From 5a32ee7e78697f4b3d94a435c21f6b08a0ae839a Mon Sep 17 00:00:00 2001
From: Simon Howard
Date: Sat, 20 Sep 2008 21:57:49 +0000
Subject: Move m_random.[ch] to doom/ (as Hexen uses a different random number
 table). Split RNG code out of heretic/m_misc.c to a separate m_random.c.

Subversion-branch: /branches/raven-branch
Subversion-revision: 1256
---
 src/heretic/m_random.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 src/heretic/m_random.c

(limited to 'src/heretic/m_random.c')

diff --git a/src/heretic/m_random.c b/src/heretic/m_random.c
new file mode 100644
index 00000000..74dbc2d8
--- /dev/null
+++ b/src/heretic/m_random.c
@@ -0,0 +1,77 @@
+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 1993-2008 Raven Software
+//
+// 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 (at your option) 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, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+//-----------------------------------------------------------------------------
+
+#include "m_random.h"
+
+/*
+===============
+=
+= M_Random
+=
+= Returns a 0-255 number
+=
+===============
+*/
+
+const unsigned int rndtable[256] = {
+    0, 8, 109, 220, 222, 241, 149, 107, 75, 248, 254, 140, 16, 66,
+    74, 21, 211, 47, 80, 242, 154, 27, 205, 128, 161, 89, 77, 36,
+    95, 110, 85, 48, 212, 140, 211, 249, 22, 79, 200, 50, 28, 188,
+    52, 140, 202, 120, 68, 145, 62, 70, 184, 190, 91, 197, 152, 224,
+    149, 104, 25, 178, 252, 182, 202, 182, 141, 197, 4, 81, 181, 242,
+    145, 42, 39, 227, 156, 198, 225, 193, 219, 93, 122, 175, 249, 0,
+    175, 143, 70, 239, 46, 246, 163, 53, 163, 109, 168, 135, 2, 235,
+    25, 92, 20, 145, 138, 77, 69, 166, 78, 176, 173, 212, 166, 113,
+    94, 161, 41, 50, 239, 49, 111, 164, 70, 60, 2, 37, 171, 75,
+    136, 156, 11, 56, 42, 146, 138, 229, 73, 146, 77, 61, 98, 196,
+    135, 106, 63, 197, 195, 86, 96, 203, 113, 101, 170, 247, 181, 113,
+    80, 250, 108, 7, 255, 237, 129, 226, 79, 107, 112, 166, 103, 241,
+    24, 223, 239, 120, 198, 58, 60, 82, 128, 3, 184, 66, 143, 224,
+    145, 224, 81, 206, 163, 45, 63, 90, 168, 114, 59, 33, 159, 95,
+    28, 139, 123, 98, 125, 196, 15, 70, 194, 253, 54, 14, 109, 226,
+    71, 17, 161, 93, 186, 87, 244, 138, 20, 52, 123, 251, 26, 36,
+    17, 46, 52, 231, 232, 76, 31, 221, 84, 37, 216, 165, 212, 106,
+    197, 242, 98, 43, 39, 175, 254, 145, 190, 84, 118, 222, 187, 136,
+    120, 163, 236, 249
+};
+
+int rndindex = 0;
+int prndindex = 0;
+
+int P_Random(void)
+{
+    prndindex = (prndindex + 1) & 0xff;
+    return rndtable[prndindex];
+}
+
+int M_Random(void)
+{
+    rndindex = (rndindex + 1) & 0xff;
+    return rndtable[rndindex];
+}
+
+void M_ClearRandom(void)
+{
+    rndindex = prndindex = 0;
+}
+
-- 
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