Big update.

src/strategy/Trigger.h

@@ -0,0 +1,69 @@
+/*
+ * 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_TRIGGER_H
+#define _PLAYERBOT_TRIGGER_H
+
+#include "Common.h"
+#include "Action.h"
+
+class PlayerbotAI;
+class Unit;
+
+class Trigger : public AiNamedObject
+{
+	public:
+        Trigger(PlayerbotAI* botAI, std::string const name = "trigger", int32 checkInterval = 1);
+
+        virtual ~Trigger() { }
+
+        virtual Event Check();
+        virtual void ExternalEvent(std::string const param, Player* owner = nullptr) { }
+        virtual void ExternalEvent(WorldPacket& packet, Player* owner = nullptr) { }
+        virtual bool IsActive() { return false; }
+        virtual NextAction** getHandlers() { return nullptr; }
+        void Update() { }
+        virtual void Reset() { }
+        virtual Unit* GetTarget();
+        virtual Value<Unit*>* GetTargetValue();
+        virtual std::string const GetTargetName() { return "self target"; }
+
+		bool needCheck();
+
+    protected:
+		int32 checkInterval;
+		time_t lastCheckTime;
+};
+
+class TriggerNode
+{
+    public:
+        TriggerNode(std::string const name, NextAction** handlers = nullptr) : name(name), handlers(handlers), trigger(nullptr) { }
+
+        virtual ~TriggerNode()
+        {
+            NextAction::destroy(handlers);
+        }
+
+        Trigger* getTrigger() { return trigger; }
+        void setTrigger(Trigger* trigger) { this->trigger = trigger; }
+        std::string const getName() { return name; }
+
+        NextAction** getHandlers()
+        {
+            return NextAction::merge(NextAction::clone(handlers), trigger->getHandlers());
+        }
+
+        float getFirstRelevance()
+        {
+            return handlers[0] ? handlers[0]->getRelevance() : -1;
+        }
+
+    private:
+        Trigger* trigger;
+        NextAction** handlers;
+        std::string const name;
+};
+
+#endif