feat: ui transparency when not hovered

Assets/Scripts/View/UIVisibility.cs

@@ -0,0 +1,28 @@
+using System;
+using DG.Tweening;
+using UnityEngine;
+using UnityEngine.EventSystems;
+using UnityEngine.UI;
+
+namespace View {
+	public class UIVisibility : MonoBehaviour {
+		[SerializeField] private CanvasGroup ui;
+		[SerializeField] private float fadeDuration = .5f;
+
+		private bool _wasVisible = true;
+
+		private void Update() {
+			bool isPointerOver = EventSystem.current.IsPointerOverGameObject();
+			if (_wasVisible && !isPointerOver) {
+				ui.DOFade(0, fadeDuration);
+				_wasVisible = false;
+				return;
+			}
+			if (!_wasVisible && isPointerOver) {
+				ui.DOFade(1, fadeDuration);
+				_wasVisible = true;
+				return;
+			}
+		}
+	}
+}