[+] Load AssetBundle without manifest

AquaMai/AquaMai.csproj

@@ -271,6 +271,7 @@
     <Compile Include="Main.cs" />
     <Compile Include="UX\CustomVersionString.cs" />
     <Compile Include="UX\LoadJacketPng.cs" />
+    <Compile Include="UX\LoadAssetBundleWithoutManifest.cs" />
     <Compile Include="UX\QuickSkip.cs" />
     <Compile Include="UX\SinglePlayer.cs" />
     <Compile Include="UX\SkipWarningScreen.cs" />

AquaMai/AquaMai.toml

@@ -20,6 +20,8 @@ CustomVersionString=""
 LoadJacketPng=true
 # Press key "7" for 1 second to skip to next step or restart current song
 QuickSkip=true
+# Add ".ab" image resources without the need of rebuilding a manifest
+LoadAssetBundleWithoutManifest=true
 
 [Performance]
 # Disable some useless checks and delays to speed up the game boot process

AquaMai/Config.cs

@@ -20,6 +20,7 @@ namespace AquaMai
             public bool SinglePlayer { get; set; }
             public bool SkipToMusicSelection { get; set; }
             public bool LoadJacketPng { get; set; }
+            public bool LoadAssetBundleWithoutManifest { get; set; }
             public bool QuickSkip { get; set; }
             public string CustomVersionString { get; set; }
         }

AquaMai/UX/LoadAssetBundleWithoutManifest.cs

@@ -0,0 +1,32 @@
+using System.Collections.Generic;
+using System.Linq;
+using HarmonyLib;
+using UnityEngine;
+using Manager;
+using Util;
+
+namespace AquaMai.UX
+{
+    public class LoadAssetBundleWithoutManifest
+    {
+        private static HashSet<string> abFiles = new HashSet<string>();
+
+        [HarmonyPostfix]
+        [HarmonyPatch(typeof(OptionDataManager), "CheckAssetBundle")]
+        public static void PostCheckAssetBundle(ref Safe.ReadonlySortedDictionary<string, string> abs)
+        {
+            foreach (var ab in abs)
+            {
+                abFiles.Add(ab.Key);
+            }
+        }
+
+        [HarmonyPrefix]
+        [HarmonyPatch(typeof(AssetBundleManifest), "GetAllAssetBundles")]
+        public static bool PreGetAllAssetBundles(AssetBundleManifest __instance, ref string[] __result)
+        {
+            __result = abFiles.ToArray();
+            return false;
+        }
+    }
+}