input.c

   1 /*
   2   Pacman Arena
   3   Copyright (C) 2003 Nuno Subtil
   4
   5   This program is free software; you can redistribute it and/or
   6   modify it under the terms of the GNU General Public License
   7   as published by the Free Software Foundation; either version 2
   8   of the License, or (at your option) any later version.
   9
  10   This program is distributed in the hope that it will be useful,
  11   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13   GNU General Public License for more details.
  14
  15   You should have received a copy of the GNU General Public License
  16   along with this program; if not, write to the Free Software
  17   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 static const char cvsid[] =
  21   "$Id: input.c,v 1.4 2003/11/30 17:43:55 nsubtil Exp $";
  22
  23 #ifdef _WIN32
  24 #include <windows.h>
  25 #endif
  26
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <SDL.h>
  30
  31 #include "screen.h"
  32 #include "oglconsole.h"
  33
  34 static char keyboard_map[SDLK_LAST];
  35
  36 void input_reset(void)
  37 {
  38         memset(keyboard_map, 0, sizeof(keyboard_map));
  39 }
  40
  41 /*
  42   processes all events and clears the SDL event queue
  43  */
  44 void input_update(void)
  45 {
  46         SDL_Event ev;
  47
  48         while(SDL_PollEvent(&ev))
  49         {
  50                 if (OGLCONSOLE_SDLEvent(&ev) != 0)
  51                         continue;
  52
  53                 if(ev.type == SDL_QUIT)
  54                 {
  55                         SDL_Quit();
  56                         exit(0);
  57                 }
  58
  59                 if(ev.type == SDL_KEYDOWN)
  60                 {
  61                         keyboard_map[ev.key.keysym.sym] = 1;
  62
  63                         /* special hooks */
  64                         if(keyboard_map[SDLK_LALT] && keyboard_map[SDLK_RETURN])
  65                         {
  66                                 screen_toggle_fullscreen();
  67                                 keyboard_map[SDLK_LALT] = 0;
  68                                 keyboard_map[SDLK_RETURN] = 0;
  69                         }
  70                 }
  71
  72                 if(ev.type == SDL_KEYUP)
  73                         keyboard_map[ev.key.keysym.sym] = 0;
  74         }
  75 }
  76
  77 /*
  78   returns the current state of a key
  79 */
  80 int input_kstate(int ksym)
  81 {
  82         if(ksym < 0 || ksym >= SDLK_LAST)
  83         {
  84                 printf("input_kstate: invalid ksym %d\n", ksym);
  85                 SDL_Quit();
  86                 exit(1);
  87         }
  88
  89         return keyboard_map[ksym];
  90 }
  91
  92 /*
  93   clears a key state
  94 */
  95 void input_kclear(int ksym)
  96 {
  97         if(ksym < 0 || ksym >= SDLK_LAST)
  98         {
  99                 printf("input_kclear: invalid ksym %d\n", ksym);
 100                 SDL_Quit();
 101                 exit(1);
 102         }
 103
 104         keyboard_map[ksym] = 0;
 105 }