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This commit is contained in:
Andrew Meadows 2018-01-17 13:51:07 -08:00
parent 3d3bfcf7a3
commit 75b5635d2f
4 changed files with 47 additions and 61 deletions
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47
libraries/entities/src/EntityItem.cpp
View file

@ -1610,37 +1610,6 @@ void EntityItem::setPosition(const glm::vec3& value) {
}
}
void EntityItem::setWorldTransformAndVelocitiesUnlessDirtyFlags(
const glm::vec3& position,
const glm::quat& orientation,
const glm::vec3& linearVelocity,
const glm::vec3& angularVelocity) {
// only ever call this for harvesting results of physics simulation
// if a dirty bit is set then an update arrived (via script or network) overriding the physics simulation
uint32_t flags = _dirtyFlags & (Simulation::DIRTY_TRANSFORM | Simulation::DIRTY_VELOCITIES);
if (!flags) {
// flags are clear
setWorldTransform(position, orientation);
setWorldVelocity(linearVelocity);
setWorldAngularVelocity(angularVelocity);
setLastSimulated(usecTimestampNow());
} else {
// only set properties NOT flagged
if (!(flags & Simulation::DIRTY_TRANSFORM)) {
setWorldTransform(position, orientation);
}
if (!(flags & Simulation::DIRTY_LINEAR_VELOCITY)) {
setWorldVelocity(linearVelocity);
}
if (!(flags & Simulation::DIRTY_ANGULAR_VELOCITY)) {
setWorldAngularVelocity(angularVelocity);
}
if (flags != (Simulation::DIRTY_TRANSFORM | Simulation::DIRTY_VELOCITIES)) {
setLastSimulated(usecTimestampNow());
}
}
}
void EntityItem::setParentID(const QUuid& value) {
QUuid oldParentID = getParentID();
if (oldParentID != value) {
@ -1770,22 +1739,6 @@ void EntityItem::setVelocity(const glm::vec3& value) {
}
}
void EntityItem::zeroAllVelocitiesUnlessDirtyFlags() {
uint32_t flags = _dirtyFlags & (Simulation::DIRTY_TRANSFORM | Simulation::DIRTY_VELOCITIES);
if (!flags) {
setWorldVelocity(glm::vec3(0.0f));
setWorldAngularVelocity(glm::vec3(0.0f));
} else {
if (!(flags & Simulation::DIRTY_LINEAR_VELOCITY)) {
setWorldVelocity(glm::vec3(0.0f));
}
if (!(flags & Simulation::DIRTY_ANGULAR_VELOCITY)) {
setWorldAngularVelocity(glm::vec3(0.0f));
}
}
_acceleration = glm::vec3(0.0f);
}
void EntityItem::setDamping(float value) {
auto clampedDamping = glm::clamp(value, 0.0f, 1.0f);
withWriteLock([&] {

7
libraries/entities/src/EntityItem.h
View file

@ -355,7 +355,6 @@ public:
void setRotation(glm::quat orientation);
void setVelocity(const glm::vec3& velocity);
void zeroAllVelocitiesUnlessDirtyFlags();
uint32_t getDirtyFlags() const;
void markDirtyFlags(uint32_t mask);
@ -370,12 +369,6 @@ public:
void setPhysicsInfo(void* data) { _physicsInfo = data; }
void setWorldTransformAndVelocitiesUnlessDirtyFlags(
const glm::vec3& position,
const glm::quat& orientation,
const glm::vec3& linearVelocity,
const glm::vec3& angularVelocity);
EntityTreeElementPointer getElement() const { return _element; }
EntityTreePointer getTree() const;
virtual SpatialParentTree* getParentTree() const override;

