Added health, respawning and Bullet spawners

Assets/Scripts/Core/UIManager.cs

@@ -1,19 +1,33 @@
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.UI;
+using TMPro;
 
 public class UIManager : MonoBehaviour
 {
+    public TextMeshProUGUI playerHealthLabel;
+    public TextMeshProUGUI gameOverLabel;
+    public Button restartButton;
+    private  GameManager gameManager;
 
     // Start is called before the first frame update
     void Start()
     {
-        
+        gameManager = FindObjectOfType<GameManager>();
     }
 
     // Update is called once per frame
     void Update()
     {
-        
+        //round player health 
+        playerHealthLabel.text = "Health: " + Mathf.Round(gameManager.player.health).ToString();
+
+        if (gameManager.player.health <= 0)
+        {
+            gameOverLabel.gameObject.SetActive(true);
+            restartButton.gameObject.SetActive(true);
+
+        }
     }
 }