Very quick if statement question.

flamingmongrel · 10-01-2004, 11:55 AM

Hi I have a very quick question about writing if statements.

When the user clicks a button I want h1 and h2 to either appear or dissapear depending on their current state, I can get just one to work (i.e. h1 on its own) but I don't know the correct syntax for two or even three variables. I've shown my code below, as you can see I thought a comma might work to separate the values but it doesn't.

code:



on (release) {

    if (h1,h2._visible) {

        h1,h2._visible = false;

    } else {

        h1,h2._visible = true;

    }

}

frozenfire89 · 10-01-2004, 12:06 PM

code:



on (release) {

if (h1._visibility && h2._visibility) {

h1._visibility, h2._visibility = false;

} else {

h1._visibility, h2._visibility = true;

}

}

flamingmongrel · 10-01-2004, 12:31 PM

That doesn't work mate. I assume you meant _visible instead of _visibility. Anyway I tried both methods and neither worked. Any more ideas on this one, I know its only a small thing, but I don't know the proper syntax in ActionScript.

frozenfire89 · 10-01-2004, 02:55 PM

code:



on (release) {

if (h1._visible ==  true && h2._visible == true) {

h1._visible, h2._visible = false;

} else {

h1._visible, h2._visible = true;

}

}

EDIT: Edited some of the posts in this thread to use as tags - jbum

jbum · 10-01-2004, 03:48 PM

In my version of flash (MX 2004) the following code does not work:

code:



// BROKEN!!

x,y = 5;

trace(x);

trace(y);

If you do the above, y will be equal to 5, but x will be undefined. This implies that the example shown above, also using a comma, will also not work.

The following does work, however:

code:



x = y = 5;

trace(x);

trace(y);

As does this:

code:



x = 5;

y = 5;

trace(x);

trace(y);

Personally, I would go with that last method - it's clearest. However, if you really want to save typing a few characters, at the expense of a little readability, by all means try this:

code:



on (release) {

        if (h1._visible ==  true && h2._visible == true) {

                h1._visible = h2._visible = false;

        } else {

                h1._visible = h2._visible = true;

        }

}

Lexicon · 10-01-2004, 03:54 PM

if all you are doing is toggling the visibility then there is no need for an if statement anyway...

code:



on(release){

    h1._visible = h2._visible = !h1._visible;

}

10-01-2004, 11:55 AM	#1
flamingmongrel Junior Member Join Date: Apr 2003 Location: UK Posts: 14	Very quick if statement question. Hi I have a very quick question about writing if statements. When the user clicks a button I want h1 and h2 to either appear or dissapear depending on their current state, I can get just one to work (i.e. h1 on its own) but I don't know the correct syntax for two or even three variables. I've shown my code below, as you can see I thought a comma might work to separate the values but it doesn't. code: on (release) { if (h1,h2._visible) { h1,h2._visible = false; } else { h1,h2._visible = true; } } Last edited by jbum; 10-01-2004 at 02:57 PM.

10-01-2004, 12:06 PM	#2
frozenfire89 Senior Member Join Date: Jul 2004 Location: In a box outside of Safeway Posts: 201	code: on (release) { if (h1._visibility && h2._visibility) { h1._visibility, h2._visibility = false; } else { h1._visibility, h2._visibility = true; } } __________________ If computer games affected us, would I not be running into walls popping strange yellow pills and listening to repetitive music? Last edited by jbum; 10-01-2004 at 02:57 PM.

10-01-2004, 02:55 PM	#4
frozenfire89 Senior Member Join Date: Jul 2004 Location: In a box outside of Safeway Posts: 201	code: on (release) { if (h1._visible == true && h2._visible == true) { h1._visible, h2._visible = false; } else { h1._visible, h2._visible = true; } } EDIT: Edited some of the posts in this thread to use as tags - jbum __________________ If computer games affected us, would I not be running into walls popping strange yellow pills and listening to repetitive music? Last edited by jbum; 10-01-2004 at 02:58 PM.

10-01-2004, 03:48 PM	#5
jbum Senior Member Join Date: Feb 2004 Location: Los Angeles Posts: 2,920	In my version of flash (MX 2004) the following code does not work: code: // BROKEN!! x,y = 5; trace(x); trace(y); If you do the above, y will be equal to 5, but x will be undefined. This implies that the example shown above, also using a comma, will also not work. The following does work, however: code: x = y = 5; trace(x); trace(y); As does this: code: x = 5; y = 5; trace(x); trace(y); Personally, I would go with that last method - it's clearest. However, if you really want to save typing a few characters, at the expense of a little readability, by all means try this: code: on (release) { if (h1._visible == true && h2._visible == true) { h1._visible = h2._visible = false; } else { h1._visible = h2._visible = true; } } __________________

10-01-2004, 03:54 PM	#6
Lexicon Monkey Moderator Join Date: Jul 2001 Location: UK Posts: 2,038	if all you are doing is toggling the visibility then there is no need for an if statement anyway... code: on(release){ h1._visible = h2._visible = !h1._visible; } __________________ www.lexicon-design.co.uk If we aren't supposed to eat animals, then why are they made of meat? If Vegetarians like animals so much, why do they eat all their food?

10-01-2004, 12:31 PM	#3
flamingmongrel Junior Member Join Date: Apr 2003 Location: UK Posts: 14	That doesn't work mate. I assume you meant _visible instead of _visibility. Anyway I tried both methods and neither worked. Any more ideas on this one, I know its only a small thing, but I don't know the proper syntax in ActionScript.

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