From 76ad60fad3bd8825bd20f77838f25def43fa31ea Mon Sep 17 00:00:00 2001
From: Syntriax <Syntriax@gmail.com>
Date: Fri, 30 May 2025 20:55:09 +0300
Subject: [PATCH] perf: tween pooling

---
 Engine.Systems/Tween/Tween.cs        |  9 +++++++++
 Engine.Systems/Tween/TweenManager.cs | 22 +++++++++++++++++++++-
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/Engine.Systems/Tween/Tween.cs b/Engine.Systems/Tween/Tween.cs
index 91f912c..ab86045 100644
--- a/Engine.Systems/Tween/Tween.cs
+++ b/Engine.Systems/Tween/Tween.cs
@@ -69,6 +69,15 @@ internal class Tween : ITween
 
     internal void Reset()
     {
+        OnStarted.Clear();
+        OnPaused.Clear();
+        OnResumed.Clear();
+        OnCancelled.Clear();
+        OnCompleted.Clear();
+        OnEnded.Clear();
+        OnUpdated.Clear();
+        OnDeltaUpdated.Clear();
+
         _counter = 0f;
         Progress = 0f;
         State = TweenState.Idle;
diff --git a/Engine.Systems/Tween/TweenManager.cs b/Engine.Systems/Tween/TweenManager.cs
index 856efdd..3a4b208 100644
--- a/Engine.Systems/Tween/TweenManager.cs
+++ b/Engine.Systems/Tween/TweenManager.cs
@@ -8,17 +8,36 @@ namespace Syntriax.Engine.Systems.Tween;
 public class TweenManager : UniverseObject, ITweenManager
 {
     private CoroutineManager coroutineManager = null!;
+    private readonly Queue<Tween> queue = new();
 
     private readonly Dictionary<ITween, IEnumerator> runningCoroutines = [];
 
     public ITween StartTween(float duration, ITweenManager.TweenSetCallback? setCallback = null)
     {
-        Tween tween = new(duration);
+        Tween tween = Get(duration);
         tween.OnUpdated.AddListener(tween => setCallback?.Invoke(tween.Value));
         runningCoroutines.Add(tween, coroutineManager.StartCoroutine(RunTween(tween)));
         return tween;
     }
 
+    private Tween Get(float duration)
+    {
+        if (!queue.TryDequeue(out Tween? result))
+            result = new(duration);
+
+        result.Duration = duration;
+        return result;
+    }
+
+    private void Return(Tween tween)
+    {
+        if (queue.Contains(tween))
+            return;
+
+        tween.Reset();
+        queue.Enqueue(tween);
+    }
+
     private IEnumerator RunTween(Tween tween)
     {
         tween.State = TweenState.Playing;
@@ -40,6 +59,7 @@ public class TweenManager : UniverseObject, ITweenManager
         }
 
         runningCoroutines.Remove(tween);
+        Return(tween);
     }
 
     public void CancelTween(ITween tween)