//make the player
private void Player()
{
int width = this.ClientSize.Width;
int height = this.ClientSize.Height;
player = new ActiveSprite(width / 2 - 30, height - height / 96, Image.FromFile("images\\Ship.png"), 60, 32, 0, 0);
}
//spawn the aliens
private void Aliens()
{
int width = this.ClientSize.Width;
int height = this.ClientSize.Height;
int numAliens = 0;
int row = 1;
float alienX = width / 192;
float alienY = height / 108;
ActiveSprite alien;
while (numAliens < 11 && row <= 5)
{
if (row == 1)
{
alien = new ActiveSprite(alienX, alienY, Image.FromFile("images\\InvaderC" + one + ".png"), 48, 32, 3, 0);
}
else if (row == 2 || row == 3)
{
alien = new ActiveSprite(alienX, alienY, Image.FromFile("images\\InvaderB" + one + ".png"), 48, 32, 3, 0);
}
else if (row == 4 || row == 5)
{
alien = new ActiveSprite(alienX, alienY, Image.FromFile("images\\InvaderA" + one + ".png"), 48, 32, 3, 0);
}
else
{
alien = new ActiveSprite(alienX, alienY, Image.FromFile("images\\InvaderC1.png"), 48, 32, 0, 0);
}
aliens.Add(alien);
alienX += width / 192 + 48;
numAliens++;
if (numAliens >= 11)
{
alienY += 32 + height / 108;
alienX = width / 192;
row++;
numAliens = 0;
}
}
}
private void T_Tick(object sender, EventArgs e)
{
counter++;
this.Refresh();
if (aliens.Count == 0)
{
won = true;
}
for (int i = 0; i < bullets.Count; i++)
{
//remove off screen bullets
if (bullets.ElementAt(i).Y + bullets.ElementAt(i).Height < 0)
{
bullets.Remove(bullets.ElementAt(i));
continue;
}
//remove shot aliens
for (int j = 0; j < aliens.Count; j++)
{
if (aliens.ElementAt(j).Contains(bullets.ElementAt(i).X, bullets.ElementAt(i).Y))
{
aliens.Remove(aliens.ElementAt(j));
bullets.ElementAt(i).Y = -bullets.ElementAt(i).Height;
continue;
}
}
}
for (int i = 0; i < aliens.Count; i++)
{
//let the aliens shoot back
if (rand.NextDouble() > 0.999)
{
ActiveSprite alienBullet = new ActiveSprite(aliens.ElementAt(i).X + 21, aliens.ElementAt(i).Y - aliens.ElementAt(i).Height - 17, Image.FromFile("images\\bullet.png"), 6, 17, 0, 15);
alienBullets.Add(alienBullet);
}
}
//clear the alien shots
for (int i = 0; i < alienBullets.Count; i++)
{
if (alienBullets.ElementAt(i).Y > ClientSize.Height)
{
alienBullets.Remove(alienBullets.ElementAt(i));
continue;
}
if (player.Contains(alienBullets.ElementAt(i).X, alienBullets.ElementAt(i).Y))
{
lost = true;
}
}
//check the blocks for shots
for (int i = 0; i < blocks.Count; i++)
{
for (int j = 0; j < bullets.Count(); j++)
{
if (blocks.ElementAt(i).Contains(bullets.ElementAt(j).X, bullets.ElementAt(j).X))
{
bullets.ElementAt(i).Y = -bullets.ElementAt(i).Height;
continue;
}
}
for (int j = 0; j < alienBullets.Count; j++)
{
if (blocks.ElementAt(i).Contains(alienBullets.ElementAt(j).X, alienBullets.ElementAt(j).Y))
{
alienBullets.Remove(alienBullets.ElementAt(j));
continue;
}
}
}
//change alien skins
if (counter % 33 == 0)
{
for (int i = 0; i < aliens.Count; i++)
{
if (counter % 2 == 1 && i < 55)
{
aliens.ElementAt(i).Image = Image.FromFile("images\\InvaderA" + two + ".png");
}
if (counter % 2 == 0 && i < 55)
{
aliens.ElementAt(i).Image = Image.FromFile("images\\InvaderA" + one + ".png");
}
if (counter % 2 == 1 && i < 33)
{
aliens.ElementAt(i).Image = Image.FromFile("images\\InvaderB" + two + ".png");
}
if (counter % 2 == 0 && i < 33)
{
aliens.ElementAt(i).Image = Image.FromFile("images\\InvaderB" + one + ".png");
}
if (counter % 2 == 1 && i < 11)
{
aliens.ElementAt(i).Image = Image.FromFile("images\\InvaderC" + two + ".png");
}
if (counter % 2 == 0 && i < 11)
{
aliens.ElementAt(i).Image = Image.FromFile("images\\InvaderC" + one + ".png");
}
}
}
}
//let the player fight
private void Engine_PlayerShoot(object sender, MouseEventArgs e)
{
ActiveSprite bullet = new ActiveSprite(player.X + 27, player.Y - 17, Image.FromFile("images\\bullet.png"), 6, 17, 0, -15);
bullets.Add(bullet);
}