using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Threading;

using UITimer = System.Windows.Forms.Timer;

namespace Client
{
    public partial class Form1 : Form
    {
        // note !-> all the consts' values mean this.width (OR height) / value
        private const int ALLIGMENT_FROM_TOP = 20; // the alligment from the top of the screen
        private const int ALLIGMENT_FROM_LEFT = 20; // the alligment from the Left of the screen
        private const int LOG_IN_FORM_TXT_X_SIZE = 4; // the size of the text boxes in x axis which will be shown on the screen
        private const int LOG_IN_FORM_TEXT_SECTOR_HEIGHT = 2; // the height of the username password and email text boxes
        private const int LOG_IN_FORM_ALLGIMENT_FROM_TEXT_TO_LABEL = 50; // alligment from label to textbox
        private const int LOG_IN_FORM_PICBOX_HEIGHT = 4; // the height of the buttons (width / 4)
        private const int SIGN_OUT_FORM_BACK_HEIGHT_WIDTH = 6; // the height and width of the back button
        private const int CLOSE_GAME_BUTTON_WIDTH = 7; // the width of the close button
        private const int CLOSE_GAME_BUTTON_HEIGHT = 16; // the height of the close button
        private const int MAIN_FORM_PICBOX_HEIGHT = 10; // the height of the picture boxes in main form
        private const int MAIN_FORM_PICBOX_WIDTH = 5; // the width of the picture boxes in the main form
        private const int MAIN_FORM_LOG_OUT_HEIGHT = 12; // the height of the log out button
        private const int MAIN_FORM_LOG_OUT_WIDTH = 7; // the width of the log out button
        private const int BEST_SCORES_FORM_PB_HEIGHT = 4; // the height of the best scores pictures
        private const int BEST_SCORES_FORM_PB_WIDTH = 5; // the width of the best scores picture
        private const int JOIN_ROOM_FORM_ROOMS_LB_WIDTH = 4; // the width of the rooms list
        private const int JOIN_ROOM_FORM_USERS_LB_WIDTH = 5; // the width of the users list
        private const int JOIN_ROOM_FORM_BUTTON_SECTOR_Y = 4; // the height of the button sector
        private const int JOIN_ROOM_FORM_REFRESH_HEIGHT = 2; // the height of the refresh button
        private const int JOIN_ROOM_FORM_REFRESH_WIDTH = 8; // the width of the refresh button
        private const int JOIN_ROOM_FORM_JOIN_HEIGHT = 8; // the height of the join button
        private const int JOIN_ROOM_FORM_JOIN_WIDTH = 4; // the width of the join button
        private const int IN_ROOM_FORM_BUTTON_SECTOR_Y = 6; // the height of the button sector
        private const int IN_ROOM_FORM_BUTTON_HEIGHT = 8; // the height of the button
        private const int IN_ROOM_FORM_BUTTON_WIDTH = 3; // the width of the button
        private const int IN_ROOM_FORM_LB_WIDTH = 4; // the width of the list box
        private const int CREATE_ROOM_FORM_BUTTON_HEIGHT = 10; // the height of create button
        private const int CREATE_ROOM_FORM_BUTTON_WIDTH = 3; // the width of the create button
        private const int IN_GAME_FORM_LEAVE_BUTTON_WIDTH = 3; // the width of the leave button
        private const int IN_GAME_FORM_LEAVE_BUTTON_HEIGHT = 10; // the height of the leave button
        private const int IN_GAME_FORM_ANSWER_BUTTON_HEIGHT = 8; // the height of the answers buttons
        private const int IN_GAME_FORM_ANSWER_BUTTON_WIDTH = 3;  // the width of the answer buttons

        //private static int yAxisSpace; // the space remains after the alligment is substracted in y axis
        //private static int xAxisSpace; // the space remains after the alligment is substracted in x axis

        private MyPictureBox PBClose; // the close button, <> needs to be disposed
        private Thread t; // Thread to handle messages from the server
        private Stream stream; // creates a connection with the server by ip and port
        private int alligmentFromSubjectY; // the alligment in y axis from the subject
        private string uid; // the username of the signed in user
        private string roomName; // the name of the room the user is currently at
        private List<string> roomProperties; // the properties of the room the user is currently at
        private List<string> roomsID; // all the rooms id which the user can connect them
        private UITimer gameTimer; // the time for the current question
        private string buttonAnswer;
        private string questionTime; // the time a client has to answer a question
        private string maxQuestion; // the question the current games has

        public Form1()
        {
            InitializeComponent();

            this.Width = Screen.PrimaryScreen.Bounds.Width;
            this.Height = Screen.PrimaryScreen.Bounds.Height;

            InitStaticVars();
            //InitGameScreen(null, EventArgs.Empty);
            //changeQuestion(new List<string> { "WHO IS Dolev", "Retard", "0", "IDIOT", "hmor" });
            //InitCreateRoom(null, EventArgs.Empty);
            //InitInsideRoom(null, EventArgs.Empty);
            //ChangeLabels(new List<string> { "4", "5" });
            //ChangeLBpart(new List<string> { "tal", "dolev" });
            //InitPersonalStatus(null, EventArgs.Empty);
            //ChangePersonalStatus(new string[4] { "4", "10", "5", "3" });
            InitLoginScreen(null, EventArgs.Empty);
            //InitSignUp(null, EventArgs.Empty);
            //InitMainScreen(null, EventArgs.Empty);
            //InitBestScores(null, EventArgs.Empty);
            //KeyValuePair<string, string>[] arr = new KeyValuePair<string, string>[3];
            //arr[0] = new KeyValuePair<string, string>("tal", "100");
            //arr[1] = new KeyValuePair<string, string>("Dolev", "0");
            //arr[2] = new KeyValuePair<string, string>("yarin", "10");
            //changeBestScores(arr);
            //CleanAllControlers();
        }

        /// <summary>
        /// initializes all static variables of custom classes, and current class
        /// </summary>
        public void InitStaticVars()
        {
            this.roomsID = new List<string>();
            this.roomProperties = new List<string>();

            this.stream = new Stream("127.0.0.1", 8686);

            t = new Thread(handleMessage);
            t.Start();

            gameTimer = new UITimer();
            gameTimer.Interval = 1000; // 1 sec
            gameTimer.Tick += (EventHandler)delegate
            {
                Label time = this.Controls.Find("LBLTime", false).FirstOrDefault() as Label;
                //MessageBox.Show(time.Text);
                time.Text = ((int.Parse(time.Text) - 1).ToString());
                time.Width = TextRenderer.MeasureText(time.Text, time.Font).Width;
                time.Location = new Point(this.Width / 2 - time.Width / 2, time.Location.Y);

                // in case half of the time passed the background of the time turns to red
                if (int.Parse(time.Text) <= int.Parse(this.questionTime) / 2)
                {
                    time.BackColor = Color.Red;
                }

                if (time.Text == "0")
                {
                    Button[] buttons = new Button[4];
                    buttons[0] = this.Controls.Find("BTN1st", false).FirstOrDefault() as Button;
                    buttons[1] = this.Controls.Find("BTN2nd", false).FirstOrDefault() as Button;
                    buttons[2] = this.Controls.Find("BTN3rd", false).FirstOrDefault() as Button;
                    buttons[3] = this.Controls.Find("BTN4th", false).FirstOrDefault() as Button;

                    for (int i = 0; i < 4; i++)
                    {
                        buttons[i].BackColor = Color.Red;
                    }

                    stream.sendData(string.Format("2195{0:00}", int.Parse(this.questionTime)));

                    gameTimer.Stop(); // the time is up
                }
            };

            // MyTxtBox Class:
            // the default width of the text box
            MyTxtBox._width = (this.Width / LOG_IN_FORM_TXT_X_SIZE);

            // current class:
            // sets the close button
            PBClose = new MyPictureBox("PBClose", "close", new Size(this.Width / CLOSE_GAME_BUTTON_WIDTH, this.Height / CLOSE_GAME_BUTTON_HEIGHT));
            PBClose.Location = new Point(this.Width / 2 - PBClose.Width / 2, this.Height - PBClose.Height - this.Height / ALLIGMENT_FROM_TOP);
            PBClose.Click += PBClose_Click;
            this.Controls.Add(PBClose);

            // sets the alligment from top of screen
            alligmentFromSubjectY = this.Height / ALLIGMENT_FROM_TOP;

            uid = "tal";
        }

        /// <summary>
        /// makes the login is screen
        /// </summary>
        public void InitLoginScreen(object sender, EventArgs args)
        {
            int reminingY = this.Height;
            int nextYPos = 0;
            int xOfTextBoxes = 0;
            int sizeOfPictureBox = 0;
            int alligmentFromPictureBox = 0;
            int alligmentFromTextBoxes = 0;
            int alligmentFromTextBoxesToLabels = this.Width / LOG_IN_FORM_ALLGIMENT_FROM_TEXT_TO_LABEL;
            int xOfPicBoxes = 0;
            List<Control> cont = new List<Control>();

            // sets the background of the page
            this.BackgroundImage = Client.Properties.Resources.loginBG;

            // sets the color of the letters
            this.ForeColor = Color.White;

            // sets the subject label
            Label LBLSubject = new MyLabel("Please Log In", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            cont.Add(LBLSubject);

            nextYPos = LBLSubject.Location.Y + alligmentFromSubjectY + LBLSubject.Height; // begining of details section
            reminingY -= nextYPos; // sets the space of details section

