Function calculateSmoothHeadRotation

calculateSmoothHeadRotation(
    currentRotation: Euler,
    targetPosition: Vector3,
    headPosition: Vector3,
    smoothing?: number,
): Euler
Calculate smooth head rotation toward target

Uses linear interpolation (lerp) for smooth head turning. Each Euler angle component is interpolated independently.
Parameters
- currentRotation: Euler
  Current head rotation
- targetPosition: Vector3
  Position to look at
- headPosition: Vector3
  Current head position in world space
- smoothing: number = 0.1
  Smoothing factor (0-1, lower = smoother)
Returns Euler
New head rotation

Korean
부드러운머리회전계산
- Defined in systems/animation/systems/HeadMovements.ts:262