CODEWITHSUNDEEP
iosobjective-csprite-kit
Jack
Jack

Reputation: 275

Touches turn on and off light

I'm trying to set alpha of a SKNode every time it is clicked either to 0 or 1. My code currently turns it off but won't turn it back on. Any idea why? 

- (void)handleTouchedPoint:(CGPoint)touchedPoint {
    touchedNode = [self nodeAtPoint:touchedPoint];

    // Detects which node was touched by utilizing names.
    if ([touchedNode.name isEqualToString:@"play"]) {
        isOnPlay = true;
        NSLog(@"Touched play");
    }
    if ([touchedNode.name isEqualToString:@"light1"]) {
        //NSLog(@"%.2f", touchedNode.alpha);
        if(touchedNode.alpha != 0.0)
        {
            NSLog(@"Off");
            touchedNode.alpha = 0.0;
            //[touchedNode setAlpha:0.0];
        }
        else{
            NSLog(@"On");
            touchedNode.alpha = 1.0;
            //[touchedNode setAlpha:1.0];
        }
        NSLog(@"Touched light");
    }
}

Upvotes: 0

Views: 48

Answers (1)

drekka
drekka

Reputation: 21893

You might be running into the famous float rounding issue. Use debug and check the values. The alpha might not be exactly zero.

Upvotes: 1

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