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Chipmunk

Chipmunk is a fast 2D rigid body physics library written in C. Supports fast circle, segment, and convex polygon collisions.

# Designed for 2D video games.
# Circle, convex polygon, and line segment 
collision primitives.
# Multiple collision primitives can be attached 
to the same rigid body.
# Fast collision detection by using a spatial hash 
for the broad phase.
# Extremely fast impulse solving by utilizing Erin 
Catto’s contact persistence algorithm.
# Support for collision callbacks based on object 
types.
# Impulses applied to contact points can be 
retrieved after the impulse solver has finished.
# Several kinds of joints available.
# C99 implementation, no external dependencies.
# Ruby extension available.
# Simple, read the documentation.

   
Last updated 6 Feb, 2009