//Checks ball position and updates it depending on whether collides or not
private void updateBallPosition()
{
//Check if game is started
if (isStarted)
{
//Check winning condition
if (_bricks.Count <= 0)
{
winningCondition = true;
isStarted = false;
}
else
{
//Get ball's position values
float xPos = ball.getX();
float yPos = ball.getY();
//Check collision against borders
if (xPos > GameCanvas.Width - ball.getWidth())
{
Canvas.SetLeft(ball.getBall(), GameCanvas.ActualWidth - ball.getWidth());
ball.setXVector(ball.getXVector() * -1);
}
if (xPos < 0)
{
Canvas.SetLeft(ball.getBall(), 0);
ball.setXVector(ball.getXVector() * -1);
}
if (yPos < 0)
{
Canvas.SetTop(ball.getBall(), 0);
ball.setYVector(ball.getYVector() * -1);
}
//Check bottom border
if (yPos > GameCanvas.Height - ball.getHeight())
{
gameOver();
}
//If ball is close enough to top border
if (ball.getY() < 150)
{
//Check collision againt every brick
foreach (Brick brick in _bricks)
{
//If collision occurs
if (brick.collides(ball.getHitBox()))
{
//Break brick
brick.Break();
//Determine effect
this.impactEffect(brick);
//Add Score
this.calculateScore();
//Remove if fully broken
if (brick.isBrickBroken())
{
_bricks.Remove(brick);
GameCanvas.Children.Remove(brick.getBrick());
}
//Determine ball direction depending of it hitting the side (left/right o top/bottom)
if (ball.getX() >= brick.getX() && ball.getX() <= brick.getX() + brick.getWidth() || (ball.getX() * ball.getHeight()) >= brick.getX() && (ball.getX() * ball.getHeight()) <= brick.getX() + brick.getWidth())
{
ball.setYVector(ball.getYVector() * -1);
}
else if (ball.getY() >= brick.getY() && ball.getY() <= brick.getY() + brick.getHeight() || (ball.getY() * ball.getHeight()) >= brick.getY() && (ball.getY() * ball.getHeight()) <= brick.getY() + brick.getWidth())
{
ball.setXVector(ball.getXVector() * -1);
}
break;
}
}
}
//If ball is near the bottom enough calculate collision against paddle
if (ball.getY() > 200)
{
if (paddle.collides(ball.getHitBox()))
{
ball.setY(paddle.getY() - 11);
ball.setYVector(ball.getYVector() * -1);
}
}
//Set Ball new psoition
xPos += ball.getXVector() * ball.getSpeed();
yPos += ball.getYVector() * ball.getSpeed();
ball.setX((int)xPos);
ball.setY((int)yPos);
Canvas.SetTop(ball.getBall(), ball.getY());
Canvas.SetLeft(ball.getBall(), ball.getX());
}
}
}
