//Revision: 3636
        //Author: zproxy
        //Date: 22. aprill 2012. a. 11:16:53
        //Message:

        //----
        //Added : /examples/java/OutRun4KTemplate
        //Added : /examples/java/OutRun4KTemplate/OutRun4KTemplate



        // http://www.digitalinsane.com/archives/2007/01/21/space_invaders/
        public SpaceInvaders()
        {
            ImageResources gfx = "http://server/";

            var overlay = new Overlay();

            overlay.BackgroundColor             = Color.Black;
            overlay.MaximumOpacity              = 1;
            overlay.ControlInBack.style.zIndex  = 100000;
            overlay.ControlInFront.style.zIndex = 100001;


            var view = overlay.ControlInFront;

            view.style.textAlign = IStyle.TextAlignEnum.center;
            view.style.SetSize(480, 480);
            view.style.backgroundColor = Color.Green;
            view.style.color           = Color.White;
            view.style.fontFamily      = IStyle.FontFamilyEnum.Fixedsys;



            //Native.Document.body.appendChild(
            //    new IHTMLElement(IHTMLElement.HTMLElementEnum.center,
            //    view)
            //    );



            //Native.Document.body.style.backgroundColor = Color.Black;
            // Native.Document.body.style.overflow = IStyle.OverflowEnum.hidden;

            System.Func <IHTMLDiv> CreateCanvas =
                delegate
            {
                var c = new IHTMLDiv();

                c.style.overflow = IStyle.OverflowEnum.hidden;
                c.style.SetLocation(1, 1, 478, 478);

                return(c);
            };

            view.style.position = IStyle.PositionEnum.relative;

            var canvas = CreateCanvas();
            var menu   = CreateCanvas();

            canvas.style.backgroundColor = Color.Black;


            view.appendChild(canvas, menu);

            var msg_loading = new IHTMLDiv("loading...");

            msg_loading.style.color = Color.Green;

            menu.appendChild(msg_loading);

            // at this point we want our images

            overlay.Visible = true;

            ScriptCoreLib.JavaScript.Runtime.Timer.DoAsync(overlay.UpdateLocation);

            // now wait while all images are loaded/complete

            ((fbool)(() => !gfx.IsComplete)).Trigger(
                delegate
            {
                // loading images is done now.



                // build the scoreboard
                var MyEnemyDirectory = new EnemyDirectory(gfx);

                var board = new ScoreBoard(gfx);

                board.Control.style.SetLocation(8, 8, 464, 64);

                canvas.appendChild(board.Control);

                board.Lives = 2;
                board.Score = 450;

                // now we can see lives and score.
                // ie does not issue keypress for control keys.
                // scriptcorelib should filter firefox events...

                // lets show main menu

                var mmenu        = new MainMenu(MyEnemyDirectory, gfx);
                var gameovermenu = new GameOverMenu();

                menu.appendChild(mmenu.Control, gameovermenu.Control);

                gameovermenu.Visible = false;
                gameovermenu.Control.style.SetLocation(0, 100, 468, 468 - 100);

                mmenu.Control.style.SetLocation(0, 64, 468, 468 - 64);
                mmenu.Visible = true;

                var Enemy_Ammo = new AmmoInfo
                {
                    Color = Color.White,
                    Speed = 8
                };

                var Player      = (IHTMLImage)gfx.biggun.Clone();
                var Player_Ammo = new AmmoInfo
                {
                    Color = Color.Green,
                    Speed = -8
                };

                var Map_Top    = 64;
                var Map_Left   = 20;
                var Map_Right  = 450;
                var Map_Bottom = 470;

                var Map_Rect = new Rectangle();

                Map_Rect.Top    = Map_Top;
                Map_Rect.Left   = Map_Left;
                Map_Rect.Right  = Map_Right;
                Map_Rect.Bottom = Map_Bottom;

                var Player_Y = 460;
                var Player_X = 200;

                var Player_X_step = 8;

                Action <int> UpdatePlayer =
                    delegate(int v)
                {
                    Player_X += v;

                    if (Player_X < Map_Left)
                    {
                        Player_X = Map_Left;
                    }

                    if (Player_X > Map_Right)
                    {
                        Player_X = Map_Right;
                    }


