hondacrx
5b0391b1d9
Port From (https://github.com/TrinityCore/TrinityCore/commit/e0afca513a9bfbd82134942e1266e46811707cbb)
349 lines
13 KiB
C#
349 lines
13 KiB
C#
/*
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* Copyright (C) 2012-2020 CypherCore <http://github.com/CypherCore>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using Framework.Constants;
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using Game.Entities;
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using System.Collections.Generic;
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using System.Linq;
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namespace Game.Movement
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{
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public class WaypointMovementGenerator : MovementGeneratorMedium<Creature>
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{
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public WaypointMovementGenerator(uint pathId = 0, bool repeating = true)
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{
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_nextMoveTime = new TimeTrackerSmall(0);
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_pathId = pathId;
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_repeating = repeating;
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_loadedFromDB = true;
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}
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public WaypointMovementGenerator(WaypointPath path, bool repeating = true)
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{
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_nextMoveTime = new TimeTrackerSmall(0);
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_repeating = repeating;
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_path = path;
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}
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void LoadPath(Creature creature)
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{
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if (_loadedFromDB)
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{
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if (_pathId == 0)
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_pathId = creature.GetWaypointPath();
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_path = Global.WaypointMgr.GetPath(_pathId);
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}
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if (_path == null)
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{
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// No path id found for entry
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Log.outError(LogFilter.Sql, $"WaypointMovementGenerator.LoadPath: creature {creature.GetName()} ({creature.GetGUID()} DB GUID: {creature.GetSpawnId()}) doesn't have waypoint path id: {_pathId}");
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return;
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}
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_nextMoveTime.Reset(1000);
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// inform AI
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if (creature.IsAIEnabled)
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creature.GetAI().WaypointPathStarted(_path.id);
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}
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public override void DoInitialize(Creature creature)
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{
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_done = false;
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LoadPath(creature);
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}
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public override void DoFinalize(Creature creature)
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{
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creature.ClearUnitState(UnitState.Roaming | UnitState.RoamingMove);
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creature.SetWalk(false);
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}
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public override void DoReset(Creature creature)
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{
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if (!_done && CanMove(creature))
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StartMoveNow(creature);
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else if (_done)
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{
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// mimic IdleMovementGenerator
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if (!creature.IsStopped())
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creature.StopMoving();
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}
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}
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void OnArrived(Creature creature)
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{
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if (_path == null || _path.nodes.Empty())
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return;
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Cypher.Assert(_currentNode < _path.nodes.Count, $"WaypointMovementGenerator.OnArrived: tried to reference a node id ({_currentNode}) which is not included in path ({_path.id})");
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WaypointNode waypoint = _path.nodes.ElementAt((int)_currentNode);
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if (waypoint.delay != 0)
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{
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creature.ClearUnitState(UnitState.RoamingMove);
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_nextMoveTime.Reset((int)waypoint.delay);
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}
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if (waypoint.eventId != 0 && RandomHelper.URand(0, 99) < waypoint.eventChance)
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{
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Log.outDebug(LogFilter.MapsScript, $"Creature movement start script {waypoint.eventId} at point {_currentNode} for {creature.GetGUID()}.");
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creature.ClearUnitState(UnitState.RoamingMove);
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creature.GetMap().ScriptsStart(ScriptsType.Waypoint, waypoint.eventId, creature, null);
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}
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// inform AI
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if (creature.IsAIEnabled)
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{
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creature.GetAI().MovementInform(MovementGeneratorType.Waypoint, (uint)_currentNode);
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creature.GetAI().WaypointReached(waypoint.id, _path.id);
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}
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creature.UpdateCurrentWaypointInfo(waypoint.id, _path.id);
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}
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bool StartMove(Creature creature)
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{
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if (!creature || !creature.IsAlive())
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return true;
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if (_done || _path == null || _path.nodes.Empty())
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return true;
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// if the owner is the leader of its formation, check members status
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if (creature.IsFormationLeader() && !creature.IsFormationLeaderMoveAllowed())
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{
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_nextMoveTime.Reset(1000);
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return true;
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}
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bool transportPath = creature.GetTransport() != null;
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if (_isArrivalDone)
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{
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Cypher.Assert(_currentNode < _path.nodes.Count, $"WaypointMovementGenerator.StartMove: tried to reference a node id ({_currentNode}) which is not included in path ({_path.id})");
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WaypointNode lastWaypoint = _path.nodes.ElementAt(_currentNode);
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if ((_currentNode == _path.nodes.Count - 1) && !_repeating) // If that's our last waypoint
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{
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float x = lastWaypoint.x;
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float y = lastWaypoint.y;
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float z = lastWaypoint.z;
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float o = creature.GetOrientation();
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if (!transportPath)
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creature.SetHomePosition(x, y, z, o);
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else
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{
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Transport trans = creature.GetTransport();
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if (trans)
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{
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o -= trans.GetOrientation();
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creature.SetTransportHomePosition(x, y, z, o);
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trans.CalculatePassengerPosition(ref x, ref y, ref z, ref o);
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creature.SetHomePosition(x, y, z, o);
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}
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else
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transportPath = false;
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// else if (vehicle) - this should never happen, vehicle offsets are const
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}
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_done = true;
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creature.UpdateCurrentWaypointInfo(0, 0);
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// inform AI
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if (creature.IsAIEnabled)
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creature.GetAI().WaypointPathEnded(lastWaypoint.id, _path.id);
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return true;
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}
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_currentNode = (_currentNode + 1) % _path.nodes.Count;
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// inform AI
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if (creature.IsAIEnabled)
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creature.GetAI().WaypointStarted(lastWaypoint.id, _path.id);
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}
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Cypher.Assert(_currentNode < _path.nodes.Count, $"WaypointMovementGenerator.StartMove: tried to reference a node id ({_currentNode}) which is not included in path ({_path.id})");
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WaypointNode waypoint = _path.nodes.ElementAt(_currentNode);
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Position formationDest = new(waypoint.x, waypoint.y, waypoint.z, (waypoint.orientation != 0 && waypoint.delay != 0) ? waypoint.orientation : 0.0f);
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_isArrivalDone = false;
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_recalculateSpeed = false;
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creature.AddUnitState(UnitState.RoamingMove);
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MoveSplineInit init = new(creature);
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//! If creature is on transport, we assume waypoints set in DB are already transport offsets
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if (transportPath)
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{
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init.DisableTransportPathTransformations();
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ITransport trans = creature.GetDirectTransport();
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if (trans != null)
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{
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float orientation = formationDest.GetOrientation();
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trans.CalculatePassengerPosition(ref formationDest.posX, ref formationDest.posY, ref formationDest.posZ, ref orientation);
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formationDest.SetOrientation(orientation);
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}
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}
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//! Do not use formationDest here, MoveTo requires transport offsets due to DisableTransportPathTransformations() call
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//! but formationDest contains global coordinates
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init.MoveTo(waypoint.x, waypoint.y, waypoint.z);
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//! Accepts angles such as 0.00001 and -0.00001, 0 must be ignored, default value in waypoint table
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if (waypoint.orientation != 0 && waypoint.delay != 0)
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init.SetFacing(waypoint.orientation);
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switch (waypoint.moveType)
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{
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case WaypointMoveType.Land:
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init.SetAnimation(AnimType.ToGround);
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break;
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case WaypointMoveType.Takeoff:
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init.SetAnimation(AnimType.ToFly);
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break;
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case WaypointMoveType.Run:
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init.SetWalk(false);
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break;
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case WaypointMoveType.Walk:
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init.SetWalk(true);
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break;
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}
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init.Launch();
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// inform formation
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creature.SignalFormationMovement(formationDest, waypoint.id, waypoint.moveType, (waypoint.orientation != 0 && waypoint.delay != 0) ? true : false);
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return true;
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}
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public override bool DoUpdate(Creature creature, uint diff)
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{
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if (!creature || !creature.IsAlive())
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return true;
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if (_done || _path == null || _path.nodes.Empty())
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return true;
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if (_stalled || creature.HasUnitState(UnitState.NotMove) || creature.IsMovementPreventedByCasting())
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{
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creature.StopMoving();
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return true;
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}
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if (!_nextMoveTime.Passed())
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{
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if (creature.MoveSpline.Finalized())
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{
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_nextMoveTime.Update((int)diff);
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if (_nextMoveTime.Passed())
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return StartMoveNow(creature);
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}
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}
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else
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{
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if (creature.MoveSpline.Finalized())
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{
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OnArrived(creature);
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_isArrivalDone = true;
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if (_nextMoveTime.Passed())
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return StartMove(creature);
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}
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else
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{
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// Set home position at place on waypoint movement.
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if (creature.GetTransGUID().IsEmpty())
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creature.SetHomePosition(creature.GetPosition());
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if (_recalculateSpeed)
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{
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if (_nextMoveTime.Passed())
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StartMove(creature);
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}
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}
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}
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return true;
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}
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void MovementInform(Creature creature)
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{
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if (creature.IsAIEnabled)
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creature.GetAI().MovementInform(MovementGeneratorType.Waypoint, (uint)_currentNode);
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}
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public override bool GetResetPosition(Unit u, out float x, out float y, out float z)
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{
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x = y = z = 0;
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// prevent a crash at empty waypoint path.
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// prevent a crash at empty waypoint path.
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if (_path == null || _path.nodes.Empty())
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return false;
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Cypher.Assert(_currentNode < _path.nodes.Count, $"WaypointMovementGenerator.GetResetPos: tried to reference a node id ({_currentNode}) which is not included in path ({_path.id})");
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WaypointNode waypoint = _path.nodes.ElementAt(_currentNode);
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x = waypoint.x;
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y = waypoint.y;
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z = waypoint.z;
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return true;
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}
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public override void Pause(uint timer = 0)
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{
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_stalled = timer != 0 ? false : true;
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_nextMoveTime.Reset(timer != 0 ? (int)timer : 1);
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}
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public override void Resume(uint overrideTimer = 0)
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{
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_stalled = false;
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if (overrideTimer != 0)
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_nextMoveTime.Reset((int)overrideTimer);
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}
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bool CanMove(Creature creature)
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{
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return _nextMoveTime.Passed() && !creature.HasUnitState(UnitState.NotMove) && !creature.IsMovementPreventedByCasting();
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}
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public override MovementGeneratorType GetMovementGeneratorType() { return MovementGeneratorType.Waypoint; }
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public override void UnitSpeedChanged() { _recalculateSpeed = true; }
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bool StartMoveNow(Creature creature)
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{
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_nextMoveTime.Reset(0);
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return StartMove(creature);
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}
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TimeTrackerSmall _nextMoveTime;
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bool _recalculateSpeed;
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bool _isArrivalDone;
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uint _pathId;
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bool _repeating;
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bool _loadedFromDB;
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bool _stalled;
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bool _done;
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WaypointPath _path;
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int _currentNode;
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}
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}
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