flower random offset, bump pixlyzer

src/main/java/de/bixilon/minosoft/config/config/game/OtherGameConfig.kt

@@ -17,4 +17,5 @@ import com.squareup.moshi.Json
 
 data class OtherGameConfig(
     @Json(name = "anti_moire_pattern") var antiMoirePattern: Boolean = true,
+    @Json(name = "flower_random_offset") var flowerRandomOffset: Boolean = true,
 )

src/main/java/de/bixilon/minosoft/data/mappings/blocks/Block.kt

@@ -27,6 +27,7 @@ open class Block(
     val explosionResistance: Float = 0.0f,
     val hasDynamicShape: Boolean = false,
     val tintColor: RGBColor? = null,
+    val randomOffsetType: RandomOffsetTypes? = null,
     private val itemId: Int = 0,
     val tint: ResourceLocation? = null,
     val renderOverride: MutableList<BlockLikeRenderer>? = null,
@@ -52,6 +53,13 @@ open class Block(
             var renderOverride: MutableList<BlockLikeRenderer>? = null
 
 
+            val explosionResistance = data["explosion_resistance"]?.asFloat ?: 0.0f
+            val hasDynamicShape = data["has_dynamic_shape"]?.asBoolean ?: false
+            val tintColor = data["tint_color"]?.asInt?.let { TintColorCalculator.getJsonColor(it) }
+            val randomOffsetType = data["offset_type"]?.asString?.let { RandomOffsetTypes[it] }
+            val itemId = data["item"]?.asInt ?: 0
+            val tint = data["tint"]?.asString?.let { ResourceLocation(it) }
+
             val block = when (data["class"].asString) {
                 "FluidBlock" -> {
                     val stillFluid = mappings.fluidRegistry.get(data["still_fluid"].asInt)
@@ -60,22 +68,26 @@ open class Block(
 
 
                     FluidBlock(
-                        resourceLocation = resourceLocation, explosionResistance = data["explosion_resistance"]?.asFloat ?: 0.0f,
-                        hasDynamicShape = data["has_dynamic_shape"]?.asBoolean ?: false,
-                        tintColor = data["tint_color"]?.asInt?.let { TintColorCalculator.getJsonColor(it) },
-                        itemId = data["item"]?.asInt ?: 0,
-                        tint = data["tint"]?.asString?.let { ResourceLocation(it) },
+                        resourceLocation = resourceLocation,
+                        explosionResistance = explosionResistance,
+                        hasDynamicShape = hasDynamicShape,
+                        tintColor = tintColor,
+                        randomOffsetType = randomOffsetType,
+                        itemId = itemId,
+                        tint = tint,
                         renderOverride = renderOverride,
                         stillFluid = stillFluid,
                         flowingFluid = flowingFluid,
                     )
                 }
                 else -> Block(
-                    resourceLocation = resourceLocation, explosionResistance = data["explosion_resistance"]?.asFloat ?: 0.0f,
-                    hasDynamicShape = data["has_dynamic_shape"]?.asBoolean ?: false,
-                    tintColor = data["tint_color"]?.asInt?.let { TintColorCalculator.getJsonColor(it) },
-                    itemId = data["item"]?.asInt ?: 0,
-                    tint = data["tint"]?.asString?.let { ResourceLocation(it) },
+                    resourceLocation = resourceLocation,
+                    explosionResistance = explosionResistance,
+                    hasDynamicShape = hasDynamicShape,
+                    tintColor = tintColor,
+                    randomOffsetType = randomOffsetType,
+                    itemId = itemId,
+                    tint = tint,
                     renderOverride = renderOverride,
                 )
             }

src/main/java/de/bixilon/minosoft/data/mappings/blocks/FluidBlock.kt

@@ -24,12 +24,13 @@ class FluidBlock(
     explosionResistance: Float = 0.0f,
     hasDynamicShape: Boolean = false,
     tintColor: RGBColor? = null,
+    randomOffsetType: RandomOffsetTypes? = null,
     itemId: Int = 0,
     tint: ResourceLocation? = null,
     val stillFluid: Fluid,
     val flowingFluid: Fluid,
     renderOverride: MutableList<BlockLikeRenderer> = mutableListOf(),
-) : Block(resourceLocation, explosionResistance, hasDynamicShape, tintColor, itemId, tint, renderOverride) {
+) : Block(resourceLocation, explosionResistance, hasDynamicShape, tintColor, randomOffsetType, itemId, tint, renderOverride) {
     val fluidRenderer: FluidRenderer = FluidRenderer(this, stillFluid, flowingFluid)
 
