using UnityEngine;

namespace TKS.OutGame
{
    /// <summary>등장 튀김(Fable 제안서 §4-2 「별 0.15 s 간격 scale 1.4→1」) — 켜질 때마다 delay 뒤 from → 1 · 시간 = 실시간(일시정지 무관).</summary>
    public class UiPop : MonoBehaviour
    {
        public float delay;
        public float from = 1.4f;
        public float duration = 0.18f;
        float t0;

        void OnEnable()
        {
            Play();
        }

        public void Play()
        {
            t0 = Time.unscaledTime + delay;
            transform.localScale = Vector3.zero;
        }

        void Update()
        {
            float t = Time.unscaledTime - t0;
            if (t < 0f)
            {
                transform.localScale = Vector3.zero;
                return;
            }
            float k = duration > 0f ? Mathf.Clamp01(t / duration) : 1f;
            transform.localScale = Vector3.one * Mathf.Lerp(from, 1f, 1f - (1f - k) * (1f - k));
        }
    }
}