feat: generate procedural world on load via WorldGenerator

Core/Game.cs

@@ -6,6 +6,7 @@ using OpenTK.Windowing.GraphicsLibraryFramework;
 using VoxelEngine.Rendering;
 using VoxelEngine.World.Blocks;
 using VoxelEngine.World.Chunk;
+using VoxelEngine.World.WorldGen;
 
 namespace VoxelEngine.Core;
 
@@ -13,12 +14,14 @@ public sealed class Game : GameWindow
 {
     private const float MoveSpeed = 8f;     // units per second
     private const float Sensitivity = 0.15f; // degrees per pixel
+    private const int Seed = 1337;
 
     private readonly BlockRegistry _registry = new();
     private Shader _shader = null!;
     private Texture _texture = null!;
     private readonly Dictionary<Vector3i, ChunkRenderer> _renderer = new();
     private Camera _camera = null!;
+    private WorldGenerator _generator = null!;
 
     private World.World _world;
 
@@ -37,11 +40,14 @@ public sealed class Game : GameWindow
         this._texture = new Texture("Assets/textures/VoxelShadeAtlas.png");
 
         this._world = new World.World(this._registry);
+        this._generator = new WorldGenerator(Game.Seed, this._registry);
 
-        for (int x = -2; x < 2; x++)
-        for (int z = -2; z < 2; z++)
+        for (int cx = -2; cx < 2; cx++)
+        for (int cz = -2; cz < 2; cz++)
+        for (int cy = 0; cy < WorldConstants.WorldHeightChunks; cy++)
         {
-            this._world.SetChunk(new Vector3i(x, 0, z), this.BuildChunk());
+            Vector3i pos = new(cx, cy, cz);
+            this._world.SetChunk(pos, this._generator.Generate(pos));
         }
 
         ChunkMesher mesher = new(this._texture.Width, this._texture.Height);
@@ -59,28 +65,13 @@ public sealed class Game : GameWindow
             this._renderer[pos] = new ChunkRenderer(mesh);
         }
 
-        this._camera = new Camera(new Vector3(8f, 20f, 40f), this.ClientSize.X / (float)this.ClientSize.Y);
+        this._camera = new Camera(
+            new Vector3(8f, WorldConstants.SeaLevel + 30f, 40f),
+            this.ClientSize.X / (float)this.ClientSize.Y);
 
         this.CursorState = CursorState.Grabbed;
     }
 
-    private Chunk BuildChunk()
-    {
-        Chunk chunk = new();
-        for (int x = 0; x < Chunk.Size; x++)
-        for (int z = 0; z < Chunk.Size; z++)
-        for (int y = 0; y < Chunk.Size; y++)
-        {
-            chunk[x, y, z] = y switch
-            {
-                Chunk.Size - 1 => this._registry.Grass.Id,
-                >= Chunk.Size - 4 => this._registry.Dirt.Id,
-                _ => this._registry.Stone.Id
-            };
-        }
-        return chunk;
-    }
-
     protected override void OnUpdateFrame(FrameEventArgs args)
     {
         base.OnUpdateFrame(args);