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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 TRANSPORTMGR_H
#define TRANSPORTMGR_H
#include "ObjectGuid.h"
#include "Optional.h"
#include "Position.h"
#include <map>
#include <memory>
#include <unordered_map>
struct GameObjectTemplate;
struct TaxiPathNodeEntry;
struct TransportAnimationEntry;
struct TransportRotationEntry;
struct TransportTemplate;
class Transport;
class Map;
namespace Movement
{
template <typename length_type> class Spline;
}
using TransportSpline = Movement::Spline<double>;
enum class TransportMovementState : uint8
{
Moving,
WaitingOnPauseWaypoint
};
// Represents a segment within path leg between stops
struct TransportPathSegment
{
uint32 SegmentEndArrivalTimestamp = 0;
uint32 Delay = 0;
double DistanceFromLegStartAtEnd = 0.0;
};
struct TransportPathEvent
{
uint32 Timestamp = 0;
uint32 EventId = 0;
};
// Represents a contignuous part of transport path (without map changes or teleports)
struct TransportPathLeg
{
TransportPathLeg();
~TransportPathLeg();
TransportPathLeg(TransportPathLeg const&) = delete;
TransportPathLeg(TransportPathLeg&&) noexcept;
TransportPathLeg& operator=(TransportPathLeg const&) = delete;
TransportPathLeg& operator=(TransportPathLeg&&) noexcept;
uint32 MapId = 0;
std::unique_ptr<TransportSpline> Spline;
uint32 StartTimestamp = 0;
uint32 Duration = 0;
std::vector<TransportPathSegment> Segments;
};
struct TransportTemplate
{
TransportTemplate();
~TransportTemplate();
TransportTemplate(TransportTemplate const&) = delete;
TransportTemplate(TransportTemplate&&) noexcept;
TransportTemplate& operator=(TransportTemplate const&) = delete;
TransportTemplate& operator=(TransportTemplate&&) noexcept;
uint32 TotalPathTime = 0;
double Speed = 0.0;
double AccelerationRate = 0.0;
double AccelerationTime = 0.0;
double AccelerationDistance = 0.0;
std::vector<TransportPathLeg> PathLegs;
std::vector<TransportPathEvent> Events;
Optional<Position> ComputePosition(uint32 time, TransportMovementState* moveState, size_t* legIndex) const;
TransportPathLeg const* GetLegForTime(uint32 time) const;
uint32 GetNextPauseWaypointTimestamp(uint32 time) const;
double CalculateDistanceMoved(double timePassedInSegment, double segmentDuration, bool isFirstSegment, bool isLastSegment) const;
std::set<uint32> MapIds;
};
struct TransportAnimation
{
TransportAnimation();
~TransportAnimation();
TransportAnimation(TransportAnimation const&) = delete;
TransportAnimation(TransportAnimation&&) noexcept;
TransportAnimation& operator=(TransportAnimation const&) = delete;
TransportAnimation& operator=(TransportAnimation&&) noexcept;
std::map<uint32, TransportAnimationEntry const*> Path;
std::map<uint32, TransportRotationEntry const*> Rotations;
uint32 TotalTime = 0;
TransportAnimationEntry const* GetPrevAnimNode(uint32 time) const;
TransportRotationEntry const* GetPrevAnimRotation(uint32 time) const;
TransportAnimationEntry const* GetNextAnimNode(uint32 time) const;
TransportRotationEntry const* GetNextAnimRotation(uint32 time) const;
};
struct TransportSpawn
{
ObjectGuid::LowType SpawnId = UI64LIT(0);
uint32 TransportGameObjectId = 0; // entry in respective _template table
uint8 PhaseUseFlags = 0;
uint32 PhaseId = 0;
uint32 PhaseGroup = 0;
};
class TC_GAME_API TransportMgr
{
public:
TransportMgr(TransportMgr const&) = delete;
TransportMgr(TransportMgr&&) = delete;
TransportMgr& operator=(TransportMgr const&) = delete;
TransportMgr& operator=(TransportMgr&&) = delete;
static TransportMgr* instance();
void Unload();
void LoadTransportTemplates();
void LoadTransportAnimationAndRotation();
void LoadTransportSpawns();
// Creates a transport using given GameObject template entry
Transport* CreateTransport(uint32 entry, Map* map, ObjectGuid::LowType guid = 0, uint8 phaseUseFlags = 0, uint32 phaseId = 0, uint32 phaseGroupId = 0);
// creates all transports for map
void CreateTransportsForMap(Map* map);
TransportTemplate const* GetTransportTemplate(uint32 entry) const;
TransportAnimation const* GetTransportAnimInfo(uint32 entry) const;
TransportSpawn const* GetTransportSpawn(ObjectGuid::LowType spawnId) const;
private:
TransportMgr();
~TransportMgr();
// Generates and precaches a path for transport to avoid generation each time transport instance is created
void GeneratePath(GameObjectTemplate const* goInfo, TransportTemplate* transport);
void AddPathNodeToTransport(uint32 transportEntry, uint32 timeSeg, TransportAnimationEntry const* node);
void AddPathRotationToTransport(uint32 transportEntry, uint32 timeSeg, TransportRotationEntry const* node);
// Container storing transport templates
std::unordered_map<uint32, TransportTemplate> _transportTemplates;
// Container storing transport entries to create for instanced maps
std::unordered_map<uint32, std::set<TransportSpawn*>> _transportsByMap;
std::map<uint32, TransportAnimation> _transportAnimations;
std::unordered_map<ObjectGuid::LowType, TransportSpawn> _transportSpawns;
};
#define sTransportMgr TransportMgr::instance()
#endif // TRANSPORTMGR_H
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