Seems like a solid adaptation of Asteroids. Not sure what to do with the cheese ball (kill it? protect it?) and no score make it hard to judge how well I was doing though ;-)
1) Call add(_planet) before you add other stuff to State. Then moon will be beside asteroids. Not in front. In general, first create stuff and then add it. And keep in mind that thing you added later will be drawn over those you added earlier.
2) Add rocket rotating and make it smaller.
1) Call add(_planet) before you add other stuff to State. Then moon will be beside asteroids. Not in front. In general, first create stuff and then add it. And keep in mind that thing you added later will be drawn over those you added earlier.
2) Add rocket rotating and make it smaller.
Good luck!