initial commit

Assets/Scripts/AreaClearanceManager.cs

@@ -0,0 +1,84 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+public class AreaClearanceManager : MonoBehaviour
+{
+    public static AreaClearanceManager Instance { get; private set; }
+
+    [SerializeField] private LevelExit levelExit;
+    private readonly HashSet<EnemyController> activeEnemies = new HashSet<EnemyController>();
+    private bool areaCleared = false;
+
+    public int RemainingEnemies => activeEnemies.Count;
+    public bool IsAreaCleared => areaCleared;
+
+    private void Awake()
+    {
+        if (Instance != null && Instance != this)
+        {
+            Destroy(gameObject);
+        }
+        else
+        {
+            Instance = this;
+        }
+    }
+
+    private void Start()
+    {
+        if (levelExit != null)
+        {
+            levelExit.gameObject.SetActive(false);
+        }
+    }
+
+    public void RegisterEnemy(EnemyController enemy)
+    {
+        if (enemy == null) return;
+
+        if (!activeEnemies.Contains(enemy))
+        {
+            activeEnemies.Add(enemy);
+            UpdateUI();
+        }
+    }
+
+    public void UnregisterEnemy(EnemyController enemy)
+    {
+        if (enemy == null) return;
+
+        if (activeEnemies.Contains(enemy))
+        {
+            activeEnemies.Remove(enemy);
+            UpdateUI();
+
+            if (activeEnemies.Count == 0 && !areaCleared)
+            {
+                UnlockArea();
+            }
+        }
+    }
+
+    private void UnlockArea()
+    {
+        areaCleared = true;
+        if (levelExit != null)
+        {
+            levelExit.gameObject.SetActive(true);
+        }
+
+        if (UIController.Instance != null)
+        {
+            UIController.Instance.ShowNotification("Area Cleared! Proceed to Exit.");
+        }
+    }
+
+    private void UpdateUI()
+    {
+        if (UIController.Instance != null)
+        {
+            UIController.Instance.UpdateZombiesRemaining(activeEnemies.Count);
+        }
+    }
+}
+