worldAlpha is now calculated in the read, not in preUpdate all the time.

Author: photonstorm

v3/src/checksum.js

@@ -1,4 +1,4 @@
 var CHECKSUM = {
-build: '33625460-c152-11e6-ae92-d150eb7215ee'
+build: 'e9c69930-c6d1-11e6-838b-4b50f0ec04a3'
 };
 module.exports = CHECKSUM;

v3/src/components/Color.js

@@ -146,10 +146,10 @@ Object.defineProperties(Color.prototype, {
             {
                 if (!this._dirty)
                 {
+                    this._dirty = true;
+
                     this.state.sys.updates.add(this);
                 }
-
-                this._dirty = true;
             }
             else
             {
@@ -293,6 +293,11 @@ Object.defineProperties(Color.prototype, {
 
         get: function ()
         {
+            if (this.gameObject.parent)
+            {
+                this._worldAlpha = this._alpha * this.gameObject.parent.color.worldAlpha;
+            }
+
             return this._worldAlpha;
         },
 

v3/src/gameobjects/container/Container.js

@@ -25,11 +25,6 @@ Container.prototype.constructor = Container;
 
 Container.prototype.preUpdate = function ()
 {
-    if (this.parent)
-    {
-        this.color.worldAlpha = this.parent.color.worldAlpha;
-    }
-
     this.children.preUpdate();
 };
 

v3/src/gameobjects/image/Image.js

@@ -36,21 +36,6 @@ var Image = function (state, x, y, key, frame)
 Image.prototype = Object.create(GameObject.prototype);
 Image.prototype.constructor = Image;
 
-/**
-* Automatically called by World.preUpdate.
-*
-* @method Phaser.Image#preUpdate
-* @memberof Phaser.Image
-*/
-Image.prototype.preUpdate = function ()
-{
-    //  Would like to get rid of this somehow ...
-    if (this.parent)
-    {
-        this.color.worldAlpha = this.parent.color.worldAlpha;
-    }
-};
-
 Object.defineProperties(Image.prototype, {
 
     width: {