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main(): Use getopts for parameter parsing

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This commit is contained in:
Petr Baudis 2011-12-03 15:43:08 +01:00
parent 346b1f05a7
commit f9f5becd16
1 changed files with 18 additions and 2 deletions
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20
main.cc
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@ -52,8 +52,24 @@ clear(void)
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
class map map(argc < 2 ? 40 : atoi(argv[1]), argc < 3 ? 20 : atoi(argv[2])); int w = 40, h = 20;
int herbs = argc < 4 ? map.w * map.h / world::herb_rate : atoi(argv[3]); int herbs_opt = -1;
int opt;
while ((opt = getopt(argc, argv, "h:x:y:")) != -1) {
switch (opt) {
case 'h': herbs_opt = atoi(optarg); break;
case 'x': w = atoi(optarg); break;
case 'y': h = atoi(optarg); break;
default: /* '?' */
fprintf(stderr, "Usage: %s [-h HERBS] [-x WIDTH] [-y HEIGHT]\n",
argv[0]);
exit(EXIT_FAILURE);
}
}
class map map(w, h);
int herbs = herbs_opt < 0 ? map.w * map.h / world::herb_rate : herbs_opt;
#ifdef RAWIO #ifdef RAWIO
if(rawio_cfg(&map)==-1) if(rawio_cfg(&map)==-1)