tile.py

# --------------------------------------------------------------------------------- #

class Tile:
    def __init__(self, img):
        self.img = img
        self.index = -1
        self.edges = []
        self.up = []
        self.right = []
        self.down = []
        self.left = []

    # draw a single tile
    def draw(self, win, x, y):
        win.blit(self.img, (x, y))

    # set the rules for each tile
    def set_rules(self, tiles):
        for tile in tiles:
            # up
            if self.edges[0] == tile.edges[2]:
                self.up.append(tile)
            # right
            if self.edges[1] == tile.edges[3]:
                self.right.append(tile)
            # down
            if self.edges[2] == tile.edges[0]:
                self.down.append(tile)
            # left
            if self.edges[3] == tile.edges[1]:
                self.left.append(tile)