Cocos2d-X 物体重复运动的实现

Cocos2d-X 物体重复运动的实现

void Hook::runRotateAction() {     this->setAnchorPoint(CCPointMake(0.5, 1));     CCActionInterval *action1 = CCRotateTo::create(2,-90.0);     CCActionInterval *action2 = CCRotateTo::create(2, 90.0);     float rotate = this->getRotation();     CCSequence *action3;     if(rotate>0)     {         action3 = CCSequence::create(action1,action2,NULL);     }     else     {         action3 = CCSequence::create(action2,action1,NULL);     }     CCRepeatForever *repeat = CCRepeatForever::create(action3);     this->runAction(repeat); } void Hook::runBack() {     CCSize winSize = CCDirector::sharedDirector()->getWinSize();     CCActionInterval *action4 = CCMoveTo::create(2, ccp(winSize.width/2-2, winSize.height/2-20));     CCCallFunc *func = CCCallFunc::create(this, callfunc_selector(Hook::runRotateAction));     CCSequence *seq = CCSequence::create(action4,func,NULL);     this->runAction(seq); } void Hook::runToPoint(CCPoint point) {     this->stopAllActions();     CCPoint start =  this->getPosition();     float distance = sqrtf((start.x-point.x)*(start.x-point.x) +  (start.y-point.y)*(start.y-point.y));     float time = distance*0.01;     CCActionInterval *actionTo = CCMoveTo::create(time, point);     CCCallFunc *fun = CCCallFunc::create(this, callfunc_selector(Hook::runBack));     CCSequence *seq = CCSequence::create(actionTo,fun,NULL);     this->runAction(seq); } void Hook::runTargetAction() {     float x;     float y;     if(this->getRotation()>0)     {         if(this->getRotation()<=45)         {             y=0.0;             x= 240-160*tan(this->getRotation()*3.1415/180);         }         else         {             y=160-240/tan(this->getRotation()*3.1415/180);             x= 0.0;         }     }     else if(this->getRotation()<0)     {         if(this->getRotation()<=-45)         {             y=160+240/tan(this->getRotation()*3.1415/180);             x= 480;         }         else         {             y=0;             x= 240-160*tan(this->getRotation()*3.1415/180);         }     }     else if(this->getRotation() == 0)     {         x= 240;         y= 160;     }     this->runToPoint(ccp(x, y)); }

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