cocos2d-x 开启多触点

朴灿烈づ我的快乐病毒、 2022-05-13 03:10 138阅读 0赞

### 勤奋努力，持之以恒！ ###

添加委托

addStandardDelegate();

开启多点触控

setTouchEnabled();

触屏事件：

1.注册多点触控

virtual void registerWithTouchDispatcher(void);

2.当用户第一次触碰手机屏幕时响应的回调函数

virtual void ccTouchesBegan(CCSet \* touchs,CCEvent \* event);

3.当用户手指在手机屏幕上滑动时响应的回调函数

virtual void ccTouchesMoved(CCSet \* touchs,CCEvent \* event);

4.当用户手指在离开手机屏幕上时响应的回调函数

virtual void ccTouchesEnded(CCSet \* touchs,CCEvent \* event);

5.在AppController.mm的didFinishLaunchingWithOptions方法中添加开启多触点代码。如下：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    
        // Override point for customization after application launch.
    
        // Add the view controller's view to the window and display.
        window = [[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds]];
        EAGLView *__glView = [EAGLView viewWithFrame: [window bounds]
                                         pixelFormat: kEAGLColorFormatRGBA8
                                         depthFormat: GL_DEPTH_COMPONENT16
                                  preserveBackbuffer: NO
                                          sharegroup: nil
                                       multiSampling: NO
                                     numberOfSamples:0 ];
        [__glView setMultipleTouchEnabled:YES]; //添加这句代码
        // Use RootViewController manage EAGLView
        viewController = [[RootViewController alloc] initWithNibName:nil bundle:nil];
        viewController.wantsFullScreenLayout = YES;
        viewController.view = __glView;
    
        // Set RootViewController to window
        if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0)
        {
            // warning: addSubView doesn't work on iOS6
            [window addSubview: viewController.view];
        }
        else
        {
            // use this method on ios6
            [window setRootViewController:viewController];
        }
        
        [window makeKeyAndVisible];
    
        [[UIApplication sharedApplication] setStatusBarHidden: YES];
    
        cocos2d::CCApplication::sharedApplication()->run();
        return YES;
    }

.cpp简单案例：

#include "HelloWorldScene.h"
    #include "SimpleAudioEngine.h"
    
    using namespace cocos2d;
    using namespace CocosDenshion;
    
    CCScene* HelloWorld::scene()
    {
        CCScene *scene = CCScene::create();
        HelloWorld *layer = HelloWorld::create();
        scene->addChild(layer);
        return scene;
    }
    bool HelloWorld::init()
    {
        if ( !CCLayer::init() )
        {
            return false;
        }
        
        //开启多点触控
        this->setTouchEnabled(true);
        
        return true;
    }
    
    //注册多点触控
    void HelloWorld::registerWithTouchDispatcher(void)
    {
        //注册监听
        CCDirector::sharedDirector()->getTouchDispatcher()->addStandardDelegate(this,0);
    }
    void HelloWorld::ccTouchesBegan(CCSet *pTouches, CCEvent *pEvent)
    {
        CCSetIterator it;
        CCTouch* touch;
        
        //这里的it相当于系统分配的数字，
        //pTouches->begin()获取第一个数字
        //pTouches->end()就是最后一位
        for( it = pTouches->begin(); it != pTouches->end(); it++)
        {
            touch = (CCTouch*)(*it);
            
            if(!touch)
                break;
            
            CCLog("Began id == %d",touch->getID());
        }
    }
    void HelloWorld::ccTouchesMoved(CCSet *pTouches, CCEvent *pEvent)
    {
        CCSetIterator it;
        CCTouch* touch;
        
        for( it = pTouches->begin(); it != pTouches->end(); it++)
        {
            touch = (CCTouch*)(*it);
            
            if(!touch)
                break;
            
            CCLog("Moved id == %d",touch->getID());
        }
    }
    void HelloWorld::ccTouchesEnded(CCSet *pTouches, CCEvent *pEvent)
    {
        CCSetIterator it;
        CCTouch* touch;
        
        for( it = pTouches->begin(); it != pTouches->end(); it++)
        {
            touch = (CCTouch*)(*it);
            
            if(!touch)
                break;
            
            CCLog("Ende id == %d",touch->getID());
        }
    }
    
    //写上生命周期函数
    void HelloWorld::onEnter()
    {
        CCLayer::onEnter();
    }
    void HelloWorld::onExit()
    {
        CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(this);
        CCLayer::onExit();
    }