A body on which physics will be applied. More...

#include "physicsObject.h"

Inheritance diagram for PhysicsObject:

Public Types
typedef pvector< PT(PhysicsObject)>	Vector

Public Member Functions
	PhysicsObject ()
	Default Constructor. More...

	PhysicsObject (const PhysicsObject &copy)
	copy constructor More...

virtual	~PhysicsObject ()
	Destructor. More...

virtual void	add_impact (const LPoint3 &offset_from_center_of_mass, const LVector3 &impulse)
	Adds an impulse and/or torque (i.e. More...

void	add_impulse (const LVector3 &impulse)
	Adds an impulse force (i.e. More...

virtual void	add_local_impact (const LPoint3 &offset_from_center_of_mass, const LVector3 &impulse)
	Adds an impulse and/or torque (i.e. More...

void	add_local_impulse (const LVector3 &impulse)
	Adds an impulse force (i.e. More...

void	add_local_torque (const LRotation &torque)
	Adds an torque force (i.e. More...

void	add_torque (const LRotation &torque)
	Adds an torque force (i.e. More...

virtual TypeHandle	force_init_type ()

bool	get_active () const
	Process Flag Query. More...

LVector3	get_implicit_velocity () const
	Velocity Query over the last dt. More...

virtual LMatrix4	get_inertial_tensor () const
	returns a transform matrix that represents the object's willingness to be forced. More...

LPoint3	get_last_position () const
	Get the position of the physics object at the start of the most recent do_physics. More...

virtual LMatrix4	get_lcs () const
	returns a transform matrix to this object's local coordinate system. More...

PN_stdfloat	get_mass () const
	Get the mass in slugs (or kilograms). More...

const std::string &	get_name ()

LOrientation	get_orientation () const
	get current orientation. More...

bool	get_oriented () const
	See set_oriented(). More...

LPoint3	get_position () const
	Position Query. More...

LRotation	get_rotation () const
	get rotation per second. More...

PN_stdfloat	get_terminal_velocity () const
	tv query More...

virtual TypeHandle	get_type () const

LVector3	get_velocity () const
	Velocity Query per second. More...

virtual PhysicsObject *	make_copy () const
	dynamic copy. More...

const PhysicsObject &	operator= (const PhysicsObject &other)

virtual void	output (std::ostream &out) const
	Write a string representation of this instance to <out>. More...

void	reset_orientation (const LOrientation &orientation)
	set the orientation while clearing the rotation velocity. More...

void	reset_position (const LPoint3 &pos)
	use this to place an object in a completely new position, that has nothing to do with its last position. More...

void	set_active (bool flag)
	Process Flag assignment. More...

void	set_last_position (const LPoint3 &pos)
	Last position assignment. More...

void	set_mass (PN_stdfloat)
	Set the mass in slugs (or kilograms). More...

void	set_name (const std::string &name)

void	set_orientation (const LOrientation &orientation)

void	set_oriented (bool flag)
	Set flag to determine whether this object should do any rotation or orientation calculations. More...

void	set_position (const LPoint3 &pos)
	Vector position assignment. More...

void	set_position (PN_stdfloat x, PN_stdfloat y, PN_stdfloat z)
	Piecewise position assignment. More...

void	set_rotation (const LRotation &rotation)
	set rotation as a quaternion delta per second. More...

void	set_terminal_velocity (PN_stdfloat tv)
	tv assignment More...

void	set_velocity (const LVector3 &vel)
	Vector velocity assignment. More...

void	set_velocity (PN_stdfloat x, PN_stdfloat y, PN_stdfloat z)
	Piecewise velocity assignment. More...

virtual void	write (std::ostream &out, int indent=0) const
	Write a string representation of this instance to <out>. More...

Public Member Functions inherited from TypedReferenceCount
	TypedReferenceCount (const TypedReferenceCount &copy)

void	operator= (const TypedReferenceCount &copy)

Public Member Functions inherited from TypedObject
	TypedObject (const TypedObject &copy)=default

TypedObject *	as_typed_object ()
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

const TypedObject *	as_typed_object () const
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

int	get_best_parent_from_Set (const std::set< int > &) const

int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...

bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly. More...

bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type. More...

TypedObject &	operator= (const TypedObject &copy)=default

Public Member Functions inherited from ReferenceCount
int	get_ref_count () const

WeakReferenceList *	get_weak_list () const
	Returns the WeakReferenceList associated with this ReferenceCount object. More...

bool	has_weak_list () const
	Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...

void	local_object ()
	This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More...

void	ref () const
	Explicitly increments the reference count. More...

bool	ref_if_nonzero () const
	Atomically increases the reference count of this object if it is not zero. More...

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

bool	test_ref_count_nonzero () const
	Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...

virtual bool	unref () const
	Explicitly decrements the reference count. More...

WeakReferenceList *	weak_ref ()
	Adds the indicated PointerToVoid as a weak reference to this object. More...

void	weak_unref ()
	Removes the indicated PointerToVoid as a weak reference to this object. More...

Static Public Member Functions
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedObject
static TypeHandle	get_class_type ()

static void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96. More...

