Plane using vectors to achieve eight game characters to the map, walk, run, stop.

说明：平面向量运用，实现游戏人物八向图，走，跑，停止。

youdao

Plane using vectors to achieve eight game characters to the map, walk, run, stop.

说明：平面向量运用，实现游戏人物八向图，走，跑，停止。

youdao