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PhysicsObject Class Reference

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

#include <physicsObject.h>

Inheritance diagram for PhysicsObject:


Public Member Functions
	PhysicsObject (void)
	Default Constructor.
	PhysicsObject (const PhysicsObject &copy)
	copy constructor
virtual	~PhysicsObject (void)
	Destructor.
const PhysicsObject &	operator= (const PhysicsObject &other)
void	set_mass (float)
	Specify the mass of the object.
float	get_mass (void) const
	Mass Query.
void	set_position (const LPoint3f &pos)
	Vector position assignment.
void	set_position (float x, float y, float z)
	Piecewise position assignment.
LPoint3f	get_position (void) const
	Position Query.
void	set_position_HandOfGod (const LPoint3f &pos)
	use this to place an object in a completely new position, that has nothing to do with its last position (moved by the Hand Of God, or "HOG")
void	set_last_position (const LPoint3f &pos)
	Last position assignment.
LPoint3f	get_last_position (void) const
	Last position Query.
void	set_velocity (const LVector3f &vel)
	Vector velocity assignment.
void	set_velocity (float x, float y, float z)
	Piecewise velocity assignment.
LVector3f	get_velocity (void) const
	Velocity Query.
void	set_active (bool flag)
	Process Flag assignment.
bool	get_active (void) const
	Process Flag Query.
void	set_oriented (bool flag)
bool	get_oriented (void) const
void	set_terminal_velocity (float tv)
	tv assignment
float	get_terminal_velocity (void) const
	tv query
void	set_orientation (const LOrientationf &orientation)
LOrientationf	get_orientation (void) const
void	set_rotation (const LVector3f &rotation)
LVector3f	get_rotation (void) const
virtual LMatrix4f	get_inertial_tensor (void) const
	returns a transform matrix that represents the object's willingness to be forced.
virtual LMatrix4f	get_lcs (void) const
	returns a transform matrix to this object's local coordinate system.
virtual PhysicsObject *	make_copy (void) const
	dynamic copy.
virtual TypeHandle	get_type () const
virtual TypeHandle	force_init_type ()
int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type.
bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly.
int	get_ref_count () const
	Returns the current reference count.
int	ref () const
	Explicitly increments the reference count.
int	unref () const
	Explicitly decrements the reference count.
void	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus.
Static Public Member Functions
TypeHandle	get_class_type ()
void	init_type ()
Static Public Attributes
const float	_default_terminal_velocity
Private Attributes
LPoint3f	_position
LPoint3f	_last_position
LVector3f	_velocity
LOrientationf	_orientation
LVector3f	_rotation
float	_terminal_velocity
float	_mass
bool	_process_me
bool	_oriented
Static Private Attributes
TypeHandle	_type_handle

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 40 of file physicsObject.h.

Constructor & Destructor Documentation

PhysicsObject::PhysicsObject ( void )

Default Constructor.

Definition at line 35 of file physicsObject.cxx.
References _last_position, _orientation, _position, _rotation, and _velocity.
Referenced by operator=().

PhysicsObject::PhysicsObject ( const PhysicsObject & copy )

copy constructor

Definition at line 57 of file physicsObject.cxx.

PhysicsObject::~PhysicsObject ( void ) [virtual]

Destructor.

Definition at line 70 of file physicsObject.cxx.
References _last_position, _orientation, _oriented, _position, _rotation, _terminal_velocity, and _velocity.

Member Function Documentation

virtual TypeHandle PhysicsObject::force_init_type ( void ) [inline, virtual]

Reimplemented from TypedReferenceCount.
Definition at line 112 of file physicsObject.h.

bool PhysicsObject::get_active ( void ) const [inline]

Process Flag Query.

Definition at line 205 of file physicsObject.I.
References _rotation, and INLINE.

TypeHandle PhysicsObject::get_class_type ( void ) [inline, static]

Reimplemented from TypedReferenceCount.
Definition at line 101 of file physicsObject.h.
References TypedReferenceCount::get_class_type().

LMatrix4f PhysicsObject::get_inertial_tensor ( void ) const [virtual]

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

Definition at line 139 of file physicsObject.cxx.

LPoint3f PhysicsObject::get_last_position ( void ) const [inline]

Last position Query.

Definition at line 179 of file physicsObject.I.
References _orientation.

LMatrix4f PhysicsObject::get_lcs ( void ) const [virtual]

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

Definition at line 119 of file physicsObject.cxx.

float PhysicsObject::get_mass ( void ) const [inline]

Mass Query.

Definition at line 153 of file physicsObject.I.
References _process_me, and INLINE.

LOrientationf PhysicsObject::get_orientation ( void ) const [inline]

Definition at line 254 of file physicsObject.I.

bool PhysicsObject::get_oriented ( void ) const [inline]

Definition at line 290 of file physicsObject.I.
Referenced by ActorNode::update_transform().

LPoint3f PhysicsObject::get_position ( void ) const [inline]

Position Query.

Definition at line 166 of file physicsObject.I.
References _terminal_velocity, and INLINE.
Referenced by GeomParticleRenderer::kill_particle(), LinearNoiseForce::~LinearNoiseForce(), LinearSinkForce::~LinearSinkForce(), and LinearSourceForce::~LinearSourceForce().

int ReferenceCount::get_ref_count ( ) const [inline, inherited]

Returns the current reference count.

Definition at line 183 of file referenceCount.I.
Referenced by RenderState::determine_bin_index(), RenderEffects::determine_show_bounds(), FontPool::ns_garbage_collect(), TexturePool::ns_garbage_collect(), MaterialPool::ns_get_material(), and TexturePool::ns_release_texture().

LVector3f PhysicsObject::get_rotation ( void ) const [inline]

Definition at line 266 of file physicsObject.I.

float PhysicsObject::get_terminal_velocity ( void ) const [inline]

tv query

Definition at line 218 of file physicsObject.I.
References _oriented.

virtual TypeHandle PhysicsObject::get_type ( void ) const [inline, virtual]

Reimplemented from TypedReferenceCount.
Definition at line 109 of file physicsObject.h.

int TypedObject::get_type_index ( ) const [inline, inherited]

Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
This is equivalent to get_type().get_index().
Definition at line 71 of file typedObject.I.
References TypeHandle::get_name(), TypedObject::get_type(), and INLINE.

LVector3f PhysicsObject::get_velocity ( void ) const [inline]

Velocity Query.

Definition at line 192 of file physicsObject.I.
References _orientation, and INLINE.
Referenced by LinearFrictionForce::~LinearFrictionForce().

void PhysicsObject::init_type ( void ) [inline, static]

Reimplemented from TypedReferenceCount.
Definition at line 104 of file physicsObject.h.
References TypedReferenceCount::get_class_type(), and TypedReferenceCount::init_type().

bool TypedObject::is_exact_type ( TypeHandle handle ) const [inline, inherited]

Returns true if the current object is the indicated type exactly.

Definition at line 101 of file typedObject.I.
Referenced by PT(), and CollisionNode::xform().

bool TypedObject::is_of_type ( TypeHandle handle ) const [inline, inherited]

Returns true if the current object is or derives from the indicated type.

Definition at line 86 of file typedObject.I.
Referenced by EggMaterialCollection::collapse_equivalent_materials(), EggTextureCollection::collapse_equivalent_textures(), DeferredNodeProperty::compose(), AnimBundleMaker::create_s_channel(), CharacterMaker::create_slider(), ProjectionScreen::cull_callback(), DataNode::define_output(), EggNode::determine_draw_order(), CharacterMaker::egg_to_index(), EggGroupUniquifier::EggGroupUniquifier(), EggPoolUniquifier::EggPoolUniquifier(), EggGroupNode::find_textures(), StaticTextFont::get_glyph(), EggMaterialCollection::insert_materials(), EggTextureCollection::insert_textures(), CharacterJoint::make_copy(), PT(), EggGroupNode::r_flatten_transforms(), EggGroupNode::r_transform_vertices(), EggGroupNode::recompute_polygon_normals(), CollisionLevelState::reserve(), PandaFramework::reset_frame_rate(), PandaFramework::set_texture(), EggGroupNode::steal_children(), and DataGraphTraverser::traverse().

PhysicsObject * PhysicsObject::make_copy ( void ) const [virtual]

dynamic copy.

Reimplemented in BaseParticle, OrientedParticle, PointParticle, and ZSpinParticle.
Definition at line 104 of file physicsObject.cxx.

const PhysicsObject & PhysicsObject::operator= ( const PhysicsObject & other )

Definition at line 81 of file physicsObject.cxx.
References PhysicsObject().

int ReferenceCount::ref ( ) const [inline, inherited]

Explicitly increments the reference count.
User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.
This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.
The return value is the new reference count.
Definition at line 225 of file referenceCount.I.
Referenced by ClientDevice::ClientDevice(), EggGroupNode::find_textures(), EggGroupNode::r_apply_texmats(), EggGroupNode::r_flatten_transforms(), and EggGroupNode::reverse_vertex_ordering().

void PhysicsObject::set_active ( bool flag ) [inline]

Process Flag assignment.

Definition at line 127 of file physicsObject.I.
References _position, and INLINE.

void PhysicsObject::set_last_position ( const LPoint3f & pos ) [inline]

Last position assignment.

