在我的卡片匹配游戏中：
- 我有一种检查在特定索引中翻转的卡片的方法。它基本上是应用程序中的整个逻辑。
- 我有另一种检查匹配的方法。
现在，我在视图控制器中创建了一个开关按钮，告诉控制器用户改变了“3”卡而不是基本模式（2张卡）的模式。
我的问题是，如果有超过2场比赛，我如何告诉控制器检查匹配方法..这让我发疯了请尝试帮助我解决这个问题。
我在控制器中也有一个updateUI方法，可以使匹配的卡逐渐消失，所以我需要确保它的行为相同。
以下代码显示了flipCardAtIndex方法，匹配方法＆amp;以相同的顺序查看控制器：
CardMatchingGame.m（最后一个方法是flipCardAtIndex）：
#import "CardMatchingGame.h"
#import "PlayingCardsDeck.h"
@interface CardMatchingGame()
@property (readwrite, nonatomic) int score;
@property (strong, nonatomic) NSMutableArray *cards;
@property (strong, nonatomic) NSString *notification;
@end
@implementation CardMatchingGame
-(NSMutableArray *) cards {
if (!_cards) _cards = [[NSMutableArray alloc] init];
return _cards;
}
-(id)initWithCardCount:(NSUInteger)count usingDeck:(Deck *)deck {
self = [super init];
if (self) {
for (int i = 0; i < count; i++) {
Card *card = [deck drawRandonCard];
if (!card) {
self = nil;
} else {
self.cards[i] = card;
}
}
}
return self;
}
-(Card *) cardAtIndex:(NSUInteger)index {
return (index < self.cards.count) ? self.cards[index] : nil;
}
#define FLIP_COST 1
#define MISMATCH_PENALTY 2
#define BONUS 4
-(void) flipCardAtIndex:(NSUInteger)index {
Card *card = [self cardAtIndex:index];
if (!card.isUnplayable) {
if (!card.isFaceUp) {
for (Card *otherCard in self.cards) {
if (otherCard.isFaceUp && !otherCard.isUnplayable) {
NSMutableArray *myCards = [[NSMutableArray alloc] init];
[myCards addObject:otherCard];
int matchScore = [card match:myCards];
if (matchScore) {
otherCard.unplayble = YES;
card.unplayble = YES;
self.notification = [NSString stringWithFormat:@"%@ & %@ match!", card.contents, otherCard.contents];
self.score += matchScore * BONUS;
} else {
otherCard.faceUp = NO;
self.score -= MISMATCH_PENALTY;
self.notification = [NSString stringWithFormat:@"%@ did not matched to %@", card.contents, otherCard.contents];
}
break;
}
}
self.score -= FLIP_COST;
}
card.faceUp = !card.isFaceUp;
}
}
@end
PlayingCards.m（仅限第一种方法，匹配方法）：
#import "PlayingCards.h"
@implementation PlayingCards
@synthesize suit = _suit;
//overriding the :match method of cards to give different acore if its only a suit match or a number match
-(int)match:(NSArray *)cardToMatch {
int score = 0;
for (int i = 0; i < cardToMatch.count; i++) {
PlayingCards *nextCard = cardToMatch[i];
if ([nextCard.suit isEqualToString:self.suit]) {
score += 1;
} else if (nextCard.rank == self.rank) {
score += 4;
}
}
return score;
}
我的视图控制器（最后一种方法是切换按钮的方法）：
#import "CardGameViewController.h"
#import "PlayingCardsDeck.h"
#import "CardMatchingGame.h"
@interface CardGameViewController ()
@property (weak, nonatomic) IBOutlet UILabel *flipsLabel;
@property (weak, nonatomic) IBOutlet UILabel *notificationLabel;
@property (weak, nonatomic) IBOutlet UILabel *scoreCounter;
@property (strong, nonatomic) IBOutletCollection(UIButton) NSArray *cardButtons;
@property (strong, nonatomic) CardMatchingGame *game;
@property (nonatomic) int flipsCount;
@property (nonatomic) NSNumber *mode;
//@property (weak, nonatomic) IBOutlet UISwitch *mySwitch;
@property (weak, nonatomic) IBOutlet UISwitch *mySwitch;
@end
@implementation CardGameViewController
@synthesize mode = _mode;
//creating the getter method that creates a new card game.
