mu3-mods/AttractVideoPlayer/MU3.OperationManager/patch_OperationManager.cs

using System;
using System.Collections.ObjectModel;
using System.IO;

namespace MU3.Operation;

class patch_OperationManager: OperationManager {
    private ReadOnlyCollection<MovieData> _movieDataList;
    private int _movieIndex;
    private string _fileName;

    ~patch_OperationManager() {
        try {
            File.WriteAllText(_fileName, MovieIndex.ToString());
        } catch(Exception ex) {
            System.Console.WriteLine(ex);
        }
    }
    public int MovieIndex {
        set {
            if(_movieDataList.Count > 0) {
                _movieIndex = (value + _movieDataList.Count) % _movieDataList.Count;
            } else {
                _movieIndex = 0;
            }
        }
        get {
            return _movieIndex;
        }
    }
    public new MovieData movieData {
        get {
            if(_movieDataList.Count > 0) {
                return _movieDataList[MovieIndex];
            }
            return null;
        }
    }

    public extern void orig_initialize();

    public new void initialize() {
        orig_initialize();

        using IniFile iniFile = new("mu3.ini");
        var dir = iniFile.getValue("Extra", "CacheDir", ".");
        Directory.CreateDirectory(dir);
        _fileName = Path.Combine(dir, "data_advert_cache.txt");

        try {
            _movieIndex = Math.Max(0, int.Parse(File.ReadAllText(_fileName)));
        } catch(Exception) {
            _movieIndex = 0;
        }

    }
}