__init__.py 文件源码

def __init__(self, pytmx_layer, pytmx_tiled_map, tile_sprite_handler):
        """
        :param pytmx.pytmx.TiledTileLayer pytmx_layer: the underlying pytmx TiledTileLayer
        :param pytmx.pytmx.TiledMap pytmx_tiled_map: the underlying pytmx TiledMap object (representing the tmx file)
        :param callable tile_sprite_handler: the callable that returns an ndarray, populated with TileSprite objects for storage in this layer
        """
        super().__init__(pytmx_layer, pytmx_tiled_map)

        self.type_str = self.properties.get("type", "none")
        self.type = 0
        # get type mask of this layer from `type` property
        for t in self.type_str.split(","):
            self.type |= Sprite.get_type(t)

        # an ndarray holding all single tiles (by x/y position) from this layer
        # non-existing tiles are not(!) stored in this ndarray and return None at the respective x/y position
        self.tile_sprites = tile_sprite_handler(self)

        # update do_render indicator depending on some debug settings
        self.do_render = (self.properties["do_render"] == "true" and not (DEBUG_FLAGS & DEBUG_DONT_RENDER_TILED_TILE_LAYERS)) or \
                         (self.type != Sprite.get_type("none") and (DEBUG_FLAGS & DEBUG_RENDER_COLLISION_TILES))
        self.render_order = int(self.properties["render_order"])

        # put this layer in one single Sprite that we can then blit on the display (with 'area=[some rect]' to avoid drawing the entire layer each time)
        self.pygame_sprite = None
        # we are rendering this layer, need to store entire image in this structure
        if self.do_render:
            self.pygame_sprite = self.build_sprite_surface()