            // sets the text box of username
            TextBox TXTuserName = new MyTxtBox("TXTusername"); // i create a label to know the height of its font
            alligmentFromTextBoxes = ((reminingY / LOG_IN_FORM_TEXT_SECTOR_HEIGHT) - (TXTuserName.Height * 2)) / 3; // generates the needed alligment
            nextYPos += alligmentFromTextBoxes;
            reminingY -= reminingY / LOG_IN_FORM_TEXT_SECTOR_HEIGHT; // sets the space of buttons section

            TXTuserName.Location = new Point((this.Width / 2) - (TXTuserName.Width / 2), nextYPos);
            cont.Add(TXTuserName);

            // sets the label of username
            Label LBLusername = new MyLabel("UserName: ", "LBLusername"); // sets the label of the userName
            LBLusername.Location = new Point(TXTuserName.Location.X - LBLusername.Width - alligmentFromTextBoxesToLabels, nextYPos);
            cont.Add(LBLusername);

            nextYPos += (TXTuserName.Height + alligmentFromTextBoxes); // sets the position of the next textBox
            xOfTextBoxes = TXTuserName.Location.X;

            // sets the text box of password
            TextBox TXTpsw = new MyTxtBox(new Point(xOfTextBoxes, nextYPos), "TXTpsw");
            cont.Add(TXTpsw);

            // sets the label of password
            Label LBLpsw = new MyLabel("password: ", "LBLpsw"); // sets the password label
            LBLpsw.Location = new Point(xOfTextBoxes - LBLpsw.Width - alligmentFromTextBoxesToLabels, nextYPos);
            cont.Add(LBLpsw);

            nextYPos += (TXTuserName.Height + alligmentFromTextBoxes); // sets the begining of the buttons sector

            // sets the buttons section
            sizeOfPictureBox = reminingY / LOG_IN_FORM_PICBOX_HEIGHT;
            reminingY -= (sizeOfPictureBox * 2);
            alligmentFromPictureBox = reminingY / 2;

            // sets the sign in button
            PictureBox PBSignIn = new MyPictureBox("PBSignIn", "SignIn", new Size(TXTuserName.Width, sizeOfPictureBox));
            xOfPicBoxes = (this.Width / 2) - (PBSignIn.Width / 2); // sets the x of picture boxes
            PBSignIn.Location = new Point(xOfPicBoxes, nextYPos);
            PBSignIn.Click += (EventHandler)PBSign_In_Click;
            cont.Add(PBSignIn);

            nextYPos += alligmentFromPictureBox;

            // sets the signup button
            PictureBox PBSignUp = new MyPictureBox("PBSignUp", "SignUp", new Size(PBSignIn.Width, sizeOfPictureBox));
            PBSignUp.Location = new Point(xOfPicBoxes, nextYPos);
            PBSignUp.Click += (EventHandler)(CleanAllControlers);
            PBSignUp.Click += (EventHandler)InitSignUp;
            cont.Add(PBSignUp);

            this.Controls.AddRange(cont.ToArray());
        }

        /// <summary>
        /// sets the form to be sign up page
        /// </summary>
        public void InitSignUp(object sender, EventArgs args)
        {
            int reminingY = this.Height;
            int nextYPos = 0;
            int xOfTextBoxes = 0;
            int sizeOfPictureBox = 0;
            int alligmentFromPictureBox = 0;
            int alligmentFromTextBoxes = 0;
            int alligmentFromTextBoxesToLabels = this.Width / LOG_IN_FORM_ALLGIMENT_FROM_TEXT_TO_LABEL;
            int xOfPicBoxes = 0;
            List<Control> cont = new List<Control>();

            // sets the background
            this.BackgroundImage = Properties.Resources.signUpBG;

            // sets the color of the letters
            this.ForeColor = Color.Black;

            // sets the subject label
            Label LBLSubject = new MyLabel("Please Sign Up", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            cont.Add(LBLSubject);

            nextYPos = LBLSubject.Location.Y + alligmentFromSubjectY + LBLSubject.Height; // begining of details section
            reminingY -= nextYPos; // sets the space of details section

            // sets the text box of username
            TextBox TXTuserName = new MyTxtBox("TXTusername"); // i create a label to know the height of its font
            alligmentFromTextBoxes = ((reminingY / LOG_IN_FORM_TEXT_SECTOR_HEIGHT) - (TXTuserName.Height * 3)) / 4; // generates the needed alligment
            nextYPos += alligmentFromTextBoxes;
            reminingY -= reminingY / LOG_IN_FORM_TEXT_SECTOR_HEIGHT; // sets the space of buttons section

            TXTuserName.Location = new Point((this.Width / 2) - (TXTuserName.Width / 2), nextYPos);
            cont.Add(TXTuserName);

            // sets the label of username
            Label LBLusername = new MyLabel("UserName: ", "LBLusername"); // sets the label of the userName
            LBLusername.Location = new Point(TXTuserName.Location.X - LBLusername.Width - alligmentFromTextBoxesToLabels, nextYPos);
            cont.Add(LBLusername);

            nextYPos += (TXTuserName.Height + alligmentFromTextBoxes); // sets the position of the next textBox
            xOfTextBoxes = TXTuserName.Location.X;

            // sets the text box of password
            TextBox TXTpsw = new MyTxtBox(new Point(xOfTextBoxes, nextYPos), "TXTpsw");
            cont.Add(TXTpsw);

            // sets the label of password
            Label LBLpsw = new MyLabel("password: ", "LBLpsw"); // sets the password label
            LBLpsw.Location = new Point(xOfTextBoxes - LBLpsw.Width - alligmentFromTextBoxesToLabels, nextYPos);
            cont.Add(LBLpsw);

            nextYPos += (TXTuserName.Height + alligmentFromTextBoxes); // sets the position of the next textBox

            // sets the text box of email
            TextBox TXTemail = new MyTxtBox(new Point(xOfTextBoxes, nextYPos), "TXTemail");
            cont.Add(TXTemail);

            // sets the label of email
            Label LBLemail = new MyLabel("email: ", "LBLemail");
            LBLemail.Location = new Point(xOfTextBoxes - LBLemail.Width - alligmentFromTextBoxesToLabels, nextYPos);
            cont.Add(LBLemail);

            nextYPos += (TXTuserName.Height + alligmentFromTextBoxes); // sets the begining of the buttons sector

            // sets the buttons section
            sizeOfPictureBox = reminingY / LOG_IN_FORM_PICBOX_HEIGHT;
            reminingY -= (sizeOfPictureBox * 2);
            alligmentFromPictureBox = reminingY / 2;

            // sets the sign up button
            PictureBox PBSignUp = new MyPictureBox("PBSignUp", "SignUp", new Size(TXTemail.Width, sizeOfPictureBox));
            xOfPicBoxes = (this.Width / 2) - (PBSignUp.Width / 2); // sets the x of picture boxes
            PBSignUp.Location = new Point(xOfPicBoxes, nextYPos);
            PBSignUp.Click += (EventHandler)PBSign_Up_Click;
            //PBSignUp.Click += (EventHandler)CleanAllControlers;
            cont.Add(PBSignUp);

            // sets the back button
            int PCHeight = this.Height / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            int PCWidth = this.Width / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            PictureBox PBBack = new MyPictureBox("PBBack", "back", new Size(PCWidth, PCHeight));
            PBBack.Location = new Point(this.Width - PCWidth, this.Height / ALLIGMENT_FROM_TOP);
            PBBack.Click += (EventHandler)CleanAllControlers;
            PBBack.Click += (EventHandler)InitLoginScreen;
            cont.Add(PBBack);

            this.Controls.AddRange(cont.ToArray());
        }

        /// <summary>
        /// builds the main screen
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="args"></param>
        public void InitMainScreen(object sender, EventArgs args)
        {
            int nextYPos = 0;
            int reminingY = PBClose.Location.Y;
            int heightOfPB = this.Height / MAIN_FORM_PICBOX_HEIGHT;
            int widthOfPB = this.Width / MAIN_FORM_PICBOX_WIDTH;
            int alligmentFromButtonsY = 0;
            int alligmentFromButtonsX = 0;

            // sets the background of the screen
            this.BackgroundImage = Properties.Resources.mainScreenBG;

            // sets the font color to black
            this.ForeColor = Color.Black;

            // sets the subject label
            Label LBLSubject = new MyLabel("Hello " + uid, "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            this.Controls.Add(LBLSubject);

            // configures all the propeties needed for the button
            nextYPos = LBLSubject.Location.Y + alligmentFromSubjectY;
            reminingY -= (nextYPos - heightOfPB * 2);
            alligmentFromButtonsY = reminingY / 3;
            nextYPos += (alligmentFromButtonsY / 2);
            alligmentFromButtonsX = (this.Width - widthOfPB * 3) / 3;

            // sets the Join room button
            Button BTNJoin = new MyButton("BTNJoin", new Size(widthOfPB, heightOfPB), "Join Room");
            BTNJoin.Location = new Point(alligmentFromButtonsX, nextYPos);
            BTNJoin.Click += (EventHandler)CleanAllControlers;
            BTNJoin.Click += (EventHandler)InitJoinRoom;
            BTNJoin.Click += (EventHandler)BTNJoin_Click;
            this.Controls.Add(BTNJoin);

