Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 298 | serge | 1 | // Emacs style mode select -*- C++ -*- |
| 2 | //----------------------------------------------------------------------------- |
||
| 3 | // |
||
| 4 | // $Id:$ |
||
| 5 | // |
||
| 6 | // Copyright (C) 1993-1996 by id Software, Inc. |
||
| 7 | // |
||
| 8 | // This source is available for distribution and/or modification |
||
| 9 | // only under the terms of the DOOM Source Code License as |
||
| 10 | // published by id Software. All rights reserved. |
||
| 11 | // |
||
| 12 | // The source is distributed in the hope that it will be useful, |
||
| 13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 14 | // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License |
||
| 15 | // for more details. |
||
| 16 | // |
||
| 17 | // $Log:$ |
||
| 18 | // |
||
| 19 | // DESCRIPTION: |
||
| 20 | // Random number LUT. |
||
| 21 | // |
||
| 22 | //----------------------------------------------------------------------------- |
||
| 23 | |||
| 24 | static const char rcsid[] = "$Id: m_random.c,v 1.1 1997/02/03 22:45:11 b1 Exp $"; |
||
| 25 | |||
| 26 | |||
| 27 | // |
||
| 28 | // M_Random |
||
| 29 | // Returns a 0-255 number |
||
| 30 | // |
||
| 31 | unsigned char rndtable[256] = { |
||
| 32 | 0, 8, 109, 220, 222, 241, 149, 107, 75, 248, 254, 140, 16, 66 , |
||
| 33 | 74, 21, 211, 47, 80, 242, 154, 27, 205, 128, 161, 89, 77, 36 , |
||
| 34 | 95, 110, 85, 48, 212, 140, 211, 249, 22, 79, 200, 50, 28, 188 , |
||
| 35 | 52, 140, 202, 120, 68, 145, 62, 70, 184, 190, 91, 197, 152, 224 , |
||
| 36 | 149, 104, 25, 178, 252, 182, 202, 182, 141, 197, 4, 81, 181, 242 , |
||
| 37 | 145, 42, 39, 227, 156, 198, 225, 193, 219, 93, 122, 175, 249, 0 , |
||
| 38 | 175, 143, 70, 239, 46, 246, 163, 53, 163, 109, 168, 135, 2, 235 , |
||
| 39 | 25, 92, 20, 145, 138, 77, 69, 166, 78, 176, 173, 212, 166, 113 , |
||
| 40 | 94, 161, 41, 50, 239, 49, 111, 164, 70, 60, 2, 37, 171, 75 , |
||
| 41 | 136, 156, 11, 56, 42, 146, 138, 229, 73, 146, 77, 61, 98, 196 , |
||
| 42 | 135, 106, 63, 197, 195, 86, 96, 203, 113, 101, 170, 247, 181, 113 , |
||
| 43 | 80, 250, 108, 7, 255, 237, 129, 226, 79, 107, 112, 166, 103, 241 , |
||
| 44 | 24, 223, 239, 120, 198, 58, 60, 82, 128, 3, 184, 66, 143, 224 , |
||
| 45 | 145, 224, 81, 206, 163, 45, 63, 90, 168, 114, 59, 33, 159, 95 , |
||
| 46 | 28, 139, 123, 98, 125, 196, 15, 70, 194, 253, 54, 14, 109, 226 , |
||
| 47 | 71, 17, 161, 93, 186, 87, 244, 138, 20, 52, 123, 251, 26, 36 , |
||
| 48 | 17, 46, 52, 231, 232, 76, 31, 221, 84, 37, 216, 165, 212, 106 , |
||
| 49 | 197, 242, 98, 43, 39, 175, 254, 145, 190, 84, 118, 222, 187, 136 , |
||
| 50 | 120, 163, 236, 249 |
||
| 51 | }; |
||
| 52 | |||
| 53 | int rndindex = 0; |
||
| 54 | int prndindex = 0; |
||
| 55 | |||
| 56 | // Which one is deterministic? |
||
| 57 | int P_Random (void) |
||
| 58 | { |
||
| 59 | prndindex = (prndindex+1)&0xff; |
||
| 60 | return rndtable[prndindex]; |
||
| 61 | } |
||
| 62 | |||
| 63 | int M_Random (void) |
||
| 64 | { |
||
| 65 | rndindex = (rndindex+1)&0xff; |
||
| 66 | return rndtable[rndindex]; |
||
| 67 | } |
||
| 68 | |||
| 69 | void M_ClearRandom (void) |
||
| 70 | { |
||
| 71 | rndindex = prndindex = 0; |
||
| 72 | } |
||
| 73 |