Cocos2d-x常用功能-Cocos2d-x用户交互事件处理：触摸、传感器、物理按键

第三阶段：常用功能3-

--Cocos2d-x常用功能-Cocos2d-x用户交互事件处理：触摸、传感器、物理按键（共6部分）

1.Cocos2d-x单点触摸

Size size = Director::getInstance()->getVisibleSize();


auto label = LabelTTF::create( "Click me" , "Courier" , 30 );
label->setPosition(size.width/ 2 ,size.height/ 2 );
addChild(label);

auto listener = EventListenerTouchOneByOne::create();
listener->onTouchBegan = [](Touch *t,Event *e){

if (e->getCurrentTarget()->getBoundingBox().containsPoint(t->getLocation())) {

log( "onTouchBegan" );
}

return true ;
};

listener->onTouchMoved = [](Touch* t,Event *e){
log( "onTouchMoved" );
};

listener->onTouchEnded = [](Touch *t,27)">"onTouchEnd" );
};

Director::getInstance()->getEventdispatcher()->addEventListenerWithSceneGraPHPriority(listener,label);

2.Cocos2d-x触摸目标判断

//获取当前事件目标也就是label

"onTouchBegan" );
}

3.Cocos2d-x事件传递

onTouchBegan事件 true ;之后才能执行 onTouchMoved、 onTouchEnded

listener->onTouchMoved = [](Touch* t,27)">"onTouchEnd" );
};

4.Cocos2d-x多点触摸

安卓的DNK首先配置在环境变量里面

proj.android--- build_native.py

Size visibleSize = Director::getInstance()->getVisibleSize();

auto listener = EventListenerTouchAllAtOnce::create();

listener->ontouchesBegan = [](std::vector<Touch*> ts,27)">"ontouchesBegan" );
};

listener->ontouchesMoved = [](std::vector<Touch*> ts,27)">"touches moved,and touch count is %ld" ,ts.size());
};

Director::getInstance()->getEventdispatcher()->addEventListenerWithSceneGraPHPriority(listener,this);

5.Cocos2d-x加速度

acceleration 加速度 加速 stamp 标志/ 邮票；印记 double类型 %g

JAVA ADT 里面 右键import 打开proj.android,然后删除依赖项

cocos2d ▸ cocos ▸ platform ▸ android ▸ java ▸ src 放在JAVA ADT 的 src 里面 按下F11 选中Android Aplication

//加速度传感器默认处于关闭状态，需要打开

Device::setAccelerometerEnabled( true );

Director::getInstance()->getEventdispatcher()->addEventListenerWithSceneGraPHPriority(EventListeneracceleration::create([](acceleration *a,Event *e){

log( "x:%g,y:%g,z:%g" ,a->x,a->y,a->z);

}),162)"> this);

6.Cocos2d-x物理按键交互

auto listener = EventListenerKeyboard::create();
listener->onkeyreleased = [](EventKeyboard::KeyCode code,27)">"key code : %d" ,code);

switch (code) {
case EventKeyboard::KeyCode::KEY_BACKSPACE:
Director::getInstance()->end();
break ;

default :
break ;
}
};

Director::getInstance()->getEventdispatcher()->addEventListenerWithSceneGraPHPriority(listener,162)">this);