            // sets the Create room button
            Button BTNCreate = new MyButton("BTNCreate", new Size(widthOfPB, heightOfPB), "Create Room");
            BTNCreate.Location = new Point(this.Width - widthOfPB - alligmentFromButtonsX, nextYPos);
            BTNCreate.Click += (EventHandler)CleanAllControlers;
            BTNCreate.Click += (EventHandler)InitCreateRoom;
            this.Controls.Add(BTNCreate);

            nextYPos += alligmentFromButtonsY;

            // sets the best scores button
            Button BTNBest = new MyButton("BTNBest", new Size(widthOfPB, heightOfPB), "Best Scores");
            BTNBest.Location = new Point(alligmentFromButtonsX, nextYPos);
            BTNBest.Click += (EventHandler)CleanAllControlers;
            BTNBest.Click += (EventHandler)InitBestScores;
            BTNBest.Click += (EventHandler)BTNBest_Click;
            this.Controls.Add(BTNBest);

            // sets the personal status
            Button BTNPersonal = new MyButton("BTNPersonal", new Size(widthOfPB, heightOfPB), "My Status");
            BTNPersonal.Location = new Point(this.Width - widthOfPB - alligmentFromButtonsX, nextYPos);
            BTNPersonal.Click += (EventHandler)CleanAllControlers;
            BTNPersonal.Click += (EventHandler)InitPersonalStatus;
            BTNPersonal.Click += (EventHandler)BTNPersonal_Click;

            this.Controls.Add(BTNPersonal);

            // sets the logout button
            PictureBox PBLogOut = new MyPictureBox("PBLogOut", "signOut", new Size(this.Height / MAIN_FORM_LOG_OUT_WIDTH, this.Width / MAIN_FORM_LOG_OUT_HEIGHT));
            PBLogOut.Location = new Point(this.Width / ALLIGMENT_FROM_LEFT, this.Height / ALLIGMENT_FROM_TOP);
            PBLogOut.Click += (EventHandler)CleanAllControlers;
            PBLogOut.Click += (EventHandler)InitLoginScreen;
            PBLogOut.Click += (EventHandler)PBLogOut_Click;
            this.Controls.Add(PBLogOut);
        }

        /// <summary>
        /// inits the join room screen
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="args"></param>
        private void InitJoinRoom(object sender, EventArgs args)
        {
            int nextYPos = 0;
            int alligmentFromClose = this.Height - this.PBClose.Location.Y - this.PBClose.Height;
            int alligmentFromButtonsY = 0;
            int alligmentFromButtonsX = 0;
            int buttonSectorY = 0;
            int alligmentFromListsX = 0;
            int refreshY = 0;
            int joinY = 0;
            int reminingY = this.PBClose.Location.Y;

            // sets the form to join room bg
            this.BackgroundImage = Properties.Resources.joinRoomBG;

            // changes the fore color to black
            this.ForeColor = Color.Black;

            // sets the subject label
            Label LBLSubject = new MyLabel("Choose Room", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            this.Controls.Add(LBLSubject);

            nextYPos = LBLSubject.Location.Y + LBLSubject.Height + alligmentFromSubjectY;
            reminingY -= nextYPos;

            // configures the button sector properties
            buttonSectorY = reminingY / JOIN_ROOM_FORM_BUTTON_SECTOR_Y;
            refreshY = buttonSectorY / JOIN_ROOM_FORM_REFRESH_HEIGHT;
            joinY = buttonSectorY / JOIN_ROOM_FORM_JOIN_HEIGHT;
            alligmentFromButtonsY = (buttonSectorY - refreshY - joinY) / 2;
            alligmentFromButtonsX = (this.Width - this.Width / JOIN_ROOM_FORM_REFRESH_WIDTH - this.Width / JOIN_ROOM_FORM_JOIN_WIDTH) / 3;

            // configures and adds the refresh button
            PictureBox PBRefresh = new MyPictureBox("PBRefresh", "refresh", new Size(this.Width / JOIN_ROOM_FORM_REFRESH_WIDTH, refreshY));
            PBRefresh.Location = new Point(alligmentFromButtonsX, PBClose.Location.Y - alligmentFromButtonsY - refreshY);
            PBRefresh.Click += (EventHandler)PBRefresh_Click;
            this.Controls.Add(PBRefresh);

            // configures and adds the join button
            PictureBox PBJoin = new MyPictureBox("PBJoin", "joinBTN", new Size(this.Width / JOIN_ROOM_FORM_JOIN_WIDTH, this.Height / JOIN_ROOM_FORM_JOIN_HEIGHT));
            PBJoin.Location = new Point(this.Width - PBJoin.Width - alligmentFromButtonsX, PBRefresh.Location.Y);
            PBJoin.Click += (EventHandler)PBJoin_Click;
            //PBJoin.Click += (EventHandler)CleanAllControlers;
            //PBJoin.Click += (EventHandler)InitInsideRoom;
            this.Controls.Add(PBJoin);

            reminingY = PBRefresh.Location.Y - LBLSubject.Location.Y - LBLSubject.Height - alligmentFromSubjectY;
            ListBox LBRooms = new MyListBox("LBRooms", new Size(this.Width / JOIN_ROOM_FORM_ROOMS_LB_WIDTH, reminingY / 4));
            ListBox LBUsers = new MyListBox("LBUsers", new Size(this.Width / JOIN_ROOM_FORM_USERS_LB_WIDTH, reminingY / 4));

            alligmentFromListsX = (this.Width - LBRooms.Width - LBUsers.Width) / 3;

            Label LBLRooms = new MyLabel("Rooms:", "LBLRooms");
            Label LBLUsers = new MyLabel("Users:", "LBLUsers");

            // adds the rooms list box
            LBRooms.Location = new Point(this.Width / 2 - LBRooms.Width / 2, nextYPos + LBLRooms.Height);
            LBRooms.SelectedIndexChanged += (EventHandler)LBRooms_SelectedIndexChanged;
            this.Controls.Add(LBRooms);

            // sets the users list box
            LBUsers.Location = new Point(alligmentFromListsX, nextYPos + LBLUsers.Height);
            LBUsers.Visible = false;
            this.Controls.Add((LBUsers));

            // configures and adds the label of rooms
            LBLRooms.Location = new Point(LBRooms.Location.X + LBRooms.Width / 2 - LBLRooms.Width / 2, nextYPos);
            this.Controls.Add(LBLRooms);

            // configures and adds the label of users
            LBLUsers.Location = new Point(LBUsers.Location.X + LBUsers.Width / 2 - LBLRooms.Width / 2, nextYPos);
            LBLUsers.Visible = false;
            this.Controls.Add(LBLUsers);

            // sets the back button
            int PCHeight = this.Height / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            int PCWidth = this.Width / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            PictureBox PBBack = new MyPictureBox("PBBack", "back", new Size(PCWidth, PCHeight));
            PBBack.Location = new Point(this.Width - PCWidth, this.Height / ALLIGMENT_FROM_TOP);
            PBBack.Click += (EventHandler)CleanAllControlers;
            PBBack.Click += (EventHandler)InitMainScreen;
            this.Controls.Add(PBBack);
        }

        /// <summary>
        /// changes the room list in the join room form
        /// should be called when the join room button or refresh button were clicked
        /// </summary>
        /// <param name="roomsNames">the names of the rooms that will be shown on the list box</param>
        private void changeRoomsList(List<string> roomsNames)
        {
            if (roomsNames.Count < 1) // so that the list will still be shown even if there are no available rooms
            {
                roomsNames.Add("");
                roomsID.Add("-1"); // so the user cant join this fake room
            }

            ListBox LBUsers = this.Controls.Find("LBUsers", false).FirstOrDefault() as ListBox;
            Label LBLUsers = this.Controls.Find("LBLUsers", false).FirstOrDefault() as Label;

            // makes the users lists to disapear
            LBUsers.Visible = false;
            LBLUsers.Visible = false;

            ListBox LBRooms = this.Controls.Find("LBRooms", false).FirstOrDefault() as ListBox;
            if (LBRooms != null)
            {
                LBRooms.Items.Clear();
                foreach (string name in roomsNames)
                {
                    LBRooms.Items.Add(name);
                }

                Label LBLRooms = this.Controls.Find("LBLRooms", false).FirstOrDefault() as Label;
                PictureBox PBRefresh = this.Controls.Find("PBRefresh", false).FirstOrDefault() as PictureBox;

                // sets the height of the list box
                if (LBLRooms != null && PBRefresh != null)
                {
                    int maxHeight = PBRefresh.Location.Y - LBLRooms.Location.Y - LBLRooms.Height - alligmentFromSubjectY;
                    int height = LBRooms.ItemHeight;
                    int maxObj = maxHeight / height;

                    LBRooms.Height = roomsNames.Count > maxObj ? height * maxObj : roomsNames.Count * height;
                }

                // moves the list box to its proper place
                LBRooms.Location = new Point(this.Width / 2 - LBRooms.Width / 2, LBRooms.Location.Y);
                LBLRooms.Location = new Point(LBRooms.Location.X + LBRooms.Width / 2 - LBLRooms.Width / 2, LBLRooms.Location.Y);

                this.Update();
            }
        }

        /// <summary>
        /// changes the users in room list box
        /// should be called when an item on the rooms list is clicked
        /// </summary>
        /// <param name="users">the users that will be presented on the users list</param>
        private void changeUsersInRoom(List<string> users)
        {
            if (users.Count < 1)
            {
                users.Add("");
            }

            ListBox LBUsers = this.Controls.Find("LBUsers", false).FirstOrDefault() as ListBox;
            Label LBLUsers = this.Controls.Find("LBLUsers", false).FirstOrDefault() as Label;
            Label LBLRooms = this.Controls.Find("LBLRooms", false).FirstOrDefault() as Label;
            PictureBox PBRefresh = this.Controls.Find("PBRefresh", false).FirstOrDefault() as PictureBox;
            ListBox LBRooms = this.Controls.Find("LBRooms", false).FirstOrDefault() as ListBox;

            // sets the height of the list box
            if (LBLUsers != null && PBRefresh != null && LBUsers != null)
            {
                int maxHeight = PBRefresh.Location.Y - LBLUsers.Location.Y - LBLUsers.Height - alligmentFromSubjectY;
                int height = LBUsers.ItemHeight;
                int maxObj = maxHeight / height;

                // changes the items in the list box
                LBUsers.Items.Clear();
                foreach (string user in users)
                {
                    LBUsers.Items.Add(user);
                }

                LBUsers.Height = users.Count > maxObj ? height * maxObj : users.Count * height;

                // sets the rooms stuff to their proper place
                LBRooms.Location = new Point(this.Width - LBRooms.Width - LBUsers.Location.X, LBRooms.Location.Y);
                LBLRooms.Location = new Point(LBRooms.Location.X + LBRooms.Width / 2 - LBLRooms.Width / 2, LBLRooms.Location.Y);

                LBUsers.Visible = true;
                LBLUsers.Visible = true;
            }
        }

        private void InitCreateRoom(object sender, EventArgs args)
        {
            int alligmentFromCloseButton = this.Height - this.PBClose.Location.Y - this.PBClose.Height;
            int nextYPos = 0;
            int buttonHeight = this.Height / CREATE_ROOM_FORM_BUTTON_HEIGHT;
            int buttonWidth = this.Width / CREATE_ROOM_FORM_BUTTON_WIDTH;
            int reminingY = 0;
            int alligmentFromTextBoxes = 0;

            this.BackgroundImage = Properties.Resources.createRoom;
            this.ForeColor = Color.Black;

            // sets the subject label
            Label LBLSubject = new MyLabel("Create New Room:", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            this.Controls.Add(LBLSubject);

            // configures and adds the create room button
            Button BTNCreateRoom = new MyButton("BTNCreateRoom", new Size(buttonWidth, buttonHeight), "Create");
            BTNCreateRoom.Location = new Point(this.Width / 2 - buttonWidth / 2, this.PBClose.Location.Y - alligmentFromCloseButton - buttonHeight);
            BTNCreateRoom.Click += (EventHandler)BTNCreateRoom_Click;
            this.Controls.Add(BTNCreateRoom);

            // sets all the required properties for textbox sector
            nextYPos = LBLSubject.Location.Y + alligmentFromSubjectY + LBLSubject.Height;
            reminingY = BTNCreateRoom.Location.Y - nextYPos;
            TextBox TXTRoomName = new MyTxtBox("TXTRoomName"); // i create a text box so i can know its height and width
            alligmentFromTextBoxes = (reminingY - TXTRoomName.Height * 4) / 4 + TXTRoomName.Height;

            // configures and adds the room name textbox
            TXTRoomName.Location = new Point(this.Width / 2 - TXTRoomName.Width / 2, nextYPos);
            this.Controls.Add(TXTRoomName);

            // configures and adds the room name label
            Label LBLRoomName = new MyLabel("Room Name: ", "LBLRoomName");
            LBLRoomName.Location = new Point(TXTRoomName.Location.X - LBLRoomName.Width, nextYPos);
            this.Controls.Add(LBLRoomName);

            nextYPos += alligmentFromTextBoxes;

            // configures and adds the number of players text box
            TextBox TXTNumOfPlayers = new MyTxtBox(new Point(TXTRoomName.Location.X, nextYPos), "TXTNumOfPlayers");
            this.Controls.Add(TXTNumOfPlayers);

            // configures and adds the number of players label
            Label LBLNumOfPlayers = new MyLabel("Number of players: ", "LBLNumOfPlayers");
            LBLNumOfPlayers.Location = new Point(TXTNumOfPlayers.Location.X - LBLNumOfPlayers.Width, nextYPos);
            this.Controls.Add(LBLNumOfPlayers);

            nextYPos += alligmentFromTextBoxes;

            // configures and adds the number of questions text box
            TextBox TXTNumOfQuestions = new MyTxtBox(new Point(TXTRoomName.Location.X, nextYPos), "TXTNumOfQuestions");
            this.Controls.Add(TXTNumOfQuestions);

            // configures and adds the number of question label
            Label LBLNumOfQuestions = new MyLabel("Number of questions: ", "LBLNumOfQuestions");
            LBLNumOfQuestions.Location = new Point(TXTNumOfQuestions.Location.X - LBLNumOfQuestions.Width, nextYPos);
            this.Controls.Add(LBLNumOfQuestions);

            nextYPos += alligmentFromTextBoxes;

            // configures and adds the number of questions text box
            TextBox TXTTimePerAns = new MyTxtBox(new Point(TXTRoomName.Location.X, nextYPos), "TXTTimePerAns");
            this.Controls.Add(TXTTimePerAns);

            // configures and adds the time per answer label
            Label LBLTimePerAns = new MyLabel("Time Per answer: ", "LBLTimePerAns");
            LBLTimePerAns.Location = new Point(TXTTimePerAns.Location.X - LBLTimePerAns.Width, nextYPos);
            this.Controls.Add(LBLTimePerAns);

            // sets the back button
            int PCHeight = this.Height / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            int PCWidth = this.Width / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            PictureBox PBBack = new MyPictureBox("PBBack", "back", new Size(PCWidth, PCHeight));
            PBBack.Location = new Point(this.Width - PCWidth, this.Height / ALLIGMENT_FROM_TOP);
            PBBack.Click += (EventHandler)CleanAllControlers;
            PBBack.Click += (EventHandler)InitMainScreen;
            this.Controls.Add(PBBack);
        }

        /// <summary>
        /// changes the form to inside room performance
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="args"></param>
        private void InitInsideRoom(object sender, EventArgs args)
        {
            int reminingY = this.Height;
            int nextYPos = 0;
            int buttonSectorY = 0;
            int buttonsHeight = this.Height / IN_ROOM_FORM_BUTTON_HEIGHT;
            int buttonWidth = this.Width / IN_ROOM_FORM_BUTTON_WIDTH;
            int alligmentFromButtonsY = 0;
            int alligmentFromLabelsY = 0;
            List<Label> labels = new List<Label>();

            // sets the background to be inside room background
            this.BackgroundImage = Properties.Resources.inRoom;

            // sets the font color to black
            this.ForeColor = Color.Black;

            this.PBClose.Visible = false;

            // sets the subject label
            Label LBLSubject = new MyLabel("You are in " + this.roomName + " room", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            this.Controls.Add(LBLSubject);

            nextYPos = LBLSubject.Location.Y + LBLSubject.Height + alligmentFromSubjectY;
            reminingY -= nextYPos;
            buttonSectorY = reminingY / IN_ROOM_FORM_BUTTON_SECTOR_Y;
            reminingY -= buttonSectorY;
            alligmentFromButtonsY = (buttonSectorY - buttonsHeight) / 2;

            if (sender is PictureBox) // in case its a user presentation
            {
                Button BTNLeave = new MyButton("BTNLeave", new Size(buttonWidth, buttonsHeight), "Leave Room");
                BTNLeave.Location = new Point(this.Width / 2 - buttonWidth / 2, this.Height - buttonsHeight - alligmentFromButtonsY);
                BTNLeave.Click += (EventHandler)BTNLeave_Click;
                this.Controls.Add(BTNLeave);
            }
            else if (sender is Button) // in case its admin presentation
            {
                int alligmentFromButtonsX = (this.Width - buttonWidth * 2) / 3;

                // configures and adds the close room button
                Button BTNCloseRoom = new MyButton("BTNCloseRoom", new Size(buttonWidth, buttonsHeight), "Close Room");
                BTNCloseRoom.Location = new Point(alligmentFromButtonsX, this.Height - BTNCloseRoom.Height - alligmentFromButtonsY);
                BTNCloseRoom.Click += (EventHandler)BTNCloseRoom_Click;
                this.Controls.Add(BTNCloseRoom);

                // configures and adds the start game button
                Button BTNStartGame = new MyButton("BTNStartGame", new Size(buttonWidth, buttonsHeight), "Start Game");
                BTNStartGame.Location = new Point(this.Width - buttonWidth - alligmentFromButtonsX, BTNCloseRoom.Location.Y);
                BTNStartGame.Click += (EventHandler)BTNStartGame_Click;
                this.Controls.Add(BTNStartGame);

                labels.Add(new MyLabel("Max number of users: ", "LBLMaxUsers"));
            }

            Label LBLparticipates = new MyLabel("current participates are: ", "LBLparticipates");

            // configures and adds the participates list box
            ListBox LBpart = new MyListBox("LBpart", new Size(this.Width / IN_ROOM_FORM_LB_WIDTH, reminingY / 4));
            LBpart.Location = new Point(this.Width / 2 - LBpart.Width / 2, nextYPos + LBLparticipates.Height);
            this.Controls.Add(LBpart);

