SweetSalt

I only mentioned assassin droids as an example because I believe they are the most simplest users of shields in jka game. The trick is to recognize enemy/droideka blaster bolts in the script. Then the shield will know which blaster bolts must be passed and which blocked/reflected. Or source of droideka blaster bolts can be right before the shield... The simplest solution is usually the best, lol.

You can create your own droideka class based on game source, but I believe this requires a lot of work and research. Assassin droid can use shields for example and they are more easier to understand than Galak because of less complexity. Official source code of Assassin Droid AI