C++-如何在Cocos2d-x中随机选择上下左右一个方向?

Question

我在程序中用

enum {
    TANK_CONTROL_MOVE_UP,
    TANK_CONTROL_MOVE_RIGHT,
    TANK_CONTROL_MOVE_DOWN,
    TANK_CONTROL_MOVE_LEFT
};

Answer 1

int DirectionAll[4] = {TANK_CONTROL_MOVE_UP, TANK_CONTROL_MOVE_RIGHT, TANK_CONTROL_MOVE_DOWN, TANK_CONTROL_MOVE_LEFT};

int direction = DirectionAll[(rand()%4)];

感谢@王辉