modernuo/Projects/Server/Events/MovementEvent.cs

/*************************************************************************
 * ModernUO                                                              *
 * Copyright 2019-2020 - ModernUO Development Team                       *
 * Email: hi@modernuo.com                                                *
 * File: MovementEvent.cs                                                *
 *                                                                       *
 * 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 3 of the License, or     *
 * (at your option) any later version.                                   *
 *                                                                       *
 * You should have received a copy of the GNU General Public License     *
 * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 *************************************************************************/

using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;

namespace Server
{
    public class MovementEventArgs : EventArgs
    {
        private static readonly Queue<MovementEventArgs> m_Pool = new();

        public MovementEventArgs(Mobile mobile, Direction dir)
        {
            Mobile = mobile;
            Direction = dir;
        }

        public Mobile Mobile { get; private set; }

        public Direction Direction { get; private set; }

        public bool Blocked { get; set; }

        public static MovementEventArgs Create(Mobile mobile, Direction dir)
        {
            MovementEventArgs args;

            if (m_Pool.Count > 0)
            {
                args = m_Pool.Dequeue();

                args.Mobile = mobile;
                args.Direction = dir;
                args.Blocked = false;
            }
            else
            {
                args = new MovementEventArgs(mobile, dir);
            }

            return args;
        }

        public void Free()
        {
            m_Pool.Enqueue(this);
        }
    }

    public static partial class EventSink
    {
        public static event Action<MovementEventArgs> Movement;

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static void InvokeMovement(MovementEventArgs e) => Movement?.Invoke(e);
    }
}