对于鱼是否可以垂钓是用通知进行传递信息的，可垂钓、不可垂钓两种状态
可垂钓：鱼钩沉到鱼塘时受到垂钓通知(将鱼钩底部的坐标传过来)，现在鱼可以垂钓，当根据上钩概率等因素判断鱼上钩后，对鱼进行旋转，然后执行上钩动画。动画结束后执行代理。
//初始化可以垂钓的鱼
- (instancetype)initCanCatchFishWithType:(FishModelImageViewType)type andDirection:(FishModelImageViewDirection)dir{
if (self = [super init]){
self.direction = dir;
[self initViewWithType:type andDuration:1];
if (dir == FishModelImageViewFromLeft){//从左往右，默认所有的鱼都是从右往左
self.transform = CGAffineTransformMakeScale(-1, 1); //镜像
}
[self initFishView];
}
return self;
}
#pragma mark - 可以垂钓的鱼（计时器）
- (void)initFishView{
//接收可以垂钓的通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notificationCanCatch:) name:NotificationFishHookStop object:nil];
//接收不可垂钓的通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notificationCannotCatch) name:NotificationFishHookMove object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(removeTimer) name:NotificationRemoveFishModelTimer object:nil];
//创建计时器
_linkTimer = [CADisplayLink displayLinkWithTarget:self selector:@selector(fishMove)];
//启动这个link(加入到线程池)
[_linkTimer addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
_offsetX = ScreenWidth;
_offsetY = 100;
_fishWidth = self.frame.size.width;
//Y可变高度范围
_randomRange = (int) (YuTangHeight - self.frame.size.height - OffSetYRange);
self.speed = (ScreenWidth + _fishWidth)/self.duration;//游动速度
self.changeX = self.speed/60.0;//计时器每秒60次
DLog(@"鱼游动的速度：%f,每次位移:%f", self.speed,self.changeX);
}
鱼移动动画和上钩动画
- (void)fishMove{
if (self.direction == FishModelImageViewFromLeft){//从左至右
if (_offsetX > ScreenWidth + _fishWidth){
_offsetY = arc4random()%_randomRange + OffSetYRange;
_offsetX = - _fishWidth - _offsetY;
}
_offsetX+=self.changeX;
self.frame = [self resetFrameOrigin:CGPointMake(_offsetX, _offsetY)];
if ([self fishCanBeCatchedWithOffsetX:_offsetX + _fishWidth]){
NSLog(@"钓到从左到右的鱼了:%ld",(long)self.fishType);
CGAffineTransform transform = CGAffineTransformIdentity;
transform = CGAffineTransformScale(transform, -1, 1);//镜像
transform = CGAffineTransformRotate(transform, M_PI_2);//旋转90度
self.transform = transform;
self.frame = [self resetFrameOrigin:CGPointMake(ScreenWidth*2, 0)];
[self fishCatchedMoveUpWithOffsetX:_offsetX + _fishWidth];
_offsetX = ScreenWidth + _fishWidth + 1;//重置起点
_linkTimer.paused = YES;//计时器暂停
}
}else {//从右到左
if (_offsetX < -_fishWidth){
_offsetY = arc4random()%_randomRange + OffSetYRange;
_offsetX = ScreenWidth + _offsetY;
}
_offsetX-=self.changeX;
self.frame = [self resetFrameOrigin:CGPointMake(_offsetX, _offsetY)];
if ([self fishCanBeCatchedWithOffsetX:_offsetX]){
NSLog(@"钓到从右到左的鱼了:%ld",(long)self.fishType);
self.transform = CGAffineTransformMakeRotation(M_PI_2);
self.frame = [self resetFrameOrigin:CGPointMake(ScreenWidth*2, 0)];
[self fishCatchedMoveUpWithOffsetX:_offsetX];
_offsetX = -_fishWidth-1;//重置起点
_linkTimer.paused = YES;//计时器暂停
}
}
}
