iOS 动画实战之钓鱼小游戏最近写了一款钓鱼小游戏

前言

最近写了一款钓鱼小游戏，自己平时也没做过游戏，本来以为这种游戏要用cocos2d什么的实现，后来发现其实动画就可以实现很棒的效果，先看看效果图。

钓鱼游戏.gif

思维导图

首先我们看下思维导图，本游戏主要分为4大块，其中鱼的实现最为复杂

思维导图

项目结构

准备工作

首先将需要的图准备好，这个鱼其实就是一组图片，图片大小固定，每一帧位置变化，所以看起来是一个上下游动的鱼。

动态.gif

单张图片

鱼钩模块

摆动动画

鱼钩的摆动范围是[M_PI/4.0,-M_PI/4.0] (垂直向下为0度，顺时针为正)，这里利用了计时器进行角度的更改,计时器用的CADisplayLink，它是一个和屏幕刷新率一致的定时器，如果没有卡顿，每秒刷新次数是60次，本Demo很多计时器用的都是CADisplayLink。下面是鱼钩的主要代码（重点：1、设置锚点后重置frame，2、更改角度，3、旋转）。其中定义了一个block将角度angle回传到FishingView界面计算鱼钩落到池塘的位置。

@property (nonatomic, strong) CADisplayLink *linkTimer;

@property (nonatomic, assign) BOOL isReduce;//改变方向

@property (nonatomic, assign) CGFloat angle;//摆动的角度

- (void)initView{

[self setAnchorPoint:CGPointMake(0.5, 0) forView:self];

UIImageView *gouImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, self.frame.size.height - 35 , 30, 35)];

gouImageView.image = [UIImage imageNamed:@"fish_catcher_tong"];

[self addSubview:gouImageView];

UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake((self.frame.size.width - 3)/2.0, 0, 3, self.frame.size.height - 35)];

lineView.backgroundColor = HEXCOLOR(0x9e664a);

[self addSubview:lineView];

// 创建一个对象计时器

_linkTimer = [CADisplayLink displayLinkWithTarget:self selector:@selector(hookMove)];

//启动这个link

[_linkTimer addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];

}

//设置锚点后重新设置frame

- (void) setAnchorPoint:(CGPoint)anchorpoint forView:(UIView *)view{

CGRect oldFrame = view.frame;

view.layer.anchorPoint = anchorpoint;

view.frame = oldFrame;

}

#pragma mark - 鱼钩摆动

- (void)hookMove{

if (self.isReduce){

_angle-=1.8*cos(1.5*_angle)*0.01;//计算角度,利用cos模拟上升过程中减慢，下降加快

if (_angle < -M_PI/180*45){

self.isReduce = NO;

}

}else {

_angle+=1.8*cos(1.5*_angle)*0.01;

if (_angle > M_PI/180*45){

self.isReduce = YES;

}

if (self.angleBlock){

self.angleBlock(_angle);

}

// DLog(@"鱼钩角度%f",_angle);

//旋转动画

self.transform = CGAffineTransformMakeRotation(_angle);

}

鱼模块

鱼模块是继承自UIImageView的一个类

鱼模块提供了三种初始化方式，可垂钓的鱼、不可垂钓的鱼（可以不用）、钓到的鱼三种鱼。

鱼的移动方式有两种，使用枚举定义，从左到右，从右到左

鱼的种类有六种，用枚举进行了定义

typedef NS_ENUM(NSInteger, FishModelImageViewType){

FishModelImageViewTypeXHY = 0, //小黄鱼

FishModelImageViewTypeSBY = 1, //石斑鱼

FishModelImageViewTypeHSY = 2, //红杉鱼

FishModelImageViewTypeBWY = 3, //斑纹鱼

FishModelImageViewTypeSHY = 4, //珊瑚鱼

FishModelImageViewTypeSY = 5, //鲨鱼

};

提供了一个钓到鱼后的代理

FishModelImageViewDelegate

//鱼的种类-游动方向-赢取金额

方法 - (void)catchTheFishWithType:(FishModelImageViewType)type

andDirection:(FishModelImageViewDirection)dir

andWinCount:(int)count;

