using UnityEngine;

/// <summary>
/// Turns the hour, minute and second hands to the player's own local time (the device clock).
/// Hands rotate about this object's local Z axis; 12 o'clock is local +Y.
/// </summary>
public class WallClock : MonoBehaviour
{
    public Transform hourHand, minuteHand, secondHand;
    [Tooltip("Sweep the second hand smoothly instead of ticking.")]
    public bool smoothSeconds = false;

    void Update()
    {
        var now = System.DateTime.Now;
        float sec = now.Second + (smoothSeconds ? now.Millisecond / 1000f : 0f);
        float min = now.Minute + sec / 60f;
        float hour = (now.Hour % 12) + min / 60f;
        Set(hourHand, hour / 12f);
        Set(minuteHand, min / 60f);
        Set(secondHand, sec / 60f);
    }

    // Clockwise as seen from the front: negative Z rotation, with the face looking toward local -Z
    static void Set(Transform hand, float turn)
    {
        if (hand != null) hand.localRotation = Quaternion.Euler(0f, 0f, -turn * 360f);
    }
}