Hello,
In bits and pieces I've been working on a way to breach walls (stand-alone walls, not building building walls). I think I'm at the end of the process, and part of it includes a way to indicate to the player whether they are far enough away from the charge to avoid any negative effects. I've used two objects to achieve this, a balloon or a mobile phone, and while I prefer the phone I figured I'd canvas the crowd, and see if anyone had any other thoughts on how this could be done.
Balloon
Mobile Phone
Thanks.