カウントダウン演出実装

popcorn/Assets/MyGame/Scenes/MiniGame/Prefabs/Header.prefab

@@ -590,6 +590,8 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   text: {fileID: 1458058295484164564}
   timeText: {fileID: 7932948163013127618}
+  countDownAnimator: {fileID: 8834137657701799390}
+  countDownText: {fileID: 6898933620753137981}
 --- !u!1 &7328251775195385351
 GameObject:
   m_ObjectHideFlags: 0

popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs

@@ -206,6 +206,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
                             .Subscribe(time =>
                             {
                                 SoundManager.Instance.PlaySE("se_minigame_RemainingTimeLeft");
+                                headerView.StartCountDown();
                             }).AddTo(gameCompositeDisposable);
                         break;
                     case GameState.Success:

popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/HeaderView.cs

@@ -1,4 +1,5 @@
 using System;
+using TMPro;
 using UniRx;
 using UnityEngine;
 using UnityEngine.UI;
@@ -9,6 +10,14 @@ namespace MyGame.Scenes.MiniGame.Scripts
     {
         [SerializeField] private Text text;
         [SerializeField] private Text timeText;
+        [SerializeField] private Animator countDownAnimator;
+        [SerializeField] private TextMeshProUGUI countDownText;
+        private int count = 5;
+
+        private void Start()
+        {
+            countDownAnimator.gameObject.SetActive(false);
+        }
 
         public void ChangeItemCount(int value) => text.text = value.ToString();
 
@@ -16,5 +25,24 @@ namespace MyGame.Scenes.MiniGame.Scripts
         {
             timeText.text = $"{newTime:0}";
         }
+
+        public void StartCountDown()
+        {
+            Observable.Timer(TimeSpan.Zero, TimeSpan.FromSeconds(1f))
+                .Select(x => count - x)
+                .Take(count)
+                .Subscribe(x =>
+                {
+                    countDownAnimator.gameObject.SetActive(true);
+                    countDownText.text = x.ToString();
+                    countDownAnimator.Play("CountDown", 0, 0f);
+                }, () =>
+                {
+                    Observable.Timer(TimeSpan.FromSeconds(1f)).Subscribe(_ =>
+                    {
+                        countDownAnimator.gameObject.SetActive(false);
+                    }).AddTo(this);
+                }).AddTo(this);
+        }
     }
 }