box2d_env.py 文件源码

def render(self, states=None, actions=None, pause=False):
        if not self.viewer:
            self.viewer = Box2DViewer(self.world)
        if states or actions or pause:
            raise NotImplementedError
        if not self.viewer:
            self.start_viewer()
        if self.viewer:
            self.viewer.loop_once()