Update a027 Minor

Update a027 is live!

This time, a new game mode! It's a work in progress, hence the minor update. When it's finished and has multiple levels it will make it an a030 release. That means a third of the way to 1.0! :D

There's also a new resource calculation system. This time, having 20,000 resource objects should not be drastically different from calculating 10 of them. Before, I was getting lag at 300, now it's smooth. I mean, if you ignore the island spread function ;)

Enjoy! :)

additions

- conquest mode (unfinished)
 - new menu
 - zoom controls (P, [ and ])

fixes

- tweaked enemy airship spawn rates (it still spawns too much in early game though)
 - fixed Z ordering bug where islands in the middle Y of screen flicker