Panda3D
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Performs Euler integration on a vector of physically modelable objects given a quantum dt. More...
#include "linearEulerIntegrator.h"
Public Types | |
typedef pvector< PT(AngularForce)> | AngularForceVector |
typedef pvector< PT(LinearForce)> | LinearForceVector |
typedef pvector< LMatrix4f > | MatrixVector |
Public Member Functions | |
LinearEulerIntegrator () | |
constructor | |
virtual | ~LinearEulerIntegrator () |
destructor | |
int | get_ref_count () const |
Returns the current reference count. | |
WeakReferenceList * | get_weak_list () const |
Returns the WeakReferenceList associated with this ReferenceCount object. | |
bool | has_weak_list () const |
Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. | |
void | integrate (Physical *physical, LinearForceVector &forces, float dt) |
parent integration routine, hands off to child virtual. | |
void | local_object () |
This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. | |
void | operator delete (void *ptr) |
void | operator delete (void *ptr, void *) |
void | operator delete[] (void *ptr) |
void | operator delete[] (void *, void *) |
void * | operator new (size_t size) |
void * | operator new (size_t size, void *ptr) |
void * | operator new[] (size_t size) |
void * | operator new[] (size_t size, void *ptr) |
virtual void | output (ostream &out) const |
Write a string representation of this instance to <out>. | |
void | ref () const |
Explicitly increments the reference count. | |
bool | test_ref_count_integrity () const |
Does some easy checks to make sure that the reference count isn't completely bogus. | |
bool | test_ref_count_nonzero () const |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. | |
virtual bool | unref () const |
Explicitly decrements the reference count. | |
void | weak_ref (WeakPointerToVoid *ptv) |
Adds the indicated PointerToVoid as a weak reference to this object. | |
void | weak_unref (WeakPointerToVoid *ptv) |
Removes the indicated PointerToVoid as a weak reference to this object. | |
virtual void | write (ostream &out, unsigned int indent=0) const |
Write a string representation of this instance to <out>. | |
virtual void | write_precomputed_angular_matrices (ostream &out, unsigned int indent=0) const |
Write a string representation of this instance to <out>. | |
virtual void | write_precomputed_linear_matrices (ostream &out, unsigned int indent=0) const |
Write a string representation of this instance to <out>. | |
Static Public Member Functions | |
static TypeHandle | get_class_type () |
static void | init_type () |
Protected Member Functions | |
bool | do_test_ref_count_integrity () const |
Does some easy checks to make sure that the reference count isn't completely bogus. | |
bool | do_test_ref_count_nonzero () const |
Returns true if the reference count is nonzero, false otherwise. | |
const MatrixVector & | get_precomputed_angular_matrices () const |
const MatrixVector & | get_precomputed_linear_matrices () const |
void | precompute_angular_matrices (Physical *physical, const AngularForceVector &forces) |
effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt. | |
void | precompute_linear_matrices (Physical *physical, const LinearForceVector &forces) |
effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt. |
Performs Euler integration on a vector of physically modelable objects given a quantum dt.
Definition at line 25 of file linearEulerIntegrator.h.
LinearEulerIntegrator::LinearEulerIntegrator | ( | ) |
constructor
Definition at line 26 of file linearEulerIntegrator.cxx.
LinearEulerIntegrator::~LinearEulerIntegrator | ( | ) | [virtual] |
destructor
Definition at line 35 of file linearEulerIntegrator.cxx.
bool ReferenceCount::do_test_ref_count_integrity | ( | ) | const [protected, inherited] |
Does some easy checks to make sure that the reference count isn't completely bogus.
Returns true if ok, false otherwise.
Reimplemented in NodeReferenceCount, CachedTypedWritableReferenceCount, and NodeCachedReferenceCount.
Definition at line 29 of file referenceCount.cxx.
Referenced by ReferenceCount::do_test_ref_count_nonzero(), and ReferenceCount::test_ref_count_integrity().
bool ReferenceCount::do_test_ref_count_nonzero | ( | ) | const [protected, inherited] |
Returns true if the reference count is nonzero, false otherwise.
Definition at line 56 of file referenceCount.cxx.
References ReferenceCount::do_test_ref_count_integrity().
Referenced by ReferenceCount::test_ref_count_nonzero().
int ReferenceCount::get_ref_count | ( | ) | const [inline, inherited] |
Returns the current reference count.
Definition at line 155 of file referenceCount.I.
References ReferenceCount::test_ref_count_integrity().
Referenced by TransformState::clear_cache(), RenderState::clear_cache(), RenderState::finalize(), RenderEffects::finalize(), RenderEffect::finalize(), RenderAttrib::finalize(), InternalName::finalize(), TransformState::get_num_unused_states(), RenderState::get_num_unused_states(), TransformState::list_cycles(), RenderState::list_cycles(), GeomVertexFormat::remove_column(), TransformState::unref(), RenderState::unref(), RenderState::~RenderState(), and TransformState::~TransformState().
WeakReferenceList * ReferenceCount::get_weak_list | ( | ) | const [inline, inherited] |
Returns the WeakReferenceList associated with this ReferenceCount object.
If there has never been a WeakReferenceList associated with this object, creates one now.
Definition at line 307 of file referenceCount.I.
Referenced by ReferenceCount::weak_ref().
bool ReferenceCount::has_weak_list | ( | ) | const [inline, inherited] |
Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.
In general, this will be true if there was ever a WeakPointerTo created for this object (even if there is not any for it now).
Definition at line 294 of file referenceCount.I.
Referenced by ReferenceCount::weak_unref().
void LinearIntegrator::integrate | ( | Physical * | physical, |
LinearForceVector & | forces, | ||
float | dt | ||
) | [inherited] |
parent integration routine, hands off to child virtual.
