flash on 2012-7-27

by mutantleg 27 Jul 2012

Embed

/**
 * Copyright mutantleg ( http://wonderfl.net/user/mutantleg )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/UPlw
 */

package {
    import flash.events.Event;
    import flash.display.Graphics;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        
        public var a:Sprite;
        public var b:Sprite;
        
        public function FlashTest() {
            // write as3 code here..
            
            var g:Graphics;
            a = new Sprite();
            g = a.graphics;
            g.lineStyle(1,0);
            g.drawCircle(0,0,32);
            addChild(a);
            
            b = new Sprite();
            g = b.graphics;
            g.lineStyle(2, 0xFF0000);
            g.drawCircle(0,0,32);
            addChild(b);
            
            a.x = 130;
            a.y = 30;
            
            b.x = 220;
            b.y = 80;
            
            stage.addEventListener(Event.ENTER_FRAME, onEnter);
        }//ctor
        
        public var vx1:Number = 0;
        public var vy1:Number = 0;
        public var vx2:Number = 0;
        public var vy2:Number = 0;
        
        public function onEnter(e:Event):void
        {
            var dx:Number;
            var dy:Number;
            var mag:Number;
            var nx:Number;
            var ny:Number;
            
            
            dx = a.x - b.x;
            dy = a.y - b.y;
            mag = Math.sqrt(dx*dx+dy*dy);
            var rest:Number = 100;
            
            nx = dx / mag;
            ny = dy / mag;
            
            vx1 += -nx * 0.1 * (mag-rest);
            vy1 += -ny * 0.1 * (mag-rest);
            
             vx2 += nx * 0.1 * (mag-rest);
            vy2 += ny * 0.1 * (mag-rest);
            
            vx1 *= 0.9;
            vy1 *= 0.9;
            
            vx2 *= 0.9;
            vy2 *= 0.9;
            
            vy1 += 0.5;
            vy2 += 0.5;
            
            a.x += vx1;
            a.y += vy1;
            
            //b.x = mouseX;
            //b.y = mouseY;
            
            b.x += vx2;
            b.y += vy2;
            
            if (a.y > 300) { a.y = 300; if (vy1 > 0) { vy1 = 0; } }
            if (b.y > 300) { b.y = 300; if (vy2 > 0) {vy2 =0;}}
            
            graphics.clear();
            graphics.lineStyle(1,0);
            graphics.moveTo(a.x, a.y);
            graphics.lineTo(b.x,b.y);
            
            
        }//onenter
        
    }//classend
}