git.mutantstargoat.com Git - deeprace/blob - tools/mklevel/src/main.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include "goat3d.h"
   5
   6 int parse_args(int argc, char **argv);
   7
   8 const char *opt_fname;
   9 struct goat3d *gscn;
  10
  11 int main(int argc, char **argv)
  12 {
  13         if(parse_args(argc, argv) == -1) {
  14                 return 1;
  15         }
  16
  17         if(!(gscn = goat3d_create()) || goat3d_load(gscn, opt_fname) == -1) {
  18                 return 1;
  19         }
  20
  21         goat3d_free(gscn);
  22         return 0;
  23 }
  24
  25 int parse_args(int argc, char **argv)
  26 {
  27         static const char *usage_fmt = "Usage: %s [options] <goat3d scene file>\n"
  28                 "Options:\n"
  29                 " -h: print usage and exit\n\n";
  30         int i;
  31
  32         for(i=1; i<argc; i++) {
  33                 if(argv[i][0] == '-') {
  34                         if(argv[i][2]) {
  35                                 fprintf(stderr, "invalid option: %s\n", argv[i]);
  36                                 return -1;
  37                         }
  38                         switch(argv[i][1]) {
  39                         case 'h':
  40                                 printf(usage_fmt, argv[0]);
  41                                 exit(0);
  42
  43                         default:
  44                                 fprintf(stderr, "invalid option: %s\n", argv[i]);
  45                                 return -1;
  46                         }
  47                 } else {
  48                         if(opt_fname) {
  49                                 fprintf(stderr, "unexpected argument: %s\n", argv[i]);
  50                                 return -1;
  51                         }
  52                         opt_fname = argv[i];
  53                 }
  54         }
  55
  56         if(!opt_fname) {
  57                 fprintf(stderr, "pass a goat3d scene file to process\n");
  58                 return -1;
  59         }
  60
  61         return 0;
  62 }