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fix crash bugs (don't reference NULL pointers)

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This commit is contained in:
Andrew Meadows 2015-05-04 16:52:36 -07:00
parent 0932682c2a
commit 066e36c3e7
3 changed files with 17 additions and 9 deletions
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10
libraries/physics/src/EntityMotionState.cpp
View file

@ -375,8 +375,7 @@ void EntityMotionState::sendUpdate(OctreeEditPacketSender* packetSender, uint32_
}
uint32_t EntityMotionState::getIncomingDirtyFlags() const {
return _entity->getDirtyFlags();
/* TODO: reimplement this motion-type adjustment
uint32_t dirtyFlags = _entity->getDirtyFlags();
if (_body) {
// we add DIRTY_MOTION_TYPE if the body's motion type disagrees with entity velocity settings
int bodyFlags = _body->getCollisionFlags();
@ -387,7 +386,6 @@ uint32_t EntityMotionState::getIncomingDirtyFlags() const {
}
}
return dirtyFlags;
*/
}
// virtual
@ -397,7 +395,11 @@ void EntityMotionState::bump() {
void EntityMotionState::resetMeasuredBodyAcceleration() {
_lastMeasureStep = ObjectMotionState::getWorldSimulationStep();
_lastVelocity = bulletToGLM(_body->getLinearVelocity());
if (_body) {
_lastVelocity = bulletToGLM(_body->getLinearVelocity());
} else {
_lastVelocity = glm::vec3(0.0f);
}
_measuredAcceleration = glm::vec3(0.0f);
}

4
libraries/physics/src/PhysicalEntitySimulation.cpp
View file

@ -84,6 +84,7 @@ void PhysicalEntitySimulation::clearEntitiesInternal() {
EntityMotionState* motionState = static_cast<EntityMotionState*>(&(*stateItr));
EntityItem* entity = motionState->getEntity();
entity->setPhysicsInfo(nullptr);
clearEntitySimulation(entity);
}
// then delete the objects (aka MotionStates)
@ -113,6 +114,7 @@ VectorOfMotionStates& PhysicalEntitySimulation::getObjectsToDelete() {
entity->setPhysicsInfo(nullptr);
_tempVector.push_back(motionState);
}
clearEntitySimulation(entity);
}
_pendingRemoves.clear();
return _tempVector;
@ -161,7 +163,7 @@ void PhysicalEntitySimulation::handleOutgoingChanges(VectorOfMotionStates& motio
// walk the motionStates looking for those that correspond to entities
for (auto stateItr : motionStates) {
ObjectMotionState* state = &(*stateItr);
if (state->getType() == MOTION_STATE_TYPE_ENTITY) {
if (state && state->getType() == MOTION_STATE_TYPE_ENTITY) {
EntityMotionState* entityState = static_cast<EntityMotionState*>(state);
_outgoingChanges.insert(entityState);
_entitiesToSort.insert(entityState->getEntity());

12
libraries/physics/src/ThreadSafeDynamicsWorld.cpp
View file

@ -95,8 +95,10 @@ void ThreadSafeDynamicsWorld::synchronizeMotionStates() {
btCollisionObject* colObj = m_collisionObjects[i];
btRigidBody* body = btRigidBody::upcast(colObj);
if (body) {
synchronizeSingleMotionState(body);
_changedMotionStates.push_back(static_cast<ObjectMotionState*>(body->getMotionState()));
if (body->getMotionState()) {
synchronizeSingleMotionState(body);
_changedMotionStates.push_back(static_cast<ObjectMotionState*>(body->getMotionState()));
}
}
}
} else {
@ -104,8 +106,10 @@ void ThreadSafeDynamicsWorld::synchronizeMotionStates() {
for (int i=0;i<m_nonStaticRigidBodies.size();i++) {
btRigidBody* body = m_nonStaticRigidBodies[i];
if (body->isActive()) {
synchronizeSingleMotionState(body);
_changedMotionStates.push_back(static_cast<ObjectMotionState*>(body->getMotionState()));
if (body->getMotionState()) {
synchronizeSingleMotionState(body);
_changedMotionStates.push_back(static_cast<ObjectMotionState*>(body->getMotionState()));
}
}
}
}