apps/plugins/doom/m_bbox.c

   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  *
  12  *  This program is free software; you can redistribute it and/or
  13  *  modify it under the terms of the GNU General Public License
  14  *  as published by the Free Software Foundation; either version 2
  15  *  of the License, or (at your option) any later version.
  16  *
  17  *  This program is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *  GNU General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License
  23  *  along with this program; if not, write to the Free Software
  24  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  25  *  02111-1307, USA.
  26  *
  27  * DESCRIPTION:
  28  *      Main loop menu stuff.
  29  *      Random number LUT.
  30  *      Default Config File.
  31  *      PCX Screenshots.
  32  *
  33  *-----------------------------------------------------------------------------*/
  34
  35 #ifdef __GNUG__
  36 #pragma implementation "m_bbox.h"
  37 #endif
  38 #include "m_bbox.h"
  39
  40 #include "rockmacros.h"
  41
  42 void M_ClearBox (fixed_t *box)
  43 {
  44    box[BOXTOP] = box[BOXRIGHT] = MININT;
  45    box[BOXBOTTOM] = box[BOXLEFT] = MAXINT;
  46 }
  47
  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 }