Question

是否有办法重新分配变量以在for循环中为其提供不同的内存地址

我正在使用ARC

代码的主要部分在这里;

- (void) deal:(BOOL)isDefault
{
    player = [[Player alloc] init];
    appDel = [[BlackjackAppDelegate alloc] init];
    appDel.playersArray = [[NSMutableArray alloc] init];
    appDel.discardPile = [[NSMutableArray alloc] init];

    // Initial Deal

    int i; // Current Card for player
    int j; // Current Player

    if (isDefault)
    {
        startingCardCount = 7;
        numberOfPlayers = 4;
    }

    for (int temp = 0; temp < numberOfPlayers; temp++)
    {
        [self addPlayersWithNumber:temp];
    }

    // Loops through number of cards supposed to be in hand (if default settings: use 7 cards)
    for (i = 0; i < startingCardCount; i++)
    {
        // Loop through number of players (if default settings: use 4 players)
        for (j = 0; j < numberOfPlayers; j++)
        {
            //Player *tempPlayer = [appDel.playersArray objectAtIndex:j];
            Card *card = [Card generateCardWithAppDel:appDel];
            Player *tempPlayer = [appDel.playersArray objectAtIndex:j];

            [tempPlayer.hand addObject:card];
            [self refreshPlayerIndex:j withPlayer:tempPlayer];
        }
    }
}
- (void) addPlayersWithNumber:(NSInteger)playerNumber
{
    // THIS VARIABLE I WANT TO "REALLOCATE" EACH TIME THIS METHOD IS CALLED
    Player *tempPlayer = [[Player alloc] init];
    tempPlayer.number = playerNumber;

    [appDel.playersArray addObject:player];
}

感谢你能给我的任何帮助，我真的需要修复它，我正在添加一个数组并在交易方法的不同部分进行操作（如图所示）

编辑：

Player.h：

//
//  Player.h
//  Blackjack
//
//  Created by Zach Ross-Clyne on 02/03/2013.
//  Copyright (c) 2013 Avicode. All rights reserved.
//

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

@interface Player : NSObject
{
    NSInteger type;
    NSInteger number;
    NSMutableArray *hand;
}

@property (nonatomic, strong) NSMutableArray *hand;
@property (nonatomic) NSInteger type;
@property (nonatomic) NSInteger number;

@end

Player.m

//
//  Player.m
//  Blackjack
//
//  Created by Zach Ross-Clyne on 02/03/2013.
//  Copyright (c) 2013 Avicode. All rights reserved.
//

#import "Player.h"

@implementation Player

@synthesize number, hand, type;

- (id) init
{
    hand = [[NSMutableArray alloc] init];
    return self;
}

@end

Answer 1

我认为你误解了一个错误。请看以下内容：

Player *tempPlayer = [[Player alloc] init];
tempPlayer.number = playerNumber;

[appDel.playersArray addObject:player];

你在做什么：

创建播放器tempPlayer;
将实例变量player添加到playersArray

因此，您创建的每个tempPlayer都是唯一的，并且它们都不会被放入您的数组中。

Answer 2

tempPlayer.number = playerNumber;
[appDel.playersArray addObject:player];

应该是：

tempPlayer.number = playerNumber;
[appDel.playersArray addObject:tempPlayer];

Obj C - 每次调用方法时给出可变的新内存地址

2 个答案: