Added some code

source/ctr.c

@@ -0,0 +1,30 @@
+#include <lua.h>
+#include <lauxlib.h>
+
+int load_gfx_lib(lua_State *L);
+int load_os_lib(lua_State *L);
+
+static const struct luaL_Reg ctr_lib[] = {
+	{ NULL, NULL }
+};
+
+struct { char *name; int (*load)(lua_State *L); } ctr_libs[] = {
+	{ "gfx", load_gfx_lib },
+	{ NULL, NULL },
+};
+
+int luaopen_ctr_lib(lua_State *L) {
+	luaL_newlib(L, ctr_lib);
+
+	for (int i = 0; ctr_libs[i].name; i++) {
+		ctr_libs[i].load(L);
+		lua_setfield(L, -2, ctr_libs[i].name);
+	}
+
+	return 1;
+}
+
+void load_ctr_lib(lua_State *L) {
+	load_os_lib(L);
+	luaL_requiref(L, "ctr", luaopen_ctr_lib, 0);
+}