// Event handling method for the "Reset" button
public void ResetButtonClicked(object source, EventArgs e)
{
// stop the timer.
gameTimer.Stop();
// Reset the time, location, and velocity of ball;
basketball.S = 0.0; // time
basketball.SetQ(0.0, 0); // vx0
basketball.SetQ(1.0, 1); // x0
basketball.SetQ(0.0, 2); // vy0
basketball.SetQ(0.0, 3); // y0
basketball.SetQ(0.0, 4); // vz0
basketball.SetQ(2.25, 5); // z0
shotMade = false;
// Update the display.
UpdateDisplay();
}
// Event handling method for the "Reset" button
public void ResetButtonClicked(object source, EventArgs e)
{
// stop the timer.
gameTimer.Stop();
// Reset the time, location, and velocity of ball;
golfball.S = 0.0; // time
golfball.SetQ(0.0, 0); // vx0
golfball.SetQ(0.0, 1); // x0
golfball.SetQ(0.0, 2); // vy0
golfball.SetQ(0.0, 3); // y0
golfball.SetQ(0.0, 4); // vz0
golfball.SetQ(0.0, 5); // z0
// Reset the distance to hole.
distanceToHole = Convert.ToDouble(distanceTextBox.Text);
// Update the display.
UpdateDisplay();
}
public FreeThrow()
{
// Create a DragProjectile object to represent the soccer ball.
basketball =
new DragProjectile(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.62, 0.0452, 1.2, 0.5);
basketball.SetQ(1.0, 1); // x0
basketball.SetQ(2.25, 5); // z0
// The shot is missed until it is made
shotMade = false;
// Set up images
playerIcon = Image.FromFile("basketball_player.gif");
playerWidth = playerIcon.Width;
playerHeight = playerIcon.Height;
ballIcon = Image.FromFile("Basketball.jpg");
// Create a Timer object that will be used
// to slow the action down.
gameTimer = new Timer();
gameTimer.Interval = 20; // delay in milliseconds.
gameTimer.Tick += new EventHandler(ActionPerformed);
// Create some Labels
velocityLabel = new Label();
velocityLabel.Text = "Initial velocity (m/s)";
velocityLabel.Font = new Font(velocityLabel.Font, FontStyle.Bold);
velocityLabel.Top = 20;
velocityLabel.Left = 10;
velocityLabel.Width = 120;
angleLabel = new Label();
angleLabel.Text = "Shot angle (deg)";
angleLabel.Font = new Font(angleLabel.Font, FontStyle.Bold);
angleLabel.Top = 50;
angleLabel.Left = 10;
angleLabel.Width = 120;
// Create TextBox objects to display the inputs.
velocityTextBox = new TextBox();
velocityTextBox.Width = 50;
velocityTextBox.Text = "7.5";
velocityTextBox.AutoSize = true;
velocityTextBox.Top = velocityLabel.Top;
velocityTextBox.Left = 140;
angleTextBox = new TextBox();
angleTextBox.Width = 50;
angleTextBox.Text = "40.0";
angleTextBox.AutoSize = true;
angleTextBox.Top = angleLabel.Top;
angleTextBox.Left = 140;
// Create Button objects
int buttonHeight = 30;
int buttonWidth = 50;
int buttonLeft = 20;
fireButton = new Button();
fireButton.Text = "Fire";
fireButton.Height = buttonHeight;
fireButton.Width = buttonWidth;
fireButton.Top = 80;
fireButton.Left = buttonLeft;
fireButton.Click += new EventHandler(FireButtonClicked);
resetButton = new Button();
resetButton.Text = "Reset";
resetButton.Height = buttonHeight;
resetButton.Width = buttonWidth;
resetButton.Top = 130;
resetButton.Left = buttonLeft;
resetButton.Click += new EventHandler(ResetButtonClicked);
// Create a drawing panel.
drawingPanel = new Panel();
drawingPanel.Width = 301;
drawingPanel.Height = 251;
drawingPanel.Left = 300;
drawingPanel.Top = 20;
drawingPanel.BorderStyle = BorderStyle.FixedSingle;
// Add the GUI components to the Form
this.Controls.Add(velocityLabel);
this.Controls.Add(angleLabel);
this.Controls.Add(velocityTextBox);
this.Controls.Add(angleTextBox);
this.Controls.Add(fireButton);
this.Controls.Add(resetButton);
this.Controls.Add(drawingPanel);
// Set the size and title of the form
this.Width = 650;
this.Height = 400;
this.Text = "Free Throw";
// Center the form on the screen and make
// it visible.
this.StartPosition = FormStartPosition.CenterScreen;
this.Visible = true;
// Update the GUI display
UpdateDisplay();
}