Completed course 2 adn 3, working on 4

Assets/Scripts/UnitStateBubble.cs

@@ -0,0 +1,49 @@
+using UnityEngine;
+using UnityEngine.UI;
+
+public class UnitStateBubble : MonoBehaviour
+{
+    public Image stateBubble;
+    public Sprite idleSprite;
+    public Sprite gatherSprite;
+    public Sprite attackSprite;
+
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+    public void OnStateChange(UnitState state)
+    {
+        stateBubble.enabled = true;
+        switch(state)
+        {
+            case UnitState.Idle:
+            {
+                stateBubble.sprite = idleSprite;
+                break;
+            }
+            case UnitState.Gather:
+            {
+                stateBubble.sprite = gatherSprite;
+                break;
+            }
+            case UnitState.Attack:
+            {
+                stateBubble.sprite = attackSprite;
+                break;
+            }
+            default:
+            {
+                stateBubble.enabled = false;
+                break;
+            }
+        }
+    }
+}