Winform打砖块游戏制作step by step第7节---碰撞检测

//碰撞检测
public void Hit()
{ //砖块与小球碰撞
for (int i = ; i < m_bricks.m_Rects.Count; i++)
{
if (m_ball.Rect.IntersectsWith(m_bricks.m_Rects[i].m_Rect))
{ m_bricks.m_Rects.Remove(m_bricks.m_Rects[i]); m_ball.SpeedX = -m_ball.SpeedX;
m_ball.SpeedY = -m_ball.SpeedY; //得分
//score += new Random().Next(50, 80) + 100;
}
} //小球与挡板碰撞
if (m_ball.XPos + m_ball.Rect.Width - >= m_board.XPos && m_ball.XPos <= m_board.XPos + m_board.Rect.Width - )
{
if (m_ball.YPos >= m_board.YPos - m_ball.Rect.Height - )
{
switch (m_board.Direction)
{
case BoardDirection.Left:
{
m_ball.SpeedX = -(new Random().Next(, ));//创造一些摩擦力的感觉
}
break;
case BoardDirection.Right:
{
m_ball.SpeedX = (new Random().Next(, ));//创造一些摩擦力的感觉
}
break;
default:
break;
}
m_ball.SpeedY = (new Random().Next(, ));
}
}
}