--- /dev/null
+#ifndef VOR_ARGS_H
+#define VOR_ARGS_H
+
+#include <argp.h>
+
+extern int opt_fullscreen;
+extern int opt_music;
+extern int opt_sound;
+extern float opt_bounciness;
+extern float opt_gamespeed;
+extern int opt_tail_engine;
+extern int opt_friction;
+
+struct argp argp;
+
+void init_opts(void);
+
+#endif // VOR_ARGS_H