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POCocos2d-x creating an object based upon CCLayerColor
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copied!<p>Cocos2d-x 2.1rc0 OS X 10.8, XCode 4.6.2</p> <p>Playing around with the HellowWorld with Box2D example to gain some concepts.</p> <p>Creating an class that is an extension of CCLayerColor. </p> <p>Previously, before I created a separate object I was doing:</p> <pre><code>// background CCLayerColor *background = CCLayerColor::create(cGhostWhite); background->setContentSize(CCSizeMake(1024, 768)); background->setPosition(0,0); this->addChild(background,0); </code></pre> <p>This worked. After trying to create my own object I am getting and error:</p> <pre><code>error: no viable conversion from 'PlainBackgroundLayer::PlainBackgroundLayer' to 'PlainBackgroundLayer::PlainBackgroundLayer *' </code></pre> <p>Here is what I am doing:</p> <p>PlainBackgroundLayer.h:</p> <pre><code>#ifndef __PLAINBACKGROUNDLAYER_H__ #define __PLAINBACKGROUNDLAYER_H__ #include "cocos2d.h" #include "Box2D.h" class PlainBackgroundLayer : public cocos2d::CCLayerColor { public: PlainBackgroundLayer(cocos2d::ccColor4B inColor); ~PlainBackgroundLayer(); virtual void draw(); private: cocos2d::ccColor4B backgroundColor; cocos2d::CCSize layerSize; cocos2d::CCLayerColor *background; }; #endif // __PLAINBACKGROUNDLAYER_H__ </code></pre> <p>PlainBackgroundLayer.cpp:</p> <pre><code>#include "PlainBackgroundLayer.h" using namespace cocos2d; PlainBackgroundLayer::PlainBackgroundLayer(cocos2d::ccColor4B inColor) { layerSize = CCDirector::sharedDirector()->getWinSize(); backgroundColor = inColor; background = CCLayerColor::create(backgroundColor); background->setContentSize(CCSizeMake(1024, 768)); background->setPosition(0,0); } PlainBackgroundLayer::~PlainBackgroundLayer() { delete background; } </code></pre> <p>and instantiating like:</p> <pre><code> PlainBackgroundLayer::PlainBackgroundLayer *background = PlainBackgroundLayer::PlainBackgroundLayer(cGhostWhite); this->addChild(background,0); </code></pre> <p>What am I doing wrong? I feel like I am doing this correctly.</p> <p>UPDATE 1: now I am doing:</p> <p>in .cpp:</p> <pre><code>static PlainBackgroundLayer* PlainBackgroundLayer::create(cocos2d::ccColor3B inColor) { // create functions should return autoreleased objects. PlainBackgroundLayer* layer = new PlainBackgroundLayer(); layer->setColor(inColor); return layer->autorelease(); } </code></pre> <p>in .h:</p> <pre><code>class PlainBackgroundLayer : public cocos2d::CCLayerColor { public: static PlainBackgroundLayer* create(cocos2d::ccColor3B &var); virtual void draw(); }; </code></pre> <p>and I am getting errors in the .cpp:</p> <pre><code>`Out-of-line definition of 'create' does not match any declaration in 'PlainBackgroundLayer'` `'static' can only be specified inside the class definition` `Cannot initialize return object of type 'PlainBackgroundLayer *' with an rvalue of type 'cocos2d::CCObject *'` </code></pre>

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