developing apps for IOS---Stanford CS193p---Introduction and MVC--1

//
//  Card.h
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//

//.h is your public API .m includes @interface (is private) and implementation
#import <Foundation/Foundation.h>
//ios7 change to  @import Foundation but always support the old


@interface Card : NSObject
//superclass,NSObject is the root class of every class

@property (strong,nonatomic) NSString *contents;//what‘s on the card.
//in oc all objects live in the heap, and we have pointers to them
//oc will manage all that memory for you. create and free.
//in oc you can send messages to nil pointer,
//and if it has return it will return nil
//nonatomic is not thread safe
//strong and weak.every pointer must be either strong or weak.
//property will implemented setter and getter for us.

@property (nonatomic,getter=isChosen) BOOL chosen;//rename
@property (nonatomic,getter=isMatched) BOOL matched;//rename


//- (int)match:(Card *)card;//don‘t match=0 just depends on subclass playingCard
- (int)match:(NSArray*)onterCards;//dont miss the star*





@end

//
//  Deck.h
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "Card.h"


@interface Deck : NSObject

- (void)addCard:(Card *)card atTop:(BOOL)atTop;
- (void)addCard:(Card *)card;
- (Card *)drawRandomCard;
@end

//
//  Deck.m
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//
//card and deck is genetic not only for 扑克牌

#import "Deck.h"

@interface Deck ()
@property (strong,nonatomic) NSMutableArray *cards; //of card
@end

@implementation Deck

- (NSMutableArray *) cards
{
    //lazy instancilize
    if (!_cards) {
        _cards = [[NSMutableArray alloc]init];
    }
    return _cards;
}

- (void)addCard:(Card *)card atTop:(BOOL)atTop
{
    if(atTop){
        [self.cards insertObject:card atIndex:0];
    }else{
        [self.cards addObject:card];
    }
}

- (void)addCard:(Card *)card
{
    [self addCard:card atTop:NO];
}

- (Card *) drawRandomCard
{
    Card *randomCard = nil;
    
    if ([self.cards count]) {
        //remove if the mutableNumber is 0 then will ...
        unsigned index = arc4random() % [self.cards count];
        randomCard = self.cards[index];
        [self.cards removeObjectAtIndex:index];
    }
    
    return randomCard;
}




@end

//
//  PlayingCard.h
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//

//card is genetic but playingcard is specify 扑克牌
#import "Card.h"

@interface PlayingCard : Card

@property (strong,nonatomic)NSString *suit;
@property (nonatomic) NSUInteger rank;

+ (NSArray *)validSuits;
+ (NSUInteger)maxRank;




@end

//
//  PlayingCard.m
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//

#import "PlayingCard.h"

@implementation PlayingCard

@synthesize suit = _suit;

- (NSString *)contents{
    NSArray *rankStrings = [PlayingCard rankStrings];
    //the blue @ is call the array alloc and init
    return [rankStrings[self.rank] stringByAppendingString:self.suit];
}

+ (NSArray *)validSuits{
    return @[@"♣?",@"♥?",@"♦?",@"♠?"];
}

- (void) setSuit:(NSString *)suit{
    if([[PlayingCard validSuits] containsObject:suit])
    {
        _suit = suit;
    }
}

+ (NSArray *)rankStrings{
    return @[@"?",@"A",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",@"J",@"Q",@"K"];
}

+ (NSUInteger) maxRank{
    return [[self rankStrings]count]-1;
}

- (void) setRank:(NSUInteger)rank{
    if (rank<=[PlayingCard maxRank]) {
        _rank = rank;
    }
}



@end

//
// PlayingCardDeck.h
// Machismo
//
// Created by 一棋王 on 15-3-12.
// Copyright (c) 2015年 melody5417. All rights reserved.
//

#import "Deck.h"

@interface PlayingCardDeck : Deck

@end

//
//  PlayingCardDeck.m
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//  dot notaion is only for property setter and getter.

 #import "PlayingCardDeck.h" 
#import "PlayingCard.h" 
@implementation PlayingCardDeck //alloc and init always be company never call one of them only and they call only once 
//因为不是总返回一个类型 可能是superclass 返回一个对象 具有相同类类型 just use here 
- (instancetype) init{ self = [super init]; if (self) { 
//遍历所有suit and rank and addobject 
for (NSString* suit in [PlayingCard validSuits]) {
 for (NSUInteger rank = 1; 
rank<=[PlayingCard maxRank]; 
rank++) {
 PlayingCard *card = [[PlayingCard alloc]init]; 
card.rank = rank; 
card.suit = suit; 
[self addCard:card];

            }
        }
    }
    return self;
}
@end

//
//  ViewController.h
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "Card.h"
#import "Deck.h"
#import "PlayingCard.h"
#import "PlayingCardDeck.h"


@interface ViewController : UIViewController


@end

//
//  ViewController.m
//  Machismo
//
//  Created by 一棋王 on 15-3-12.
//  Copyright (c) 2015年 melody5417. All rights reserved.
//

#import "ViewController.h"


@interface ViewController ()//private
@property (weak, nonatomic) IBOutlet UILabel *flipsLable;
@property (nonatomic) int flipCount;

@property (strong,nonatomic) Deck *deck;
@end

@implementation ViewController

- (void)setFlipCount:(int)flipCount
{
    _flipCount = flipCount;
    self.flipsLable.text = [NSString stringWithFormat:@"flips: %d",self.flipCount];
    //getter and setter another function to keep UI sync with controller
    NSLog(@"flipCount = %d",self.flipCount);
}

//IBAction is typedef void, just to tell which method are target action.

- (IBAction)touchCardButton:(UIButton *)sender
{
    if ([sender.currentTitle length]) {
        [sender setBackgroundImage:[UIImage imageNamed:@"CardBack"] forState:UIControlStateNormal];
        [sender setTitle:@"" forState:UIControlStateNormal];
        self.flipCount++;
    }else{
        Card *card = [self.deck drawRandomCard];
        if(card)
        {
            [sender setBackgroundImage:[UIImage imageNamed:@"CardFront"]
                          forState:UIControlStateNormal];
            [sender setTitle:@"" forState:UIControlStateNormal];                
[sender setTitle:card.contents forState:UIControlStateNormal];
            self.flipCount++;
        }
    }
    //self.flipCount++;// 调用getter and setter
}

@synthesize deck = _deck;

- (Deck *)deck
{
    //lazy instantiation
    if (!_deck) {
        _deck = [self createDeck];
    }
    return _deck;
}

- (Deck *)createDeck
{
    return [[PlayingCardDeck alloc]init];
}

@end