Farseer Physics Engine - 基于Box2D的物理引擎

Farseer物理引擎是一个具有真实的物理反应的碰撞检测系统。这意味着你可以利用这个引擎和相关工具容易创建一个游戏或机器人仿真。从一个简单游戏到复杂的机器人仿真，都可以利用Farseer物理引擎实现。
Farseer物理引擎是基于Box2D的，这意味着拥有一些与Box2D共有的功能。其它特性如下：

• Continuous collision detection (with time of impact solver)
• Contact callbacks: begin, end, pre-solve, post-solve
• Convex and concave polyons and circles.
• Multiple shapes per body
• Dynamic tree and quad tree broadphase
• Fast broadphase AABB queries and raycasts
• Collision groups and categories
• Sleep management
• Friction and restitution
• Stable stacking with a linear-time solver
• Revolute, prismatic, distance, pulley, gear, mouse joint, and other joint types
• Joint limits and joint motors
• Controllers (gravity, force generators)
• Tools to decompose concave polygons, find convex hulls and boolean operations
• Factories to simplify the creation of bodies

项目主页：http://www.open-open.com/lib/view/home/1355468087169