One of the questions about ActionScript 3 that I am most often asked is how to send arguments to a listener function along with an event. To provide some background for this question, you could send argument data to a standard function like this? function showMsg(msg:String):void { trace(msg); } showMsg(“Claire”); However, in an event listener, [...]
Motion Myth For some reason lots of people seem to think that ActionScript animation creates smoother animation than the Flash timeline. This is simply not true. The timeline is just as capable of creating “smooth” animations as ActionScript is. On the timeline, if you want a smoother animation, use a framerate around 30fps and put [...]
var rand:Number = Math.random() * Math.random() * Math.random(); This is a trick I use when I need more contrast in my random numbers. In this case, the variable rand will get closer to the number 1 significantly less frequently than if you just used Math.random() once. To illustrate this I created this snippet: [SWF(width=800, height=600)] [...]
that’s beautiful.. so much better than typeof.. Though I might also add (if I may), if you want some extremely (almost stupid amount of) detailed info about your class type, you can also use describeType().. so var sprite:Sprite = new Sprite(); var spriteDescription:XML = describeType(sprite); trace (spriteDescription); traces: <type name=”flash.display::Sprite” base=”flash.display::DisplayObjectContainer” isDynamic=”false” isFinal=”false” isStatic=”false”> <extendsClass [...]
In ActionScript 3, you can define XML variables using inline XML in your script. You don’t even need to enclose it in Strings like you did in previous versions of ActionScript. The ActionScript 3 compiler will automatically parse the XML in the code and recognize when it stops and when normal AS code starts. var [...]
Event objects used with EventDispatcher in ActionScript 3 are a little less generic than those used with ActionScript 2. In AS 3, each event object has its own class. The most common event classes are Event (flash.events.Event) for general events and MouseEvent (flash.events.MouseEvent) for events associated with the mouse. Other event classes can be found [...]
ActionScript 3 uses the EventDispatcher (flash.events.EventDispatcher) class for all event handling. This class was available in ActionScript 2, but it existed as an external class in the mx framework. Now, it is built into the player (and in being so, improves performance). Whenever you want to create an event handler to be called during a [...]
In previous versions of ActionScript, there were a couple of classes who had the capability of loading external text, namely LoadVars and XML. The loading responsibilities of these classes has moved to one single class in ActionScript 3, URLLoader (flash.net.URLLoader). This class is a lot like LoadVars. The big difference is that it is used [...]
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