            // configures and adds the label of participates
            LBLparticipates.Location = new Point(LBpart.Location.X + LBpart.Width / 2 - LBLparticipates.Width / 2, nextYPos);
            this.Controls.Add(LBLparticipates);

            // sets the room properties labels
            labels.Add(new MyLabel("Number of questions: ", "LBLNumOfQuestions"));
            labels.Add(new MyLabel("Time per question: ", "LBLTimePerQuestion"));

            // calculates the needed alligment
            alligmentFromLabelsY = (reminingY - labels[0].Height * labels.Count) / (labels.Count + 1);
            nextYPos += alligmentFromLabelsY;

            foreach (Label l in labels)
            {
                l.Location = new Point(0, nextYPos);
                nextYPos += alligmentFromLabelsY;
                this.Controls.Add(l);
            }
        }

        /// <summary>
        /// changes the list box of participates
        /// </summary>
        /// <param name="users">the users to be added to the list box</param>
        private void ChangeLBpart(List<string> users)
        {
            Label LBLparticipates = this.Controls.Find("LBLparticipates", false).FirstOrDefault() as Label;
            ListBox LBpart = this.Controls.Find("LBpart", false).FirstOrDefault() as ListBox;

            if (users.Count < 1)
            {
                users.Add("");
            }

            if (LBLparticipates != null && LBpart != null)
            {
                int maxHeight = this.Height - this.Height / IN_ROOM_FORM_BUTTON_SECTOR_Y - LBLparticipates.Location.Y - LBLparticipates.Height;
                int height = LBpart.ItemHeight;
                int maxObj = maxHeight / height;

                // changes the height of the list box according to the items in it
                LBpart.Height = users.Count > maxObj ? height * maxObj : height * users.Count;

                LBpart.Items.Clear();
                foreach (string user in users)
                {
                    LBpart.Items.Add(user);
                }
            }
        }

        /// <summary>
        /// changes the labels of in room properties
        /// in case of user presentation the properties param should be made out of the string the server sent
        /// in case of admin presentation the properties param should be the global parameter roomProperties
        /// </summary>
        /// <param name="properties">the properties that would be in the labels, the order should be maxusers(if exists), numberOfQuestions, time per questions</param>
        private void ChangeLabels(List<string> properties)
        {
            Label[] labels = new Label[properties.Count];

            if (properties.Count > 2)
            {
                labels[0] = this.Controls.Find("LBLMaxUsers", false).FirstOrDefault() as Label;
            }

            labels[labels.Length - 2] = this.Controls.Find("LBLNumOfQuestions", false).FirstOrDefault() as Label;
            labels[labels.Length - 1] = this.Controls.Find("LBLTimePerQuestion", false).FirstOrDefault() as Label;
            MessageBox.Show("[1] = " + labels[labels.Length - 1].Text + "\n[2] = " + labels[labels.Length - 2].Text);
            this.questionTime = int.Parse(properties[properties.Count - 1]).ToString();
            this.maxQuestion = int.Parse(properties[properties.Count - 2]).ToString();

            for (int i = 0; i < labels.Length; i++)
            {
                if (labels[i] != null)
                {
                    labels[i].Text += (int.Parse(properties[i]).ToString());
                    labels[i].Width = TextRenderer.MeasureText(labels[i].Text, labels[i].Font).Width;
                }
            }
        }

        private void InitGameScreen(object sender, EventArgs args)
        {
            int nextYPos = 0;
            int reminingY = 0;
            int alligmentFromButtonsY = 0;
            int alligmentFromButtonsX = 0;
            int buttonHeight = this.Height / IN_GAME_FORM_ANSWER_BUTTON_HEIGHT;
            int buttonWidth = this.Width / IN_GAME_FORM_ANSWER_BUTTON_WIDTH;

            this.PBClose.Visible = false;

            this.BackgroundImage = Properties.Resources.gameBG;
            this.ForeColor = Color.Black;

            // sets the subject label
            Label LBLSubject = new MyLabel("You are in game", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            this.Controls.Add(LBLSubject);

            // configures and sets a new button
            Button BTNLeaveGame = new MyButton("BTNLeaveGame", new Size(this.Width / IN_GAME_FORM_LEAVE_BUTTON_WIDTH, this.Height / IN_GAME_FORM_LEAVE_BUTTON_HEIGHT), "Leave Game");
            BTNLeaveGame.Location = new Point(this.Width / 2 - BTNLeaveGame.Width / 2, this.Height - BTNLeaveGame.Height - this.Height / ALLIGMENT_FROM_TOP);
            BTNLeaveGame.Click += BTNLeaveGame_Click;
            this.Controls.Add(BTNLeaveGame);

            nextYPos = LBLSubject.Location.Y + LBLSubject.Height + alligmentFromSubjectY;
            reminingY = BTNLeaveGame.Location.Y;

            // configures and sets the question label
            Label LBLQuestion = new MyLabel("Question", "LBLQuestion");
            LBLQuestion.Location = new Point(0, nextYPos);
            this.Controls.Add(LBLQuestion);

            nextYPos += LBLQuestion.Height;

            reminingY -= nextYPos;
            alligmentFromButtonsY = (reminingY - buttonHeight * 2) / 3;
            alligmentFromButtonsX = (this.Width - buttonWidth * 2) / 3;

            nextYPos += alligmentFromButtonsY;

            // configures and sets the time left label
            Label LBLTime = new MyLabel(this.questionTime, "LBLTime");
            LBLTime.Location = new Point(this.Width / 2 - LBLTime.Width / 2, nextYPos - (nextYPos - LBLQuestion.Location.Y) / 2 - LBLTime.Height / 2);
            this.Controls.Add(LBLTime);

            // configures and adds the first answer button
            Button BTN1st = new MyButton("BTN1st", new Size(buttonWidth, buttonHeight), "");
            BTN1st.Location = new Point(alligmentFromButtonsX, nextYPos);
            BTN1st.Click += BTN1st_Click;
            this.Controls.Add(BTN1st);

            // configures and adds the second answer button
            Button BTN2nd = new MyButton("BTN2nd", new Size(buttonWidth, buttonHeight), "");
            BTN2nd.Location = new Point(this.Width - buttonWidth - alligmentFromButtonsX, nextYPos);
            BTN2nd.Click += BTN2nd_Click;
            this.Controls.Add(BTN2nd);

            nextYPos += BTN2nd.Height + alligmentFromButtonsY;

            // configures and adds the third answer button
            Button BTN3rd = new MyButton("BTN3rd", new Size(buttonWidth, buttonHeight), "");
            BTN3rd.Location = new Point(alligmentFromButtonsX, nextYPos);
            BTN3rd.Click += BTN3rd_Click;
            this.Controls.Add(BTN3rd);

            // configures and adds the fourth answer button
            Button BTN4th = new MyButton("BTN4th", new Size(buttonWidth, buttonHeight), "");
            BTN4th.Location = new Point(BTN2nd.Location.X, nextYPos);
            BTN4th.Click += BTN4th_Click;
            this.Controls.Add(BTN4th);

            // configures and adds the current answer count
            Label LBLCount = new MyLabel("5/6", "LBLCount");
            LBLCount.Location = new Point(this.Width / 2 - LBLCount.Width / 2, nextYPos + alligmentFromButtonsY / 2 - LBLCount.Height / 2 + BTN4th.Height);
            this.Controls.Add(LBLCount);
        }

        /// <summary>
        /// changes the game page to contain a question
        /// </summary>
        /// <param name="lst">a list which contains a question and 4 answers</param>
        private void changeQuestion(List<string> lst)
        {
            Button[] buttons = new Button[4];
            Label LBLQuestion = this.Controls.Find("LBLQuestion", false).FirstOrDefault() as Label;
            Label LBLTime = this.Controls.Find("LBLTime", false).FirstOrDefault() as Label;
            buttons[0] = this.Controls.Find("BTN1st", false).FirstOrDefault() as Button;
            buttons[1] = this.Controls.Find("BTN2nd", false).FirstOrDefault() as Button;
            buttons[2] = this.Controls.Find("BTN3rd", false).FirstOrDefault() as Button;
            buttons[3] = this.Controls.Find("BTN4th", false).FirstOrDefault() as Button;

            if(LBLTime != null)
            {
                LBLTime.BackColor = Color.Transparent;
                LBLTime.Text = this.questionTime;
            }

            if(lst.Count > 4)
            {
                if(LBLQuestion != null)
                {
                    LBLQuestion.Text = lst[0];
                    LBLQuestion.Width = TextRenderer.MeasureText(LBLQuestion.Text, LBLQuestion.Font).Width;
                    LBLQuestion.Location = new Point(this.Width / 2 - LBLQuestion.Width / 2, LBLQuestion.Location.Y);
                }

                for(int i = 1; i < 5; i++)
                {
                    buttons[i - 1].Text = lst[i];
                }
            }

            gameTimer.Start();
        }

        /// <summary>
        /// changes the form to personal status
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="args"></param>
        private void InitPersonalStatus(object sender, EventArgs args)
        {
            int reminingY = this.PBClose.Location.Y;
            int nextYPos = 0;
            int alligmentFromLabelsY = 0;

