cocos2dx实现转盘旋转外加粒子效果

概述EllipseBy.h： #ifndef _ELLIPSEBY_H_#define _ELLIPSEBY_H_#include "cocos2d.h"USING_NS_CC;#define PI 3.14159//椭圆的参数信息struct EllipseConfig { //椭圆a的长度 float ellipseA; //椭圆b的长度 float ellipseB

EllipseBy.h：

#ifndef _ELliPSEBY_H_#define _ELliPSEBY_H_#include "cocos2d.h"USING_NS_CC;#define PI 3.14159//椭圆的参数信息struct EllipseConfig {	//椭圆a的长度	float ellipseA;	//椭圆b的长度	float ellipseB;	//椭圆的中心坐标	Vec2 cenPos;	//是否逆时针旋转	bool isAntiClockwise;	//目标开始旋转的位置，默认位置是在椭圆长轴右方,即值为0	float startAngle;	//目标自身的角度	float selfAngle;};class EllipseBy : public ActionInterval{public:	EllipseBy();	~EllipseBy();	//初始化函数，参数t为持续时间，config为椭圆参数	static EllipseBy * create(float t,const EllipseConfig & config);	bool initWithDuration(float t,const EllipseConfig & config);	//每帧更新当前椭圆坐标	virtual voID update(float time) overrIDe;	//在动作开始前调用	virtual voID startWithTarget(Node *target) overrIDe;	//动作的拷贝	virtual EllipseBy * clone() const overrIDe;	//动作的逆序	virtual EllipseBy * reverse() const overrIDe;protected:	//获得椭圆上当前点坐标	inline Vec2 & getPosWithEllipse(float t)	{		float angle = 2 * PI * ((m_config.isAntiClockwise ? t : (1 - t)) + m_config.startAngle / 360);		return Vec2(m_config.ellipseA * cos(angle),m_config.ellipseB * sin(angle));	}private:	EllipseConfig m_config;};#endif

EllipseBy.cpp：

#include "EllipseBy.h"EllipseBy::EllipseBy(){}EllipseBy::~EllipseBy(){}EllipseBy * EllipseBy::create(float t,const EllipseConfig & config){	auto pAction = new EllipseBy();	if (pAction && pAction->initWithDuration(t,config))	{		pAction->autorelease();	}	else	{		CC_SAFE_DELETE(pAction);	}	return pAction;}bool EllipseBy::initWithDuration(float t,const EllipseConfig & config){	if (!ActionInterval::initWithDuration(t))	{		return false;	}	m_config = config;	return true;}EllipseBy * EllipseBy::clone() const{	auto pAction = new EllipseBy();	pAction->initWithDuration(_duration,m_config);	pAction->autorelease();	return pAction;}EllipseBy * EllipseBy::reverse() const{	EllipseConfig resConfig = m_config;	resConfig.isAntiClockwise = !m_config.isAntiClockwise;	return EllipseBy::create(_duration,m_config);}voID EllipseBy::startWithTarget(Node *target){	ActionInterval::startWithTarget(target);}voID EllipseBy::update(float time){	if (_target)	{		Vec2 curPos = this->getPosWithEllipse(time);		float tmpAngle = m_config.selfAngle / 180 * PI;		float newX = curPos.x * cos(tmpAngle) + curPos.y * sin(tmpAngle);		float newY = curPos.y * cos(tmpAngle) - curPos.x * sin(tmpAngle);		_target->setposition(m_config.cenPos + Vec2(newX,newY));	}}

LotteryTurnTest.h：

#ifndef _LottERY_TURN_TEST_H_#define _LottERY_TURN_TEST_H_#include "cocos2d.h"USING_NS_CC;class LotteryTurnTest : public cocos2d::Layer{public:	LotteryTurntest();	~LotteryTurntest();	static cocos2d::Scene * create();	virtual bool init();protected:	voID onBtnCallback(Ref * obj);	voID onTurnEnd();private:	Sprite * m_turnBg;	MenuItemSprite * m_turnArr;	Sprite * m_pBg;	ParticleSystemQuad * m_pElliRtt_1;	ParticleSystemQuad * m_pElliRtt_2;	ParticleSystemQuad * m_pCircle_1;	ParticleSystemQuad * m_pCircle_2;};#endif

