Overlay rendering

- also, sequences for HBOX and PBOX

OpenRa.Game/Graphics/OverlayRenderer.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRa.FileFormats;
+
+namespace OpenRa.Game.Graphics
+{
+	class OverlayRenderer
+	{
+		static string[] overlaySpriteNames = new string[]
+			{
+				"sbag", "cycl", "brik", "fenc", "wood",
+				"gold01", "gold02", "gold03", "gold04",
+				"gem01", "gem02", "gem03", "gem04",
+				"v12", "v13", "v14", "v15", "v16", "v17", "v18",
+				"fpls", "wcrate", "scrate", "barb", "sbag"
+			};
+		Sprite[][] overlaySprites;
+
+		SpriteRenderer spriteRenderer;
+		Map map;
+
+		public OverlayRenderer( Renderer renderer, Map map )
+		{
+			this.spriteRenderer = new SpriteRenderer( renderer, true );
+			this.map = map;
+
+			overlaySprites = new Sprite[ overlaySpriteNames.Length ][];
+			for( int i = 0 ; i < overlaySpriteNames.Length ; i++ )
+				overlaySprites[ i ] = SpriteSheetBuilder.LoadAllSprites( overlaySpriteNames[ i ], ".shp", ".tem", ".sno" );
+		}
+
+		public void Draw()
+		{
+			for( int y = 0 ; y < 128 ; y++ )
+			{
+				for( int x = 0 ; x < 128 ; x++ )
+				{
+					if( map.MapTiles[ x, y ].overlay < overlaySprites.Length )
+					{
+						var location = new int2( x, y );
+						var sprites = overlaySprites[ map.MapTiles[ x, y ].overlay ];
+						spriteRenderer.DrawSprite( sprites[ sprites.Length / 2-1 ], 24 * (float2)( location - map.Offset ), 0 );
+					}
+				}
+			}
+
+			spriteRenderer.Flush();
+		}
+	}
+}