Clear movement queue when changing to a new cell (Fixes #1802)

apps/openmw/mwworld/physicssystem.cpp

@@ -784,6 +784,13 @@ namespace MWWorld
         mMovementQueue.push_back(std::make_pair(ptr, movement));
     }
 
+    void PhysicsSystem::clearQueuedMovement()
+    {
+        mMovementQueue.clear();
+        mCollisions.clear();
+        mStandingCollisions.clear();
+    }
+
     const PtrVelocityList& PhysicsSystem::applyQueuedMovement(float dt)
     {
         // Collision events are only tracked for a single frame, so reset first

apps/openmw/mwworld/physicssystem.hpp

@@ -85,8 +85,12 @@ namespace MWWorld
             /// be overwritten. Valid until the next call to applyQueuedMovement.
             void queueObjectMovement(const Ptr &ptr, const Ogre::Vector3 &velocity);
 
+            /// Apply all queued movements, then clear the list.
             const PtrVelocityList& applyQueuedMovement(float dt);
 
+            /// Clear the queued movements list without applying.
+            void clearQueuedMovement();
+
             /// Return true if \a actor has been standing on \a object in this frame
             /// This will trigger whenever the object is directly below the actor.
             /// It doesn't matter if the actor is stationary or moving.

apps/openmw/mwworld/worldimp.cpp

@@ -840,6 +840,8 @@ namespace MWWorld
 
     void World::changeToInteriorCell (const std::string& cellName, const ESM::Position& position)
     {
+        mPhysics->clearQueuedMovement();
+
         if (mCurrentWorldSpace != cellName)
         {
             // changed worldspace
@@ -855,6 +857,8 @@ namespace MWWorld
 
     void World::changeToExteriorCell (const ESM::Position& position)
     {
+        mPhysics->clearQueuedMovement();
+
         if (mCurrentWorldSpace != "sys::default") // FIXME
         {
             // changed worldspace