Esempio n. 1
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 /***********************************
  * Author: Angelo M Sanches
  * makes a new resized canvas to draw to
  *************************************/
 private void Bu_ReSize_Click(object sender, EventArgs e)
 {
     DrawCheck.Enabled = false;
     Drawer.Close();
     Drawer            = new CDrawer(Scale * trackBar1.Value, Scale * trackBar1.Value, false);
     Drawer.Scale      = Scale;
     DrawLife          = new Form1.Life[trackBar1.Value, trackBar1.Value];
     DrawCheck.Enabled = true;
 }
Esempio n. 2
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 private void FormMain_Load(object sender, EventArgs e)
 {
     if (_ThreadGameLoop != null)
     {
         _ThreadGameLoop.Abort();
         _Canvas.Close();
     }
     //Launch thread
     _ThreadGameLoop = new Thread(GameLoop);
     _ThreadGameLoop.Start();
     timerMouseClicks.Start();
 }
Esempio n. 3
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        static void RandomBlocks()
        {
            Random  rnd = new Random();
            CDrawer can = new CDrawer();

            System.Diagnostics.Stopwatch watch = new System.Diagnostics.Stopwatch();
            watch.Reset();
            watch.Start();
            can.AddText("Random Known Colors SetBBPixel : 2s", 28, 0, 0, can.ScaledWidth, can.ScaledHeight, Color.White);
            can.AddText("Random Known Colors SetBBPixel : 2s", 28, 2, 2, can.ScaledWidth + 2, can.ScaledHeight + 2, Color.Black);
            while (watch.ElapsedMilliseconds < 2000)
            {
                can.SetBBPixel(rnd.Next(can.ScaledWidth), rnd.Next(can.ScaledHeight), RandColor.GetKnownColor());
            }
            can.Close();

            can       = new CDrawer(800, 800);
            can.Scale = 10;
            Console.WriteLine("Random Known Colors SetBBScaledPixel : 2s");
            watch.Reset();
            watch.Start();
            can.AddText("Random Known Colors SetBBScaledPixel : 2s", 24);
            while (watch.ElapsedMilliseconds < 2000)
            {
                can.SetBBScaledPixel(rnd.Next(can.ScaledWidth), rnd.Next(can.ScaledHeight), RandColor.GetKnownColor());
            }
            can.Close();
        }
Esempio n. 4
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        internal void Restart()
        {
            _Canvas.Close();
            _Canvas = null;
            _Embers.Clear();
            _EmbersToRemove.Clear();


            _Canvas = new CDrawer(MAXSIZE, MAXSIZE, false);
            Generate(1500);
            Display();
        }
Esempio n. 5
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        /// <summary>
        /// on click with set number of lines wanting to test
        /// simulate a queue system
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void simulateBtn_Click(object sender, EventArgs e)
        {
            //clear running flag
            _running = false;

            //use any() with a lambda to perform sleep(10) in a loop
            //until all queues are empty(signal that threads r terminated)
            while (Qsheep.Any(Qs => Qs.Count > 0) || StackSheep.Count > 0)
            {
                Thread.Sleep(10);
            }

            //Clear your list and stats.
            Qsheep.Clear();
            count = 0;

            //close exsisting drawer and allocate new one
            if (CDrawer != null)
            {
                CDrawer.Close();
            }

            CDrawer          = new CDrawer(800, (int)howManyUpDown1.Value * scale, false);
            CDrawer.Position = new Point(this.Width, this.Height - 124);
            //CDrawer.Scale = scale;

            for (count = 0; count < MAXSHEEP; count++)
            {
                StackSheep.Push(new sheeple());
            }

            for (count = 0; count < howManyUpDown1.Value; count++)
            {
                Qsheep.Add(new Queue <sheeple>());
            }

