6 +55,8 @@ interface TextureBuffer {
     fun getB(x: Int, y: Int): Int
     fun getA(x: Int, y: Int): Int
 
+    fun getRGB(x: Int, y: Int): Int
+
     fun getRGBA(x: Int, y: Int): Int
     fun setRGBA(x: Int, y: Int, value: Int)
     fun setRGBA(x: Int, y: Int, red: Int, green: Int, blue: Int, alpha: Int)

src/main/java/de/bixilon/minosoft/gui/rendering/textures/properties/ImageProperties.kt

@@ -1,6 +1,6 @@
 /*
  * Minosoft
- * Copyright (C) 2021 Moritz Zwerger
+ * Copyright (C) 2020-2023 Moritz Zwerger
  *
  * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
  *
@@ -14,6 +14,7 @@
 package de.bixilon.minosoft.gui.rendering.textures.properties
 
 import de.bixilon.minosoft.gui.rendering.system.base.texture.texture.Texture
+import de.bixilon.minosoft.util.json.Jackson
 
 data class ImageProperties(
     val texture: TextureProperties = TextureProperties(),
@@ -27,5 +28,6 @@ data class ImageProperties(
 
     companion object {
         val DEFAULT = ImageProperties()
+        val READER = Jackson.MAPPER.readerFor(ImageProperties::class.java)
     }
 }

src/main/java/de/bixilon/minosoft/gui/rendering/tint/tints/ColorMapTint.kt

@@ -0,0 +1,62 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020-2023 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.gui.rendering.tint.tints
+
+import de.bixilon.kutil.exception.ExceptionUtil.ignoreAll
+import de.bixilon.minosoft.assets.AssetsManager
+import de.bixilon.minosoft.data.registries.identified.ResourceLocation
+import de.bixilon.minosoft.gui.rendering.system.base.texture.data.buffer.TextureBuffer
+import de.bixilon.minosoft.gui.rendering.textures.TextureUtil.readTexture
+import de.bixilon.minosoft.gui.rendering.tint.TintProvider
+import de.bixilon.minosoft.util.logging.Log
+import de.bixilon.minosoft.util.logging.LogLevels
+import de.bixilon.minosoft.util.logging.LogMessageType
+
+abstract class ColorMapTint(
+    private val file: ResourceLocation,
+) : TintProvider {
+    protected var map: IntArray? = null
+
+    fun init(assets: AssetsManager) {
+        val map = ignoreAll { assets[file].readTexture() } ?: return
+        if (map.size.x != SIZE || map.size.y != SIZE) {
+            Log.log(LogMessageType.LOADING, LogLevels.WARN) { "Color map ($file) has invalid size: ${map.size}" }
+            return
+        }
+        this.map = map.toColorMap()
+    }
+
+    private fun TextureBuffer.toColorMap(): IntArray {
+        val array = IntArray(size.x * size.y)
+        var index = 0
+        for (y in 0 until size.y) {
+            for (x in 0 until size.x) {
+                array[index++] = getRGB(x, y)
+            }
+        }
+        return array
+    }
+
+    companion object {
+        const val SIZE = 256
+
+        fun getIndex(value: Float): Int {
+            if (value <= 0.0f) return SIZE - 1
+            if (value >= 1.0f) return 0
+
+            val delta = 1.0f - value
+            return (delta * (SIZE - 1)).toInt()
+        }
+    }
+}

src/main/java/de/bixilon/minosoft/gui/rendering/tint/tints/grass/GrassTintCalculator.kt

@@ -13,48 +13,33 @@
 
 package de.bixilon.minosoft.gui.rendering.tint.tints.grass
 
-import de.bixilon.kutil.exception.ExceptionUtil.ignoreAll
-import de.bixilon.minosoft.assets.AssetsManager
-import de.bixilon.minosoft.assets.util.InputStreamUtil.readRGBArray
+import de.bixilon.minosoft.data.container.stack.ItemStack
 import de.bixilon.minosoft.data.registries.biomes.Biome
 import de.bixilon.minosoft.data.registries.biomes.GrassColorModifiers
 import de.bixilon.minosoft.data.registries.blocks.state.BlockState
 import de.bixilon.minosoft.data.registries.blocks.types.building.dirt.GrassBlock
+import de.bixilon.minosoft.data.registries.identified.Namespaces.minecraft
 import de.bixilon.minosoft.data.text.formatting.color.Colors
 import de.bixilon.minosoft.gui.rendering.textures.TextureUtil.texture
-import de.bixilon.minosoft.gui.rendering.tint.TintProvider
-import de.bixilon.minosoft.util.KUtil.toResourceLocation
+import de.bixilon.minosoft.gui.rendering.tint.tints.ColorMapTint
 
-class GrassTintCalculator : TintProvider {
-    private lateinit var colorMap: IntArray
+class GrassTintCalculator : ColorMapTint(FILE) {
 
-    fun init(assetsManager: AssetsManager) {
-        colorMap = ignoreAll { assetsManager["minecraft:colormap/grass".toResourceLocation().texture()].readRGBArray() } ?: IntArray(256)
-    }
+    fun getColor(downfallIndex: Int, temperatureIndex: Int): Int {
+        val map = map ?: return FALLBACK
 