                    Player.SetCenteredLocation(Player_X, Player_Y);
                    Player.style.position = IStyle.PositionEnum.absolute;
                };

                Player.Hide();

                canvas.appendChild(Player, Player_Ammo.Control, Enemy_Ammo.Control);

                AmmoInfo[] KnownAmmo = new[] { Player_Ammo, Enemy_Ammo };

                var KnownConcrete = new List <Concrete>();
                var ConcreteTop   = 432;

                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 0, ConcreteTop)));
                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 1, ConcreteTop)));
                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 2, ConcreteTop)));
                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 3, ConcreteTop)));

                foreach (Concrete v in KnownConcrete.ToArray())
                {
                    canvas.appendChild(v.Control);
                }


                var UFO           = new EnemyUnit(MyEnemyDirectory.UFO);
                var UFO_Direction = 1;

                UFO.Visible = false;

                canvas.appendChild(UFO.Control);


                var EnemyTop     = 128;
                var EnemySpacing = 32;
                var EnemyCount   = 9;

                var KnownEnemies = new List <EnemyUnit>();

                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.A, 20, EnemyTop + 0 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.B, 20, EnemyTop + 1 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.B, 20, EnemyTop + 2 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.C, 20, EnemyTop + 3 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.C, 20, EnemyTop + 4 * EnemySpacing, EnemyCount, EnemySpacing));

                foreach (EnemyUnit v in KnownEnemies.ToArray())
                {
                    canvas.appendChild(v.Control);
                }

                var HitDamage = 40;

                var GameTimer = new ScriptCoreLib.JavaScript.Runtime.Timer();

                int GangDirection = 1;

                Action <string> EndGame =
                    delegate
                {
                    gameovermenu.Visible = true;

                    GameTimer.Stop();
                };

                #region DoAmmoDamage
                Func <AmmoInfo, bool> DoAmmoDamage =
                    delegate(AmmoInfo a)
                {
                    bool hit = false;

                    #region did we hit ufo?
                    if (UFO.Visible)
                    {
                        if (UFO.Bounds.Contains(a.Location))
                        {
                            board.Score += UFO.Info.Points;

                            UFO.Visible = false;

                            hit = true;
                        }
                    }
                    #endregion

                    #region did we hit player
                    if (Player.Bounds.Contains(a.Location))
                    {
                        board.Lives--;

                        hit = true;

                        if (board.Lives < 1)
                        {
                            EndGame("Ship destroied");
                        }
                    }
                    #endregion


                    foreach (Concrete v in KnownConcrete.ToArray())
                    {
                        if (v.Visible)
                        {
                            if (v.Bounds.Contains(a.Location))
                            {
                                v.Health -= HitDamage;

                                if (v.Health > 0)
                                {
                                    hit = true;
                                }
                                else
                                {
                                    v.Visible = false;
                                }
                            }
                        }
                    }

                    foreach (EnemyUnit v in KnownEnemies.ToArray())
                    {
                        if (v.Visible)
                        {
                            if (v.Bounds.Contains(a.Location))
                            {
                                v.Visible = false;

                                hit = true;
                                new SpaceInvadersTemplate.HTML.Audio.FromAssets.invaderexplode().play();

                                board.Score += v.Info.Points;
                            }
                        }
                    }



                    return(hit);
                };
                #endregion


                var MyRandom = new System.Random();

                var mothershiploop = new SpaceInvadersTemplate.HTML.Audio.FromAssets.mothershiploopx
                {
                    loop = true
                };


                var duh = new IHTMLAudio[] {
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh0(),
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh1(),
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh2(),
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh3(),
                };

                var duh_cycle = duh.ToCyclicAction(a => a.play());


                #region EnemyAction
                Action EnemyAction =
                    delegate
                {
                    #region create ufo

                    if (!UFO.Visible)
                    {
                        if (MyRandom.NextDouble() < 0.1)
                        {
                            Console.WriteLine("UFO!");
                            mothershiploop.play();

                            if (MyRandom.NextDouble() > 0.5)
                            {
                                UFO_Direction = 1;
                                UFO.MoveTo(0, EnemyTop - UFO.Control.height * 2);
                            }
                            else
                            {
                                UFO_Direction = -1;
                                UFO.MoveTo(478, EnemyTop - UFO.Control.height * 2);
                            }

