protected override void Update(GameTime gameTime)
{
foreach (var taxi in taxis)
{
taxi.Update(gameTime);
float volume = Math.Max(0, Math.Min(1, taxi.DeltaVelocity.Length()));
sound.SetEngineVolume(taxi, volume);
#region Kollision mit der Wand
Vector2 sizeHalf = taxi.Size / 2;
if (taxi.Position.X - sizeHalf.X < 0)
{
taxi.Position = new Vector2(sizeHalf.X, taxi.Position.Y);
taxi.Velocity *= new Vector2(0, 1);
}
if (taxi.Position.Y - sizeHalf.Y < 0)
{
taxi.Position = new Vector2(taxi.Position.X, sizeHalf.Y);
taxi.Velocity *= new Vector2(1, 0);
}
if (taxi.Position.X + sizeHalf.X > level.Size.X)
{
taxi.Position = new Vector2(level.Size.X - sizeHalf.X, taxi.Position.Y);
taxi.Velocity *= new Vector2(0, 1);
}
if (taxi.Position.Y + sizeHalf.Y > level.Size.Y)
{
taxi.Position = new Vector2(taxi.Position.X, level.Size.Y - sizeHalf.Y);
taxi.Velocity *= new Vector2(1, 0);
}
#endregion
#region Kollision mit Blöcken
Vector2 deltaPosition = taxi.Velocity * (float)gameTime.ElapsedGameTime.TotalSeconds;
float taxiLeft = taxi.Position.X - sizeHalf.X;
float taxiTop = taxi.Position.Y - sizeHalf.Y;
float taxiRight = taxi.Position.X + sizeHalf.X;
float taxiBottom = taxi.Position.Y + sizeHalf.Y;
taxi.OnGround = null;
float scratchVolume = 0f;
float scratchPitch = 0f;
foreach (var block in level.Blocks)
{
if (taxiLeft < block.Size.Right && taxiRight > block.Size.Left &&
taxiTop < block.Size.Bottom && taxiBottom > block.Size.Top)
{
float factorX = 0f;
if (deltaPosition.X > 0)
{
float deltaLeft = taxiRight - block.Size.Left;
factorX = deltaLeft / deltaPosition.X;
}
else
{
float deltaRight = block.Size.Right - taxiLeft;
factorX = deltaRight / -deltaPosition.X;
}
float factorY = 0f;
if (deltaPosition.Y > 0)
{
float deltaTop = taxiBottom - block.Size.Top;
factorY = deltaTop / deltaPosition.Y;
}
else
{
float deltaBottom = block.Size.Bottom - taxiTop;
factorY = deltaBottom / -deltaPosition.Y;
}
if (Math.Abs(factorX) > 1f)
{
factorX = 0f;
}
if (Math.Abs(factorY) > 1f)
{
factorY = 0f;
}
// TODO: Fix Friction
if (factorX > factorY)
{
taxi.Position -= new Vector2(deltaPosition.X * (factorX + 0.05f), 0);
if (Math.Abs(taxi.Velocity.X) > 20f)
{
sound.PlayCrash(Math.Max(0, Math.Min(1f, Math.Abs(taxi.Velocity.X) / 100)));
}
taxi.Velocity *= new Vector2(0, 1);
}
else
{
taxi.Position -= new Vector2(0, deltaPosition.Y * (factorY + 0.05f));
if (Math.Abs(taxi.Velocity.Y) > 20f)
{
sound.PlayCrash(Math.Max(0, Math.Min(1f, Math.Abs(taxi.Velocity.Y) / 100)));
}
taxi.Velocity *= new Vector2(1, 0);
taxi.Velocity -= taxi.Velocity / block.Friction *
(float)gameTime.ElapsedGameTime.TotalSeconds;
if (taxi.Position.X - (taxi.Size.X / 2) >= block.Size.Left &&
taxi.Position.X + (taxi.Size.X / 2) <= block.Size.Right &&
taxi.Position.Y < block.Size.Top)
{
taxi.OnGround = block;
if (taxi.Velocity.LengthSquared() < 100)
{
var guest = taxi.Guests.SingleOrDefault(g => g.Destination == block);
if (guest != null)
{
taxi.Guests.Remove(guest);
guest.Position = new Vector2(taxi.Position.X, guest.Destination.Size.Top);
guest.CurrentBlock = guest.Destination;
points++;
}
}
}
}
scratchVolume = Math.Max(0, Math.Min(1, taxi.Velocity.Length() / 100));
scratchPitch = (scratchVolume - 0.5f) * 2;
}
}
sound.SetScratchPitch(taxi, -scratchPitch);
sound.SetScratchVolume(taxi, scratchVolume);
#endregion
}
#region Respawn Guests
if (level.Guests.Count < level.ParallelGuests)
{
var platforms = level.Blocks.Where(b => b.SpawnPlatform & !level.Guests.Any(g => g.Departure == b)).ToList();
var departurePlatform = platforms[rand.Next(platforms.Count)];
platforms.Remove(departurePlatform);
var destinationPlatform = platforms[rand.Next(platforms.Count)];
Guest guest = new Guest()
{
Position = new Vector2(
departurePlatform.Size.X + (departurePlatform.Size.Width / 2),
departurePlatform.Size.Y),
CurrentBlock = departurePlatform,
Departure = departurePlatform,
Destination = destinationPlatform,
};
level.Guests.Add(guest);
sound.PlayShout();
}
#endregion
foreach (var guest in level.Guests.ToArray())
{
#region Einsteigen
foreach (var taxi in taxis)
{
if (guest.Departure == taxi.OnGround &&
(guest.Position - taxi.Position).LengthSquared() < 10000 &&
taxi.Velocity.LengthSquared() < 10 &&
taxi.Guests.Count < taxi.GuestLimit &&
guest.CurrentBlock == guest.Departure)
{
float guestSpeed = (float)gameTime.ElapsedGameTime.TotalSeconds * 20;
guest.Position += new Vector2(Math.Max(-guestSpeed, Math.Min(guestSpeed, taxi.Position.X - guest.Position.X)), 0);
if (Math.Abs(taxi.Position.X - guest.Position.X) < 4)
{
guest.CurrentBlock = null;
taxi.Guests.Add(guest);
}
}
}
#endregion
#region Aussteigen
if (guest.CurrentBlock == guest.Destination)
{
float guestSpeed = (float)gameTime.ElapsedGameTime.TotalSeconds * 20;
guest.Position += new Vector2(Math.Max(-guestSpeed, Math.Min(guestSpeed, guest.Destination.Size.X + (guest.Destination.Size.Width / 2) - guest.Position.X)), 0);
if (Math.Abs(guest.Destination.Size.X + (guest.Destination.Size.Width / 2) - guest.Position.X) < 4)
{
level.Guests.Remove(guest);
}
}
#endregion
}
base.Update(gameTime);
}