public void addCollectable(int tileX, int tileY, int tileType)
	{
		Tile collectable = null;
		
		if(tileType == TileTypes.DIAMOND)
		{
			collectable = new TileCollectableDiamond(tileX * Tile.TILE_SIZE, tileY * Tile.TILE_SIZE, true);
		}
		else if(tileType == TileTypes.GOLD)
		{
			collectable = new TileCollectableGold(tileX * Tile.TILE_SIZE, tileY * Tile.TILE_SIZE, true);
		}
		
		collectables[tileX][tileY] = collectable;
	}