draw_set_color(c_black);
ossafe_fill_rectangle(0, 0, room_width, 79);
ossafe_fill_rectangle(0, 79, 79, room_height);
ossafe_fill_rectangle(79, 320, 279, room_height);
ossafe_fill_rectangle(360, 320, room_width, room_height);
ossafe_fill_rectangle(640, 80, room_width, 239);
ossafe_fill_rectangle(3800, 240, room_width, room_height);
draw_set_color(c_white);