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POHow do I move a specific child in CCScrollLayer?
 

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  1. POHow do I move a specific child in CCScrollLayer?
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    <p>I am working to convert my CCScrollLayer.cpp code into more of a CCPicker code. In CCScrollLayer, I've defined a baselayer (CCColorLayer) to hold all of the menu objects. I also have a border that holds the ScrollLayer (using glScissor) called "overlay" that I want to be completely static.</p> <h2>In Objective C:</h2> <pre><code>... self.baseLayer = [CCLayerColor layerWithColor:(ccColor4B){150,150,150,0} width:s.width height:imgSize.height * numPages]; for (int i=0; i &lt; [arrayPages count]; i++) { CCNode* n = arrayPages[i]; n.position = ccp(s.width/2, s.height/2 + i * (imgSize.height + padding)); [baselayer addChild:n]; } baseLayer.position = ccp(-s.width/2, -s.height/2 - s.height * currentPage); [self addChild:baselayer]; ... - (void)ccTouchMoved:(UITouch *)touch withEvent:(UIEvent *)event { CGPoint n = [self convertTouchToNodeSpace:touch]; baselayer.position = ccp(touchStartedbaseLayerPosition.x, touchStartedbaseLayerPosition.y + n.y - touchStartedPoint.y); } </code></pre> <h2>In C++</h2> <pre><code>... overlay=new CCSprite(); overlay-&gt;initWithFile("overlay.png"); overlay-&gt;setPosition(ccp(300,300)); overlay-&gt;autorelease(); CCLayerColor* baselayer = new CCLayerColor(); baselayer-&gt;initWithColor(ccc4(255, 255, 255,255)); baselayer-&gt;setOpacity(255); baselayer-&gt;setContentSize(CCSizeMake(s.width/10, (layers-&gt;count()*scrollWidth))); baselayer-&gt;setPosition(s.width*.41,300); baselayer-&gt;autorelease(); // Loop through the array and add the screens unsigned int i; for (i=0; i&lt;layers-&gt;count(); i++) { CCLayer* l = static_cast&lt;CCLayer*&gt;(layers-&gt;objectAtIndex(i)); l-&gt;setAnchorPoint(ccp(0,0)); l-&gt;setPosition(ccp(s.width/40,(i*scrollWidth))); baselayer-&gt;addChild(l); } this-&gt;addChild(baselayer,1); this-&gt;addChild(overlay,1); ... void CCScrollLayer::ccTouchMoved(CCTouch *touch, CCEvent *withEvent) { CCPoint touchPoint = touch-&gt;getLocation(); // Get the touch position touchPoint = this-&gt;getParent()-&gt;convertToNodeSpace(touchPoint); baselayer-&gt;setPosition(ccp(0,(-(currentScreen-1)*scrollWidth)+(touchPoint.y-startSwipe))); } </code></pre> <p>I'm not sure what I'm doing wrong, but as soon as I try to start scrolling, I get a fatal error in the touchdispatcher</p> <blockquote> <pre><code> case CCTOUCHMOVED: pHandler-&gt;getDelegate()-&gt;ccTouchMoved(pTouch, pEvent); </code></pre> </blockquote> <p>I'm guessing I'm missing something simple here. Can you point me in the write direction?</p>
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    1. COIt seems like the problem isn't here. You might register the touch dispatcher but forgot to unregister somewhere, or you forgot to define the ccTouchMoved function in .h file.
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      1. POHow do I move a specific child in CCScrollLayer?
      1. USm.ding
    2. COI definitely have ccTouchMoved in my h file. I am registering my touch dispatch onEnter() with CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, 0, false); Is that the correct callout for it to move the baselayer only?
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      1. POHow do I move a specific child in CCScrollLayer?
      1. USPWiggin
    3. COtry to change the last value to true to see what is happening?
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      1. POHow do I move a specific child in CCScrollLayer?
      1. USm.ding
 

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