Tarkov-UIFixes/Patches/HideoutLevelPatches.cs

using EFT.Hideout;
using HarmonyLib;
using SPT.Reflection.Patching;
using System.Reflection;

namespace UIFixes;

public static class HideoutLevelPatches
{
    private static string CurrentArea;
    private static ELevelType CurrentLevel = ELevelType.NotSet;

    public static void Enable()
    {
        new SelectAreaPatch().Enable();
        new ChangeLevelPatch().Enable();
        new PickInitialLevelPatch().Enable();
        new ClearLevelPatch().Enable();
    }

    public class SelectAreaPatch : ModulePatch
    {
        protected override MethodBase GetTargetMethod()
        {
            return AccessTools.Method(typeof(AreaScreenSubstrate), nameof(AreaScreenSubstrate.SelectArea));
        }

        [PatchPrefix]
        public static void Prefix(AreaData areaData)
        {
            if (areaData.Template.Id != CurrentArea)
            {
                CurrentArea = areaData.Template.Id;
                CurrentLevel = ELevelType.NotSet;
            }
        }
    }

    public class ChangeLevelPatch : ModulePatch
    {
        protected override MethodBase GetTargetMethod()
        {
            return AccessTools.Method(typeof(AreaScreenSubstrate), nameof(AreaScreenSubstrate.method_6));
        }

        [PatchPrefix]
        public static void Prefix(ELevelType state)
        {
            CurrentLevel = state;
        }
    }

    public class PickInitialLevelPatch : ModulePatch
    {
        protected override MethodBase GetTargetMethod()
        {
            return AccessTools.Method(typeof(AreaScreenSubstrate), nameof(AreaScreenSubstrate.method_3));
        }

        [PatchPrefix]
        public static bool Prefix(ref ELevelType __result)
        {
            if (CurrentLevel != ELevelType.NotSet)
            {
                __result = CurrentLevel;
                return false;
            }

            return true;
        }
    }

    public class ClearLevelPatch : ModulePatch
    {
        protected override MethodBase GetTargetMethod()
        {
            return AccessTools.Method(typeof(HideoutScreenOverlay), nameof(HideoutScreenOverlay.ReturnToPreviousState));
        }

        [PatchPostfix]
        public static void Postfix()
        {
            CurrentArea = null;
            CurrentLevel = ELevelType.NotSet;
        }
    }
}