Fixed decreasing uint tweens not working correctly

UnityTests.Unity5/Assets/_Tests/RichText.cs

@@ -16,7 +16,7 @@ IEnumerator Start()
 
 		TweenParams tp = new TweenParams().SetEase(Ease.Linear);
 		tp.SetSpeedBased(speedBased);
-		txtRichA.DOText("This is a <color=#ff0000>colored <color=#00ff00>text</color></color> and normal text", duration, true, scrambleMode).SetAs(tp);
+		txtRichA.DOText("This is a <color=#ff0000>colored <color=#00ff00>text</color></color> and normal text. And this is a minor sign: <", duration, true, scrambleMode).SetAs(tp);
 		txtA.DOText("This is a colored text and normal text", duration, true, scrambleMode).SetAs(tp);
 	}
 }

UnityTests.Unity5/Assets/_Tests/TempTests.cs

@@ -10,12 +10,10 @@
 
 public class TempTests : BrainBase
 {
-	public RectTransform target;
+	public uint test = 1000;
+	public uint to = 0;
 
-    IEnumerator Start ()
-    {
-    	yield return new WaitForSeconds(0.5f);
-
-    	target.DOPivot(Vector2.zero, 2);
+    void Start () {
+        DOTween.To(()=> test, x=> test = x, to, 2.0f).OnUpdate(()=> Debug.Log("1000 to 0 > " + test));
     }
 }

_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 = "1.1.290";
+        public static readonly string Version = "1.1.300";
 
         ///////////////////////////////////////////////
         // Options ////////////////////////////////////
@@ -304,7 +304,7 @@ public static Tweener To(DOGetter<int> getter, DOSetter<int> setter, int endValu
         /// <para>Example usage with lambda:</para><code>x=> myProperty = x</code></param>
         /// <param name="endValue">The end value to reach</param><param name="duration">The tween's duration</param>
         public static Tweener To(DOGetter<uint> getter, DOSetter<uint> setter, uint endValue, float duration)
-        { return ApplyTo<uint, uint, NoOptions>(getter, setter, endValue, duration); }
+        { return ApplyTo<uint, uint, UintOptions>(getter, setter, endValue, duration); }
         /// <summary>Tweens a property or field to the given value using default plugins</summary>
         /// <param name="getter">A getter for the field or property to tween.
         /// <para>Example usage with lambda:</para><code>()=> myProperty</code></param>

_DOTween.Assembly/DOTween/DOTween.csproj

@@ -98,6 +98,7 @@
     <Compile Include="Plugins\LongPlugin.cs" />
     <Compile Include="Plugins\Options\PathOptions.cs" />
     <Compile Include="Plugins\Options\QuaternionOptions.cs" />
+    <Compile Include="Plugins\Options\UintOptions.cs" />
     <Compile Include="Plugins\Options\Vector3ArrayOptions.cs" />
     <Compile Include="Plugins\QuaternionWrapperPlugin.cs" />
     <Compile Include="Plugins\UlongPlugin.cs" />

_DOTween.Assembly/DOTween/Plugins/Options/UintOptions.cs

@@ -0,0 +1,13 @@
+// Author: Daniele Giardini - http://www.demigiant.com
+// Created: 2016/05/30 13:00
+// License Copyright (c) Daniele Giardini
+// This work is subject to the terms at http://dotween.demigiant.com/license.php
+
+#pragma warning disable 1591
+namespace DG.Tweening.Plugins.Options
+{
+    public struct UintOptions
+    {
+        public bool isNegativeChangeValue; // Necessary because uints can't obviously be negative
+    }
+}

_DOTween.Assembly/DOTween/Plugins/StringPlugin.cs

@@ -130,7 +130,7 @@ StringBuilder Append(string value, int startIndex, int length, bool richTextEnab
             int fullLen = value.Length;
             int i;
             for (i = 0; i < length; ++i) {
-                Char c = value[i];
+                char c = value[i];
                 if (c == '<') {
                     bool hadOpenTag = hasOpenTag;
                     char nextChar = value[i + 1];
@@ -141,7 +141,7 @@ StringBuilder Append(string value, int startIndex, int length, bool richTextEnab
                     Match m = Regex.Match(s, tagMatch);
                     if (m.Success) {
                         if (!hasOpenTag && !hadOpenTag) {
-                            // We have a closing tag without an opening tag, try to find previous correct opening tag an apply it
+                            // We have a closing tag without an opening tag, try to find previous correct opening tag and apply it
                             char closingTagFirstChar = value[i + 1];
                             char[] openingTagLookouts;
                             if (closingTagFirstChar == 'c') openingTagLookouts = new[] { '#', 'c' };

