protected override void Update(GameTime gameTime)
{
KeyMouseReader.Update();
if (!gameOverSound && gameOver)
{
MediaPlayer.Stop();
MediaPlayer.IsRepeating = false;
MediaPlayer.Play(gameOver_sfx);
gameOverSound = true;
}
if (gameOver)
{
playerinfo = "Press enter to restart";
showPlayerInfo = true;
if (Keyboard.GetState().IsKeyDown(Keys.Enter))
{
Initialize();
}
}
if (KeyMouseReader.KeyPressed(Keys.P))
{
paused = !paused;
}
if (Keyboard.GetState().IsKeyDown(Keys.Escape))
{
this.Exit();
}
if (showPlayerInfo)
{
playerinfoTime += (float)gameTime.ElapsedGameTime.TotalSeconds;
}
if (playerinfoTime > 9)
{
showPlayerInfo = false;
playerinfoTime = 0;
}
audioEngine.Update();
if (gameOver || paused)
{
return;
}
this.Window.Title = "AsteroidKiller Score: " + playerScore.ToString();
player.Update();
bg1.Update();
bg2.Update();
bg3.Update();
//Difficulty
diffLevel = playerTime1 / 15 + playerScore / 10000;
maxAsteroids = 10 + diffLevel * 3;
rMinSpeed = 1 + diffLevel / 8;
rMaxSpeed = 4 + diffLevel / 4;
if (SpawnRate > 1)
{
SpawnRate = 200 - diffLevel * 7;
}
if (SpawnRate < 1)
{
SpawnRate = 1;
}
//Bullet logic
foreach (Bullet bullet in bullets)
{
bullet.Update();
foreach (Asteroid asteroid in asteroids)
{
asteroid.Collision(bullet.hitbox);
if (!piercingBullets)
{
bullet.Collision(asteroid.hitbox);
}
}
}
if (KeyMouseReader.LeftClickPressed() && nextShot >= 60 && !player.dead)
{
ShootBullet();
nextShot = 0;
}
if (nextShot < 60)
{
nextShot += shotRate;
}
for (int i = bullets.Count - 1; i >= 0; i--)
{
if (bullets[i].bulletHitAsteroid)
{
playerScore += 100;
}
if (bullets[i].removeBullet)
{
bullets.RemoveAt(i);
}
}
//Asteroid Logic
foreach (Asteroid asteroid in asteroids)
{
asteroid.Update();
player.Collision(asteroid.hitbox);
}
foreach (Asteroid asteroid in asteroids)
{
foreach (Asteroid asteroid2 in asteroids)
{
if (asteroid2 != asteroid && asteroid.scale > 0.7 && asteroid2.scale > 0.7) //Collision with other asteroids
{
asteroid.Collision(asteroid2.hitbox);
asteroid2.Collision(asteroid.hitbox);
}
}
if (asteroid.destroyAsteroid)
{
asteroid.texture = explosion_texture;
}
}
foreach (Asteroid asteroid in asteroids)
{
if (asteroid.spawnDaughters) //Logic for spawning "daughter" asteroids
{
rHitbox = new Rectangle((int)asteroid.pos.X, (int)asteroid.pos.Y, asteroid_texture.Width, asteroid_texture.Height);
Vector2 daughterSpeed, daughterSpeed2;
daughterSpeed = new Vector2(asteroid.speed.X, rand.Next(-2, 2));
daughterSpeed2 = new Vector2(rand.Next(-2, 2), asteroid.speed.Y);
asteroids.Add(new Asteroid(asteroid_texture, asteroid.pos, daughterSpeed, rHitbox, asteroid.scale / 2));
asteroids.Add(new Asteroid(asteroid_texture, asteroid.pos, daughterSpeed2, rHitbox, asteroid.scale / 2));
asteroid.spawnDaughters = false;
break;
}
}
nextSpawn += rand.Next(1, 5);
if (nextSpawn >= SpawnRate && asteroids.Count < maxAsteroids)
{
SpawnRandom(); //Randomize position/speed of asteroid
rScale = (11 - rand.Next(1, 4)) * 0.12f; //Randomize size of asteroid
