Else and Stop Loop

if you are looping and you want to stop the loop, you use the Stop Loop Action. I thought if you put an ELSE to that loop it will trigger if nothing passes the loop condition, but in my tests it seems Stop Loop is causing the Else to fire even though something passed the loop condition.

Limited info in the doc:

Is there a built-in way to know if nothing was selected in the loop? or do I need to set a bool inside the loop?

that because else, triggers if the above condition isn't met, no matter what you put above it, else will always trigger. that's how else works it's a basic js action.

unless you do else(condition == true/false) {do something}

or in construct way you have to do

in same else condition block another condition like

===========

else

someothercondition

===========

but then else is redundant at that point.

to better understand else in any use

u basically do a 2 condition loop

one would be that fires the first loop

and once that fails to meet the condition

else takes place.

there is no way to avoid it unless you remove else entirely and replace it with the opposite condition of the above.

AllanR well in a thread a little while back oosyrag was helping out with a grid system.

https://www.construct.net/en/forum/construct-3/general-discussion-7/random-board-generation-arrow-143655

oosyrag

The Else event will only run if the previous event did NOT run (meet conditions). So if none of the spots checked in the first loop were valid, stop loop would never have run, and the following event will run. If the first loop did execute, then the else event would not.

The assumption there was that Else would work if a loop never found anything. I actually could have sworn it worked then. but I also recently tested it and I think the else still fires with the stop loop.

GeorgeZaharia but the above event does trigger, it just gets stopped prematurely with Stop Loop. Yet Else still executes.

GeorgeZaharia but the above event does trigger, it just gets stopped prematurely with Stop Loop. Yet Else still executes.

then either stop loop doesn't consider Else or the structure of conditions is wrong made.

would help having a screenshot of your loop/else stop loop order of events.

cause order of events top/bottom matters.

oosyrag no problem, I was assuming you were right because you usually are!

GeorgeZaharia

here is what I was testing:

I can always do this (which works) but I just like the else

Ashley can you confirm Else doesn't work for loops?

looks ok .... stop loop tough stops the loop condition for which the action "stop loop" is set upon.

else will fire no matter if you have stop loop in that method(because is still a Else valid argument, anything that isn't above being it null, error, NaN, infinity, even halted status of loop, or not the values above etc will fire Else). what you can try is.... add another blank subevent under else ... not as a child of else but like a 3rd condition on spacebar pressed ... then move the stop loop there. see if that works... but then stop loop would not have a loop to work with ... ehm ... maybe Else is not best use here ... you could try pinpoint when exactly you want the error to fire... for example

if space was pressed

u got a variable that its value is set to a random between of 5 and 25.

condition 1 loop is true if matches the variable above... play this audio ... right?

condition 2 (should replace else ) and pinpoint what would be the desired condition here, like if loopindex("testloop") total loops equal to zero matches to textcheck then trigger error.

you can do that by saving your loop into an array and record the match, if it matches 2 3 times then you can play the audio based on array entries and if it doesn't matches the array then trigger error. is a bit convoluted for something simple like this. not sure what is the purpose of your test, like what is it meant for .. probably there is a simpler or better way of doing it and avoid the loop/else problem entirely.

Ashley

Else doesn't make any sense after a loop. I don't know what you'd expect it to do or even how you'd define what it does. A loop is a procedure, not a condition, so it's not applicable to ask if the condition was met.

well you can maybe see why one would think it might work if the loop is in a condition like my screenshot earlier in this thread. Because A) Else "runs if the previous event did not run" and B) the editor allows it

if it's invalid the editor shouldn't allow you to add it. The Else should turn red like it does in other invalid situations.