cpBody

Chipmunk's rigid body type. More...

Classes
struct	cpBody
	Chipmunk's rigid body struct. More...

Typedefs
typedef void(*	cpBodyVelocityFunc )(cpBody *body, cpVect gravity, cpFloat damping, cpFloat dt)
	Rigid body velocity update function type.
typedef void(*	cpBodyPositionFunc )(cpBody *body, cpFloat dt)
	Rigid body position update function type.
typedef struct cpComponentNode	cpComponentNode
	Used internally to track information on the collision graph.
typedef void(*	cpBodyShapeIteratorFunc )(cpBody *body, cpShape *shape, void *data)
	Body/shape iterator callback function type.
typedef void(*	cpBodyConstraintIteratorFunc )(cpBody *body, cpConstraint *constraint, void *data)
	Body/constraint iterator callback function type.
typedef void(*	cpBodyArbiterIteratorFunc )(cpBody *body, cpArbiter *arbiter, void *data)
	Body/arbiter iterator callback function type.

Functions
cpBody *	cpBodyAlloc (void)
	Allocate a cpBody.
cpBody *	cpBodyInit (cpBody *body, cpFloat m, cpFloat i)
	Initialize a cpBody.
cpBody *	cpBodyNew (cpFloat m, cpFloat i)
	Allocate and initialize a cpBody.
cpBody *	cpBodyInitStatic (cpBody *body)
	Initialize a static cpBody.
cpBody *	cpBodyNewStatic (void)
	Allocate and initialize a static cpBody.
void	cpBodyDestroy (cpBody *body)
	Destroy a cpBody.
void	cpBodyFree (cpBody *body)
	Destroy and free a cpBody.
void	cpBodySanityCheck (cpBody *body)
	Check that the properties of a body is sane. (Only in debug mode)
void	cpBodyActivate (cpBody *body)
	Wake up a sleeping or idle body.
void	cpBodyActivateStatic (cpBody *body, cpShape *filter)
	Wake up any sleeping or idle bodies touching a static body.
void	cpBodySleep (cpBody *body)
	Force a body to fall asleep immediately.
void	cpBodySleepWithGroup (cpBody *body, cpBody *group)
	Force a body to fall asleep immediately along with other bodies in a group.
static cpBool	cpBodyIsSleeping (const cpBody *body)
	Returns true if the body is sleeping.
static cpBool	cpBodyIsStatic (const cpBody *body)
	Returns true if the body is static.
static cpBool	cpBodyIsRogue (const cpBody *body)
	Returns true if the body has not been added to a space. More...
void	cpBodySetMass (cpBody *body, cpFloat m)
	Set the mass of a body.
void	cpBodySetMoment (cpBody *body, cpFloat i)
	Set the moment of a body.
void	cpBodySetPos (cpBody *body, cpVect pos)
	Set the position of a body.
void	cpBodySetAngle (cpBody *body, cpFloat a)
	Set the angle of a body.
void	cpBodyUpdateVelocity (cpBody *body, cpVect gravity, cpFloat damping, cpFloat dt)
	Default Integration functions.
static cpVect	cpBodyLocal2World (const cpBody *body, const cpVect v)
	Convert body relative/local coordinates to absolute/world coordinates.
static cpVect	cpBodyWorld2Local (const cpBody *body, const cpVect v)
	Convert body absolute/world coordinates to relative/local coordinates.
void	cpBodyResetForces (cpBody *body)
	Set the forces and torque or a body to zero.
void	cpBodyApplyForce (cpBody *body, const cpVect f, const cpVect r)
	Apply an force (in world coordinates) to the body at a point relative to the center of gravity (also in world coordinates).
void	cpBodyApplyImpulse (cpBody *body, const cpVect j, const cpVect r)
	Apply an impulse (in world coordinates) to the body at a point relative to the center of gravity (also in world coordinates).
cpVect	cpBodyGetVelAtWorldPoint (cpBody *body, cpVect point)
	Get the velocity on a body (in world units) at a point on the body in world coordinates.
cpVect	cpBodyGetVelAtLocalPoint (cpBody *body, cpVect point)
	Get the velocity on a body (in world units) at a point on the body in local coordinates.
static cpFloat	cpBodyKineticEnergy (const cpBody *body)
	Get the kinetic energy of a body.
void	cpBodyEachShape (cpBody *body, cpBodyShapeIteratorFunc func, void *data)
	Call func once for each shape attached to body and added to the space.
void	cpBodyEachConstraint (cpBody *body, cpBodyConstraintIteratorFunc func, void *data)
	Call func once for each constraint attached to body and added to the space.
void	cpBodyEachArbiter (cpBody *body, cpBodyArbiterIteratorFunc func, void *data)
	Call func once for each arbiter that is currently active on the body.

Detailed Description

Chipmunk's rigid body type.

Rigid bodies hold the physical properties of an object like it's mass, and position and velocity of it's center of gravity. They don't have an shape on their own. They are given a shape by creating collision shapes (cpShape) that point to the body.

Function Documentation

static cpBool cpBodyIsRogue ( const cpBody *  body )

inlinestatic

Returns true if the body has not been added to a space.

Note: Static bodies are a subtype of rogue bodies.