[9435] Avoid useless creature running around at evade

* If creature near respawn point and by defult do random movement
  then restart from current point
* If creature have default waypoints movegen restart from last
  updated point. Not reload waypoints

src/game/HomeMovementGenerator.cpp

@@ -39,13 +39,13 @@ HomeMovementGenerator<Creature>::Reset(Creature &)
 void
 HomeMovementGenerator<Creature>::_setTargetLocation(Creature & owner)
 {
-    if( !&owner )
-        return;
-
-    if( owner.hasUnitState(UNIT_STAT_NOT_MOVE) )
+    if (owner.hasUnitState(UNIT_STAT_NOT_MOVE))
         return;
 
     float x, y, z;
+
+    // at apply we can select more nice return points base at current movegen
+    if (owner.GetMotionMaster()->empty() || !owner.GetMotionMaster()->top()->GetResetPosition(owner,x,y,z))
         owner.GetRespawnCoord(x, y, z);
 
     CreatureTraveller traveller(owner);

src/game/MovementGenerator.h

@@ -52,6 +52,9 @@ class MANGOS_DLL_SPEC MovementGenerator
         virtual void UpdateFinalDistance(float /*fDistance*/) { }
 
         virtual bool GetDestination(float& /*x*/, float& /*y*/, float& /*z*/) const { return false; }
+
+        // used by Evade code for select point to evade with expected restart default movement
+        virtual bool GetResetPosition(Unit &, float& /*x*/, float& /*y*/, float& /*z*/) { return false; }
 };
 
 template<class T, class D>
@@ -83,6 +86,11 @@ class MANGOS_DLL_SPEC MovementGeneratorMedium : public MovementGenerator
             //u->AssertIsType<T>();
             return (static_cast<D*>(this))->Update(*((T*)&u), time_diff);
         }
+        bool GetResetPosition(Unit& u, float& x, float& y, float& z)
+        {
+            //u->AssertIsType<T>();
+            return (static_cast<D*>(this))->GetResetPosition(*((T*)&u), x, y, z);
+        }
     public:
         // will not link if not overridden in the generators
         void Initialize(T &u);
@@ -90,6 +98,9 @@ class MANGOS_DLL_SPEC MovementGeneratorMedium : public MovementGenerator
         void Interrupt(T &u);
         void Reset(T &u);
         bool Update(T &u, const uint32 &time_diff);
+
+        // not need always overwrites
+        bool GetResetPosition(T& /*u*/, float& /*x*/, float& /*y*/, float& /*z*/) { return false; }
 };
 
 struct SelectableMovement : public FactoryHolder<MovementGenerator,MovementGeneratorType>

src/game/RandomMovementGenerator.cpp

@@ -137,15 +137,13 @@ void RandomMovementGenerator<Creature>::Interrupt(Creature &creature)
 }
 
 template<>
-void
-RandomMovementGenerator<Creature>::Finalize(Creature &creature)
+void RandomMovementGenerator<Creature>::Finalize(Creature &creature)
 {
     creature.clearUnitState(UNIT_STAT_ROAMING|UNIT_STAT_ROAMING_MOVE);
 }
 
 template<>
-bool
-RandomMovementGenerator<Creature>::Update(Creature &creature, const uint32 &diff)
+bool RandomMovementGenerator<Creature>::Update(Creature &creature, const uint32 &diff)
 {
     if (creature.hasUnitState(UNIT_STAT_NOT_MOVE))
     {
@@ -183,3 +181,16 @@ RandomMovementGenerator<Creature>::Update(Creature &creature, const uint32 &diff
     }
     return true;
 }
+
+template<>
+bool RandomMovementGenerator<Creature>::GetResetPosition(Creature& c, float& x, float& y, float& z)
+{
+    float radius;
+    c.GetRespawnCoord(x, y, z, NULL, &radius);
+
+    // use current if in range
+    if (c.IsWithinDist2d(x,y,radius))
+        c.GetPosition(x,y,z);
+
+    return true;
+}

src/game/RandomMovementGenerator.h

@@ -41,6 +41,8 @@ class MANGOS_DLL_SPEC RandomMovementGenerator
             i_destinationHolder.GetLocationNow(mapid, x,y,z);
         }
         MovementGeneratorType GetMovementGeneratorType() { return RANDOM_MOTION_TYPE; }
+
+        bool GetResetPosition(T&, float& x, float& y, float& z);
     private:
         TimeTrackerSmall i_nextMoveTime;
 

src/game/WaypointMovementGenerator.cpp

@@ -94,7 +94,6 @@ void WaypointMovementGenerator<Creature>::Interrupt( Creature &u )
 
 void WaypointMovementGenerator<Creature>::Reset( Creature &u )
 {
-    ReloadPath(u);
     b_StoppedByPlayer = false;
     i_nextMoveTime.Reset(0);
     u.addUnitState(UNIT_STAT_ROAMING|UNIT_STAT_ROAMING_MOVE);

src/game/WaypointMovementGenerator.h

@@ -54,6 +54,7 @@ class MANGOS_DLL_SPEC PathMovementBase
         uint32 GetCurrentNode() const { return i_currentNode; }
 
         bool GetDestination(float& x, float& y, float& z) const { i_destinationHolder.GetDestination(x,y,z); return true; }
+        bool GetPosition(float& x, float& y, float& z) const { i_destinationHolder.GetLocationNowNoMicroMovement(x,y,z); return true; }
     protected:
         uint32 i_currentNode;
         DestinationHolder< Traveller<T> > i_destinationHolder;
@@ -97,6 +98,11 @@ public PathMovementBase<Creature, WaypointPath const*>
         // allow use for overwrite empty implementation
         bool GetDestination(float& x, float& y, float& z) const { return PathMovementBase<Creature, WaypointPath const*>::GetDestination(x,y,z); }
 
+        bool GetResetPosition(Creature&, float& x, float& y, float& z)
+        {
+            return PathMovementBase<Creature, WaypointPath const*>::GetPosition(x,y,z);
+        }
+
     private:
         void ClearWaypoints();
 

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "9434"
+ #define REVISION_NR "9435"
 #endif // __REVISION_NR_H__