Like a ChipmunkDampedSpring, but operates in a rotational fashion. More...

Instance Methods
(id)	- initWithBodyA:bodyB:restAngle:stiffness:damping:
	Initialize a damped rotary spring between the given bodies. More...

Instance Methods inherited from ChipmunkConstraint
(void)	- preSolve:
	Override this method to update a constraints parameters just before running the physics each step.

(void)	- postSolve:
	Override this method to poll values from a constraint each frame after the physics runs. More...

Class Methods
(ChipmunkDampedRotarySpring *)	+ dampedRotarySpringWithBodyA:bodyB:restAngle:stiffness:damping:
	Create an autoreleased damped rotary spring between the given bodies. More...

Class Methods inherited from ChipmunkConstraint
(ChipmunkConstraint *)	+ constraintFromCPConstraint:
	Get the ChipmunkConstraint object associciated with a cpConstraint pointer. More...

Properties
cpFloat	restAngle
	The angular offset the spring attempts to keep between the two bodies.

cpFloat	stiffness
	The young's modulus of the spring.

cpFloat	damping
	The amount of viscous damping to apply.

Properties inherited from ChipmunkConstraint
cpConstraint *	constraint
	Returns a pointer to the underlying cpConstraint C struct.

ChipmunkBody *	bodyA
	The first ChipmunkBody the constraint controls.

ChipmunkBody *	bodyB
	The second ChipmunkBody the constraint controls.

cpFloat	maxForce
	Maximum force this constraint is allowed to use (defalts to infinity). More...

cpFloat	errorBias
	The rate at which joint error is corrected. More...

cpFloat	maxBias
	Maximum rate (speed) that a joint can be corrected at (defaults to infinity). More...

BOOL	collideBodies
	Whether or not the connected bodies should checked for collisions. More...

cpFloat	impulse
	Get the most recent impulse applied by this constraint.

ChipmunkSpace *	space
	Get the space the body is added to.

id	userData
	An object that this constraint is associated with. More...

Detailed Description

Like a ChipmunkDampedSpring, but operates in a rotational fashion.

Method Documentation

+ (ChipmunkDampedRotarySpring *) dampedRotarySpringWithBodyA:	(ChipmunkBody *)	a
bodyB:	(ChipmunkBody *)	b
restAngle:	(cpFloat)	restAngle
stiffness:	(cpFloat)	stiffness
damping:	(cpFloat)	damping

Create an autoreleased damped rotary spring between the given bodies.

Parameters

restAngle	The angular offset in radians the spring attempts to keep between the two bodies.
stiffness	The young's modulus of the spring.
damping	The amount of viscous damping to apply.

Initialize a damped rotary spring between the given bodies.

Parameters

restAngle	The angular offset in radians the spring attempts to keep between the two bodies.
stiffness	The young's modulus of the spring.
damping	The amount of viscous damping to apply.

The documentation for this class was generated from the following file: