#include <BodyManager.h>

Inheritance diagram for BodyManager:

Classes
struct	BodyStats
	Helper struct that counts the number of bodies of each type. More...

struct	DrawSettings
	Draw settings. More...

Public Types
enum class	EShapeColor { InstanceColor , ShapeTypeColor , MotionTypeColor , SleepColor , IslandColor , MaterialColor }

using	MutexMask = uint64
	Bodies are protected using an array of mutexes (so a fixed number, not 1 per body). Each bit in this mask indicates a locked mutex.

Public Member Functions
JPH_OVERRIDE_NEW_DELETE	~BodyManager ()
	Destructor.

void	Init (uint inMaxBodies, uint inNumBodyMutexes, const BroadPhaseLayerInterface &inLayerInterface)
	Initialize the manager.

uint	GetNumBodies () const
	Gets the current amount of bodies that are in the body manager.

uint	GetMaxBodies () const
	Gets the max bodies that we can support.

BodyStats	GetBodyStats () const
	Get stats about the bodies in the body manager (slow, iterates through all bodies)

Body *	AllocateBody (const BodyCreationSettings &inBodyCreationSettings) const
	Create a body using creation settings. The returned body will not be part of the body manager yet.

Body *	AllocateSoftBody (const SoftBodyCreationSettings &inSoftBodyCreationSettings) const
	Create a soft body using creation settings. The returned body will not be part of the body manager yet.

void	FreeBody (Body *inBody) const
	Free a body that has not been added to the body manager yet (if it has, use DestroyBodies).

bool	AddBody (Body *ioBody)
	Add a body to the body manager, assigning it the next available ID. Returns false if no more IDs are available.

bool	AddBodyWithCustomID (Body *ioBody, const BodyID &inBodyID)
	Add a body to the body manager, assigning it a custom ID. Returns false if the ID is not valid.

void	RemoveBodies (const BodyID inBodyIDs, int inNumber, Body *outBodies)
	Remove a list of bodies from the body manager.

void	DestroyBodies (const BodyID *inBodyIDs, int inNumber)
	Remove a set of bodies from the body manager and frees them.

void	ActivateBodies (const BodyID *inBodyIDs, int inNumber)

void	DeactivateBodies (const BodyID *inBodyIDs, int inNumber)

void	SetMotionQuality (Body &ioBody, EMotionQuality inMotionQuality)
	Update the motion quality for a body.

void	GetActiveBodies (EBodyType inType, BodyIDVector &outBodyIDs) const
	Get copy of the list of active bodies under protection of a lock.

const BodyID *	GetActiveBodiesUnsafe (EBodyType inType) const
	Get the list of active bodies. Note: Not thread safe. The active bodies list can change at any moment.

uint32	GetNumActiveBodies (EBodyType inType) const
	Get the number of active bodies.

uint32	GetNumActiveCCDBodies () const
	Get the number of active bodies that are using continuous collision detection.

void	SetBodyActivationListener (BodyActivationListener *inListener)
	Listener that is notified whenever a body is activated/deactivated.

BodyActivationListener *	GetBodyActivationListener () const

const BodyVector &	GetBodies () const
	Get all bodies. Note that this can contain invalid body pointers, call sIsValidBodyPointer to check.

BodyVector &	GetBodies ()
	Get all bodies. Note that this can contain invalid body pointers, call sIsValidBodyPointer to check.

void	GetBodyIDs (BodyIDVector &outBodies) const
	Get all body IDs under the protection of a lock.

const Body &	GetBody (const BodyID &inID) const
	Access a body (not protected by lock)

Body &	GetBody (const BodyID &inID)
	Access a body (not protected by lock)

const Body *	TryGetBody (const BodyID &inID) const
	Access a body, will return a nullptr if the body ID is no longer valid (not protected by lock)

Body *	TryGetBody (const BodyID &inID)
	Access a body, will return a nullptr if the body ID is no longer valid (not protected by lock)

SharedMutex &	GetMutexForBody (const BodyID &inID) const
	Access the mutex for a single body.

void	LockAllBodies () const
	Lock all bodies. This should only be done during PhysicsSystem::Update().

void	UnlockAllBodies () const
	Unlock all bodies. This should only be done during PhysicsSystem::Update().

void	SetBodyObjectLayerInternal (Body &ioBody, ObjectLayer inLayer) const
	Function to update body's layer (should only be called by the BodyInterface since it also requires updating the broadphase)

void	InvalidateContactCacheForBody (Body &ioBody)
	Set the Body::EFlags::InvalidateContactCache flag for the specified body. This means that the collision cache is invalid for any body pair involving that body until the next physics step.

void	ValidateContactCacheForAllBodies ()
	Reset the Body::EFlags::InvalidateContactCache flag for all bodies. All contact pairs in the contact cache will now by valid again.

void	SaveState (StateRecorder &inStream, const StateRecorderFilter *inFilter) const
	Saving state for replay.

bool	RestoreState (StateRecorder &inStream)
	Restoring state for replay. Returns false if failed.

void	SaveBodyState (const Body &inBody, StateRecorder &inStream) const
	Save the state of a single body for replay.

void	RestoreBodyState (Body &inBody, StateRecorder &inStream)
	Save the state of a single body for replay.

void	Draw (const DrawSettings &inSettings, const PhysicsSettings &inPhysicsSettings, DebugRenderer inRenderer, const BodyDrawFilter inBodyFilter=nullptr)
	Draw the state of the bodies (debugging purposes)

Batch body mutex access (do not use directly)
MutexMask	GetAllBodiesMutexMask () const

MutexMask	GetMutexMask (const BodyID *inBodies, int inNumber) const

void	LockRead (MutexMask inMutexMask) const

void	UnlockRead (MutexMask inMutexMask) const

void	LockWrite (MutexMask inMutexMask) const

void	UnlockWrite (MutexMask inMutexMask) const

Public Member Functions inherited from NonCopyable
	NonCopyable ()=default

	NonCopyable (const NonCopyable &)=delete

void	operator= (const NonCopyable &)=delete

Static Public Member Functions
static bool	sIsValidBodyPointer (const Body *inBody)
	Check if this is a valid body pointer. When a body is freed the memory that the pointer occupies is reused to store a freelist.

Detailed Description

Class that contains all bodies

WARNING: This class is an internal part of PhysicsSystem, it has no functions that can be called by users of the library. Its functionality is exposed through PhysicsSystem, BodyInterface, BodyLockRead and BodyLockWrite.

Member Typedef Documentation

◆ MutexMask

using BodyManager::MutexMask = uint64

Bodies are protected using an array of mutexes (so a fixed number, not 1 per body). Each bit in this mask indicates a locked mutex.

Member Enumeration Documentation

◆ EShapeColor

enum class BodyManager::EShapeColor

strong

Enumerator
InstanceColor	Random color per instance.
ShapeTypeColor	Convex = green, scaled = yellow, compound = orange, mesh = red.
MotionTypeColor	Static = grey, keyframed = green, dynamic = random color per instance.
SleepColor	Static = grey, keyframed = green, dynamic = yellow, sleeping = red.
IslandColor	Static = grey, active = random color per island, sleeping = light grey.
MaterialColor	Color as defined by the PhysicsMaterial of the shape.

Constructor & Destructor Documentation

◆ ~BodyManager()

BodyManager::~BodyManager ( )

Destructor.

Member Function Documentation

◆ ActivateBodies()

void BodyManager::ActivateBodies	(	const BodyID *	inBodyIDs,
		int	inNumber )

Activate a list of bodies. This function should only be called when an exclusive lock for the bodies are held.

◆ AddBody()

bool BodyManager::AddBody ( Body * ioBody )

Add a body to the body manager, assigning it the next available ID. Returns false if no more IDs are available.

◆ AddBodyWithCustomID()

bool BodyManager::AddBodyWithCustomID	(	Body *	ioBody,
		const BodyID &	inBodyID )

Add a body to the body manager, assigning it a custom ID. Returns false if the ID is not valid.

◆ AllocateBody()

Body * BodyManager::AllocateBody ( const BodyCreationSettings & inBodyCreationSettings ) const

Create a body using creation settings. The returned body will not be part of the body manager yet.

◆ AllocateSoftBody()

Body * BodyManager::AllocateSoftBody ( const SoftBodyCreationSettings & inSoftBodyCreationSettings ) const

Create a soft body using creation settings. The returned body will not be part of the body manager yet.

◆ DeactivateBodies()

void BodyManager::DeactivateBodies	(	const BodyID *	inBodyIDs,
		int	inNumber )

Deactivate a list of bodies. This function should only be called when an exclusive lock for the bodies are held.