     init {

src/main/java/de/bixilon/minosoft/data/mappings/blocks/RandomOffsetTypes.kt

@@ -0,0 +1,28 @@
+/*
+ * Minosoft
+ * Copyright (C) 2021 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.data.mappings.blocks
+
+import de.bixilon.minosoft.util.KUtil
+import de.bixilon.minosoft.util.enum.ValuesEnum
+
+enum class RandomOffsetTypes {
+    XZ,
+    XYZ,
+    ;
+
+    companion object : ValuesEnum<RandomOffsetTypes> {
+        override val VALUES: Array<RandomOffsetTypes> = values()
+        override val NAME_MAP: Map<String, RandomOffsetTypes> = KUtil.getEnumValues(VALUES)
+    }
+}

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/WorldRenderer.kt

@@ -27,11 +27,13 @@ import de.bixilon.minosoft.data.world.ChunkSection.Companion.indexPosition
 import de.bixilon.minosoft.data.world.World
 import de.bixilon.minosoft.gui.input.camera.Frustum
 import de.bixilon.minosoft.gui.rendering.*
+import de.bixilon.minosoft.gui.rendering.chunk.models.renderable.BlockLikeRenderContext
 import de.bixilon.minosoft.gui.rendering.modding.events.FrustumChangeEvent
 import de.bixilon.minosoft.gui.rendering.modding.events.RenderingStateChangeEvent
 import de.bixilon.minosoft.gui.rendering.shader.Shader
 import de.bixilon.minosoft.gui.rendering.textures.Texture
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.chunkPosition
+import de.bixilon.minosoft.gui.rendering.util.VecUtil.getWorldOffset
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.of
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.plus
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.sectionHeight
@@ -80,9 +82,9 @@ class WorldRenderer(
                 }
                 val blockPosition = Vec3i.of(chunkPosition, sectionHeight, index.indexPosition)
 
-                val neighborBlocks: Array<BlockState?> = arrayOfNulls(Directions.VALUES.size)
+                val neighbourBlocks: Array<BlockState?> = arrayOfNulls(Directions.VALUES.size)
                 for (direction in Directions.VALUES) {
-                    neighborBlocks[direction.ordinal] = world.getBlockState(blockPosition + direction)
+                    neighbourBlocks[direction.ordinal] = world.getBlockState(blockPosition + direction)
                 }
 
                 // if (!blockState.block.resourceLocation.full.contains("white_stained_glass_pane")) {
@@ -90,11 +92,22 @@ class WorldRenderer(
                 // }
 
 
+                val context = BlockLikeRenderContext(
+                    blockState = blockState,
+                    lightAccessor = world.worldLightAccessor,
+                    renderWindow = renderWindow,
+                    blockPosition = blockPosition,
+                    meshCollection = meshCollection,
+                    neighbourBlocks = neighbourBlocks,
+                    world = world,
+                    offset = blockPosition.getWorldOffset(blockState.block),
+                )
+
                 if (blockState.properties[BlockProperties.WATERLOGGED] == true) {
-                    waterBlock?.fluidRenderer?.render(waterBlock.defaultState, world.worldLightAccessor, renderWindow, blockPosition, meshCollection, neighborBlocks, world)
+                    waterBlock?.fluidRenderer?.render(context.copy(blockState = waterBlock.defaultState))
                 }
 
-                blockState.getBlockRenderer(blockPosition).render(blockState, world.worldLightAccessor, renderWindow, blockPosition, meshCollection, neighborBlocks, world)
+                blockState.getBlockRenderer(blockPosition).render(context)
             }
         }
 

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/models/renderable/BlockLikeRenderContext.kt

