Assets/Scripts/GameManager.cs

@@ -1,16 +1,31 @@
+using System.Collections;
+using TMPro;
 using UnityEngine;
 
 public class GameManager : MonoBehaviour
 {
+    public TextMeshProUGUI text;
+    public GameObject readyPanel;
+    public GameObject ready;
+    
     // Start is called once before the first execution of Update after the MonoBehaviour is created
     void Start()
     {
-        
+        StartCoroutine(GameSet());
     }
 
-    // Update is called once per frame
-    void Update()
+    private IEnumerator GameSet()
     {
-        
+        yield return new WaitForSeconds(3f);
+        text.text = "3";
+        yield return new WaitForSeconds(1f);
+        text.text = "2";
+        yield return new WaitForSeconds(1f);
+        text.text = "1";
+        yield return new WaitForSeconds(1f);
+        text.text = "GO!";
+        readyPanel.SetActive(false);
+        yield return new WaitForSeconds(3f);
+        ready.SetActive(false);
     }
 }