Added textures for Blocks

Sandbox/src/VoxelFun/BlockTexture.bf

@@ -0,0 +1,28 @@
+using System;
+using GlitchyEngine.Math;
+
+namespace Sandbox.VoxelFun
+{
+	class BlockTexture
+	{
+		private String _fileName;
+
+		public String FileName => _fileName;
+
+		private Vector2 _atlasStart;
+		private Vector2 _atlasSize;
+
+		[AllowAppend]
+		public this(String fileName)
+		{
+			String str = append String(fileName);
+
+			_fileName = str;
+		}
+
+		public Vector2 TransformTexCoords(Vector2 texCoords)
+		{
+			return _atlasStart + texCoords * _atlasSize;
+		}
+	}
+}