feat(world-gen): integrate CaveCarver into WorldGenerator.Generate

World/WorldGen/WorldGenerator.cs

@@ -1,4 +1,5 @@
 using OpenTK.Mathematics;
+using VoxelEngine.Core;
 using VoxelEngine.World.Blocks;
 using VoxelChunk = VoxelEngine.World.Chunk.Chunk;
 
@@ -12,8 +13,9 @@ public sealed class WorldGenerator
     private readonly BlockRegistry _blocks;
     private readonly BiomeMap _biomeMap;
     private readonly TerrainSampler _terrain;
+    private readonly CaveCarver _caves;
 
-    public WorldGenerator(int seed, BlockRegistry blocks)
+    public WorldGenerator(int seed, BlockRegistry blocks, Configuration cfg)
     {
         this._blocks = blocks;
         NoiseSource noise = new(seed);
@@ -21,6 +23,7 @@ public sealed class WorldGenerator
         BiomeRegistry biomes = new(seed, blocks);
         this._biomeMap = new BiomeMap(noise, cells, biomes);
         this._terrain = new TerrainSampler(noise, this._biomeMap);
+        this._caves = new CaveCarver(seed, blocks, cfg);
     }
 
     public int SurfaceHeightAt(int worldX, int worldZ) => this._terrain.HeightAt(worldX, worldZ);
@@ -46,10 +49,11 @@ public sealed class WorldGenerator
                 chunk[x, y, z] = WorldGenerator.BlockAt(worldY, height, biome, this._blocks);
             }
         }
+
+        this._caves.Carve(chunk, chunkPos);
         return chunk;
     }
 
-    // Pure column fill rule, extracted for testability.
     public static ushort BlockAt(int worldY, int surfaceHeight, IBiome biome, BlockRegistry blocks)
     {
         if (worldY > surfaceHeight)