Question

I’m a beginner in Objective-C and also in the C language.

My code looks like:

- (IBAction)button:(id)sender {
    int randomproces = rand() % 3;
    switch (randomproces) {
        case 0:
            //do this
            break;
        case 1:
            //do this
            break;
        case 2:
            //do this
            break;
        default;
            break;
    }
}

Now I want to set something to another 3 buttons to make them correct or incorrect depending on a random situation.

- (IBAction)b1:(id)sender {
    //if case 0 then set it correct
    //else incorrect
}

- (IBAction)b2:(id)sender {
    //if case 1 then set it correct
    //else incorrect
}

// etc

How do I do this?

Answer 1

If I correctly understand your question, you want to do different things in the in the handlers for b1, b2 and b3 depending on a random value selected in the handler for button?

I that case the simplest is probably to make the random number variable in button global, and use that in the other three button handlers:

int randomprocess = -1;

- (IBAction)button:(id)sender {
    randomproces = rand() % 3;
    // Do other stuff if needed
}

- (IBAction)b1:(id)sender {
    if (randomprocess == 0) {
        // Do something
    } else {
        // Do something else
    }
}

- (IBAction)b2:(id)sender {
    if (randomprocess == 1) {
        // Do something
    } else {
        // Do something else
    }
}

- (IBAction)b3:(id)sender {
    if (randomprocess == 2) {
        // Do something
    } else {
        // Do something else
    }
}