Core/Network: Optimized packet sending by removing unneccessary memory copying

1 files changed, 5 insertions, 1 deletions

diff --git a/src/server/game/Handlers/CombatHandler.cpp b/src/server/game/Handlers/CombatHandler.cpp
index 47ffc2578bd..e4d749d9ab0 100644
--- a/src/server/game/Handlers/CombatHandler.cpp
+++ b/src/server/game/Handlers/CombatHandler.cpp
@@ -93,7 +93,11 @@ void WorldSession::SendAttackStop(Unit const* enemy)
 {
     WorldPacket data(SMSG_ATTACKSTOP, (8+8+4));             // we guess size
     data.append(GetPlayer()->GetPackGUID());
-    data.append(enemy ? enemy->GetPackGUID() : 0);          // must be packed guid
+    if (enemy)
+        data.append(enemy->GetPackGUID());
+    else
+        data << uint8(0);
+
     data << uint32(0);                                      // unk, can be 1 also
     SendPacket(&data);
 }