public void Think(Ball ball)
{
int n = _rng.Next(10);
switch (n)
{
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
case 8:
RealThink(ball);
break;
case 9:
Velocity.X = 0.0f;
Velocity.Y = 0.0f;
break;
default:
// do nothing
break;
}
}
private Vector2 CollisionPoint(bool playerCollision, Ball ball)
{
float x, y = ball.Midpoint().Y;
if (playerCollision)
{
x = _player.Position.X + _player.Width;
}
else
{
x = _ai.Position.X;
}
return new Vector2(x, y);
}
private void RealThink(Ball ball)
{
if (ball.Midpoint().Y > Midpoint().Y)
{
if (Velocity.Y < _yVelocity)
{
Velocity.Y += 0.05f;
if (Velocity.Y > _yVelocity)
{
Velocity.Y = _yVelocity;
}
}
}
else if (ball.Midpoint().Y < Midpoint().Y)
{
if (Velocity.Y > -_yVelocity)
{
Velocity.Y -= 0.05f;
if (Velocity.Y < -_yVelocity)
{
Velocity.Y = -_yVelocity;
}
}
}
else if (ball.Midpoint().Y == Midpoint().Y)
{
Velocity.Y = 0.0f;
}
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
_spriteBatch = new SpriteBatch(GraphicsDevice);
_player = new PlayerPaddle(_court);
_player.Texture = Content.Load<Texture2D>("paddle");
_player.StartingPosition();
_ai = new AIPaddle(_court);
_ai.Texture = Content.Load<Texture2D>("paddle");
_ai.StartingPosition();
_ball = new Ball(_court);
_ball.Texture = Content.Load<Texture2D>("ball");
_ball.StartingPosition(_court);
_splash = Content.Load<Texture2D>("splash");
_font = Content.Load<SpriteFont>("ScoreFont");
_gameEndHeadingFont = Content.Load<SpriteFont>("GameEndHeading");
_paddleCollidePlayer = Content.Load<SoundEffect>("paddle_collide_player");
_paddleCollideAi = Content.Load<SoundEffect>("paddle_collide_ai");
_wallCollide = Content.Load<SoundEffect>("wall_collide");
_aiScoreSound = Content.Load<SoundEffect>("disappointed_crowd_idiot");
_playerScoreSound = Content.Load<SoundEffect>("pleased_crowd_about_time");
_meanGreen = new Color(45, 198, 13);
_creditsFont = Content.Load<SpriteFont>("CreditsFont");
var creditsYSpacing = _creditsFont.MeasureString("X").Y * 0.5f ;
var creditLineSizes = _creditLines.ConvertAll(x => _creditsFont.MeasureString(x));
var creditsBaseY = _court.Height;
for (int i = 0; i < _creditLines.Count; i++)
{
_creditsBaseByLine.Add(new Vector2(_court.Width / 2 - creditLineSizes[i].X / 2,
creditsBaseY + ((creditLineSizes[i].Y * i) + i * creditsYSpacing)));
}
_particleEffect = new ParticleEffect();
_particleEffect.Texture = Content.Load<Texture2D>("spark02");
_logger.Initialize(new GameTime(), 1000.0f / 15.0f);
_gameState = GameState.Playing;
}
