3DOF physical quadruped

tried wide foot, didn't improve graded traction. if using graded terrain, experiment to find suitable sculpted texture. atm sticky foot mode makes torso more incline tolerant and applies small force appliers to feet which use tons of velocity on scenery.

the notion is to control swinging leg forward 90 degrees out of phase with leg lift, both sine (lift clipped sine) but phase in mod osc of 25% wasn't too 90 lookin, so 15% experientally fit better. reverse is done at 65, but ...

depending on what you want, at this point playability could be built with movers et c. the physicality is delicate eg. weight light enough for motors, realism becomes elusive. but i have no idea yet how much emulative performance can be maximised :d