1、动态的鱼

加载动态鱼的方法

//初始化UIImageView

UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 55, 55)];

//如果图片的名字是有顺序的，例如xhy1,xhy2,xhy3...,可以取去掉序号的名字，然后会自动将所有的图片都加载进来，duration是动画时长

imageView.image = [UIImage animatedImageNamed:@"xhy" duration:1];

[self.view addSubview:imageView];

初始化不同的鱼，不同的鱼大小不同，移动的速度不同，所以动画时长不一样

//初始化小鱼 git动画时长

- (void)initViewWithType:(FishModelImageViewType)type andDuration:(double)time{

self.fishType = type;

switch (type) {

case FishModelImageViewTypeXHY://小黄鱼

self.duration = 6.0;

self.frame = CGRectMake(-100, 0, 35, 40); //鱼的大小要定义好

self.image = [UIImage animatedImageNamed:@"xhy" duration:time];

break;

case FishModelImageViewTypeSBY://石斑鱼

self.duration = 7.0;

self.frame = CGRectMake(-100, 0, 50, 50);

self.image = [UIImage animatedImageNamed:@"sby" duration:time];

break;

case FishModelImageViewTypeHSY://红杉鱼

self.duration = 8.0;

self.frame = CGRectMake(-100, 0, 50, 40);

self.image = [UIImage animatedImageNamed:@"hsy" duration:time];

break;

case FishModelImageViewTypeBWY://斑纹鱼

self.duration = 8.5;

self.frame = CGRectMake(-100, 0, 65, 53);

self.image = [UIImage animatedImageNamed:@"bwy" duration:time];

break;

case FishModelImageViewTypeSHY://珊瑚鱼

self.duration = 9.0;

self.frame = CGRectMake(-100, 0, 55, 55);

self.image = [UIImage animatedImageNamed:@"shy" duration:time];

break;

case FishModelImageViewTypeSY://鲨鱼

self.duration = 11.0;

self.frame = CGRectMake(-200, 0, 145, 90);

self.image = [UIImage animatedImageNamed:@"sy" duration:time];

break;

}

2、移动的鱼

提供的图片都是头朝左的(见上面的动图)，所以从左往右游的话图片需要进行镜像反转

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

}

鱼上钩的概率和赢得的金币个数

//鱼是否可以被钓上来（根据概率计算）

- (BOOL)fishCanBeCatchedWithOffsetX:(CGFloat)offsetX{

if (!self.isCanCatch) return NO;

if (fabs(offsetX - self.hookX) > self.changeX/2.0) return NO; //判断是否到达了可以垂钓的点

int random = arc4random()%100; //[0,99]

DLog(@"random:%d", random);

switch (self.fishType) {

case FishModelImageViewTypeXHY://小黄鱼 80% 金币2

if (random < 80){

self.moneyCount = 2;

return YES;

}

break;

case FishModelImageViewTypeSBY://石斑鱼 50% 金币5

if (random < 50) {

self.moneyCount = 5;

return YES;

}

break;

case FishModelImageViewTypeHSY://红杉鱼 30% 金币10

if (random < 30) {

self.moneyCount = 10;

return YES;

}

break;

case FishModelImageViewTypeBWY://斑纹鱼 15% 金币20

if (random < 15) {

self.moneyCount = 20;

return YES;

}

break;

case FishModelImageViewTypeSHY://珊瑚鱼 5% 金币50

if (random < 5) {

self.moneyCount = 50;

return YES;

}

break;

case FishModelImageViewTypeSY://鲨鱼 1% 金币100

if (random < 1) {

self.moneyCount = 100;

return YES;

}

break;

}

self.moneyCount = 0;

return NO;

}

3.被钓到的鱼

初始化被钓到的鱼方法

//初始化钓到的小鱼

- (instancetype)initCatchedFishWithType:(FishModelImageViewType)type andDirection:(FishModelImageViewDirection)dir{

if (self = [super init]){

self.direction = dir;

