/// <summary>
/// Handles computer input.
/// </summary>
private void HandleComputer(GameTime gameTime)
{
// Allow players to dynamically join in
if (InputManager.IsActionPressed(Player, InputActions.Ok))
{
Playground.State.Manager.Game.AudioManager.Play(SoundEffects.MenuValidate);
IsComputer = false;
return;
}
Vector2 closestBall = Vector2.Zero;
float closestDistance = float.MaxValue;
foreach (Ball ball in Playground.GetEntities <Ball>())
{
Vector2 otherpos = ball.PhysicsBody.Position + ball.PhysicsBody.LinearVelocity * (float)gameTime.ElapsedGameTime.TotalSeconds;
float distance = Vector2.DistanceSquared(PhysicsBody.Position, otherpos);
if (closestBall == null ||
distance < closestDistance)
{
closestBall = otherpos;
closestDistance = distance;
}
}
if (closestDistance != float.MaxValue)
{
// Move paddle towards ball
Vector2 velocity = Vector2.Zero;
if (Player == PlayerIndex.One || Player == PlayerIndex.Two)
{
float xd = closestBall.X - PhysicsBody.Position.X;
if (Math.Abs(xd) > 8f * BreakoutPartyGame.MeterPerPixel)
{
velocity.X = xd < 0 ? -PaddleSpeed : PaddleSpeed;
}
}
else
{
float yd = closestBall.Y - PhysicsBody.Position.Y;
if (Math.Abs(yd) > 8f * BreakoutPartyGame.MeterPerPixel)
{
velocity.Y = yd < 0 ? -PaddleSpeed : PaddleSpeed;
}
}
PhysicsBody.LinearVelocity = velocity;
}
}
/// <summary>
/// Updates the <see cref="Entity"/>.
/// </summary>
/// <param name="gameTime">Timing information.</param>
public override void Update(GameTime gameTime)
{
if (PhysicsBody.Position.X > 320 * BreakoutPartyGame.MeterPerPixel ||
PhysicsBody.Position.X < 0 ||
PhysicsBody.Position.Y > 240 * BreakoutPartyGame.MeterPerPixel ||
PhysicsBody.Position.Y < 0)
{
Playground.Remove(this);
}
// Block cannot be moved as long as it has health left
if (Health > 0)
{
PhysicsBody.LinearVelocity = Vector2.Zero;
PhysicsBody.AngularVelocity = 0;
}
}
