使用cocoswidget库

class

WelcomeScene
:

public

cocos2d::CCLayer

{

public

:

。。。。。

。。。。。

virtual

bool

init();

void

onTouched(CCObject*
pSender,

float

fx,

float

fy);

};

bool

WelcomeScene::init()

{

if

(
!CCLayer::init() )

{

return

false

;

}

CWidgetWindow*
m_pWindow = CWidgetWindow::create();

m_pWindow->setMultiTouchEnabled(

true

);

this

->addChild(m_pWindow);

CControlView*
pView = CControlView::create(

"control_baseboard.png"

,

"control_joystick.png"

);

pView->setPosition(CCPoint(100,
100));

pView->setAnchorPoint(CCPointZero);

pView->setRadius(pView->getContentSize().width
/ 2);

//直接设置即可，原作者没有透漏作用

pView->setOnControlListener(

this

,
ccw_control_selector(WelcomeScene::onTouched));

//回调函数

pView->setOpacity(200);

//设置透明度

m_pWindow->addChild(pView);

return

true

;

}

void

WelcomeScene::onTouched(CCObject*
pSender,

float

fx,

float

fy)

{

CCLOG(

"x
= %f  y = %f"

,
fx,fy);

}

#ifndef
__JOYSTICK_H__

#define
__JOYSTICK_H__

#include
"cocos2d.h"

class

HRocker
:

public

cocos2d::CCLayer
{

public

:

//初始化
aPoint是摇杆中心 aRadius是摇杆半径 aJsSprite是摇杆控制点 aJsBg是摇杆背景

static

HRocker*
HRockerWithCenter(cocos2d::CCPoint aPoint ,

float

aRadius
,cocos2d::CCSprite* aJsSprite,cocos2d::CCSprite* aJsBg,

bool

_isFollowRole);

//启动摇杆

void

Active();

//解除摇杆

void

Inactive();

cocos2d::CCPoint
getDirection();

private

:

HRocker
* initWithCenter(cocos2d::CCPoint aPoint ,

float

aRadius
,cocos2d::CCSprite* aJsSprite,cocos2d::CCSprite* aJsBg,

bool

_isFollowRole);

cocos2d::CCPoint
centerPoint;

//摇杆中心

cocos2d::CCPoint
currentPoint;

//摇杆当前位置

bool

active;

//是否激活摇杆

float

radius;

//摇杆半径

cocos2d::CCSprite
*jsSprite;

bool

isFollowRole;

//是否跟随用户点击

float

getVelocity();

void

updatePos(

float

dt);

virtual

bool

ccTouchBegan(cocos2d::CCTouch
*pTouch,cocos2d::CCEvent *pEvent);

virtual

void

ccTouchMoved(cocos2d::CCTouch
*pTouch,cocos2d::CCEvent *pEvent);

virtual

void

ccTouchEnded(cocos2d::CCTouch
*pTouch,cocos2d::CCEvent *pEvent);

CREATE_FUNC(HRocker);

};

#endif
// __JOYSTICK_H__

#include
"Joystick.h"

using

namespace

cocos2d;

void

HRocker::updatePos(

float

dt){

jsSprite->setPosition(ccpAdd(jsSprite->getPosition(),ccpMult(ccpSub(currentPoint,
jsSprite->getPosition()),0.5)));

}

//启动摇杆

void

HRocker::Active()

{

if

(!active)
{

active=

true

;

schedule(schedule_selector(HRocker::updatePos));

//添加刷新函数

CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(

this

,
0,

false

);

}

else

{

}

}

//解除摇杆

void

HRocker::Inactive()

{

if

(active)
{

active=

false

;

this

->unschedule(schedule_selector(HRocker::updatePos));

//删除刷新

CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(

this

);

//删除委托

}

else

{

}

}

//摇杆方位

CCPoint
HRocker::getDirection()

{

return

ccpNormalize(ccpSub(centerPoint,
currentPoint));

}

//摇杆力度

float

HRocker::getVelocity()

{

return

ccpDistance(centerPoint,
currentPoint);

}

HRocker*
HRocker:: HRockerWithCenter(CCPoint aPoint ,

float

aRadius
,CCSprite* aJsSprite,CCSprite* aJsBg,

bool

_isFollowRole){

HRocker
*jstick=HRocker::create();

jstick->initWithCenter(aPoint,aRadius,aJsSprite,aJsBg,_isFollowRole);

return

jstick;

}

bool

HRocker::ccTouchBegan(CCTouch*
touch,CCEvent* event)

{

if

(!active)

return

false

;

this

->setVisible(

true

);

CCPoint
touchPoint = touch->getLocationInView();

touchPoint
= CCDirector:: sharedDirector()->convertToGL(touchPoint);

if

(!isFollowRole){

if

(ccpDistance(touchPoint,
centerPoint) > radius){

return

false

;

}

}

currentPoint
= touchPoint;

if

(isFollowRole){

centerPoint=currentPoint;

jsSprite->setPosition(currentPoint);

this

->getChildByTag(88)->setPosition(currentPoint);

}

return

true

;

}

void

HRocker::ccTouchMoved(CCTouch*
touch,CCEvent* event)

{

CCPoint
touchPoint = touch->getLocationInView();

touchPoint
= CCDirector:: sharedDirector()->convertToGL(touchPoint);

if

(ccpDistance(touchPoint,
centerPoint) > radius)

{

currentPoint
=ccpAdd(centerPoint,ccpMult(ccpNormalize(ccpSub(touchPoint,centerPoint)),radius));

}

else

{

currentPoint
= touchPoint;

}

}

void

HRocker::ccTouchEnded(CCTouch*
touch,CCEvent* event)

{

currentPoint
= centerPoint;

if

(isFollowRole){

this

->setVisible(

false

);

}

}

HRocker*
HRocker::initWithCenter(CCPoint aPoint ,

float

aRadius
,CCSprite* aJsSprite,CCSprite* aJsBg,

bool

_isFollowRole){

isFollowRole
=_isFollowRole;

active
=

false

;

radius
= aRadius;

if

(!_isFollowRole){

centerPoint
=aPoint;

}

else

{

centerPoint
=ccp(0,0);

}

currentPoint
= centerPoint;

jsSprite
= aJsSprite;

jsSprite->setPosition(centerPoint);

aJsBg->setPosition(centerPoint);

aJsBg->setTag(88);

this

->addChild(aJsBg);

this

->addChild(jsSprite);

if

(isFollowRole){

this

->setVisible(

false

);

}

this

->Active();

//激活摇杆

return

this

;

}

class

WelcomeScene
:

public

cocos2d::CCLayer

{

public

:

。。。。。

。。。。。

virtual

bool

init();

};

bool

WelcomeScene::init()

{

if

(
!CCLayer::init() )

{

return

false

;

}

CCSprite
*spRocker= CCSprite::create(

"control_joystick.png"

);

CCSprite
*spRockerBG=CCSprite::create(

"control_baseboard.png"

);

HRocker
*rocker=HRocker::HRockerWithCenter(ccp(210.0f,130.0f),50.0f ,spRocker ,spRockerBG,

false

);

this

->addChild(rocker);

CCSprite
*spRocker2 = CCSprite::create(

"control_joystick.png"

);

CCSprite
*spRockerBG2 = CCSprite::create(

"control_baseboard.png"

);

HRocker*
rocker2=HRocker::HRockerWithCenter(ccp(210.0f,130.0f),50.0f ,spRocker2 ,spRockerBG2,

true

);

this

->addChild(rocker2);

return

true

;

}