__init__.py 文件源码

def collide_simple_with_sprite(self, sprite, collision_detector):
        """
        Collides a Sprite (that only obeys simple physics rules) with a TiledTileLayer and solves all detected collisions.
        The Sprite needs to have the properties vx and vy, which are interpreted as the Sprite's velocity.
        Ignores slopes.

        :param Sprite sprite: the Sprite to test for collisions against a TiledTileLayer
        :param callable collision_detector: the collision detector method to use (this is set in the Sprite's Stage's options)
        """
        tile_start_x, tile_end_x, tile_start_y, tile_end_y = self.get_overlapping_tiles(sprite)

        xy, v = Stage.estimate_sprite_direction(sprite)

        # very simple algo: look through tile list (in no particular order) and return first tile that collides
        # None if no colliding tile found
        for tile_x in range(tile_start_x, tile_end_x + 1):
            for tile_y in range(tile_start_y, tile_end_y + 1):
                tile_sprite = self.tile_sprites[tile_x, tile_y]
                if not tile_sprite:
                    continue
                col = collision_detector(sprite, tile_sprite, collision_objects=None,
                                         direction=xy, direction_veloc=v, original_pos=(sprite.rect.x, sprite.rect.y))
                if col:
                    return col
        return None