MovieClip.prototype.fadeIn in AS3?

[giloosh]

Please help me adjust this code to work in Actionscript 3.0

PHP Code:

MovieClip.prototype.fadeIn = function(){
    mcImg.onEnterFrame = function(){
        this._alpha +=6;
        if(this._alpha > 99){
            this._alpha = 100;
            delete this.onEnterFrame;
        }
    };
}; 


[Slowburn]

package
{
     public class FaderClip extends MovieClip
    {
        
        public function FaderClip():void
        {
            super();
        }
        
        public function fadeIn():void
        {
            // make sure we are hidden first
            this.alpha = 0;
            // start fadeing In
            addEventListener( Event.ENTER_FRAME, onFadeIn, false, 0, true );
        }
        
        public function onFadeOut():void
        {
            this.alpha = 1;
            addEventListener( Event.ENTER_FRAME, onFadeOut, false, 0, true );
        }
        
        public function onFadeIn( objEvent:Event ):void
        {
            // increment the opacity by 5%
            this.alpha += .05;
            // if we are at full opacity
            if( this.alpha >= 1 )
            {
                // remove the listener ( so we don't call this method anymore )
                removeEventListener( Event.ENTER_FRAME, onFadeIn, false );
                // tell others that we are done
                dispatchEvent( new Event( Event.CHANGE ) );
            }
        }
        
        public function onFadeOut( objEvent:Event ):void
        {
            this.alpha -= .05;
            if( this.alpha <= 0 )
            {
                removeEventListener( Event.ENTER_FRAME, onFadeOut, false );
                dispatchEvent( new Event( Event.CHANGE ) );
            }
        }
    }
}

// create your new faderclip
var clip = new FaderClip();
addChild( clip );
// give it some design
clip.graphics.beginFill( 0x660000, 1 );
clip.graphics.drawRect( 0, 0, 100, 100 );
clip.graphics.endFill();
// make it hidden
clip.alpha = 0;
// listen for changes
clip.addEventListener( Event.CHANGE, onChanged );

// begin fading in
clip.fadeIn();

function onChanged( objEvent:Event ):void
{
    // if the clip is at full opacity, fade out
    if( objEvent.target.alpha >= 1 ) clip.fadeOut();
    // else fade back in
    else clip.fadeIn();
}

[astrix]

A large difference in the amount of code to implement...

And, for programmers, not is very bad need write much more code???

I not like very much AS3 and class...

Good speed in as3, and much more options, but very bad the language... Not is easy and intuitive... And without easy and intuitive language, the time for develop are much more, and is important the time of development...

[maskedMan]

Originally Posted by astrix

A large difference in the amount of code to implement...

And, for programmers, not is very bad need write much more code???

I not like very much AS3 and class...

Good speed in as3, and much more options, but very bad the language... Not is easy and intuitive... And without easy and intuitive language, the time for develop are much more, and is important the time of development...

Slowburn's code is drastically longer than yours because he wrote a full-featured class instead of the stripped down basics, commented his code, and put his braces on start of the following line instead of at the end of the current line. You could do it like this too...

package{
     public class FaderClip extends MovieClip    {        
       public function fadeOut():void{
            this.alpha = 1;
            addEventListener( Event.ENTER_FRAME, onFadeOut, false, 0, true);
        }
     public function onFadeOut( objEvent:Event ):void{
            this.alpha -= .05;
            if( this.alpha <= 0 ){
                removeEventListener( Event.ENTER_FRAME, onFadeOut, false );
                dispatchEvent( new Event( Event.CHANGE ) );
            }
     }

      }
}

I count 10 statements here as opposed to your 6. Mostly this is also down to style.

AS3 is far more consistent and logical, with far better error reporting making it easier to debug. It's not 'intuitive' to you because you are not familiar with it. When you have experience with both however, you can clearly see how much more solid and consistent AS3 is.




EDIT: Argh! I've been sucked in by a dead thread.