PointMovementGenerator.cpp

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/*
 * This file is part of the TrinityCore 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 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/>.
 */
 
#include "PointMovementGenerator.h"
#include "Creature.h"
#include "CreatureAI.h"
#include "Player.h"
#include "MotionMaster.h"
#include "MovementDefines.h"
#include "MoveSpline.h"
#include "MoveSplineInit.h"
#include "World.h"
 
//----- Point Movement Generator
 
template<class T>
PointMovementGenerator<T>::PointMovementGenerator(uint32 id, float x, float y, float z, bool generatePath, float speed, Optional<float> finalOrient) : _movementId(id), _x(x), _y(y), _z(z), _speed(speed), _generatePath(generatePath), _finalOrient(finalOrient)
{
    this->Priority = MOTION_PRIORITY_NORMAL;
    this->Flags = MOVEMENTGENERATOR_FLAG_INITIALIZATION_PENDING;
    this->BaseUnitState = UNIT_STATE_ROAMING;
}
 
template<class T>
MovementGeneratorType PointMovementGenerator<T>::GetMovementGeneratorType() const
{
    return POINT_MOTION_TYPE;
}
 
template<class T>
bool PointMovementGenerator<T>::DoInitialize(T* owner)
{
    MovementGenerator::RemoveFlag(MOVEMENTGENERATOR_FLAG_INITIALIZATION_PENDING | MOVEMENTGENERATOR_FLAG_TRANSITORY | MOVEMENTGENERATOR_FLAG_DEACTIVATED);
    MovementGenerator::AddFlag(MOVEMENTGENERATOR_FLAG_INITIALIZED);
 
    if (_movementId == EVENT_CHARGE_PREPATH)
    {
        owner->AddUnitState(UNIT_STATE_ROAMING_MOVE);
        return true;
    }
 
    if (owner->HasUnitState(UNIT_STATE_NOT_MOVE) || owner->IsMovementPreventedByCasting())
    {
        MovementGenerator::AddFlag(MOVEMENTGENERATOR_FLAG_INTERRUPTED);
        owner->StopMoving();
        return true;
    }
 
    owner->AddUnitState(UNIT_STATE_ROAMING_MOVE);
 
    Movement::MoveSplineInit init(owner);
    init.MoveTo(_x, _y, _z , _generatePath);
    if (_speed > 0.0f)
        init.SetVelocity(_speed);
 
    if (_finalOrient)
        init.SetFacing(*_finalOrient);
 
    init.Launch();
 
    // Call for creature group update
    if (Creature* creature = owner->ToCreature())
        creature->SignalFormationMovement();
    return true;
}
 
template<class T>
bool PointMovementGenerator<T>::DoReset(T* owner)
{
    MovementGenerator::RemoveFlag(MOVEMENTGENERATOR_FLAG_TRANSITORY | MOVEMENTGENERATOR_FLAG_DEACTIVATED);
 
    return DoInitialize(owner);
}
 
template<class T>
bool PointMovementGenerator<T>::DoUpdate(T* owner, uint32 /*diff*/)
{
    if (!owner)
        return false;
 
    if (_movementId == EVENT_CHARGE_PREPATH)
    {
        if (owner->movespline->Finalized())
        {
            MovementGenerator::AddFlag(MOVEMENTGENERATOR_FLAG_INFORM_ENABLED);
            return false;
        }
        return true;
    }
 
    if (owner->HasUnitState(UNIT_STATE_NOT_MOVE) || owner->IsMovementPreventedByCasting())
    {
        MovementGenerator::AddFlag(MOVEMENTGENERATOR_FLAG_INTERRUPTED);
        owner->StopMoving();
        return true;
    }
 
    if ((MovementGenerator::HasFlag(MOVEMENTGENERATOR_FLAG_INTERRUPTED) && owner->movespline->Finalized()) || (MovementGenerator::HasFlag(MOVEMENTGENERATOR_FLAG_SPEED_UPDATE_PENDING) && !owner->movespline->Finalized()))
    {
        MovementGenerator::RemoveFlag(MOVEMENTGENERATOR_FLAG_INTERRUPTED | MOVEMENTGENERATOR_FLAG_SPEED_UPDATE_PENDING);
 
        owner->AddUnitState(UNIT_STATE_ROAMING_MOVE);
 
