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Doobers plopping out - how to squeeze and bounce at the same time

Started by afarber, Aug 18 2012 08:00 AM - - - - -

3 replies to this topic
afarber

Post #1 by afarber , 18 August 2012 - 08:00 AM

Hello,

I'm trying to reproduce "doobers" - i.e. coins, stars, etc. provided to players in games after they performed simple tasks, like chopping a tree.

The doobers would usually

1) Bounce and change dimensions at the same time (bigger width, smaller height and then back to normal)
2) Fly in a bezier curve up to the score bar
3) Lighten up in a polaroid effect for a split-second.

I have prepared a complete working example and screenshot for the 2)

but don't know how to do 1) and 3).

Any ideas please?

Regards
Alex

P.S. Below my test case code and screenshot:

Posted Image

Star.fxg:

<?xml version='1.0' encoding='UTF-8'?>
<!-- fxg/star.fxg -->
<fxg:Graphic xmlns:fxg="http://ns.adobe.com/fxg/2008" version="2">  
	<fxg:Path x="9.399" y="10.049" data="M 82.016 78.257 L 51.895 69.533 L 27.617 89.351 L 26.621 58.058 L 0.231 41.132 L 29.749 30.52 L 37.714 0.241 L 56.944 24.978 L 88.261 23.181 L 70.631 49.083 Z">
		<fxg:fill>
			<fxg:SolidColor color="#FFFFFF"/>
		</fxg:fill>
		<fxg:stroke>
			<fxg:SolidColorStroke
				caps="none"
				color="#4769C4"
				joints="miter"
				miterLimit="4"
				weight="20"/>
		</fxg:stroke>
	</fxg:Path>
</fxg:Graphic>

MyApp.mxml:

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
			   xmlns:s="library://ns.adobe.com/flex/spark"
			   xmlns:mx="library://ns.adobe.com/flex/mx"
			   applicationComplete="init()">
	<fx:Script>
		<![CDATA[
			import mx.collections.ArrayList;
			import spark.core.SpriteVisualElement;
			import com.greensock.TweenMax;
			import com.greensock.easing.Cubic;
			private function init():void {
				var g:Graphics = myComp.graphics;
				g.clear();
				g.beginFill(0xCCCCCC);
				g.drawRect(0, 0, myComp.width, myComp.height);
				g.endFill();			  
			}		  
			private function handleClick(event:MouseEvent):void {
				var star:SpriteVisualElement = new Star();
				star.x = event.localX;
				star.y = event.localY;
				myComp.addChild(star);
				TweenMax.to(star, 1, {
					delay: 2,
					ease:  Cubic.easeOut,
					bezier: [
						{x: myComp.width - star.width, y: Math.max(event.localY, myComp.height/2)},
						{x: myComp.width - star.width, y: 0}
					]
				});
			}
		]]>
	</fx:Script>  
	<mx:UIComponent id="myComp" width="100%" height="100%" click="handleClick(event)" />
</s:Application>

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afarber

Post #2 by afarber , 18 August 2012 - 08:37 AM

Hello again,

I've come forward with the following code but still have 3 problems:

1) How to run the flyTween on mouse over event?
2) How to add the "polaroid blitz" tween at the very end?
3) Don't know how to remove the mouse over handler at the end - since it is an anonimous closure

Thank you for any hints

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
	  xmlns:s="library://ns.adobe.com/flex/spark"
	  xmlns:mx="library://ns.adobe.com/flex/mx"
	  applicationComplete="init()">

<fx:Script>
  <![CDATA[
   import com.greensock.TweenMax;
   import com.greensock.easing.Bounce;
   import com.greensock.easing.Cubic;
  
   import mx.collections.ArrayList;
  
   import spark.core.SpriteVisualElement;
   private function init():void {
    var g:Graphics = myComp.graphics;
    g.clear();
    g.beginFill(0xCCCCCC);
    g.drawRect(0, 0, myComp.width, myComp.height);
    g.endFill();   
   }  
  
   private function handleClick(event:MouseEvent):void {
    var star:SpriteVisualElement = new Star();
    star.x = event.localX;
    star.y = event.localY;
    myComp.addChild(star);
   
    TweenMax.to(star, 2, {
	 bezier: [
		 {x:star.x + 10, y:star.y - 20, scaleX: 1,   scaleY: 1},
	  {x:star.x + 20, y:star.y + 20, scaleX: 1.2, scaleY: .8},
	  {x:star.x + 20, y:star.y + 30, scaleX: 1,   scaleY: 1}],
	 orientToBezier: false,
	 ease: Bounce.easeOut
    });
    var flyTween:TweenMax = TweenMax.to(star, 1, {
	 delay: 10,
	 ease:  Cubic.easeOut,
	 bezier: [
	  {x: myComp.width - star.width, y: Math.max(event.localY, myComp.height/2)},
	  {x: myComp.width - star.width, y: 0}
	 ],
	 onComplete: function():void {
	  myComp.removeChild(star);
      // XXX how to remove mouse over listener here?
	 }
    });
   
    star.addEventListener(MouseEvent.MOUSE_OVER, function(event:MouseEvent):void {
	 flyTween.complete();
    });
   }
  ]]>
</fx:Script>   

<mx:UIComponent id="myComp" width="100%" height="100%" click="handleClick(event)" />

</s:Application>

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Carl
  • Carl
  • 5,626 Likes (Superhero)
  • 7,859 posts

Post #3 by Carl , 19 August 2012 - 01:51 AM

Hi,

Glad to see you are making progress.

1) How to run the flyTween on mouse over event?

currently on MOUSE_OVER you are forcing the flyTween to complete. I've also noticed that you have a delay of 10 seconds on the flyTween. If you want the flyTween to play as soon as the MOUSE_OVER happens try using

flyTween.restart()

using restart() you will bypass the existing 10-second delay

2) How to add the "polaroid blitz" tween at the very end?


I don't know exactly what you are asking. I don't see any code about a polaroid blitz. Are you asking how to create a polaroid blitz? or how to add more tweens to a sequence?

If the latter, I would suggest you look into TimelineLite or TimelineMax as they provide very powerful sequencing tools.
http://www.greensock.com/timelinelite
If you need more help, just ask.

3) Don't know how to remove the mouse over handler at the end - since it is an anonimous closure


Yes, that is one of the downsides of using anonymous functions; You can't reference them. I would suggest naming your event handler functions just like you did with handleClick().
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afarber

Post #4 by afarber , 19 August 2012 - 01:41 PM

Thank you I didn't realize that the restart() method will cancel a delay and execute the tween immediately.

I've updated my test code here
http://stackoverflow...enshot-attached

It runs good enough now, thanks
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