Big update.

src/strategy/values/NewPlayerNearbyValue.cpp

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license, you may redistribute it and/or modify it under version 2 of the License, or (at your option), any later version.
+ */
+
+#include "NewPlayerNearbyValue.h"
+#include "Playerbots.h"
+
+ObjectGuid NewPlayerNearbyValue::Calculate()
+{
+    GuidVector players = botAI->GetAiObjectContext()->GetValue<GuidVector>("nearest friendly players")->Get();
+    GuidSet& alreadySeenPlayers = botAI->GetAiObjectContext()->GetValue<GuidSet&>("already seen players")->Get();
+    for (ObjectGuid const guid : players)
+    {
+        if (alreadySeenPlayers.find(guid) == alreadySeenPlayers.end())
+            return guid;
+    }
+
+    return ObjectGuid::Empty;
+}