タイルマップの作り方

CCTMXTiledMap *map;
CCTMXLayer *bgLayer;

@property (nonatomic,retain)CCTMXTiledMap *map;
@property (nonatomic,retain)CCTMXLayer *bgLayer;

@synthesize map;
@synthesize bgLayer;

self.map = [CCTMXTiledMap tiledMapWithTMXFile:@"theMap.tmx"];
self.bgLayer = [map layerNameed:@"bg"];

[self addChilde:map z:-1];




self.map = nil;
self.bgLayer = nil;