You can't jump in zero gravity (the moon has low gravity, not zero- or micro-gravity). In zero-gravity, if you launch off a surface, you'll just keep going, there's nothing dragging you back "down" to the surface. In zero-gravity, astronauts always make sure to stay tethered to a surface and avoid launching/jumping as much as possible for this reason. In some sci-fi movies I've seen magnetic boots used as an explanation for how characters can walk relatively normally in zero-gravity, but these wouldn't help in jumps because if the magnets were strong enough to force a jumper to land, they'd mess with their instruments.

What is the gameplay going to be like? That'll determine how these various animations will look, and how much work the artist will have to do (that latter bit is pretty important for an artist to know ahead of time xP).


By the way, you mentioned you'd like to see a free outline ahead of time. Do you want a cartoony style that relies on lineart? Many artists don't use outlines for non-cartoony stuff (and some don't even use them for cartoony stuff), so if you specify "outline" rather than something like a sketch, you might be pigeon-holing yourself into certain styles or working with certain types of artists.