ontology.py 文件源码

def _readMultiActions(self, game):
        """ Read multiple simultaneously pressed button actions. """
        from pygame.locals import K_LEFT, K_RIGHT, K_UP, K_DOWN, K_a, K_s, K_d, K_w
        res = []
        if self.alternate_keys:
            if   game.keystate[K_d]: res += [RIGHT]
            elif game.keystate[K_a]:  res += [LEFT]
            if   game.keystate[K_w]:    res += [UP]
            elif game.keystate[K_s]:  res += [DOWN]
        else:
            if   game.keystate[K_RIGHT]: res += [RIGHT]
            elif game.keystate[K_LEFT]:  res += [LEFT]
            if   game.keystate[K_UP]:    res += [UP]
            elif game.keystate[K_DOWN]:  res += [DOWN]
        return res