finished portal fundimentals

Assets/Scripts/GUI/RebindMenu.cs

@@ -0,0 +1,37 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class RebindMenu : MonoBehaviour
+{
+
+    [SerializeField] private Text instruction;
+
+    private ControlCard controlCard;
+
+    public void Open(ControlCard keybindCard)
+    {
+        controlCard = keybindCard;
+        instruction.text = $"Enter new key for\n" +
+                           $"{controlCard.MyCommand.Description}";
+        gameObject.SetActive(true);
+    }
+
+    public void Close()
+    {
+        gameObject.SetActive(false);
+    }
+
+    //On GUI provides a convenient method to get keycodes through Event data
+    void OnGUI()
+    {
+        if(!(Event.current.isKey && Input.anyKeyDown))
+            return;
+        
+        controlCard.MyCommand.Key = Event.current.keyCode;
+        controlCard.Refresh();
+        Close();
+    }
+
+}