using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class AutoScaleUI : MonoBehaviour
{
    [SerializeField] private Camera targetCamera;
    [SerializeField] private float distanceMultiplier = 0.01f;

    private Canvas canvas;
    private Vector3 initialScale;

    public Button button;
    public TextMeshProUGUI text;
    //public static Transform Camera;
    void Start()
    {
        //Debug.Log("°æ±¾ºÅ 1.1.1");
        targetCamera = UnityEngine.Camera.main;
        //Camera = UnityEngine.Camera.main.transform;
        canvas = GetComponent<Canvas>();
        initialScale = transform.localScale;
        //Debug.Log("°æ±¾ºÅ 1.1.1");
    }

    void LateUpdate()
    {
        //transform.eulerAngles = Camera.eulerAngles;

        Vector3 cameraToCanvasPlane = transform.position - targetCamera.transform.position;
        float distance = Vector3.Dot(cameraToCanvasPlane, targetCamera.transform.forward);
        if (distance * distanceMultiplier > 1)
            distance = 1f / distanceMultiplier;
        transform.localScale = initialScale * distance * distanceMultiplier;
    }

}