◆ DestroyBodies()

void BodyManager::DestroyBodies	(	const BodyID *	inBodyIDs,
		int	inNumber )

Remove a set of bodies from the body manager and frees them.

◆ Draw()

void BodyManager::Draw	(	const DrawSettings &	inSettings,
		const PhysicsSettings &	inPhysicsSettings,
		DebugRenderer *	inRenderer,
		const BodyDrawFilter *	inBodyFilter = nullptr )

Draw the state of the bodies (debugging purposes)

◆ FreeBody()

void BodyManager::FreeBody ( Body * inBody ) const

Free a body that has not been added to the body manager yet (if it has, use DestroyBodies).

◆ GetActiveBodies()

void BodyManager::GetActiveBodies	(	EBodyType	inType,
		BodyIDVector &	outBodyIDs ) const

Get copy of the list of active bodies under protection of a lock.

◆ GetActiveBodiesUnsafe()

const BodyID * BodyManager::GetActiveBodiesUnsafe ( EBodyType inType ) const

inline

Get the list of active bodies. Note: Not thread safe. The active bodies list can change at any moment.

◆ GetAllBodiesMutexMask()

MutexMask BodyManager::GetAllBodiesMutexMask ( ) const

inline

◆ GetBodies() [1/2]

BodyVector & BodyManager::GetBodies ( )

inline

Get all bodies. Note that this can contain invalid body pointers, call sIsValidBodyPointer to check.

◆ GetBodies() [2/2]

const BodyVector & BodyManager::GetBodies ( ) const

inline

Get all bodies. Note that this can contain invalid body pointers, call sIsValidBodyPointer to check.

◆ GetBody() [1/2]

Body & BodyManager::GetBody ( const BodyID & inID )

inline

Access a body (not protected by lock)

◆ GetBody() [2/2]

const Body & BodyManager::GetBody ( const BodyID & inID ) const

inline

Access a body (not protected by lock)

◆ GetBodyActivationListener()

BodyActivationListener * BodyManager::GetBodyActivationListener ( ) const

inline

◆ GetBodyIDs()

void BodyManager::GetBodyIDs ( BodyIDVector & outBodies ) const

Get all body IDs under the protection of a lock.

◆ GetBodyStats()

BodyManager::BodyStats BodyManager::GetBodyStats ( ) const

Get stats about the bodies in the body manager (slow, iterates through all bodies)

◆ GetMaxBodies()

uint BodyManager::GetMaxBodies ( ) const

inline

Gets the max bodies that we can support.

◆ GetMutexForBody()

SharedMutex & BodyManager::GetMutexForBody ( const BodyID & inID ) const

inline

Access the mutex for a single body.

◆ GetMutexMask()

BodyManager::MutexMask BodyManager::GetMutexMask	(	const BodyID *	inBodies,
		int	inNumber ) const

◆ GetNumActiveBodies()

uint32 BodyManager::GetNumActiveBodies ( EBodyType inType ) const

inline

Get the number of active bodies.

◆ GetNumActiveCCDBodies()

uint32 BodyManager::GetNumActiveCCDBodies ( ) const

inline

Get the number of active bodies that are using continuous collision detection.

◆ GetNumBodies()

uint BodyManager::GetNumBodies ( ) const

Gets the current amount of bodies that are in the body manager.

◆ Init()

void BodyManager::Init	(	uint	inMaxBodies,
		uint	inNumBodyMutexes,
		const BroadPhaseLayerInterface &	inLayerInterface )

Initialize the manager.

◆ InvalidateContactCacheForBody()

void BodyManager::InvalidateContactCacheForBody ( Body & ioBody )

Set the Body::EFlags::InvalidateContactCache flag for the specified body. This means that the collision cache is invalid for any body pair involving that body until the next physics step.

◆ LockAllBodies()

void BodyManager::LockAllBodies ( ) const

Lock all bodies. This should only be done during PhysicsSystem::Update().

◆ LockRead()

void BodyManager::LockRead ( MutexMask inMutexMask ) const

◆ LockWrite()

void BodyManager::LockWrite ( MutexMask inMutexMask ) const

◆ RemoveBodies()

void BodyManager::RemoveBodies	(	const BodyID *	inBodyIDs,
		int	inNumber,
		Body **	outBodies )

Remove a list of bodies from the body manager.

