OperaterLayer.h
#ifndef _OPERATE_LAYER_
#define _OPERATE_LAYER_
#include "cocos2d.h"
class OperateLayer : public cocos2d::Layer
{
public:
OperateLayer();
~OperateLayer();
virtual bool init();
CREATE_FUNC(OperateLayer);
void onTouchesBegan(const std::vector& touches, cocos2d::Event *unused_event);
void onTouchesMoved(const std::vector& touches, cocos2d::Event *unused_event);
void onTouchesEnded(const std::vector& touches, cocos2d::Event *unused_event);
private:
void showJoystick(cocos2d::Point pos);
void hideJoystick();
void updateJoystick(cocos2d::Point direction, float distance);
cocos2d::Sprite* m_pJoystick;
cocos2d::Sprite* m_pJoystickBg;
};
#endif
```
OperaterLyaer.cpp
void OperateLayer::updateJoystick(Point direction, float distance)
{
Point start = m_pJoystickBg->getPosition();
if (distance < 33)
{
m_pJoystick->setPosition(start + (direction * distance));
}else if (distance>78)
{
m_pJoystick->setPosition(start + (direction * 45));
}else
{
m_pJoystick->setPosition(start + (direction * 33));
}
}
void OperateLayer::onTouchesBegan(const vector& touches, Event *unused_event)
{
Size winSize = Director::getInstance()->getWinSize();
vector::const_iterator touchIter = touches.begin();
while(touchIter != touches.end())
{
Touch *pTouch = (Touch*)(*touchIter);
Point p = pTouch->getLocation();
if(p.x <= winSize.width / 2)
{
this->showJoystick(p);
}else {
}
++ touchIter;
}
}
void OperateLayer::onTouchesMoved(const vector& touches, Event *unused_event)
{
Size winSize = Director::getInstance()->getWinSize();
std::vector::const_iterator touchIter = touches.begin();
Touch *pTouch = (Touch*)(*touchIter);
Point start = pTouch->getStartLocation();
if(start.x > winSize.width / 2)
{
return;
}
Point dest = pTouch->getLocation();
float distance = start.getDistance(dest);
Point direction = (dest-start).normalize(); //这点为什么报错啊！！！！
this->updateJoystick(direction, distance);
}
void OperateLayer::onTouchesEnded(const vector& touches, Event *unused_event)
{
this->hideJoystick();
}
```
为什么Point direction = (dest-start).normalize(); //这点为什么报错啊！！！！
1 IntelliSense: 对象包含与成员函数不兼容的类型限定符
对象类型是: const cocos2d::Vec2 c:\Users\Unity\Desktop\project\PompaDroid\Classes\OperateLayer.cpp 103 20 PompaDroid