using System.Collections;

namespace UnityEngine.XR.Templates.MR
{
    public class PositionAtStart : MonoBehaviour
    {
        [SerializeField]
        [Tooltip("The starting target.")]
        Transform m_Target;

        [SerializeField]
        [Tooltip("Adjusts the follow point from the target by this amount.")]
        Vector3 m_TargetOffset = Vector3.forward;

        bool m_IgnoreX = true;
        Vector3 m_TargetPosition;

        private const float k_StartDelay = 2.0f;

        // Start is called before the first frame update
        IEnumerator Start()
        {
            yield return new WaitForSeconds(k_StartDelay);
            var targetRotation = m_Target.rotation;
            var newTransform = m_Target;
            var targetEuler = targetRotation.eulerAngles;
            targetRotation = Quaternion.Euler
            (
                m_IgnoreX ? 0f : targetEuler.x,
                targetEuler.y,
                targetEuler.z
            );

            newTransform.rotation = targetRotation;
            m_TargetPosition = m_Target.position + newTransform.TransformVector(m_TargetOffset);
            transform.position = m_TargetPosition;
        }
    }
}