m_random.c
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上传日期:2021-05-12
资源大小:455k
文件大小:3k
源码类别:
射击游戏
开发平台:
Visual C++
- // Emacs style mode select -*- C++ -*-
- //-----------------------------------------------------------------------------
- //
- // $Id:$
- //
- // Copyright (C) 1993-1996 by id Software, Inc.
- //
- // This source is available for distribution and/or modification
- // only under the terms of the DOOM Source Code License as
- // published by id Software. All rights reserved.
- //
- // The source is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
- // for more details.
- //
- // $Log:$
- //
- // DESCRIPTION:
- // Random number LUT.
- //
- //-----------------------------------------------------------------------------
- static const char rcsid[] = "$Id: m_random.c,v 1.1 1997/02/03 22:45:11 b1 Exp $";
- //
- // M_Random
- // Returns a 0-255 number
- //
- unsigned char 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;
- // Which one is deterministic?
- 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;
- }