Question

我无法使用我的SKSpriteNode playAgainButton重启我的游戏，其名称属性为＆＃34; play＆＃34;。游戏结束方法工作正常，但我无法在触摸开始功能重启游戏。以下是各自的功能。任何帮助都会很棒，我已经在这个问题上停留了一段时间，并在doc中尝试了几种不同的方法，包括 - （CGPoint）convertPoint：（CGPoint）指向fromNode：（SKNode *）节点;和 - （NSArray *）nodesAtPoint：（CGPoint）p;

这是我在触摸开始功能中的代码：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

//    Jumping fucntionality

    [mainChar.physicsBody applyForce:CGVectorMake(0, 75000)];

//    Play Again Button functionality

    UITouch *touch = [touches anyObject];
    CGPoint location = [touch locationInView:self.view];
    SKNode *node;
    NSArray *nodes = [node nodesAtPoint:location];

    for (node in nodes) {

    if ([node.name isEqual: @"play"]){
        score = 0;
        [node removeFromParent];
        [self.yourScoreLabel removeFromParent];
        [self.finalScoreLabel removeFromParent];
        self.scene.view.paused = NO;
        scoreLabel.text = [NSString stringWithFormat:@"Score %ld", (long)score];
        [self startTimers];
    }
    }
}

gameOver功能：

-(void)gameOver{

    self.scene.view.paused = YES;

    [planetTimer invalidate];
    [asteroidTimer invalidate];

    self.yourScoreLabel = [SKLabelNode new];
    self.yourScoreLabel.position = CGPointMake(0, 200);
    self.yourScoreLabel.fontSize = 100;
    self.yourScoreLabel.zPosition = 1;
    self.yourScoreLabel.text = @"Your score:";
    [self addChild:self.yourScoreLabel];

    self.finalScoreLabel = [SKLabelNode new];
    self.finalScoreLabel.position = CGPointMake(0, 0);
    self.finalScoreLabel.fontSize = 200;
    self.finalScoreLabel.zPosition =1;
    self.finalScoreLabel.text = [NSString stringWithFormat:@"%ld", (long)score];
    [self addChild:self.finalScoreLabel];

    SKSpriteNode * playAgainButton = [SKSpriteNode spriteNodeWithImageNamed:@"play"];
    playAgainButton.position = CGPointMake(0, -200);
    playAgainButton.name = @"play";
    playAgainButton.zPosition = 1;
    [self addChild:playAgainButton];
}

谢谢。

Answer 1

您正在使用[touch locationInView:view]，它将返回视图坐标系中的位置。在SpriteKit中，您需要处理场景的坐标系，它可能处于不同的间隔。要获取场景中的位置，只需执行CGPoint location = [touch locationInNode:self];

即可

SpriteKit / Obj-C -Restarting游戏接触开始于nodesatPoint

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