Definition at line 88 of file physicsObject.I.
References _velocity, x, and y.

void PhysicsObject::set_mass ( float m ) [inline]

Specify the mass of the object.

Definition at line 31 of file physicsObject.I.
References _position, and INLINE.

void PhysicsObject::set_orientation ( const LOrientationf & orientation ) [inline]

Definition at line 230 of file physicsObject.I.
Referenced by ActorNode::update_transform().

void PhysicsObject::set_oriented ( bool flag ) [inline]

Definition at line 278 of file physicsObject.I.
Referenced by PointParticle::PointParticle().

void PhysicsObject::set_position ( float x,

float y,

float z

) [inline]

Piecewise position assignment.

Definition at line 57 of file physicsObject.I.
References _last_position, and _position.

void PhysicsObject::set_position ( const LPoint3f & pos ) [inline]

Vector position assignment.

Definition at line 44 of file physicsObject.I.
References _position, INLINE, x, and y.
Referenced by ActorNode::update_transform().

void PhysicsObject::set_position_HandOfGod ( const LPoint3f & pos ) [inline]

use this to place an object in a completely new position, that has nothing to do with its last position (moved by the Hand Of God, or "HOG")

Definition at line 74 of file physicsObject.I.
References _velocity, and INLINE.

void PhysicsObject::set_rotation ( const LVector3f & rotation ) [inline]

Definition at line 242 of file physicsObject.I.

void PhysicsObject::set_terminal_velocity ( float tv ) [inline]

tv assignment

Definition at line 140 of file physicsObject.I.

void PhysicsObject::set_velocity ( float x,

float y,

float z

) [inline]

Piecewise velocity assignment.

Definition at line 114 of file physicsObject.I.
References _mass, and INLINE.

void PhysicsObject::set_velocity ( const LVector3f & vel ) [inline]

Vector velocity assignment.

Definition at line 101 of file physicsObject.I.
References _terminal_velocity, and INLINE.

void ReferenceCount::test_ref_count_integrity ( ) const [inline, inherited]

Does some easy checks to make sure that the reference count isn't completely bogus.

Definition at line 328 of file referenceCount.I.
References INLINE.
Referenced by EggNode::determine_bin(), and ReferenceCount::~ReferenceCount().

int ReferenceCount::unref ( ) const [inline, inherited]

Explicitly decrements the reference count.
Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic; plus, we don't have a virtual destructor anyway.) However, see the helper function unref_delete().
User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.
This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.
The return value is the new reference count.
Definition at line 293 of file referenceCount.I.
References INLINE.
Referenced by RenderState::determine_bin_index(), and RenderEffects::determine_show_bounds().

Member Data Documentation

const float PhysicsObject::_default_terminal_velocity [static]

Initial value:
config_physics.GetFloat("default_terminal_velocity", 400.0f)

Definition at line 51 of file config_physics.cxx.

LPoint3f PhysicsObject::_last_position [private]

Reimplemented in BaseParticle.
Definition at line 44 of file physicsObject.h.
Referenced by PhysicsObject(), set_position(), and ~PhysicsObject().

float PhysicsObject::_mass [private]

Definition at line 52 of file physicsObject.h.
Referenced by set_velocity().

LOrientationf PhysicsObject::_orientation [private]

Definition at line 48 of file physicsObject.h.
Referenced by get_last_position(), get_velocity(), PhysicsObject(), and ~PhysicsObject().

bool PhysicsObject::_oriented [private]

Definition at line 55 of file physicsObject.h.
Referenced by get_terminal_velocity(), and ~PhysicsObject().

LPoint3f PhysicsObject::_position [private]

Definition at line 43 of file physicsObject.h.
Referenced by PhysicsObject(), set_active(), set_mass(), set_position(), and ~PhysicsObject().

bool PhysicsObject::_process_me [private]

Definition at line 54 of file physicsObject.h.
Referenced by get_mass().

LVector3f PhysicsObject::_rotation [private]

Definition at line 49 of file physicsObject.h.
Referenced by get_active(), PhysicsObject(), and ~PhysicsObject().

float PhysicsObject::_terminal_velocity [private]

Definition at line 51 of file physicsObject.h.
Referenced by get_position(), set_velocity(), and ~PhysicsObject().

TypeHandle PhysicsObject::_type_handle [static, private]

Reimplemented from TypedReferenceCount.
Definition at line 24 of file physicsObject.cxx.

LVector3f PhysicsObject::_velocity [private]

Definition at line 45 of file physicsObject.h.
Referenced by PhysicsObject(), set_last_position(), set_position_HandOfGod(), and ~PhysicsObject().

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

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

Generated on Fri May 2 00:53:38 2003 for Panda by

1.3

PhysicsObject Class Reference

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation