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var config = {
    width: 800,
    height: 600,
    type: Phaser.AUTO,
    parent: 'phaser-example',
    scene: {
        create: create,
        update: update
    }
};

var game = new Phaser.Game(config);

var graphics;
var ellipses;

function create ()
{
    graphics = this.add.graphics({ lineStyle: { color: 0x00aaaa } });

    var ellipse = new Phaser.Geom.Ellipse(400, 300, 0, 0);

    ellipses = [ellipse];

    for(var i = 0; i < 80; i++)
    {
        ellipse = Phaser.Geom.Ellipse.Clone(ellipse);
        ellipse.width += 1.5;
        ellipse.height += 0.7;

        Phaser.Geom.Ellipse.CircumferencePoint(ellipse, i / 20 * Phaser.Math.PI2, ellipse);

        ellipses.push(ellipse);
    }
}

function update ()
{
    graphics.clear();

    for(var i = 0; i < ellipses.length; i++)
    {
        ellipses[i].width += 1.5;
        ellipses[i].height += 0.7;

        if(ellipses[i].width > 800)
        {
            ellipses[i].width = 0;
            ellipses[i].height = 0;
        }

        graphics.strokeEllipseShape(ellipses[i]);
    }
}