Need logical calculation/control actor suggestion

[chimerik]

Hi all,

I am trying to find the right actor to interpret more than one value of "if then": I have 8 sensors each outputting 1 when on, 0 when off. I'm trying to find an actor that can do "if all 8 values are 0, then output 1 or trigger".

I've tried the Lookup actor, but it doesn't seem to do what I want.

I'm sure this is quite easy, but I can't seem to find the right actor for it.

Thanks very much

[Skulpture]

Comparator actor? 

[chimerik]

Hi @Skulpture,

I need to compare 8 values though. If all 8 values = 0 then output 1.

If there any actor that can compare more than 1 values?

Thanks!

[Michel]

@chimerik

this is quite easy: use four calculator actors for the input values, then another two to get the summary of two pairs and another one to get the summary from them. Then take a comparator actor that is looking for zero, if zero then the output is one otherwise zero. See attached image.

Best
Michel

[gavspav]

Seems like an ideal place for the javascript actor.

Also very minor bug report - it says compatator in the help for the comparator actor (see Skulptures post above)

[Reinhard]

Michel was faster...

[chimerik]

@[Michel](http://troikatronix.com/troikatronixforum/profile/9/Michel) 

YES!!! This is it! So simple, but need intelligent brains to show me the way. Thanks so much!

[gavspav]

Or paste the following into a javascript actor with 8 inputsfunction main(){ total=0; for (i=0;i<8;i++) { total+=arguments[i] } return total>0; }

[Skulpture]

Well spotted @gavspav ;)

[DusX]

The javascript method is great.

But another very simple one can be setup using the 'Lookup' actor.

It will output 0 if the 'compare' input is not found in the X (eight for this case) inputs.

Otherwise it will say which input matches the 'compare'

If your binary values run into eight value inputs, and you compare '1', you will receive a '0' if all of your eight values are not 1, and a value between 1 and 8 if there is a match.

[gavspav]

Thats great too!

Another way - how about the Maximum actor with 8 inputs. 

The advantage of this is that the 8 value inputs are 'active' - with the lookup actor you have to keep sending '1' to the compare input every time you want the actor to do its thing.

Sorry if I'm getting a bit anal. On the same note here's a rewrite of the javascript:

function main()
{
for (i=0;i<8;i++) {
	if (arguments[i]==1) {
		return 1;
 		break;
		}
	}
return 0;
}

[Michel]

@gavspav

yep the maximum actor is even simpler to setup.

[DusX]

@gavspav

yes,Maximum is an easier choice than lookup.

Its probably the easiest native Isadora solution.

[chimerik]

Wow, thank you @DusX & @Michel!
I didn't know about the Maximum actor. this is so great! yes, the easiest solution! thanks so much.

[chimerik]

and thank you @gavspav 

I just realized you've already suggested it as well. i'll try the javascript actor too, just for fun. cheers.

[DusX]

@chimerik

the tutorial on Javascript for Isadora might be worth a read.

http://troikatronix.com/support/kb/getting-started-with-javascript/