@@ -0,0 +1,33 @@
+/*
+ * Minosoft
+ * Copyright (C) 2021 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.chunk.models.renderable
+
+import de.bixilon.minosoft.data.mappings.blocks.BlockState
+import de.bixilon.minosoft.data.world.World
+import de.bixilon.minosoft.data.world.light.LightAccessor
+import de.bixilon.minosoft.gui.rendering.RenderWindow
+import de.bixilon.minosoft.gui.rendering.chunk.ChunkMeshCollection
+import glm_.vec3.Vec3
+import glm_.vec3.Vec3i
+
+data class BlockLikeRenderContext(
+    val blockState: BlockState,
+    val lightAccessor: LightAccessor,
+    val renderWindow: RenderWindow,
+    val blockPosition: Vec3i,
+    val meshCollection: ChunkMeshCollection,
+    val neighbourBlocks: Array<BlockState?>,
+    val world: World,
+    val offset: Vec3,
+)

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/models/renderable/BlockLikeRenderer.kt

@@ -1,19 +1,13 @@
 package de.bixilon.minosoft.gui.rendering.chunk.models.renderable
 
-import de.bixilon.minosoft.data.mappings.blocks.BlockState
-import de.bixilon.minosoft.data.world.World
-import de.bixilon.minosoft.data.world.light.LightAccessor
-import de.bixilon.minosoft.gui.rendering.RenderWindow
-import de.bixilon.minosoft.gui.rendering.chunk.ChunkMeshCollection
 import de.bixilon.minosoft.gui.rendering.chunk.models.FaceSize
 import de.bixilon.minosoft.gui.rendering.textures.Texture
-import glm_.vec3.Vec3i
 
 interface BlockLikeRenderer {
     val faceBorderSizes: Array<Array<FaceSize>?> // direction indexed
     val transparentFaces: BooleanArray
 
-    fun render(blockState: BlockState, lightAccessor: LightAccessor, renderWindow: RenderWindow, blockPosition: Vec3i, meshCollection: ChunkMeshCollection, neighbourBlocks: Array<BlockState?>, world: World)
+    fun render(context: BlockLikeRenderContext)
 
     fun resolveTextures(indexed: MutableList<Texture>, textureMap: MutableMap<String, Texture>)
 

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/models/renderable/BlockRenderer.kt

@@ -17,13 +17,8 @@ import com.google.common.collect.HashBiMap
 import com.google.gson.JsonObject
 import de.bixilon.minosoft.data.Directions
 import de.bixilon.minosoft.data.mappings.biomes.Biome
-import de.bixilon.minosoft.data.mappings.blocks.BlockState
 import de.bixilon.minosoft.data.text.RGBColor
-import de.bixilon.minosoft.data.world.World
-import de.bixilon.minosoft.data.world.light.LightAccessor
 import de.bixilon.minosoft.gui.rendering.RenderConstants
-import de.bixilon.minosoft.gui.rendering.RenderWindow
-import de.bixilon.minosoft.gui.rendering.chunk.ChunkMeshCollection
 import de.bixilon.minosoft.gui.rendering.chunk.models.FaceSize
 import de.bixilon.minosoft.gui.rendering.chunk.models.loading.BlockModel
 import de.bixilon.minosoft.gui.rendering.textures.Texture
@@ -32,7 +27,6 @@ import de.bixilon.minosoft.gui.rendering.util.VecUtil.plus
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.toVec3
 import glm_.glm
 import glm_.vec3.Vec3
-import glm_.vec3.Vec3i
 
 class BlockRenderer(data: JsonObject, parent: BlockModel) : BlockLikeRenderer {
     private val cullFaces: Array<Directions?> = arrayOfNulls(Directions.VALUES.size)
@@ -102,7 +96,7 @@ class BlockRenderer(data: JsonObject, parent: BlockModel) : BlockLikeRenderer {
         }
     }
 