-    inline fun getColor(downfall: Int, temperature: Int): Int {
-        return getColor(downfall shl 8 or temperature)
-    }
-
-    fun getColor(colorMapPixelIndex: Int): Int {
-        if (colorMapPixelIndex > colorMap.size) {
-            return 0xFF00FF // ToDo: Is this correct? Was used in my old implementation
-        }
-        val color = colorMap[colorMapPixelIndex]
-        if (color == 0xFFFFFF) {
-            return 0x48B518
-        }
+        val color = map[downfallIndex shl 8 or temperatureIndex]
+        if (color == 0xFFFFFF) return 0x48B518
 
         return color
     }
 
     fun getBlockColor(biome: Biome?): Int {
-        if (biome == null) {
-            return getColor(127, 255)
-        }
-        val color = getColor(biome.colorMapPixelIndex)
+        if (biome == null) return getColor(127, 255)
 
-        return when (biome.grassColorModifier) {
+        val color = getColor(biome.downfallIndex, biome.temperatureIndex)
+
+        return when (biome.grassModifier) {
             null -> color
             GrassColorModifiers.SWAMP -> 0x6A7039 // ToDo: Biome noise is applied here
             GrassColorModifiers.DARK_FOREST -> (color and 0xFEFEFE) + 0x28340A shr 1
@@ -71,4 +56,13 @@ class GrassTintCalculator : TintProvider {
         }
         return getBlockColor(biome)
     }
+
+    override fun getItemColor(stack: ItemStack, tintIndex: Int): Int {
+        return getColor(127, 255) // TODO: verify
+    }
+
+    companion object {
+        val FILE = minecraft("colormap/grass").texture()
+        private const val FALLBACK = 0xFF00FF // ToDo: Is this correct? Was used in my old implementation
+    }
 }

src/main/java/de/bixilon/minosoft/gui/rendering/tint/tints/plants/FoliageTintCalculator.kt

@@ -13,29 +13,23 @@
 
 package de.bixilon.minosoft.gui.rendering.tint.tints.plants
 
-import de.bixilon.kutil.exception.ExceptionUtil.ignoreAll
-import de.bixilon.minosoft.assets.AssetsManager
-import de.bixilon.minosoft.assets.util.InputStreamUtil.readRGBArray
+import de.bixilon.kotlinglm.func.common.clamp
 import de.bixilon.minosoft.data.container.stack.ItemStack
 import de.bixilon.minosoft.data.registries.biomes.Biome
 import de.bixilon.minosoft.data.registries.blocks.state.BlockState
+import de.bixilon.minosoft.data.registries.identified.Namespaces.minecraft
 import de.bixilon.minosoft.gui.rendering.textures.TextureUtil.texture
-import de.bixilon.minosoft.gui.rendering.tint.TintProvider
-import de.bixilon.minosoft.util.KUtil.toResourceLocation
+import de.bixilon.minosoft.gui.rendering.tint.tints.ColorMapTint
 
-class FoliageTintCalculator : TintProvider {
-    private lateinit var colorMap: IntArray
-
-    fun init(assetsManager: AssetsManager) {
-        colorMap = ignoreAll { assetsManager["minecraft:colormap/foliage".toResourceLocation().texture()].readRGBArray() } ?: IntArray(256)
-    }
+class FoliageTintCalculator : ColorMapTint(FILE) {
 
     fun getBlockColor(biome: Biome?, y: Int): Int {
-        if (biome == null) {
-            return FALLBACK_COLOR
-        }
+        if (biome == null) return FALLBACK_COLOR
+        val map = this.map ?: return FALLBACK_COLOR
+
         // ToDo: Override
-        return colorMap[biome.downfallColorMapCoordinate shl 8 or biome.getClampedTemperature(y)]
+        val temperature = modifyTemperature(biome.temperature, y)
+        return map[biome.downfallIndex shl 8 or temperature]
     }
 
     override fun getBlockColor(blockState: BlockState, biome: Biome?, x: Int, y: Int, z: Int, tintIndex: Int): Int {
@@ -51,6 +45,19 @@ class FoliageTintCalculator : TintProvider {
     }
 
     companion object {
+        private val FILE = minecraft("colormap/foliage").texture()
         private const val FALLBACK_COLOR = 0x48B518
+
+        // not sure if that is accurate or relevant
+        private const val SEA_LEVEL = 62
+        private const val SEA_LEVEL_MODIFIER = 0.00166667f
+
+
+        fun modifyTemperature(temperature: Float, height: Int): Int {
+            val modifier = maxOf(1, height - SEA_LEVEL) * SEA_LEVEL_MODIFIER
+            val modified = (temperature + modifier).clamp(0.0f, 1.0f)
+
+            return getIndex(modified)
+        }
     }
 }

src/main/java/de/bixilon/minosoft/protocol/protocol/ProtocolDefinition.java

@@ -68,9 +68,6 @@ public final class ProtocolDefinition {
 
     public static final float VELOCITY_NETWORK_DIVIDER = 8000.0f;
 
-    public static final int SEA_LEVEL_HEIGHT = 62;
-
-    public static final float HEIGHT_SEA_LEVEL_MODIFIER = 0.00166667f;
 
     public static final RGBColor DEFAULT_COLOR = ChatColors.WHITE;
 

src/main/java/de/bixilon/minosoft/util/json/Jackson.kt

@@ -64,6 +64,7 @@ object Jackson {
 
 
     val JSON_MAP_TYPE: MapType = MAPPER.typeFactory.constructMapType(HashMap::class.java, Any::class.java, Any::class.java)
+    val MAP_READER = MAPPER.readerFor(JSON_MAP_TYPE)
 
     fun init() = Unit
 }