cocos2dx 对全部动作或单个动作速度的改变

末蓝、 2022-05-13 03:08 325阅读 0赞

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### 一、对全部CCActionInterval动作进行加速或减速,这个很简单只要一句代码就可以。 ###

CCDirector::sharedDirector()->getScheduler()->setTimeScale(2);//以目前2倍速度播放
        CCDirector::sharedDirector()->getScheduler()->setTimeScale(0.5);//以目前0.5倍速度播放

### 二、对个别单个动作进行加速或减速 ###

### 有两种方法 ###

### 1.通过CCSpeed实现 ###

CCSprite* sprite = CCSprite::create();
        CCActionInterval *jump = CCJumpBy::create(4, ccp(0,0), 100, 4);
        sprite->runAction(CCSpeed::create(jump, 2));//以2倍速度播放动作

#### 2.通过CCActionManager实现，着重讲这个方法 ####

CCScheduler* scheduler1;
    void HelloWorld::myInit11()
    {
        CCSize size = CCDirector::sharedDirector()->getWinSize();
        
        CCControlSlider* slider1 = CCControlSlider::create("sliderTrack.png", "sliderProgress.png", "sliderThumb.png");
        slider1->setPosition(ccp(size.width/4*2, size.height*0.3));
        this->addChild(slider1);
        slider1->setTag(1);
        //最小值
        slider1->setMinimumValue(0);
        //最大值
        slider1->setMaximumValue(5);
        //回调函数
        slider1->addTargetWithActionForControlEvents(this, cccontrol_selector(HelloWorld::sliderAction), CCControlEventValueChanged);
        
        
        // Create a new scheduler, and link it to the main scheduler
        scheduler1 = new CCScheduler();
        CCDirector::sharedDirector()->getScheduler()->scheduleUpdateForTarget(scheduler1, 0, false);
        
        // Create a new ActionManager, and link it to the new scheudler
        CCActionManager* actionManager1 = new CCActionManager();
        scheduler1->scheduleUpdateForTarget(actionManager1, 0, false);
        
        
        //左边精灵
        CCActionInterval *jump1 = CCJumpBy::create(4, ccp(0,0), 100, 4);
        CCActionInterval *jump2 = jump1->reverse();
        CCSequence* seq = CCSequence::create(jump2, jump1, NULL);
        CCRepeatForever* action = CCRepeatForever::create(seq);
        
        CCSprite* left = CCSprite::create("Icon.png");
        left->setPosition(ccp(size.width/4*1, size.height*0.5));
        this->addChild(left);
        // IMPORTANT: Set the actionManager running any action
        left->setActionManager(actionManager1);
        left->runAction(action);
        
        
        //中间精灵
        CCSprite* middle = CCSprite::create("Icon.png");
        middle->setPosition(ccp(size.width/4*2, size.height*0.5));
        this->addChild(middle);
        middle->setActionManager(actionManager1);
        middle->runAction(CCRepeatForever::create(CCRotateBy::create(2, 360)));
        
        
        //右边精灵
        CCSprite* right = CCSprite::create("Icon.png");
        right->setPosition(ccp(size.width/4*3, size.height*0.5));
        this->addChild(right);
        CCActionInterval* scale1 = CCScaleBy::create(1, 2);
        CCActionInterval* scale2 = scale1->reverse();
        CCSequence* seq2 = CCSequence::create(scale1, scale2, NULL);
        CCRepeatForever* action2 = CCRepeatForever::create(seq2);
        right->setActionManager(actionManager1);
        right->runAction(action2);
    }
    
    void HelloWorld::sliderAction(CCObject* pSender, CCControlEvent controlEvent)
    {
        CCControlSlider* pSliderCtl = (CCControlSlider*)pSender;
        float value = pSliderCtl->getValue();
        
        scheduler1->setTimeScale(value);
    }
    
    HelloWorld::~HelloWorld()
    {
        scheduler1->release();
    }