ModernUO/Projects/UOContent/Engines/Pathing/MovementPath.cs
2020-09-13 21:49:46 -07:00

114 lines
3.1 KiB
C#

using System;
using Server.Items;
using Server.PathAlgorithms;
using Server.PathAlgorithms.FastAStar;
using Server.PathAlgorithms.SlowAStar;
using Server.Spells;
using Server.Targeting;
namespace Server
{
public sealed class MovementPath
{
public MovementPath(Mobile m, Point3D goal)
{
var start = m.Location;
var map = m.Map;
Map = map;
Start = start;
Goal = goal;
if (map == null || map == Map.Internal)
{
return;
}
if (Utility.InRange(start, goal, 1))
{
return;
}
try
{
var alg = OverrideAlgorithm ?? FastAStarAlgorithm.Instance;
if (alg?.CheckCondition(m, map, start, goal) == true)
{
Directions = alg.Find(m, map, start, goal);
}
}
catch (Exception e)
{
Console.WriteLine("Warning: {0}: Pathing error from {1} to {2}", e.GetType().Name, start, goal);
}
}
public Map Map { get; }
public Point3D Start { get; }
public Point3D Goal { get; }
public Direction[] Directions { get; }
public bool Success => Directions?.Length > 0;
public static PathAlgorithm OverrideAlgorithm { get; set; }
public static void Initialize()
{
CommandSystem.Register("Path", AccessLevel.GameMaster, Path_OnCommand);
}
public static void Path_OnCommand(CommandEventArgs e)
{
e.Mobile.BeginTarget(-1, true, TargetFlags.None, Path_OnTarget);
e.Mobile.SendMessage("Target a location and a path will be drawn there.");
}
private static void Path(Mobile from, IPoint3D p, PathAlgorithm alg, string name, int zOffset)
{
OverrideAlgorithm = alg;
var start = DateTime.UtcNow.Ticks;
var path = new MovementPath(from, new Point3D(p));
var end = DateTime.UtcNow.Ticks;
var len = Math.Round((end - start) / 10000.0, 2);
if (!path.Success)
{
from.SendMessage("{0} path failed: {1}ms", name, len);
}
else
{
from.SendMessage("{0} path success: {1}ms", name, len);
var x = from.X;
var y = from.Y;
var z = from.Z;
for (var i = 0; i < path.Directions.Length; ++i)
{
Movement.Movement.Offset(path.Directions[i], ref x, ref y);
new RecallRune().MoveToWorld(new Point3D(x, y, z + zOffset), from.Map);
}
}
}
public static void Path_OnTarget(Mobile from, object targeted)
{
if (!(targeted is IPoint3D p))
{
return;
}
SpellHelper.GetSurfaceTop(ref p);
Path(from, p, FastAStarAlgorithm.Instance, "Fast", 0);
Path(from, p, SlowAStarAlgorithm.Instance, "Slow", 2);
OverrideAlgorithm = null;
}
}
}