[self initViewWithType:type andDuration:0.5];

//重制x,y坐标， 30为鱼钩的宽度，85为鱼钩的长度

self.x = (30 - self.width)/2.0;

self.y = 85 - 6;

if (dir == FishModelImageViewFromLeft){//从左往右，默认所有的鱼都是从右往左

CGAffineTransform transform = CGAffineTransformIdentity;

transform = CGAffineTransformScale(transform, -1, 1);//镜像

transform = CGAffineTransformRotate(transform, M_PI_2);//旋转90度

self.transform = transform;

}else {

self.transform = CGAffineTransformMakeRotation(M_PI_2);

}

return self;

}

当鱼被抓到后，执行上钩动画

//鱼被抓到后往上游

- (void)fishCatchedMoveUpWithOffsetX:(CGFloat) offsetX{

//钩沉到鱼塘的高度为45

//位移动画

CABasicAnimation *ani = [CABasicAnimation animationWithKeyPath:@"position"];

ani.duration = 0.7;

if (self.fishType == FishModelImageViewTypeSY){//鲨鱼由于太长，所以不进行上游动画了

ani.fromValue = http://www.gunmi.cn/v/[NSValue valueWithCGPoint:CGPointMake(offsetX,45 + _fishWidth/2.0)];

ani.toValue = http://www.gunmi.cn/v/[NSValue valueWithCGPoint:CGPointMake(_hookX, 45 + _fishWidth/2.0)];

}else {

ani.fromValue = http://www.gunmi.cn/v/[NSValue valueWithCGPoint:CGPointMake(offsetX, (_offsetY < 60) ? 45 + _fishWidth/2.0 : _offsetY)];//离钩子近的话则不进行动画

ani.toValue = http://www.gunmi.cn/v/[NSValue valueWithCGPoint:CGPointMake(_hookX, 45 + _fishWidth/2.0)];

}

ani.delegate = self;

//设置这两句动画结束会停止在结束位置

[ani setValue:kFishCatchedMoveUpValue forKey:kFishCatchedMoveUpKey];

[self.layer addAnimation:ani forKey:kFishCatchedMoveUpKey];

}

鱼上游动画结束后将翻转的鱼复位，然后执行代理将钓到的鱼通过代理传递出去

#pragma mark - CAAnimationDelegate

- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{

if (flag){

if ([[anim valueForKey:kFishCatchedMoveUpKey] isEqualToString:kFishCatchedMoveUpValue]){//鱼上游

if (self.direction == FishModelImageViewFromLeft){

CGAffineTransform transform = CGAffineTransformIdentity;

transform = CGAffineTransformScale(transform, -1, 1);//镜像

transform = CGAffineTransformRotate(transform, 0);//旋转90度

self.transform = transform;

}else {

self.transform = CGAffineTransformMakeRotation(0);

}

if ([self.delegate respondsToSelector:@selector(catchTheFishWithType:andDirection:andWinCount:)]){

[self.delegate catchTheFishWithType:self.fishType andDirection:self.direction andWinCount:self.moneyCount];

}

金币动画&&加分动画

金币动画可以参考我的这篇文章：iOS 金币入袋(收金币)动画

加分动画比较简单，一个位移加透明度的组合动画实现，具体可看代码

钓鱼View

这是实现界面了，本来是写在VC里的，后来发现也能提取出来，所有就提取出来了，在调用时非常简单，像正常View一样初始化后添加到主View上即可，在viewDidDisappear中讲资源释放掉即可。

- (void)viewDidLoad {

[super viewDidLoad];

_fishView = [[FishingView alloc] initWithFrame:self.view.bounds];

[self.view addSubview:_fishView];

}

- (void)viewDidDisappear:(BOOL)animated{

[super viewWillDisappear:animated];

[_fishView removeFishViewResource];

