Boot.js

var Game = {}

Game.Boot = function (game) {

}

Game.Boot.prototype = {

    init: function (task) {
      this.task = task

        //  Unless you specifically know your game needs to support multi-touch I would recommend setting this to 1
        this.input.maxPointers = 1

        //  Phaser will automatically pause if the browser tab the game is in loses focus. You can disable that here:
        this.stage.disableVisibilityChange = true

        if (this.game.device.desktop) {
            //  If you have any desktop specific settings, they can go in here
            this.scale.pageAlignHorizontally = true
        } else {
            //  Same goes for mobile settings.
            //  In this case we're saying "scale the game, no lower than 480x260 and no higher than 1024x768"
             this.scale.scaleMode = Phaser.ScaleManager.EXACT_FIT
            // this.scale.setMinMax(480, 260, 1024, 768);
             this.scale.forcePortrait = true
            // this.scale.pageAlignHorizontally = true;
        }

    },

    preload: function () {

        //  Here we load the assets required for our preloader (in this case a background and a loading bar)
        this.load.image('preloaderBar', '/images/preloader_bar.png')

    },

    create: function () {

        //  By this point the preloader assets have loaded to the cache, we've set the game settings
        //  So now let's start the real preloader going
        this.state.start('Preloader', true,false, this.task)

    }

}