            // sets the background of the form to personal status background
            this.BackgroundImage = Properties.Resources.personalStatusBG;

            // sets the font of the form to black
            this.ForeColor = Color.Black;

            // sets the subject label
            Label LBLSubject = new MyLabel("My Performance: ", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            this.Controls.Add(LBLSubject);

            nextYPos = LBLSubject.Location.Y + LBLSubject.Height + alligmentFromSubjectY;
            reminingY -= nextYPos;

            Label LBLnumOfGames = new MyLabel("number of Games: ", "LBLnumOfGames"); // i create a label so i can know the height of it

            alligmentFromLabelsY = (reminingY - LBLnumOfGames.Height * 4) / 5;
            nextYPos += alligmentFromLabelsY;

            // configures and adds the number of games label
            LBLnumOfGames.Location = new Point(0, nextYPos); // i put 0 in x of all labels because i change it to the middle when the real text arrives from server
            this.Controls.Add(LBLnumOfGames);

            nextYPos += alligmentFromLabelsY;

            // configures and adds the number of right answers label
            Label LBLnumOfRightAns = new MyLabel("number of right answers: ", "LBLnumOfRightAns");
            LBLnumOfRightAns.Location = new Point(0, nextYPos);
            this.Controls.Add(LBLnumOfRightAns);

            nextYPos += alligmentFromLabelsY;

            // configures and adds the number of wrong answers label
            Label LBLnumOfWrongAns = new MyLabel("number of wrong answers: ", "LBLnumOfWrongAns");
            LBLnumOfWrongAns.Location = new Point(0, nextYPos);
            this.Controls.Add(LBLnumOfWrongAns);

            nextYPos += alligmentFromLabelsY;

            // configures and adds the average time per answer
            Label LBLavgTimePerAns = new MyLabel("average time for answer: ", "LBLavgTimePerAns");
            LBLavgTimePerAns.Location = new Point(0, nextYPos);
            this.Controls.Add(LBLavgTimePerAns);

            // sets the back button
            int PCHeight = this.Height / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            int PCWidth = this.Width / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            PictureBox PBBack = new MyPictureBox("PBBack", "back", new Size(PCWidth, PCHeight));
            PBBack.Location = new Point(this.Width - PCWidth, this.Height / ALLIGMENT_FROM_TOP);
            PBBack.Click += (EventHandler)CleanAllControlers;
            PBBack.Click += (EventHandler)InitMainScreen;
            this.Controls.Add(PBBack);
        }

        /// <summary>
        /// changes the labels of personal status' form, has to be be used after InitPersonalStatus function used
        /// </summary>
        /// <param name="arr">an array that contains the values of the fields example { 4, 5, 10, 3 }</param>
        private void ChangePersonalStatus(string[] arr)
        {
            if (arr.Length > 3)
            {
                Label[] labels = new Label[4];
                labels[0] = this.Controls.Find("LBLnumOfGames", false).FirstOrDefault() as Label;
                labels[1] = this.Controls.Find("LBLnumOfRightAns", false).FirstOrDefault() as Label;
                labels[2] = this.Controls.Find("LBLnumOfWrongAns", false).FirstOrDefault() as Label;
                labels[3] = this.Controls.Find("LBLavgTimePerAns", false).FirstOrDefault() as Label;

                for (int i = 0; i < 4; i++)
                {
                    if (labels[i] != null)
                    {
                        if (i == 3)
                        {
                            arr[i] = String.Format("{0}.{1}", (int.Parse(arr[i]) / 100).ToString(), (int.Parse(arr[i]) % 100).ToString());
                            Invoke((MethodInvoker)(() => labels[i].Text += arr[i]));
                        }
                        else
                        {
                            Invoke((MethodInvoker)(() => labels[i].Text += (int.Parse(arr[i])).ToString()));
                        }
                        Invoke((MethodInvoker)(() => labels[i].Width = TextRenderer.MeasureText(labels[i].Text, labels[i].Font).Width));
                        Invoke((MethodInvoker)(() => labels[i].Location = new Point(this.Width / 2 - labels[i].Width / 2, labels[i].Location.Y)));
                    }
                }
            }
        }

        /// <summary>
        /// changes the form to show the best scores
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="args"></param>
        private void InitBestScores(object sender, EventArgs args)
        {
            int reminingY = PBClose.Location.Y;
            int nextYPos = 0;
            int pictureBoxHeight = 0;
            int pictureBoxWidth = 0;
            int alligmentFromPicturesY = 0;
            int alligmentFromPictureX = 0;

            // sets the background image to best scores BG
            this.BackgroundImage = Properties.Resources.winners;

            // sets the font of the form to black
            this.ForeColor = Color.Black;

            // sets the subject label
            Label LBLSubject = new MyLabel("Best Scores: ", "LBLSubject"); // i create a label to know the width of its text
            LBLSubject.Location = new Point((this.Width / 2) - (LBLSubject.Width / 2), alligmentFromSubjectY);
            this.Controls.Add(LBLSubject);

            // creates the label that contains the first player's scores
            Label LBL1st = new MyLabel("ABCD", "LBL1st"); // i put text in the label so i can know its properties

            // sets the next position for the picture boxes sector
            nextYPos += (LBLSubject.Location.Y + LBLSubject.Height + alligmentFromSubjectY);
            reminingY -= nextYPos;

            // configures the properties of the picture boxes
            pictureBoxHeight = reminingY / BEST_SCORES_FORM_PB_HEIGHT;
            pictureBoxWidth = this.Width / BEST_SCORES_FORM_PB_WIDTH;

            // configures the picture box sector
            alligmentFromPicturesY = (reminingY - pictureBoxHeight * 2 - LBL1st.Height * 2) / 2;
            alligmentFromPictureX = (this.Width - pictureBoxWidth * 3) / 4;
            nextYPos += alligmentFromPicturesY;

            // sets the first place picture box
            PictureBox PB1st = new MyPictureBox("PB1st", "_1st", new Size(pictureBoxWidth, pictureBoxHeight));
            PB1st.Location = new Point(alligmentFromPictureX * 2 + pictureBoxWidth, nextYPos);
            this.Controls.Add(PB1st);

            LBL1st.Location = new Point(PB1st.Location.X + PB1st.Width / 2, nextYPos - LBL1st.Height);
            this.Controls.Add(LBL1st);

            // sets the postion to the next picture box
            nextYPos += alligmentFromPicturesY;

            // sets the second best score picture box
            PictureBox PB2nd = new MyPictureBox("PB2nd", "_2nd", new Size(pictureBoxWidth, pictureBoxHeight));
            PB2nd.Location = new Point(alligmentFromPictureX, nextYPos);
            this.Controls.Add(PB2nd);

            // sets the label of the second best score
            Label LBL2nd = new MyLabel("ABCD", "LBL2nd"); // i put text in the label so i can know its properties
            LBL2nd.Location = new Point(PB2nd.Location.X + PB2nd.Width / 2, PB2nd.Location.Y - LBL2nd.Height);
            this.Controls.Add(LBL2nd);

            // sets the picture box of the second best score
            PictureBox PB3rd = new MyPictureBox("PB3rd", "_3rd", new Size(pictureBoxWidth, pictureBoxHeight));
            PB3rd.Location = new Point(this.Width - alligmentFromPictureX - PB3rd.Width, nextYPos);
            this.Controls.Add(PB3rd);

            // sets the label of th ethird best score
            Label LBL3rd = new MyLabel("ABCD", "LBL3rd"); // i put text in the label so i can know its properties
            LBL3rd.Location = new Point(PB3rd.Location.X + PB3rd.Width / 2, nextYPos - LBL3rd.Height);
            this.Controls.Add(LBL3rd);

            // sets the back button
            int PCHeight = this.Height / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            int PCWidth = this.Width / SIGN_OUT_FORM_BACK_HEIGHT_WIDTH;
            PictureBox PBBack = new MyPictureBox("PBBack", "back", new Size(PCWidth, PCHeight));
            PBBack.Location = new Point(this.Width - PCWidth, this.Height / ALLIGMENT_FROM_TOP);
            PBBack.Click += (EventHandler)CleanAllControlers;
            PBBack.Click += (EventHandler)InitMainScreen;
            this.Controls.Add(PBBack);
        }

        /// <summary>
        /// changes the best scores labels
        /// should be used when clicked on get best scores button, after InitBestScores was called
        /// </summary>
        /// <param name="arr">an array of pairs in which the key is the name of the user and the value is his score</param>
        private void changeBestScores(KeyValuePair<string, string>[] arr)
        {
            Label[] labels = new Label[3];

            labels[0] = this.Controls.Find("LBL1st", false).FirstOrDefault() as Label;
            labels[1] = this.Controls.Find("LBL2nd", false).FirstOrDefault() as Label;
            labels[2] = this.Controls.Find("LBL3rd", false).FirstOrDefault() as Label;

            for (int i = 0; i < 3; i++)
            {
                if (labels[i] != null)
                {
                    labels[i].Text = arr[i].Key + ": " + arr[i].Value;
                    labels[i].Width = TextRenderer.MeasureText(labels[i].Text, labels[i].Font).Width;
                    labels[i].Location = new Point(labels[i].Location.X - labels[i].Width / 2, labels[i].Location.Y);
                }
            }
        }