-    override fun render(blockState: BlockState, lightAccessor: LightAccessor, renderWindow: RenderWindow, blockPosition: Vec3i, meshCollection: ChunkMeshCollection, neighbourBlocks: Array<BlockState?>, world: World) {
+    override fun render(context: BlockLikeRenderContext) {
         if (!RenderConstants.RENDER_BLOCKS) {
             return
         }
@@ -114,8 +108,8 @@ class BlockRenderer(data: JsonObject, parent: BlockModel) : BlockLikeRenderer {
             val invertedDirection = direction.inverted
             var isNeighbourTransparent = false
             var neighbourFaceSize: Array<FaceSize>? = null
-            val neighbourBlock = neighbourBlocks[direction.ordinal]
-            neighbourBlock?.getBlockRenderer(blockPosition + direction)?.let {
+            val neighbourBlock = context.neighbourBlocks[direction.ordinal]
+            neighbourBlock?.getBlockRenderer(context.blockPosition + direction)?.let {
                 val itDirection = if (it is BlockRenderer) {
                     it.directionMapping[invertedDirection] ?: invertedDirection
                 } else {
@@ -147,7 +141,7 @@ class BlockRenderer(data: JsonObject, parent: BlockModel) : BlockLikeRenderer {
                     // force draw transparent faces
                     if (isNeighbourTransparent && !transparentFaces[direction.ordinal]) {
                         drawElementFace = true
-                    } else if (isNeighbourTransparent && transparentFaces[direction.ordinal] && neighbourBlock != blockState) {
+                    } else if (isNeighbourTransparent && transparentFaces[direction.ordinal] && neighbourBlock != context.blockState) {
                         drawElementFace = true
                     }
                 }
@@ -157,10 +151,10 @@ class BlockRenderer(data: JsonObject, parent: BlockModel) : BlockLikeRenderer {
                 }
 
                 if (biome == null) {
-                    biome = world.getBiome(blockPosition)
-                    tintColor = renderWindow.tintColorCalculator.getAverageTint(biome, blockState, blockPosition)
+                    biome = context.world.getBiome(context.blockPosition)
+                    tintColor = context.renderWindow.tintColorCalculator.getAverageTint(biome, context.blockState, context.blockPosition)
                 }
-                element.render(tintColor, blockPosition, lightAccessor, textureMapping, direction, meshCollection)
+                element.render(tintColor, textureMapping, direction, context)
             }
         }
     }

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/models/renderable/ElementRenderer.kt

@@ -18,7 +18,6 @@ import com.google.gson.JsonObject
 import de.bixilon.minosoft.data.Axes
 import de.bixilon.minosoft.data.Directions
 import de.bixilon.minosoft.data.text.RGBColor
-import de.bixilon.minosoft.data.world.light.LightAccessor
 import de.bixilon.minosoft.gui.rendering.chunk.ChunkMeshCollection
 import de.bixilon.minosoft.gui.rendering.chunk.SectionArrayMesh
 import de.bixilon.minosoft.gui.rendering.chunk.models.FaceSize
@@ -31,7 +30,6 @@ import de.bixilon.minosoft.gui.rendering.util.VecUtil
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.plus
 import de.bixilon.minosoft.gui.rendering.util.VecUtil.rotate
 import glm_.vec3.Vec3
-import glm_.vec3.Vec3i
 
 class ElementRenderer(
     parent: BlockModelElement,
@@ -65,7 +63,7 @@ class ElementRenderer(
         }
     }
 
-    fun render(tintColor: RGBColor?, blockPosition: Vec3i, lightAccessor: LightAccessor, textureMapping: MutableMap<String, Texture>, direction: Directions, meshCollection: ChunkMeshCollection) {
+    fun render(tintColor: RGBColor?, textureMapping: MutableMap<String, Texture>, direction: Directions, context: BlockLikeRenderContext) {
         val realDirection = directionMapping.inverse()[direction]!!
 
         val face = faces[realDirection] ?: return // Not our face
@@ -73,16 +71,16 @@ class ElementRenderer(
 
         val texture = textureMapping[face.textureName] ?: TODO("Unknown texture used ${face.textureName}") // ToDo: can be replaced with RenderConstants.DEBUG_TEXTURE_ID?
 
-        val lightLevel = lightAccessor.getLightLevel(blockPosition + face.cullFace?.let { directionMapping[it] }) // ToDo: rotate cullface
+        val lightLevel = context.lightAccessor.getLightLevel(context.blockPosition + face.cullFace?.let { directionMapping[it] }) // ToDo: rotate cullface
 
         val drawPositions = arrayOf(transformedPositions[positionTemplate[0]], transformedPositions[positionTemplate[1]], transformedPositions[positionTemplate[2]], transformedPositions[positionTemplate[3]])
 