-(CardMatchingGame *) game {
if (!_game) _game = [[CardMatchingGame alloc] initWithCardCount:self.cardButtons.count usingDeck:[[PlayingCardsDeck alloc] init]];
return _game;
}
//creating a setter for the IBOutletCollection cardButtons
-(void) setCardButtons:(NSArray *)cardButtons {
_cardButtons = cardButtons;
[self updateUI];
}
//creating the setter for the flipCount property. Whick is setting the flipsLabel to the right text and adding the number of counts.
-(void) setFlipsCount:(int)flipsCount {
_flipsCount = flipsCount;
self.flipsLabel.text = [NSString stringWithFormat:@"Flips: %d", self.flipsCount];
}
-(void) updateUI {
for (UIButton *cardButton in self.cardButtons) {
Card *card = [self.game cardAtIndex:[self.cardButtons indexOfObject:cardButton]];
[cardButton setTitle:card.contents forState:UIControlStateSelected];
[cardButton setTitle:card.contents forState:UIControlStateSelected|UIControlStateDisabled];
cardButton.selected = card.isFaceUp;
cardButton.enabled = !card.unplayble;
if (card.unplayble) {
cardButton.alpha = 0.1;
}
//updating the score
self.scoreCounter.text = [NSString stringWithFormat:@"Score: %d", self.game.score];
//if notification in CardMatchingGame.m is no nil, it will be presented
if (self.game.notification) {
self.notificationLabel.text = self.game.notification;
}
}
}
//Here I created a method to flipCards when the card is selected, and give the user a random card from the deck each time he flips the card. After each flip i'm incrementing the flipCount setter by one.
- (IBAction)flipCard:(UIButton *)sender {
[self.game flipCardAtIndex:[self.cardButtons indexOfObject:sender] forMode:self.mode];
self.flipsCount++;
[self updateUI];
}
//sending an alert if the user clicked on new game button
- (IBAction)newGame:(UIButton *)sender {
UIAlertView* mes=[[UIAlertView alloc] initWithTitle:@"Are you sure..?" message:@"This will start a new game" delegate:self cancelButtonTitle:@"No" otherButtonTitles:@"Yes", nil];
[mes show];
}
//preforming an action according to the user choice for the alert yes/no to start a new game
- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
if (buttonIndex != [alertView cancelButtonIndex]) {
self.flipsCount = 0;
self.game = nil;
for (UIButton *button in self.cardButtons) {
Card *card = [self.game cardAtIndex:[self.cardButtons indexOfObject:button]];
card.unplayble = NO;
card.faceUp = NO;
button.alpha = 1;
}
self.notificationLabel.text = nil;
[self updateUI];
}
}
-(void) setMode:(NSNumber *)mode {
mode = _mode;
}
-(void) switchValueChange:(id)sender {
UISwitch *Switch = (UISwitch *) sender;
NSNumber *twoCards = [NSNumber numberWithInt:2];
NSNumber *threeCards = [NSNumber numberWithInt:3];
if (Switch.on) {
self.mode = twoCards;
}
else
{
self.mode = threeCards;
}
}
- (void)viewDidLoad
{
UISwitch *mySwitch;
[super viewDidLoad];
[mySwitch addTarget:self action:@selector(switchValueChange:) forControlEvents:UIControlEventValueChanged];
[self updateUI];
}
@end
答案 0 :(得分：0)
实际上，获取开关值很容易。您可以设置从交换机到viewController（CardGameViewController）的引用插座，并在视图控制器的viewDidLoad方法中添加方法以侦听对switch值的更改：
[mySwitch addTarget:self action:@selector(switchValueChange:) forControlEvents:UIControlEventValueChanged];
在CardGameViewController中添加一个名为NSNumber *mode的新属性并进行综合。
现在你可以在switchValueChanged方法中更新“模式”（我认为可能是一个实例变量）：
- (void)switchValueChange:(id)sender
{
UISwitch *switch = (UISwitch *) sender;
if (sender.on)
self.mode = 2;
else
self.mode = 3;
}
如果我的假设是正确的，那么通过“模式”你的意思是要匹配多少张牌，这是正确的吗？ 2表示，面对面时，2张牌应该是相同的，3表示3张牌应该是套装或号码匹配。
首先将您的PlayingCards中的匹配方法更改为此类（接受另一个名为mode的参数）（您可能还必须在其父类中更新相同的方法）：
//overriding the :match method of cards to give different acore if its only a suit match or a number match
-(int)match:(NSArray *)cardToMatch forMode:(NSNumber *) mode{
int score = 0;
int cardsMatched = 0;
for (int i = 0; i < cardToMatch.count; i++) {
PlayingCards *nextCard = cardToMatch[i];
if ([nextCard.suit isEqualToString:self.suit]) {
score += 1;
cardsMatched++;
} else if (nextCard.rank == self.rank) {
score += 4;
cardsMatched++;
}
if (cardsMatched >= [mode intValue])
break;
}
return score;
}
现在，在您的CardMatchingGame.m方法中，将flipCardAtIndex方法更改为此（接受另一个名为mode的参数）：
-(void) flipCardAtIndex:(NSUInteger)index forMode (NSNumber *mode) {
Card *card = [self cardAtIndex:index];
if (!card.isUnplayable) {
if (!card.isFaceUp) {
NSMutableArray *myFaceUpCards = [[NSMutableArray alloc] init];
// UPDATED: Loop through all the cards that are faced up and add them to an array first
for (Card *otherCard in self.cards) {
if (otherCard.isFaceUp && !otherCard.isUnplayable && orderCard != card) {
[myCards addObject:otherCard];
}
// UPDATED: Now call the method to do the match. The match method now takes an extra parameter
int matchScore = [card match:myCards forMode:mode];
if (matchScore) {
otherCard.unplayble = YES;
card.unplayble = YES;
self.notification = [NSString stringWithFormat:@"%@ & %@ match!", card.contents, otherCard.contents];
self.score += matchScore * BONUS;
} else {
otherCard.faceUp = NO;
self.score -= MISMATCH_PENALTY;
self.notification = [NSString stringWithFormat:@"%@ did not matched to %@", card.contents, otherCard.contents];
}
}
self.score -= FLIP_COST;
}
card.faceUp = !card.isFaceUp;
}
}
最后，将呼叫改为
[self.game flipCardAtIndex:[self.cardButtons indexOfObject:sender]];
在
- (IBAction)flipCard:(UIButton *)sender
CardGameViewController的方法
[self.game flipCardAtIndex:[self.cardButtons indexOfObject:sender] forMode:self.mode];
看看是否有意义。
答案 1 :(得分：0)
从.m类中删除@property (weak, nonatomic) IBOutlet UISwitch *mySwitch;。
相反，转到故事板，单击带有开关的控制器，然后单击右上方的“助理编辑器”按钮（看起来像一张脸）。它将打开CardGameViewController.h。现在右键单击storyoard上的开关视图，然后单击并从New Referencing Outlet拖动到CardViewController.h。这是您将开关引用到控制器的方式。
现在您在接口文件中有switch变量，转到您的实现文件（CardGameViewController.m）并合成变量：
@synthesize mySwitch = _mySwitch;
现在，将viewDidLoad方法更改为：
- (void)viewDidLoad
{
[super viewDidLoad];
[self.mySwitch addTarget:self action:@selector(switchValueChange:) forControlEvents:UIControlEventValueChanged];
[self updateUI];
}
还删除setMode方法。如果你正在合成模式变量，那么你不需要它。
立即试一试。你知道如何使用断点在xcode中调试吗？