Big update.

src/strategy/values/NearestUnitsValue.h

@@ -0,0 +1,30 @@
+/*
+ * 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.
+ */
+
+#ifndef _PLAYERBOT_NEARESTUNITSVALUE_H
+#define _PLAYERBOT_NEARESTUNITSVALUE_H
+
+#include "Unit.h"
+#include "Value.h"
+#include "PlayerbotAIConfig.h"
+
+class PlayerbotAI;
+
+class NearestUnitsValue : public ObjectGuidListCalculatedValue
+{
+	public:
+        NearestUnitsValue(PlayerbotAI* botAI, std::string const name = "nearest units", float range = sPlayerbotAIConfig->sightDistance, bool ignoreLos = false) :
+            ObjectGuidListCalculatedValue(botAI, name, 2), range(range), ignoreLos(ignoreLos) { }
+
+        GuidVector Calculate() override;
+
+    protected:
+        virtual void FindUnits(std::list<Unit*>& targets) = 0;
+        virtual bool AcceptUnit(Unit* unit) = 0;
+
+        float range;
+        bool ignoreLos;
+};
+
+#endif