private void checkBallCollisions()
{
SizeF windowSize = renderTarget.Size;
float windowWidth = windowSize.Width;
float windowHeight = windowSize.Height;
PointF ballPos = ball.GetPosition();
PointF ballVel = ball.GetVelocity();
RectangleF ballBounds = ball.GetBoundingBox();
// check collision with left and right screen bounds
if (ballBounds.Right < 0 && ballVel.X < 0)
{
rightScore.IncScore();
ball.SetPosition(new PointF(windowHeight / 2, windowWidth / 2));
}
else if (ballBounds.Left > windowWidth && ballVel.X > 0)
{
leftScore.IncScore();
ball.SetPosition(new PointF(windowHeight / 2, windowWidth / 2));
}
// check collision with top and bottom screen bounds
if ((ballBounds.Top < 0 && ballVel.Y < 0) || (ballBounds.Bottom > windowHeight && ballVel.Y > 0))
{
soundMgr.PlayWallHit();
ball.SetVelocity(new PointF(ballVel.X, ballVel.Y * -1));
}
RectangleF leftPaddleBounds = leftPaddle.GetBoundingBox();
RectangleF rightPaddleBounds = rightPaddle.GetBoundingBox();
if ((ballBounds.IntersectsWith(leftPaddleBounds) && ball.GetVelocity().X < 0) || (ballBounds.IntersectsWith(rightPaddleBounds) && ball.GetVelocity().X > 0))
{
soundMgr.PlayPaddleHit();
ball.SetVelocity(new PointF(ballVel.X * -1, ballVel.Y));
}
}
public void Update()
{
if (started && !paused)
{
bool collided = false;
foreach (INonReactiveCollideable collideable in nonReactiveCollideables)
{
if (ball.GetBoundingBox().Intersects(collideable.GetBoundingBox()))
{
ball.CollideWith(collideable);
if (collideable is Wall wall)
{
if (wall.side == Side.BOTTOM || wall.side == Side.TOP)
{
soundManager.PlayPointWonSound(wall.side == Side.TOP);
scoreDisplay.UpdateScore(wall.side == Side.TOP);
Reset(false);
Start();
return;
}
else
{
soundManager.PlayBallWallSound();
}
}
else if (collideable is Paddle)
{
soundManager.PlayBallPaddleSound();
}
collided = true;
}
if (collideable == computerPaddle)
{
computerPaddle.ReceiveIntendedPosition(ball.GetBoundingBox().X + ball.GetBoundingBox().Width / 2);
}
else if (collideable == playerPaddle)
{
playerPaddle.ReceiveIntendedPosition(lastMouseXPos);
}
collideable.Update();
}
if (collided && ballCollidedLastFrame)
{
ball.Reset();
}
ballCollidedLastFrame = collided;
ball.Update();
scoreDisplay.Update();
}
else if (starting)
{
startTimer--;
if (startTimer == 60 || startTimer == 120 || startTimer == 0)
{
soundManager.PlayCountdownSound();
}
if (startTimer == 0)
{
started = true;
starting = false;
}
}
}
