AreaTrigger.h

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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/>.
 */
 
#ifndef TRINITYCORE_AREATRIGGER_H
#define TRINITYCORE_AREATRIGGER_H
 
#include "Object.h"
#include "GridObject.h"
#include "MapObject.h"
#include "AreaTriggerTemplate.h"
 
class AuraEffect;
class AreaTriggerAI;
class SpellInfo;
class Unit;
 
namespace G3D
{
 class Vector2;
 class Vector3;
}
namespace Movement
{
 template<typename length_type>
 class Spline;
}
 
class TC_GAME_API AreaTrigger final : public WorldObject, public GridObject<AreaTrigger>, public MapObject
{
 public:
 AreaTrigger();
 ~AreaTrigger();
 
 protected:
 void BuildValuesCreate(ByteBuffer* data, Player const* target) const override;
 void BuildValuesUpdate(ByteBuffer* data, Player const* target) const override;
 void ClearUpdateMask(bool remove) override;
 
 public:
 void BuildValuesUpdateForPlayerWithMask(UpdateData* data, UF::ObjectData::Mask const& requestedObjectMask,
 UF::AreaTriggerData::Mask const& requestedAreaTriggerMask, Player const* target) const;
 
 struct ValuesUpdateForPlayerWithMaskSender // sender compatible with MessageDistDeliverer
 {
 explicit ValuesUpdateForPlayerWithMaskSender(AreaTrigger const* owner) : Owner(owner) { }
 
 AreaTrigger const* Owner;
 UF::ObjectData::Base ObjectMask;
 UF::AreaTriggerData::Base AreaTriggerMask;
 
 void operator()(Player const* player) const;
 };
 
 void AddToWorld() override;
 void RemoveFromWorld() override;
 
 void AI_Initialize();
 void AI_Destroy();
 
 AreaTriggerAI* AI() { return _ai.get(); }
 
 bool IsCustom() const { return _areaTriggerTemplate->Id.IsCustom; }
 bool IsServerSide() const { return _areaTriggerTemplate->Flags.HasFlag(AreaTriggerFlag::IsServerSide); }
 bool IsStaticSpawn() const { return _spawnId != 0; }
 
 bool IsNeverVisibleFor(WorldObject const* seer, bool allowServersideObjects = false) const override;
 
 float GetStationaryX() const override { return _stationaryPosition.GetPositionX(); }
 float GetStationaryY() const override { return _stationaryPosition.GetPositionY(); }
 float GetStationaryZ() const override { return _stationaryPosition.GetPositionZ(); }
 float GetStationaryO() const override { return _stationaryPosition.GetOrientation(); }
 void RelocateStationaryPosition(Position const& pos) { _stationaryPosition.Relocate(pos); }
 
 private:
 bool Create(AreaTriggerCreatePropertiesId areaTriggerCreatePropertiesId, Map* map, Position const& pos, int32 duration, AreaTriggerSpawn const* spawnData = nullptr, Unit* caster = nullptr, Unit* target = nullptr, SpellCastVisual spellVisual = { 0, 0 }, SpellInfo const* spellInfo = nullptr, Spell* spell = nullptr, AuraEffect const* aurEff = nullptr);
 
 public:
 static AreaTrigger* CreateAreaTrigger(AreaTriggerCreatePropertiesId areaTriggerCreatePropertiesId, Position const& pos, int32 duration, Unit* caster, Unit* target, SpellCastVisual spellVisual = { 0, 0 }, SpellInfo const* spellInfo = nullptr, Spell* spell = nullptr, AuraEffect const* aurEff = nullptr);
 static ObjectGuid CreateNewMovementForceId(Map* map, uint32 areaTriggerId);
 bool LoadFromDB(ObjectGuid::LowType spawnId, Map* map, bool addToMap, bool allowDuplicate);
 
 void Update(uint32 diff) override;
 void Remove();
 bool IsRemoved() const { return _isRemoved; }
 uint32 GetSpellId() const { return m_areaTriggerData->SpellID; }
 AuraEffect const* GetAuraEffect() const { return _aurEff; }
 uint32 GetTimeSinceCreated() const { return _timeSinceCreated; }
 
