前端之家收集整理的这篇文章主要介绍了
Cocos2d-3.x_触摸事件(单点触摸和多点触摸),
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<pre class="cpp" name="code">#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__
#include "cocos2d.h"
USING_NS_CC;
class HelloWorld : public cocos2d::Layer
{
public:
static cocos2d::Scene* createScene();
virtual bool init();
CREATE_FUNC(HelloWorld);
private:
LabelTTF *pLabel;
};
#endif // __HELLOWORLD_SCENE_H__
#include "HelloWorldScene.h"
Scene* HelloWorld::createScene()
{
auto scene = Scene::create();
auto layer = HelloWorld::create();
scene->addChild(layer);
return scene;
}
bool HelloWorld::init()
{
if ( !Layer::init() )
{
return false;
}
Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();
pLabel = LabelTTF::create("HelloWorld","fonts/Arial.ttf",30);
pLabel->setPosition(visibleSize.width / 2.0,visibleSize.height / 2.0);
this->addChild(pLabel);
auto listener = EventListenerTouchOneByOne::create();
listener->onTouchBegan = [](Touch *t,Event *e)
{
if (e->getCurrentTarget()->getBoundingBox().containsPoint(t->getLocation()))
{
log("onTouchBegan");
}
// return true; 返回真,可以让触摸回调传递到onTouchMoved和onTouchEnded
// return false; 返回假,不可以让触摸回调传递到onTouchMoved和onTouchEnded
return false;
};
listener->onTouchMoved = [](Touch *t,Event *e)
{
log("onTouchMoved");
};
listener->onTouchEnded = [](Touch *t,Event *e)
{
log("onTouchEnded");
};
Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraPHPriority(listener,pLabel);
return true;
}
#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__
#include "cocos2d.h"
USING_NS_CC;
class HelloWorld : public cocos2d::Layer
{
public:
static cocos2d::Scene* createScene();
virtual bool init();
CREATE_FUNC(HelloWorld);
private:
LabelTTF *pLabel;
};
#endif // __HELLOWORLD_SCENE_H__
#include "HelloWorldScene.h"
Scene* HelloWorld::createScene()
{
auto scene = Scene::create();
auto layer = HelloWorld::create();
scene->addChild(layer);
return scene;
}
bool HelloWorld::init()
{
if ( !Layer::init() )
{
return false;
}
Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();
pLabel = LabelTTF::create("HelloWorld",visibleSize.height / 2.0);
this->addChild(pLabel);
// 开启多点触摸
this->setTouchEnabled(true);
auto listener = EventListenerTouchAllAtOnce::create();
listener->onTouchesBegan = [](std::vector<Touch *> ts,Event *e)
{
log("onTouchesBegan");
};
listener->onTouchesMoved = [](std::vector<Touch *> ts,Event *e)
{
log("touch is moved,touch's count is %d",ts.size());
};
listener->onTouchesEnded = [](std::vector<Touch *> ts,Event *e)
{
log("onTouchesEnded");
};
Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraPHPriority(listener,this);
return true;
}