Concatenating Booleans crashes the game

immor7al

I'm not a programmer by study, but I was under the impression that concatenating would work with anything. But, if I concatenate a boolean, my game crashes. Concatenating integer-type variables is fine.

Can someone enlighten me?

Rattlehead

I think you need to provide a bit more detail...

First off, why are you trying to concatenate two boolean variables?

Are you trying to do this in a rule?

gyroscope

If you are trying this in a Rule, I can't see why it would crash. Putting When All conditions are valid: Attribute A =false; Attribute B=true; Attribute C=false, etc., as an example, then run the behaviours, should work...

If that's the sort of thing your doing, then that resulting in a bug has surely got to be a bug somewhere...

immor7al

I make a new actor, give it a "Display Text" behavior. I open the expression editor in this behavior and type:

"showboolean:"..game.boolean

I hit the green check mark. I put the actor on the stage. When I preview it, the game doesn't run.

However, if I type something in the "Display Text" behavior's expression editor like this:

"showinteger:"..game.integer

...the game runs fine.

Sorry for any confusion, like I said I'm not a programmer. And now I know concatenating has more meanings than one.

Rattlehead

Ahhh... so you are trying to display whether a value is true or false. I haven't tried in the latest build that was uploaded last night but I have done it before without prefixing with the "showboolean:" text you have.

Try taking that part out and see if it still displays the value of the variable. It should.

immor7al

Yeah, displaying booleans work fine with the "Display Text" behavior if I don't use that syntax. So it would just be: game.boolean

But, if I wanted to concatenate an integer-type variable and a boolean-type variable in the same "Display Text" behavior, it won't work.

So, I've also tried it like this:

"showinteger:"..game.integer.."_game.boolean"'

...but, instead of displaying the variables value (which should be just true or false), it displays its ID. I think it displayed something like (var[game.boolean:id3519123]) ...something weird like that.

Rattlehead

Yeah, that is odd. It sounds like there is no conversion to a string prior to displaying it with Display Text or something. Hopefully someone from GS can shed some light on this.

gyroscope

Hi immor7al: think I know your problem: you can't concatanate boolean with integer; in other words, you can have any equation with these together. This is because a boolean is just two states, true or false (you can make this 0 or 1 if you want, but that is still not usesful when it comes to equations). Integers, being numbers, can be any number.

Hope I've understood correctly and this helps.

:-)