Big update.

src/strategy/values/LineTargetValue.cpp

@@ -0,0 +1,34 @@
+/*
+ * 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 "LineTargetValue.h"
+#include "Playerbots.h"
+
+Unit* LineTargetValue::Calculate()
+{
+    Player* master = GetMaster();
+    if (!master)
+        return nullptr;
+
+    Group* group = master->GetGroup();
+    if (!group)
+        return nullptr;
+
+    Player *prev = master;
+    Group::MemberSlotList const& groupSlot = group->GetMemberSlots();
+    for (Group::member_citerator itr = groupSlot.begin(); itr != groupSlot.end(); itr++)
+    {
+        Player *player = ObjectAccessor::FindPlayer(itr->guid);
+        if (!player || !player->IsAlive() || player == master)
+            continue;
+
+        if (player == bot)
+            return prev;
+
+        prev = player;
+    }
+
+    return master;
+}
+