            _running = true;//enable run bool

            //create and start a Thread, passing the thread its processing Queue from our list
            //(it doesn't need to see any other Queues)
            foreach (Queue <sheeple> item in Qsheep)
            {
                Thread newTH = new Thread(() => QProcess(item));
                newTH.IsBackground = true;
                newTH.Start();
            }
        }
Esempio n. 6
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        static void Background()
        {
            Console.WriteLine("Resource Picture");
            Bitmap  bm = new Bitmap(Properties.Resources.jupiter);
            CDrawer dr = new CDrawer(bm.Width, bm.Height);

            dr.ContinuousUpdate = false;
            dr.SetBBPixel(bm.Width / 2, bm.Height / 2, Color.Wheat);

            for (int y = 0; y < bm.Height; ++y)
            {
                for (int x = 0; x < bm.Width; ++x)
                {
                    dr.SetBBPixel(x, y, bm.GetPixel(x, y));
                }
            }
            dr.Render();
            System.Threading.Thread.Sleep(1000);
            dr.Close();
        }
Esempio n. 7
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 private void UI_Sim_Butt_Click(object sender, EventArgs e)
 {
     mySheeple.Clear();
     queue.Clear();
     for (int i = 0; i < UI_NumUpDown.Value; i++)
     {
         queue.Add(new Queue <Sheeple>());
     }
     if (canvas != null)
     {
         canvas.Close();
     }
     canvas       = new CDrawer(800, 20 * (int)UI_NumUpDown.Value);
     canvas.Scale = 20;
     totalNum     = 0;
     tickNum      = 0;
     for (int i = 0; i < 200; i++)
     {
         mySheeple.Push(new Sheeple());
     }
 }
Esempio n. 8
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        /*If the Load button is clicked then, the maze is loaded on the
         * screen*/
        private void buttonLoadMaze_Click(object sender, EventArgs e)
        {
            Bitmap bm = new Bitmap(500, 600);

            //Create a new OpenFileDialog(not on the form * ) then setting :
            System.Windows.Forms.OpenFileDialog ofd = new System.Windows.Forms.OpenFileDialog();

            // the initial directory to the current directory and up 2 levels ( ..\ )
            string directory = Path.GetFullPath(Path.Combine(System.IO.Directory.GetParent(Environment.CurrentDirectory).ToString(), @"..\..\"));

            ofd.InitialDirectory = directory;

            //set the title bar to “Load Bitmap maze to solve”
            this.Text = "Load Bitmap maze to solve";

            // filter to show two groups, Bitmaps, and All Files
            ofd.Filter = "BMP|*.bmp";
            ofd.Filter = "BMP|*.bmp|" + "All Files|*.bmp";

            if (ofd.ShowDialog() == DialogResult.OK)
            {
                StreamReader sr = null;

                //perform error checking in opening the picture file
                try
                {
                    //read from the file
                    sr = new StreamReader(ofd.FileName);
                    //Utilizing the Bitmap load file snippet in the CDrawer manual,
                    //attempt to load the bitmap
                    bm = new Bitmap(ofd.FileName);

                    /* include 2 catches, one for a load failure ( as illustrated in the bitmap load snippet )
                     * //and an additional generic Exception catch for your width/height constraint,
                     * //both should display a Message box indicating the specified error
                     * */
                    //If the bitmap width exceeds 190 or height exceeds 100  throw a new Exception()
                    //with the message “Bitmap size exceeds displayable area” ( caught later )

                    /*  if (bm.Height > 100 || bm.Width > 190)
                     * {
                     *    throw new System.ArgumentException("Bitmap size exceeds displayable area", "(caught later)");
                     *    MessageBox.Show("Bitmap size exceeds displayable area", "Error !", MessageBoxButtons.OK);
                     * }
                     */

                    //set the member maximum column and row to their respective
                    //bitmap width and height values
                    MazeInfo_struct.height = bm.Height;
                    MazeInfo_struct.width  = bm.Width;
                }
                //if the operation is not sucessful throw an error
                catch (Exception message)
                {
                    MessageBox.Show("Error opening the file: ", "Error !", MessageBoxButtons.OK);
                }
                finally
                {
                    //close the file
                    sr.Close();
                }

                //If your current Drawer object is not null, Close() it, we are done,
                //and need a new one for the new maze.
                if (canvas != null)
                {
                    canvas.Close();
                }

                this.Text = ofd.FileName;

                //call the function to draw the image
                CreateCanvas(bm, this.Text);
            }
        }
Esempio n. 9
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        /// <summary>
        /// When the load button is pressed loading the bitmap into the cdrawer and parcing the information that we need to solve the map
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void UI_btn_Load_Click(object sender, EventArgs e)
        {
            //variable that represents the current scale factor on the maze
            int mapScaling = 10;

            //initalizing a file dialog to hand
            OpenFileDialog openFileDialog1 = new OpenFileDialog();

