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Box2DX is a C# port of Box2D - Erin Catto's 2D Physics Engine. You can find original C++ version on www.box2d.org

Collision:

  • Continuous collision detection.
  • Contact callbacks: add, persist, remove.
  • Convex polyons and circles.
  • Multiple shapes per body.
  • One-shot contact manifolds.
  • Incremental sweep-and-prune broadphase.
  • Efficient pair management.
  • Fast broadphase AABB queries.
  • Collision groups and categories.

Physics:

  • Continuous physics with time of impact island 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, and mouse joints.
  • Joint limits, motors, and friction.
  • Momentum decoupled position correction.
  • Fairly accurate reaction forces/impulses.

System:

  • Centralized tuning parameters.
  • Pure .NET 2.0 library.

Documentation: -

Testbed:

  • OpenGL with Tao.Freeglut
  • Graphical user interface
  • Easily switch between tests using GUI
  • Test framework for easily adding new tests
  • Mouse picking and the bomb!
  • VCS9 project files

The Library is free for commercial use and open source under the ZLib License.

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