-        val mesh = getMesh(meshCollection, texture.transparency)
+        val mesh = getMesh(context.meshCollection, texture.transparency)
         val texturePositions = face.getTexturePositionArray(realDirection)
 
         for (vertex in DRAW_ODER) {
             val input = drawPositions[vertex.first]
-            val output = blockPosition plus input + DRAW_OFFSET
+            val output = context.blockPosition plus context.offset + input + DRAW_OFFSET
             mesh.addVertex(
                 position = output,
                 textureCoordinates = texturePositions[vertex.second]!!,

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/models/renderable/FluidRenderer.kt

@@ -8,9 +8,7 @@ import de.bixilon.minosoft.data.mappings.blocks.properties.BlockProperties
 import de.bixilon.minosoft.data.mappings.fluid.Fluid
 import de.bixilon.minosoft.data.text.RGBColor
 import de.bixilon.minosoft.data.world.World
-import de.bixilon.minosoft.data.world.light.LightAccessor
 import de.bixilon.minosoft.gui.rendering.RenderConstants
-import de.bixilon.minosoft.gui.rendering.RenderWindow
 import de.bixilon.minosoft.gui.rendering.chunk.ChunkMeshCollection
 import de.bixilon.minosoft.gui.rendering.chunk.models.FaceSize
 import de.bixilon.minosoft.gui.rendering.chunk.models.loading.BlockModelElement
@@ -32,12 +30,12 @@ class FluidRenderer(
     private lateinit var stillTexture: Texture
     private lateinit var flowingTexture: Texture
 
-    override fun render(blockState: BlockState, lightAccessor: LightAccessor, renderWindow: RenderWindow, blockPosition: Vec3i, meshCollection: ChunkMeshCollection, neighbourBlocks: Array<BlockState?>, world: World) {
+    override fun render(context: BlockLikeRenderContext) {
         if (!RenderConstants.RENDER_FLUIDS) {
             return
         }
-        val lightLevel = lightAccessor.getLightLevel(blockPosition)
-        val heights = calculateHeights(neighbourBlocks, blockState, world, blockPosition)
+        val lightLevel = context.lightAccessor.getLightLevel(context.blockPosition)
+        val heights = calculateHeights(context.neighbourBlocks, context.blockState, context.world, context.blockPosition)
         val isFlowing = isLiquidFlowing(heights)
 
         var texture: Texture
@@ -58,18 +56,19 @@ class FluidRenderer(
             } else {
                 texture = stillTexture
             }
-            if (isBlockSameFluid(neighbourBlocks[direction.ordinal]) || neighbourBlocks[direction.ordinal]?.getBlockRenderer(blockPosition + direction)?.faceBorderSizes?.let { it[direction.inverted.ordinal] != null } == true && direction != Directions.UP) {
+            val neighbourBlocks = context.neighbourBlocks
+            if (isBlockSameFluid(neighbourBlocks[direction.ordinal]) || neighbourBlocks[direction.ordinal]?.getBlockRenderer(context.blockPosition + direction)?.faceBorderSizes?.let { it[direction.inverted.ordinal] != null } == true && direction != Directions.UP) {
                 continue
             }
             val positionTemplate = BlockModelElement.FACE_POSITION_MAP_TEMPLATE[direction.ordinal]
             val drawPositions = arrayOf(positions[positionTemplate[0]], positions[positionTemplate[1]], positions[positionTemplate[2]], positions[positionTemplate[3]])
 
             if (biome == null) {
-                biome = world.getBiome(blockPosition)
-                tintColor = renderWindow.tintColorCalculator.getAverageTint(biome, blockState, blockPosition)
+                biome = context.world.getBiome(context.blockPosition)
+                tintColor = context.renderWindow.tintColorCalculator.getAverageTint(biome, context.blockState, context.blockPosition)
             }
 
-            createQuad(drawPositions, face.getTexturePositionArray(direction), texture, blockPosition, meshCollection, tintColor, lightLevel)
+            createQuad(drawPositions, face.getTexturePositionArray(direction), texture, context.blockPosition, context.meshCollection, tintColor, lightLevel)
         }
     }
 

src/main/java/de/bixilon/minosoft/gui/rendering/chunk/models/renderable/MultipartRenderer.kt

