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I am going to make a 2D iPad game today, but I do not want to use a game framework. I am more interested in how the framework is created, how to program the physics, and other low level topics.

So, if I'm not using a framework, how do I start? Is the first step to create an OpenGL based app in XCode?

Andrew Johnson
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2 Answers2

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OpenGL would be a place to start, but i would look through the cocos2d source, and see how various things are being done in that.

MCannon
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To program a 2D game from the ground up, especially if you're new to iOS, I don't see any reason to use anything other than the CoreGraphics and CoreAnimation APIs. Any bitmap-based imaging is typically done via OpenGL behind the scenes.

cgull
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