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SnarlingSheep · Posted: Mon Mar 11, 2002 9:36 pm Post subject: RANDOM Numbers

I'm not real sure if this is a bug or not, but if I compile the code below, everytime I run the compiled program it gives me the same numbers. If I compile it again I get a different set of numbers, which are the same everytime I run it.
Is it just me?

SnarlingSheep · Posted: Thu Mar 14, 2002 1:55 am Post subject:

Has anyone tried this? I'd like to see if it's just me..

marty · Professional Member Joined: 10 May 2001 Posts: 789

Well works for me after I compiled.

info @random(1,15) I got 13
info @random(1,15) I got 4

Using VDS 4.02 on Windows 2000 PIII 733

Wink

SnarlingSheep · Posted: Thu Mar 14, 2002 5:26 pm Post subject:

What I mean, is that when I open the program after compiling I get say, 13 and 4. Then if I close the program and open again, I will get 13 and 4 again, the same thing again and again until I recompile..

marty · Professional Member Joined: 10 May 2001 Posts: 789

Well now I do it like you said and I have always the same results when re-running the same exe again and again...

I guess that's a bug...strange... 8O

Cool

easy rider · Posted: Thu Mar 14, 2002 7:51 pm Post subject:

hi snarlingsheep

I don't no why but maybe you have to use it in a dialog, then it works fine
see code below

SnarlingSheep · Posted: Thu Mar 14, 2002 8:33 pm Post subject:

easyrider:
Nope, same result. If you have compiled your example, open the EXE and look at the numbers it gives, close it and then open the EXE again. They will be the same.
I opened it, got 7 and 12, hit new, got 6 and 12. Closed it. Opened it again, got 7 and 12, hit new, and got 6 and 12 again.
It's like they are saved somewhere when you compile..

Another bug to send to SADE?

Tommy · Posted: Thu Mar 14, 2002 10:21 pm Post subject:

It's not a bug, you should first seed the random number generator using the RANDOM command with a value that varies each time. This is the case in almost any other programming language too.

Tommy

SnarlingSheep · Posted: Fri Mar 15, 2002 3:37 am Post subject:

Color me stupid..but then how do you go about getting completly random numbers?
With vdsrnd32.dll it just picked out a number between whichever numbers you used. VDS does the same when you run the program from the editor, and just use @random(1,15).
Sheep need bigger brains..

Dr. Dread · Posted: Fri Mar 15, 2002 6:56 am Post subject:

Nope, I don't think that you need bigger brains, Sheep. I think that perhaps
VDS needs a better help file because it's not very clear on this issue.

But if you wanna seed your number gen, you might use something like
this:

SnarlingSheep · Posted: Fri Mar 15, 2002 7:17 am Post subject:

That works for me.
Thanks Dread Smile

Lucyfer · Posted: Sat Apr 06, 2002 2:53 pm Post subject:

Hi, glad to be joining the forces! Smile

On the RANDOM subject, I've got a couple of points.

- The seeding is usually done with the @datetime() function, with the undocumented option snd. Weird, I can't find out WHERE I found about this... VDSrnd16 helpfile?