feature: Added menu functionality

Assets/Scripts/Flow/WinScreen.cs

@@ -0,0 +1,33 @@
+using System;
+using DG.Tweening;
+using UnityEngine;
+using UnityEngine.Serialization;
+
+namespace Flow {
+	public class WinScreen : MonoBehaviour {
+		[SerializeField] private CanvasGroup canvasGroup;
+
+		[SerializeField] private RectTransform winBackground;
+		[SerializeField] private RectTransform winText;
+
+		private bool _hasWon;
+		
+		public void Win() {
+			_hasWon = true;
+			
+			canvasGroup.blocksRaycasts = true;
+			canvasGroup.DOFade(1f, .5f);
+			
+			winBackground.localScale = new Vector3(0, 0, 1);
+			winText.localScale = new Vector3(0, 0, 1);
+			winBackground.DOScale(1f, .25f).SetDelay(.5f).SetEase(Ease.OutBack);
+			winText.DOScale(1f, .25f).SetDelay(.55f).SetEase(Ease.OutBack);
+		}
+
+		private void Update() {
+			if (_hasWon && Input.anyKeyDown) {
+				Application.Quit();
+			}
+		}
+	}
+}