[9012] fix crash when achievement is completed and player isn't in world

--HG--
branch : trunk

src/game/AchievementMgr.cpp

@@ -592,7 +592,8 @@ void AchievementMgr::SendAchievementEarned(AchievementEntry const* achievement)
         data << uint32(0);                                  // 1=link supplied string as player name, 0=display plain string
         sWorld.SendGlobalMessage(&data);
     }
-    else
+    // if player is in world he can tell his friends about new achievement
+    else if (GetPlayer()->IsInWorld())
     {
         CellPair p = MaNGOS::ComputeCellPair(GetPlayer()->GetPositionX(), GetPlayer()->GetPositionY());
 

src/game/LootHandler.cpp

@@ -222,7 +222,7 @@ void WorldSession::HandleLootMoneyOpcode( WorldPacket & /*recv_data*/ )
                 Player* playerGroup = itr->getSource();
                 if(!playerGroup)
                     continue;
-                if (player->IsWithinDist(playerGroup,sWorld.getConfig(CONFIG_GROUP_XP_DISTANCE),false))
+                if (player->IsWithinDistInMap(playerGroup,sWorld.getConfig(CONFIG_GROUP_XP_DISTANCE),false))
                     playersNear.push_back(playerGroup);
             }
 

src/game/MiscHandler.cpp

@@ -736,7 +736,7 @@ void WorldSession::HandleReclaimCorpseOpcode(WorldPacket &recv_data)
     if(corpse->GetGhostTime() + GetPlayer()->GetCorpseReclaimDelay(corpse->GetType()==CORPSE_RESURRECTABLE_PVP) > time(NULL))
         return;
 
-    if (!corpse->IsWithinDist(GetPlayer(), CORPSE_RECLAIM_RADIUS, true))
+    if (!corpse->IsWithinDistInMap(GetPlayer(), CORPSE_RECLAIM_RADIUS, true))
         return;
 
     uint64 guid;

src/game/Object.cpp

@@ -1398,6 +1398,16 @@ bool WorldObject::IsInBetween(const WorldObject *obj1, const WorldObject *obj2,
     return abs(sin(angle)) * GetExactDist2d(obj1->GetPositionX(), obj1->GetPositionY()) < size;
 }
 
+bool WorldObject::isInFront(WorldObject const* target, float distance,  float arc) const
+{
+    return IsWithinDist(target, distance) && HasInArc( arc, target );
+}
+
+bool WorldObject::isInBack(WorldObject const* target, float distance, float arc) const
+{
+    return IsWithinDist(target, distance) && !HasInArc( 2 * M_PI - arc, target );
+}
+
 void WorldObject::GetRandomPoint(const Position &pos, float distance, float &rand_x, float &rand_y, float &rand_z) const
 {
     if(!distance)

src/game/Object.h

@@ -548,6 +548,8 @@ class TRINITY_DLL_SPEC WorldObject : public Object, public WorldLocation
         bool IsInRange(WorldObject const* obj, float minRange, float maxRange, bool is3D = true) const;
         bool IsInRange2d(float x, float y, float minRange, float maxRange) const;
         bool IsInRange3d(float x, float y, float z, float minRange, float maxRange) const;
+        bool isInFront(WorldObject const* target,float distance, float arc = M_PI) const;
+        bool isInBack(WorldObject const* target, float distance, float arc = M_PI) const;
 
         bool IsInBetween(const WorldObject *obj1, const WorldObject *obj2, float size = 0) const;
 

src/game/Spell.h

@@ -734,11 +734,11 @@ namespace Trinity
                             i_data->push_back(target);
                         break;
                     case PUSH_IN_FRONT:
-                        if(i_source->isInFrontInMap(target, i_radius, M_PI/3))
+                        if(i_source->isInFront(target, i_radius, M_PI/3))
                             i_data->push_back(target);
                         break;
                     case PUSH_IN_BACK:
-                        if(i_source->isInBackInMap(target, i_radius, M_PI/3))
+                        if(i_source->isInBack(target, i_radius, M_PI/3))
                             i_data->push_back(target);
                         break;
                     case PUSH_IN_LINE: