Tween.delay, Tween.repeat and Tween.yoyo will no longer throw an error if called before a TweenData object has been created (via Tween.to or Tween.from) (thanks @SomMeri phaserjs#1419)

Author: photonstorm

README.md

@@ -9,7 +9,7 @@
 - [How to Build](#how-to-build)
 - [Koding](#koding)
 - [Bower / NPM](#bower)
-- [CDNJS](#cdnjs)
+- [jsDelivr](#jsdelivr)
 - [Requirements](#requirements)
 - [Build Files](#build-files)
 - [Learn By Example](#example)
@@ -79,6 +79,8 @@ Version 2.2.2 - "Alkindar" - in development
 
 ### Bug Fixes
 
+* Tween.delay, Tween.repeat and Tween.yoyo will no longer throw an error if called before a TweenData object has been created (via Tween.to or Tween.from) (thanks @SomMeri #1419)
+
 For details about changes made in previous versions of Phaser see the full Change Log at https://github.com/photonstorm/phaser/blob/master/CHANGELOG.md
 
 ![div](http://phaser.io/images/div3.png)
@@ -124,16 +126,18 @@ Nice and easy :)
 
 ![div](http://phaser.io/images/div6.png)
 
-<a name="cdnjs"></a>
-## CDNJS
+<a name="jsdelivr"></a>
+## jsDelivr
+
+Phaser is now available on [jsDelivr](http://jsdelivr.com) - a "super-fast CDN for developers and webmasters." You can include the following in your html:
 
-Phaser is now available on [CDNJS](http://cdnjs.com). You can include the following in your html:
+`//cdn.jsdelivr.net/phaser/2.2.2/phaser.min.js`
 
-`http://cdnjs.cloudflare.com/ajax/libs/phaser/2.2.2/phaser.min.js`
+or the non-minified version:
 
-Or if you prefer you can leave the protocol off, so it works via http and https:
+`//cdn.jsdelivr.net/phaser/2.2.2/phaser.js`
 
-`//cdnjs.cloudflare.com/ajax/libs/phaser/2.2.2/phaser.min.js`
+More details on the [jsDelivr Phaser page](http://www.jsdelivr.com/#!phaser).
 
 ![div](http://phaser.io/images/div1.png)
 

src/tween/Tween.js

@@ -359,6 +359,7 @@ Phaser.Tween.prototype = {
     /**
     * Sets the delay in milliseconds before this tween will start. If there are child tweens it sets the delay before the first child starts.
     * The delay is invoked as soon as you call `Tween.start`. If the tween is already running this method doesn't do anything for the current active tween.
+    * If you have not yet called `Tween.to` or `Tween.from` at least once then this method will do nothing, as there are no tweens to delay.
     * If you have child tweens and pass -1 as the index value it sets the delay across all of them.
     *
     * @method Phaser.Tween#delay
@@ -368,6 +369,8 @@ Phaser.Tween.prototype = {
     */
     delay: function (duration, index) {
 
+        if (this.timeline.length === 0) { return this; }
+
         if (typeof index === 'undefined') { index = 0; }
 
         if (index === -1)
@@ -388,6 +391,7 @@ Phaser.Tween.prototype = {
 
     /**
     * Sets the number of times this tween will repeat.
+    * If you have not yet called `Tween.to` or `Tween.from` at least once then this method will do nothing, as there are no tweens to repeat.
     * If you have child tweens and pass -1 as the index value it sets the number of times they'll repeat across all of them.
     * If you wish to define how many times this Tween and all children will repeat see Tween.repeatAll.
     *
@@ -398,6 +402,8 @@ Phaser.Tween.prototype = {
     */
     repeat: function (total, index) {
 
+        if (this.timeline.length === 0) { return this; }
+
         if (typeof index === 'undefined') { index = 0; }
 
         if (index === -1)
@@ -419,6 +425,7 @@ Phaser.Tween.prototype = {
     /**
     * A Tween that has yoyo set to true will run through from its starting values to its end values and then play back in reverse from end to start.
     * Used in combination with repeat you can create endless loops.
+    * If you have not yet called `Tween.to` or `Tween.from` at least once then this method will do nothing, as there are no tweens to yoyo.
     * If you have child tweens and pass -1 as the index value it sets the yoyo property across all of them.
     * If you wish to yoyo this Tween and all of its children then see Tween.yoyoAll.
     *
@@ -429,6 +436,8 @@ Phaser.Tween.prototype = {
     */
     yoyo: function(enable, index) {
 
+        if (this.timeline.length === 0) { return this; }
+
         if (typeof index === 'undefined') { index = 0; }
 
         if (index === -1)