111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
/*
|
|
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Affero General Public License as published by the
|
|
* Free Software Foundation; either version 3 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 Affero 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 ACORE_TARGETEDMOVEMENTGENERATOR_H
|
|
#define ACORE_TARGETEDMOVEMENTGENERATOR_H
|
|
|
|
#include "FollowerReference.h"
|
|
#include "MovementGenerator.h"
|
|
#include "Optional.h"
|
|
#include "PathGenerator.h"
|
|
#include "Timer.h"
|
|
#include "Unit.h"
|
|
|
|
class TargetedMovementGeneratorBase
|
|
{
|
|
public:
|
|
TargetedMovementGeneratorBase(Unit* target) { i_target.link(target, this); }
|
|
void stopFollowing() { }
|
|
protected:
|
|
FollowerReference i_target;
|
|
};
|
|
|
|
template<class T>
|
|
class ChaseMovementGenerator : public MovementGeneratorMedium<T, ChaseMovementGenerator<T>>, public TargetedMovementGeneratorBase
|
|
{
|
|
public:
|
|
ChaseMovementGenerator(Unit* target, Optional<ChaseRange> range = {}, Optional<ChaseAngle> angle = {})
|
|
: TargetedMovementGeneratorBase(target), i_path(nullptr), i_recheckDistance(0), i_recalculateTravel(true), _range(range), _angle(angle) {}
|
|
~ChaseMovementGenerator() { }
|
|
|
|
MovementGeneratorType GetMovementGeneratorType() { return CHASE_MOTION_TYPE; }
|
|
|
|
bool DoUpdate(T*, uint32);
|
|
void DoInitialize(T*);
|
|
void DoFinalize(T*);
|
|
void DoReset(T*);
|
|
void MovementInform(T*);
|
|
|
|
bool PositionOkay(T* owner, Unit* target, Optional<float> maxDistance, Optional<ChaseAngle> angle);
|
|
|
|
void unitSpeedChanged() { _lastTargetPosition.reset(); }
|
|
Unit* GetTarget() const { return i_target.getTarget(); }
|
|
|
|
bool EnableWalking() const { return false; }
|
|
bool HasLostTarget(Unit* unit) const { return unit->GetVictim() != this->GetTarget(); }
|
|
|
|
private:
|
|
std::unique_ptr<PathGenerator> i_path;
|
|
TimeTrackerSmall i_recheckDistance;
|
|
bool i_recalculateTravel;
|
|
|
|
Optional<Position> _lastTargetPosition;
|
|
Optional<ChaseRange> const _range;
|
|
Optional<ChaseAngle> const _angle;
|
|
bool _movingTowards = true;
|
|
bool _mutualChase = true;
|
|
};
|
|
|
|
template<class T>
|
|
class FollowMovementGenerator : public MovementGeneratorMedium<T, FollowMovementGenerator<T>>, public TargetedMovementGeneratorBase
|
|
{
|
|
public:
|
|
FollowMovementGenerator(Unit* target, float range, ChaseAngle angle)
|
|
: TargetedMovementGeneratorBase(target), i_path(nullptr), i_recheckPredictedDistanceTimer(0), i_recheckPredictedDistance(false), _range(range), _angle(angle) {}
|
|
~FollowMovementGenerator() { }
|
|
|
|
MovementGeneratorType GetMovementGeneratorType() { return FOLLOW_MOTION_TYPE; }
|
|
|
|
bool DoUpdate(T*, uint32);
|
|
void DoInitialize(T*);
|
|
void DoFinalize(T*);
|
|
void DoReset(T*);
|
|
void MovementInform(T*);
|
|
|
|
Unit* GetTarget() const { return i_target.getTarget(); }
|
|
|
|
void unitSpeedChanged() { _lastTargetPosition.reset(); }
|
|
|
|
bool PositionOkay(Unit* target, bool isPlayerPet, bool& targetIsMoving, uint32 diff);
|
|
|
|
static void _clearUnitStateMove(T* u) { u->ClearUnitState(UNIT_STATE_FOLLOW_MOVE); }
|
|
static void _addUnitStateMove(T* u) { u->AddUnitState(UNIT_STATE_FOLLOW_MOVE); }
|
|
|
|
float GetFollowRange() const { return _range; }
|
|
|
|
private:
|
|
std::unique_ptr<PathGenerator> i_path;
|
|
TimeTrackerSmall i_recheckPredictedDistanceTimer;
|
|
bool i_recheckPredictedDistance;
|
|
|
|
Optional<Position> _lastTargetPosition;
|
|
Optional<Position> _lastPredictedPosition;
|
|
float _range;
|
|
ChaseAngle _angle;
|
|
};
|
|
|
|
#endif
|