AS3开源物理引擎类库：APE
jopen
12年前
APE (Actionscript Physics Engine)是一个免费AS3开源2D物理引擎，可用在Flash和Flex应用中。
CircleParticles
-fixed or non-fixed
-variable mass, elasticity, and surface friction
RectangleParticles
-rotatable
-fixed or non-fixed
-variable mass, elasticity, and surface friction
WheelParticles
-traction and angular velocity
-fixed or non-fixed
-variable mass, elasticity, and surface friction
SpringConstraints
-stiffness
-collidable or non-collidible
-collidable constraints have variable width and scale
Grouping
-Composite class may contain Particles, and Constraints
-Group class may contain Particles, Constraints, and Composites
Collision
-multisampling
-static collision tests