‎Cocos2d-x 学习笔记(11.10) Spawn

Spawn让多个action同时执行。

Spawn有多种不同的create方法,最终都调用了createWithTwoActions(FiniteTimeAction *action1, FiniteTimeAction *action2)方法。

createWithTwoActions调用initWithTwoActions方法:

对两个action变量初始化:

_one = action1;
_two = action2;

如果两个action时间不同,创建Sequence,包含短时间action和暂停action,用Sequence替代短时间action,达到两个action时间一致:

        if (d1 > d2)
        {
            _two = Sequence::createWithTwoActions(action2, DelayTime::create(d1 - d2));
        } 
        else if (d1 < d2)
        {
            _one = Sequence::createWithTwoActions(action1, DelayTime::create(d2 - d1));
        }

startWithTarget对两个action初始化:

    ActionInterval::startWithTarget(target);
    _one->startWithTarget(target);
    _two->startWithTarget(target);

update中执行两个action的update。

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转载自www.cnblogs.com/deepcho/p/cocos2dx-spawn.html