@@ -14,14 +14,8 @@
 package de.bixilon.minosoft.gui.rendering.chunk.models.renderable
 
 import de.bixilon.minosoft.data.Directions
-import de.bixilon.minosoft.data.mappings.blocks.BlockState
-import de.bixilon.minosoft.data.world.World
-import de.bixilon.minosoft.data.world.light.LightAccessor
-import de.bixilon.minosoft.gui.rendering.RenderWindow
-import de.bixilon.minosoft.gui.rendering.chunk.ChunkMeshCollection
 import de.bixilon.minosoft.gui.rendering.chunk.models.FaceSize
 import de.bixilon.minosoft.gui.rendering.textures.Texture
-import glm_.vec3.Vec3i
 
 class MultipartRenderer(
     val models: List<BlockLikeRenderer>,
@@ -45,9 +39,9 @@ class MultipartRenderer(
         this.faceBorderSizes = faceBorderSizes.toTypedArray()
     }
 
-    override fun render(blockState: BlockState, lightAccessor: LightAccessor, renderWindow: RenderWindow, blockPosition: Vec3i, meshCollection: ChunkMeshCollection, neighbourBlocks: Array<BlockState?>, world: World) {
+    override fun render(context: BlockLikeRenderContext) {
         for (model in models) {
-            model.render(blockState, lightAccessor, renderWindow, blockPosition, meshCollection, neighbourBlocks, world)
+            model.render(context)
         }
     }
 

src/main/java/de/bixilon/minosoft/gui/rendering/util/VecUtil.kt

@@ -16,10 +16,14 @@ package de.bixilon.minosoft.gui.rendering.util
 import com.google.gson.JsonArray
 import com.google.gson.JsonElement
 import com.google.gson.JsonObject
+import de.bixilon.minosoft.Minosoft
 import de.bixilon.minosoft.data.Axes
 import de.bixilon.minosoft.data.Directions
+import de.bixilon.minosoft.data.mappings.blocks.Block
+import de.bixilon.minosoft.data.mappings.blocks.RandomOffsetTypes
 import de.bixilon.minosoft.gui.rendering.chunk.models.loading.BlockModelElement
 import de.bixilon.minosoft.protocol.protocol.ProtocolDefinition
+import glm_.func.common.clamp
 import glm_.func.cos
 import glm_.func.sin
 import glm_.vec2.Vec2
@@ -172,4 +176,40 @@ object VecUtil {
     infix operator fun Vec2i.plus(direction: Directions): Vec2i {
         return this + direction.directionVector
     }
+
+    fun Vec3i.getWorldOffset(block: Block): Vec3 {
+        if (block.randomOffsetType == null || !Minosoft.config.config.game.other.flowerRandomOffset) {
+            return EMPTY_VEC3
+
+        }
+        val positionHash = generatePositionHash(x, 0, z)
+        val maxModelOffset = 0.25f // use block.model.max_model_offset
+
+        fun horizontal(axisHash: Long): Float {
+            return (((axisHash and 0xF) / 15.0f) - 0.5f) / 2.0f
+        }
+
+        return Vec3(
+            x = horizontal(positionHash),
+            y = if (block.randomOffsetType === RandomOffsetTypes.XYZ) {
+                (((positionHash shr 4 and 0xF) / 15.0f) - 1.0f) / 5.0f
+            } else {
+                0.0f
+            },
+            z = horizontal(positionHash shr 8)).clamp(-maxModelOffset, maxModelOffset)
+    }
+
+    private fun Vec3.clamp(min: Float, max: Float): Vec3 {
+        return Vec3(
+            x = x.clamp(min, max),
+            y = y.clamp(min, max),
+            z = z.clamp(min, max),
+        )
+    }
+
+    private fun generatePositionHash(x: Int, y: Int, z: Int): Long {
+        var hash = (x * 3129871L) xor z.toLong() * 116129781L xor y.toLong()
+        hash = hash * hash * 42317861L + hash * 11L
+        return hash shr 16
+    }
 }

src/main/java/de/bixilon/minosoft/util/MMath.kt

@@ -51,6 +51,16 @@ object MMath {
         return value
     }
 
+    fun clamp(value: Double, min: Double, max: Double): Double {
+        if (value < min) {
+            return min
+        }
+        if (value > max) {
+            return max
+        }
+        return value
+    }
+
     fun divideUp(value: Int, divider: Int): Int {
         return (value + divider - 1) / divider
     }