                            UFO.Visible = true;
                        }
                    }
                    #endregion

                    var ev = Enumerable.Where(KnownEnemies.ToArray(), i => i.Visible);

                    if (!Enemy_Ammo.Visible)
                    {
                        var ei = (int)System.Math.Round(MyRandom.NextDouble() * Enumerable.Count(ev));

                        EnemyUnit et = Enumerable.ElementAt(ev, ei);

                        if (et == null)
                        {
                            System.Console.WriteLine("element at " + ei + " not found");
                        }
                        else
                        {
                            int ey = Enumerable.Max(
                                from i in ev where i.X == et.X select i.Y
                                //    Enumerable.Select(Enumerable.Where(ev, i => i.X == et.X), i => i.Y)
                                );

                            Enemy_Ammo.MoveTo(et.X, ey + 20);
                            Enemy_Ammo.Visible = true;
                        }
                    }


                    #region MoveAll
                    Action <Point> MoveAll =
                        delegate(Point to)
                    {
                        var ConcreteReached = false;

                        foreach (EnemyUnit v in ev)
                        {
                            var vy = v.Y + to.Y;

                            if (vy > ConcreteTop)
                            {
                                ConcreteReached = true;
                            }

                            v.MoveTo(v.X + to.X, vy);
                        }

                        if (ConcreteReached)
                        {
                            EndGame("The walls have been breached.");
                        }
                    };
                    #endregion

                    Action MoveAllDown =
                        delegate
                    {
                        MoveAll(new Point(0, 8));
                    };

                    duh_cycle();

                    #region move the gang
                    if (GangDirection > 0)
                    {
                        int ex_max = Enumerable.Max(Enumerable.Select(ev, i => i.X));

                        // gang goes right

                        if (ex_max >= Map_Rect.Right)
                        {
                            GangDirection = -1;
                            MoveAllDown();
                        }
                        else
                        {
                            MoveAll(new Point(4, 0));
                        }
                    }
                    else
                    {
                        int ex_min = Enumerable.Min(Enumerable.Select(ev, i => i.X));

                        // gang goes left

                        if (ex_min <= Map_Rect.Left)
                        {
                            GangDirection = 1;
                            MoveAllDown();
                        }
                        else
                        {
                            MoveAll(new Point(-4, 0));
                        }
                    }
                    #endregion
                };
                #endregion

                bool GamePaused = false;



                GameTimer.Tick +=
                    delegate
                {
                    #region only blink while paused
                    if (GamePaused)
                    {
                        if (GameTimer.Counter % 15 == 0)
                        {
                            Player.ToggleVisible();
                        }

                        return;
                    }
                    #endregion



                    Player.Show();

                    #region move ufo

                    if (UFO.Visible)
                    {
                        if (UFO_Direction > 0)
                        {
                            UFO.MoveTo(UFO.X + 4, UFO.Y);

                            if (UFO.X > 478 + UFO.Control.width)
                            {
                                UFO.Visible = false;
                                mothershiploop.pause();
                            }
                        }
                        else
                        {
                            UFO.MoveTo(UFO.X - 4, UFO.Y);

                            if (UFO.X < -UFO.Control.width)
                            {
                                UFO.Visible = false;
                                mothershiploop.pause();
                            }
                        }
                    }
                    #endregion


                    #region do ammo stuff
                    foreach (AmmoInfo v in KnownAmmo)
                    {
                        if (v.Visible)
                        {
                            var y = v.Y + v.Speed;

                            if (Map_Rect.Contains(new Point(v.X, y)))
                            {
                                // did we hit?
                                if (DoAmmoDamage(v))
                                {
                                    v.Visible = false;
                                }
                                else
                                {
                                    v.MoveTo(v.X, y);
                                }
                            }
                            else
                            {
                                v.Visible = false;
                            }
                        }
                    }
                    #endregion



                    var AliveEnemies = Enumerable.Where(KnownEnemies.ToArray(), i => i.Visible);
                    var AliveCount   = Enumerable.Count(AliveEnemies);

                    if (AliveCount == 0)
                    {
                        EndGame("Aliens destoried");

