vrseasons
annotate src/opt.cc @ 0:393ef1143c9c
VR seasons
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Tue, 07 Apr 2015 11:16:56 +0300 |
| parents | |
| children | 65c2e37c48b2 |
| rev | line source |
|---|---|
| nuclear@0 | 1 #include <stdio.h> |
| nuclear@0 | 2 #include "opt.h" |
| nuclear@0 | 3 |
| nuclear@0 | 4 enum { |
| nuclear@0 | 5 OPT_SIZE, |
| nuclear@0 | 6 OPT_FULLSCREEN, |
| nuclear@0 | 7 OPT_WINDOWED, |
| nuclear@0 | 8 OPT_VR, |
| nuclear@0 | 9 OPT_HELP, |
| nuclear@0 | 10 |
| nuclear@0 | 11 NUM_OPTS |
| nuclear@0 | 12 }; |
| nuclear@0 | 13 static const char *optname[] = { |
| nuclear@0 | 14 "size", "fullscreen", "windowed", "vr", "help", 0 |
| nuclear@0 | 15 }; |
| nuclear@0 | 16 |
| nuclear@0 | 17 static int get_option(const char *str); |
| nuclear@0 | 18 |
| nuclear@0 | 19 void default_opt(Options *opt) |
| nuclear@0 | 20 { |
| nuclear@0 | 21 opt->xres = 1280; |
| nuclear@0 | 22 opt->yres = 800; |
| nuclear@0 | 23 opt->fov = 50.0; |
| nuclear@0 | 24 opt->fullscreen = false; |
| nuclear@0 | 25 opt->use_vr = false; |
| nuclear@0 | 26 } |
| nuclear@0 | 27 |
| nuclear@0 | 28 bool parse_args(Options *opt, int argc, char **argv) |
| nuclear@0 | 29 { |
| nuclear@0 | 30 for(int i=1; i<argc; i++) { |
| nuclear@0 | 31 if(argv[i][0] == '-') { |
| nuclear@0 | 32 int o = get_option(argv[i] + 1); |
| nuclear@0 | 33 switch(o) { |
| nuclear@0 | 34 case OPT_SIZE: |
| nuclear@0 | 35 if(sscanf(argv[++i], "%dx%d", &opt->xres, &opt->yres) != 2) { |
| nuclear@0 | 36 fprintf(stderr, "invalid argument to option: %s\n", argv[i - 1]); |
| nuclear@0 | 37 return false; |
| nuclear@0 | 38 } |
| nuclear@0 | 39 break; |
| nuclear@0 | 40 |
| nuclear@0 | 41 case OPT_FULLSCREEN: |
| nuclear@0 | 42 opt->fullscreen = true; |
| nuclear@0 | 43 break; |
| nuclear@0 | 44 case OPT_WINDOWED: |
| nuclear@0 | 45 opt->fullscreen = false; |
| nuclear@0 | 46 break; |
| nuclear@0 | 47 |
| nuclear@0 | 48 case OPT_VR: |
| nuclear@0 | 49 opt->use_vr = true; |
| nuclear@0 | 50 break; |
| nuclear@0 | 51 |
| nuclear@0 | 52 case OPT_HELP: |
| nuclear@0 | 53 printf("options:\n"); |
| nuclear@0 | 54 for(int j=0; optname[j]; j++) { |
| nuclear@0 | 55 printf(" -%s\n", optname[j]); |
| nuclear@0 | 56 } |
| nuclear@0 | 57 break; |
| nuclear@0 | 58 } |
| nuclear@0 | 59 } |
| nuclear@0 | 60 } |
| nuclear@0 | 61 } |
| nuclear@0 | 62 |
| nuclear@0 | 63 static int get_option(const char *str) |
| nuclear@0 | 64 { |
| nuclear@0 | 65 for(int i=0; optname[i], i++) { |
| nuclear@0 | 66 if(strcmp(str, optname[i]) == 0) { |
| nuclear@0 | 67 return i; |
| nuclear@0 | 68 } |
| nuclear@0 | 69 } |
| nuclear@0 | 70 return -1; |
| nuclear@0 | 71 } |