}

1.初始化鱼钩

初始化鱼钩

讲鱼钩摆动的角度通过代理传到本界面

#pragma mark - 鱼钩

- (void)initHookView{

_fishHookView = [[FishHookView alloc] initWithFrame:CGRectMake((ScreenWidth - 30)/2.0, 5, 30, 85)];

__weak typeof (self) weakSelf = self;

_fishHookView.angleBlock = ^(CGFloat angle) {

weakSelf.angle = angle;

};

[self addSubview:_fishHookView];

UIImageView *yuGanImageView = [[UIImageView alloc] initWithFrame:CGRectMake(ScreenWidth/2.0 - 2, 0, ScreenWidth/2.0, 50)];

yuGanImageView.image = [UIImage imageNamed:@"fish_gan_tong"];

[self addSubview:yuGanImageView];

}

下钩动画:鱼塘增加了点击手势，点击后执行钓鱼动作，暂停鱼钩摆动计时器，下钩动画结束后发送通知高速鱼模块可以上钩了，并将鱼钩的底部中心坐标传递过去，鱼线用CAShapeLayer绘制，并执行strokeEnd动画

//钓鱼动作

- (void)fishBtnAction{

if (self.fishHookState != FishHookStateShake) return; //不是摇摆状态不可出杆

[self.fishHookView hookTimerPause];//暂停鱼钩的计时器

double degree = _angle*180/M_PI;//度数

double rate = tan(_angle);//比列

DLog(@"degree:%f---rate:%f",degree,rate);

//计算出来线终点x的位置 , 钩到水里的深度不变，即y是固定的

_lineOffsetX = ScreenWidth/2.0 - (FishLineHeigth)*rate;

//钩子底部xy值

_hookBottomX = ScreenWidth/2.0 - (FishLineHeigth + FishHookHeight)*rate;

_hookBottomY = FishLineHeigth + FishHookHeight;

//动画时间

double aniDuration = [self hookOutOfRiver] ? 0.5 : 1;

//绘制路径

UIBezierPath *path = [UIBezierPath bezierPath];

[path moveToPoint:CGPointMake(ScreenWidth/2.0 ,5)];

[path addLineToPoint:CGPointMake(_lineOffsetX, FishLineHeigth)];

//图形设置

_linePathLayer = [CAShapeLayer layer];

_linePathLayer.frame = self.bounds;

_linePathLayer.path = path.CGPath;

_linePathLayer.strokeColor = [HEXCOLOR(0x9e664a) CGColor];

_linePathLayer.fillColor = nil;

_linePathLayer.lineWidth = 3.0f;

_linePathLayer.lineJoin = kCALineJoinBevel;

[self.layer addSublayer:_linePathLayer];

//下钩动画

CAKeyframeAnimation *ani = [CAKeyframeAnimation animationWithKeyPath:@"strokeEnd"];

ani.duration = aniDuration;

ani.values = @[@0,@0.8,@1];

ani.keyTimes = @[@0,@0.6,@1];

ani.delegate = self;

[ani setValue:kLineDownAnimationValue forKey:kLineDownAnimationKey];

[_linePathLayer addAnimation:ani forKey:kLineDownAnimationKey];

//位移动画

_hookAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];

//移动路径

CGFloat tempOffsetX = ScreenWidth/2.0 - (FishLineHeigth*0.8)*rate;

NSValue *p1 = [NSValue valueWithCGPoint:CGPointMake(ScreenWidth/2.0 ,5)];

NSValue *p2 = [NSValue valueWithCGPoint:CGPointMake(tempOffsetX, FishLineHeigth*0.8)];

NSValue *p3 = [NSValue valueWithCGPoint:CGPointMake(_lineOffsetX, FishLineHeigth)];

_hookAnimation.duration = aniDuration;

_hookAnimation.values = @[p1,p2,p3];

_hookAnimation.keyTimes = @[@0,@0.7,@1];//动画分段时间

//设置这两句动画结束会停止在结束位置

_hookAnimation.removedOnCompletion = NO;

_hookAnimation.fillMode=kCAFillModeForwards;

[_fishHookView.layer addAnimation:_hookAnimation forKey:@"goukey"];

}

钓鱼动作：下钩动画结束后计时器打开，执行此方法；倒计时为最后一秒时鱼不可上钩（鱼上钩动画0.7s,要留上钩动画的时间）；计时器为0时发送不可垂钓通知告诉鱼模块不可上钩了，并执行上钩动画。

//钩子停在底部

- (void)hookStop:(NSTimer *)timer{

_stopDuration-=1;

//最后一秒不可上钩

if (_stopDuration == 1){

//发送不可垂钓的通知

self.fishHookState = FishHookStateUp;

[[NSNotificationCenter defaultCenter] postNotificationName:NotificationFishHookMove object:nil];

}

if (_stopDuration <= 0){

//关闭计时器

[timer setFireDate:[NSDate distantFuture]];

UIBezierPath *path = [UIBezierPath bezierPath];

[path moveToPoint:CGPointMake(_lineOffsetX, FishLineHeigth)];

[path addLineToPoint:CGPointMake(ScreenWidth/2.0 ,5)];

_linePathLayer.path = path.CGPath;

//动画时间

double aniDuration = [self hookOutOfRiver] ? 0.5 : 1;

//上钩

CABasicAnimation *ani = [CABasicAnimation animationWithKeyPath:@"strokeStart"];

ani.duration = aniDuration;

ani.fromValue = http://www.gunmi.cn/v/[NSNumber numberWithFloat:0];

ani.toValue = http://www.gunmi.cn/v/[NSNumber numberWithFloat:1];

ani.delegate = self;

ani.removedOnCompletion = NO;

ani.fillMode=kCAFillModeForwards;

[ani setValue:kLineUpAnimationValue forKey:kLineUpAnimationKey];

[_linePathLayer addAnimation:ani forKey:kLineUpAnimationKey];

[_fishHookView.layer removeAllAnimations];

NSValue *p1 = [NSValue valueWithCGPoint:CGPointMake(ScreenWidth/2.0 ,5)];

NSValue *p2 = [NSValue valueWithCGPoint:CGPointMake(_lineOffsetX, FishLineHeigth)];

_hookAnimation.duration = aniDuration;

_hookAnimation.values = @[p2,p1];

_hookAnimation.keyTimes = @[@0,@1];

[_fishHookView.layer addAnimation:_hookAnimation forKey:@"goukey"];

}

金币动画&加分动画

下钩动画开始，总金币减少10个

上钩动画开始，发送不可垂钓通知，鱼钩状态为上钩状态

如果有捉到鱼（根据鱼模块代理是否执行判断是否捉到），执行金币动画和加分动画

下钩动画结束，发送可以垂钓的通知给鱼模块，并将鱼钩坐标传递过去，开启上钩的计时器

上钩动画结束，更改鱼钩状态，移除一些View，鱼钩继续摆动

#pragma mark - CAAnimationDelegate 动画代理

//动画开始

- (void)animationDidStart:(CAAnimation *)anim{

//下钩动画开始

if ([[anim valueForKey:kLineDownAnimationKey] isEqualToString:kLineDownAnimationValue]){

self.fishHookState = FishHookStateDown;//下钩状态

//钱数

self.moneyLabel.text = [NSString stringWithFormat:@"%d", _totalMoney-=10];

self.winMoney = 0;

}else if ([[anim valueForKey:kLineUpAnimationKey] isEqualToString:kLineUpAnimationValue]){//上钩动画开始

self.fishHookState = FishHookStateUp;//上钩状态

[[NSNotificationCenter defaultCenter] postNotificationName:NotificationFishHookMove object:nil];

}

if (self.isCatched){//钓到鱼后落金币

HHShootButton *button = [[HHShootButton alloc] initWithFrame:CGRectMake(_lineOffsetX, 0, 10, 10) andEndPoint:CGPointMake(10, 200)];

button.setting.iconImage = [UIImage imageNamed:@"coin"];

button.setting.animationType = ShootButtonAnimationTypeLine;

