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POAccess the Main Scene / Layer from a class
 

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  1. POAccess the Main Scene / Layer from a class
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    <p>I have 3 different classes <code>Tree</code>, <code>Fruit</code>, and <code>Basket</code>. Each of them have their own <code>CCSprite</code> member that I access through <code>getSprite( )</code> ( each class has its own <code>getSprite( )</code> ). Also, each class has a <code>draw( )</code> method which sets the <code>CCSprite</code>'s texture, position, and other <code>CCSprite</code> related stuff. When I make an instance of these classes, I always need to <code>addChild( )</code> each of these sprites in the main layer. Nothing's actually wrong with it but I want it so that each <code>draw( )</code> method would be the one handling the <code>addChild( )</code> method to the main layer.</p> <p>My code is like this:</p> <pre><code>// Tree.cpp #include "Tree.h" #include "cocos2d.h" using namespace cocos2d; Tree::Tree( ) { draw( ); } CCSprite * Tree:getSprite( ) { return m_TreeSprite; } void Tree::draw( ) { m_TreeSprite = CCSprite::create( "tree.png" ); m_TreeSprite -&gt; setPosition ( 100, 100 ); } /* * The other classes have similar structure. Will take a long long post if I write them all. */ // MainLayer.cpp void MainLayer::drawScreenObjects( ) { m_Tree = Tree( ); this -&gt; addChild( m_Tree.getSprite( ) ); m_Basket = Basket( ); this -&gt; addChild( m_Basket.getSprite( ) ); } </code></pre> <p>I want it so that the <code>draw( )</code> method could look similar to this:</p> <pre><code>void Tree::draw( ) { m_TreeSprite = CCSprite::create( "tree.png" ); m_TreeSprite -&gt; setPosition( 100, 100 ); MainLayer -&gt; addChild( m_TreeSprite ); } </code></pre> <p>Solutions I am thinking of are</p> <ol> <li>Passing references to the <code>MainLayer</code> to every class and have a member variable hold that reference.</li> <li>Making all classes inherit from CCNode so that they can have children of their own.</li> </ol> <p>Any other possible solutions? I just feel my current setup is dirty and unstable. Thanks in advance.</p>
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    1. COmaybe Tree::drawOnParent(CCNode* parent){ parent->addChild(m_TreeSprite);} ?
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    2. CO@m.ding It might work but I'm calling `draw( )` from the class itself ( In `Tree`'s constructor ). Using that, I must pass a reference of the `MainLayer` to the class. I want these classes to do every bit of setting up by themselves when I create an instance, including the adding of `CCSprite`s in the `MainLayer`.
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    3. COit is a bit long so I post it as an answer.
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      1. POAccess the Main Scene / Layer from a class
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