Question

How do I save game state in iPhone game? I have it all in NSDictionary. Some say use NSUserDefaults but that seems meant for things like volume. I can t find any official sample code that uses game saves. What is the apple way for saving game state?

Answer 1

如果你只是想把该字典作为文件夹的标本,那将起到以下作用:

NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString* documentDir = [documentPaths objectAtIndex:0];
    NSString * savePath = [documentDir stringByAppendingPathComponent:@"save.plist"];
    [dict writeToFile: savePath atomically: YES];

Answer 2

It depends. NSUserDefaults are ok for a few or small things, but for larger things you might want to look at CoreData.

Answer 3

如果你使用核心数据管理所有贵国,那么你就能够节省费用并免费投入工作。这正是大多数用户使用的,也是其数据储存的原因。

从NSDictionary向核心数据的过渡是直截了当的,但需要了解核心数据是如何运作的,并界定你的计划。

NSUserDefaults是而不是,用于挽救像游戏状态这样的东西,它被用于挽救像环境这样的东西。

Answer 4

存档是为了节省国际海洋观测系统的物体图表。你们可以通过存档来恢复所挽救的完整状态。

Answer 5

http://developer.apple.com/library/ios/#documentation/coa/vis/foundation/Classes/NSKeyedArchiver_Class/Reference/Reference.html 较之<代码>NSUserDefaults更为灵活,但并非作为核心数据库的强大力量。

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