added optcfg and fixed camera xform

[cyberay] / src / game.c

diff --git a/src/game.c b/src/game.c
index b314e49..3ea6ca8 100644 (file)
--- a/src/game.c
+++ b/src/game.c
@@ -1,3 +1,54 @@
 #include "game.h"
+#include "optcfg.h"
 
 struct level lvl;
+struct options opt;
+
+enum { OPT_SIZE, OPT_HELP };
+
+static struct optcfg_option options[] = {
+       {'s', "size", OPT_SIZE, "rendering resolution (WxH)"},
+       {'h', "help", OPT_HELP, "print usage and exit"},
+       OPTCFG_OPTIONS_END
+};
+
+static int opt_handler(struct optcfg *o, int opt, void *cls);
+
+int init_options(int argc, char **argv)
+{
+       struct optcfg *optcfg;
+
+       opt.width = 1280;
+       opt.height = 800;
+
+       optcfg = optcfg_init(options);
+       optcfg_set_opt_callback(optcfg, opt_handler, argv[0]);
+       optcfg_parse_config_file(optcfg, "cyberay.conf");
+       if(optcfg_parse_args(optcfg, argc, argv) == -1) {
+               return -1;
+       }
+
+       optcfg_destroy(optcfg);
+       return 0;
+}
+
+static int opt_handler(struct optcfg *o, int optid, void *cls)
+{
+       char *val;
+
+       switch(optid) {
+       case OPT_SIZE:
+               if(!(val = optcfg_next_value(o)) || sscanf(val, "%dx%d", &opt.width, &opt.height) != 2) {
+                       fprintf(stderr, "size: expected <width>x<height>\n");
+                       return -1;
+               }
+               break;
+
+       case OPT_HELP:
+               printf("Usage: %s [options]\n", (char*)cls);
+               printf("Options:\n");
+               optcfg_print_options(o);
+               exit(0);
+       }
+       return 0;
+}