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Chipmunk (software)

Chipmunk2D is a 2-dimensional real-time rigid body physics engine written by Scott Lembcke that is designed to be portable, lightweight, fast, and easy to use. Prior to version 7, two main versions of the library existed. Chipmunk2D Free was written purely in C99, and freely available under the terms of the MIT License. Chipmunk2D Pro was a proprietary upgrade designed for development on mobile devices. It included several high-level subroutines in Objective-C, and floating-point optimizations for the ARM processor. However, after version 7 the project was fully open-sourced. Aside from Objective-C, there are official bindings for Ruby, and third party interfaces exist for Python, Haskell, OCaml, and others. Chipmunk is endorsed by a number of game libraries, including Aerosol, Gosu, and Cocos2d.

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Article summary

Chipmunk2D is a 2-dimensional real-time rigid body physics engine written by Scott Lembcke that is designed to be portable, lightweight, fast, and easy to use. Prior to version 7, two main versions of the library existed. Chipmunk2D Free was written purely in C99, and freely available under the terms of the MIT License. Chipmunk2D Pro was a proprietary upgrade designed for development on mobile devices. It included several high-level subroutines in Objective-C, and floating-point optimizations for the ARM processor. However, after version 7 the project was fully open-sourced. Aside from Objective-C, there are official bindings for Ruby, and third party interfaces exist for Python, Haskell, OCaml, and others. Chipmunk is endorsed by a number of game libraries, including Aerosol, Gosu, and Cocos2d.

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  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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