            //customizing the filters in the dialog to only show .bmp or all files
            openFileDialog1.Filter = "All files(*.*)|*.*|bmp files (*.bmp)|*.bmp";
            //setting the inital directory
            openFileDialog1.InitialDirectory = Path.GetFullPath(Environment.CurrentDirectory + @"\..\..");

            //opening the file dialog and if the ok button is pressed
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                try
                {
                    if (_canvas != null)//trying to close a canvas if the canvas is not null
                    {
                        _canvas.Close();
                    }

                    //importing the new bitmap from the file dialog
                    Bitmap bm = new Bitmap(openFileDialog1.FileName);
                    //if the bit map is a medium sized  bit map setting the scaling appropriately
                    if (bm.Width > 150 || bm.Height > 100)
                    {
                        //throw new Exception("Bitmap Exceeds Size Requirements");
                        mapScaling = 5;
                    }
                    //if the bit map is larger reducing the scaling to make it fit the screen
                    if (bm.Width > 200 || bm.Height > 150)
                    {
                        mapScaling = 2;
                    }
                    //creating a new enum array set to the width and height of the bitmap
                    mazeArray = new state[bm.Width, bm.Height];
                    //creating a new canvas set to the height and width of the bitmap scaled with continuous update off, pixel scale set to the scaling and a background of white
                    _canvas = new CDrawer(bm.Width * mapScaling, bm.Height * mapScaling, false, false)
                    {
                        Scale = mapScaling, BBColour = Color.White
                    };
                    //moving the canvas to be right next to the form
                    _canvas.Position = new Point(Location.X + Width, Location.Y);

                    //moving through the bit maps x and y coords
                    for (int y = 0; y < bm.Height; ++y)
                    {
                        for (int x = 0; x < bm.Width; ++x)
                        {
                            //getting the color of the current pixel
                            _canvas.SetBBScaledPixel(x, y, bm.GetPixel(x, y));
                            if (bm.GetPixel(x, y) == Color.FromArgb(0, 0, 0))//if its black setting it to a wall state in the enum array
                            {
                                mazeArray[x, y] = state.wall;
                            }
                            if (bm.GetPixel(x, y) == Color.FromArgb(255, 255, 255))//if its white setting it to open state in the array
                            {
                                mazeArray[x, y] = state.open;
                            }
                            if (bm.GetPixel(x, y) == Color.FromArgb(255, 0, 0))//if its red setting that pixel as the maze exit
                            {
                                _maze._mEnd = new Point(x, y);
                            }
                            if (bm.GetPixel(x, y) == Color.FromArgb(0, 255, 0))//if its green setting that pixel as the maze entrance
                            {
                                _maze._mStart = new Point(x, y);
                            }
                        }
                    }
                    //rendering the canvas
                    _canvas.Render();
                    //setting the name of the form to the file name
                    Text = Path.GetFileName(openFileDialog1.FileName);
                    //displaying that the file has been loaded to the user with the dimensions
                    UI_LB_MessageViewer.Items.Insert(0, $"Loaded: {Path.GetFileName(openFileDialog1.FileName)} file Dimensions {bm.Width} X {bm.Height}");
                    //saving the file name for later use
                    _file = Path.GetFileName(openFileDialog1.FileName).ToString();

                    //initialing the maze info struct
                    _maze._xWidth  = bm.Width;                //setting the maze width
                    _maze._yHeight = bm.Height;               //setting the maze height
                    _maze._cSol    = UI_BTN_SColor.BackColor; //setting the color of the solution path
                    _maze._cDed    = UI_btn_DColor.BackColor; //setting the color of the visited path
                    _maze._steps   = 0;                       //initializing the step counter
                    _maze._solved  = false;                   //setting solved to false
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message); //catching exceptions during the loading process
                }
                UI_btn_Solve.Enabled = true;     //enabling the solve button
            }
        }
Esempio n. 10
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        static void Main(string[] args)
        {
            //variables
            string  choice = "";
            CDrawer sky    = new CDrawer(1, 1);
            int     height = 0;
            int     width  = 0;

            bool[,] stars = new bool[0, 0];
            int numberOfStars = 0;

            //title
            Console.WriteLine("\t\tStarry Night\n");
            sky.Close();

