iOS SpriteKit runAction and updating count?

[trey5498]

I am currently attempting to complete a school project that uses SpriteKit. Since we are not given much time we were asked to create or modify the existing one from the book (Archer hitting balloons). I have successfully created a score hud display and I want to add the balls left to drop.

Here is what is in the book,

SKAction *releaseBalls = [SKAction sequence:@[[SKAction performSelector:@selector(createBallNode) onTarget:self], [SKAction waitForDuration:1]]];

    [self runAction: [SKAction repeatAction:releaseBalls count:self.ballCount] completion:^{
        [self gameOver];
    }];

What I am trying:

_ballsLeft = 40;
while (_ballsLeft <0)
{
     [self runAction:releaseBalls completion:^{
        [self gameOver];
    }];
    _ballsLeft--;
    _ballsLeftLabel.text = [NSString stringWithFormat:@"Balls Left: %04d", _ballLeft];
}

I am sure there is a better way to accomplish this, especially since mine does update or drop any balls.

Can anyone help?

 

[chown33]

What I am trying:

[COLOR="Red"]_ballsLeft = 40;
while (_ballsLeft <0)
[/COLOR]{
     [self runAction:releaseBalls completion:^{
        [self gameOver];
    }];
    _ballsLeft--;
    _ballsLeftLabel.text = [NSString stringWithFormat:@"Balls Left: %04d", _ballLeft];
}

I am sure there is a better way to accomplish this, especially since mine does update or drop any balls.

Can anyone help?

Think very carefully about what the red-hilited statements mean. Pay particular attention to the condition of the 'while'. Step through it using pencil and paper if necessary.

 

[trey5498]

Think very carefully about what the red-hilited statements mean. Pay particular attention to the condition of the 'while'. Step through it using pencil and paper if necessary.

Sorry that was a typo supposed to be while (_ballsLeft > 0).