/// <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)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
var bounds = GraphicsDevice.Viewport.Bounds;
var touchState = Keyboard.GetState();
if (touchState.IsKeyDown(Keys.Left))
{
PaddleBottom.X -= (float)(PaddleBottom.Speed * gameTime.ElapsedGameTime.TotalMilliseconds);
}
else if (touchState.IsKeyDown(Keys.Right))
{
PaddleBottom.X += (float)(PaddleBottom.Speed * gameTime.ElapsedGameTime.TotalMilliseconds);
}
PaddleBottom.X = MathHelper.Clamp(PaddleBottom.X, bounds.Left, bounds.Right - PaddleBottom.Width);
if (touchState.IsKeyDown(Keys.A))
{
PaddleTop.X -= (float)(PaddleTop.Speed * gameTime.ElapsedGameTime.TotalMilliseconds);
}
else if (touchState.IsKeyDown(Keys.D))
{
PaddleTop.X += (float)(PaddleTop.Speed * gameTime.ElapsedGameTime.TotalMilliseconds);
}
PaddleTop.X = MathHelper.Clamp(PaddleTop.X, bounds.Left, bounds.Right - PaddleTop.Width);
var ballPositionChange = Ball.Direction * new Vector2((float)(gameTime.ElapsedGameTime.TotalMilliseconds * Ball.Speed));
Ball.X += ballPositionChange.X;
Ball.Y += ballPositionChange.Y;
foreach (Wall wall in Walls)
{
if (CollisionDetector.Overlaps(Ball, wall))
{
Ball.Direction.TurnHorizontal();
Ball.Speed *= Ball.BumpSpeedIncreaseFactor;
}
}
foreach (Wall goal in Goals)
{
if (CollisionDetector.Overlaps(Ball, goal))
{
if (goal.Player.Equals(PaddleBottom))
{
ScoreTop++;
}
else
{
ScoreBottom++;
}
UpdateTitle();
Ball.X = bounds.Width / 2 - Ball.Width / 2;
Ball.Y = bounds.Height / 2 - Ball.Height / 2;
Ball.Speed = GameConstants.DefaultInitialBallSpeed;
HitSound.Play();
break;
}
}
if ((CollisionDetector.Overlaps(Ball, PaddleBottom)) || (CollisionDetector.Overlaps(Ball, PaddleTop)))
{
Ball.Direction.TurnVertical();
Ball.Speed *= Ball.BumpSpeedIncreaseFactor;
}
base.Update(gameTime);
}
/// <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)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
var touchState = Keyboard.GetState();
if (touchState.IsKeyDown(Keys.Left))
{
PaddleBottom.X = PaddleBottom.X - (float)(PaddleBottom.Speed *
gameTime.ElapsedGameTime.TotalMilliseconds);
}
if (touchState.IsKeyDown(Keys.Right))
{
PaddleBottom.X = PaddleBottom.X + (float)(PaddleBottom.Speed *
gameTime.ElapsedGameTime.TotalMilliseconds);
}
PaddleBottom.X = MathHelper.Clamp(PaddleBottom.X, screenBounds.Left, screenBounds.Right -
PaddleBottom.Width);
//Player two
if (touchState.IsKeyDown(Keys.A))
{
PaddleTop.X = PaddleTop.X - (float)(PaddleTop.Speed *
gameTime.ElapsedGameTime.TotalMilliseconds);
}
if (touchState.IsKeyDown(Keys.D))
{
PaddleTop.X = PaddleTop.X + (float)(PaddleTop.Speed *
gameTime.ElapsedGameTime.TotalMilliseconds);
}
PaddleTop.X = MathHelper.Clamp(PaddleTop.X, screenBounds.Left, screenBounds.Right -
PaddleTop.Width);
var ballPositionChange = Ball.Direction *
(float)(gameTime.ElapsedGameTime.TotalMilliseconds * Ball.Speed);
Ball.X += ballPositionChange.X;
Ball.Y += ballPositionChange.Y;
foreach (Wall wall in Walls)
{
if (CollisionDetector.Overlaps(Ball, wall))
{
Ball.Direction = new Vector2(Ball.Direction.X * -1, Ball.Direction.Y);
if (Ball.BumpSpeedIncreaseFactor * Ball.Speed > Ball.MaximumSpeed)
{
Ball.Speed = Ball.MaximumSpeed;
}
else
{
Ball.Speed *= Ball.BumpSpeedIncreaseFactor;
}
}
}
foreach (Wall goal in Goals)
{
if (CollisionDetector.Overlaps(Ball, goal))
{
Ball.X = screenBounds.Width / 2f - GameConstants.DefaultBallSize / 2f;
Ball.Y = screenBounds.Height / 2f - GameConstants.DefaultBallSize / 2f;
Ball.Speed = GameConstants.DefaultInitialBallSpeed;
HitSound.Play();
}
}
if (CollisionDetector.Overlaps(Ball, PaddleTop) || CollisionDetector.Overlaps(Ball, PaddleBottom))
{
Ball.Direction = new Vector2(Ball.Direction.X, Ball.Direction.Y * -1);
if (Ball.BumpSpeedIncreaseFactor * Ball.Speed > Ball.MaximumSpeed)
{
Ball.Speed = Ball.MaximumSpeed;
}
else
{
Ball.Speed *= Ball.BumpSpeedIncreaseFactor;
}
}
base.Update(gameTime);
}
