Better Error Messages

[pixlii]

Okay, so you know how whenever there is an infinite loop/lagslayer, the plot will tell you with a particle over the code piece that broke? What if we had something similar for when, say, a SET VARIABLE didn't have enough arguments, or a PLAYER ACTION that needed a location was missing one. Just telling us when something is missing from a code block would be great and I can't express how useful for gamedev it would be.