From 38ddfa01fc051cadbd16b3968608f9fd68e700e2 Mon Sep 17 00:00:00 2001
From: gamemasterplc <gamemasterplc@gmail.com>
Date: Mon, 15 Jan 2024 19:32:19 -0600
Subject: [PATCH] Fix frandom

Mario Party 7 left a copy of the function which revealed that it took a parameter
---
 src/game/frand.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/src/game/frand.c b/src/game/frand.c
index ca352d6d..69e83264 100644
--- a/src/game/frand.c
+++ b/src/game/frand.c
@@ -2,26 +2,25 @@
 
 static u32 frand_seed;
 
-static inline u32 frandom(void)
+static inline u32 frandom(u32 param)
 {
-    u32 rand = frand_seed;
     s32 rand2, rand3;
 
-    if (rand == 0) {
-        rand = rand8();
-        rand = rand ^ (s64)OSGetTime();
-        rand ^= 0xD826BC89;
+    if (param == 0) {
+        param = rand8();
+        param = param ^ (s64)OSGetTime();
+        param ^= 0xD826BC89;
     }
 
-    rand2 = rand / (u32)0x1F31D;
-    rand3 = rand - (rand2 * 0x1F31D);
-    rand = rand2 * 0xB14;
-    rand =  rand - rand3 * 0x41A7;
-    return rand;
+    rand2 = param / (u32)0x1F31D;
+    rand3 = param - (rand2 * 0x1F31D);
+    param = rand2 * 0xB14;
+    param =  param - rand3 * 0x41A7;
+    return param;
 }
 
 u32 frand(void) {
-    return frand_seed = frandom();
+    return frand_seed = frandom(frand_seed);
 }
 
 f32 frandf(void) {
@@ -34,7 +33,7 @@ f32 frandf(void) {
 
 u32 frandmod(u32 arg0) {
     u32 ret;
-    frand_seed = frandom();
+    frand_seed = frandom(frand_seed);
     ret = (frand_seed & 0x7FFFFFFF)%arg0;
     return ret;
 }
\ No newline at end of file