 void SetHeightIgnoresScale(bool heightIgnoresScale) { SetUpdateFieldValue(m_values.ModifyValue(&AreaTrigger::m_areaTriggerData).ModifyValue(&UF::AreaTriggerData::HeightIgnoresScale), heightIgnoresScale); }
 
 void SetOverrideScaleCurve(float overrideScale);
 void SetOverrideScaleCurve(std::array<DBCPosition2D, 2> const& points, Optional<uint32> startTimeOffset = {}, CurveInterpolationMode interpolation = CurveInterpolationMode::Linear);
 void ClearOverrideScaleCurve();
 
 void SetExtraScaleCurve(float extraScale);
 void SetExtraScaleCurve(std::array<DBCPosition2D, 2> const& points, Optional<uint32> startTimeOffset = {}, CurveInterpolationMode interpolation = CurveInterpolationMode::Linear);
 void ClearExtraScaleCurve();
 
 void SetOverrideMoveCurve(float x, float y, float z);
 void SetOverrideMoveCurve(std::array<DBCPosition2D, 2> const& xCurvePoints, std::array<DBCPosition2D, 2> const& yCurvePoints, std::array<DBCPosition2D, 2> const& zCurvePoints,
 Optional<uint32> startTimeOffset = {}, CurveInterpolationMode interpolation = CurveInterpolationMode::Linear);
 void ClearOverrideMoveCurve();
 
 uint32 GetTimeToTarget() const { return m_areaTriggerData->TimeToTarget; }
 void SetTimeToTarget(uint32 timeToTarget) { SetUpdateFieldValue(m_values.ModifyValue(&AreaTrigger::m_areaTriggerData).ModifyValue(&UF::AreaTriggerData::TimeToTarget), timeToTarget); }
 
 uint32 GetTimeToTargetScale() const { return m_areaTriggerData->TimeToTargetScale; }
 void SetTimeToTargetScale(uint32 timeToTargetScale) { SetUpdateFieldValue(m_values.ModifyValue(&AreaTrigger::m_areaTriggerData).ModifyValue(&UF::AreaTriggerData::TimeToTargetScale), timeToTargetScale); }
 
 uint32 GetTimeToTargetExtraScale() const { return m_areaTriggerData->TimeToTargetExtraScale; }
 void SetTimeToTargetExtraScale(uint32 timeToTargetExtraScale) { SetUpdateFieldValue(m_values.ModifyValue(&AreaTrigger::m_areaTriggerData).ModifyValue(&UF::AreaTriggerData::TimeToTargetExtraScale), timeToTargetExtraScale); }
 
 uint32 GetTimeToTargetPos() const { return m_areaTriggerData->TimeToTargetPos; }
 void SetTimeToTargetPos(uint32 timeToTargetPos) { SetUpdateFieldValue(m_values.ModifyValue(&AreaTrigger::m_areaTriggerData).ModifyValue(&UF::AreaTriggerData::TimeToTargetPos), timeToTargetPos); }
 
 int32 GetDuration() const { return _duration; }
 int32 GetTotalDuration() const { return _totalDuration; }
 void SetDuration(int32 newDuration);
 void Delay(int32 delaytime) { SetDuration(GetDuration() - delaytime); }
 
 GuidUnorderedSet const& GetInsideUnits() const { return _insideUnits; }
 
 AreaTriggerCreateProperties const* GetCreateProperties() const { return _areaTriggerCreateProperties; }
 AreaTriggerTemplate const* GetTemplate() const;
 uint32 GetScriptId() const;
 
 ObjectGuid GetCreatorGUID() const override { return GetCasterGuid(); }
 ObjectGuid GetOwnerGUID() const override { return GetCasterGuid(); }
 ObjectGuid const& GetCasterGuid() const { return m_areaTriggerData->Caster; }
 Unit* GetCaster() const;
 Unit* GetTarget() const;
 
 uint32 GetFaction() const override;
 
