Structure that contains data needed for each collision step. More...

#include <PhysicsUpdateContext.h>

Public Member Functions
	Step ()=default

	Step (const Step &)

Public Attributes
PhysicsUpdateContext *	mContext
	The physics update context.

BroadPhase::UpdateState	mBroadPhaseUpdateState
	Handle returned by Broadphase::UpdatePrepare.

uint32	mNumActiveBodiesAtStepStart
	Number of bodies that were active at the start of the physics update step. Only these bodies will receive gravity (they are the first N in the active body list).

atomic< uint32 >	mConstraintReadIdx { 0 }
	Next constraint for determine active constraints.

uint8	mPadding1 [JPH_CACHE_LINE_SIZE - sizeof(atomic< uint32 >)]
	Padding to avoid sharing cache line with the next atomic.

atomic< uint32 >	mNumActiveConstraints { 0 }
	Number of constraints in the mActiveConstraints array.

uint8	mPadding2 [JPH_CACHE_LINE_SIZE - sizeof(atomic< uint32 >)]
	Padding to avoid sharing cache line with the next atomic.

atomic< uint32 >	mStepListenerReadIdx { 0 }
	Next step listener to call.

uint8	mPadding3 [JPH_CACHE_LINE_SIZE - sizeof(atomic< uint32 >)]
	Padding to avoid sharing cache line with the next atomic.

atomic< uint32 >	mApplyGravityReadIdx { 0 }
	Next body to apply gravity to.

uint8	mPadding4 [JPH_CACHE_LINE_SIZE - sizeof(atomic< uint32 >)]
	Padding to avoid sharing cache line with the next atomic.

atomic< uint32 >	mActiveBodyReadIdx { 0 }
	Index of fist active body that has not yet been processed by the broadphase.

uint8	mPadding5 [JPH_CACHE_LINE_SIZE - sizeof(atomic< uint32 >)]
	Padding to avoid sharing cache line with the next atomic.

BodyPairQueues	mBodyPairQueues
	Queues in which to put body pairs that need to be tested by the narrowphase.

uint32	mMaxBodyPairsPerQueue
	Amount of body pairs that we can queue per queue.

atomic< JobMask >	mActiveFindCollisionJobs
	A bitmask that indicates which jobs are still active.

atomic< uint >	mNumBodyPairs { 0 }
	The number of body pairs found in this step (used to size the contact cache in the next step)

atomic< uint >	mNumManifolds { 0 }
	The number of manifolds found in this step (used to size the contact cache in the next step)

JobHandle	mBroadPhasePrepare
	Prepares the new tree in the background.

JobHandleArray	mStepListeners
	Listeners to notify of the beginning of a physics step.

JobHandleArray	mDetermineActiveConstraints
	Determine which constraints will be active during this step.

JobHandleArray	mApplyGravity
	Update velocities of bodies with gravity.

JobHandleArray	mFindCollisions
	Find all collisions between active bodies an the world.

JobHandle	mUpdateBroadphaseFinalize
	Swap the newly built tree with the current tree.

JobHandle	mSetupVelocityConstraints
	Calculate properties for all constraints in the constraint manager.

JobHandle	mBuildIslandsFromConstraints
	Go over all constraints and assign the bodies they're attached to to an island.

JobHandle	mFinalizeIslands
	Finalize calculation simulation islands.

JobHandle	mBodySetIslandIndex
	Set the current island index on each body (not used by the simulation, only for drawing purposes)

SubSteps	mSubSteps
	Integration sub steps.

JobHandle	mContactRemovedCallbacks
	Calls the contact removed callbacks.

JobHandle	mStartNextStep
	Job that kicks the next step (empty for the last step)

Detailed Description

Structure that contains data needed for each collision step.

Constructor & Destructor Documentation

◆ Step() [1/2]

PhysicsUpdateContext::Step::Step ( )

default

◆ Step() [2/2]

PhysicsUpdateContext::Step::Step ( const Step & )

inline

Member Data Documentation

◆ mActiveBodyReadIdx

atomic<uint32> PhysicsUpdateContext::Step::mActiveBodyReadIdx { 0 }

Index of fist active body that has not yet been processed by the broadphase.

◆ mActiveFindCollisionJobs

atomic<JobMask> PhysicsUpdateContext::Step::mActiveFindCollisionJobs

A bitmask that indicates which jobs are still active.

◆ mApplyGravity

JobHandleArray PhysicsUpdateContext::Step::mApplyGravity

Update velocities of bodies with gravity.

◆ mApplyGravityReadIdx

atomic<uint32> PhysicsUpdateContext::Step::mApplyGravityReadIdx { 0 }

Next body to apply gravity to.

◆ mBodyPairQueues

BodyPairQueues PhysicsUpdateContext::Step::mBodyPairQueues

Queues in which to put body pairs that need to be tested by the narrowphase.

◆ mBodySetIslandIndex

JobHandle PhysicsUpdateContext::Step::mBodySetIslandIndex

Set the current island index on each body (not used by the simulation, only for drawing purposes)

◆ mBroadPhasePrepare

JobHandle PhysicsUpdateContext::Step::mBroadPhasePrepare

Prepares the new tree in the background.

◆ mBroadPhaseUpdateState

BroadPhase::UpdateState PhysicsUpdateContext::Step::mBroadPhaseUpdateState

Handle returned by Broadphase::UpdatePrepare.

◆ mBuildIslandsFromConstraints

JobHandle PhysicsUpdateContext::Step::mBuildIslandsFromConstraints

Go over all constraints and assign the bodies they're attached to to an island.

◆ mConstraintReadIdx

atomic<uint32> PhysicsUpdateContext::Step::mConstraintReadIdx { 0 }

Next constraint for determine active constraints.

◆ mContactRemovedCallbacks

JobHandle PhysicsUpdateContext::Step::mContactRemovedCallbacks

Calls the contact removed callbacks.

◆ mContext

PhysicsUpdateContext* PhysicsUpdateContext::Step::mContext

The physics update context.

◆ mDetermineActiveConstraints

JobHandleArray PhysicsUpdateContext::Step::mDetermineActiveConstraints

Determine which constraints will be active during this step.

◆ mFinalizeIslands

JobHandle PhysicsUpdateContext::Step::mFinalizeIslands

Finalize calculation simulation islands.

◆ mFindCollisions

JobHandleArray PhysicsUpdateContext::Step::mFindCollisions

Find all collisions between active bodies an the world.

◆ mMaxBodyPairsPerQueue

uint32 PhysicsUpdateContext::Step::mMaxBodyPairsPerQueue

Amount of body pairs that we can queue per queue.

◆ mNumActiveBodiesAtStepStart

uint32 PhysicsUpdateContext::Step::mNumActiveBodiesAtStepStart

Number of bodies that were active at the start of the physics update step. Only these bodies will receive gravity (they are the first N in the active body list).

◆ mNumActiveConstraints

atomic<uint32> PhysicsUpdateContext::Step::mNumActiveConstraints { 0 }

Number of constraints in the mActiveConstraints array.

◆ mNumBodyPairs

atomic<uint> PhysicsUpdateContext::Step::mNumBodyPairs { 0 }

The number of body pairs found in this step (used to size the contact cache in the next step)

◆ mNumManifolds

atomic<uint> PhysicsUpdateContext::Step::mNumManifolds { 0 }

The number of manifolds found in this step (used to size the contact cache in the next step)