public static boolean isGrass(int num) {
		return num == Tile.GRASS.getId() || num == Tile.GRASS2.getId() || num == Tile.GRASS3.getId()
				|| num == Tile.GRASS4.getId() || num == Tile.GRASS5.getId() || num == Tile.GRASS_POPPY.getId()
				|| num == Tile.GRASS_FLOWER.getId();
	}