https://b.hatena.ne.jp/entry/s/turtle.rs/ You control a turtle with a pen tied to its tail. As it moves across the screen, it draws the path that it follows. Change the turtle's speed, its pen's color, and more to create more complex drawi... https://b.hatena.ne.jp/System/20190729#bookmark-4667305532520040866 2019-07-29T07:46:35Z rust 2D https://b.hatena.ne.jp/theatrical/20171207#bookmark-351146089 2017-12-06T17:57:29Z