Definition at line 49 of file linearIntegrator.cxx.
References PhysicsObject::get_position(), and PhysicsObject::set_last_position().
void ReferenceCount::local_object | ( | ) | [inline, inherited] |
This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.
This allows the object to be passed to functions that will increment and decrement the object's reference count temporarily, and it will prevent the object from being deleted (inappropriately), when the reference count returns to zero. It actually achieves this by setting a large positive value in the reference count field.
Definition at line 276 of file referenceCount.I.
Referenced by PGTop::cull_callback(), BoundingSphere::extend_by_hexahedron(), AsyncTaskManager::find_task(), AsyncTaskManager::find_tasks(), and AsyncTaskManager::find_tasks_matching().
void LinearEulerIntegrator::output | ( | ostream & | out | ) | const [virtual] |
Write a string representation of this instance to <out>.
Reimplemented from LinearIntegrator.
Definition at line 210 of file linearEulerIntegrator.cxx.
void BaseIntegrator::precompute_angular_matrices | ( | Physical * | physical, |
const AngularForceVector & | forces | ||
) | [protected, inherited] |
effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt.
Definition at line 103 of file baseIntegrator.cxx.
References TransformState::get_mat(), NodePath::get_parent(), and NodePath::get_transform().
void BaseIntegrator::precompute_linear_matrices | ( | Physical * | physical, |
const LinearForceVector & | forces | ||
) | [protected, inherited] |
effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt.
Definition at line 47 of file baseIntegrator.cxx.
References TransformState::get_mat(), NodePath::get_parent(), and NodePath::get_transform().
void 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.
Definition at line 179 of file referenceCount.I.
References ReferenceCount::test_ref_count_integrity().
Referenced by CachedTypedWritableReferenceCount::cache_ref(), TypedWritable::decode_raw_from_bam_stream(), NodeCachedReferenceCount::node_ref(), NodeReferenceCount::node_ref(), BamCacheRecord::set_data(), CullableObject::set_draw_callback(), and ModelRoot::set_reference().
bool ReferenceCount::test_ref_count_integrity | ( | ) | const [inline, inherited] |
Does some easy checks to make sure that the reference count isn't completely bogus.
Returns true if ok, false otherwise.
Reimplemented in NodeReferenceCount, CachedTypedWritableReferenceCount, and NodeCachedReferenceCount.
Definition at line 236 of file referenceCount.I.
References ReferenceCount::do_test_ref_count_integrity().
Referenced by EggGroupNode::add_child(), InternalName::find_ancestor(), InternalName::get_ancestor(), ReferenceCount::get_ref_count(), InternalName::get_top(), ReferenceCount::ref(), EggVertex::test_gref_integrity(), EggVertex::test_pref_integrity(), EggNode::test_under_integrity(), EggPrimitive::test_vref_integrity(), EggGroup::test_vref_integrity(), MouseWatcher::throw_event_pattern(), ReferenceCount::unref(), and EggNode::update_under().
bool ReferenceCount::test_ref_count_nonzero | ( | ) | const [inline, inherited] |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
Returns true if ok, false otherwise.
Definition at line 252 of file referenceCount.I.
References ReferenceCount::do_test_ref_count_nonzero().
Referenced by CopyOnWritePointer::test_ref_count_nonzero().
bool ReferenceCount::unref | ( | ) | const [inline, virtual, 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.) 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 true if the new reference count is nonzero, false if it is zero.
Reimplemented in GeomVertexArrayFormat, GeomVertexFormat, InternalName, RenderAttrib, RenderEffects, RenderState, and TransformState.
Definition at line 214 of file referenceCount.I.
References ReferenceCount::test_ref_count_integrity().
Referenced by CachedTypedWritableReferenceCount::cache_unref(), TypedWritable::decode_raw_from_bam_stream(), RenderEffect::finalize(), NodeCachedReferenceCount::node_unref(), NodeReferenceCount::node_unref(), TransformState::unref(), RenderState::unref(), RenderEffects::unref(), RenderAttrib::unref(), InternalName::unref(), GeomVertexFormat::unref(), and GeomVertexArrayFormat::unref().
void ReferenceCount::weak_ref | ( | WeakPointerToVoid * | ptv | ) | [inline, inherited] |
Adds the indicated PointerToVoid as a weak reference to this object.
Definition at line 321 of file referenceCount.I.
References WeakReferenceList::add_reference(), and ReferenceCount::get_weak_list().
void ReferenceCount::weak_unref | ( | WeakPointerToVoid * | ptv | ) | [inline, inherited] |
Removes the indicated PointerToVoid as a weak reference to this object.
It must have previously been added via a call to weak_ref().
Definition at line 334 of file referenceCount.I.
References WeakReferenceList::clear_reference(), and ReferenceCount::has_weak_list().
void LinearEulerIntegrator::write | ( | ostream & | out, |
unsigned int | indent = 0 |
||
) | const [virtual] |
Write a string representation of this instance to <out>.
Reimplemented from LinearIntegrator.
Definition at line 223 of file linearEulerIntegrator.cxx.
void BaseIntegrator::write_precomputed_angular_matrices | ( | ostream & | out, |
unsigned int | indent = 0 |
||
) | const [virtual, inherited] |
Write a string representation of this instance to <out>.
Definition at line 188 of file baseIntegrator.cxx.
Referenced by BaseIntegrator::write().
void BaseIntegrator::write_precomputed_linear_matrices | ( | ostream & | out, |
unsigned int | indent = 0 |
||
) | const [virtual, inherited] |
Write a string representation of this instance to <out>.
Definition at line 169 of file baseIntegrator.cxx.
Referenced by BaseIntegrator::write().