/// <summary>
/// ����ײ����ã����ש�����Ƿ����������
/// ����У����߽��ᱻ������Ϸ�е�list powerup
/// </summary>
/// <param name="brick">��Ҫ����ש��</param>
private void CheckBrickForPowerUps(Brick brick)
{
if (brick.powerBall) //�������������Ч
{
int radius = 7; //�����ɵ���İ뾶�������
ballList.Add(new Ball(Brushes.White, radius, brick.Centre.X, brick.Centre.Y, false));
//��������ש����������ɵ�
}
//�������Ҫ������������Ч
string powerUpLabel = null;
Brush powerUpBrush = null;
if (brick.powerShrink)
{
powerUpLabel = "����";
powerUpBrush = Brushes.LightBlue;
}
if (brick.powerStretch)
{
powerUpLabel = "�쳤";
powerUpBrush = Brushes.LightGreen;
}
if (brick.powerMulti)
{
powerUpLabel = "������";
powerUpBrush = Brushes.Pink;
}
if (brick.powerBullet)
{
powerUpLabel = "�ӵ�";
powerUpBrush = Brushes.Red;
}
if (powerUpLabel != null)
{
PowerUp powerup = new PowerUp(powerUpLabel, powerUpBrush, brick.Centre.X, brick.Centre.Y);
powerUpList.Add(powerup);
} //ֻ��ש������������ߵ�����²�����������
}
/// <summary>
/// Called after a collision. Checks the brick to see if it had any powerups inside it
/// If it does, the powerups are added to the list of powerups in play
/// </summary>
/// <param name="brick">The brick to check for powerups</param>
private void CheckBrickForPowerUps(Brick brick)
{
if (brick.powerBall) //extra ball instantly takes effect
{
Random randy = new Random();
int radius = randy.Next(3, 8); //new ball has a random radius
ballList.Add(new Ball(Brushes.Black, radius, brick.Centre.X, brick.Centre.Y, false));
//new ball is created centred at the centre of the old brick
}
//these powerups have to be caught by the paddle
string powerUpLabel = null;
Brush powerUpBrush = null;
if (brick.powerShrink)
{
powerUpLabel = "Shrink";
powerUpBrush = Brushes.LightBlue;
}
if (brick.powerStretch)
{
powerUpLabel = "Stretch";
powerUpBrush = Brushes.LightGreen;
}
if (brick.powerMulti)
{
powerUpLabel = "Multi";
powerUpBrush = Brushes.Pink;
}
if (powerUpLabel != null)
{
PowerUp powerup = new PowerUp(powerUpLabel, powerUpBrush, brick.Centre.X, brick.Centre.Y);
powerUpList.Add(powerup);
} //only add the powerup if a powerup is found in the brick
}