◆ RestoreBodyState()

void BodyManager::RestoreBodyState	(	Body &	inBody,
		StateRecorder &	inStream )

Save the state of a single body for replay.

◆ RestoreState()

bool BodyManager::RestoreState ( StateRecorder & inStream )

Restoring state for replay. Returns false if failed.

◆ SaveBodyState()

void BodyManager::SaveBodyState	(	const Body &	inBody,
		StateRecorder &	inStream ) const

Save the state of a single body for replay.

◆ SaveState()

void BodyManager::SaveState	(	StateRecorder &	inStream,
		const StateRecorderFilter *	inFilter ) const

Saving state for replay.

◆ SetBodyActivationListener()

void BodyManager::SetBodyActivationListener ( BodyActivationListener * inListener )

Listener that is notified whenever a body is activated/deactivated.

◆ SetBodyObjectLayerInternal()

void BodyManager::SetBodyObjectLayerInternal	(	Body &	ioBody,
		ObjectLayer	inLayer ) const

inline

Function to update body's layer (should only be called by the BodyInterface since it also requires updating the broadphase)

◆ SetMotionQuality()

void BodyManager::SetMotionQuality	(	Body &	ioBody,
		EMotionQuality	inMotionQuality )

Update the motion quality for a body.

◆ sIsValidBodyPointer()

static bool BodyManager::sIsValidBodyPointer ( const Body * inBody )

inlinestatic

Check if this is a valid body pointer. When a body is freed the memory that the pointer occupies is reused to store a freelist.

◆ TryGetBody() [1/2]

Body * BodyManager::TryGetBody ( const BodyID & inID )

inline

Access a body, will return a nullptr if the body ID is no longer valid (not protected by lock)

◆ TryGetBody() [2/2]

const Body * BodyManager::TryGetBody ( const BodyID & inID ) const

inline

Access a body, will return a nullptr if the body ID is no longer valid (not protected by lock)

◆ UnlockAllBodies()

void BodyManager::UnlockAllBodies ( ) const

Unlock all bodies. This should only be done during PhysicsSystem::Update().

◆ UnlockRead()

void BodyManager::UnlockRead ( MutexMask inMutexMask ) const

◆ UnlockWrite()

void BodyManager::UnlockWrite ( MutexMask inMutexMask ) const

◆ ValidateContactCacheForAllBodies()

void BodyManager::ValidateContactCacheForAllBodies ( )

Reset the Body::EFlags::InvalidateContactCache flag for all bodies. All contact pairs in the contact cache will now by valid again.

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

Jolt/Physics/Body/BodyManager.h
Jolt/Physics/Body/BodyManager.cpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Typedef Documentation

◆ MutexMask

Member Enumeration Documentation

◆ EShapeColor

Constructor & Destructor Documentation

◆ ~BodyManager()

Member Function Documentation

◆ ActivateBodies()

◆ AddBody()

◆ AddBodyWithCustomID()

◆ AllocateBody()

◆ AllocateSoftBody()

◆ DeactivateBodies()

◆ DestroyBodies()

◆ Draw()

◆ FreeBody()

◆ GetActiveBodies()

◆ GetActiveBodiesUnsafe()

◆ GetAllBodiesMutexMask()

◆ GetBodies() [1/2]

◆ GetBodies() [2/2]

◆ GetBody() [1/2]

◆ GetBody() [2/2]

◆ GetBodyActivationListener()

◆ GetBodyIDs()

◆ GetBodyStats()

◆ GetMaxBodies()

◆ GetMutexForBody()

◆ GetMutexMask()

◆ GetNumActiveBodies()

◆ GetNumActiveCCDBodies()

◆ GetNumBodies()

◆ Init()

◆ InvalidateContactCacheForBody()

◆ LockAllBodies()

◆ LockRead()

◆ LockWrite()

◆ RemoveBodies()

◆ RestoreBodyState()

◆ RestoreState()

◆ SaveBodyState()

◆ SaveState()

◆ SetBodyActivationListener()

◆ SetBodyObjectLayerInternal()

◆ SetMotionQuality()

◆ sIsValidBodyPointer()

◆ TryGetBody() [1/2]

◆ TryGetBody() [2/2]

◆ UnlockAllBodies()

◆ UnlockRead()

◆ UnlockWrite()

◆ ValidateContactCacheForAllBodies()