From 19e016ae782cec21526aa15e4ebf06543113873a Mon Sep 17 00:00:00 2001
From: Luther Wen Xu <lutherchanpublic+git@gmail.com>
Date: Thu, 28 Nov 2019 12:11:06 +0800
Subject: [PATCH] modules/gacha: Fix implementation of random

---
 modules/gacha/rand.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/gacha/rand.go b/modules/gacha/rand.go
index 6ffa2b0..2e82055 100644
--- a/modules/gacha/rand.go
+++ b/modules/gacha/rand.go
@@ -16,7 +16,7 @@ func (cryptoSource) Int63() int64 {
 	if err != nil {
 		panic(err)
 	}
-	return int64(value ^ uint64(1<<63))
+	return int64(value & ^uint64(1<<63))
 }
 
 func (cryptoSource) Seed(seed int64) {}