iOS_SpriteKit_01_初识SpriteKit

////  GameViewController.m//  SpriteKit01////  Created by beyond on 15/12/28.//  Copyright (c) 2015年 beyond. All rights reserved.//#import "GameViewController.h"#import <SpriteKit/SpriteKit.h>#import "GameScene.h"// 这个是什么鬼???@implementation SKScene (Unarchive)// 分类方法: 根据文件名,从文件中解档 生成场景+ (instancetype)unarchiveFromFile:(NSString *)file {    /* Retrieve scene file path from the application bundle */    NSString *nodePath = [[NSBundle mainBundle] pathForResource:file ofType:@"sks"];    /* Unarchive the file to an SKScene object */    NSData *data = [NSData dataWithContentsOfFile:nodePath                                          options:NSDataReadingMappedIfSafe                                            error:nil];    NSKeyedUnarchiver *arch = [[NSKeyedUnarchiver alloc] initForReadingWithData:data];    [arch setClass:self forClassName:@"SKScene"];    SKScene *scene = [arch decodeObjectForKey:NSKeyedArchiveRootObjectKey];    [arch finishDecoding];        return scene;}@end@implementation GameViewController- (void)viewDidLoad{    [super viewDidLoad];    // xib里面class类型就是SKView    SKView * skView = (SKView *)self.view;    skView.showsFPS = YES;    skView.showsNodeCount = YES;        /* Sprite Kit applies additional optimizations to improve rendering performance */    skView.ignoresSiblingOrder = YES;        // 上面的分类方法: 根据文件名,从文件中解档 生成场景    GameScene *scene = [GameScene unarchiveFromFile:@"GameScene"];        scene.scaleMode = SKSceneScaleModeAspectFill;        // Present the scene.    [skView presentScene:scene];}#pragma mark - 横竖屏- (BOOL)shouldAutorotate{    return YES;}- (NSUInteger)supportedInterfaceOrientations{    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {        return UIInterfaceOrientationMaskAllButUpsideDown;    } else {        return UIInterfaceOrientationMaskAll;    }}#pragma mark - 状态条隐藏- (BOOL)prefersStatusBarHidden {    return YES;}@end