git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@2049 993157c7-ee19-0410-b2c4-bb4e9862e678

OpenRa.Game/Graphics/Sprite.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Drawing;
+
+namespace OpenRa.Game.Graphics
+{
+	class Sprite
+	{
+		public readonly Rectangle bounds;
+		public readonly Sheet sheet;
+		public readonly TextureChannel channel;
+		public readonly RectangleF uv;
+		public readonly float2 size;
+
+        readonly float2[] uvhax;
+
+		internal Sprite(Sheet sheet, Rectangle bounds, TextureChannel channel)
+		{
+			this.bounds = bounds;
+			this.sheet = sheet;
+			this.channel = channel;
+
+			uv = new RectangleF(
+					(float)(bounds.Left + 0.5f) / sheet.Size.Width,
+					(float)(bounds.Top + 0.5f) / sheet.Size.Height,
+					(float)(bounds.Width) / sheet.Size.Width,
+					(float)(bounds.Height) / sheet.Size.Height);
+
+            uvhax = new float2[]
+            {
+                new float2( uv.Left, uv.Top ),
+                new float2( uv.Right, uv.Top ),
+                new float2( uv.Left, uv.Bottom ),
+                new float2( uv.Right, uv.Bottom ),
+            };
+
+			this.size = new float2(bounds.Size);
+		}
+
+        public float2 FastMapTextureCoords(int k)
+        {
+            return uvhax[k];
+        }
+    }
+
+	public enum TextureChannel
+	{
+		Red = 0,
+		Green = 1,
+		Blue = 2,
+		Alpha = 3,
+	}
+}