AS3 example Positioning

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Revision as of 18:31, 2 November 2007 by Widged (talk | contribs) (New page: == Program == Copy this text and paste it into a new text file. Save the text file as "Transformations.as". package { import flash.display.Sprite; import flash.text.TextField;...)
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Program

Copy this text and paste it into a new text file. Save the text file as "Transformations.as".

package {
    import flash.display.Sprite;
    import flash.text.TextField;
    import flash.events.MouseEvent;

    public class Transformations extends Sprite {

        private var drapeau:Sprite;
        private var redRect:Sprite;
        private var whiteVert:Sprite;
        private var whiteHoriz:Sprite;

        public function Transformations() {
          redRect = filledRectangle(150,100,0xFF0000)  // width, height, red color
          whiteVert = filledRectangle(20,65,0xFFFFFF)  // width, height, white color
          whiteHoriz = filledRectangle(65,20,0xFFFFFF)  // width, height, white color
           
          drapeau = new Sprite();
          drapeau.addChild(redRect)
          drapeau.addChild(whiteVert)
          drapeau.addChild(whiteHoriz)
           
          drapeau.x = 100
          drapeau.y = 80
          addChild(drapeau)
           
          var button1:Sprite;
          button1 = simpleButton("cart from above");
          button1.addEventListener(MouseEvent.MOUSE_DOWN, showCart);
          addChild(button1)

          var button2:Sprite;
          button2 = simpleButton("swiss flag");
          button2.addEventListener(MouseEvent.MOUSE_DOWN, showFlag);
          button2.x = 150;
          addChild(button2)

        }

        private function showCart(event:MouseEvent):void {
          whiteVert.x = 0
          whiteHoriz.x = 25
          redRect.x = 125
        }

        private function showFlag(event:MouseEvent):void {
          whiteVert.x = 0
          whiteHoriz.x = 0
          redRect.x = 0
        }

        private function filledRectangle(w:uint, h:uint, color:uint):Sprite {
          var r:Sprite = new Sprite()
          r.graphics.beginFill(color);  
          r.graphics.drawRect(-w/2, -h/2, w, h);
          r.graphics.endFill();
          return r;
        }

      private function simpleButton(label:String):Sprite {
        var sprite:Sprite = new Sprite();
        var textLabel:TextField = new TextField()
        sprite.graphics.clear();
        sprite.graphics.beginFill(0xD4D4D4); // grey color
        sprite.graphics.drawRoundRect(0, 0, 105, 25, 10, 10); // x, y, width, height, ellipseW, ellipseH
        sprite.graphics.endFill();
        textLabel.text = label;
        textLabel.x = 10;
        textLabel.y = 5;
        textLabel.selectable = false;
        sprite.addChild(textLabel)
        return sprite; 
       }         
    }
}

Walkthrough

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Variants

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Challenge

Not sure they are still in vogue. When I was a kid, there were some popular jokes around circles on a sheet. Circles are not supposed to be any funny, I agree. What was funny about that was that a drawing that looked like nothing but circles toke a completely different meaning when given an interpretation. A big circle with a medium circle in its middle, a medium circle at a bit of a distance with a small circle a bit off center: a mexican cooking an egg. There were also the two mexicans on a tandem (twice a big circle with a medium circle in the center).... and many more that I have forgotten.

Try to come up with graphs that involve simple shapes like circles and rectangles and that correspond to object "viewed from the sky".