            //inputs
            do
            {
                Console.Write("Please choose one of the following:\nM - Make a New Sky\nA - Add Stars\nR - Remove All Stars\nD - Draw Sky\nX - Exit\nYour Choice: ");
                choice = Console.ReadLine().ToUpper();

                switch (choice)
                {
                case ("M"):
                    sky    = MakeSky();
                    height = sky.m_ciHeight;
                    width  = sky.m_ciWidth;
                    break;

                case ("A"):
                    if (width * height == 0)
                    {
                        Console.Clear();
                        Console.WriteLine("\t\tYou haven't drawn a sky yet, do that first please\n");
                    }
                    else
                    {
                        stars         = MakeStars(width, height);
                        numberOfStars = AddStars(stars, (width * height));
                    }
                    break;

                case ("R"):
                    RemoveStars(stars);
                    break;

                case ("D"):
                    if (width * height == 0)
                    {
                        Console.Clear();
                        Console.WriteLine("\t\tYou haven't drawn a sky yet, do that first please\n");
                    }
                    else
                    {
                        DrawSky(sky, stars);
                    }
                    break;

                case ("X"):
                    continue;

                default:
                    Console.Clear();
                    Console.WriteLine("You have entered an invalid choice, try again\n");
                    break;
                }
            } while (choice != "X");
        }
Esempio n. 11
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        //occurs evertime a key is pressed
        private void Pressed_KeyDown(object sender, KeyEventArgs e)
        {
            // if x is pressed and released program closes
            if (e.KeyCode == Keys.X)
            {
                this.Close();
                _canvas.Close();
            }

            // if up draw shpe 1 posistion up
            if (e.KeyCode == Keys.Up)
            {
                _YPOS -= _shapePos;
                drawStuff();
                range();
            }

            // if down draw shpe 1 posistion down
            else if (e.KeyCode == Keys.Down)
            {
                _YPOS += _shapePos;
                drawStuff();
                range();
            }

            // if left draw shpe 1 posistion left
            else if (e.KeyCode == Keys.Left)
            {
                _XPOS -= _shapePos;
                drawStuff();
                range();
            }

            // if right draw shpe 1 posistion right
            else if (e.KeyCode == Keys.Right)
            {
                _XPOS += _shapePos;
                drawStuff();
                range();
            }

            // move in arrow diretion 2 posistions
            if (e.Shift)
            {
                // 2 pos inted of 1
                _shapePos = 2;
            }

            // move in arrow diretion 3 posistions
            if (e.Control)
            {
                // 3 pos insted of 1
                _shapePos = 3;
            }

            // move in arrow diretion 4 posistions
            if (e.Alt)
            {
                // 4 pos insted of 1
                _shapePos = 4;
            }

            // if R is pressed set color to red
            if (e.KeyCode == Keys.R)
            {
                _color = Color.Red;
            }

            // if G is pressed set color to green
            if (e.KeyCode == Keys.G)
            {
                _color = Color.Green;
            }

            // if B is pressed set color to blue
            if (e.KeyCode == Keys.B)
            {
                _color = Color.Blue;
            }

            // draw border around shape
            if (e.KeyCode == Keys.F1)
            {
                _border = 1;
            }

            // reset to original shape distance
            if (e.KeyCode == Keys.Z)
            {
                _shapePos = 2;
            }
        }
Esempio n. 12
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        //Occurs everytime the 'Load' button is pressed. Attempts to open a bitmap file onto the canvas
        //Side-Effect: sets the maze's information while scanning the bitmap
        private void BtnLoad_Click(object sender, EventArgs e)
        {
            int  x, y;        //position of the pixels on bitmap
            bool good = true; //used to see if the file we are trying to open is valid

            OpenFileDialog openFile = new OpenFileDialog();
            string         path     = Path.GetFullPath(Environment.CurrentDirectory + @"\..\..\mazes");

            //initial settings for the open file dialog
            openFile.InitialDirectory = path;
            openFile.Title            = "Load Bitmap maze to solve";
            openFile.Filter           = "Bitmaps (*.bmp)|*.bmp|All files (*.*)|*.*";

            Bitmap map = null;

            _mazeDets = new MazeInfo
            {
                livePath = Color.Orange,
                deadPath = Color.Gray
            };

            //checked to see if the file was able to open
            try
            {
                //user chooses a file to open
                if (openFile.ShowDialog() == DialogResult.OK)
                {
                    //loads the bitmap file
                    map = new Bitmap(openFile.FileName);

