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Use weak_ptr for Actor and Projectile simulations (#6515)

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elsid 2022-01-21 00:28:56 +00:00 committed by psi29a
parent 7ae018993a
commit 580edf18b9
2 changed files with 22 additions and 7 deletions
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25
apps/openmw/mwphysics/mtphysics.cpp
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@ -118,7 +118,10 @@ namespace
const btCollisionWorld* mCollisionWorld; const btCollisionWorld* mCollisionWorld;
void operator()(MWPhysics::ActorSimulation& sim) const void operator()(MWPhysics::ActorSimulation& sim) const
{ {
auto& [actor, frameData] = sim; auto& [actorPtr, frameData] = sim;
const auto actor = actorPtr.lock();
if (actor == nullptr)
return;
actor->applyOffsetChange(); actor->applyOffsetChange();
frameData.mPosition = actor->getPosition(); frameData.mPosition = actor->getPosition();
if (frameData.mWaterCollision && frameData.mPosition.z() < frameData.mWaterlevel && actor->canMoveToWaterSurface(frameData.mWaterlevel, mCollisionWorld)) if (frameData.mWaterCollision && frameData.mPosition.z() < frameData.mWaterlevel && actor->canMoveToWaterSurface(frameData.mWaterlevel, mCollisionWorld))
@ -157,7 +160,10 @@ namespace
btCollisionWorld* mCollisionWorld; btCollisionWorld* mCollisionWorld;
void operator()(MWPhysics::ActorSimulation& sim) const void operator()(MWPhysics::ActorSimulation& sim) const
{ {
auto& [actor, frameData] = sim; auto& [actorPtr, frameData] = sim;
const auto actor = actorPtr.lock();
if (actor == nullptr)
return;
if (actor->setPosition(frameData.mPosition)) if (actor->setPosition(frameData.mPosition))
{ {
frameData.mPosition = actor->getPosition(); // account for potential position change made by script frameData.mPosition = actor->getPosition(); // account for potential position change made by script
@ -167,7 +173,10 @@ namespace
} }
void operator()(MWPhysics::ProjectileSimulation& sim) const void operator()(MWPhysics::ProjectileSimulation& sim) const
{ {
auto& [proj, frameData] = sim; auto& [projPtr, frameData] = sim;
const auto proj = projPtr.lock();
if (proj == nullptr)
return;
proj->setPosition(frameData.mPosition); proj->setPosition(frameData.mPosition);
proj->updateCollisionObjectPosition(); proj->updateCollisionObjectPosition();
mCollisionWorld->updateSingleAabb(proj->getCollisionObject()); mCollisionWorld->updateSingleAabb(proj->getCollisionObject());
@ -197,7 +206,10 @@ namespace
const MWPhysics::PhysicsTaskScheduler* scheduler; const MWPhysics::PhysicsTaskScheduler* scheduler;
void operator()(MWPhysics::ActorSimulation& sim) const void operator()(MWPhysics::ActorSimulation& sim) const
{ {
auto& [actor, frameData] = sim; auto& [actorPtr, frameData] = sim;
const auto actor = actorPtr.lock();
if (actor == nullptr)
return;
auto ptr = actor->getPtr(); auto ptr = actor->getPtr();
MWMechanics::CreatureStats& stats = ptr.getClass().getCreatureStats(ptr); MWMechanics::CreatureStats& stats = ptr.getClass().getCreatureStats(ptr);
@ -229,7 +241,10 @@ namespace
} }
void operator()(MWPhysics::ProjectileSimulation& sim) const void operator()(MWPhysics::ProjectileSimulation& sim) const
{ {
auto& [proj, frameData] = sim; auto& [projPtr, frameData] = sim;
const auto proj = projPtr.lock();
if (proj == nullptr)
return;
proj->setSimulationPosition(::interpolateMovements(*proj, mTimeAccum, mPhysicsDt)); proj->setSimulationPosition(::interpolateMovements(*proj, mTimeAccum, mPhysicsDt));
} }
}; };

4
apps/openmw/mwphysics/physicssystem.hpp
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@ -117,8 +117,8 @@ namespace MWPhysics
osg::Vec3f mStormDirection; osg::Vec3f mStormDirection;
}; };
using ActorSimulation = std::pair<std::shared_ptr<Actor>, ActorFrameData>; using ActorSimulation = std::pair<std::weak_ptr<Actor>, ActorFrameData>;
using ProjectileSimulation = std::pair<std::shared_ptr<Projectile>, ProjectileFrameData>; using ProjectileSimulation = std::pair<std::weak_ptr<Projectile>, ProjectileFrameData>;
using Simulation = std::variant<ActorSimulation, ProjectileSimulation>; using Simulation = std::variant<ActorSimulation, ProjectileSimulation>;
class PhysicsSystem : public RayCastingInterface class PhysicsSystem : public RayCastingInterface