There are so many posts in this thread that aren't related to electronics. I think those people actually don't know how to read...
Anyway, as I was saying before my post got buried under a pile of off topic crap (mixed with some ok ideas):
Colored Actuators!
Adding more wire colors is very useful, but it doesn't solve the problem of controlling actuators that are surrounded by other actuators.
For example, if you are making a 7 segment display, or other display thing, you would still have to leave gaps between the outer segments. Otherwise, the wires that control the inner segment(s) will interfere with the outer segments.
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I'm sure this has already been said(and possibly even added) but we absolutely need a switch that gets activated from being hit by a weapon. Because there are lots of possibilities with that.
YES! Especially if there was a switch that was activated by the dart trap, because then we could build a diode! Then we wouldn't have to use hoiking as much.
For example:
This is my 3x5 pixel display. Right now the controller is huge (the part in the image shows the controls for displaying the numbers 0,1,2,3,4, and 5), because the dummy has to activate the pressure plates. But if there was a switch activated by darts, I could replace the pressure plates with that switch, and make it less than half the size it is now.