/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Exit the game.
if (Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// Play sound effect when the player shoots.
if (Keyboard.GetState().IsKeyDown(Keys.Space) && player1.MySuperProjectile.ProjectileState == SuperProjectile.PROJECTILE_STATE.STILL)
{
playerFire.Play();
}
#region Handle behaviour between player and sentry.
foreach (var item in sentries)
{
// The following if statement will ensure that the sentry will only carry out it's behaviour if it is still visible.
if (item.Visible == true)
{
// Follow the player's position.
item.Follow(player1);
// Ensure the sentry and the player collide if the sentry is still visible.
player1.CollisionSentry(item);
#region Handle the sentry's projectile colllsions with walls
foreach (var wall in projectileColliders)
{
item.SentrySuperProjectile.WallCollision(wall);
}
#endregion
#region what will happen when a sentry dies.
// If the sentry is killed...
if (item.Health <= 0)
{
if (item.Visible == true)
{
// ...Add to the killcount.
killCount++;
// Create an explosion where the sentry once was.
deathExplosion = new AnimateSheetSprite(this, item.PixelPosition, new List <TileRef>()
{
new TileRef(0, 0, 0),
new TileRef(1, 0, 0),
new TileRef(2, 0, 0),
}, 64, 64, 0f);
}
// Make the sentry invisible.
item.Visible = false;
}
#endregion
}
}
#endregion
#region Handle the player and player projectile's collisions with walls.
// Ensure that the player collides with locks.
foreach (Lock collisionLock in locks)
{
player1.CollisionLock(collisionLock);
}
// Ensure the player projectile collides with walls.
foreach (var item in projectileColliders)
{
player1.MySuperProjectile.WallCollision(item);
}
#endregion
#region What to do when all sentries have been destroyed.
if (killCount == sentryCount)
{
MediaPlayer.Volume -= 0.4f;
foreach (Lock item in locks)
{
item.Visible = false;
}
gameOverState = true;
}
#endregion
#region Play background music when test timer is up.
// Play background music.
//timeSpan -= gameTime.ElapsedGameTime;
// timeSpan < TimeSpan.Zero
// Add the above line to the if statement below to test the countdown.
if (MediaPlayer.Volume != 0.5f)
{
MediaPlayer.Play(backgroundMusic);
MediaPlayer.Volume += 0.5f;
}
#endregion
// What to do when the player reaches the exit tile.
if (player1.BoundingRectangle.Intersects(exitTile.CollisionField) && player1.Visible == true)
{
victoryFanfare.Play();
player1.Visible = false;
}
base.Update(gameTime);
// TODO: Add your update logic here
/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
}