public BaseBall getBaseBall()
{
times++;
if (times < getCurrentChapterGenRate())
{
return(null);
}
times = 0;
BaseBall gBall = null;
int sum = 0;
Random r = new Random();//随机数,用于随机取一个球
List <int> rates = getCurrentChapter().rates;
foreach (int each in rates)
{
sum += each;
}
int ran = r.Next(0, sum);
int datVal = r.Next(3) == 1?-10:10;
int a = 0;
for (int i = 0; i < rates.Count; i++)
{
if (a <= ran && (a + rates[i]) >= ran)
{
gBall = getCurrentChapter().ballsf[i].built(PlayerBall.getInstance().getVal() + r.Next(8) * datVal);
break;
}
a += rates[i];
}
gBall.setSpeed(getCurrentChapterSpeed());
return(gBall);
}
public Boolean checkBall(BaseBall ball)
{
if (ball is PlayerBall)
{
Vector2 oldPo = ball.getPosition();
if (oldPo.X < 0)
{
oldPo.X = wallRect.Width - ball.getRect().Width;
}
if (oldPo.Y < 0)
{
oldPo.Y = 0;
}
if (oldPo.X > (wallRect.Width - ball.getRect().Width))
{
oldPo.X = (ball.getRect().Width);
}
if (oldPo.Y > (wallRect.Height - ball.getRect().Height))
{
oldPo.Y = (wallRect.Height - ball.getRect().Height);
}
ball.setPosition(oldPo);
return(true);
}
else
{
Vector2 oldPo = ball.getPosition();
if (oldPo.X < 0 || oldPo.Y < 0 || oldPo.X > wallRect.Width - ball.getRect().Width || oldPo.Y > wallRect.Height - ball.getRect().Height)
{
return(false);
}
else
{
return(true);
}
}
}
public Boolean impactBall(BaseBall ball)
{
return(impactInterface.impact(ball));
}
/// <summary>
/// Allows the game component to update itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
public override void Update(GameTime gameTime)
{
// TODO: Add your update code here
List <BaseBall> removeList = new List <BaseBall>();
PlayerBall.getInstance().upDate(Game.Window.ClientBounds);
ScoreBoard.getInstance().upDate();
if (wallmg.checkBall(PlayerBall.getInstance()))
{
//越界要做的事情,默认把位置修改回
}
foreach (BaseBall ball in ballList)
{
ball.upDate(Game.Window.ClientBounds);
if (ball.getRect().Intersects(PlayerBall.getInstance().getRect()))
{
if (ball.impactBall(PlayerBall.getInstance()))
{
//小球被吃
removeList.Add(ball);
}
else
{
//被大的球吃到了
if (PlayerBall.getInstance().impactBall(ball))
{//交给player处理事件,返回true表示游戏结束
//玩家死亡
}
removeList.Add(ball);
}
}
if (!wallmg.checkBall(ball) && ball.isOutDo()) //检测超界,并且交给球处理超界事件
{ //检测是否超出边界
removeList.Add(ball);
}
}
foreach (BaseBall rball in removeList)
{
ballList.Remove(rball);//删除超出边界的球
}
//交给关卡类 随机生成球
BaseBall newball = Chapters.getInstance().getBaseBall();
if (newball != null)
{
ballList.Add(newball);
}
Chapters.getInstance().check();
base.Update(gameTime);
}