so as far as i can see.. which isnt far in my tent.. i honestly dont really know how having the () makes it different BUT i think it specifies what to use but so does just doing DEF RANDOM X,Y,Z (idk lol) so uh its basically like normal defs, some ones are for places, some are add ons, some are ran through the main loop and some even just for the most minor things. what i know is that DEF is