[self.bgImageView addSubview:button];

[self bringSubviewToFront:button];

[button startAnimation];

HHWinMoneyLabel *winLabel = [[HHWinMoneyLabel alloc] initWithFrame:CGRectMake(_lineOffsetX - 100/2, ScreenFullHeight - FishSeaHeight, 100, 30)];

winLabel.text = [NSString stringWithFormat:@"+%d",_winMoney];

[self addSubview:winLabel];

self.isCatched = !self.isCatched;

//金币总数

self.moneyLabel.text = [NSString stringWithFormat:@"%d", _totalMoney+=self.winMoney];

}

//动画结束

- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{

if (flag){

if ([[anim valueForKey:kLineDownAnimationKey] isEqualToString:kLineDownAnimationValue]){//下钩动画结束

self.fishHookState = FishHookStateStop;//垂钓状态

//钩的位置

NSDictionary *dic = @{@"offsetX":[NSString stringWithFormat:@"%.2f",_hookBottomX],@"offsetY":[NSString stringWithFormat:@"%.2f",_hookBottomY]};

//发送可以垂钓的通知,钩的位置传过去

[[NSNotificationCenter defaultCenter] postNotificationName:NotificationFishHookStop object:nil userInfo:dic];

_stopDuration = [self hookOutOfRiver] ? 1 : arc4random()%3 + 3; //默认时间[3,5),抛到岸上1s

//开启上钩定时器

[_fishTimer setFireDate:[NSDate distantPast]];

}else if ([[anim valueForKey:kLineUpAnimationKey] isEqualToString:kLineUpAnimationValue]){//上钩动画结束

self.fishHookState = FishHookStateShake;//摇摆状态

[_linePathLayer removeFromSuperlayer];

[_fishHookView hoolTimerGoOn];//鱼钩计时器继续

_catchedHeight = 0;

//移除钓上来的鱼

[self removeTheCatchedFishes];

}

鱼模块的代理方法

创建一个被钓到的鱼，加在鱼钩上，这样便可和鱼钩一起执行上钩动画了

#pragma mark - FishModelImageViewDelegate 钓到鱼后的代理

- (void)catchTheFishWithType:(FishModelImageViewType)type andDirection:(FishModelImageViewDirection)dir andWinCount:(int)count{

self.isCatched = YES;

FishModelImageView *fishImageView = [[FishModelImageView alloc] initCatchedFishWithType:type andDirection:dir];

[self.fishHookView addSubview:fishImageView];

fishImageView.y = fishImageView.y + _catchedHeight;

_catchedHeight += 8;//每钓到一个y坐标往下移

//赢得钱数

self.winMoney += count;

}

2.初始化鱼塘

简单的创建鱼背景并添加点击手势

3.初始化鱼

通过for循环可以创建出多个某种鱼

//小黄鱼

for (int i = 0; i < 8; i++){

FishModelImageView *model1 = [[FishModelImageView alloc] initCanCatchFishWithType:FishModelImageViewTypeXHY andDirection: (i%2 == 0) ? FishModelImageViewFromRight : FishModelImageViewFromLeft];

model1.delegate = self;

[self.bgImageView addSubview:model1];

}

4.资源移除

由于计时器不销毁会造成循环引用，导致内存泄漏，所以必须手动移除他，还有动画如果执行了代理，并且设置了结束后停留在结束位置，也会得不到释放，所以都要手动释放资源

- (void)removeFishViewResource{

//解决鱼钩上钩动画循环引用的问题

_linePathLayer = nil;

//钓鱼计时器关闭

[_fishTimer invalidate];

_fishTimer = nil;

//释放鱼钩的计时器

[self.fishHookView hoolTimerInvalidate];

//发送通知释放小鱼资源

[[NSNotificationCenter defaultCenter] postNotificationName:NotificationRemoveFishModelTimer object:nil];

}

总结

至此，本游戏已经完成了，写的比较多，也比较乱，有什么不好的地方欢迎批评指正，希望对大伙有所帮助吧，本demo地址传送门。