feat: add state machine

Assets/_Project/Develop/Runtime/Utilities/TimeManagement/TimerService.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections;
+using _Project.Develop.Runtime.Utils.ReactiveManagement;
+using _Project.Develop.Runtime.Utils.ReactiveManagement.Event;
+using Assets._Project.Develop.Runtime.Utilities.CoroutinesManagement;
+using UnityEngine;
+
+namespace Assets._Project.Develop.Runtime.Utilities.Timer
+{
+    public class TimerService : IDisposable
+    {
+        private float _cooldown;
+
+        private ReactiveEvent _cooldownEnded;
+
+        private ReactiveVariable<float> _currentTime;
+
+        private ICoroutinesPerformer _coroutinePerformer;
+        private Coroutine _cooldownProcess;
+
+        public TimerService(
+            float cooldown,
+            ICoroutinesPerformer coroutinePerformer)
+        {
+            _cooldown = cooldown;
+            _coroutinePerformer = coroutinePerformer;
+
+            _cooldownEnded = new ReactiveEvent();
+            _currentTime = new ReactiveVariable<float>();
+        }
+
+        public IReadOnlyEvent CooldownEnded => _cooldownEnded;
+        public IReadOnlyVariable<float> CurrentTime => _currentTime;
+        public bool IsOver => _currentTime.Value <= 0;
+
+        public void Dispose()
+        {
+            Stop();
+        }
+
+        public void Stop()
+        {
+            if (_cooldownProcess != null)
+                _coroutinePerformer.StopPerform(_cooldownProcess);
+        }
+
+        public void Restart()
+        {
+            Stop();
+
+            _cooldownProcess = _coroutinePerformer.StartPerform(CooldownProcess());
+        }
+
+        private IEnumerator CooldownProcess()
+        {
+            _currentTime.Value = _cooldown;
+
+            while (IsOver == false)
+            {
+                _currentTime.Value -= Time.deltaTime;
+                yield return null;
+            }
+
+            _cooldownEnded.Invoke();
+        }
+    }
+}