LotteryTurnTest.cpp：

#include "LotteryTurnTest.h"#include "EllipseBy.h"LotteryTurnTest::LotteryTurntest(): m_turnBg(nullptr),m_turnArr(nullptr),m_pBg(nullptr),m_pElliRtt_1(nullptr),m_pElliRtt_2(nullptr),m_pCircle_1(nullptr),m_pCircle_2(nullptr){}LotteryTurnTest::~LotteryTurntest(){}Scene * LotteryTurnTest::create(){	auto scene = Scene::create();	auto pLayer = new LotteryTurntest();	if (pLayer && pLayer->init())	{		pLayer->autorelease();		scene->addChild(pLayer);		return scene;	}	else	{		CC_SAFE_DELETE(pLayer);		return NulL;	}}bool LotteryTurnTest::init(){	if (!Layer::init())	{		return false;	}	auto bgSize = Director::getInstance()->getWinSize();	m_pBg = Sprite::create("LotteryTurn/bg_big.png");	m_pBg->setposition(Vec2(bgSize.wIDth / 2,bgSize.height / 2));	this->addChild(m_pBg);	//添加标题	auto plabel = Label::createWithTTF("LotteryTurnTest","Fonts/Marker Felt.ttf",30);	plabel->setposition(Vec2(bgSize.wIDth / 2,bgSize.height * 0.9));	m_pBg->addChild(plabel);	//添加转盘	m_turnBg = Sprite::create("LotteryTurn/turn_bg.png");	m_turnBg->setposition(Vec2(bgSize.wIDth / 2,bgSize.height / 2));	m_pBg->addChild(m_turnBg);	//添加指针	auto arrnor = Sprite::create("LotteryTurn/turn_arrow.png");	auto arrSel = Sprite::create("LotteryTurn/turn_arrow.png");	arrSel->setcolor(color3B(190,190,190));	m_turnArr = MenuItemSprite::create(arrnor,arrSel,CC_CALLBACK_1(LotteryTurnTest::onBtnCallback,this));	m_turnArr->setposition(Vec2(bgSize.wIDth / 2,bgSize.height * 0.557));	m_turnArr->setScale(0.7);	auto pMenu = Menu::createWithItem(m_turnArr);	pMenu->setposition(Vec2::ZERO);	m_pBg->addChild(pMenu);	//添加中奖之后的简单界面	auto awardLayer = Layercolor::create(color4B(0,100));	awardLayer->setposition(Point::ZERO);	awardLayer->setTag(100);	m_pBg->addChild(awardLayer,10);	awardLayer->setVisible(false);	return true;}voID LotteryTurnTest::onBtnCallback(Ref * obj){	//防止多次点击	m_turnArr->setEnabled(false);	srand(unsigned(time(NulL)));	float angleZ = rand() % 720 + 720;	auto pAction = EaseExponentialOut::create(RotateBy::create(4,Vec3(0,angleZ)));	m_turnBg->runAction(Sequence::create(pAction,CallFunc::create(CC_CALLBACK_0(LotteryTurnTest::onTurnEnd,this)),NulL));	//添加椭圆旋转粒子效果	m_pElliRtt_1 = ParticleSystemQuad::create("LotteryTurn/whiteBall.pList");	m_pBg->addChild(m_pElliRtt_1);	m_pElliRtt_2 = ParticleSystemQuad::create("LotteryTurn/yellowBall.pList");	m_pBg->addChild(m_pElliRtt_2);	//椭圆旋转	EllipseConfig config;	config.ellipseA = 100;	config.ellipseB = 50;	config.cenPos = m_turnBg->getposition();	config.isAntiClockwise = true;	config.startAngle = 0;	config.selfAngle = 45;	m_pElliRtt_1->runAction(RepeatForever::create( EllipseBy::create(2.5,config)));	config.startAngle = 180;	config.selfAngle = -45;	m_pElliRtt_2->runAction(RepeatForever::create(EllipseBy::create(2.5,config)));	//圈圈闪烁粒子效果	m_pCircle_1 = ParticleSystemQuad::create("LotteryTurn/bigCircle.pList");	m_pCircle_1->setposition(m_turnBg->getposition());	m_pBg->addChild(m_pCircle_1);	m_pCircle_1->runAction(RepeatForever::create(RotateBy::create(5,angleZ))));	m_pCircle_2 = ParticleSystemQuad::create("LotteryTurn/smallCircle.pList");	m_pCircle_2->setposition(m_turnBg->getposition());	m_pBg->addChild(m_pCircle_2);	m_pCircle_2->runAction(RepeatForever::create(RotateBy::create(5,angleZ))));}voID LotteryTurnTest::onTurnEnd(){	m_pElliRtt_1->removeFromParentAndCleanup(true);	m_pElliRtt_2->removeFromParentAndCleanup(true);	m_pCircle_1->removeFromParentAndCleanup(true);	m_pCircle_2->removeFromParentAndCleanup(true);		//d出抽中奖品	((Layercolor *)m_pBg->getChildByTag(100))->setVisible(true);	auto award = Sprite::create("LotteryTurn/award.png");	award->setAnchorPoint(Vec2(0.5,0));	award->setposition(Vec2(m_pBg->getpositionX(),m_pBg->getpositionY() * 2));	this->addChild(award);	auto bounce = EaseBounceOut::create(MoveBy::create(2,Vec2(0,-m_pBg->getpositionX() * 2)));	award->runAction(Sequence::createWithTwoActions(bounce,CallFuncN::create([=](Node * node){					award->removeFromParentAndCleanup(true);					((Layercolor *)m_pBg->getChildByTag(100))->setVisible(false);					m_turnArr->setEnabled(true);	})));}

总结

以上是内存溢出为你收集整理的cocos2dx实现转盘旋转外加粒子效果全部内容，希望文章能够帮你解决cocos2dx实现转盘旋转外加粒子效果所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。