// Click event handler method to exit slot machine form
        // and go to display winnings form. player object's score is total score.
        private void btnCashOut_Click(object sender, EventArgs e)
        {
            GlobalsClass.playerObject.setScore(totalScore);
            Form frmDisplayWinnings = new Forms.frmDisplayFinalWinnings();

            frmDisplayWinnings.Show();
            this.Hide();
        }
        // Click event handler method for the spin button. Uses the spin method.
        // Go and get the calculation of the winnings from calculate reels method.
        // Check for jackpot. Add winnings to score. Display score in text box.
        // Check for 0. If neither then player won. Add winnings to total.
        // Display Score and winnings in the text boxes.
        // Let user play until they have 0 coins.
        private void btnSpin_Click(object sender, EventArgs e)
        {
            //spinNoise.Play();
            if (currentBet <= totalScore)
            {
                btnSpin.BackColor = Color.SteelBlue;
                spin();

                winnings = calculateReelCombos();

                txtWinnings.Text = winnings.ToString();

                // Show form Display Winnings for winnings.
                // pass in the winnings.
                if (winnings > 0)
                {
                    frmDisplayWinnings frmRef = new frmDisplayWinnings(txtWinnings.Text);
                    frmRef.Show();
                    totalScore     += winnings;
                    txtBalance.Text = totalScore.ToString();
                }
                else if (winnings == 0)
                {
                    frmDisplayWinnings frmRef = new frmDisplayWinnings(txtWinnings.Text);
                    frmRef.Show();
                    totalScore     -= currentBet;
                    txtBalance.Text = totalScore.ToString();
                    if (totalScore <= 0)
                    {
                        frmRef.Hide();
                    }
                }

                if (totalScore <= 0)
                {
                    youFailed();

                    Form frmDisplayWinnings = new Forms.frmDisplayFinalWinnings();
                    frmDisplayWinnings.Show();
                    this.Hide();
                }
            }
            else
            {
                MessageBox.Show("You don't have the coins for that bet...", "Error");
            }
        }