Chipmunk (software)

{{Short description|Physics engine}}

{{Infobox software

| name = Chipmunk physics engine

| logo =

| screenshot =Image:Chipmunk Physics Logo Smash Demo.png

| caption =

| author = Scott Lembcke

| developer = Howling Moon Software

| latest_release_version = 7.0.3

| latest_release_date = {{start date and age|2019|06|07}}

| latest_preview_version =

| latest_preview_date =

| operating_system = Cross-platform

| programming_language = C, Objective-C

| genre = Physics engine middleware

| license = MIT License, formerly open core

| website = {{URL|http://chipmunk-physics.net/}}

}}

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.[http://www.macnn.com/articles/10/08/16/update.reduced.cpu.hits.for.sleeping.items/ Chipmunk2d update reduced CPU hits for sleeping items] 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.{{cite web |url=https://chipmunk-physics.net/chipmunkPro.php |title=Chipmunk2D Physics Pro |publisher=Howling Moon Software |accessdate=2014-05-26 }} However, after version 7 the project was fully open-sourced.{{cite web |url=http://howlingmoonsoftware.com/wordpress/chipmunk-7-released-pro-tools-open-sourced/ |title=Chipmunk 7 released- Pro tools open sourced |last=Korth |first=Andy |publisher=Howling Moon Software |accessdate=2015-07-21 }}

Aside from Objective-C, there are official bindings for Ruby, and third party interfaces exist for Python,[http://pymunk.org/ Pymunk] Haskell,[http://hackage.haskell.org/package/Hipmunk Hipmunk: A Haskell binding for Chipmunk] OCaml,{{Cite web |url=http://www.linux-nantes.org/~fmonnier/OCaml/Chipmunk/ |title=ocaml-chipmunk |access-date=2009-05-04 |archive-date=2009-01-16 |archive-url=https://web.archive.org/web/20090116110646/http://www.linux-nantes.org/~fmonnier/OCaml/Chipmunk/ |url-status=dead }} and others.[http://chipmunk-physics.net/bindingsAndPorts.php Bindings and Ports] Chipmunk is endorsed by a number of game libraries, including [http://code.google.com/p/aerosol/ Aerosol], Gosu,{{cite web |url=https://github.com/jlnr/gosu/wiki/Ruby-Chipmunk-Integration |title=Gosu Chipmunk Integration |last=Johnson |first=Dirk |website=GitHub |accessdate=2014-05-26 }} and Cocos2d.{{Cite web |url=http://cocos2d.org/ |title=Cocos2d |access-date=2010-10-02 |archive-date=2011-07-25 |archive-url=https://web.archive.org/web/20110725183702/http://cocos2d.org/ |url-status=dead }}