ccTouchesMoved is lack


#1

My ccTouchesMoved sometime not respond (get called) as fast as it should be (let say it’s lack). but sometime it worked ok.

I created a sprite and set its position in every ccTouchesMoved (to move it according to touch’s position)
Result: sometime the sprite moved smoothly, but sometime it’s very lackky.

“sometime” = different time that I build and run with the same code.

I have no idea of how is this happen, I also did try a very basic multiTouchTest in samples. but the same problem is there too.

my test device was ipod touch latest gen (Iong screen).
using cocos2dx-2.1.5

Does anyone had the same problem with me, and how did you cope it?
I need your help please.

Here is my code:

header

class CCPhatTouches: public cocos2d::CCLayer {

    cocos2d::CCSprite* _sprite          = NULL;

public:

    virtual bool init();
    virtual ~CCPhatTouches();
    CREATE_FUNC(CCPhatTouches);

    virtual void registerWithTouchDispatcher(void);
    virtual void ccTouchesBegan(cocos2d::CCSet* touches, cocos2d::CCEvent* event);
    virtual void ccTouchesMoved(cocos2d::CCSet* touches, cocos2d::CCEvent* event);
    virtual void ccTouchesEnded(cocos2d::CCSet* touches, cocos2d::CCEvent* event);
    virtual void ccTouchesCancelled(cocos2d::CCSet* touches, cocos2d::CCEvent* event);

};

cpp

#include "CCPhatTouches.h"
USING_NS_CC;

static ccColor3B s_TouchColors[CC_MAX_TOUCHES] = {
    ccYELLOW,
    ccBLUE,
    ccGREEN,
    ccRED,
    ccMAGENTA
};

class TouchPoint : public CCNode
{
public:
    TouchPoint()
    {
        setShaderProgram(CCShaderCache::sharedShaderCache()->programForKey(kCCShader_PositionTextureColor));
    }

    virtual void draw()
    {
        ccDrawColor4B(m_TouchColor.r, m_TouchColor.g, m_TouchColor.b, 255);
        glLineWidth(10);
        ccDrawLine( ccp(0, m_pTouchPoint.y), ccp(getContentSize().width, m_pTouchPoint.y) );
        ccDrawLine( ccp(m_pTouchPoint.x, 0), ccp(m_pTouchPoint.x, getContentSize().height) );
        glLineWidth(1);
        ccPointSize(30);
        ccDrawPoint(m_pTouchPoint);
    }

    void setTouchPos(const CCPoint& pt)
    {
        m_pTouchPoint = pt;
    }

    CCPoint getTouchPos() {
        return m_pTouchPoint;
    }

    void setTouchColor(ccColor3B color)
    {
        m_TouchColor = color;
    }

    static TouchPoint* touchPointWithParent(CCNode* pParent)
    {
        TouchPoint* pRet = new TouchPoint();
        pRet->setContentSize(pParent->getContentSize());
        pRet->setAnchorPoint(ccp(0.0f, 0.0f));
        pRet->autorelease();
        return pRet;
    }

private:
    CCPoint m_pTouchPoint;
    ccColor3B m_TouchColor;
};

static CCDictionary s_dic;

bool CCPhatTouches::init() {

    if (!CCLayer::init()) {
        return false;
    }

    setTouchEnabled(true);

    _sprite = CCSprite::create("HelloWorld.png");
    addChild(_sprite);

    return true;

}

CCPhatTouches::~CCPhatTouches() {

}

void CCPhatTouches::registerWithTouchDispatcher(void) {

    CCDirector::sharedDirector()->getTouchDispatcher()->addStandardDelegate(this, 0);

}

void CCPhatTouches::ccTouchesBegan(CCSet *touches, CCEvent *event) {

    CCSetIterator it = touches->begin();
    for (; it!=touches->end(); it++) {

        CCTouch* touch = (CCTouch*)(*it);
        CCPoint location = touch->getLocation();

        TouchPoint* pTouchPoint = TouchPoint::touchPointWithParent(this);
        pTouchPoint->setTouchPos(location);
        pTouchPoint->setTouchColor(s_TouchColors[touch->getID()]);
        addChild(pTouchPoint);

        s_dic.setObject(pTouchPoint, touch->getID());

        printf("began:%d %f,%f\n", touch->getID(), location.x, location.y);
    }

}

void CCPhatTouches::ccTouchesMoved(CCSet *touches, CCEvent *event) {

    CCSetIterator it = touches->begin();
    for (; it!=touches->end(); it++) {

        CCTouch* touch = (CCTouch*)(*it);
        CCPoint location = touch->getLocation();

        TouchPoint* pTP = (TouchPoint*)s_dic.objectForKey(touch->getID());
        pTP->setTouchPos(location);

        printf("moved:%d %f,%f\n", touch->getID(), location.x, location.y);
    }

    int n = s_dic.count();
    printf("---> %d\n", n);
    switch (n) {

        default:
        case 1: {

            TouchPoint* pTP = (TouchPoint*)s_dic.objectForKey(0);
            if (pTP) {
                _sprite->setPosition(pTP->getTouchPos());
            }

        }break;

        case 2: {

            TouchPoint* pTP1 = (TouchPoint*)s_dic.objectForKey(0);
            TouchPoint* pTP2 = (TouchPoint*)s_dic.objectForKey(1);
            if (pTP1 && pTP2) {
                CCPoint location = (pTP1->getTouchPos()+pTP2->getTouchPos())/2;
                _sprite->setPosition(location);
            }

        }break;

    }

}

void CCPhatTouches::ccTouchesEnded(CCSet *touches, CCEvent *event) {

    CCSetIterator it = touches->begin();
    for (; it!=touches->end(); it++) {

        CCTouch* touch = (CCTouch*)(*it);
        CCPoint location = touch->getLocation();

        TouchPoint* pTP = (TouchPoint*)s_dic.objectForKey(touch->getID());
        removeChild(pTP, true);

        s_dic.removeObjectForKey(touch->getID());

        printf("ended:%d %f,%f\n", touch->getID(), location.x, location.y);
    }

}

void CCPhatTouches::ccTouchesCancelled(CCSet *touches, CCEvent *event) {

    ccTouchesEnded(touches, event);

}

Cheers,


#2

anyone?