XNA 4.0 Game Development by Example Beginner's Guide

Time for action – supporting map transitions

1. Add a new helper method to the Helper Methods region of the Player class:

   private void checkLevelTransition()
   {
       Vector2 centerCell = TileMap.GetCellByPixel(WorldCenter);
       if (TileMap.CellCodeValue(centerCell).StartsWith("T_"))
       {
           string[] code = TileMap.CellCodeValue(centerCell).Split('_');
        
           if (code.Length != 4)
             return;
   
           LevelManager.LoadLevel(int.Parse(code[1]));
   
           WorldLocation = new Vector2(
               int.Parse(code[2]) * TileMap.TileWidth,
               int.Parse(code[3]) * TileMap.TileHeight);
          
           LevelManager.RespawnLocation = WorldLocation;
   
           velocity = Vector2.Zero;
       }
   }

2. Modify the Update() method of the Player class to add a check for pressing the Up key or pressing Up on the gamepad to check the current square for an available ...