 AreaTriggerShapeInfo const& GetShape() const { return _shape; }
 float GetMaxSearchRadius() const;
 Position const& GetRollPitchYaw() const { return _rollPitchYaw; }
 Position const& GetTargetRollPitchYaw() const { return _targetRollPitchYaw; }
 void InitSplineOffsets(std::vector<Position> const& offsets, uint32 timeToTarget);
 void InitSplines(std::vector<G3D::Vector3> splinePoints, uint32 timeToTarget);
 bool HasSplines() const;
 ::Movement::Spline<int32> const& GetSpline() const { return *_spline; }
 uint32 GetElapsedTimeForMovement() const { return GetTimeSinceCreated(); } 
 
 void InitOrbit(AreaTriggerOrbitInfo const& orbit, uint32 timeToTarget);
 bool HasOrbit() const;
 Optional<AreaTriggerOrbitInfo> const& GetOrbit() const { return _orbitInfo; }
 
 bool HasOverridePosition() const;
 
 void UpdateShape();
 
 UF::UpdateField<UF::AreaTriggerData, 0, TYPEID_AREATRIGGER> m_areaTriggerData;
 
 protected:
 void _UpdateDuration(int32 newDuration);
 
 float CalcCurrentScale() const;
 
 float GetProgress() const;
 
 float GetScaleCurveProgress(UF::ScaleCurve const& scaleCurve, uint32 timeTo) const;
 float GetScaleCurveValueAtProgress(UF::ScaleCurve const& scaleCurve, float x) const;
 float GetScaleCurveValue(UF::ScaleCurve const& scaleCurve, uint32 timeTo) const;
 void SetScaleCurve(UF::MutableFieldReference<UF::ScaleCurve, false> scaleCurveMutator, float constantValue);
 void SetScaleCurve(UF::MutableFieldReference<UF::ScaleCurve, false> scaleCurveMutator, std::array<DBCPosition2D, 2> const& points, Optional<uint32> startTimeOffset, CurveInterpolationMode interpolation);
 void ClearScaleCurve(UF::MutableFieldReference<UF::ScaleCurve, false> scaleCurveMutator);
 void SetScaleCurve(UF::MutableFieldReference<UF::ScaleCurve, false> scaleCurveMutator, Optional<AreaTriggerScaleCurveTemplate> const& curve);
 
 void UpdateTargetList();
 void SearchUnits(std::vector<Unit*>& targetList, float radius, bool check3D);
 void SearchUnitInSphere(std::vector<Unit*>& targetList);
 void SearchUnitInBox(std::vector<Unit*>& targetList);
 void SearchUnitInPolygon(std::vector<Unit*>& targetList);
 void SearchUnitInCylinder(std::vector<Unit*>& targetList);
 void SearchUnitInDisk(std::vector<Unit*>& targetList);
 void SearchUnitInBoundedPlane(std::vector<Unit*>& targetList);
 bool CheckIsInPolygon2D(Position const* pos) const;
 void HandleUnitEnterExit(std::vector<Unit*> const& targetList);
 
 void DoActions(Unit* unit);
 void UndoActions(Unit* unit);
 
 void UpdatePolygonVertices();
 void UpdateOrbitPosition(uint32 diff);
 void UpdateSplinePosition(uint32 diff);
 void UpdateOverridePosition();
 
 Position const* GetOrbitCenterPosition() const;
 Position CalculateOrbitPosition() const;
 
 void DebugVisualizePosition(); // Debug purpose only
 
 ObjectGuid::LowType _spawnId;
 
 ObjectGuid _targetGuid;
 
 AuraEffect const* _aurEff;
 
 Position _stationaryPosition;
 AreaTriggerShapeInfo _shape;
 int32 _duration;
 int32 _totalDuration;
 uint32 _timeSinceCreated;
 float _verticesUpdatePreviousOrientation;
 bool _isRemoved;
 
 Position _rollPitchYaw;
 Position _targetRollPitchYaw;
 std::vector<Position> _polygonVertices;
 std::unique_ptr<::Movement::Spline<int32>> _spline;
 
 bool _reachedDestination;
 int32 _lastSplineIndex;
 uint32 _movementTime;
 
 Optional<AreaTriggerOrbitInfo> _orbitInfo;
 
 AreaTriggerCreateProperties const* _areaTriggerCreateProperties;
 AreaTriggerTemplate const* _areaTriggerTemplate;
 GuidUnorderedSet _insideUnits;
 
 std::unique_ptr<AreaTriggerAI> _ai;
};
 
#endif