FavSave.cs

using MelonLoader;
using System;
using System.Linq;

namespace FavGirl
{
	public class FavSave
    {
		public static GirlID FavGirl {
			get => favGirl.Value;
			set {
				if(Enum.IsDefined(typeof(GirlID), value)) {
					favGirl.Value = value;
				} else {
					favGirl.Value = GirlID.NONE;
				}
			}
		}
		public static ElfinID FavElfin {
			get => favElfin.Value;
			set {
				if(Enum.IsDefined(typeof(ElfinID), value)) {
					favElfin.Value = value;
				} else {
					favElfin.Value = ElfinID.NONE;
                }
			}
		}

		public static MelonPreferences_Category favCategory;
		public static MelonPreferences_Entry<GirlID> favGirl;
		public static MelonPreferences_Entry<ElfinID> favElfin;
		public static MelonPreferences_Entry<bool> conditionalHideScoreDetails;

		public static void Load() {
			var girlValuesStr = "";
			var elfinValuesStr = "";

			foreach(var str in Enum.GetNames(typeof(GirlID))) {
				girlValuesStr += str + "\n";
            }
			girlValuesStr = girlValuesStr.Substring(0, girlValuesStr.Length - 1);

			foreach(var str in Enum.GetNames(typeof(ElfinID))) {
				elfinValuesStr += str + "\n";
			}
			elfinValuesStr = elfinValuesStr.Substring(0, elfinValuesStr.Length - 1);

			favCategory = MelonPreferences.CreateCategory(MelonBuildInfo.Name);
			favCategory.SetFilePath("UserData/FavGirl.cfg");
			favGirl = MelonPreferences.CreateEntry(
				MelonBuildInfo.Name, "favGirl", GirlID.NONE, 
				description: "Which girl is currently favorited. Acceptable values:\n" + girlValuesStr
			);
			favElfin = MelonPreferences.CreateEntry(
				MelonBuildInfo.Name, "favElfin", ElfinID.NONE, 
				description: "Which elfin is currently favorited. Acceptable values:\n" + elfinValuesStr
			);
			conditionalHideScoreDetails = MelonPreferences.CreateEntry(
				MelonBuildInfo.Name, "conditionalHideScoreDetails", false, 
				description: "Whether to automatically hide girl/elfin choices when the ability matches the victory screen.\nFor if you want to get vanilla victory screens."
			);

			if(!Enum.IsDefined(typeof(GirlID), favGirl.Value)) FavGirl = GirlID.NONE;
			if(!Enum.IsDefined(typeof(ElfinID), favElfin.Value)) FavElfin = ElfinID.NONE;
		}
	}

	// List of valid girls selectable as favorites
	// Girls not present cannot be selected
	public enum GirlID
    {
		NONE          = -1,
		RIN_BASS      = 0,
		RIN_BAD       = 1,
		RIN_SLEEP     = 2,
		RIN_BUNNY     = 3,
		RIN_XMAS      = 13,
		RIN_FOOL      = 17,
		BURO_PILOT    = 4,
		BURO_IDOL     = 5,
		BURO_ZOMBIE   = 6,
		BURO_JOKER    = 7,
		BURO_SAILOR   = 14,
		BURO_BIKER    = 24,
		OLA_BOXER     = 23,
		MARIJA_VIOLIN = 8,
		MARIJA_MAID   = 9,
		MARIJA_MAGIC  = 10,
		MARIJA_DEVIL  = 11,
		MARIJA_BLACK  = 12,
		YUME          = 15,
		NEKO          = 16,
		REIMU         = 18,
		EL_CLEAR      = 19,
		MARIJA_SISTER = 20,
		MARISA        = 21,
		AMIYA         = 22,
		MIKU_HATSUNE  = 25
    }

	// List of valid Elfins selectable as favorites
	// Elfins not present cannot be selected (Currently only newly added ones and Neon Egg)
	// Neon Egg has special mechanics that do not work with sprite replacement
	public enum ElfinID
    {
		NONE     = -2,
		UNSELECT = -1,
		MIO      = 0,
		ANGELA   = 1,
		THANATOS = 2,
		RABOT    = 3,
		NURSE    = 4,
		WITCH    = 5,
		DRAGON   = 6,
		LILITH   = 7,
		PAIGE    = 8,
		SILENCER = 9,
		// NEON_EGG = 10
    }
}