Scene not being presented in SpriteKit

Question

I'm making a game using SpriteKit. I'm checking if the player is dead in the update method, like this:

-(void)update:(CFTimeInterval)currentTime
{
    if (self.player.dead) {
        [self gameOver];
    }
}

The gameOver method is the following:

-(void)gameOver {
    SKView * skView = (SKView *)self.view;
    GameOverScene *gameOver = [GameOverScene sceneWithSize:skView.bounds.size];
    gameOver.scaleMode = SKSceneScaleModeAspectFill;
    [skView presentScene:gameOver transition:[SKTransition doorsOpenHorizontalWithDuration:1.0]];
}

For some reason the GameOver scene is not being presented, instead the update method of the current screen keeps getting called. What am I doing wrong?

Answer 1

I think the problem may be that the self.player.dead flag keeps evaluating to YES over and over again inside the update method, calling [self gameOver] numerous times and never actually completing the transition due to the 1 second duration; you could easily test this with a breakpoint or logging. Try calling self.player.dead = NO in the -(void)gameOver method before you present the new scene.

Answer 2

Try the following and see if it makes a difference:

- (void)gameOver {
    SKScene *gameOver = [[GameOverScene alloc] initWithSize:self.size];
    SKTransition *doors = [SKTransition doorsOpenVerticalWithDuration:1.0];
    [self.view presentScene:gameOver transition:doors];
}

Also, make sure that gameOver is being called from the current scene.