FX

/*
 * CustomCanvas.fx
 *
 * Created on Sep 16, 2008, 3:36:41 PM
 */

package particles;

import javafx.animation.*;
import javafx.scene.*;
import javafx.scene.paint.*;
import javafx.scene.shape.*;
import javafx.scene.input.*;
import java.lang.Math;
import java.util.Random;

/**
 * @author joshua.marinacci@sun.com
 */

public class CustomCanvas extends CustomNode {

    var acc : Number;
    var timeline : Timeline;
    var parts : Particle[];
    var random : Random; 

    function update() : Void {
        insert 
        Particle {
            x : 84
            y : 164
            vx : 0.3 * random.nextGaussian()
            vy : 0.3 * random.nextGaussian() - 1
            timer : 100
            acc : bind acc
        } into parts;
        var i = sizeof parts - 1;
        while( i >= 0 ) {
                parts
            [i.intValue()].update();
            if( parts
            [i.intValue()].isdead()) {
                delete parts[i.intValue()];
            }
            i--;
        }
    }

    override public function create(): Node {
        random = new Random();
        timeline = Timeline {
            repeatCount: java.lang.Double.POSITIVE_INFINITY // HACK
            keyFrames : 
                KeyFrame {
                    time : 16.6ms
                    action: 
                        function() {
                            update();
                        }                
                }
        };
        timeline.play();


        return Group {
            content : bind [
                Rectangle {
                    width : 200, height : 200
                    fill : Color.BLACK
                    blocksMouse : true

                    onMouseMoved : 
                        function( 
                        e : MouseEvent ): Void {
                            acc = ( e.x - 100 ) / 1000;
                        }
                },
                Line {
                    startX : bind 100 + ( 500 * acc )
                    startY : 50
                    endX : 100
                    endY : 50
                    stroke : Color.WHITE
                },
                Line {
                    startX : bind 100 + ( 500 * acc )
                    startY : 50
                    endX : bind 100 + ( 500 * acc ) - 4 * acc / Math.abs( acc )
                    endY : 48
                    stroke : Color.WHITE
                },
                Line {
                    startX : bind 100 + ( 500 * acc )
                    startY : 50
                    endX : bind 100 + ( 500 * acc ) - 4 * acc / Math.abs( acc )
                    endY : 52
                    stroke : Color.WHITE
                },
                parts
            ]
        };
    }
}