Subversion Repositories Games.Rick Dangerous

/*

 * src/sysarg.c

 *

 * Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net). All rights reserved.

 *

 * The use and distribution terms for this software are contained in the file

 * named README, which can be found in the root of this distribution. By

 * using this software in any fashion, you are agreeing to be bound by the

 * terms of this license.

 *

 * You must not remove this notice, or any other, from this software.

 */

/*

 * 20021010 added test to prevent buffer overrun in -keys parsing.

 */

#include <stdlib.h> // atoi

#include <string.h> // strcmp

#include <SDL.h>

#include "system.h"

#include "game.h"

#include "maps.h"

#include "syssnd.h"

int sysarg_args_period = 0;

int sysarg_args_map = 0;

int sysarg_args_submap = 0;

int sysarg_args_score = 0;

int sysarg_args_nosound = 0;

int sysarg_args_vol = 0;

extern U8 want_infinitelives;

extern U8 want_fullscreen;

extern U8 want_filter;

extern U8 enable_endkey;

/*

 * Fail

 */

void sysarg_fail (char *msg)

{

   sys_printf ("Rick Dangerous: %s\n"

               "usage: Rick Dangerous [<options>]\n"

               "options:\n"

               " -h, --help : Display this information.\n"

               " -f, --fullscreen : Start fullscreen.\n"

               " -episode <1-4> : Start directly at the first map of the specified episode.\n"

               " -map <1-47> : Start directly at the specified map.\n"

               " -score <N> : Start directly with score N.\n"

               " -s <0-99>, --speed <0-99> : Set the game speed to a given value.\n"

               " -vol <0-10> : Set the sound volume to a given value.\n"

               " -n, --nosound : Disable sound completely.\n"

               " -x, --togglefilter : Start with xBRZ filter disabled (F7 to enable).\n"

               " -i, --infinitelives : Enable infinite lives.\n"

               " -e, --noendkey : Disable END key.\n",

               msg);

   exit (1);

}

/*

 * Read and process arguments

 */

void sysarg_init (int argc, char **argv)

{

   int i;

   for (i = 1; i < argc; i++)

   {

      if (!strcmp (argv[i], "-h") || !strcmp (argv[i], "--help"))

         sysarg_fail ("help");

      else if (!strcmp(argv[i], "-f") || !strcmp(argv[i], "--fullscreen"))

         want_fullscreen = TRUE;

      else if (!strcmp(argv[i], "-episode"))

      {

         if (++i == argc)

            sysarg_fail ("missing episode number");

         sysarg_args_map = atoi(argv[i]) - 1;

         if (sysarg_args_map < 0 || sysarg_args_map >= MAP_NBR_MAPS-1)

            sysarg_fail ("invalid episode number");

      }

      else if (!strcmp(argv[i], "-map"))

      {

         if (++i == argc)

            sysarg_fail ("missing submap number");

         sysarg_args_submap = atoi(argv[i]) - 1;

         if (sysarg_args_submap < 0 || sysarg_args_submap >= MAP_NBR_SUBMAPS)

            sysarg_fail ("invalid submap number");

      }

      // Pierre-Marie Baty -- addition: start score

      else if (!strcmp(argv[i], "-score"))

      {

         if (++i == argc)

            sysarg_fail ("missing start score number");

         sysarg_args_score = atoi(argv[i]) - 1;

      }

      else if (!strcmp(argv[i], "-s") || !strcmp(argv[i], "--speed"))

      {

         if (++i == argc)

            sysarg_fail ("missing speed value");

         sysarg_args_period = atoi(argv[i]) - 1;

         if (sysarg_args_period < 0 || sysarg_args_period > 99)

            sysarg_fail ("invalid speed value");

      }

      else if (!strcmp(argv[i], "-vol"))

      {

         if (++i == argc)

            sysarg_fail ("missing volume");

         sysarg_args_vol = atoi(argv[i]) - 1;

         if (sysarg_args_vol < 0 || sysarg_args_vol >= SYSSND_MAXVOL)

            sysarg_fail ("invalid volume");

      }

      else if (!strcmp(argv[i], "-n") || !strcmp(argv[i], "--nosound"))

         sysarg_args_nosound = 1;

      else if (!strcmp(argv[i], "-x") || !strcmp(argv[i], "--togglefilter"))

         want_filter = FALSE;

      else if (!strcmp(argv[i], "-i") || !strcmp(argv[i], "--infinitelives"))

         want_infinitelives = TRUE;

      else if (!strcmp(argv[i], "-e") || !strcmp(argv[i], "--disableendkey"))

         enable_endkey = FALSE;

      else

         sysarg_fail ("invalid argument(s)");

   }

   // this is dirty (sort of)

   if (sysarg_args_submap >= 0 && sysarg_args_submap < 9)

      sysarg_args_map = 0;

   if (sysarg_args_submap >= 9 && sysarg_args_submap < 20)

      sysarg_args_map = 1;

   if (sysarg_args_submap >= 20 && sysarg_args_submap < 38)

      sysarg_args_map = 2;

   if (sysarg_args_submap >= 38)

      sysarg_args_map = 3;

   if (sysarg_args_submap == 9 || sysarg_args_submap == 20 || sysarg_args_submap == 38)

      sysarg_args_submap = 0;

   //if (sysarg_args_submap == 18)

   //   sysarg_args_submap = 19;

}