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Packages/Core/Interfaces/IPlayer.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Threading;
+using System.Timers;
+using Timer = System.Timers.Timer;
+namespace BITKit
+{
+    public enum PlayerState
+    {
+        None,
+        Playing,
+        Paused,
+    }
+    public enum PlayerType
+    {
+        None,
+        Player,
+        Recorder,
+    }
+    public interface IPlayer<TSource>
+    {
+        void Start();
+        void Pause();
+        void Stop();
+        int GetIndex();
+        float GetTime();
+        void SetIndex(int index);
+        void SetTime(float time);
+        PlayerState GetPlayState();
+    }
+    public class Player<T>
+    {
+        public int frameRate = 30;
+        public PlayerState state;
+        protected List<T> list = new();
+        public bool isPlaying;
+        public event Action onStart;
+        public event Action onStop;
+        protected T current;
+        Timer timer = new() { AutoReset = true };
+        public void Start()
+        {
+            if (isPlaying is false)
+            {
+                list ??= new();
+                timer ??= new();
+                isPlaying = true;
+                timer.Interval = TimeSpan.FromSeconds(1f / (float)frameRate).Milliseconds;
+                timer.Elapsed += Update;
+                timer.Start();
+                state = PlayerState.Playing;
+                OnStart();
+                onStart?.Invoke();
+            }
+        }
+        public void Stop()
+        {
+            if (isPlaying)
+            {
+                timer.Stop();
+                timer.Elapsed -= Update;
+                isPlaying = false;
+                state = 0;
+                OnStop();
+                onStop?.Invoke();
+            }
+        }
+        public void Cancel()
+        {
+            timer?.Stop();
+            list?.Clear();
+            onStop?.Invoke();
+            timer = null;
+            isPlaying = false;
+            state = 0;
+        }
+        public void PlayOrPause()
+        {
+            switch (state)
+            {
+                case PlayerState.None:
+                    Start();
+                    break;
+                case PlayerState.Playing:
+                    state = PlayerState.Paused;
+                    break;
+                case PlayerState.Paused:
+                    state = PlayerState.Playing;
+                    break;
+            }
+        }
+        public void Set(T t)
+        {
+            current = t;
+        }
+        void Update(object sender, ElapsedEventArgs e)
+        {
+            OnUpdate();
+        }
+        protected virtual void OnUpdate() { }
+        protected virtual void OnStart() { }
+        protected virtual void OnStop() { }
+    }
+}