var stage;
var canvas;
var director;
var loader;
var device;
var display;
var libs;
var registry;
var manifest = [
    {id:'background', src:'assets/background.png'},
    {id:'ship', src:'assets/ship.png'},
    {id:'creep1', src:'assets/creep1.png'},
    {id:'creep2', src:'assets/creep2.png'},
    {id:'creep3', src:'assets/creep3.png'},
    {id:'creep4', src:'assets/creep4.png'},
    {id:'creep5', src:'assets/creep5.png'},
    {id:'ktulu', src:'assets/ktulu.png'},
    {id:'shadow', src:'assets/shadowtop.png'},
    {id:'button_start', src:'assets/button_start.png'},
    {id:'button_credits', src:'assets/button_credits.png'},
    {id:'button_back', src:'assets/button_back.png'},
    {id:'button_submit', src:'assets/button_submit.png'},
    {id:'button_replay', src:'assets/button_replay.png'},
    {id:'button_mute', src:'assets/button_mute.png'},
    {id:'weapon1', src:'assets/weapon1.png'},
    {id:'weapon2', src:'assets/weapon2.png'},
    {id:'weapon3', src:'assets/weapon3.png'},
    {id:'weapon4', src:'assets/weapon4.png'},
    {id:'weapon5', src:'assets/weapon5.png'},
    {id:'weapon6', src:'assets/weapon6.png'},
    {id:'weapon7', src:'assets/weapon7.png'},
    {id:'weapon_indicator', src:'assets/weapon_indicator.png'},
    {id:'weaponbox1', src:'assets/weaponbox1.png'},
    {id:'weaponbox2', src:'assets/weaponbox2.png'},
    {id:'weaponbox3', src:'assets/weaponbox3.png'},
    {id:'weaponbox4', src:'assets/weaponbox4.png'},
    {id:'weaponbox5', src:'assets/weaponbox5.png'},
    {id:'weaponbox6', src:'assets/weaponbox6.png'},
    {id:'weaponbox7', src:'assets/weaponbox7.png'},

]

function start() {
    verifyDependences();

    canvas = document.getElementById('canvas');
    stage = new createjs.Stage(canvas);
    director = new creatine.Director(stage);
    display = new creatine.Display(canvas);
    device = new creatine.Device(canvas);
    loader = new createjs.LoadQueue(true);
    libs = new Libs(canvas);
    libs.loadLibs();
    
    registry = {};
    registry.gameMusic = null;

    display.setUserSelect(false);
    display.setTouchAction(false);
    display.setSmoothingEnabled(true);

    stage.snapToPixelEnabled = true;

    loader.installPlugin(createjs.Sound);
    createjs.Sound.alternateExtensions = ['ogg', 'mp3'];
    if (device.firefox||device.chrome||device.opera) {
        manifest.push({id:'music_level', src:'assets/music.ogg'});
        manifest.push({id:'music_menu', src:'assets/menu.ogg'});
        manifest.push({id:'sound_ktulu', src:'assets/ktulu.ogg'});
        manifest.push({id:'sound_weapon1', src:'assets/weapon1.ogg'});
        manifest.push({id:'sound_weapon2', src:'assets/weapon2.ogg'});
        manifest.push({id:'sound_weapon3', src:'assets/weapon3.ogg'});
        manifest.push({id:'sound_weapon4', src:'assets/weapon4.ogg'});
        manifest.push({id:'sound_weapon5', src:'assets/weapon5.ogg'});
        manifest.push({id:'sound_explosion1', src:'assets/explosion1.ogg'});
        manifest.push({id:'sound_explosion2', src:'assets/explosion2.ogg'});
        manifest.push({id:'sound_explosion3', src:'assets/explosion3.ogg'});
        manifest.push({id:'sound_dead', src:'assets/dead.ogg'});
        manifest.push({id:'sound_overheat', src:'assets/overheat.ogg', data:1});
    } else {
        manifest.push({id:'music_level', src:'assets/music.mp3'});
        manifest.push({id:'music_menu', src:'assets/menu.mp3'});
        manifest.push({id:'sound_ktulu', src:'assets/ktulu.mp3'});
        manifest.push({id:'sound_weapon1', src:'assets/weapon1.mp3'});
        manifest.push({id:'sound_weapon2', src:'assets/weapon2.mp3'});
        manifest.push({id:'sound_weapon3', src:'assets/weapon3.mp3'});
        manifest.push({id:'sound_weapon4', src:'assets/weapon4.mp3'});
        manifest.push({id:'sound_weapon5', src:'assets/weapon5.mp3'});
        manifest.push({id:'sound_explosion1', src:'assets/explosion1.mp3'});
        manifest.push({id:'sound_explosion2', src:'assets/explosion2.mp3'});
        manifest.push({id:'sound_explosion3', src:'assets/explosion3.mp3'});
        manifest.push({id:'sound_dead', src:'assets/dead.mp3'});
        manifest.push({id:'sound_overheat', src:'assets/overheat.mp3', data:1});
    }

    createjs.Ticker.setFPS(60);
    createjs.Ticker.addEventListener('tick', onUpdate);
    createjs.Ticker.useRAF = true;

    var preloadScene = new PreloadScene();
    director.push(preloadScene);
    loader.on('complete', onLoadComplete);
    loader.loadManifest(manifest);
}

function verifyDependences() {
    try {
        !!localStorage.getItem;
    } catch (error) {
        window.localStorage = {}
    }

    if (typeof(localStorage['btsHighScore']) === 'undefined') {
        localStorage['btsHighScore'] = 0
    }

    if (typeof(localStorage['btsSoundVolume']) === 'undefined') {
        localStorage['btsSoundVolume'] = 1
    }
}

function onLoadComplete(event) {
    createjs.Sound.setVolume(localStorage['btsSoundVolume']);
    director.replace(
        new IntroScene(),
        // new MenuScene(),
        // new LevelScene(),
        // new CreditsScene(),
        new creatine.transitions.FadeInOut(null, 1000)
    );
    // director.replace();
    // director.replace();
}

function onUpdate(event) {
    event.fdelta = event.delta/1000.;

    if (director.scene)
        director.scene.onUpdate(event)

    stage.update();
}