xr_body

The body that follows the person in a headset, in the way of a social VR avatar: three-point IK from the head and the two hands.

The eyes are the real head, and the body follows it:

• Lean, look and crouch move the upper body. The head bone reaches the real head: the hips drop for a crouch and shift toward a lean, the spine bends the rest of the way, and the neck and head turn toward the way the head faces (the body's IKRig, headTarget and lookTarget).
• The torso turns toward the way the head faces once the head is past a slack of 40 degrees, at 160 degrees per second, while the body is not walking.
• Real steps in the room carry the body once the head stands 0.3 m from it, through the character controller's own wall pass, so a wall stops the body. What the body was carried by is taken out of the eyes' offset (body.absorbed), so the eyes stay where the real head is.
• The legs step when the body moves or turns. A foot stays where it was planted until its home, beside the body, is 0.2 m away; then it steps (0.24 s, 8 cm high), one foot at a time, and plants. The IKRig foot targets carry the feet.
• Trackers place the hips and the feet: a device located under the role waist places the hips, and left_foot and right_foot place the feet in place of the stepping.

The pure rules are followStep, yawStep, stepFeet, footHomes, headBoneTarget and eyesFromHead. new(bodyEntity) makes a body and tick(body, frame, rig) runs one frame against it; drop(body, rig) takes the targets down. The presentation of xr_embodiment runs it.