Removed allocations happening when a tween was killed (because C# was…

… erroneously converting a line of code into an Activator.CreateInstance)

UnityTests.Unity5/Assets/_Tests/AllocationsTests.cs

@@ -0,0 +1,67 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Profiling;
+using UnityEditor;
+using DG.Tweening;
+
+public class AllocationsTests : BrainBase
+{
+	public enum AllocationTestType
+	{
+		DOMove,
+		DOPath
+	}
+
+	public AllocationTestType testType;
+	public Transform[] targets;
+	public Vector3[] wps;
+
+	Tween tween0;
+
+	IEnumerator Start()
+	{
+		DOTween.Init();
+		yield return new WaitForSeconds(1);
+
+		switch (testType) {
+		case AllocationTestType.DOMove:
+			Profiler.BeginSample("Create tween");
+			// Regular move tweens test
+			Debug.Log("Create tween");
+			tween0 = targets[0].DOMoveX(2, 1);
+			Profiler.EndSample();
+			yield return null;
+			Profiler.BeginSample("Kill tween");
+			Debug.Log("Kill tween");
+			tween0.Kill();
+			Profiler.EndSample();
+
+			yield return null;
+
+			Profiler.BeginSample("Create tween 2");
+			// Regular move tweens test
+			Debug.Log("Create tween 2");
+			tween0 = targets[0].DOMoveX(2, 1);
+			Profiler.EndSample();
+			yield return null;
+			Profiler.BeginSample("Kill tween 2");
+			Debug.Log("Kill tween 2");
+			tween0.Kill();
+			Profiler.EndSample();
+			break;
+		case AllocationTestType.DOPath:
+			// Regular move tweens test
+			Debug.Log("Create tween");
+			tween0 = targets[0].DOPath(wps, 1);
+			yield return null;
+			Debug.Log("Kill tween");
+			tween0.Kill();
+			break;
+		}
+
+		yield return null;
+		yield return null;
+		EditorApplication.isPaused = true;
+	}
+}

UnityTests.Unity5/ProjectSettings/ProjectVersion.txt

@@ -1,2 +1 @@
-m_EditorVersion: 5.4.1f1
-m_StandardAssetsVersion: 0
+m_EditorVersion: 5.5.0f3

_DOTween.Assembly/DOTween/Core/TweenerCore.cs

@@ -130,7 +130,8 @@ internal sealed override void Reset()
             base.Reset();
 
             if (tweenPlugin != null) tweenPlugin.Reset(this);
-            plugOptions = new TPlugOptions();
+//            plugOptions = new TPlugOptions(); // Generates GC because converts to an Activator.CreateInstance
+            plugOptions = Utils.InstanceCreator<TPlugOptions>.Create(); // Fixes GC allocation using workaround
             getter = null;
             setter = null;
             hasManuallySetStartValue = false;

_DOTween.Assembly/DOTween/Core/Utils.cs

@@ -4,6 +4,8 @@
 // License Copyright (c) Daniele Giardini.
 // This work is subject to the terms at http://dotween.demigiant.com/license.php
 
+using System;
+using System.Linq.Expressions;
 using UnityEngine;
 
 namespace DG.Tweening.Core
@@ -32,5 +34,17 @@ internal static float Angle2D(Vector3 from, Vector3 to)
             ang *= -1f;
             return ang;
         }
+
+        // █████████████████████████████████████████████████████████████████████████████████████████████████████████████████████
+        // ███ INTERNAL CLASSES ████████████████████████████████████████████████████████████████████████████████████████████████
+        // █████████████████████████████████████████████████████████████████████████████████████████████████████████████████████
+
+        // Uses code from BK > http://stackoverflow.com/a/1280832
+        public class InstanceCreator<T> where T : new()
+        {
+            static readonly Expression<Func<T>> _TExpression = () => new T();
+            static readonly Func<T> _TBuilder = _TExpression.Compile();
+            public static T Create() { return _TBuilder(); }
+        }
     }
 }

_DOTween.Assembly/DOTween/DOTween.cs

@@ -32,7 +32,7 @@ namespace DG.Tweening
     public class DOTween
     {
         /// <summary>DOTween's version</summary>
-        public static readonly string Version = "1.1.340";
+        public static readonly string Version = "1.1.500";
 
         ///////////////////////////////////////////////
         // Options ////////////////////////////////////

_DOTween.Assembly/DOTween43/DOTween43.csproj

@@ -52,7 +52,7 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="UnityEngine">
-      <HintPath>C:\Program Files (x86)\Unity 45\Editor\Data\Managed\UnityEngine.dll</HintPath>
+      <HintPath>C:\Program Files (x86)\Unity 46\Editor\Data\Managed\UnityEngine.dll</HintPath>
       <Private>False</Private>
     </Reference>
   </ItemGroup>