Data from data files is often loaded into a non-mutable, 'nested' structure of arrays and dictionaries. This non-mutable structure leaves the data un-editable. In this recipe, we will read in a nested JSON data structure and then recursively re-create the data using mutable data structures to allow the data to be edited.
Execute the following code:
#import "GameHelper.h"
//Implementation
@implementation Ch3_MutatingNestedMetadata
-(CCLayer*) runRecipe {
[super runRecipe];
//Load JSON data
NSString *fileName = @"data_to_mutate.json";
NSString *jsonString = [[[NSString alloc] initWithContentsOfFile:getActualPath(fileName) encoding:NSUTF8StringEncoding error:nil] autorelease];
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF32BigEndianStringEncoding];
NSDictionary *dict = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData...