contrib/other/sdldoom-1.10/m_bbox.c

   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 //      Main loop menu stuff.
  21 //      Random number LUT.
  22 //      Default Config File.
  23 //      PCX Screenshots.
  24 //
  25 //-----------------------------------------------------------------------------
  26
  27 static const char
  28 rcsid[] = "$Id: m_bbox.c,v 1.1 1997/02/03 22:45:10 b1 Exp $";
  29
  30
  31 #ifdef __GNUG__
  32 #pragma implementation "m_bbox.h"
  33 #endif
  34 #include "m_bbox.h"
  35
  36
  37
  38
  39 void M_ClearBox (fixed_t *box)
  40 {
  41     box[BOXTOP] = box[BOXRIGHT] = MININT;
  42     box[BOXBOTTOM] = box[BOXLEFT] = MAXINT;
  43 }
  44
  45 void
  46 M_AddToBox
  47 ( fixed_t*      box,
  48   fixed_t       x,
  49   fixed_t       y )
  50 {
  51     if (x<box[BOXLEFT])
  52         box[BOXLEFT] = x;
  53     else if (x>box[BOXRIGHT])
  54         box[BOXRIGHT] = x;
  55     if (y<box[BOXBOTTOM])
  56         box[BOXBOTTOM] = y;
  57     else if (y>box[BOXTOP])
  58         box[BOXTOP] = y;
  59 }
  60
  61
  62
  63
  64