My idea is a digger that spits out as much particles (minus gold it harvests) from it's back as it destroys in a "normal digger" way, thus allowing an actor to move in an underground "bubble". This would make gold digging (if anyone does it anyway) and siege warfare safer. Can anyone create this?

EDIT: uh umm it seems I misunderstood the concept of a "mass driver". It doesn't change the description of the device I want though.

I think what would be best is to have the digger eject shells of concrete behind you (like a gun does, only on a digger)

Then even when you 'dig the air' ground will appear from nowhere.

That would be really useful if you're weighed down by your jetpack

You could have it check for particles moving behind you then spew out dirt if both the gun is firing and particles are behind you.

Yeah, good point.

Doesn't the digger work by ''sucking'' particles into it? Maybe you could the digger only ejecting matter if its taking some in.

No, it just destroys particles.
It works like any other gun.

No, it destroys particles then the loose ones fly towards the actor that's holding the gun. That's how you get gold, by picking it up.

Exactly.

Ah, okay, thanks for clarifying.