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

function preload() {

    game.load.tilemap('background', 'assets/maps/smb_bg.png', 'assets/maps/smb_bg.json', null, Phaser.Tilemap.JSON);
    game.load.tilemap('level1', 'assets/maps/smb_tiles.png', 'assets/maps/smb_level1.json', null, Phaser.Tilemap.JSON);
    game.load.spritesheet('balls', 'assets/sprites/balls.png', 17, 17);

}

var balls;
var map;

function create() {

    game.stage.backgroundColor = '#787878';

    game.add.tilemap(0, 0, 'background');

    map = game.add.tilemap(0, 0, 'level1');
    map.setCollisionByIndex([9,10,11,14,15,16,18,19,22,23,24,32,37,38], true, true, true, true);

    balls = game.add.emitter(300, 50, 500);
    balls.bounce = 0.5;
    balls.makeParticles('balls', [0,1,2,3,4,5], 500, 1);
    balls.minParticleSpeed.setTo(-150, 150);
    balls.maxParticleSpeed.setTo(100, 100);
    balls.gravity = 8;
    balls.start(false, 5000, 50);

    game.add.tween(balls).to({ x: 4000 }, 7500, Phaser.Easing.Sinusoidal.InOut, true, 0, 1000, true);

}

function update() {

    game.physics.collide(balls, map);

    if (game.input.keyboard.isDown(Phaser.Keyboard.LEFT))
    {
        game.camera.x -= 8;
    }
    else if (game.input.keyboard.isDown(Phaser.Keyboard.RIGHT))
    {
        game.camera.x += 8;
    }

    if (game.input.keyboard.isDown(Phaser.Keyboard.UP))
    {
        game.camera.y -= 8;
    }
    else if (game.input.keyboard.isDown(Phaser.Keyboard.DOWN))
    {
        game.camera.y += 8;
    }

}