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Cocos2d-X中的ProgressTimer



ProgressTimer即进度条,进度条在游戏开发中运用非常广泛,例如在一些格斗游戏中,显示血液的变化,还有游戏加载进度,等都离不开进度条

Cocos2d-X中使用CCProgressTimer创建进度条

先从一个简单的例子使用ProgressTimer屏蔽部分精灵

首先在工程目录下的Resource文件夹中放一张图片

然后创建一个ProgressTimer类

在ProgressTimer.h中添加下面的代码

#ifndef __ProgressTimer_H__
#define __ProgressTimer_H__

#include "cocos2d.h"
USING_NS_CC;

class ProgressTimer : public CCLayer
{
public:
    virtual bool init();  

    static CCScene* scene();
    
    CREATE_FUNC(ProgressTimer);

   void scheduleFunc(float dt);
};

#endif // __ProgressTimer_H__

在ProgressTimer.cpp中添加下面的代码

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    //初始化父类
    CCLayer::init();

    //得到窗口的大小
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //设置坐标
    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);

    //创建精灵
    CCSprite* sprite = CCSprite::create("labelatlasimg.png");
   
    //用精灵创建进度条
    CCProgressTimer* progress = CCProgressTimer::create(sprite);
    addChild(progress);

    //设置进度条的位置
    progress->setPosition(center);

    //设置百分比(显示进度条的50%)
    progress->setPercentage(50);

    return true;
}

执行结果:


实例2:显示前半部分

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    //初始化父类
    CCLayer::init();

    //得到窗口的大小
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //设置坐标
    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);

    //创建精灵
    CCSprite* sprite = CCSprite::create("labelatlasimg.png");
   
    //用精灵创建进度条
    CCProgressTimer* progress = CCProgressTimer::create(sprite);
    addChild(progress);

    //设置进度条的位置
    progress->setPosition(center);

   

    //设置进度条的模式
    //kCCProgressTimerTypeBar表示条形模式
    //默认的模式是kCCProgressTimerTypeRadial(圆圈模式)
    progress->setType(kCCProgressTimerTypeBar);

    //设置进度条变化的方向
    //setMidpoint默认在左边
    //ccp(1,0)表示在X轴方向上有变化,在y轴方向上没变化
      //ccp(0,1)表示在X轴方向上没有变化,在y轴方向上有变化
    progress->setBarChangeRate(ccp(1,0));

    //从哪个方向开始变化
    //ccp(0,0)表示从左边开始变化
    progress->setMidpoint(ccp(0,0));


   //设置百分比(显示进度条的50%)
    progress->setPercentage(50);

    return true;
}


执行结果:



ProgressTimer实现旋转效果的进度条

程序代码:

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    //初始化父类
    CCLayer::init();

    //得到窗口的大小
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //设置坐标
    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);

    //创建精灵
    CCSprite* sprite = CCSprite::create("labelatlasimg.png");
   
    //用精灵创建进度条
    CCProgressTimer* progress = CCProgressTimer::create(sprite);
    addChild(progress);

    //设置进度条的位置
    progress->setPosition(center);


    //设置progress的ID为100
    progress->setTag(100);

    //定义一个定时器
    schedule(schedule_selector(ProgressTimer::scheduleFunc), 0.5f);

    return true;
}

void ProgressTimer::scheduleFunc(float dt)
{
    //通过进度条的ID得到进度条
    CCProgressTimer* progress = (CCProgressTimer*)getChildByTag(100);
	
    progress->setPercentage(progress->getPercentage() + 1);
	
    if (progress->getPercentage() >= 100)
	{
		unscheduleAllSelectors();
	}
}

执行结果:


ProgressTimer实现进度条2

程序代码:

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    //初始化父类
    CCLayer::init();

    //得到窗口的大小
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //设置坐标
    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);

    //创建精灵
    CCSprite* sprite = CCSprite::create("labelatlasimg.png");
   
    //用精灵创建进度条
    CCProgressTimer* progress = CCProgressTimer::create(sprite);
    addChild(progress);

    //设置进度条的位置
    progress->setPosition(center);

    //设置进度条的模式
    //kCCProgressTimerTypeBar表示条形模式
    progress->setType(kCCProgressTimerTypeBar);

    //设置进度条变化的方向
    //setMidpoint默认在左边
    //ccp(1,0)表示向右变化
    progress->setBarChangeRate(ccp(1,0));

    //从哪个方向开始变化
    //ccp(0,0)表示从左边开始变化
    progress->setMidpoint(ccp(0,0));

    //设置progress的ID为100
    progress->setTag(100);

    //定义一个定时器
    schedule(schedule_selector(ProgressTimer::scheduleFunc), 0.1f);

    return true;
}

void ProgressTimer::scheduleFunc(float dt)
{
    //通过进度条的ID得到进度条
    CCProgressTimer* progress = (CCProgressTimer*)getChildByTag(100);
	
    progress->setPercentage(progress->getPercentage() + 1);
	
    if (progress->getPercentage() >= 100)
	{
		unscheduleAllSelectors();
	}
}

执行结果:


ProgressTimer实现进度条3

首先在工程目录下的Resource文件夹中添加两张进度条图片

程序代码:

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    //初始化父类
    CCLayer::init();

    //得到窗口的大小
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //设置坐标
    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);
    
    //创建精灵
    CCSprite* bg = CCSprite::create("sliderTrack.png");
	CCSprite* sprite = CCSprite::create("sliderProgress.png");

    //设置精灵的位置
    bg->setPosition(center);
	
    //添加精灵
    addChild(bg);

    //用精灵创建进度条
	CCProgressTimer* progress = CCProgressTimer::create(sprite);
    
    //设置进度条的位置
    progress->setPosition(center);
	