rHitbox = new Rectangle((int)rPos.X, (int)rPos.Y, asteroid_texture.Width, asteroid_texture.Height);
asteroids.Add(new Asteroid(asteroid_texture, rPos, rSpeed, rHitbox, rScale));
nextSpawn = 0;
}
for (int i = asteroids.Count - 1; i >= 0; i--) //Goes through list in reverse order to avoid rearrangement in list
{
if (asteroids[i].destroyAsteroid && asteroids[i].animationTime > 10)
{
if (asteroidSounds < 3) //Prevents sound overlap from more than 3 explosions on the same frame
{
soundBank.PlayCue("boom6");
++asteroidSounds;
}
asteroids.RemoveAt(i);
}
}
asteroidSounds = 0;
//Player Logic
if (player.dead)
{
player.texture = player_explode;
if (player.animationTime == 1)
{
soundBank.PlayCue("boom1");
}
if (player.animationTime >= 100) //Checks to see whether animation has ended
{
player.pos = playerStartPos;
player.speed = Vector2.Zero;
player.texture = player_texture;
playerLives -= 1;
player.invulnerable = true;
player.dead = false;
}
if (player.animationTime >= 100)
{
player.animationTime = 0;
}
}
if (playerLives <= 0)
{
gameOver = true;
}
if (player.invulnerable)
{
playerInvulnerableCount += (float)gameTime.ElapsedGameTime.TotalSeconds;
}
if (playerInvulnerableCount >= playerInvulnerableTime)
{
player.invulnerable = false;
playerInvulnerableCount = 0;
}
playerTime += (float)gameTime.ElapsedGameTime.TotalSeconds;
playerTime1 = (int)playerTime;
//Powerup logic
powerup.Update();
if (!powerupExists)
{
powerupCounter += (float)gameTime.ElapsedGameTime.TotalSeconds;
}
if (powerupCounter >= nextPowerup)
{
SpawnRandom();
rHitbox = new Rectangle((int)rPos.X, (int)rPos.Y, powerup_texture.Width, powerup_texture.Height);
powerup = new Powerup(powerup_texture, rPos, rSpeed * 0.5f, rHitbox, rand.Next(1, 6));
powerupExists = true;
nextPowerup = rand.Next(10, 20);
powerupCounter = 0;
}
powerup.Collision(player.hitbox);
if (powerup.playerGotPowerup)
{
switch (powerup.id)
{
case 1:
playerLives += 1;
DisplayPlayerInfo(" Life up!");
soundBank.PlayCue("se_bonus");
break;
case 2:
shotRate = 14;
powerupTime = 0;
powerupActive = true;
DisplayPlayerInfo(" Fire rate doubled!");
soundBank.PlayCue("se_ch02");
break;
case 3:
foreach (Asteroid asteroid in asteroids)
{
asteroid.destroyAsteroid = true;
}
DisplayPlayerInfo(" KABOOM");
soundBank.PlayCue("se_slash");
break;
case 4:
player.invulnerable = true;
playerInvulnerableCount = -7;
DisplayPlayerInfo(" Invulnerability!");
soundBank.PlayCue("se_chargeup");
break;
case 5:
piercingBullets = true;
shotRate = 5;
powerupTime = 0;
powerupActive = true;
DisplayPlayerInfo(" Asteroids are made of cheese!");
soundBank.PlayCue("se_charge00");
break;
}
powerup = new Powerup(powerup_texture, Vector2.Zero, Vector2.Zero, new Rectangle(-10, -10, 0, 0), 0);
powerupExists = false;
}
if (powerupActive)
{
powerupTime += (float)gameTime.ElapsedGameTime.TotalSeconds;
}
if (powerupTime >= 10)
{
shotRate = 7;
piercingBullets = false;
powerupActive = false;
powerupTime = 0;
}
base.Update(gameTime);
}