问改变特征控制器的高度引起单位抖动问题

EN

void Update() {
    if(Input.GetKeyDown(KeyCode.LeftControl)) {
        isCrouched = !isCrouched;
    }

    float newHeight = isCrouched ? crouchingHeight : originalHeight;
    controller.height = Mathf.Lerp(controller.height, newHeight, Time.deltaTime * smooth);

    Vector3 newCenter = isCrouched ? new Vector3(0, 0.2f, 0) : Vector3.zero;
    controller.center = Vector3.Lerp(controller.center, newCenter, Time.deltaTime * smooth);

    float newCamPos = isCrouched ? origCamPos.y - 0.2f : origCamPos.y;
    Vector3 newPos = new Vector3(cam.localPosition.x, newCamPos, cam.localPosition.z);

    cam.localPosition = Vector3.Lerp(cam.localPosition, newPos, Time.deltaTime * smooth);
}