    //添加进度条
	addChild(progress);

    //设置进度条的模式为条形模式
	progress->setType(kCCProgressTimerTypeBar);
	
    //向右变化
    progress->setBarChangeRate(ccp(1, 0));

    //从左边开始变化
	progress->setMidpoint(ccp(0, 0));

	// 设置progress的tag
	progress->setTag(100);

	// 增加一个定时器
	schedule(schedule_selector(ProgressTimer::scheduleFunc), 0.1f);

    return true;
}

void ProgressTimer::scheduleFunc(float dt)
{
    //通过进度条的ID得到进度条
    CCProgressTimer* progress = (CCProgressTimer*)getChildByTag(100);
	
    //设置progress的进度,每调用一次进度加一
    progress->setPercentage(progress->getPercentage() + 1);
	
    //当进度大于或者等于100时
    if (progress->getPercentage() >= 100)
	{
        //终止定时器
		unscheduleAllSelectors();
	}
}

执行结果:


ProgressTimer实现进度条4

程序代码

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    //初始化父类
    CCLayer::init();

    //得到窗口的大小
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //设置坐标
    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);
    
    //创建精灵
    CCSprite* bg = CCSprite::create("sliderTrack.png");
	CCSprite* sprite = CCSprite::create("sliderProgress.png");

    //设置精灵的位置
    bg->setPosition(center);
	
    //添加精灵
    addChild(bg);

    //用精灵创建进度条
	CCProgressTimer* progress = CCProgressTimer::create(sprite);
    
    //设置进度条的位置
    progress->setPosition(center);
	
    //添加进度条
	addChild(progress);

    //设置进度条的模式为条形模式
	progress->setType(kCCProgressTimerTypeBar);
	
    //向右变化
    progress->setBarChangeRate(ccp(1, 0));

	// 设置progress的tag
	progress->setTag(100);

	// 增加一个定时器
	schedule(schedule_selector(ProgressTimer::scheduleFunc), 0.1f);

    return true;
}

void ProgressTimer::scheduleFunc(float dt)
{
    //通过进度条的ID得到进度条
    CCProgressTimer* progress = (CCProgressTimer*)getChildByTag(100);
	
    //设置progress的进度,每调用一次进度加一
    progress->setPercentage(progress->getPercentage() + 1);
	
    //当进度大于或者等于100时
    if (progress->getPercentage() >= 100)
	{
        //终止定时器
		unscheduleAllSelectors();
	}
}

执行结果:


ProgressTimer实现进度条5

程序代码

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    //初始化父类
    CCLayer::init();

    //得到窗口的大小
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //设置坐标
    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);
    
    //创建精灵
    CCSprite* bg = CCSprite::create("sliderTrack.png");
	CCSprite* sprite = CCSprite::create("sliderProgress.png");

    //设置精灵的位置
    bg->setPosition(center);
	
    //添加精灵
    addChild(bg);

    //精灵旋转90度
    bg->setRotation(90);

    //用精灵创建进度条
	CCProgressTimer* progress = CCProgressTimer::create(sprite);
    
    //设置进度条的位置
    progress->setPosition(center);
	
    //添加进度条
	addChild(progress);

    //进度条旋转90度
    progress->setRotation(90);

    //设置进度条的模式为条形模式
	progress->setType(kCCProgressTimerTypeBar);
	
    //向右变化
    progress->setBarChangeRate(ccp(1, 0));

    //从左边开始变化
	progress->setMidpoint(ccp(1, 0));

	// 设置progress的ID
	progress->setTag(100);

	// 增加一个定时器
	schedule(schedule_selector(ProgressTimer::scheduleFunc), 0.1f);

    return true;
}

void ProgressTimer::scheduleFunc(float dt)
{
    //通过进度条的ID得到进度条
    CCProgressTimer* progress = (CCProgressTimer*)getChildByTag(100);
	
    //设置progress的进度,每调用一次进度加一
    progress->setPercentage(progress->getPercentage() + 1);
	
    //当进度大于或者等于100时
    if (progress->getPercentage() >= 100)
	{
        //终止定时器
		unscheduleAllSelectors();
	}
}

执行结果:


ProgressTo实现进度条1

程序代码

#include "ProgressTimer.h"

CCScene* ProgressTimer::scene()
{
    CCScene *scene = CCScene::create();
    
    ProgressTimer *layer = ProgressTimer::create();

    scene->addChild(layer);

    return scene;
}

bool ProgressTimer::init()
{
    CCLayer::init();

    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    CCPoint center = ccp(winSize.width / 2, winSize.height / 2);
    
    CCSprite* bg = CCSprite::create("sliderTrack.png");
	CCSprite* sprite = CCSprite::create("sliderProgress.png");
    
    bg->setPosition(center);
	
    addChild(bg);

    //精灵旋转90度
    bg->setRotation(90);

    //用精灵创建进度条
	CCProgressTimer* progress = CCProgressTimer::create(sprite);
    
    //设置进度条的位置
    progress->setPosition(center);
	
    //添加进度条
	addChild(progress);

    //进度条旋转90度
    progress->setRotation(90);

    //设置进度条的模式为条形模式
	progress->setType(kCCProgressTimerTypeBar);
	
    //向右变化
    progress->setBarChangeRate(ccp(1, 0));

    //从左边开始变化
	progress->setMidpoint(ccp(1, 0));

	// 设置progress的ID
	progress->setTag(100);

    //用于动画显示Progress进度
    //第一个参数:时间
    //第二个参数:进度
    CCProgressTo* progressTo = CCProgressTo::create(2,100);

    //执行进度
    progress->runAction(progressTo);

    return true;
}

执行结果:





Cocos2d-X中的ProgressTimer