C# spil

CSharp kode 

 class Stats
     {
        public int Total = 0;
        public int Missed = 0;
        public int Correct = 0;
        public int Accuracy = 0;
 
        public void Update(bool correctKey)
        {
            Total++;
 
            if (!correctKey)
            {
                Missed++;
            }
            else
            {
                Correct++;
            }
 
            Accuracy = 100 * Correct / (Missed + Correct);
 
 
        }

CSharp kode 

 public partial class Form1 : Form
     {
         Random random = new Random();
         Stats stats = new Stats();
 
 
         public Form1()
         {
             InitializeComponent();
         }
 
         private void timer1_Tick(object sender, EventArgs e)
         {
             listBox1.Items.Add((Keys)random.Next(65, 90));
             if (listBox1.Items.Count > 7)
             {
                 listBox1.Items.Clear();
                 listBox1.Items.Add("Game over");
                 timer1.Stop();
             }
         }
 
         private void Form1_KeyDown(object sender, KeyEventArgs e)
         {
             if (listBox1.Items.Contains(e.KeyCode))
             {
                 listBox1.Items.Remove(e.KeyCode);
                 listBox1.Refresh();
                 if (timer1.Interval > 400)
                     timer1.Interval -= 10;
                 if (timer1.Interval > 250)
                     timer1.Interval -= 7;
                 if (timer1.Interval > 100)
                     timer1.Interval -= 2;
                 difficultyProgressBar.Value = 800 - timer1.Interval;
                 stats.Update(true);
 
             }
             else 
             {
                 stats.Update(false);
             }
 
             correctLabel.Text = "Correct:" + stats.Correct;
             missedLabel.Text = "Missed:" + stats.Missed;
             totalLabel.Text = "Total:" + stats.Total;
             accuracyLabel.Text = "Accuracy:" + stats.Accuracy + "%";
         }