气泡屏保

来源：互联网发布：网络语言暴力毕业论文编辑：程序博客网时间：2024/04/27 11:56

- (void)viewDidLoad {
    [super viewDidLoad];
   self.ballArray = [[NSMutableArray alloc] init];
   [ballArray release];
   for(int i =0;i<8;i++)
   {
       BubbleView *bubble = [[BubbleView alloc] initWithFrame:CGRectMake(5+i*30
                                                                          , i*60+5, 50,50)];
       bubble.xSpeed = arc4random()%5+1;
       bubble.ySpeed = arc4random()%5+1;
       if(i%2 ==0)
       {
           bubble.image = [UIImage imageNamed:@"qipao1.png"];
       }
       else if(i%2 ==1)
       {
           bubble.image = [UIImage imageNamed:@"qipao2.png"];
       }

       [self.view addSubview:bubble];
       [ballArray addObject:bubble];
   }
   [NSTimer scheduledTimerWithTimeInterval:0.03 target:self selector:@selector(fresh) userInfo:nil repeats:YES];

}

-(void)fresh
{
   for(int i = 0;i<ballArray.count;i++)
   {
       BubbleView *bubble = [ballArray objectAtIndex:i];
       for(int j = i+1;j<ballArray.count;j++)
       {
           BubbleView *bubble2 = [ballArray objectAtIndex:j];
           if(sqrt((bubble2.center.x-bubble.center.x)*(bubble2.center.x-bubble.center.x)+
               (bubble2.center.y-bubble.center.y)*(bubble2.center.y-bubble.center.y))
               <=50)
           {
               int tempx = 0;
               int tempy = 0;

               tempx = bubble.xSpeed;
               bubble.xSpeed = bubble2.xSpeed;
               bubble2.xSpeed =tempx;

               tempy = bubble.ySpeed;
               bubble.ySpeed = bubble2.ySpeed;
               bubble2.ySpeed =tempy;

               CGPoint center = CGPointMake(bubble.center.x+bubble.xSpeed,bubble.center.y+bubble.ySpeed);
               bubble.center = center;

               center = CGPointMake(bubble2.center.x+bubble2.xSpeed,bubble2.center.y+bubble2.ySpeed);
               bubble2.center = center;
           }

       }

       if((bubble.frame.origin.x + bubble.frame.size.width >= 320 && bubble.xSpeed >0)
           ||(bubble.frame.origin.x <=0 && bubble.xSpeed < 0))
       {
           bubble.xSpeed = -bubble.xSpeed;
       }

       if((bubble.frame.origin.y + bubble.frame.size.height >= 460 && bubble.ySpeed >0)
           ||(bubble.frame.origin.y   <=0 && bubble.ySpeed < 0 ))
       {
           bubble.ySpeed = -bubble.ySpeed;
       }

       CGPoint center = CGPointMake(bubble.center.x+bubble.xSpeed,bubble.center.y+bubble.ySpeed);
       bubble.center = center;
   }


}