        /// <summary>
        /// cleans the screen from all the controls on it
        /// </summary>
        private void CleanAllControlers(object sender, EventArgs args)
        {
            //foreach (Control c in this.Controls)
            //{
            //    MessageBox.Show(c.GetType().ToString());
            //    this.Controls.Remove(c);
            //}

            this.Controls.Clear();
            this.Controls.Add(PBClose);
        }

        private void PBClose_Click(object sender, EventArgs args)
        {
            this.Close();
        }

        private void BTNBest_Click(object sender, EventArgs args)
        {
            stream.sendData("223");
        }

        private void PBLogOut_Click(object sender, EventArgs args)
        {
            stream.sendData("201");
        }

        private void BTNPersonal_Click(object sender, EventArgs args)
        {
            stream.sendData("225");
        }

        private void BTNJoin_Click(object sender, EventArgs args)
        {
            stream.sendData("205");
        }

        private void PBRefresh_Click(object sender, EventArgs args)
        {
            stream.sendData("205");
        }

        private void BTNCreateRoom_Click(object sender, EventArgs args)
        {
            TextBox[] txtBoxes = new TextBox[3];

            TextBox TXTRoomName = this.Controls.Find("TXTRoomName", false).FirstOrDefault() as TextBox;
            txtBoxes[0] = this.Controls.Find("TXTNumOfPlayers", false).FirstOrDefault() as TextBox;
            txtBoxes[1] = this.Controls.Find("TXTNumOfQuestions", false).FirstOrDefault() as TextBox;
            txtBoxes[2] = this.Controls.Find("TXTTimePerAns", false).FirstOrDefault() as TextBox;

            // changes the room name to the wanted room name
            if (TXTRoomName != null && TXTRoomName.Text != "")
            {
                this.roomName = TXTRoomName.Text;
            }
            else
            {
                return;
            }

            // adds the properties of the new room to the roomProperties, which then will be used to initializa the inroom form
            this.roomProperties.Clear();
            foreach (TextBox t in txtBoxes)
            {
                if (t != null && t.Text != "")
                {
                    this.roomProperties.Add(t.Text);
                }
                else
                {
                    this.roomName = "";
                    return;
                }
            }

            stream.sendData(String.Format("213{0:00}{1}{2}{3:00}{4:00}", this.roomName.Length, this.roomName, roomProperties[0], int.Parse(roomProperties[1]), int.Parse(roomProperties[2])));
        }

        private void PBJoin_Click(object sender, EventArgs args)
        {
            ListBox LBRooms = this.Controls.Find("LBRooms", false).FirstOrDefault() as ListBox;

            if (LBRooms.SelectedIndex >= 0 && int.Parse(roomsID[LBRooms.SelectedIndex]) >= 0)
            {
                this.roomName = LBRooms.Items[LBRooms.SelectedIndex] as string;
                this.stream.sendData("209" + this.roomsID[LBRooms.SelectedIndex]);
            }
        }

        private void LBRooms_SelectedIndexChanged(object sender, System.EventArgs e)
        {
            ListBox LBRooms = this.Controls.Find("LBRooms", false).FirstOrDefault() as ListBox;

            if (int.Parse(this.roomsID[LBRooms.SelectedIndex]) >= 0)
            {
                this.stream.sendData("207" + this.roomsID[LBRooms.SelectedIndex]);
            }
        }

        /// <summary>
        /// sends the username, password and email to server according to the format for sign up
        /// </summary>
        private void PBSign_Up_Click(object sender, EventArgs args)
        {
            TextBox txtUserName = (TextBox)this.Controls.Find("TXTusername", false).FirstOrDefault();
            TextBox txtPassword = (TextBox)this.Controls.Find("TXTpsw", false).FirstOrDefault();
            TextBox txtEmail = (TextBox)this.Controls.Find("TXTemail", false).FirstOrDefault();

            if (txtUserName != null && txtPassword != null && txtEmail != null)
            {
                this.stream.sendData(String.Format("203{0:00}{1}{2:00}{3}{4:00}{5}", txtUserName.Text.Length, txtUserName.Text, txtPassword.Text.Length, txtPassword.Text, txtEmail.Text.Length, txtEmail.Text));
            }
        }

        /// <summary>
        /// sends the username and password to server according to the format for sign in
        /// </summary>
        private void PBSign_In_Click(object sender, EventArgs e)
        {
            TextBox txtUserName = (TextBox)this.Controls.Find("TXTusername", false).FirstOrDefault();
            TextBox txtPassword = (TextBox)this.Controls.Find("TXTpsw", false).FirstOrDefault();

            if (txtUserName != null && txtPassword != null)
            {
                this.stream.sendData(String.Format("200{0:00}{1}{2:00}{3}", txtUserName.Text.Length, txtUserName.Text, txtPassword.Text.Length, txtPassword.Text));
            }
        }

        private void BTN1st_Click(object sender, EventArgs args)
        {
            this.buttonAnswer = "BTN1st";
            this.BTNCliclk(1);
        }

        private void BTN2nd_Click(object sender, EventArgs args)
        {
            this.buttonAnswer = "BTN2nd";
            this.BTNCliclk(2);
        }

        private void BTN3rd_Click(object sender, EventArgs args)
        {
            this.buttonAnswer = "BTN3rd";
            this.BTNCliclk(3);
        }

        private void BTN4th_Click(object sender, EventArgs args)
        {
            this.buttonAnswer = "BTN4th";
            this.BTNCliclk(4);
        }

        private void BTNCliclk(int answerNo)
        {
            this.gameTimer.Stop();

            Label time = this.Controls.Find("LBLTime", false).FirstOrDefault() as Label;

            stream.sendData(string.Format("219{0}{1:00}", answerNo, int.Parse(this.questionTime) - int.Parse(time.Text)));
        }

        private void BTNLeave_Click(object sender, EventArgs args)
        {
            stream.sendData("211");
        }

        private void BTNLeaveGame_Click(object sender, EventArgs args)
        {
            this.gameTimer.Stop();

            Invoke((MethodInvoker)(() => CleanAllControlers(null, EventArgs.Empty)));
            Invoke((MethodInvoker)(() => InitMainScreen(null, EventArgs.Empty)));
            Invoke((MethodInvoker)(() => this.PBClose.Visible = true));

            stream.sendData("222");
        }

        private void BTNCloseRoom_Click(object sender, EventArgs args)
        {
            stream.sendData("215");
        }

        private void BTNStartGame_Click(object sender, EventArgs args)
        {
            stream.sendData("217");
        }

        /// <summary>
        /// handles the messags from server
        /// </summary>
        private void handleMessage()
        {
            string msg = "";

            while (true)
            {
                msg = this.stream.recvData(); // the message from the server

                switch (int.Parse(msg.Substring(0, 3)))
                {
                    case 102:
                        this.HandleSignIn(msg.Substring(3, 4)); // in case of sign in
                        break;
                    case 104:
                        this.HandleSignUp(msg.Substring(3, 4)); // in case of sign up
                        break;
                    case 124:
                        this.HandleBestScores(msg.Substring(3)); // in case of best scores
                        break;
                    case 126:
                        this.HandlePersonalStatus(msg.Substring(3)); // in case of personal status
                        break;
                    case 106:
                        this.HandleGetRooms(msg.Substring(3)); // in case of get rooms
                        break;
                    case 108:
                        this.HandleGetUsers(msg.Substring(3)); // in case of get users
                        break;
                    case 110:
                        this.HandleJoinRoon(msg.Substring(3)); // in case of join room
                        break;
                    case 112:
                        this.HandleLeaveRoom(msg.Substring(3, 1)); // in case of leave room
                        break;
                    case 116:
                        this.HandleCloseRoom(); // in case of close room
                        break;
                    case 118:
                        this.HandleStartGame(msg.Substring(3)); // in case of start game
                        break;
                    case 114:
                        this.handleCreateRoom(msg.Substring(3, 1)); // in case of create room
                        break;
                    case 120:
                        this.HandleAnswer(msg.Substring(3, 1)); // in case of gets answer
                        break;
                    case 121:
                        this.HandleFinishGame(msg.Substring(3)); // in case of finish game
                        break;
                }
            }
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.t.Abort();

            if(this.gameTimer.Enabled)
            {
                this.gameTimer.Stop();
                this.gameTimer.Dispose();
            }

            this.stream.sendData("299");
            this.stream.CloseStream();
            this.PBClose.Dispose();
        }

        /// <summary>
        /// handles sign in request
        /// </summary>
        /// <param name="msg"> the message from the server </param>
        private void HandleSignIn(string msg)
        {
            switch (int.Parse(msg))
            {
                case 0:
                    uid = ((TextBox)this.Controls.Find("TXTusername", false).FirstOrDefault()).Text; // to show his username in main screen
                    Invoke((MethodInvoker)(() => CleanAllControlers(null, EventArgs.Empty)));
                    Invoke((MethodInvoker)(() => InitMainScreen(null, EventArgs.Empty)));
                    break;
                case 1:
                    MessageBox.Show("Wrong Details");
                    break;
                case 2:
                    MessageBox.Show("User is already connected");
                    break;
            }
        }

