Cocos2d-x 中使用多线程

原文章在http://blog.csdn.net/huutu/article/details/9889447

一直以为Cocos2d-x中只有事件队列，只有一个主线程。。。

首先设置头文件

 E:\Cocos2d-X\cocos2d-2.1rc0-x-2.1.2\cocos2dx\platform\third_party\win32\pthread

然后添加Lib

 pthreadVCE2.lib

相关的函数：

 pthread_mutex_init(&mutex,NULL);

理解为初始化互斥锁吧。。

 pthread_create(&pidgo,NULL,thread_go,0);

创建一个线程，第一个参数是线程ID，第二个描述为空，第三个是线程函数，在这个函数里写需要在线程里执行的事件，第四个是传递参数给函数。

 pthread_mutex_lock(&mutex);

在一个线程中操作资源的时候就先把资源锁起来，以免其他线程使用。

 pthread_mutex_unlock(&mutex);

线程中使用完毕后就可以把资源释放了。这样别的线程就可以使用资源。

下面是源代码：

HelloWorldScene.h

 #pragma once

 #include "cocos2d.h"

 #include "Box2D/Box2D.h"

 #include "SimpleAudioEngine.h"

 #include "pthread.h"

 #include<string>

 class HelloWorld : public cocos2d::CCLayer
 {
 public:
     // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
     virtual bool init();

     // there's no 'id' in cpp, so we recommand to return the exactly class pointer
     static cocos2d::CCScene* scene();

     // a selector callback
     void menuCloseCallback(CCObject* pSender);

     // implement the "static node()" method manually
     CREATE_FUNC(HelloWorld);

     //Create two function and two tag of thread
     pthread_t pidrun,pidgo;
     static void* thread_run(void *r);
     static void* thread_go(void* r);

 };


 class Student
 {
 public :
     Student(void){};
     Student(std::string name,int age,std::string sex)
     {
         this->m_age=age;
         this->m_name=name;
         this->m_sex=sex;
     }
     ~Student()
     {
         cocos2d::CCLog("delete data");
     }

     std::string m_name;
     std::string m_sex;
     int m_age;
 };

HelloWorldScene.cpp

 #include "HelloWorldScene.h"

 #include<windows.h>


 using namespace cocos2d;

 static int ticket=100;
 static pthread_mutex_t mutex;

 CCScene* HelloWorld::scene()
 {
     CCScene * scene = NULL;
     do
     {
         // 'scene' is an autorelease object
         scene = CCScene::create();
         CC_BREAK_IF(! scene);

         // 'layer' is an autorelease object
         HelloWorld *layer = HelloWorld::create();
         CC_BREAK_IF(! layer);

         // add layer as a child to scene
         scene->addChild(layer);
     } while (0);

     // return the scene
     return scene;
 }

 // on "init" you need to initialize your instance
 bool HelloWorld::init()
 {
     bool bRet = false;
     do
     {
         //////////////////////////////////////////////////////////////////////////
         // super init first
         //////////////////////////////////////////////////////////////////////////

         CC_BREAK_IF(! CCLayer::init());

         //////////////////////////////////////////////////////////////////////////
         // add your codes below...
         //////////////////////////////////////////////////////////////////////////

         // 1. Add a menu item with "X" image, which is clicked to quit the program.

         // Create a "close" menu item with close icon, it's an auto release object.
         CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
             "CloseNormal.png",
             "CloseSelected.png",
             this,
             menu_selector(HelloWorld::menuCloseCallback));
         CC_BREAK_IF(! pCloseItem);

         // Place the menu item bottom-right conner.
         pCloseItem->setPosition(ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20));

         // Create a menu with the "close" menu item, it's an auto release object.
         CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
         pMenu->setPosition(CCPointZero);
         CC_BREAK_IF(! pMenu);

         // Add the menu to HelloWorld layer as a child layer.
         this->addChild(pMenu, 1);

         // 2. Add a label shows "Hello World".

         // Create a label and initialize with string "Hello World".
         CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Arial", 24);
         CC_BREAK_IF(! pLabel);

         // Get window size and place the label upper.
         CCSize size = CCDirector::sharedDirector()->getWinSize();
         pLabel->setPosition(ccp(size.width / 2, size.height - 50));

         // Add the label to HelloWorld layer as a child layer.
         this->addChild(pLabel, 1);

         // 3. Add add a splash screen, show the cocos2d splash image.
         CCSprite* pSprite = CCSprite::create("HelloWorld.png");
         CC_BREAK_IF(! pSprite);

         // Place the sprite on the center of the screen
         pSprite->setPosition(ccp(size.width/2, size.height/2));

         // Add the sprite to HelloWorld layer as a child layer.
         this->addChild(pSprite, 0);

         bRet = true;
     } while (0);

     return bRet;
 }

 void HelloWorld::menuCloseCallback(CCObject* pSender)
 {
     // "close" menu item clicked
     //CCDirector::sharedDirector()->end();

     Student *temp=new Student(std::string("ThisisGame"),22,std::string("Boy"));
     pthread_mutex_init(&mutex,NULL);
     pthread_create(&pidrun,NULL,thread_run,temp);
     pthread_create(&pidgo,NULL,thread_go,0);
 }


 void* HelloWorld::thread_run(void* r)
 {
     Student* s=(Student*)(r);
     CCLog("Student age=%d,name=%s,sex=%s",s->m_age,s->m_name.c_str(),s->m_sex.c_str());
     //delete s;
     while (true)
     {
         pthread_mutex_lock(&mutex);
         if(ticket>0)
         {
             CCLog("thread run sell %d",ticket);
             ticket--;
             pthread_mutex_unlock(&mutex);
         }
         else
         {
             pthread_mutex_unlock(&mutex);
             return NULL;
         }
 #ifdef WIN32
         Sleep(1000);
 #else
         Usleep(1);
 #endif
     }
     return NULL;
 }


 void* HelloWorld::thread_go(void* r)
 {
     while (true)
     {
         pthread_mutex_lock(&mutex);
         if(ticket>0)
         {
             CCLog("thread go sell %d",ticket);
             ticket--;
             pthread_mutex_unlock(&mutex);
         }
         else
         {
             pthread_mutex_unlock(&mutex);
             return NULL;
         }
 #ifdef WIN32
         Sleep(1000);
 #else
         Usleep(1);
 #endif
     }
     return NULL;
 }

程序运行结果：

然后是工程打包：

 http://download.csdn.net/detail/cp790621656/5905699