_DOTween.Assembly/DOTween/Plugins/UintPlugin.cs

@@ -10,53 +10,65 @@
 using DG.Tweening.Core.Enums;
 using DG.Tweening.Plugins.Core;
 using DG.Tweening.Plugins.Options;
+using UnityEngine;
 
 #pragma warning disable 1591
 namespace DG.Tweening.Plugins
 {
-    public class UintPlugin : ABSTweenPlugin<uint, uint, NoOptions>
+    public class UintPlugin : ABSTweenPlugin<uint, uint, UintOptions>
     {
-        public override void Reset(TweenerCore<uint, uint, NoOptions> t) { }
+        public override void Reset(TweenerCore<uint, uint, UintOptions> t) { }
 
-        public override void SetFrom(TweenerCore<uint, uint, NoOptions> t, bool isRelative)
+        public override void SetFrom(TweenerCore<uint, uint, UintOptions> t, bool isRelative)
         {
             uint prevEndVal = t.endValue;
             t.endValue = t.getter();
             t.startValue = isRelative ? t.endValue + prevEndVal : prevEndVal;
             t.setter(t.startValue);
         }
 
-        public override uint ConvertToStartValue(TweenerCore<uint, uint, NoOptions> t, uint value)
+        public override uint ConvertToStartValue(TweenerCore<uint, uint, UintOptions> t, uint value)
         {
             return value;
         }
 
-        public override void SetRelativeEndValue(TweenerCore<uint, uint, NoOptions> t)
+        public override void SetRelativeEndValue(TweenerCore<uint, uint, UintOptions> t)
         {
             t.endValue += t.startValue;
         }
 
-        public override void SetChangeValue(TweenerCore<uint, uint, NoOptions> t)
+        public override void SetChangeValue(TweenerCore<uint, uint, UintOptions> t)
         {
-            t.changeValue = t.endValue - t.startValue;
+            t.plugOptions.isNegativeChangeValue = t.endValue < t.startValue;
+            t.changeValue = t.plugOptions.isNegativeChangeValue ? t.startValue - t.endValue : t.endValue - t.startValue;
+//            t.changeValue = t.endValue - t.startValue;
         }
 
-        public override float GetSpeedBasedDuration(NoOptions options, float unitsXSecond, uint changeValue)
+        public override float GetSpeedBasedDuration(UintOptions options, float unitsXSecond, uint changeValue)
         {
             float res = changeValue / unitsXSecond;
             if (res < 0) res = -res;
             return res;
         }
 
-        public override void EvaluateAndApply(NoOptions options, Tween t, bool isRelative, DOGetter<uint> getter, DOSetter<uint> setter, float elapsed, uint startValue, uint changeValue, float duration, bool usingInversePosition, UpdateNotice updateNotice)
+        public override void EvaluateAndApply(UintOptions options, Tween t, bool isRelative, DOGetter<uint> getter, DOSetter<uint> setter, float elapsed, uint startValue, uint changeValue, float duration, bool usingInversePosition, UpdateNotice updateNotice)
         {
-            if (t.loopType == LoopType.Incremental) startValue += (uint)(changeValue * (t.isComplete ? t.completedLoops - 1 : t.completedLoops));
+            uint v;
+            if (t.loopType == LoopType.Incremental) {
+                v =  (uint)(changeValue * (t.isComplete ? t.completedLoops - 1 : t.completedLoops));
+                if (options.isNegativeChangeValue) startValue -= v;
+                else startValue += v;
+            }
             if (t.isSequenced && t.sequenceParent.loopType == LoopType.Incremental) {
-                startValue += (uint)(changeValue * (t.loopType == LoopType.Incremental ? t.loops : 1)
+                v = (uint)(changeValue * (t.loopType == LoopType.Incremental ? t.loops : 1)
                     * (t.sequenceParent.isComplete ? t.sequenceParent.completedLoops - 1 : t.sequenceParent.completedLoops));
+                if (options.isNegativeChangeValue) startValue -= v;
+                else startValue += v;
             }
 
-            setter((uint)Math.Round(startValue + changeValue * EaseManager.Evaluate(t.easeType, t.customEase, elapsed, duration, t.easeOvershootOrAmplitude, t.easePeriod)));
+            v = (uint)Math.Round(changeValue * EaseManager.Evaluate(t.easeType, t.customEase, elapsed, duration, t.easeOvershootOrAmplitude, t.easePeriod));
+            if (options.isNegativeChangeValue) setter(startValue - v);
+            else setter(startValue + v);
         }
     }
 }