protected void Updateball(System.Object sender, ElapsedEventArgs evt)
{
real_coord_x = real_coord_x + ball_horizontal_delta;
real_coord_y = real_coord_y - vertical_delta;
init_coord_x = (int)System.Math.Round(real_coord_x);
init_coord_y = (int)System.Math.Round(real_coord_y);
if (init_coord_x <= (0)) // if ball hits left "goal post"
{
System.Console.WriteLine("Right Player gets a point!");
contact = true;
rightplayerscore = rightplayerscore + 1; // if Left Player can't hit ball, then Right Player gets a point
}
// player hits right goal post
else if (init_coord_x >= formwidth)
{
System.Console.WriteLine("Left Player gets a point!");
leftplayerscore = leftplayerscore + 1;
contact = true;
}
// ball has either hit top or gone above "top". NOTE THAT VALUE IS LOW
else if (init_coord_y <= titlebottom)
{
vertical_delta = -vertical_delta;
}
// ball has either hit bottom or gone past "bottom".
else if (init_coord_y + 2 * ball_radius >= ground)
{
vertical_delta = -vertical_delta;
}
// ball has hit left paddle:
else if (init_coord_x >= 0 && init_coord_x <= (left_paddle_x + paddlelength) &&
init_coord_y >= left_paddle_y && init_coord_y <= (left_paddle_y + paddlewidth))
{
ball_horizontal_delta = -ball_horizontal_delta;
}
// ball has hit right paddle:
else if (init_coord_x >= right_paddle_x && init_coord_x <= (right_paddle_x + paddlelength) &&
init_coord_y >= right_paddle_y && init_coord_y <= (right_paddle_y + paddlewidth))
{
ball_horizontal_delta = -ball_horizontal_delta;
}
// If Ball hits the the goal post and there are still some remaining balls left..Continue.
if (contact == true && (leftplayerscore + rightplayerscore) < 5)
{
contact = false;
System.Console.WriteLine("Generating new random posiion...Done.");
// new random direction for generated ball
algorithms = new algorithmlogic();
ball_angle_radians = algorithms.get_random_direction();
degrees = ball_angle_radians * 180.0 / System.Math.PI;
while ((degrees > 80 && degrees < 100) || (degrees > 260 && degrees < 280) || (degrees < -80 && degrees > -100))
{
algorithms = new algorithmlogic();
ball_angle_radians = algorithms.get_random_direction();
degrees = ball_angle_radians * 180.0 / System.Math.PI;
}
ball_horizontal_delta = distance_moved_per_refresh * System.Math.Cos(ball_angle_radians);
vertical_delta = distance_moved_per_refresh * System.Math.Sin(ball_angle_radians);
// new coordinates ( ball goes back to center )
init_coord_y = (ground - titlebottom) / 2;
init_coord_x = formwidth / 2;
real_coord_y = (ground - titlebottom) / 2;
real_coord_x = formwidth / 2;
distance_moved_per_refresh = distance_moved_per_refresh + 1.1;
control_clock.Enabled = true;
graphic_area_refresh_clock.Enabled = true;
}
// GAME OVER. Ran out of balls
if (leftplayerscore + rightplayerscore == 5)
{
control_clock.Enabled = false;
System.Console.WriteLine("The game has ended.");
if (leftplayerscore > rightplayerscore)
{
System.Console.WriteLine("Left player has won!");
}
else
{
System.Console.WriteLine("Right player has won!");
}
System.Console.WriteLine("You can start a new game if you'd like, but that would erase your previous score" + "\n" + "If you wish to continue, press the New Game button");
}
} //End of method Updateball
public Paddleframe() // Class Constructor
// Set the form
{
Text = "Pong Game";
System.Console.WriteLine("formwidth = {0}. formheight = {1}.", formwidth, formheight);
Size = new Size(formwidth, formheight);
BackColor = background_color;
// GENERATES RANDOM LOCATION FOR BALL
init_coord_x = (int)(real_coord_x);
init_coord_y = (int)(real_coord_y);
// Random Direction
ball_angle_radians = algorithms.get_random_direction();
degrees = ball_angle_radians * 180.0 / System.Math.PI;
// if degrees > 80 && degrees < 90 && degrees > 260 && degrees < 280 ) get a new a direction.
while (degrees > 80 && degrees < 100 || degrees > 260 && degrees < 280 || (degrees < -80 && degrees > -100))
{
algorithms = new algorithmlogic();
ball_angle_radians = algorithms.get_random_direction();
degrees = ball_angle_radians * 180.0 / System.Math.PI;
}
ball_horizontal_delta = distance_moved_per_refresh * System.Math.Cos(ball_angle_radians);
vertical_delta = distance_moved_per_refresh * System.Math.Sin(ball_angle_radians);
System.Console.WriteLine("Direction of ball: {0} Degrees, {1} Radians",
Round(degrees, 2), Round(ball_angle_radians, 2));
// Set clocks
graphic_area_refresh_clock.Enabled = false;
graphic_area_refresh_clock.Elapsed += new ElapsedEventHandler(Updatedisplay);
control_clock.Enabled = false; //Initially the clock controlling the ball is stopped.
control_clock.Elapsed += new ElapsedEventHandler(Updateball);
Startgraphicclock(graphicrefreshrate);
//refreshrate is how many times per second the display area is re-painted.
Startclock(update_rate);
//Make buttons visible
Controls.Add(top_bar);
Controls.Add(newgame);
Controls.Add(gamestate);
Controls.Add(exit);
Controls.Add(leftscore_text);
Controls.Add(leftscore_number);
Controls.Add(speed_text);
Controls.Add(speed_number);
Controls.Add(rightscore_number);
Controls.Add(rightscore_text);
//Initialize buttons
newgame.Click += new EventHandler(startgame);
gamestate.Click += new EventHandler(gamestatus);
exit.Click += new EventHandler(terminate);
//Initialize paddle (near) the center of the form.
left_paddle_x = paddlelength / 2;
left_paddle_y = (ground - titlebottom) / 2;
right_paddle_x = formwidth - (2 * paddlelength);
right_paddle_y = (ground - titlebottom) / 2;
KeyPreview = true;
KeyUp += new KeyEventHandler(OnKeyUp);
DoubleBuffered = true;
} //End of constructor