Static Public Member Functions inherited from ReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Attributes
static ConfigVariableDouble	_default_terminal_velocity

Additional Inherited Members
Public Attributes inherited from TypedObject
	get_type

Public Attributes inherited from ReferenceCount
	get_ref_count
	Returns the current reference count. More...

Detailed Description

A body on which physics will be applied.

If you're looking to add physical motion to your class, do NOT derive from this. Derive from Physical instead.

Definition at line 27 of file physicsObject.h.

Constructor & Destructor Documentation

◆ PhysicsObject() [1/2]

PhysicsObject::PhysicsObject ( )

Default Constructor.

Definition at line 25 of file physicsObject.cxx.

Referenced by make_copy().

◆ PhysicsObject() [2/2]

PhysicsObject::PhysicsObject ( const PhysicsObject & copy )

copy constructor

Definition at line 42 of file physicsObject.cxx.

◆ ~PhysicsObject()

PhysicsObject::~PhysicsObject ( )

virtual

Destructor.

Definition at line 50 of file physicsObject.cxx.

Member Function Documentation

◆ add_impact()

void PhysicsObject::add_impact	(	const LPoint3 &	offset,
		const LVector3 &	force
	)

virtual

Adds an impulse and/or torque (i.e.

an instantanious change in velocity) based on how well the offset and impulse align with the center of mass (aka position). If you wanted to immitate this function you could work out the impulse and torque and call add_impulse and add_torque respectively. offset and force are in global (or parent) coordinates.

Definition at line 104 of file physicsObject.cxx.

◆ add_impulse()

void PhysicsObject::add_impulse ( const LVector3 & impulse )

inline

Adds an impulse force (i.e.

an instantanious change in velocity). This is a quicker way to get the velocity, add a vector to it and set that value to be the new velocity.

Definition at line 128 of file physicsObject.I.

◆ add_local_impact()

void PhysicsObject::add_local_impact	(	const LPoint3 &	offset_from_center_of_mass,
		const LVector3 &	force
	)

virtual

Adds an impulse and/or torque (i.e.

an instantanious change in velocity) based on how well the offset and impulse align with the center of mass (aka position). If you wanted to immitate this function you could work out the impulse and torque and call add_impulse and add_torque respectively. offset and force are in local coordinates.

Definition at line 87 of file physicsObject.cxx.

◆ add_local_impulse()

void PhysicsObject::add_local_impulse ( const LVector3 & impulse )

inline

Adds an impulse force (i.e.

an instantanious change in velocity). This is a quicker way to get the velocity, add a vector to it and set that value to be the new velocity.

Definition at line 106 of file physicsObject.I.

◆ add_local_torque()

void PhysicsObject::add_local_torque ( const LRotation & torque )

inline

Adds an torque force (i.e.

an instantanious change in velocity). This is a quicker way to get the angular velocity, add a vector to it and set that value to be the new angular velocity.

Definition at line 95 of file physicsObject.I.

◆ add_torque()

void PhysicsObject::add_torque ( const LRotation & torque )

inline

Adds an torque force (i.e.

an instantanious change in velocity). This is a quicker way to get the angular velocity, add a vector to it and set that value to be the new angular velocity.

Definition at line 117 of file physicsObject.I.

◆ get_active()

bool PhysicsObject::get_active ( ) const

inline

Process Flag Query.

Definition at line 194 of file physicsObject.I.

◆ get_implicit_velocity()

LVector3 PhysicsObject::get_implicit_velocity ( ) const

inline

Velocity Query over the last dt.

Definition at line 186 of file physicsObject.I.

Referenced by write().

◆ get_inertial_tensor()

LMatrix4 PhysicsObject::get_inertial_tensor ( ) const

virtual

returns a transform matrix that represents the object's willingness to be forced.

Definition at line 145 of file physicsObject.cxx.

◆ get_last_position()

LPoint3 PhysicsObject::get_last_position ( ) const

inline

Get the position of the physics object at the start of the most recent do_physics.

Definition at line 170 of file physicsObject.I.

◆ get_lcs()

LMatrix4 PhysicsObject::get_lcs ( ) const

virtual

returns a transform matrix to this object's local coordinate system.

Definition at line 131 of file physicsObject.cxx.

Referenced by ActorNode::update_transform().

◆ get_mass()

PN_stdfloat PhysicsObject::get_mass ( ) const

inline

Get the mass in slugs (or kilograms).

Definition at line 153 of file physicsObject.I.

◆ get_orientation()

LOrientation PhysicsObject::get_orientation ( ) const

inline

get current orientation.

Definition at line 228 of file physicsObject.I.

◆ get_oriented()

bool PhysicsObject::get_oriented ( ) const

inline

See set_oriented().

Definition at line 253 of file physicsObject.I.

◆ get_position()

LPoint3 PhysicsObject::get_position ( ) const

inline

Position Query.

Definition at line 161 of file physicsObject.I.

Referenced by LinearIntegrator::integrate(), and ParticleSystem::update().

◆ get_rotation()

LRotation PhysicsObject::get_rotation ( ) const

inline

get rotation per second.

Definition at line 236 of file physicsObject.I.

