private void CreateAsteroids(Random rnd)
{
if (rnd.Next(0, 50) == 3)
{
var newAst = new Asteroid();
newAst.picture = Content.Load<Texture2D>("Asteroide");
newAst.placeHolder = newAst.picture.Bounds;
newAst.placeHolder.X = 750;
newAst.placeHolder.Y = rnd.Next(0, 500);
asteroids.Add(newAst);
}
}
private void Timer_Tick(object sender, EventArgs e)
{
// create and add asteroid every tickInterval ticks
if (tickCount % tickInterval == 0)
{
Asteroid asteroid = asteroidFactory.CreateAsteroid();
asteroids.Add(asteroid);
Controls.Add(asteroid.Sprite);
}
// asteroids
for (int i = asteroids.Count - 1; i >= 0; i--)
{
// both players died
if (player1.Lives == 0 && player2.Lives == 0)
{
numberOfLivesLabel1.Text = "Game over, press enter to restart...";
Controls.Add(numberOfLivesLabel1);
timer.Enabled = false;
break;
}
asteroids[i].Move();
// collision with player 1
if (asteroids[i].Sprite.Bounds.IntersectsWith(player1.Sprite.Bounds) && player1.Lives != 0)
{
if (player1.Lives > 1)
{
// clear objects on screen
for (int j = asteroids.Count - 1; j >= 0; j--)
{
Controls.Remove(asteroids[j].Sprite); // clear all asteroids images
}
Controls.Remove(numberOfLivesLabel); // clear Number of Lives Label
Controls.Remove(scoreLabel); // clear Score label
Controls.Remove(player1.Sprite); // clear Player 1
asteroids.Clear(); // clear asteroid objects
player1.Lives--; // reduce Player 1 live
player1.Reposition(this.Width, this.Height, 1); // reposition Player 1
numberOfLivesLabel.Text = String.Format("Lives = {0}", player1.Lives);
Controls.Add(numberOfLivesLabel);
Controls.Add(scoreLabel);
Controls.Add(player1.Sprite);
break;
}
else
{
for (int j = asteroids.Count - 1; j >= 0; j--)
{
Controls.Remove(asteroids[j].Sprite);
}
Controls.Remove(numberOfLivesLabel);
Controls.Remove(scoreLabel);
Controls.Remove(player1.Sprite);
asteroids.Clear();
player1.Lives--;
break;
}
}
// collision with player 2
if (asteroids[i].Sprite.Bounds.IntersectsWith(player2.Sprite.Bounds) && player2.Lives != 0)
{
if (player2.Lives > 1)
{
for (int j = asteroids.Count - 1; j >= 0; j--)
{
Controls.Remove(asteroids[j].Sprite);
}
Controls.Remove(numberOfLivesLabel1);
Controls.Remove(scoreLabel1);
Controls.Remove(player2.Sprite);
asteroids.Clear();
player2.Lives--;
player2.Reposition(this.Width, this.Height, 2);
numberOfLivesLabel1.Text = String.Format("Lives = {0}", player2.Lives);
Controls.Add(numberOfLivesLabel1);
Controls.Add(scoreLabel1);
Controls.Add(player2.Sprite);
break;
}
else
{
for (int j = asteroids.Count - 1; j >= 0; j--)
{
Controls.Remove(asteroids[j].Sprite);
}
Controls.Remove(numberOfLivesLabel1);
Controls.Remove(scoreLabel1);
Controls.Remove(player2.Sprite);
asteroids.Clear();
player2.Lives--;
break;
}
}
// remove asteroids once out of screen
if (asteroids[i].IsOutOfScreen(this.Height))
{
Controls.Remove(asteroids[i].Sprite);
asteroids.RemoveAt(i);
}
}
// missles
for (int j = missles.Count - 1; j >= 0; j--)
{
missles[j].Move();
// remove missle once out of screen
if (missles[j].IsOutOfScreen())
{
Controls.Remove(missles[j].Sprite);
missles.RemoveAt(j);
}
}
// check if missle collides with asteroid
for (int i = asteroids.Count - 1; i >= 0; i--)
{
for (int j = missles.Count - 1; j >= 0; j--)
{
if (i > asteroids.Count - 1 || j > missles.Count - 1)
{
break;
}
if (asteroids[i].Sprite.Bounds.IntersectsWith(missles[j].Sprite.Bounds))
{
if (missles[j].PlayerNo == 1)
{
scoreLabel.Text = String.Format("Score = {0:D2}", ++player1.Score);
}
else
{
scoreLabel1.Text = String.Format("Score = {0:D2}", ++player2.Score);
}
Controls.Remove(missles[j].Sprite);
missles.RemoveAt(j);
Controls.Remove(asteroids[i].Sprite);
asteroids.RemoveAt(i);
}
}
}
tickCount++;
}