Remove SKNode Tree in touchesBegan

Question

EDIT: I must have just been on crack earlier. Clean and another rebuild seems to have fixed it.

I'm hoping a second set of eye on this will tell me what I'm missing. I have SpriteKit game scene (iOS 7.1) with a couple of "HUD" SKSpriteNodes... mute sounds button, show last score, etc. I'm detecting if they're touched in touchesBegan:withEvent.

When the node is touched a corresponding method is called to display it's content (this part is working fine). They aren't SKScenes just a SKSpriteNode image with some labels over top. One of the labels is a Back Button which I want to close the node/remove it from parent. This isn't working as I expect it should.

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

    UITouch *touch = [touches anyObject];
    CGPoint touchLocation = [touch locationInNode:self];
    SKNode *touchedNode = [self nodeAtPoint:touchLocation];

    // --- Scores

    if ([touchedNode.name isEqualToString:@"scoresButton"]) {
        [self showScoresBoard];
    }

    // --- Back

    if ([touchedNode.name isEqualToString:@"backLabel"]) {
        SKNode *chalkboard = [self childNodeWithName:@"chalkboard"];
        NSLog(@"Touched: %@", touchedNode.name); // backLabel shows in display
        // chalkboard.alpha = 0.0; // Oddly, this works :/
        [chalkboard removeFromParent]; // This does not work ?
    }
}

My showScoresBoard is pretty standard stuff...

-(void)showScoresBoard {
    // Root Node
    SKNode *chalkboard = [SKNode node];
    chalkboard.name = @"chalkboard";

    // [Background, labels...]

    // Back Label
    SKLabelNode *backLabel = [SKLabelNode labelNodeWithFontNamed:@"Chalkduster"];

    backLabel.name = @"backLabel";
    backLabel.text = @"Back";
    backLabel.fontColor = [UIColor whiteColor];
    backLabel.fontSize = 22;
    backLabel.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame) - 165);
    backLabel.zPosition = 150;

    [chalkboard addChild:backLabel];

    [self addChild:chalkboard];
}

So I guess my question is, why isn't "[chalkboard removeFromParent]" doing anything? What am I missing there? It must being seeing the SKNode correctly as changing it's alpha property works.

Any thoughts?

Does any kind of error occur or does this method not get called at all? — ZeMoon
No errors... and if I put an NSLog in before the removeFromParent does produce output so I know it's making it there. — Chris Sprague

Chris Sprague Chris Sprague · Accepted Answer · 2014-07-18T01:04:38

Seriously not sure exactly why it's working now. Only thing I did before revisiting the issue is do a clean and build after working on another section of the project. Must have been some stray bits that the clean took care of.

Remove SKNode Tree in touchesBegan

2 Answers