                        return;
                    }

                    if (GameTimer.Counter % (AliveCount / 2) == 0)
                    {
                        EnemyAction();
                    }
                };


                #region ResetGame
                Action ResetGame =
                    delegate
                {
                    mmenu.Visible = false;

                    Player_X    = 220;
                    board.Score = 0;
                    board.Lives = 3;

                    Player.Show();

                    foreach (Concrete v in KnownConcrete.ToArray())
                    {
                        v.Health  = 255;
                        v.Visible = true;
                    }


                    foreach (EnemyUnit v in KnownEnemies.ToArray())
                    {
                        v.ResetPosition();
                        v.Visible = true;
                    }

                    EnemyAction();

                    GameTimer.StartInterval(50);

                    UpdatePlayer(0);
                };
                #endregion

                Action EgoShoot =
                    delegate
                {
                    if (!Player_Ammo.Visible)
                    {
                        Player_Ammo.MoveTo(Player_X, Player_Y - 20);

                        new SpaceInvadersTemplate.HTML.Audio.FromAssets.firemissile().play();

                        Player_Ammo.Visible = true;
                    }
                };

                overlay.ControlInBack.onclick +=
                    delegate
                {
                    if (mmenu.Visible)
                    {
                        ResetGame();
                    }
                    else
                    {
                        EgoShoot();
                    }
                };


                double gamma = 0;

                //Native.window.ondeviceorientation +=
                //    eventData =>
                //    {
                //        if (eventData.gamma < -50)
                //            gamma = eventData.beta;
                //        else
                //            gamma = eventData.gamma;


                //    };

                new ScriptCoreLib.JavaScript.Runtime.Timer(
                    t =>
                {
                    // gamma is the left-to-right tilt in degrees, where right is positive
                    if (gamma < -15)
                    {
                        if (mmenu.Visible)
                        {
                            ResetGame();
                        }
                        else
                        {
                            UpdatePlayer(-Player_X_step);
                        }
                    }

                    if (gamma > 15)
                    {
                        if (mmenu.Visible)
                        {
                            ResetGame();
                        }
                        else
                        {
                            UpdatePlayer(Player_X_step);
                        }
                    }
                }
                    ).StartInterval(100);

                Native.Document.onkeydown += delegate(IEvent ev)
                {
                    Console.WriteLine(new { ev.KeyCode }.ToString());

                    if (mmenu.Visible)
                    {
                        if (ev.IsReturn)
                        {
                            ResetGame();
                        }

                        return;
                    }
                    else
                    {
                        if (ev.IsEscape)
                        {
                            GameTimer.Stop();

                            Player.Hide();

                            mmenu.Visible = true;

                            foreach (AmmoInfo v in KnownAmmo)
                            {
                                v.Visible = false;
                            }

                            foreach (Concrete v in KnownConcrete.ToArray())
                            {
                                v.Visible = false;
                            }

                            foreach (EnemyUnit v in KnownEnemies.ToArray())
                            {
                                v.Visible = false;
                            }

                            UFO.Visible = false;

                            gameovermenu.Visible = false;

                            // the animated gifs would stop after escape key
                            ev.preventDefault();

                            GamePaused = false;
                        }
                    }

                    int key_p = 80;


                    if (ev.KeyCode == key_p)
                    {
                        GamePaused = !GamePaused;
                    }

                    // player shouldn't really move while game is paused
                    // its cheating:)
                    if (GamePaused)
                    {
                        return;
                    }

                    int key_right = 39;
                    int key_left  = 37;

                    if (ev.KeyCode == key_left)
                    {
                        UpdatePlayer(-Player_X_step);
                    }
                    else if (ev.KeyCode == key_right)
                    {
                        UpdatePlayer(Player_X_step);
                    }
                    else if (ev.IsSpaceOrEnterKey())
                    {
                        // the animated gifs would stop after escape key
                        ev.preventDefault();

                        EgoShoot();
                    }
                    else
                    {
                        Console.WriteLine(new { UnknownKeyCode = ev.KeyCode }.ToString());
                    }
                };

                msg_loading.Orphanize();
            }
                , 50);
        }
        //Revision: 3636
        //Author: zproxy
        //Date: 22. aprill 2012. a. 11:16:53
        //Message:

