def checkWallsBetween(p1, p2):
            wall = True
            step = 1
            if int(p1.x) == int(p2.x):
                if p1.y > p2.y:
                    step = -1
                for y in range(int(p1.y), int(p2.y), step):
                    x = get_x_straight(y, p1, p2)
                    if (game.level.tiles[int(x)][int(y)] == model.Tile.WALL):
                        wall = False
            else:
                if p1.x > p2.x:
                    step = -1
                for x in range(int(p1.x), int(p2.x), step):
                    y = get_y_straight(x, p1, p2)
                    if (game.level.tiles[int(x)][int(y)] == model.Tile.WALL):
                        wall = False
            return wall