//button event handler for the four button
        private void btnEVENT_Click(object sender, EventArgs e)
        {
            Round_Button button = sender as Round_Button;

            if (button != null)
            {
                // now you know the button that was clicked
                switch ((int)button.Tag)
                {
                case 0:
                    // First Button Clicked
                    M1Count++;
                    if (M1Count == 8)
                    {
                        M1Count = 0;
                    }
                    button.BackColor = clrArray[M1Count];
                    Marble1          = clrChar[M1Count];
                    break;

                case 1:
                    // Second Button Clicked
                    M2Count++;
                    if (M2Count == 8)
                    {
                        M2Count = 0;
                    }
                    button.BackColor = clrArray[M2Count];
                    Marble2          = clrChar[M2Count];
                    break;

                case 2:
                    //third button clicked
                    M3Count++;
                    if (M3Count == 8)
                    {
                        M3Count = 0;
                    }
                    button.BackColor = clrArray[M3Count];
                    Marble3          = clrChar[M3Count];
                    break;

                case 3:
                    //fourth button clicked
                    M4Count++;
                    if (M4Count == 8)
                    {
                        M4Count = 0;
                    }
                    button.BackColor = clrArray[M4Count];
                    Marble4          = clrChar[M4Count];
                    break;
                }
            }
        }
        // dynamically creating a hard level board design when user hits hard button
        private void btnHard_Click(object sender, EventArgs e)
        {
            L.startTimer();
            Mode          = "Hard";
            currentButton = 0;
            currentPin    = 0;
            for (int r = 0; r < 8; r++)
            {
                //Create One Row of Round color Buttons
                for (int i = 0; i < 4; i++)
                {
                    Round_Button button = new Round_Button();
                    button.Location = new Point(15 + (80 * i), 5 + (65 * r));
                    button.Size     = new Size(50, 50);
                    //sets buttons borderless appearance
                    button.TabStop   = false;
                    button.FlatStyle = FlatStyle.Flat;
                    button.FlatAppearance.BorderSize = 0;
                    button.BackColor = Color.DarkGray;
                    //sets the event of color buttons to the color event handler!
                    button.Click += new EventHandler(btnEVENT_Click);
                    //give button a tag switching which event handler path it takes depends on which column
                    button.Tag = i;
                    if (r != 0)
                    {
                        button.Visible = false;
                    }
                    button.Name = "btn" + Convert.ToString(currentButton);
                    currentButton++;
                    this.Controls.Add(button);
                }
                //Create 4 Pin Buttons
                for (int i = 0; i < 4; i++)
                {
                    Round_Button button = new Round_Button();
                    button.Location  = new Point(325 + (30 * i), 10 + (70 * r));
                    button.Size      = new Size(20, 20);
                    button.TabStop   = false;
                    button.FlatStyle = FlatStyle.Flat;
                    button.FlatAppearance.BorderSize = 0;
                    button.Enabled = false;
                    button.Visible = false;

                    button.Name = "pin" + Convert.ToString(currentPin);
                    currentPin++;
                    this.Controls.Add(button);
                }
            }
            currentPin        = 0;
            btnEasy.Enabled   = false;
            btnMedium.Enabled = false;
            btnHard.Enabled   = false;
        }