//
// Pong Emulator Using GDI Demonstration
// Developed by AceInfinity
// Copyright (c) Tech.Reboot.Pro
//
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
class PongEmulator : PictureBox
{
private Rectangle rect1;
private Rectangle rect2;
private Rectangle ball;
private int vertical = 5;
private BallDirection ballDirectionY = BallDirection.Up;
private BallDirection ballDirectionX = BallDirection.Left;
private enum BallDirection { Left = 0, Right, Up, Down }
#region Constructor
public PongEmulator()
{
rect1 = new Rectangle(Point.Empty, new Size(5, 20));
rect2 = new Rectangle(new Point(this.Width - 5, 0), new Size(5, 20));
ball = new Rectangle(new Point(this.Width / 2 - 3, this.Height / 2 - 3), new Size(5, 5));
Start();
}
#endregion Constructor
public void Start()
{
T.Tick -= T_Tick;
T.Tick += T_Tick;
T.Interval = 1;
T.Start();
}
public void Stop()
{
T.Tick -= T_Tick;
T.Stop();
}
#region Timer Animation
private Timer T = new Timer();
private static Random R = new Random();
private void T_Tick(object sender, EventArgs e)
{
switch (ballDirectionX)
{
case BallDirection.Left:
ball.Location = new Point(ball.X - 2, ball.Y + vertical);
rect1.Location = new Point(rect1.X, ball.Y - rect1.Height / 2);
break;
case BallDirection.Right:
ball.Location = new Point(ball.X + 2, ball.Y + vertical);
rect2.Location = new Point(rect2.X, ball.Y - rect2.Height / 2);
break;
}
if (ball.IntersectsWith(rect1) || ball.IntersectsWith(rect2))
{
ballDirectionX = (BallDirection)(((int)ballDirectionX + 1) % 2);
}
if (ball.Y < 0)
{
ball.Y = 0;
ballDirectionY = BallDirection.Down;
vertical = R.Next(-3, 3);
if (vertical == 0) vertical = 1;
}
else if (ball.Y > this.Height - 5)
{
ball.Y = this.Height - 5;
ballDirectionY = BallDirection.Up;
vertical = R.Next(-3, 3);
if (vertical == 0) vertical = -1;
}
Invalidate();
}
#endregion Timer Animation
#region Overrides
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.Clear(Color.FromArgb(15, 15, 15));
using (HatchBrush HB = new HatchBrush(HatchStyle.Cross, Color.FromArgb(20, 20, 20)))
{
e.Graphics.FillRectangle(HB, this.ClientRectangle);
}
SolidBrush SB = new SolidBrush(Color.FromArgb(0, 255, 150));
// Draw bar borders
Pen P = new Pen(SB);
e.Graphics.DrawRectangles(P, new Rectangle[] { rect1, rect2 });
// Draw ball border
P = new Pen(Color.FromArgb(255, 50, 0));
e.Graphics.DrawRectangle(P, ball);
// Fill bar rectangles
SB = new SolidBrush(Color.FromArgb(0, 100, 45));
e.Graphics.FillRectangles(SB, new Rectangle[] {
Rectangle.FromLTRB(rect1.Left + 1, rect1.Top + 1, rect1.Right, rect1.Bottom),
Rectangle.FromLTRB(rect2.Left + 1, rect2.Top + 1, rect2.Right, rect2.Bottom)
});
// Fill ball rectangle
SB = new SolidBrush(Color.FromArgb(100, 15, 0));
e.Graphics.FillRectangle(SB, Rectangle.FromLTRB(ball.Left + 1, ball.Top + 1, ball.Right, ball.Bottom));
P.Dispose();
SB.Dispose();
}
protected override void OnResize(EventArgs e)
{
base.OnResize(e);
rect1 = new Rectangle(Point.Empty, new Size(5, 20));
rect2 = new Rectangle(new Point(this.Width - 5, 0), new Size(5, 20));
ball = new Rectangle(new Point(this.Width / 2 - 3, this.Height / 2 - 3), new Size(5, 5));
}
#endregion Overrides
}
