feat(blocks): add ore block scaffolding (Coal, Iron, Gold, Diamond)

World/Blocks/BlockRegistry.cs

@@ -4,19 +4,25 @@ public sealed class BlockRegistry
 {
     private readonly IBlock[] _byId;
 
-    public AirBlock Air { get; } = new();
-    public StoneBlock Stone { get; } = new();
-    public DirtBlock Dirt { get; } = new();
-    public GrassBlock Grass { get; } = new();
-    public SandBlock Sand { get; } = new();
-    public SnowBlock Snow { get; } = new();
-    public WaterBlock Water { get; } = new();
+    public AirBlock        Air        { get; } = new();
+    public StoneBlock      Stone      { get; } = new();
+    public DirtBlock       Dirt       { get; } = new();
+    public GrassBlock      Grass      { get; } = new();
+    public SandBlock       Sand       { get; } = new();
+    public SnowBlock       Snow       { get; } = new();
+    public WaterBlock      Water      { get; } = new();
+    public CoalOreBlock    CoalOre    { get; } = new();
+    public IronOreBlock    IronOre    { get; } = new();
+    public GoldOreBlock    GoldOre    { get; } = new();
+    public DiamondOreBlock DiamondOre { get; } = new();
 
     public BlockRegistry()
     {
-        // Index by id. Order does not matter; slot = block.Id.
         IBlock[] blocks = new IBlock[]
-            { this.Air, this.Stone, this.Dirt, this.Grass, this.Sand, this.Snow, this.Water };
+        {
+            this.Air, this.Stone, this.Dirt, this.Grass, this.Sand, this.Snow, this.Water,
+            this.CoalOre, this.IronOre, this.GoldOre, this.DiamondOre,
+        };
         this._byId = new IBlock[blocks.Length];
         foreach (IBlock block in blocks)
         {

World/Blocks/CoalOreBlock.cs

@@ -0,0 +1,10 @@
+namespace VoxelEngine.World.Blocks;
+
+public sealed class CoalOreBlock : IBlock
+{
+    public ushort Id => 7;
+    public string Name => "Coal Ore";
+    public bool IsOpaque => true;
+    public bool IsSolid => true;
+    public TileCoord GetTextureTile(BlockFace face) => new(0, 0); // placeholder
+}

World/Blocks/DiamondOreBlock.cs

@@ -0,0 +1,10 @@
+namespace VoxelEngine.World.Blocks;
+
+public sealed class DiamondOreBlock : IBlock
+{
+    public ushort Id => 10;
+    public string Name => "Diamond Ore";
+    public bool IsOpaque => true;
+    public bool IsSolid => true;
+    public TileCoord GetTextureTile(BlockFace face) => new(0, 0); // placeholder
+}

World/Blocks/GoldOreBlock.cs

@@ -0,0 +1,10 @@
+namespace VoxelEngine.World.Blocks;
+
+public sealed class GoldOreBlock : IBlock
+{
+    public ushort Id => 9;
+    public string Name => "Gold Ore";
+    public bool IsOpaque => true;
+    public bool IsSolid => true;
+    public TileCoord GetTextureTile(BlockFace face) => new(0, 0); // placeholder
+}

World/Blocks/IronOreBlock.cs

@@ -0,0 +1,10 @@
+namespace VoxelEngine.World.Blocks;
+
+public sealed class IronOreBlock : IBlock
+{
+    public ushort Id => 8;
+    public string Name => "Iron Ore";
+    public bool IsOpaque => true;
+    public bool IsSolid => true;
+    public TileCoord GetTextureTile(BlockFace face) => new(0, 0); // placeholder
+}