AlvinPhysics is an Objective-C wrapper for Chipmunk2D that uses UIKit and mimics the SpriteKit architecture.
Well, there are a few reasons why I needed to create AlvinPhysics. First, SpriteKit is available in iOS 7 or later. So, in order to lower the Deployment Target we have to say goodbye to SpriteKit. Second, the first result in Google for SKShapeNode was "SKShapeNode, you are dead to me" for quite some time. Now this is the second result :-). Even after the release of iOS 8 I was not satisfied with the SpriteKit workflow. And finally, it is not comfortable to mix SpriteKit and UIKit elements.
So, if you need to move away from SpriteKit and want to make a simple application based on UIKit, you should consider AlvinPhysics.
AlvinPhysics is far from a complete library. It does not expose the full Chipmunk2D functionality. It does not implement the full SpriteKit functionality. It is more like a good base to get you started with Chipmunk2D + UIKit.
I will commit any future improvements to the code. If there is interest in the project I will do my best to provide support and incorporate updates.
I saw somewhere in StackOverflow that it is not a good idea to use UIKit for a game if you are going to draw more than a couple dozen objects. I have not made exact measurements, but I am quite satisfied with the results in my game Order: A Fun Brain Game.
If you have any concrete results I would be happy to publish them.
Just get this repo and modify the demo project.
- Get Chipmunk2D and build the C and Objective-C static libraries as described in the documentation. Alternatively, you can use the libraries of Chipmunk2D 7.0.0 that I have built and that are present in this repo.
- Add the AlvinPhysics source code to your project.
- Build and run.
Copyright (c) 2014 Teodor Kostov
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