        //----
        //Added : /examples/java/OutRun4KTemplate
        //Added : /examples/java/OutRun4KTemplate/OutRun4KTemplate




        // http://www.digitalinsane.com/archives/2007/01/21/space_invaders/
        public SpaceInvaders()
        {

            ImageResources gfx = "http://server/";

            var overlay = new Overlay();

            overlay.BackgroundColor = Color.Black;
            overlay.MaximumOpacity = 1;
            overlay.ControlInBack.style.zIndex = 100000;
            overlay.ControlInFront.style.zIndex = 100001;


            var view = overlay.ControlInFront;

            view.style.textAlign = IStyle.TextAlignEnum.center;
            view.style.SetSize(480, 480);
            view.style.backgroundColor = Color.Green;
            view.style.color = Color.White;
            view.style.fontFamily = IStyle.FontFamilyEnum.Fixedsys;




            //Native.Document.body.appendChild(
            //    new IHTMLElement(IHTMLElement.HTMLElementEnum.center,
            //    view)
            //    );



            //Native.Document.body.style.backgroundColor = Color.Black;
            // Native.Document.body.style.overflow = IStyle.OverflowEnum.hidden;

            System.Func<IHTMLDiv> CreateCanvas =
                delegate
                {
                    var c = new IHTMLDiv();

                    c.style.overflow = IStyle.OverflowEnum.hidden;
                    c.style.SetLocation(1, 1, 478, 478);

                    return c;
                };

            view.style.position = IStyle.PositionEnum.relative;

            var canvas = CreateCanvas();
            var menu = CreateCanvas();

            canvas.style.backgroundColor = Color.Black;


            view.appendChild(canvas, menu);

            var msg_loading = new IHTMLDiv("loading...");

            msg_loading.style.color = Color.Green;

            menu.appendChild(msg_loading);

            // at this point we want our images

            overlay.Visible = true;

            ScriptCoreLib.JavaScript.Runtime.Timer.DoAsync(overlay.UpdateLocation);

            // now wait while all images are loaded/complete

            ((fbool)(() => !gfx.IsComplete)).Trigger(
            delegate
            {
                // loading images is done now.



                // build the scoreboard
                var MyEnemyDirectory = new EnemyDirectory(gfx);

                var board = new ScoreBoard(gfx);

                board.Control.style.SetLocation(8, 8, 464, 64);

                canvas.appendChild(board.Control);

                board.Lives = 2;
                board.Score = 450;

                // now we can see lives and score.
                // ie does not issue keypress for control keys.
                // scriptcorelib should filter firefox events...

                // lets show main menu

                var mmenu = new MainMenu(MyEnemyDirectory, gfx);
                var gameovermenu = new GameOverMenu();

                menu.appendChild(mmenu.Control, gameovermenu.Control);

                gameovermenu.Visible = false;
                gameovermenu.Control.style.SetLocation(0, 100, 468, 468 - 100);

                mmenu.Control.style.SetLocation(0, 64, 468, 468 - 64);
                mmenu.Visible = true;

                var Enemy_Ammo = new AmmoInfo
                                 {
                                     Color = Color.White,
                                     Speed = 8
                                 };

                var Player = (IHTMLImage)gfx.biggun.Clone();
                var Player_Ammo = new AmmoInfo
                                  {
                                      Color = Color.Green,
                                      Speed = -8
                                  };

                var Map_Top = 64;
                var Map_Left = 20;
                var Map_Right = 450;
                var Map_Bottom = 470;

                var Map_Rect = new Rectangle();

                Map_Rect.Top = Map_Top;
                Map_Rect.Left = Map_Left;
                Map_Rect.Right = Map_Right;
                Map_Rect.Bottom = Map_Bottom;

                var Player_Y = 460;
                var Player_X = 200;

                var Player_X_step = 8;

                Action<int> UpdatePlayer =
                    delegate(int v)
                    {
                        Player_X += v;

                        if (Player_X < Map_Left)
                            Player_X = Map_Left;

                        if (Player_X > Map_Right)
                            Player_X = Map_Right;


                        Player.SetCenteredLocation(Player_X, Player_Y);
                        Player.style.position = IStyle.PositionEnum.absolute;
                    };

