fix: 아이콘이 정상적으로 출력되지 않는 오류 수정

Gameton-06/Assets/Gameton/Scripts/Skill/SkillButtonItem.cs

@@ -0,0 +1,67 @@
+using System.Collections;
+using System.Collections.Generic;
+using TMPro;
+using UnityEngine;
+using UnityEngine.Assertions;
+using UnityEngine.UI;
+
+namespace TON
+{
+    public class SkillButtonItem : MonoBehaviour
+    {
+        [SerializeField] private TextMeshProUGUI coolTimeText;
+        [SerializeField] private Image coolTimeDimd;
+        [SerializeField] private GameObject skillIcon;
+        [SerializeField] private GameObject lockImage;
+
+        public SkillBase skillBase;
+
+
+        public void Initalize(SkillBase skillData)
+        {
+            if (skillData != null)
+            {
+                skillData.OnSkillExecuted -= OnSkillExecuted;
+                // skillData.OnCooldownCompleted -= OnCooldownCompleted;
+            }
+
+            skillBase = skillData;
+            skillData.OnSkillExecuted += OnSkillExecuted;
+            // skillData.OnCooldownCompleted += OnCooldownCompleted;
+
+            skillIcon.SetActive(true);
+
+            // out 으로 받을 변수 초기화
+            Sprite loadedSkillImage = null;
+            Assert.IsTrue(AssetManager.Singleton.LoadSkillIcon(skillBase.SkillData.id, out loadedSkillImage));
+            skillIcon.GetComponent<Image>().sprite = loadedSkillImage;
+            lockImage.SetActive(false);
+        }
+
+        private void OnSkillExecuted()
+        {
+            UpdateCooldownUI();
+        }
+
+        private void UpdateCooldownUI()
+        {
+            if (coolTimeText == null || coolTimeDimd == null)
+            {
+                return; // UI가 삭제되었으면 업데이트 중단
+            }
+
+            coolTimeText.gameObject.SetActive(skillBase.CurrentCoolDown > 0); // 남은 쿨타임이 있을 때만 표시
+
+            if (coolTimeText.IsActive())
+            {
+                coolTimeText.text = $"{skillBase.CurrentCoolDown: 0}s"; // 정수 초단위 표시
+                coolTimeDimd.fillAmount = skillBase.CurrentCoolDown / skillBase.SkillCoolDown; // 1 → 0 으로 감소
+            }
+        }
+
+        void Update()
+        {
+            UpdateCooldownUI(); // UI 업데이트
+        }
+    }
+}