var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });

function preload() {
    game.load.image('disk', 'assets/sprites/ra_dont_crack_under_pressure.png');
}

var s;

function create() {

    game.stage.backgroundColor = '#182d3b';

    s = game.add.sprite(game.world.centerX, game.world.centerY, 'disk');
    s.anchor.setTo(0.5, 0.5);

}

function update() {

    s.rotation += 0.01;

    if (game.input.keyboard.isDown(Phaser.Keyboard.LEFT))
    {
        s.x -= 4;
    }
    else if (game.input.keyboard.isDown(Phaser.Keyboard.RIGHT))
    {
        s.x += 4;
    }

    if (game.input.keyboard.isDown(Phaser.Keyboard.UP))
    {
        s.y -= 4;
    }
    else if (game.input.keyboard.isDown(Phaser.Keyboard.DOWN))
    {
        s.y += 4;
    }

}

function render() {

    game.debug.renderSpriteCorners(s, true, true);
    game.debug.renderSpriteInfo(s, 20, 32);

}