                Player.Hide();

                canvas.appendChild(Player, Player_Ammo.Control, Enemy_Ammo.Control);

                AmmoInfo[] KnownAmmo = new[] { Player_Ammo, Enemy_Ammo };

                var KnownConcrete = new List<Concrete>();
                var ConcreteTop = 432;

                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 0, ConcreteTop)));
                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 1, ConcreteTop)));
                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 2, ConcreteTop)));
                KnownConcrete.AddRange(Concrete.BuildAt(new Point(62 + 120 * 3, ConcreteTop)));

                foreach (Concrete v in KnownConcrete.ToArray())
                {
                    canvas.appendChild(v.Control);
                }


                var UFO = new EnemyUnit(MyEnemyDirectory.UFO);
                var UFO_Direction = 1;

                UFO.Visible = false;

                canvas.appendChild(UFO.Control);


                var EnemyTop = 128;
                var EnemySpacing = 32;
                var EnemyCount = 9;

                var KnownEnemies = new List<EnemyUnit>();

                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.A, 20, EnemyTop + 0 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.B, 20, EnemyTop + 1 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.B, 20, EnemyTop + 2 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.C, 20, EnemyTop + 3 * EnemySpacing, EnemyCount, EnemySpacing));
                KnownEnemies.AddRange(EnemyUnit.Build(MyEnemyDirectory.C, 20, EnemyTop + 4 * EnemySpacing, EnemyCount, EnemySpacing));

                foreach (EnemyUnit v in KnownEnemies.ToArray())
                {
                    canvas.appendChild(v.Control);
                }

                var HitDamage = 40;

                var GameTimer = new ScriptCoreLib.JavaScript.Runtime.Timer();

                int GangDirection = 1;

                Action<string> EndGame =
                    delegate
                    {
                        gameovermenu.Visible = true;

                        GameTimer.Stop();
                    };

                #region DoAmmoDamage
                Func<AmmoInfo, bool> DoAmmoDamage =
                    delegate(AmmoInfo a)
                    {
                        bool hit = false;

                        #region did we hit ufo?
                        if (UFO.Visible)
                        {
                            if (UFO.Bounds.Contains(a.Location))
                            {
                                board.Score += UFO.Info.Points;

                                UFO.Visible = false;

                                hit = true;
                            }
                        }
                        #endregion

                        #region did we hit player
                        if (Player.Bounds.Contains(a.Location))
                        {
                            board.Lives--;

                            hit = true;

                            if (board.Lives < 1)
                            {
                                EndGame("Ship destroied");

                            }
                        }
                        #endregion


                        foreach (Concrete v in KnownConcrete.ToArray())
                        {
                            if (v.Visible)
                            {
                                if (v.Bounds.Contains(a.Location))
                                {
                                    v.Health -= HitDamage;

                                    if (v.Health > 0)
                                    {
                                        hit = true;
                                    }
                                    else
                                    {
                                        v.Visible = false;
                                    }
                                }
                            }
                        }

                        foreach (EnemyUnit v in KnownEnemies.ToArray())
                        {
                            if (v.Visible)
                            {
                                if (v.Bounds.Contains(a.Location))
                                {
                                    v.Visible = false;

                                    hit = true;
                                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.invaderexplode().play();

                                    board.Score += v.Info.Points;
                                }
                            }
                        }



                        return hit;
                    };
                #endregion


                var MyRandom = new System.Random();

                var mothershiploop = new SpaceInvadersTemplate.HTML.Audio.FromAssets.mothershiploopx
                {

                    loop = true
                };


                var duh = new IHTMLAudio[] { 
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh0(),
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh1(),
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh2(),
                    new SpaceInvadersTemplate.HTML.Audio.FromAssets.duh3(),
                };

                var duh_cycle = duh.ToCyclicAction(a => a.play());


                #region EnemyAction
                Action EnemyAction =
                    delegate
                    {
                        #region create ufo

                        if (!UFO.Visible)
                        {
                            if (MyRandom.NextDouble() < 0.1)
                            {
                                Console.WriteLine("UFO!");
                                mothershiploop.play();

