From b5fead8f53a555b62c9de2dc23b0f2ce9a136e8e Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Fri, 18 Mar 2016 20:34:04 +0300
Subject: Add custom rand function implimentation, based on precreated random
 sequence.

---
 src/utils/mrand.cpp | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/utils/mrand.cpp

(limited to 'src/utils/mrand.cpp')

diff --git a/src/utils/mrand.cpp b/src/utils/mrand.cpp
new file mode 100644
index 000000000..85b3e6b9c
--- /dev/null
+++ b/src/utils/mrand.cpp
@@ -0,0 +1,45 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2016  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "utils/mrand.h"
+
+#include <cstdlib>
+
+#include "debug.h"
+
+namespace
+{
+    constexpr const int randNumbers = 1024;
+    int mPos = 0;
+    int mRand[randNumbers];
+}  // namespace
+
+void initRand()
+{
+    for (int f = 0; f < randNumbers; f ++)
+        mRand[f] = std::rand();
+}
+
+int mrand()
+{
+    if (mPos >= randNumbers)
+        mPos = 0;
+    return mRand[++mPos];
+}
-- 
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