Miroirs/c-urs_-toil-s
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add arguments parsing usgin getopt, -l to set the level, -b for no colors, -h for help, with --long options too

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Gwenhael Le Moine 2011-07-03 22:12:17 +02:00
parent a4ae3a6f83
commit b47723c590
1 changed files with 65 additions and 2 deletions
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67
star.c
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@ -5,6 +5,7 @@
#include <stdlib.h>
#include <ncurses.h>
#include <getopt.h>
char *levels[] = { "################"
"#@## x#H#"
@ -285,6 +286,11 @@ typedef enum {
RIGHT = 'r'
} direction;
struct options {
int black_and_white;
int starting_level;
};
struct state {
char board[ LEVEL_HEIGHT * LEVEL_WIDTH ];
char moving;
@ -458,10 +464,67 @@ void display_level( struct state *s )
refresh();
}
int parse_args( int argc, char* argv[], struct options *o )
{
int option_index;
char c = '?';
char* optstring = "l:bhv";
static struct option long_options[] = {
{"black-and-white" , no_argument, NULL, 'b'},
{"level" , required_argument, NULL, 'l'},
{"help" , no_argument, NULL, 'h'},
{"version" , no_argument, NULL, 'v'},
{0, 0, 0, 0}
};
char* help_text = "ngstar [options]\n"
"\t-v --version :\n\t\t show version\n"
"\t-h --help :\n\t\t what you are reading\n"
"\t-b --black-and-white :\n\t\t don't use colors (ncurses)\n"
"\t-l<n> --level=<n> :\n\t\t wrap to level n\n";
while(c != EOF) {
c = getopt_long(argc, argv, optstring, long_options, &option_index);
switch(c) {
case 'h' :
printf( "%s\n", help_text );
exit(0);
break;
case 'b' :
o->black_and_white = 1;
break;
case 'l' :
o->starting_level = atoi( optarg );
break;
case '?' :
case ':' :
exit(0);
break;
default : break;
}
}
if (optind < argc) {
fprintf( stderr, "Invalid arguments :\n" );
while (optind < argc)
fprintf( stderr, "%s\n", argv[optind++] );
}
return optind;
}
int main( int argc, char* argv[] )
{
int key;
struct state *s = malloc( sizeof( struct state ) );
struct options *o = malloc( sizeof( struct options ) );
o->starting_level = 0;
o->black_and_white = 0;
parse_args( argc, argv, o ); /* not caring about return value here, it's treated inside the function */
/* ncurses */
WINDOW *w_main = initscr( ); /* why can't stdscr be used transparently? */
@ -470,7 +533,7 @@ int main( int argc, char* argv[] )
nonl();
intrflush( w_main, FALSE );
keypad( w_main, TRUE );
if ( has_colors( ) == TRUE ) {
if ( ( ! o->black_and_white ) && has_colors( ) == TRUE ) {
start_color( );
init_pair( color_CUBE, COLOR_RED, COLOR_BLACK );
init_pair( color_BALL, COLOR_BLUE, COLOR_BLACK );
@ -486,7 +549,7 @@ int main( int argc, char* argv[] )
s->nb_levels = sizeof( levels ) / sizeof( levels[ 0 ] );
/* load the first level to start the loop in a correct state */
load_level( s, levels, 0 );
load_level( s, levels, o->starting_level );
do {
if ( won_or_not( s ) ) {