◆ get_terminal_velocity()

PN_stdfloat PhysicsObject::get_terminal_velocity ( ) const

inline

tv query

Definition at line 202 of file physicsObject.I.

◆ get_velocity()

LVector3 PhysicsObject::get_velocity ( ) const

inline

Velocity Query per second.

Definition at line 178 of file physicsObject.I.

◆ make_copy()

PhysicsObject * PhysicsObject::make_copy ( ) const

virtual

dynamic copy.

Reimplemented in BaseParticle, PointParticle, ZSpinParticle, and OrientedParticle.

Definition at line 75 of file physicsObject.cxx.

References PhysicsObject().

◆ output()

void PhysicsObject::output ( std::ostream & out ) const

virtual

Write a string representation of this instance to <out>.

Reimplemented in ZSpinParticle, BaseParticle, OrientedParticle, and PointParticle.

Definition at line 153 of file physicsObject.cxx.

◆ reset_orientation()

void PhysicsObject::reset_orientation ( const LOrientation & orientation )

inline

set the orientation while clearing the rotation velocity.

Definition at line 57 of file physicsObject.I.

◆ reset_position()

void PhysicsObject::reset_position ( const LPoint3 & pos )

inline

use this to place an object in a completely new position, that has nothing to do with its last position.

Definition at line 46 of file physicsObject.I.

◆ set_active()

void PhysicsObject::set_active ( bool flag )

inline

Process Flag assignment.

Definition at line 137 of file physicsObject.I.

Referenced by ActorNode::ActorNode().

◆ set_last_position()

void PhysicsObject::set_last_position ( const LPoint3 & pos )

inline

Last position assignment.

Definition at line 67 of file physicsObject.I.

Referenced by LinearIntegrator::integrate().

◆ set_mass()

void PhysicsObject::set_mass ( PN_stdfloat m )

inline

Set the mass in slugs (or kilograms).

Definition at line 18 of file physicsObject.I.

◆ set_oriented()

void PhysicsObject::set_oriented ( bool flag )

inline

Set flag to determine whether this object should do any rotation or orientation calculations.

Optimization.

Definition at line 245 of file physicsObject.I.

Referenced by OrientedParticle::OrientedParticle(), and PointParticle::PointParticle().

◆ set_position() [1/2]

void PhysicsObject::set_position ( const LPoint3 & pos )

inline

Vector position assignment.

This is also used as the center of mass.

Definition at line 27 of file physicsObject.I.

◆ set_position() [2/2]

void PhysicsObject::set_position	(	PN_stdfloat	x,
		PN_stdfloat	y,
		PN_stdfloat	z
	)

inline

Piecewise position assignment.

Definition at line 36 of file physicsObject.I.

◆ set_rotation()

void PhysicsObject::set_rotation ( const LRotation & rotation )

inline

set rotation as a quaternion delta per second.

Definition at line 219 of file physicsObject.I.

◆ set_terminal_velocity()

void PhysicsObject::set_terminal_velocity ( PN_stdfloat tv )

inline

tv assignment

Definition at line 145 of file physicsObject.I.

◆ set_velocity() [1/2]

void PhysicsObject::set_velocity ( const LVector3 & vel )

inline

Vector velocity assignment.

Definition at line 75 of file physicsObject.I.

◆ set_velocity() [2/2]

void PhysicsObject::set_velocity	(	PN_stdfloat	x,
		PN_stdfloat	y,
		PN_stdfloat	z
	)

inline

Piecewise velocity assignment.

Definition at line 84 of file physicsObject.I.

◆ write()

void PhysicsObject::write	(	std::ostream &	out,
		int	indent = `0`
	)		const

virtual

Write a string representation of this instance to <out>.

Reimplemented in ZSpinParticle, BaseParticle, OrientedParticle, and PointParticle.

Definition at line 163 of file physicsObject.cxx.

References get_implicit_velocity(), and indent().

Referenced by ActorNode::write(), BaseParticle::write(), and Physical::write().

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

panda/src/physics/physicsObject.h
panda/src/physics/physicsObject.cxx
panda/src/physics/physicsObject.I

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PhysicsObject() [1/2]

◆ PhysicsObject() [2/2]

◆ ~PhysicsObject()

Member Function Documentation

◆ add_impact()

◆ add_impulse()

◆ add_local_impact()

◆ add_local_impulse()

◆ add_local_torque()

◆ add_torque()

◆ get_active()

◆ get_implicit_velocity()

◆ get_inertial_tensor()

◆ get_last_position()

◆ get_lcs()

◆ get_mass()

◆ get_orientation()

◆ get_oriented()

◆ get_position()

◆ get_rotation()

◆ get_terminal_velocity()

◆ get_velocity()

◆ make_copy()

◆ output()

◆ reset_orientation()

◆ reset_position()

◆ set_active()

◆ set_last_position()

◆ set_mass()

◆ set_oriented()

◆ set_position() [1/2]

◆ set_position() [2/2]

◆ set_rotation()

◆ set_terminal_velocity()

◆ set_velocity() [1/2]

◆ set_velocity() [2/2]

◆ write()