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

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

var sprite;

function create() {
	// 设置背景
    game.stage.backgroundColor = '#0072bc';

    sprite = game.add.sprite(400, 300, 'arrow');
    sprite.anchor.setTo(0.5, 0.5);
}

function update() {
	// 旋转
    sprite.angle += 1;
}

function render() {
    game.debug.spriteInfo(sprite, 32, 32);
}