bean

src/main/java/me/cortex/voxelmon/Voxelmon.java

@@ -1,4 +1,13 @@
 package me.cortex.voxelmon;
 
-public class Voxelmon {
+import me.cortex.voxelmon.terrain.TestSparseGenCommand;
+import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.api.ModInitializer;
+import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
+
+public class Voxelmon implements ClientModInitializer {
+    @Override
+    public void onInitializeClient() {
+        CommandRegistrationCallback.EVENT.register((dispatcher, registryAccess, environment) -> TestSparseGenCommand.register(dispatcher));
+    }
 }

src/main/java/me/cortex/voxelmon/core/VoxelCore.java

@@ -57,7 +57,7 @@ public class VoxelCore {
         //Trigger the shared index buffer loading
         SharedIndexBuffer.INSTANCE.id();
         this.renderer = new Gl46FarWorldRenderer();
-        this.world = new WorldEngine(new File("ethoslab.db"), 16, 5);//"hc9.db"//"storagefile.db"
+        this.world = new WorldEngine(new File("storagefile.db"), 16, 5);//"hc9.db"//"storagefile.db"
 
         this.renderTracker = new RenderTracker(this.world, this.renderer);
         this.renderGen = new RenderGenerationService(this.world, this.renderTracker,4);
@@ -90,7 +90,7 @@ public class VoxelCore {
 
 
         //WorldImporter importer = new WorldImporter(this.world, MinecraftClient.getInstance().world);
-        //importer.importWorldAsyncStart(new File("saves/Etho's LP Ep550/region"));
+        //importer.importWorldAsyncStart(new File("saves/New World/region"));
 
         Set<Block> biomeTintableAllFaces = new HashSet<>(List.of(Blocks.OAK_LEAVES, Blocks.JUNGLE_LEAVES, Blocks.ACACIA_LEAVES, Blocks.DARK_OAK_LEAVES, Blocks.VINE, Blocks.MANGROVE_LEAVES,
                 Blocks.TALL_GRASS, Blocks.LARGE_FERN));

src/main/java/me/cortex/voxelmon/core/world/WorldEngine.java

@@ -78,11 +78,13 @@ public class WorldEngine {
     public void tryUnload(WorldSection section) {
         synchronized (this.loadedSectionCache[section.lvl]) {
             if (section.getRefCount() != 0) {
+                section.assertNotFree();
                 return;
             }
+
             //TODO: make a thing where it checks if the section is dirty, if it is, enqueue it for a save first and return
 
-            section.setFreed();
+            section.setFreed();//TODO: FIXME THIS IS SOMEHOW FAILING
             var removedSection = this.loadedSectionCache[section.lvl].remove(section.getKey());
             if (removedSection != section) {
                 throw new IllegalStateException("Removed section not the same as attempted to remove");

src/main/java/me/cortex/voxelmon/terrain/SparseTerrainGenerator.java

@@ -0,0 +1,75 @@
+package me.cortex.voxelmon.terrain;
+
+import net.minecraft.registry.entry.RegistryEntry;
+import net.minecraft.util.math.ColumnPos;
+import net.minecraft.world.biome.Biome;
+import net.minecraft.world.biome.source.BiomeSource;
+import net.minecraft.world.biome.source.util.MultiNoiseUtil;
+import net.minecraft.world.gen.densityfunction.DensityFunction;
+import net.minecraft.world.gen.noise.NoiseConfig;
+
+import java.util.List;
+
+public class SparseTerrainGenerator {
+
+    private final DensityFunction initialDensity;
+    private final DensityFunction finalDensity;
+    private final BiomeSource biomeSource;
+    private final MultiNoiseUtil.MultiNoiseSampler biomeSampler;
+    public SparseTerrainGenerator(NoiseConfig config, BiomeSource biomeSource) {
+        this.biomeSource = biomeSource;
+
+        var router = config.getNoiseRouter();
+        this.initialDensity = router.initialDensityWithoutJaggedness();
+        this.finalDensity = router.finalDensity();
+
+        this.biomeSampler = new MultiNoiseUtil.MultiNoiseSampler(router.temperature(), router.vegetation(), router.continents(), router.erosion(), router.depth(), router.ridges(), List.of());
+    }
+
+    public int getInitialHeight(int x, int z) {
+        int minHeight = -64;
+        int verticalCellBlockCount = 8;
+        int worldHeight = 384;
+        for(int y = minHeight + worldHeight; y >= minHeight; y -= verticalCellBlockCount) {
+            if (this.initialDensity.sample(new DensityFunction.UnblendedNoisePos(x, y, z)) > 0.390625) {
+                return y;
+            }
+        }
+
+        return Integer.MAX_VALUE;
+    }
+
+    public RegistryEntry<Biome> getBiome(int bx, int by, int bz) {
+        return this.biomeSource.getBiome(bx, by, bz, this.biomeSampler);
+    }
+
+
+
+
+    private final class NoisePos implements DensityFunction.NoisePos {
+        private final int x;
+        private final int y;
+        private final int z;
+
+        private NoisePos(int x, int y, int z) {
+            this.x = x;
+            this.y = y;
+            this.z = z;
+        }
+
+        @Override
+        public int blockX() {
+            return this.x;
+        }
+
+        @Override
+        public int blockY() {
+            return this.y;
+        }
+
+        @Override
+        public int blockZ() {
+            return this.z;
+        }
+    }
+}

src/main/java/me/cortex/voxelmon/terrain/TestSparseGenCommand.java

@@ -0,0 +1,30 @@
+package me.cortex.voxelmon.terrain;
+
+import com.mojang.brigadier.CommandDispatcher;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.server.command.ServerCommandSource;
+
+import static net.minecraft.server.command.CommandManager.literal;
+
+public class TestSparseGenCommand {
+    public static void register(CommandDispatcher<ServerCommandSource> dispatcher) {
+        dispatcher.register(literal("testsparsegen")
+                .executes(ctx -> test()));
+    }
+
+    private static int test() {
+        var world = MinecraftClient.getInstance().getServer().getWorld(MinecraftClient.getInstance().world.getRegistryKey());
+        var gen = new SparseTerrainGenerator(world.getChunkManager().getNoiseConfig(), world.getChunkManager().getChunkGenerator().getBiomeSource());
+        long s = System.currentTimeMillis();
+        int c = 0;
+        for (int x = -50; x <= 50; x++) {
+            for (int z = -50; z <= 50; z++) {
+                var biome = gen.getBiome((x*16)>>2, 64>>2, (z*16)>>2);
+                int minHeight = gen.getInitialHeight(x*16, z*16);
+                c += minHeight;
+            }
+        }
+        System.err.println((System.currentTimeMillis()-s) + " e " + c);
+        return 0;
+    }
+}

src/main/resources/fabric.mod.json

@@ -11,6 +11,7 @@
   "icon": "assets/voxelmon/icon.png",
   "environment": "client",
   "entrypoints": {
+    "client": ["me.cortex.voxelmon.Voxelmon"]
   },
   "mixins": [
     "voxelmon.mixins.json"