Sunday Update:
I think I've got all the mechanics worked out now (I'll probably be saying that up to the last day!) and it's all working properly now. I have all the beam modifiers I need - redirect, splitter, teleport, all of them can be rotated 45 degrees (was 90 before) and placed on an unoccupied floor tile, which are highlighted when you have a piece selected. Each piece also lights up with the correct colour when the beam hits it, which is the main purpose of the game - to brighten the place up with Davids magic torch!
I've made a start with the environment art and making an actual level with the basic set of pieces I made. I also did a first pass on the lighting and tried some of the nice new post effects that are now part of Unity. They're blooming marvelous!
