[置顶] cocos2d实现类似CCMenu菜单类控件,在CCScrollView滚动， lua脚本控件

在CCScrollView中添加ccmenu实现滑动效果是不可能的，因为ccmenu的触发事件是你在touchBegan就全部捕获掉了，如果你想滑动CCScrollView取消选中这个菜单是无法实现的，.所以我们应该自己编写一个模拟ccmenu菜单的控件 ，在按下按钮后，如果不移动按钮的话，就触发触摸事件，移动的话就取消触摸事件，实现按钮在CCScrollView中的滚动效果。。。

开发人员:Jason's.Alex QQ:531401335

csdn博客:http://blog.csdn.net/RuShrooM

//
//  CCButtonSptite.h
//  CCSpriteButton
//
//  Created by jasonsalex on 13-8-6.
//
//

#ifndef __CCSpriteButton__CCButtonSptite__
#define __CCSpriteButton__CCButtonSptite__

#include "cocos2d.h"

#define TOUCH_SENSITIVITY  20 //触摸灵敏度

using namespace cocos2d;

class ButtonSprite:public CCSprite,public CCTouchDelegate
{
public:
ButtonSprite();
virtual bool init(CCSpriteFrame *selFile,CCSpriteFrame *disFile);

static ButtonSprite *create(const char *selFile,const char *disFile );
static ButtonSprite *createWithSpriteFrame(CCSpriteFrame* selFrame,CCSpriteFrame *disFrame);
static ButtonSprite *createWithSpriteFrameName(const char *selFile,const char * disFile);
virtual ~ButtonSprite();

virtual void onEnter();
virtual void onExit();
virtual bool ccTouchBegan(CCTouch* touch, CCEvent* event);
virtual void ccTouchMoved(CCTouch* touch, CCEvent* event);
virtual void ccTouchEnded(CCTouch* touch, CCEvent* event);

void registerScriptTapHandler(int nHandler);
void unregisterScriptTapHandler(void);

private:
CCSprite *selSprite;  //选择的精灵
CCSprite *disSprite;//不选择的精灵

int m_nScriptTapHandler;//脚本函数句柄
bool isEmitTouchEvent; //是否发射触摸事件
CCPoint startTouchPoint; //开始的触摸坐标
};

#endif /* defined(__CCSpriteButton__CCButtonSptite__) */

//
//  CCButtonSptite.cpp
//  CCSpriteButton
//
//  Created by jasonsalex on 13-8-6.
//
//

#include "ButtonSprite.h"
ButtonSprite *  ButtonSprite::create(const char *selFile,const char *disFile )
{

ButtonSprite *pRet=new ButtonSprite();

if(pRet && pRet->init(CCSprite::create(selFile)->displayFrame(),CCSprite::create(disFile)->displayFrame()))
{
pRet->autorelease();
return pRet;
}

CC_SAFE_DELETE(pRet);
return NULL;
}

ButtonSprite * ButtonSprite::createWithSpriteFrame(CCSpriteFrame* selFrame,CCSpriteFrame *disFrame)
{

ButtonSprite *pRet=new ButtonSprite();

if(pRet && pRet->init(selFrame,disFrame))
{
pRet->autorelease();
return pRet;
}

CC_SAFE_DELETE(pRet);
return NULL;

}

ButtonSprite * ButtonSprite::createWithSpriteFrameName(const char *selFile,const char * disFile)
{

ButtonSprite *pRet=new ButtonSprite();

CCSpriteFrame *selFrame=CCSpriteFrameCache::sharedSpriteFrameCache()->spriteFrameByName(selFile);
CCSpriteFrame *disFrame=CCSpriteFrameCache::sharedSpriteFrameCache()->spriteFrameByName(disFile);

if(pRet && pRet->init(selFrame,disFrame))
{
pRet->autorelease();
return pRet;
}

CC_SAFE_DELETE(pRet);
return NULL;

}

bool ButtonSprite::init(CCSpriteFrame* selFrame,CCSpriteFrame *disFrame)
{
this->disSprite=CCSprite::createWithSpriteFrame(disFrame);
this->selSprite=CCSprite::createWithSpriteFrame(selFrame);
this->selSprite->retain();
this->disSprite->retain();

if(!this->initWithSpriteFrame(selFrame))
return false;

return true;
}

ButtonSprite::ButtonSprite():m_nScriptTapHandler(0),isEmitTouchEvent(false)
{

}

ButtonSprite::~ButtonSprite()
{
CC_SAFE_DELETE(this->disSprite);
CC_SAFE_DELETE(this->selSprite);
}

void ButtonSprite::onEnter()
{
CCDirector* pDirector = CCDirector::sharedDirector();
pDirector->getTouchDispatcher()->addTargetedDelegate(this, 0, false);
}

void ButtonSprite::onExit()
{
CCDirector* pDirector = CCDirector::sharedDirector();
pDirector->getTouchDispatcher()->removeDelegate(this);

}

bool ButtonSprite::ccTouchBegan(CCTouch* touch, CCEvent* event)
{
this->startTouchPoint = convertToNodeSpace(touch->getLocation());

this->isEmitTouchEvent= this->getTextureRect().containsPoint(this->startTouchPoint);
if(isEmitTouchEvent)
{                   //如果选择了就显示禁用图像
this->setDisplayFrame(disSprite->displayFrame());
return true;
}else
{
return false;
}
}

void ButtonSprite::ccTouchMoved(CCTouch* touch, CCEvent* event)
{

float distance=this->startTouchPoint.getDistance(convertToNodeSpace(touch->getLocation()));

if(abs(distance)<TOUCH_SENSITIVITY)  //判断是否超过了移动范围
{
this->isEmitTouchEvent=true;
}else
{
this->isEmitTouchEvent=false;
}

}

void ButtonSprite::ccTouchEnded(CCTouch* touch, CCEvent* event)
{
if(this->isEmitTouchEvent)
{
CCScriptEngineManager::sharedManager()->getScriptEngine()->executeEvent(this->m_nScriptTapHandler,"end");
}

this->setDisplayFrame(selSprite->displayFrame()); //恢复图像
}

void ButtonSprite::registerScriptTapHandler(int nHandler)
{
unregisterScriptTapHandler();
m_nScriptTapHandler = nHandler;
}

void ButtonSprite::unregisterScriptTapHandler(void)
{
if (m_nScriptTapHandler)
{
CCScriptEngineManager::sharedManager()->getScriptEngine()->removeScriptHandler(m_nScriptTapHandler);
m_nScriptTapHandler = 0;
}
}