Reminds me of red alert Cool job m8

It so happens that i am trying to design a more general user interface api for my game that the input will be this of pokemon like games. A and B buttons and arrow buttons from a keyboard. My idea is to use a class to model all kind of ui elements i.e Component that will be able to update its state based on input and redraw it self. And a second class called Manager  that would hold a list of all the "alive" Components and its task will be to collect the input, send it to all the elements so that they can update their state and finally call their draw methods. Based on this model i plan to design all the ui elements i will need.

If you are interested in the idea why not work together? Let me know 

a trick i used when i developed an asteroids clone is to advance the position of the bullet by 2 or 3 frames harcoded so that it has reached the ships perimeter

I like your work dude 

You could try some server side scripting either in java (jsp) or php.  Jsp can work with the java code of your game easier. You could also use a plain xml file if it is only for one database table ^^ There is a library that lets you alter and read xml files from a java programm