[9266] Implement CMSG_CORPSE_MAP_POSITION_QUERY opcode.

* Send coordinates of corpse on world map, if outside instance.
* Send coordinates of instance entrance, if inside instance.

Thanks to Ceris and Lightguard for helping with research/code.

src/game/QueryHandler.cpp

@@ -314,7 +314,7 @@ void WorldSession::HandleCorpseQueryOpcode(WorldPacket & /*recv_data*/)
     data << float(y);
     data << float(z);
     data << int32(corpsemapid);
-    data << uint32(0);                                      // unknown
+    data << uint32(corpse->GetGUIDLow());
     SendPacket(&data);
 }
 
@@ -455,14 +455,74 @@ void WorldSession::HandleCorpseMapPositionQuery( WorldPacket & recv_data )
 {
     sLog.outDebug( "WORLD: Recv CMSG_CORPSE_MAP_POSITION_QUERY" );
 
-    uint32 unk;
-    recv_data >> unk;
+    uint32 lowGuid;
+    recv_data >> lowGuid;                                   // not needed
+
+    Player* player = _player;
+    Corpse* corpse = player->GetCorpse();
+    if (!corpse)
+        return;
 
     WorldPacket data(CMSG_CORPSE_MAP_POSITION_QUERY_RESPONSE, 4+4+4+4);
-    data << float(0);
-    data << float(0);
-    data << float(0);
-    data << float(0);
+
+    Map* map = corpse->GetMap();
+
+    float cx, cy, cz;
+
+    if (map->IsDungeon())
+    {
+        int32 mapId;
+        float mx, my;
+        map->GetEntrancePos(mapId, mx, my);
+
+        const Map* newMap = sMapMgr.CreateBaseMap(mapId);
+        uint32 zoneId = newMap->GetZoneId(mx, my, 0);
+
+        float _mx = mx;
+        float _my = my;
+        Map2ZoneCoordinates(mx, my, zoneId);
+
+        float x = corpse->GetPositionX();
+        float y = corpse->GetPositionY();
+        Map2ZoneCoordinates(x, y, zoneId);
+
+        cx = x - mx;
+        cy = y - my;
+        cz = corpse->GetPositionZ() - map->GetHeight(_mx, _my, MAX_HEIGHT);
+    }
+    else
+    {
+        WorldSafeLocsEntry const *ClosestGrave = NULL;
+
+        // Special handle for battleground maps
+        if (BattleGround *bg = player->GetBattleGround())
+            ClosestGrave = bg->GetClosestGraveYard(player);
+        else
+            ClosestGrave = sObjectMgr.GetClosestGraveYard(player->GetPositionX(), player->GetPositionY(), player->GetPositionZ(), player->GetMapId(), player->GetTeam());
+
+        if (!ClosestGrave)
+            return;
+
+        uint32 zoneId = corpse->GetZoneId();
+
+        float gx = ClosestGrave->x;
+        float gy = ClosestGrave->y;
+        Map2ZoneCoordinates(gx, gy, zoneId);
+
+        float x = corpse->GetPositionX();
+        float y = corpse->GetPositionY();
+        Map2ZoneCoordinates(x, y, zoneId);
+
+        cx = x - gx;
+        cy = y - gy;
+        cz = corpse->GetPositionZ() - ClosestGrave->z;
+    }
+
+    data << float(cx);
+    data << float(cy);
+    data << float(cz);
+    data << float(0);                                       // unknown
+
     SendPacket(&data);
 }
 

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "9265"
+ #define REVISION_NR "9266"
 #endif // __REVISION_NR_H__