A ChipmunkShape is the Chipmunk equivalent of Unity's Collider component.
| body | ChipmunkBody that this shape is attached to. |
| friction | Friction value of this shape. |
| elasticity | Elasticity of this shapes |
| isSensor | Indicates if the shape is a sensor. |
| collisionType | String identifier that that is used for collision events. |
| group | String that identifies the group a collision shape is in. |
| layers | A bitmask of which Chipmunk layers a shape is in. |
| surfaceVelocity | The velocity of the surface of a shape separate from its rigid body's velocity. |