Previously we were using a infinitely tall vertical cylinder
to push hand IK targets out of the body, this had the
side-effect of preventing the hands from being raised over
the head. Now, we collide against the same 3d capsule
used by the physics system for avatar collisions.
Now there are two sets of of jump takeoff and in-air animations.
* Run - Used when the character jumps or falls with a small forward velocity.
* Standing - Used when the character jumps or falls in-place or backward.
CharacterController
* increased takeoff duration to 250 ms
* increased takeoff to fly duration to 1100 ms
* added standing jump and in-air animations
* added 250 milisecond delay between ground and hover, to prevent going into hover when walking over cracks.
* take-off to in-air transitions now use the new snapshotPrev interp type for a smoother tweening.
In addition to the existing line probe ground check, also check if the bottom sphere of the capsule is contact with any geometry before going into hover mode.
This should prevent going into the fly animation when standing or walking on collision shapes with small gaps between elements.
Compute HMD facing moving average.
When the moving average diverges from the hips by more then 45 degrees, recenter the body.
Also, the follow code has been changed, instead of a follow velocity being passed to the CharacterController
a desired target is passed. The CharacterController homes toward it's target based on the time remaining.
Any follow deltas applied to move the avatar's position closer to it's target is stored and re-applied
to the bodySensorMatrix. This centralizes the moving/homing code to one place, the CharacterContoller.
A new FollowHelper class was also introduced, it groups together the data and logic necessary to perform the
re-centering/follow procedure. This "hopefully" makes it easier to maintain.
