using DG.Tweening;
using UnityEngine;

public class ZoomTween : MonoBehaviour
{
    [Header("Material and Property")]
    public Material targetMaterial;
    [Tooltip("Zoom range e.g., from 0.1 (zoomed in) to 5 (zoomed out)")]
    public float minZoom = 0.1f;
    public float maxZoom = 2f;
    public float speed = 1f;

    [Tooltip("Name of the shader property (must match _ZoomUvAmount)")]
    private readonly string zoomProperty = "_ZoomUvAmount";

    private float t;

    void Update()
    {
        if (!targetMaterial) return;

        t += Time.deltaTime * speed;

        // Animate using ping-pong
        float zoom = Mathf.Lerp(minZoom, maxZoom, Mathf.PingPong(t, 1f));
        targetMaterial.SetFloat(zoomProperty, zoom);
    }
}