                    //checks the valid size(x, y) of the bitmap file
                    try
                    {//sets the scale as an attempt to fit the bitmap onto the canvas
                        if (map.Height * map.Width < 10000)
                        {
                            _scale = 10;
                        }
                        else if (map.Height * map.Width < 20000)
                        {
                            _scale = 8;
                        }
                        else if (map.Height * map.Width < 150000)
                        {
                            _scale = 3;
                        }
                        else if (map.Height * map.Width < 450000)
                        {
                            _scale = 2;
                        }
                        else if (map.Height * map.Width < 1260000)
                        {
                            _scale = 1;
                        }
                        else
                        {
                            throw new Exception();
                        }
                    }

                    //error message for the bitmap file that is too big
                    catch (Exception)
                    {
                        MessageBox.Show("Bitmap size exceeds displayable area", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        good = false;
                    }
                }

                //user decided to close the open file dialog
                else
                {
                    good = false;
                }
            }

            //error message when the file chosen could not be opened
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                good = false;
            }

            if (good)
            {
                //creates a 2D array of enumeration to set the state of the pixel (open, wall, visited)
                _state = new Wall[map.Height + 1, map.Width + 1];
                _mazeDets.mazeHeight = map.Height;
                _mazeDets.mazeWidth  = map.Width;

                if (_canvas != null)
                {
                    _canvas.Close();
                }

                //new canvas with appropriately adjusted size
                _canvas = new CDrawer(map.Width * _scale, map.Height * _scale, false)
                {
                    Scale    = _scale,
                    BBColour = Color.White
                };

                //loads the scaled pixels from bitmap onto CDrawer canvas
                //depending on the colour of the pixel, decide the state and put it in 2D Enum array
                for (y = 0; y < map.Height; y++)
                {
                    for (x = 0; x < map.Width; x++)
                    {
                        //black pixel found? It's a wall
                        if (map.GetPixel(x, y) == Color.FromArgb(255, 0, 0, 0))
                        {
                            _state[y, x] = Wall.wall;
                        }

                        //white pixel found? It's an open path
                        else if (map.GetPixel(x, y) == Color.FromArgb(255, 255, 255))
                        {
                            _state[y, x] = Wall.open;
                        }

                        //finds position of start of the maze (green pixel)
                        if (map.GetPixel(x, y) == Color.FromArgb(0, 255, 0))
                        {
                            _mazeDets.startPos.X = x;
                            _mazeDets.startPos.Y = y;
                        }

                        //finds the position of end of the maze (red pixel)
                        if (map.GetPixel(x, y) == Color.FromArgb(255, 0, 0))
                        {
                            _mazeDets.endPos.X = x;
                            _mazeDets.endPos.Y = y;
                        }

                        _canvas.SetBBScaledPixel(x, y, map.GetPixel(x, y));
                    }
                }
                //sets the postion of the canvas so it loads right next to the form
                _canvas.Position = new Point(Location.X + Size.Width + 10, Location.Y);
                _canvas.Render();
                btnSolve.Enabled = true;
                listMazeLog.Items.Insert(0, $"Loaded: {Path.GetFileName(openFile.FileName)}");
            }
        }
Esempio n. 13
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 /***********************************
  * Author: Angelo M Sanches
  * simple wrap alga. keeps it in bounds set by min / max
  *************************************/
 // this is a form closing to make sure that the other form closes too since interceped normaly and all;
 private void Form1_FormClosing(object sender, FormClosingEventArgs e)
 {
     SpeedSelector.CanClose = true;
     SpeedSelector.Close();
     Box.Close();
 }
Esempio n. 14
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        static void ClickEllipses()
        {
            Random  rnd = new Random();
            CDrawer can = new CDrawer();

            System.Diagnostics.Stopwatch watch = new System.Diagnostics.Stopwatch();
            watch.Reset();
            watch.Start();
            can.AddText("Random Bounding Box Ellipses : 2s", 28, 0, 0, can.ScaledWidth, can.ScaledHeight, Color.White);
            can.AddText("Random Bounding Box Ellipses : 2s", 28, 2, 2, can.ScaledWidth + 2, can.ScaledHeight + 2, Color.Black);
            while (watch.ElapsedMilliseconds < 5000)
            {
                Point p = new Point(rnd.Next(-50, can.ScaledWidth + 50), rnd.Next(-50, can.ScaledHeight - 50));
                switch (rnd.Next(6))
                {
                case 0:
                    can.AddEllipse(p.X, p.Y, 100, 100);
                    break;

