WaypointMovementGenerator.h

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/*
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef TRINITY_WAYPOINTMOVEMENTGENERATOR_H
#define TRINITY_WAYPOINTMOVEMENTGENERATOR_H

#include "MovementGenerator.h"
#include "WaypointManager.h"
#include "Player.h"

#define FLIGHT_TRAVEL_UPDATE 100
#define STOP_TIME_FOR_PLAYER 3 * MINUTE * IN_MILLISECONDS // 3 Minutes
#define TIMEDIFF_NEXT_WP 250

template<class T, class P>
class PathMovementBase
{
 public:
 PathMovementBase() : i_path(), i_currentNode(0) { }
 virtual ~PathMovementBase() { };

 uint32 GetCurrentNode() const { return i_currentNode; }

 protected:
 P i_path;
 uint32 i_currentNode;
};

template<class T>
class WaypointMovementGenerator;

template<>
class WaypointMovementGenerator<Creature> : public MovementGeneratorMedium< Creature, WaypointMovementGenerator<Creature> >,
 public PathMovementBase<Creature, WaypointPath const*>
{
 public:
 WaypointMovementGenerator(uint32 _path_id = 0, bool _repeating = true)
 : i_nextMoveTime(0), m_isArrivalDone(false), path_id(_path_id), repeating(_repeating) { }
 ~WaypointMovementGenerator() { i_path = NULL; }
 void DoInitialize(Creature*);
 void DoFinalize(Creature*);
 void DoReset(Creature*);
 bool DoUpdate(Creature*, uint32 diff);

 void MovementInform(Creature*);

 MovementGeneratorType GetMovementGeneratorType() const override { return WAYPOINT_MOTION_TYPE; }

 // now path movement implmementation
 void LoadPath(Creature*);

 bool GetResetPos(Creature*, float& x, float& y, float& z);

 private:

 void Stop(int32 time) { i_nextMoveTime.Reset(time);}

 bool Stopped() { return !i_nextMoveTime.Passed();}

 bool CanMove(int32 diff)
 {
 i_nextMoveTime.Update(diff);
 return i_nextMoveTime.Passed();
 }

 void OnArrived(Creature*);
 bool StartMove(Creature*);

 void StartMoveNow(Creature* creature)
 {
 i_nextMoveTime.Reset(0);
 StartMove(creature);
 }

 TimeTrackerSmall i_nextMoveTime;
 bool m_isArrivalDone;
 uint32 path_id;
 bool repeating;
};

class FlightPathMovementGenerator : public MovementGeneratorMedium< Player, FlightPathMovementGenerator >,
 public PathMovementBase<Player, TaxiPathNodeList>
{
 public:
 explicit FlightPathMovementGenerator()
 {
 i_currentNode = 0;
 _endGridX = 0.0f;
 _endGridY = 0.0f;
 _endMapId = 0;
 _preloadTargetNode = 0;
 }
 void LoadPath(Player* player, uint32 startNode = 0);
 void DoInitialize(Player*);
 void DoReset(Player*);
 void DoFinalize(Player*);
 bool DoUpdate(Player*, uint32);
 MovementGeneratorType GetMovementGeneratorType() const override { return FLIGHT_MOTION_TYPE; }

 TaxiPathNodeList const& GetPath() { return i_path; }
 uint32 GetPathAtMapEnd() const;
 bool HasArrived() const { return (i_currentNode >= i_path.size()); }
 void SetCurrentNodeAfterTeleport();
 void SkipCurrentNode() { ++i_currentNode; }
 void DoEventIfAny(Player* player, TaxiPathNodeEntry const* node, bool departure);

 bool GetResetPos(Player*, float& x, float& y, float& z);

 void InitEndGridInfo();
 void PreloadEndGrid();

 private:

 float _endGridX; 
 float _endGridY; 
 uint32 _endMapId; 
 uint32 _preloadTargetNode; 

 struct TaxiNodeChangeInfo
 {
 uint32 PathIndex;
 int32 Cost;
 };

 std::deque<TaxiNodeChangeInfo> _pointsForPathSwitch; 
};
#endif