title: Changing size of sprite in cocos2d
body: <p>I have just started using cocos2d and can't solve this one nice by myself.</p>
  
  <p>I want to create a sprite, add another sprite as it child, and then display it all.
  I wan't to change their size also, as my images are to big for my screen so I am scaling my sprites. The problem is that when I scale my parent sprite its scale is applied to child, so simple scaling isn't a solution, I need to change actual texture. I am kinda stack right now. Can anybody help me?</p>
  
  <pre><code>    CCSprite* parent = [CCSprite spriteWithFile: @"some_picture.png"];
      parent.position = ccp(300, 300);
      [parent setSizeX:400 andY:400]; //currently this function added in category just scales sprite
  
      CCSprite* child = [CCSprite spriteWithFile: @"some_other_picture.png"];
      child.position = ccp(200, 200);
      [child setSizeX:200 andY:200]; //currently this function added in category just scales sprite
  
  
      [parent addChild:child];
      [someCCLayer addChild:parent];
  </code></pre>
  
  <p>So I need a solution for this set size function.</p>
  
  <p>Many thanks!</p>