                case 1:
                    can.AddEllipse(p.X, p.Y, 100, 100, RandColor.GetKnownColor(), rnd.Next(1, 4), RandColor.GetKnownColor());
                    break;

                case 2:
                    can.AddPolygon(p.X, p.Y, 100, rnd.Next(3, 8));
                    break;

                case 3:
                    can.AddPolygon(p.X, p.Y, 100, rnd.Next(3, 8), rnd.NextDouble() * Math.PI, RandColor.GetKnownColor(), 2, RandColor.GetKnownColor());
                    break;

                case 4:
                    can.AddRectangle(p.X, p.Y, 100, 100);
                    break;

                case 5:
                    can.AddRectangle(p.X, p.Y, 100, 100, RandColor.GetKnownColor(), rnd.Next(1, 4), RandColor.GetKnownColor());
                    break;

                default:
                    break;
                }
                System.Threading.Thread.Sleep(100);
            }
            can.Close();

            can = new CDrawer(1000, 400, false);
            //System.Diagnostics.Stopwatch watch = new System.Diagnostics.Stopwatch();
            watch.Reset();
            watch.Start();
            can.AddText("Random Bounding Box Ellipses : 2s", 28, 0, 0, can.ScaledWidth, can.ScaledHeight, Color.White);
            can.AddText("Random Bounding Box Ellipses : 2s", 28, 2, 2, can.ScaledWidth + 2, can.ScaledHeight + 2, Color.Black);
            while (watch.ElapsedMilliseconds < 2000)
            {
                Point p = new Point(rnd.Next(50, can.ScaledWidth - 50), rnd.Next(50, can.ScaledHeight - 50));
                can.AddCenteredEllipse(p.X, p.Y, 100, 100, RandColor.GetKnownColor(), 2, Color.White);
                can.AddCenteredEllipse(p.X, p.Y, 5, 5, RandColor.GetKnownColor(), 1, Color.Red);
                System.Threading.Thread.Sleep(100);
            }
            can.Render();
            System.Threading.Thread.Sleep(1000);
            can.Close();
        }
Esempio n. 15
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        static void Main(string[] args)
        {
            string choice = "";                     //input from user on what action they'd like to take

            int[]   grades = new int[0];            //the array that will hold all the randomly generated grades
            CDrawer gdi;                            //the drawing window for displaying the histogram
            bool    error = false;                  //used to confirm if an array has been created or not

            //repeats program and menu options until letter q is pressed
            do
            {
                //title
                Console.WriteLine("\t\tLab4 - Array of Marks\n");
                Console.WriteLine("Actions available...\n");

                //options and input from user
                Console.Write("1. Create random array.\n2. Array stats.\n3. Draw histogram.\n4. Save array to file.");
                Console.Write("\n5. Load array from file.\nq. Exit the program.\n\nYour selection: ");
                choice = Console.ReadLine().ToLower();

                switch (choice)
                {
                //creates array with as large as the user desires, fills with random grade values then displays it
                case ("1"):
                    grades = GetArray();
                    DisplayArray(grades);
                    Refresh();
                    break;

                //sorts array then displays some simple stats about it
                case ("2"):
                    if (error = ArrayCheck(grades))
                    {
                        break;
                    }
                    Array.Sort(grades);
                    DisplayArray(grades);
                    Console.WriteLine("\nThe minimum value is {0}", grades.Min());
                    Console.WriteLine("The average value is {0}", grades.Average());
                    Console.WriteLine("The maximum value is {0}", grades.Max());
                    Refresh();
                    break;

                //creates histogram based on the array
                case ("3"):
                    if (error = ArrayCheck(grades))
                    {
                        break;
                    }
                    gdi = new CDrawer(800, 600, false);
                    DrawHistogram(gdi, grades);
                    Refresh();
                    gdi.Close();
                    break;

                //stores the array as a file
                case ("4"):
                    if (error = ArrayCheck(grades))
                    {
                        break;
                    }
                    SaveFile(grades);
                    Refresh();
                    break;

                //loads a file, designed only to work with the file save formatting of the SafeFile() method
                case ("5"):
                    LoadFile();
                    Refresh();
                    break;

                case ("q"):
                    continue;

                default:
                    Console.Clear();
                    Console.WriteLine("\tYou have entered an invalid option\n");
                    break;
                }
            } while (choice != "q");
        }