update a motionstate's idea of what the entity-server thinks when an incoming update packet arrives

libraries/physics/src/EntityMotionState.cpp

@@ -47,6 +47,34 @@ EntityMotionState::~EntityMotionState() {
     assert(!_entity);
 }
 
+void EntityMotionState::updateServerPhysicsVariables(uint32_t flags) {
+    if (flags & EntityItem::DIRTY_POSITION) {
+        _sentPosition = _entity->getPosition();
+    }
+    if (flags & EntityItem::DIRTY_ROTATION) {
+        _sentRotation = _entity->getRotation();
+    }
+    if (flags & EntityItem::DIRTY_LINEAR_VELOCITY) {
+        _sentVelocity = _entity->getVelocity();
+    }
+    if (flags & EntityItem::DIRTY_ANGULAR_VELOCITY) {
+        _sentAngularVelocity = _entity->getAngularVelocity();
+    }
+}
+
+// virtual
+void EntityMotionState::handleEasyChanges(uint32_t flags) {
+    updateServerPhysicsVariables(flags);
+    ObjectMotionState::handleEasyChanges(flags);
+}
+
+
+// virtual
+void EntityMotionState::handleHardAndEasyChanges(uint32_t flags, PhysicsEngine* engine) {
+    updateServerPhysicsVariables(flags);
+    ObjectMotionState::handleHardAndEasyChanges(flags, engine);
+}
+
 void EntityMotionState::clearEntity() {
     _entity = nullptr;
 }

libraries/physics/src/EntityMotionState.h

@@ -28,6 +28,10 @@ public:
     EntityMotionState(btCollisionShape* shape, EntityItem* item);
     virtual ~EntityMotionState();
 
+    void updateServerPhysicsVariables(uint32_t flags);
+    virtual void handleEasyChanges(uint32_t flags);
+    virtual void handleHardAndEasyChanges(uint32_t flags, PhysicsEngine* engine);
+
     /// \return MOTION_TYPE_DYNAMIC or MOTION_TYPE_STATIC based on params set in EntityItem
     virtual MotionType computeObjectMotionType() const;
 
@@ -88,6 +92,7 @@ protected:
     bool _sentMoving;   // true if last update was moving
     int _numNonMovingUpdates; // RELIABLE_SEND_HACK for "not so reliable" resends of packets for non-moving objects
 
+    // TODO XXX rename _sent* to _server*
     uint32_t _sentStep;
     glm::vec3 _sentPosition;    // in simulation-frame (not world-frame)
     glm::quat _sentRotation;;

libraries/physics/src/ObjectMotionState.h

@@ -68,8 +68,8 @@ public:
     ObjectMotionState(btCollisionShape* shape);
     ~ObjectMotionState();
 
-    void handleEasyChanges(uint32_t flags);
+    virtual void handleEasyChanges(uint32_t flags);
-    void handleHardAndEasyChanges(uint32_t flags, PhysicsEngine* engine);
+    virtual void handleHardAndEasyChanges(uint32_t flags, PhysicsEngine* engine);
 
     virtual void updateBodyMaterialProperties();
     virtual void updateBodyVelocities();