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Merge pull request #4234 from AndrewMeadows/bispinor

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fix physics crash on disconnect from domain-server
This commit is contained in:
Brad Hefta-Gaub 2015-02-05 11:36:02 -08:00
commit d76ede624c
2 changed files with 13 additions and 8 deletions
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15
libraries/physics/src/PhysicsEngine.cpp
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@ -86,7 +86,7 @@ void PhysicsEngine::removeEntityInternal(EntityItem* entity) {
if (physicsInfo) {
EntityMotionState* motionState = static_cast<EntityMotionState*>(physicsInfo);
if (motionState->getRigidBody()) {
removeObject(motionState);
removeObjectFromBullet(motionState);
} else {
// only need to hunt in this list when there is no RigidBody
_nonPhysicalKinematicObjects.remove(motionState);
@ -130,7 +130,7 @@ void PhysicsEngine::clearEntitiesInternal() {
// For now we assume this would only be called on shutdown in which case we can just let the memory get lost.
QSet<EntityMotionState*>::const_iterator stateItr = _entityMotionStates.begin();
for (stateItr = _entityMotionStates.begin(); stateItr != _entityMotionStates.end(); ++stateItr) {
removeObject(*stateItr);
removeObjectFromBullet(*stateItr);
delete (*stateItr);
}
_entityMotionStates.clear();
@ -211,6 +211,9 @@ void PhysicsEngine::relayIncomingChangesToSimulation() {
if (removeMotionState) {
// if we get here then there is no need to keep this motionState around (no physics or kinematics)
_outgoingPackets.remove(motionState);
if (motionState->getType() == MOTION_STATE_TYPE_ENTITY) {
_entityMotionStates.remove(static_cast<EntityMotionState*>(motionState));
}
// NOTE: motionState will clean up its own backpointers in the Object
delete motionState;
continue;
@ -455,7 +458,7 @@ void PhysicsEngine::addObject(const ShapeInfo& shapeInfo, btCollisionShape* shap
_dynamicsWorld->addRigidBody(body);
}
void PhysicsEngine::removeObject(ObjectMotionState* motionState) {
void PhysicsEngine::removeObjectFromBullet(ObjectMotionState* motionState) {
assert(motionState);
btRigidBody* body = motionState->getRigidBody();
if (body) {
@ -464,8 +467,9 @@ void PhysicsEngine::removeObject(ObjectMotionState* motionState) {
ShapeInfoUtil::collectInfoFromShape(shape, shapeInfo);
_dynamicsWorld->removeRigidBody(body);
_shapeManager.releaseShape(shapeInfo);
delete body;
// NOTE: setRigidBody() modifies body->m_userPointer so we should clear the MotionState's body BEFORE deleting it.
motionState->setRigidBody(NULL);
delete body;
motionState->setKinematic(false, _numSubsteps);
removeContacts(motionState);
@ -492,8 +496,9 @@ bool PhysicsEngine::updateObjectHard(btRigidBody* body, ObjectMotionState* motio
// FAIL! we are unable to support these changes!
_shapeManager.releaseShape(oldShape);
delete body;
// NOTE: setRigidBody() modifies body->m_userPointer so we should clear the MotionState's body BEFORE deleting it.
motionState->setRigidBody(NULL);
delete body;
motionState->setKinematic(false, _numSubsteps);
removeContacts(motionState);
return false;

6
libraries/physics/src/PhysicsEngine.h
View file

@ -79,13 +79,13 @@ public:
/// \return true if Object added
void addObject(const ShapeInfo& shapeInfo, btCollisionShape* shape, ObjectMotionState* motionState);
/// \param motionState pointer to Object's MotionState
void removeObject(ObjectMotionState* motionState);
/// process queue of changed from external sources
void relayIncomingChangesToSimulation();
private:
/// \param motionState pointer to Object's MotionState
void removeObjectFromBullet(ObjectMotionState* motionState);
void removeContacts(ObjectMotionState* motionState);
// return 'true' of update was successful