player health + game over

Assets/Prefabs/UI/GameUI.prefab

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Assets/Scripts/Manager/GameManager.cs

@@ -9,6 +9,9 @@ public class GameManager : MonoBehaviour
     public bool IsBuildMode = false;
     private Tower selectedTower;
 
+    public float health = 0;
+    public float startHealth = 100;
+
     public int CurrentNumEnemies = 0;
 
     /// <summary>

Assets/Scripts/UI/PlayerHealth.cs

@@ -1,14 +1,30 @@
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using TMPro;
 using UnityEngine;
+using UnityEngine.SceneManagement;
 
 public class PlayerHealth : MonoBehaviour
 {
+    public GameObject gameOver;
     public TMP_Text text;
 
     void Update()
     {
         text.text = $"{GameManager.Instance.health} / {GameManager.Instance.startHealth}";
+
+        if (GameManager.Instance.health <= 0)
+        {
+            StartCoroutine(GameOver());
+        }
     }
+
+    private IEnumerator GameOver()
+    {
+        gameOver.SetActive(true);
+        yield return new WaitForSecondsRealtime(5f);
+        SceneManager.LoadScene(0);
+    }
+
 }

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