pad.py 文件源码

def update(cls):
        key = cls.getch()
        if key is not None:
            if key == curses.KEY_UP:
                cls.PAD_Y = max(cls.PAD_Y - 1, 0)
            elif key == curses.KEY_DOWN:
                cls.PAD_Y = min(
                    cls.PAD_Y + 1,
                    cls.PAD_HEIGHT - (cls.HEIGHT + 1)
                )
            elif key == curses.KEY_LEFT:
                cls.PAD_X = max(cls.PAD_X - 1, 0)
            elif key == curses.KEY_RIGHT:
                cls.PAD_X = min(
                    cls.PAD_X + 1,
                    cls.PAD_WIDTH - (cls.WIDTH + 1)
                )
            elif key == ord('q'):
                cls.trigger('quit')
        for y in range(cls.PAD_Y, cls.PAD_Y + cls.HEIGHT):
            s = cls.MAP[y][cls.PAD_X:cls.PAD_X + cls.PAD_HEIGHT]
            s = ''.join(x for x in s)
            cls.addstr(s, cls.PAD_X, y)
        cls.refresh()