        Movement::MoveSplineInit init(owner);
        init.MoveTo(_x, _y, _z, _generatePath);
        if (_speed > 0.0f) // Default value for point motion type is 0.0, if 0.0 spline will use GetSpeed on unit
            init.SetVelocity(_speed);
        init.Launch();
 
        // Call for creature group update
        if (Creature* creature = owner->ToCreature())
            creature->SignalFormationMovement();
    }
 
    if (owner->movespline->Finalized())
    {
        MovementGenerator::RemoveFlag(MOVEMENTGENERATOR_FLAG_TRANSITORY);
        MovementGenerator::AddFlag(MOVEMENTGENERATOR_FLAG_INFORM_ENABLED);
        return false;
    }
    return true;
}
 
template<class T>
void PointMovementGenerator<T>::DoDeactivate(T* owner)
{
    MovementGenerator::AddFlag(MOVEMENTGENERATOR_FLAG_DEACTIVATED);
    owner->ClearUnitState(UNIT_STATE_ROAMING_MOVE);
}
 
template<class T>
void PointMovementGenerator<T>::DoFinalize(T* owner, bool active, bool movementInform)
{
    MovementGenerator::AddFlag(MOVEMENTGENERATOR_FLAG_FINALIZED);
    if (active)
        owner->ClearUnitState(UNIT_STATE_ROAMING_MOVE);
 
    if (movementInform && MovementGenerator::HasFlag(MOVEMENTGENERATOR_FLAG_INFORM_ENABLED))
        MovementInform(owner);
}
 
template<class T>
void PointMovementGenerator<T>::MovementInform(T*) { }
 
template <>
void PointMovementGenerator<Creature>::MovementInform(Creature* owner)
{
    if (owner->AI())
        owner->AI()->MovementInform(POINT_MOTION_TYPE, _movementId);
}
 
template PointMovementGenerator<Player>::PointMovementGenerator(uint32, float, float, float, bool, float, Optional<float>);
template PointMovementGenerator<Creature>::PointMovementGenerator(uint32, float, float, float, bool, float, Optional<float>);
template MovementGeneratorType PointMovementGenerator<Player>::GetMovementGeneratorType() const;
template MovementGeneratorType PointMovementGenerator<Creature>::GetMovementGeneratorType() const;
template bool PointMovementGenerator<Player>::DoInitialize(Player*);
template bool PointMovementGenerator<Creature>::DoInitialize(Creature*);
template bool PointMovementGenerator<Player>::DoReset(Player*);
template bool PointMovementGenerator<Creature>::DoReset(Creature*);
template bool PointMovementGenerator<Player>::DoUpdate(Player*, uint32);
template bool PointMovementGenerator<Creature>::DoUpdate(Creature*, uint32);
template void PointMovementGenerator<Player>::DoDeactivate(Player*);
template void PointMovementGenerator<Creature>::DoDeactivate(Creature*);
template void PointMovementGenerator<Player>::DoFinalize(Player*, bool, bool);
template void PointMovementGenerator<Creature>::DoFinalize(Creature*, bool, bool);
 
//---- AssistanceMovementGenerator
 
void AssistanceMovementGenerator::Finalize(Unit* owner, bool active, bool movementInform)
{
    AddFlag(MOVEMENTGENERATOR_FLAG_FINALIZED);
    if (active)
        owner->ClearUnitState(UNIT_STATE_ROAMING_MOVE);
 
    if (movementInform && HasFlag(MOVEMENTGENERATOR_FLAG_INFORM_ENABLED))
    {
        Creature* ownerCreature = owner->ToCreature();
        ownerCreature->SetNoCallAssistance(false);
        ownerCreature->CallAssistance();
        if (ownerCreature->IsAlive())
            ownerCreature->GetMotionMaster()->MoveSeekAssistanceDistract(sWorld->getIntConfig(CONFIG_CREATURE_FAMILY_ASSISTANCE_DELAY));
    }
}
 
MovementGeneratorType AssistanceMovementGenerator::GetMovementGeneratorType() const
{
    return ASSISTANCE_MOTION_TYPE;
}