*Merge SD2.

*r1202: Added support for quest 12739(and 12742 to 12750). Patch by ckegg

*And merge a grid searcher from SD2.

--HG--
branch : trunk

src/bindings/scripts/include/sc_creature.cpp

@@ -742,3 +742,24 @@ void LoadOverridenDBCData()
         }
     }
 }
+
+
+Creature* GetClosestCreatureWithEntry(WorldObject* pSource, uint32 Entry, float MaxSearchRange)
+{
+    Creature* pCreature = NULL;
+
+    CellPair pair(Trinity::ComputeCellPair(pSource->GetPositionX(), pSource->GetPositionY()));
+    Cell cell(pair);
+    cell.data.Part.reserved = ALL_DISTRICT;
+    cell.SetNoCreate();
+
+    Trinity::NearestCreatureEntryWithLiveStateInObjectRangeCheck creature_check(*pSource, Entry, true, MaxSearchRange);
+    Trinity::CreatureLastSearcher<Trinity::NearestCreatureEntryWithLiveStateInObjectRangeCheck> searcher(pSource, pCreature, creature_check);
+
+    TypeContainerVisitor<Trinity::CreatureLastSearcher<Trinity::NearestCreatureEntryWithLiveStateInObjectRangeCheck>, GridTypeMapContainer> creature_searcher(searcher);
+
+    CellLock<GridReadGuard> cell_lock(cell, pair);
+    cell_lock->Visit(cell_lock, creature_searcher,*(pSource->GetMap()));
+
+    return pCreature;
+}

src/bindings/scripts/include/sc_creature.h

@@ -243,5 +243,11 @@ struct TRINITY_DLL_DECL BossAI : public ScriptedAI
         void TeleportCheaters();
 };
 
+// SD2's grid searchers
+
+//return closest creature alive in grid, with range from pSource
+Creature* GetClosestCreatureWithEntry(WorldObject* pSource, uint32 Entry, float MaxSearchRange);
+
+
 #endif