
What is it all about?
Box2D is a feature rich 2D rigid body physics engine, written in C++ by Erin Catto. It has been used in many games, including Crayon Physics Deluxe, winner of the 2008 Independant Game Festival Grand Prize.
Key Features
* Continuous collision detection, Contact callbacks: begin, end, pre-solve, post-solve, Convex polyons and circles. Multiple shapes per body, One-shot contact manifolds, Dynamic tree broadphase, * Efficient pair management, Fast broadphase AABB queries, Collision groups and categories, Continuous physics with time of impact solver, Persistent body-joint-contact graph * Island solution and sleep management, Contact, friction, and restitution * Stable stacking with a linear-time solver, Revolute, prismatic, distance, pulley, gear, mouse joint, and other joint types * Joint limits, motors, and friction, Momentum decoupled position correction, Fairly accurate reaction forces/impulses * Small block and stack allocators * Centralized tuning parameters * Highly portable C++ with no use of STL containers
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