From cea9b8655a4b74466bb0c501bfa51eb2ee240329 Mon Sep 17 00:00:00 2001
From: LiquidFenrir <liquidfenrir@outlook.fr>
Date: Wed, 31 Mar 2021 15:27:58 +0200
Subject: [PATCH] make shuffle work on consoles that never used it

---
 include/themes.h | 5 +++--
 source/themes.c  | 5 ++++-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/include/themes.h b/include/themes.h
index dcb0031..6b59ce8 100644
--- a/include/themes.h
+++ b/include/themes.h
@@ -49,8 +49,9 @@ typedef struct {
     u8 _padding1[0x13b8];
     ThemeEntry_s theme_entry;
     ThemeEntry_s shuffle_themes[MAX_SHUFFLE_THEMES];
-    u8 _padding2[0xb];
-    bool shuffle;
+    u8 shuffle_seedA[0xb];
+    u8 shuffle;
+    u8 shuffle_seedB[0xa];
 } SaveData_dat_s;
 
 typedef struct {
diff --git a/source/themes.c b/source/themes.c
index 6d28503..229378c 100644
--- a/source/themes.c
+++ b/source/themes.c
@@ -264,7 +264,7 @@ static Result install_theme_internal(Entry_List_s themes, int installmode)
     savedata->theme_entry.type = 3;
     savedata->theme_entry.index = 0xff;
 
-    savedata->shuffle = (installmode & THEME_INSTALL_SHUFFLE);
+    savedata->shuffle = (installmode & THEME_INSTALL_SHUFFLE) ? 1 : 0;
     if(installmode & THEME_INSTALL_SHUFFLE)
     {
         memset(savedata->shuffle_themes, 0, sizeof(ThemeEntry_s)*MAX_SHUFFLE_THEMES);
@@ -273,6 +273,9 @@ static Result install_theme_internal(Entry_List_s themes, int installmode)
             savedata->shuffle_themes[i].type = 3;
             savedata->shuffle_themes[i].index = i;
         }
+        const u8 shuffle_seed[0xB] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
+        memcpy(savedata->shuffle_seedA, shuffle_seed, 0xB);
+        memcpy(savedata->shuffle_seedB, shuffle_seed, 0xA);
     }
 
     res = buf_to_file(savedata_size, fsMakePath(PATH_ASCII, "/SaveData.dat"), ArchiveHomeExt, savedata_buf);