public void StartGame(Civilization playerCivilization, ArrayList civilizations, string leaderName, WorldSize mapSize)
{
_cityBitmap = new Bitmap("City.bmp");
_cityBitmap.MakeTransparent(TransparentColor.Value);
_gameRoot = GameRoot.GetGameRoot();
_villageBitmap = new Bitmap("village.bmp");
_villageBitmap.MakeTransparent(TransparentColor.Value);
_roadNSBitmap = new Bitmap("road_ns.bmp");
_roadNSBitmap.MakeTransparent(TransparentColor.Value);
_roadEWBitmap = new Bitmap("road_ew.bmp");
_roadEWBitmap.MakeTransparent(TransparentColor.Value);
_activeBitmap = new Bitmap("active.bmp");
_activeBitmap.MakeTransparent(TransparentColor.Value);
_irrigationBitmap = new Bitmap("irrigation.bmp");
_irrigationBitmap.MakeTransparent(TransparentColor.Value);
_grassBitmap = new Bitmap(@"images\grass.bmp");
_grassBitmap.MakeTransparent(TransparentColor.Value);
_gameRoot.StatusChanged += new StatusChangedEventHandler(OnStatusChanged);
_gameRoot.MapSize = mapSize;
_gameRoot.Start(playerCivilization, civilizations, leaderName);
}