forked from: Falling Trail

click n' hold,
press a key

by Josflos 21 Sep 2010

Tags

ink
Embed

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

// forked from Josflos's Falling Trail
package {
    import flash.events.KeyboardEvent;
    import flash.events.TimerEvent;
    import flash.utils.Timer;
    import flash.events.MouseEvent;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        private var cursorX:Number;
        private var cursorY:Number;
        private var balls:Array;
        private var mouseHeld:Boolean;
        
        public function FlashTest() {
            cursorX = stage.stageWidth / 2;
            cursorY = stage.stageHeight / 2;
            
            balls = new Array();
            
            var spawnTicker:Timer = new Timer(10);
            spawnTicker.addEventListener(TimerEvent.TIMER, spawn);
            spawnTicker.start();
            
            stage.addEventListener(MouseEvent.MOUSE_DOWN, down);
            stage.addEventListener(MouseEvent.MOUSE_UP, up);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, fall);
        }
        
        private function down(e:MouseEvent):void
        {
            cursorX = mouseX;
            cursorY = mouseY;
            mouseHeld = true;
        }
        
        private function up(e:MouseEvent):void
        {
            mouseHeld = false;
        }

        
        private function spawn(e:TimerEvent):void {
            cursorX += (mouseX - cursorX) / 20;
            cursorY += (mouseY - cursorY) / 20;
            
            cursorX += Math.random() * 2 - 1;
            cursorY += Math.random() * 2 - 1;
            
            if (mouseHeld)
            {
                var ball:Particle = new Particle;
                addChild(ball);
                balls.push(ball);
                ball.x = cursorX;
                ball.y = cursorY;
            }
        }
        
        private function fall(e:KeyboardEvent):void
        {
            for (var i:uint; i < balls.length; i++)
            {
                balls[i].fall();
            }

        }
    }
}
import flash.utils.Timer;

import flash.display.Sprite;
import flash.utils.Timer;
import flash.events.TimerEvent;
import flash.events.Event;

class Particle extends Sprite {
    private var momentumY:Number = 0;
    private var mass:Number = 1;
    
    public function Particle() {
        mass = Math.random() * 2 + 0.5
        
        graphics.beginFill(0x000000);
        graphics.drawCircle(0, 0, mass);
        graphics.endFill();
    }
    
    public function fall():void {
        addEventListener(Event.ENTER_FRAME, loop);
    }

    
    private function loop(e:Event):void {
        momentumY += 0.6;
        y += momentumY / mass;
        
        if (y > stage.stageHeight) {
            removeEventListener(Event.ENTER_FRAME, loop);
            parent.removeChild(this);
        }
    }
}