53
libraries/physics/src/EntityMotionState.cpp
View file

@ -257,11 +257,31 @@ void EntityMotionState::setWorldTransform(const btTransform& worldTrans) {
assert(entityTreeIsLocked());
measureBodyAcceleration();
_entity->setWorldTransformAndVelocitiesUnlessDirtyFlags(
bulletToGLM(worldTrans.getOrigin()),
bulletToGLM(worldTrans.getRotation()),
getBodyLinearVelocity(),
getBodyAngularVelocity());
// If transform or velocities are flagged as dirty it means a network or scripted change
// occured between the beginning and end of the stepSimulation() and we DON'T want to apply
// these physics simulation results.
uint32_t flags = _entity->getDirtyFlags() & (Simulation::DIRTY_TRANSFORM | Simulation::DIRTY_VELOCITIES);
if (!flags) {
// flags are clear
_entity->setWorldTransform(bulletToGLM(worldTrans.getOrigin()), bulletToGLM(worldTrans.getRotation()));
_entity->setWorldVelocity(getBodyLinearVelocity());
_entity->setWorldAngularVelocity(getBodyAngularVelocity());
_entity->setLastSimulated(usecTimestampNow());
} else {
// only set properties NOT flagged
if (!(flags & Simulation::DIRTY_TRANSFORM)) {
_entity->setWorldTransform(bulletToGLM(worldTrans.getOrigin()), bulletToGLM(worldTrans.getRotation()));
}
if (!(flags & Simulation::DIRTY_LINEAR_VELOCITY)) {
_entity->setWorldVelocity(getBodyLinearVelocity());
}
if (!(flags & Simulation::DIRTY_ANGULAR_VELOCITY)) {
_entity->setWorldAngularVelocity(getBodyAngularVelocity());
}
if (flags != (Simulation::DIRTY_TRANSFORM | Simulation::DIRTY_VELOCITIES)) {
_entity->setLastSimulated(usecTimestampNow());
}
}
if (_entity->getSimulatorID().isNull()) {
_loopsWithoutOwner++;
@ -517,7 +537,7 @@ void EntityMotionState::sendUpdate(OctreeEditPacketSender* packetSender, uint32_
if (!_body->isActive()) {
// make sure all derivatives are zero
_entity->zeroAllVelocitiesUnlessDirtyFlags();
zeroCleanObjectVelocities();
_numInactiveUpdates++;
} else {
glm::vec3 gravity = _entity->getGravity();
@ -544,7 +564,7 @@ void EntityMotionState::sendUpdate(OctreeEditPacketSender* packetSender, uint32_
if (movingSlowly) {
// velocities might not be zero, but we'll fake them as such, which will hopefully help convince
// other simulating observers to deactivate their own copies
_entity->zeroAllVelocitiesUnlessDirtyFlags();
zeroCleanObjectVelocities();
}
}
_numInactiveUpdates = 0;
@ -801,3 +821,22 @@ bool EntityMotionState::shouldBeLocallyOwned() const {
void EntityMotionState::upgradeOutgoingPriority(uint8_t priority) {
_outgoingPriority = glm::max<uint8_t>(_outgoingPriority, priority);
}
void EntityMotionState::zeroCleanObjectVelocities() const {
// If transform or velocities are flagged as dirty it means a network or scripted change
// occured between the beginning and end of the stepSimulation() and we DON'T want to apply
// these physics simulation results.
uint32_t flags = _entity->getDirtyFlags() & (Simulation::DIRTY_TRANSFORM | Simulation::DIRTY_VELOCITIES);
if (!flags) {
_entity->setWorldVelocity(glm::vec3(0.0f));
_entity->setWorldAngularVelocity(glm::vec3(0.0f));
} else {
if (!(flags & Simulation::DIRTY_LINEAR_VELOCITY)) {
_entity->setWorldVelocity(glm::vec3(0.0f));
}
if (!(flags & Simulation::DIRTY_ANGULAR_VELOCITY)) {
_entity->setWorldAngularVelocity(glm::vec3(0.0f));
}
}
_entity->setAcceleration(glm::vec3(0.0f));
}

1
libraries/physics/src/EntityMotionState.h
View file

@ -87,6 +87,7 @@ public:
protected:
// changes _outgoingPriority only if priority is larger
void upgradeOutgoingPriority(uint8_t priority);
void zeroCleanObjectVelocities() const;
#ifdef WANT_DEBUG_ENTITY_TREE_LOCKS
bool entityTreeIsLocked() const;