1 /* Emacs style mode select -*- C++ -*-
2 *-----------------------------------------------------------------------------
3 *
4 *
5 * PrBoom: a Doom port merged with LxDoom and LSDLDoom
6 * based on BOOM, a modified and improved DOOM engine
7 * Copyright (C) 1999 by
8 * id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
9 * Copyright (C) 1999-2000 by
10 * Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
11 * Copyright 2005, 2006 by
12 * Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 2
17 * of the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27 * 02111-1307, USA.
28 *
29 * DESCRIPTION:
30 * Main loop menu stuff.
31 * Random number LUT.
32 * Default Config File.
33 * PCX Screenshots.
34 *
35 *-----------------------------------------------------------------------------*/
36
37 #ifdef __GNUG__
38 #pragma implementation "m_bbox.h"
39 #endif
40 #include "m_bbox.h"
41
M_ClearBox(fixed_t * box)42 void M_ClearBox (fixed_t *box)
43 {
44 box[BOXTOP] = box[BOXRIGHT] = INT_MIN;
45 box[BOXBOTTOM] = box[BOXLEFT] = INT_MAX;
46 }
47
M_AddToBox(fixed_t * box,fixed_t x,fixed_t y)48 void M_AddToBox(fixed_t* box,fixed_t x,fixed_t y)
49 {
50 if (x<box[BOXLEFT])
51 box[BOXLEFT] = x;
52 else if (x>box[BOXRIGHT])
53 box[BOXRIGHT] = x;
54 if (y<box[BOXBOTTOM])
55 box[BOXBOTTOM] = y;
56 else if (y>box[BOXTOP])
57 box[BOXTOP] = y;
58 }
59