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/* $Id: option.c,v 1.60 2005/07/01 03:23:10 oohara Exp $ */
/* VERSION */
#include <config.h>
#include <stdio.h>
/* strcmp */
#include <string.h>
/* malloc, atexit */
#include <stdlib.h>
/* COPYRIGHT_STRING */
#include "const.h"
#include "option.h"
static option *option_pointer = NULL;
static void option_quit(void);
/* return 0 on success, 1 on error */
int
set_option(int argc, char *argv[])
{
int i;
/* sanity check */
if (argc <= 0)
{
fprintf(stderr, "set_option: argc is non-positive\n");
return 1;
}
if (argv == NULL)
{
fprintf(stderr, "set_option: argv is NULL\n");
return 1;
}
if (option_pointer != NULL)
free(option_pointer);
option_pointer = (option *) malloc(sizeof(option));
if (option_pointer == NULL)
{
fprintf(stderr, "set_option: malloc failed\n");
return 1;
}
if (atexit(option_quit) != 0)
{
fprintf(stderr, "set_option: cannot register option_quit to exit\n");
option_quit();
return 1;
}
option_pointer->free_select = 0;
option_pointer->full_screen = 0;
option_pointer->help = 0;
option_pointer->slow = 0;
option_pointer->version = 0;
for (i = 1; i < argc; i++)
{
if (strcmp(argv[i], "--free-select") == 0)
{
option_pointer->free_select = 1;
}
else if (strcmp(argv[i], "--full-screen") == 0)
{
option_pointer->full_screen = 1;
}
else if (strcmp(argv[i], "--help") == 0)
{
option_pointer->help = 1;
/* ignore the rest */
break;
}
else if (strcmp(argv[i], "--slow") == 0)
{
option_pointer->slow = 1;
}
else if (strcmp(argv[i], "--version") == 0)
{
option_pointer->version = 1;
/* ignore the rest */
break;
}
else
{
fprintf(stderr, "set_option: unknown option (arg %d)\n", i);
return 1;
}
}
return 0;
}
/* return 1 (true) or 0 (false) */
int
cheating(void)
{
/* sanity check */
if (option_pointer == NULL)
{
fprintf(stderr, "cheating: option_pointer is NULL\n");
return 0;
}
if (option_pointer->free_select != 0)
return 1;
if (option_pointer->slow != 0)
return 1;
return 0;
}
void
do_help(void)
{
printf("Usage: dangen [options]\n"
"shoot 'em up game where accurate shooting matters\n"
"Options:\n"
);
printf(" --free-select allow selecting any stage\n"
" --full-screen run the game in the full screen mode\n"
" --help print this message\n"
);
printf(" --slow enable the slow mode (CAPS lock)\n"
);
printf(" --version print version information\n"
"\n"
"Report bugs to <oohara@libra.interq.or.jp>.\n"
);
}
void
do_version(void)
{
printf("dangen %s\n", VERSION);
printf("%s\n", COPYRIGHT_STRING);
printf("This program is free software; you can redistribute it and/or\n"
"modify it under the terms of either the GNU General Public License\n"
"version 2 or the Artistic License Version 2.0beta5.\n");
printf("dangen comes with NO WARRANTY, to the extent permitted by law.\n");
}
const option *
get_option(void)
{
return (const option *) option_pointer;
}
static void
option_quit(void)
{
if (option_pointer != NULL)
{
free(option_pointer);
option_pointer = NULL;
}
}
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