/// <summary>
/// Processes possible the-ball-to-a-brick collisions, and does appropriate velocity changes if they occur.
/// </summary>
private void ProcessPossibleBrickCollisions()
{
for (int i = 0; i < bricks.Length; i++)
{
if (bricks[i] != null)
{
Position currentCollisionPosition = CollisionDetector.BrickToCircleIntersection(ball, bricks[i]);
if (currentCollisionPosition != Position.None)
{
PositionRelationBallVelocityManager
.ChangeVelocityAccordingToCollisionPosition(ball, currentCollisionPosition);
bricks[i].Dispose();
bricks[i] = null;
}
}
}
}
/// <summary>
/// Processes possible the-ball-to-the-plate collision, and if it occurs, changes velocity of the ball.
/// </summary>
private void ProcessPossiblePlateCollision()
{
// Checks whether the ball hits the plate or not. 1)
// If not, then if its Y coord is <= plate's one, exits the game. 2)
// If yes, it reverses Vy Velocity and Gets the X speed of the ball depending on what part 3)
// of the plate has been hit
if (ball.Y + (ball.Radius * 2) >= plate.Y)
{
if (CollisionDetector.BrickToCircleIntersection(ball, plate) != Position.None)
{
double scale = ball.X + ball.Radius - (plate.X + plate.Width / 2);
ball.Vx = (scale / Math.Sqrt(Math.Abs(scale))) / 4.5;
ball.Vy *= -1;
}
else if (ball.Y >= graphics.PreferredBackBufferHeight)
{
EndGame();
}
}
}