                                if (MyRandom.NextDouble() > 0.5)
                                {
                                    UFO_Direction = 1;
                                    UFO.MoveTo(0, EnemyTop - UFO.Control.height * 2);
                                }
                                else
                                {
                                    UFO_Direction = -1;
                                    UFO.MoveTo(478, EnemyTop - UFO.Control.height * 2);
                                }

                                UFO.Visible = true;
                            }
                        }
                        #endregion

                        var ev = Enumerable.Where(KnownEnemies.ToArray(), i => i.Visible);

                        if (!Enemy_Ammo.Visible)
                        {
                            var ei = (int)System.Math.Round(MyRandom.NextDouble() * Enumerable.Count(ev));

                            EnemyUnit et = Enumerable.ElementAt(ev, ei);

                            if (et == null)
                                System.Console.WriteLine("element at " + ei + " not found");
                            else
                            {
                                int ey = Enumerable.Max(
                                    from i in ev where i.X == et.X select i.Y
                                    //    Enumerable.Select(Enumerable.Where(ev, i => i.X == et.X), i => i.Y)
                                );

                                Enemy_Ammo.MoveTo(et.X, ey + 20);
                                Enemy_Ammo.Visible = true;
                            }
                        }


                        #region MoveAll
                        Action<Point> MoveAll =
                            delegate(Point to)
                            {
                                var ConcreteReached = false;

                                foreach (EnemyUnit v in ev)
                                {
                                    var vy = v.Y + to.Y;

                                    if (vy > ConcreteTop)
                                    {
                                        ConcreteReached = true;
                                    }

                                    v.MoveTo(v.X + to.X, vy);
                                }

                                if (ConcreteReached)
                                {
                                    EndGame("The walls have been breached.");
                                }
                            };
                        #endregion

                        Action MoveAllDown =
                            delegate
                            {
                                MoveAll(new Point(0, 8));
                            };

                        duh_cycle();

                        #region move the gang
                        if (GangDirection > 0)
                        {
                            int ex_max = Enumerable.Max(Enumerable.Select(ev, i => i.X));

                            // gang goes right

                            if (ex_max >= Map_Rect.Right)
                            {
                                GangDirection = -1;
                                MoveAllDown();
                            }
                            else
                            {
                                MoveAll(new Point(4, 0));
                            }
                        }
                        else
                        {
                            int ex_min = Enumerable.Min(Enumerable.Select(ev, i => i.X));

                            // gang goes left

                            if (ex_min <= Map_Rect.Left)
                            {
                                GangDirection = 1;
                                MoveAllDown();
                            }
                            else
                            {
                                MoveAll(new Point(-4, 0));
                            }
                        }
                        #endregion

                    };
                #endregion

                bool GamePaused = false;




                GameTimer.Tick +=
                    delegate
                    {

                        #region only blink while paused
                        if (GamePaused)
                        {
                            if (GameTimer.Counter % 15 == 0)
                            {
                                Player.ToggleVisible();
                            }

                            return;
                        }
                        #endregion



                        Player.Show();

                        #region move ufo

                        if (UFO.Visible)
                        {
                            if (UFO_Direction > 0)
                            {
                                UFO.MoveTo(UFO.X + 4, UFO.Y);

                                if (UFO.X > 478 + UFO.Control.width)
                                {
                                    UFO.Visible = false;
                                    mothershiploop.pause();
                                }
                            }
                            else
                            {
                                UFO.MoveTo(UFO.X - 4, UFO.Y);

                                if (UFO.X < -UFO.Control.width)
                                {
                                    UFO.Visible = false;
                                    mothershiploop.pause();
                                }
                            }
                        }
                        #endregion


                        #region do ammo stuff
                        foreach (AmmoInfo v in KnownAmmo)
                        {
                            if (v.Visible)
                            {
                                var y = v.Y + v.Speed;

                                if (Map_Rect.Contains(new Point(v.X, y)))
                                {
                                    // did we hit?
                                    if (DoAmmoDamage(v))
                                    {

                                        v.Visible = false;
                                    }
                                    else
                                    {
                                        v.MoveTo(v.X, y);
                                    }
                                }
                                else
                                {
                                    v.Visible = false;
                                }
                            }
                        }
                        #endregion



