Space Traffic Control v4
Woo! Lots of changes!
Added a save game feature: If you've not completed level 1, it'll just show you start button. If you HAVE completed level 1, it'll NOT show you the start button and show you a continue button instead which then leads you to a new screen that shows you the levels you have unlocked (currently there are only 2 levels). Clicking on either of the Level names loads the level.
Added a wave counter aka Wave 1 of 2
Added a moon buggy that grants you an extra life when clicked on
Added a system that checks for a score milestone (currently set low to 1000) and gives you an extra life. FYI - Lives are capped at 4
Slightly increased the size of the ships (This is just a temp fix until we do a full scale/sizing pass on the entire UI).