Support custom tile size ingame

OpenRA.Game/Graphics/Minimap.cs

@@ -14,6 +14,7 @@ using System.Drawing.Imaging;
 using System.Linq;
 using OpenRA.FileFormats;
 using OpenRA.Traits;
+using System.IO;
 
 namespace OpenRA.Graphics
 {
@@ -38,6 +39,9 @@ namespace OpenRA.Graphics
 						var mapX = x + map.TopLeft.X;
 						var mapY = y + map.TopLeft.Y;
 						var type = tileset.GetTerrainType(map.MapTiles[mapX, mapY]);
+						if (!tileset.Terrain.ContainsKey(type))
+							throw new InvalidDataException("Tileset {0} lacks terraintype {1}".F(tileset.Id, type));
+					
 						*(c + (y * bitmapData.Stride >> 2) + x) = tileset.Terrain[type].Color.ToArgb();
 					}
 			}

OpenRA.Game/Graphics/TerrainRenderer.cs

@@ -31,7 +31,6 @@ namespace OpenRA.Graphics
 			this.map = world.Map;
 
 			Size tileSize = new Size( Game.CellSize, Game.CellSize );
-
 			var tileMapping = new Cache<TileReference<ushort,byte>, Sprite>(
 				x => Game.modData.SheetBuilder.Add(world.TileSet.GetBytes(x), tileSize));
 
@@ -47,7 +46,7 @@ namespace OpenRA.Graphics
 				{
 					Sprite tile = tileMapping[map.MapTiles[i, j]];
 					// TODO: The zero below should explicitly refer to the terrain palette, but this code is called
-					// before the palettes are created
+					// before the palettes are created. Therefore assumes that "terrain" is the first palette to be defined
 					Util.FastCreateQuad(vertices, indices, Game.CellSize * new float2(i, j), tile, 0, nv, ni, tile.size);
 					nv += 4;
 					ni += 6;