                        var AliveEnemies = Enumerable.Where(KnownEnemies.ToArray(), i => i.Visible);
                        var AliveCount = Enumerable.Count(AliveEnemies);

                        if (AliveCount == 0)
                        {
                            EndGame("Aliens destoried");

                            return;
                        }

                        if (GameTimer.Counter % (AliveCount / 2) == 0)
                        {
                            EnemyAction();
                        }

                    };


                #region ResetGame
                Action ResetGame =
                    delegate
                    {
                        mmenu.Visible = false;

                        Player_X = 220;
                        board.Score = 0;
                        board.Lives = 3;

                        Player.Show();

                        foreach (Concrete v in KnownConcrete.ToArray())
                        {
                            v.Health = 255;
                            v.Visible = true;
                        }


                        foreach (EnemyUnit v in KnownEnemies.ToArray())
                        {
                            v.ResetPosition();
                            v.Visible = true;
                        }

                        EnemyAction();

                        GameTimer.StartInterval(50);

                        UpdatePlayer(0);
                    };
                #endregion

                Action EgoShoot =
                    delegate
                    {
                        if (!Player_Ammo.Visible)
                        {
                            Player_Ammo.MoveTo(Player_X, Player_Y - 20);

                            new SpaceInvadersTemplate.HTML.Audio.FromAssets.firemissile().play();

                            Player_Ammo.Visible = true;

                        }
                    };

                overlay.ControlInBack.onclick +=
                    delegate
                    {
                        if (mmenu.Visible)
                            ResetGame();
                        else
                            EgoShoot();
                    };


                double gamma = 0;

                //Native.window.ondeviceorientation +=
                //    eventData =>
                //    {
                //        if (eventData.gamma < -50)
                //            gamma = eventData.beta;
                //        else
                //            gamma = eventData.gamma;


                //    };

                new ScriptCoreLib.JavaScript.Runtime.Timer(
                    t =>
                    {
                        // gamma is the left-to-right tilt in degrees, where right is positive
                        if (gamma < -15)
                        {
                            if (mmenu.Visible)
                                ResetGame();
                            else
                                UpdatePlayer(-Player_X_step);
                        }

                        if (gamma > 15)
                        {
                            if (mmenu.Visible)
                                ResetGame();
                            else
                                UpdatePlayer(Player_X_step);
                        }
                    }
                ).StartInterval(100);

                Native.Document.onkeydown += delegate(IEvent ev)
                {
                    Console.WriteLine(new { ev.KeyCode }.ToString());

                    if (mmenu.Visible)
                    {
                        if (ev.IsReturn)
                        {

                            ResetGame();

                        }

                        return;
                    }
                    else
                    {
                        if (ev.IsEscape)
                        {
                            GameTimer.Stop();

                            Player.Hide();

                            mmenu.Visible = true;

                            foreach (AmmoInfo v in KnownAmmo)
                            {
                                v.Visible = false;
                            }

                            foreach (Concrete v in KnownConcrete.ToArray())
                            {
                                v.Visible = false;
                            }

                            foreach (EnemyUnit v in KnownEnemies.ToArray())
                            {
                                v.Visible = false;
                            }

                            UFO.Visible = false;

                            gameovermenu.Visible = false;

                            // the animated gifs would stop after escape key
                            ev.preventDefault();

                            GamePaused = false;
                        }
                    }

                    int key_p = 80;


                    if (ev.KeyCode == key_p)
                    {
                        GamePaused = !GamePaused;
                    }

                    // player shouldn't really move while game is paused
                    // its cheating:)
                    if (GamePaused)
                        return;

                    int key_right = 39;
                    int key_left = 37;

                    if (ev.KeyCode == key_left)
                    {
                        UpdatePlayer(-Player_X_step);
                    }
                    else if (ev.KeyCode == key_right)
                    {
                        UpdatePlayer(Player_X_step);
                    }
                    else if (ev.IsSpaceOrEnterKey())
                    {
                        // the animated gifs would stop after escape key
                        ev.preventDefault();

                        EgoShoot();
                    }
                    else
                    {
                        Console.WriteLine(new { UnknownKeyCode = ev.KeyCode }.ToString());
                    }
                };

                msg_loading.Orphanize();
            }
            , 50);


        }