        /// <summary>
        /// handles sign up request
        /// </summary>
        /// <param name="msg"> message from the server </param>
        private void HandleSignUp(string msg)
        {
            switch (int.Parse(msg))
            {
                case 0:
                    Invoke((MethodInvoker)(() => CleanAllControlers(null, EventArgs.Empty)));
                    Invoke((MethodInvoker)(() => this.InitLoginScreen(null, EventArgs.Empty)));
                    break;
                case 1:
                    MessageBox.Show("Pass illegal");
                    break;
                case 2:
                    MessageBox.Show("Username is already exists");
                    break;
                case 3:
                    MessageBox.Show("Username is illegal");
                    break;
                case 4:
                    MessageBox.Show("Other");
                    break;
            }
        }

        /// <summary>
        /// handles best scores request
        /// </summary>
        /// <param name="msg"> message from the server </param>
        private void HandleBestScores(string msg)
        {
            List<string> elem = new List<string>();

            int[] arr = new int[6] { 2, -6, 2, -6, 2, -6 };

            Helper.convertBytes(arr, elem, msg);

            KeyValuePair<string, string>[] arrPairs = new KeyValuePair<string, string>[3];

            if (elem.Count > 5)
            {
                for (int i = 0; i < 3; i++)
                {
                    // arrPpairs is array of pairs that key is the name of the user and the value is his score
                    arrPairs[i] = new KeyValuePair<string, string>(elem[i * 2], (int.Parse(elem[i * 2 + 1])).ToString());
                }
            }

            Invoke((MethodInvoker)(() => this.changeBestScores(arrPairs)));
        }

        /// <summary>
        /// handles personal status request
        /// </summary>
        /// <param name="msg"> message from the server </param>
        private void HandlePersonalStatus(string msg)
        {
            List<string> elem = new List<string>();

            int[] arr = new int[4] { -4, -6, -6, -4 };

            Helper.convertBytes(arr, elem, msg);

            this.ChangePersonalStatus(elem.ToArray());
        }

        /// <summary>
        /// handle get rooms
        /// </summary>
        /// <param name="msg"> the message from the server </param>
        private void HandleGetRooms(string msg)
        {
            List<string> elem = new List<string>();

            int numberOfRooms = int.Parse(msg.Substring(0, 4));

            int[] arr = new int[numberOfRooms * 2]; // because there are 2 parameters of each room (id and name)

            for (int i = 0; i < numberOfRooms; i++)
            {
                arr[i * 2] = -4;
                arr[i * 2 + 1] = 2;
            }

            Helper.convertBytes(arr, elem, msg.Substring(4));

            roomsID.Clear();
            for (int i = 0; i < elem.Count; i += 2)
            {
                /*  the variable elem consists of id and name, for exemple {5, Room1, 5, Room2} that is why i only added to
                 *  the variable roomsID only the items in even places and remove them for the variable elem becase the
                 *  function how get the variable elem needs only the names
                 */
                this.roomsID.Add(elem[i]);
                elem.RemoveAt(i);
            }

            Invoke((MethodInvoker)(() => this.changeRoomsList(elem)));
        }

        /// <summary>
        /// handle get users
        /// </summary>
        /// <param name="msg"> the message from the server</param>
        private void HandleGetUsers(string msg)
        {
            if (msg == "0") // in case of the game already start
            {
                MessageBox.Show("The game already start, please refresh");
                return;
            }

            List<string> elem = new List<string>();

            int numberOfUsers = int.Parse(msg.Substring(0, 1));

            int[] arr = new int[numberOfUsers];

            for (int i = 0; i < numberOfUsers; i++)
            {
                arr[i] = 2;
            }

            Helper.convertBytes(arr, elem, msg.Substring(1));

            /* the can be called from choosing room and inside room that why the condition (the if)
             * if the condition != null its mean that we are inside room and we souhld call the function ChangeLBpart
             * else mean that we are chossing room and we should call function changeUsersInRoom
             */

            if (this.Controls.Find("LBLparticipates", false).FirstOrDefault() as Label != null)
            {
                Invoke((MethodInvoker)(() => this.ChangeLBpart(elem)));
            }
            else
            {
                Invoke((MethodInvoker)(() => this.changeUsersInRoom(elem)));
            }
        }

        /// <summary>
        /// handle join room
        /// </summary>
        /// <param name="msg"> the message from the server</param>
        private void HandleJoinRoon(string msg)
        {
            if (msg.Substring(0, 1) == "0") // in case of succses
            {
                Invoke((MethodInvoker)(() => this.CleanAllControlers(null, EventArgs.Empty)));
                // i create new button so i can identify whether the page should be admin or user presentation
                Invoke((MethodInvoker)(() => this.InitInsideRoom(new PictureBox(), EventArgs.Empty)));

                List<string> elem = new List<string>();

                int[] arr = new int[2] { -2, -2 };

                Helper.convertBytes(arr, elem, msg.Substring(1));

                Invoke((MethodInvoker)(() => this.ChangeLabels(elem)));
            }
            else if (msg.Substring(0, 1) == "1") // in case of full room
            {
                MessageBox.Show("failed - room is full");
            }
            else // in case of room not exist or other reason
            {
                MessageBox.Show("failed - room not exist or other reason");
            }
        }

        /// <summary>
        /// handle leave room by clean all the controlers in the form and call InitMainScreen
        /// </summary>
        /// <param name="msg"> the message from the server</param>
        private void HandleLeaveRoom(string msg)
        {
            if (msg == "0")
            {
                this.roomName = ""; // delete the name of room
                Invoke((MethodInvoker)(() => CleanAllControlers(null, EventArgs.Empty)));
                Invoke((MethodInvoker)(() => InitMainScreen(null, EventArgs.Empty)));
                Invoke((MethodInvoker)(() => this.PBClose.Visible = true));  // turns on the close picture box
            }
        }

        /// <summary>
        /// handle close room by clean all the controlers in the form and call InitMainScreen
        /// </summary>
        private void HandleCloseRoom()
        {
            Button BTNCloseRoom = this.Controls.Find("BTNCloseRoom", false).FirstOrDefault() as Button;

            if(BTNCloseRoom == null)
            {
                MessageBox.Show("The admin close the room");
            }

            this.roomName = ""; // delete the name of room
            Invoke((MethodInvoker)(() => CleanAllControlers(null, EventArgs.Empty)));
            Invoke((MethodInvoker)(() => InitMainScreen(null, EventArgs.Empty)));
            Invoke((MethodInvoker)(() => this.PBClose.Visible = true)); // turns on the close picture box
        }

        /// <summary>
        /// handle create room
        /// </summary>
        /// <param name="msg"> the message from the server </param>
        private void handleCreateRoom(string msg)
        {
            if (msg == "0")
            {
                Invoke((MethodInvoker)(() => CleanAllControlers(null, EventArgs.Empty)));
                Invoke((MethodInvoker)(() => InitInsideRoom(new Button(), EventArgs.Empty)));
                Invoke((MethodInvoker)(() => ChangeLabels(this.roomProperties)));
                Invoke((MethodInvoker)(() => ChangeLBpart(new List<string> { uid }))); // adds the current user to the users list
            }
            else
            {
                MessageBox.Show("Could not open the room");
            }
        }

        /// <summary>
        /// handle start game
        /// </summary>
        /// <param name="msg"> the message from the server </param>
        private void HandleStartGame(string msg)
        {
            if (msg == "0")
            {
                MessageBox.Show("An error occurred");
            }
            else
            {
                this.roomName = "";

                List<string> elem = new List<string>();

                int[] arr = new int[5] { 3, 3, 3, 3, 3 };

                Helper.convertBytes(arr, elem, msg);

                Invoke((MethodInvoker)(() => this.CleanAllControlers(null, EventArgs.Empty)));
                Invoke((MethodInvoker)(() => this.InitGameScreen(null, EventArgs.Empty)));
                Invoke((MethodInvoker)(() => this.changeQuestion(elem)));
            }
        }

        /// <summary>
        /// handle answer from the user
        /// </summary>
        /// <param name="msg"> the message from the server </param>
        private void HandleAnswer(string msg)
        {
            Button btnAnswer = this.Controls.Find(this.buttonAnswer, false).FirstOrDefault() as Button; // gets the button
                                                                                                        // which i press on
            if (msg == "0") // in case of wrong answer
            {
                btnAnswer.BackColor = Color.Red;
            }
            else
            {
                btnAnswer.BackColor = Color.LightGreen;
            }
        }

        /// <summary>
        /// handle finish game
        /// </summary>
        /// <param name="msg"> the message from the server </param>
        private void HandleFinishGame(string msg)
        {
            string scores = "";
            string line = "";

            List<string> elem = new List<string>();

            int numberOfUsers = int.Parse(msg.Substring(0, 1));

            int[] arr = new int[numberOfUsers * 2];

            for (int i = 0; i < numberOfUsers; i++)
            {
                arr[i * 2] = 2;
                arr[i * 2 + 1] = -2;
            }

            Helper.convertBytes(arr, elem, msg.Substring(1));

            for (int i = 0; i < elem.Count / 2; i+=2 )
            {
                line = "Name : " + elem[i] + ", " + "Score : " + elem[i + 1] + "\n";
                scores += line;
            }

            MessageBox.Show(scores);

            Invoke((MethodInvoker)(() => this.CleanAllControlers(null, EventArgs.Empty)));
            Invoke((MethodInvoker)(() => this.InitMainScreen(null, EventArgs.Empty)));
            Invoke((MethodInvoker)(() => this.PBClose.Visible = true));
        }
    }
}

// TODO:
// set font according to resulution
// remove the size of the Close button from the login and signup pages