Bake Biped Head Look At animation

(
local BipRoot= $
 
if BipRoot.controller.headobject != undefined then
(
    local BipHead = biped.getNode BipRoot #Head
    local BipHeadTrans_arry =#()
    setWaitCursor()
 
    local start = (animationRange.start /TicksPerFrame) as integer
    local end = (animationRange.end /TicksPerFrame) as integer
    local step = 1
    slidertime = 0
 
    for t = start to end by step do
    (
        at time t
        (
        append BipHeadTrans_arry (biped.getTransform BipHead #rotation)
        )
    )
    slidertime = 0
 
    BipRoot.controller.headobject = undefined
    biped.clearSelectedAnimation BipHead.controller
    for t = start to end by step do
    (
        at time t
        (
        biped.setTransform BipHead #rotation (BipHeadTrans_arry[t+1])  true
        )
    )
 
    setArrowCursor()
)
)