How to Zoom In on a Cocos2D Node

On May 17, 2012, in cocos2d, idevblogaday, by Steffen Itterheim

Time to add another project to my github repository. This time I’m answering the frequently asked question (in some form or another) how to zoom in on a particular node. For example zooming in on the player when he dies.

That’s not as trivial as it sounds, but you can make it easy if you follow some guidelines.

First, you want to put all nodes that should be affected by the zoom in the same layer. Then you should avoid changing the position or anchorpoint of the layer – if you still want to change the position of the layer I suggest to add this layer into another, toplevel layer and then only change the position of the toplevel layer. Use the cocos2d node hierarchy to your advantage. And don’t use the CCCamera.

The behavior of this example project is best observed with your own eyes. You can get the ZoomInOnMe project on github.

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