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/*
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* Copyright (C) 2008-2009 Trinity <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef TRINITY_DESTINATION_HOLDER_H
#define TRINITY_DESTINATION_HOLDER_H
#include "Platform/Define.h"
#include "Timer.h"
class WorldObject;
#define TRAVELLER_UPDATE_INTERVAL 300
template<typename TRAVELLER>
class TRINITY_DLL_DECL DestinationHolder
{
TimeTrackerSmall i_tracker;
uint32 i_totalTravelTime;
uint32 i_timeElapsed;
bool i_destSet;
float i_fromX, i_fromY, i_fromZ;
float i_destX, i_destY, i_destZ;
public:
DestinationHolder() : i_tracker(TRAVELLER_UPDATE_INTERVAL), i_totalTravelTime(0), i_timeElapsed(0),
i_destSet(false), i_fromX(0), i_fromY(0), i_fromZ(0), i_destX(0), i_destY(0), i_destZ(0) {}
uint32 SetDestination(TRAVELLER &traveller, float dest_x, float dest_y, float dest_z, bool sendMove = true);
void GetDestination(float &x, float &y, float &z) const { x = i_destX; y = i_destY; z = i_destZ; }
bool UpdateExpired(void) const { return i_tracker.Passed(); }
void ResetUpdate(uint32 t = TRAVELLER_UPDATE_INTERVAL) { i_tracker.Reset(t); }
uint32 GetTotalTravelTime(void) const { return i_totalTravelTime; }
void IncreaseTravelTime(uint32 increment) { i_totalTravelTime += increment; }
bool HasDestination(void) const { return i_destSet; }
float GetDestinationDiff(float x, float y, float z) const;
bool HasArrived(void) const { return (i_totalTravelTime == 0 || i_timeElapsed >= i_totalTravelTime); }
bool UpdateTraveller(TRAVELLER &traveller, uint32 diff, bool force_update=false, bool micro_movement=false);
uint32 StartTravel(TRAVELLER &traveller, bool sendMove = true);
void GetLocationNow(uint32 mapid, float &x, float &y, float &z, bool is3D = false) const;
void GetLocationNowNoMicroMovement(float &x, float &y, float &z) const; // For use without micro movement
float GetDistance2dFromDestSq(const WorldObject &obj) const;
private:
void _findOffSetPoint(float x1, float y1, float x2, float y2, float offset, float &x, float &y);
};
#endif
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