feature: UI 통합

Assets/EnergyBar.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using UnityEngine.UI;
+using System.Collections;
+
+public class EnergyBar : MonoBehaviour
+{
+    [SerializeField] private Image fillImage;
+
+    private float currentHealth;
+    private const float maxHealth = 100f;
+
+    private void Start()
+    {
+        currentHealth = maxHealth;
+        UpdateHealthBar();
+        StartCoroutine(DrainEnergy());   // 코루틴 시작
+    }
+
+    private IEnumerator DrainEnergy()
+    {
+        while (currentHealth > 0)
+        {
+            yield return new WaitForSeconds(1f); // 1초 대기
+            TakeDamage(1f);                      // 1 감소
+        }
+    }
+
+    private void TakeDamage(float dmg)
+    {
+        currentHealth = Mathf.Max(currentHealth - dmg, 0);
+        UpdateHealthBar();
+    }
+
+    private void UpdateHealthBar()
+    {
+        fillImage.fillAmount = currentHealth / maxHealth;
+    }
+}

Assets/PausePanel.cs

@@ -0,0 +1,42 @@
+using UnityEngine;
+
+public class PausePanel : MonoBehaviour
+{
+    [Tooltip("화면을 어둡게 덮는 패널")]
+    [SerializeField] private GameObject pauseBackground;   // PauseBackground 패널
+
+    private bool isPaused;
+
+    private void Awake()
+    {
+        // 시작 시 비활성화
+        gameObject.SetActive(false);
+        if (pauseBackground) pauseBackground.SetActive(false);
+    }
+
+    /* ---------- Pause 버튼 ---------- */
+    public void PauseGame()
+    {
+        if (isPaused) return;
+        isPaused = true;
+
+        Time.timeScale = 0f;
+        AudioListener.pause = true;
+
+        if (pauseBackground) pauseBackground.SetActive(true);
+        gameObject.SetActive(true);
+    }
+
+    /* ---------- Return(Resume) 버튼 ---------- */
+    public void ResumeGame()
+    {
+        if (!isPaused) return;
+        isPaused = false;
+
+        Time.timeScale = 1f;
+        AudioListener.pause = false;
+
+        if (pauseBackground) pauseBackground.SetActive(false);
+        gameObject.SetActive(false);
+    }
+}