private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
Graphics g = e.Graphics;
g.Clear(Color.Black);
if (!bStarted)
{
String drawString = "Asteroids";
// Create font and brush.
Font drawFont = new Font("Verdana", 48);
SolidBrush drawBrush = new SolidBrush(Color.Red);
PointF drawPoint = new PointF(this.ClientRectangle.Width / 4, this.ClientRectangle.Height - iTextHolder);
// Draw string to screen.
e.Graphics.DrawString(drawString, drawFont, drawBrush, drawPoint);
drawString = "AURORA";
// Create font and brush.
drawFont = new Font("TIMES NEW ROMAN", 14);
drawBrush = new SolidBrush(Color.White);
drawPoint = new PointF(this.ClientRectangle.Width / 4, this.ClientRectangle.Height - (iTextHolder - 90));
// Draw string to screen.
e.Graphics.DrawString(drawString, drawFont, drawBrush, drawPoint);
if (iTextHolder > this.ClientRectangle.Height + 25)
{
iTextHolder = 25;
}
else
{
iTextHolder = iTextHolder + 5;
}
return;
}
Bullet[] BulletArray = TheShip.BulletArray;
// Move Ship
if (TheShip.Active)
{
TheShip.Move();
// check ship is not out of bounds
TheShip.InRectangle(this.ClientRectangle);
}
// Move Bullets
for (int i = 0; i < BulletArray.Length; i++)
{
// check if bullet is still in scope
if (BulletArray[i] != null)
{
if (BulletArray[i].Active)
{
BulletArray[i].Move();
// trim or reposition bullets
if (BulletArray[i].InRectangle(this.ClientRectangle))
{
BulletArray[i].Active = false;
}
// test ship & bullet collision
if (TheShip.Active)
{
if (BulletArray[i].IntersectsWith(TheShip.GetBounds(), TheShip.ShipImage))
{
BulletArray[i].Active = false;
TheShip.Active = false;
}
}
}
}
}
// Move Asteroids
foreach (Asteroid A in AsteroidList)
{
A.Move();
A.InRectangle(this.ClientRectangle);
}
// check for collisions
for (int j = 0; j < AsteroidList.Count; j++)
{
Asteroid A = (Asteroid)AsteroidList[j];
// if exploding nothing to do
if (A.Exploding == false)
{
// with bullets
for (int i = 0; i < BulletArray.Length; i++)
{
if (BulletArray[i] != null)
{
if (BulletArray[i].Active)
{
if (BulletArray[i].IntersectsWith(A.GetBounds(), A.AsteroidImage))
{
A.Exploding = true;
spawnMoreAsteroids(A);
BulletArray[i].Active = false;
}
}
}
}
// with ship
if (TheShip.Active)
{
if (TheShip.IntersectsWith(A.GetBounds(), A.AsteroidImage))
{
A.Exploding = true;
spawnMoreAsteroids(A);
TheShip.Active = false;
}
}
}
}
// trim any inactive asteroids
for (int i = 0; i < AsteroidList.Count; i++)
{
Asteroid A = (Asteroid)AsteroidList[i];
if (A.Active)
{
A.Draw(g);
}
else
{
AsteroidList.RemoveAt(i);
}
}
for (int i = 0; i < BulletArray.Length; i++)
{
if (BulletArray[i] != null)
{
if (BulletArray[i].Active)
{
BulletArray[i].Draw(g);
}
}
}
if (TheShip.Active)
{
TheShip.DrawShip(g);
}
}