/// <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();
}
ScreenWidth = GraphicsDevice.Viewport.Width;
ScreenHeight = GraphicsDevice.Viewport.Height;
ball.Move(ball.Velocity);
Vector2 player1Velocity = Input.GetKeyboardInputDirection(PlayerIndex.One) * KEYBOARD_PADDLE_SPEED;
Vector2 player2Velocity = Input.GetKeyboardInputDirection(PlayerIndex.Two) * KEYBOARD_PADDLE_SPEED;
player1.Move(player1Velocity);
player2.Move(player2Velocity);
if (ball.Position.X + ball.Texture.Width < 0)
{
ball.Launch(BALL_START_SPEED);
}
if (ball.Position.X > ScreenWidth)
{
ball.Launch(BALL_START_SPEED);
}
if (GameObject.CheckPaddleBallCollision(player1, ball))
{
ball.Velocity.X = Math.Abs(ball.Velocity.X);
}
if (GameObject.CheckPaddleBallCollision(player2, ball))
{
ball.Velocity.X = -Math.Abs(ball.Velocity.X);
}
base.Update(gameTime);
}