sdraw_mods_cvr/ml_pmc/GameEvents.cs

using ABI_RC.Core.Player;
using ABI_RC.Systems.IK;
using System;
using System.Reflection;

namespace ml_pmc
{
    static class GameEvents
    {
        internal class GameEvent
        {
            event Action m_action;
            public void AddListener(Action p_listener) => m_action += p_listener;
            public void RemoveListener(Action p_listener) => m_action -= p_listener;
            public void Invoke() => m_action?.Invoke();
        }
        internal class GameEvent<T1>
        {
            event Action<T1> m_action;
            public void AddListener(Action<T1> p_listener) => m_action += p_listener;
            public void RemoveListener(Action<T1> p_listener) => m_action -= p_listener;
            public void Invoke(T1 p_obj) => m_action?.Invoke(p_obj);
        }

        public static readonly GameEvent OnAvatarPreReuse = new GameEvent();
        public static readonly GameEvent OnAvatarPostReuse = new GameEvent();
        public static readonly GameEvent<PlayerAvatarMovementData> OnPostLocalPlayerMovementDataUpdate = new GameEvent<PlayerAvatarMovementData>();

        internal static void Init(HarmonyLib.Harmony p_instance)
        {
            try
            {
                p_instance.Patch(
                    typeof(IKSystem).GetMethod(nameof(IKSystem.ReinitializeAvatar), BindingFlags.Instance | BindingFlags.Public),
                    new HarmonyLib.HarmonyMethod(typeof(GameEvents).GetMethod(nameof(OnAvatarReinitialize_Prefix), BindingFlags.Static | BindingFlags.NonPublic)),
                    new HarmonyLib.HarmonyMethod(typeof(GameEvents).GetMethod(nameof(OnAvatarReinitialize_Postfix), BindingFlags.Static | BindingFlags.NonPublic))
                );

                p_instance.Patch(
                    typeof(PlayerSetup).GetMethod("UpdatePlayerAvatarMovementData", BindingFlags.Instance | BindingFlags.NonPublic),
                    null,
                    new HarmonyLib.HarmonyMethod(typeof(GameEvents).GetMethod(nameof(OnPlayerAvatarMovementDataUpdate_Postfix), BindingFlags.Static | BindingFlags.NonPublic))
                );
            }
            catch(Exception e)
            {
                MelonLoader.MelonLogger.Error(e);
            }
        }

        static void OnAvatarReinitialize_Prefix()
        {
            try
            {
                OnAvatarPreReuse.Invoke();
            }
            catch(Exception e)
            {
                MelonLoader.MelonLogger.Error(e);
            }
        }

        static void OnAvatarReinitialize_Postfix()
        {
            try
            {
                OnAvatarPostReuse.Invoke();
            }
            catch(Exception e)
            {
                MelonLoader.MelonLogger.Error(e);
            }
        }

        static void OnPlayerAvatarMovementDataUpdate_Postfix(PlayerAvatarMovementData ____playerAvatarMovementData)
        {
            try
            {
                OnPostLocalPlayerMovementDataUpdate.Invoke(____playerAvatarMovementData);
            }
            catch(Exception e)
            {
                MelonLoader.MelonLogger.Error(e);
            }
        }
    }
}