Character head angles towards cursor?

-- note: reverse only works if loop is enabled. (reverse means play forward then backwards)
-- note: loop amount can be increased by adding higher rotation value. i.e: 720 will rotate 2x
-- note: rotation can also be done in the opposite direction by using a negative value. i.e: -180
-- example:  rotateObject("granny", 100, 170, 3000, easeQuintOut, false, false)

function rotateObject(obj, scale, degree, delay, easing, reverse, loop)
 obj = Objects[obj]
 obj.RotationCenter = {x = -1, y = obj.ObjectSprite.SpriteSprite:getPosition().y}
 obj.Rotation = obj.Rotation; obj.Scale = obj.Scale
 scale = (scale / 100) -- convert scale percent to decimal
 degree = (degree * math.pi) / 180 -- convert degree to radian
 obj:to(delay, {Rotation = degree, Scale = scale}, easing, loop, reverse)
end

local deg = 43

local a = (deg / 360) * (2 * math.pi)
local b = (deg * math.pi) / 180
print(a, b)

function onMouseEvent(eventType, mousePosition)
  if eventType == eEvtMouseMove then
   if getCursorPos().x < game.CurrentCharacter.CharacterPosition.x - 25 then
    ActiveAnimations["char_head"].AnimationFirstFrame = 1; ActiveAnimations["char_head"].AnimationLastFrame = 1
  elseif getCursorPos().x > game.CurrentCharacter.CharacterPosition.x + 25 then
   ActiveAnimations["char_head"].AnimationFirstFrame = 3; ActiveAnimations["char_head"].AnimationLastFrame = 3
   else
    ActiveAnimations["char_head"].AnimationFirstFrame = 1; ActiveAnimations["char_head"].AnimationLastFrame = 1
   end
 end
end
 
registerEventHandler("mouseEvent", "onMouseEvent", {eEvtMouseMove, eEvtMouseLeftButtonDoubleClick, eEvtMouseLeftButtonDown, eEvtMouseLeftButtonUp, eEvtMouseLeftButtonHold, eEvtMouseLeftButtonHolding, eEvtMouseRightButtonDoubleClick, eEvtMouseRightButtonDown, eEvtMouseRightButtonUp, eEvtMouseMiddleButtonDown, eEvtMouseMiddleButtonUp, eEvtMouseWheelUp, eEvtMouseWheelDown})