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));
}
}