SpriteKit 中的场景没有改变

Question

我已经创建了一个游戏，现在我想添加一个开始屏幕，我想在其中运行一个视频，之后会有一个带有开始按钮的屏幕，我在互联网上搜索过但找不到方法，试了很多东西，最新的代码是：

#import "FirstScreen.h"
#import "GameScene.h"
#import <MediaPlayer/MediaPlayer.h>

@implementation FirstScreen

-(id)initWithSize:(CGSize)size {
    if (self = [super initWithSize:size]) {
        NSURL *url =[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"Intro" ofType:@"mp4"]];
        _player = [[MPMoviePlayerController alloc] initWithContentURL:url];
        _player.view.frame = CGRectMake(0,0, 1024, 768);
        [self.view addSubview:_player.view];

        _player.shouldAutoplay = YES;
        [_player prepareToPlay];

        NSString *nextSceneButton;
        nextSceneButton = @"Start";

        SKLabelNode *myLabel = [SKLabelNode labelNodeWithFontNamed:@"Chalkduster"];

        myLabel.text = nextSceneButton;
        myLabel.fontSize = 30;
        myLabel.fontColor = [SKColor blackColor];
        myLabel.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame));
        myLabel.name = @"Start";

        [self addChild:myLabel];
    }
    return self;
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    /* Called when a touch begins */
    UITouch *touch = [touches anyObject];
    CGPoint location = [touch locationInNode:self];
    SKNode *node = [self nodeAtPoint:location];

    if ([node.name isEqualToString:@"Start"]) {
        SKTransition *reveal = [SKTransition fadeWithDuration:3];

        GameScene *scene = [GameScene sceneWithSize:self.view.bounds.size];
        scene.scaleMode = SKSceneScaleModeAspectFill;
        [self.view presentScene:scene transition:reveal];
    }
}

@end

应用程序刚刚启动并给出 SIGABRT 错误。你能告诉我怎么做吗？

Answer 1

您应该检查几项以确保一切正常：

检查文件名是否一切正常，查找空格或拼写错误等...
查看pathForResource是什么returns（打印出来）
看什么fileURLWithPathreturns
转到：Target -> Build Phases -> Copy Bundle Resources 并在那里添加 Intro.mp4 文件。如果该文件已添加，请将其删除，清理您的项目 Project->Clean，然后再次添加。构建项目并运行它。

SpriteKit 中的场景没有改变

Scene not changing in SpriteKit

ios

objective-c

sprite-kit

skscene