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Assets/Scripts/UI/CanvasController.cs

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+using System.Collections;
+using System.Collections.Generic;
+using MyBox;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class CanvasController : MonoBehaviour {
+
+	[SerializeField] Sprite[] orbCountdown;
+	[SerializeField] Image orb;
+	
+	// Start is called before the first frame update
+	[ButtonMethod]
+	void Start() {
+		StartCoroutine(Countdown());
+	}
+
+	// Update is called once per frame
+	void Update(){
+		
+	}
+
+	IEnumerator Countdown() {
+		for (int i = 0; i < 10; ++i) {
+			orb.sprite = orbCountdown[i];
+			yield return new WaitForSeconds(1f);
+		}
+		GameManager.instance.SelectRandomEffect();
+	}
+}