Cancel door sound if collision is detected and the sound is playing

CHANGELOG.md

@@ -18,6 +18,7 @@
     Bug #3894: Hostile spell effects not detected/present on first frame of OnPCHitMe
     Bug #4202: Open .omwaddon files without needing toopen openmw-cs first
     Bug #4240: Ash storm origin coordinates and hand shielding animation behavior are incorrect
+    Bug #4270: Closing doors while they are obstructed desyncs closing sfx
     Bug #4276: Resizing character window differs from vanilla
     Bug #4329: Removed birthsign abilities are restored after reloading the save
     Bug #4341: Error message about missing GDB is too vague

apps/openmw/mwworld/worldimp.cpp

@@ -1632,11 +1632,14 @@ namespace MWWorld
         bool reached = (targetRot == maxRot && state != MWWorld::DoorState::Idle) || targetRot == minRot;
 
         /// \todo should use convexSweepTest here
+        bool collisionWithActor = false;
         std::vector<MWWorld::Ptr> collisions = mPhysics->getCollisions(door, MWPhysics::CollisionType_Door, MWPhysics::CollisionType_Actor);
         for (MWWorld::Ptr& ptr : collisions)
         {
             if (ptr.getClass().isActor())
             {
+                collisionWithActor = true;
+                
                 // Collided with actor, ask actor to try to avoid door
                 if(ptr != getPlayerPtr() )
                 {
@@ -1651,6 +1654,25 @@ namespace MWWorld
             }
         }
 
+        // Cancel door closing sound if collision with actor is detected
+        if (collisionWithActor)
+        {
+            const ESM::Door* ref = door.get<ESM::Door>()->mBase;
+
+            if (state == MWWorld::DoorState::Opening)
+            {
+                const std::string& openSound = ref->mOpenSound;
+                if (!openSound.empty() && MWBase::Environment::get().getSoundManager()->getSoundPlaying(door, openSound))
+                    MWBase::Environment::get().getSoundManager()->stopSound3D(door, openSound);
+            }
+            else if (state == MWWorld::DoorState::Closing)
+            {
+                const std::string& closeSound = ref->mCloseSound;
+                if (!closeSound.empty() && MWBase::Environment::get().getSoundManager()->getSoundPlaying(door, closeSound))
+                    MWBase::Environment::get().getSoundManager()->stopSound3D(door, closeSound);
+            }
+        }
+
         // the rotation order we want to use
         mWorldScene->updateObjectRotation(door, false);
         return reached;