Graal Forums - Random?

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Astram

03-02-2011 04:56 AM

Random?

How would I make a random integer?
Like for chance... It needs to say a RANDOM number.

PHP Code:


		
			
function onActionGrab()

{

this.chat = ??? -Random Stuff Here- ???

}

Jiroxys7

03-02-2011 05:14 AM

random(lownumber,highnumber);
combined with int(val);

To get a random int between 0 and 5, for example:
int(random(0,5.9999));

I suggest putting the 9's there for any of the integer-related random numbers, otherwise the chances of the high number showing up are slim to none.

DustyPorViva

03-02-2011 05:15 AM

this.chat = int(random(0,100)+.5);

Astram

03-02-2011 05:19 AM

Quote:

Originally Posted by DustyPorViva (Post 1634019)

this.chat = int(random(0,100)+.5);

whats the +.5 for? :confused:

Cloven

03-02-2011 05:36 AM

Quote:

Originally Posted by Astram (Post 1634021)

whats the +.5 for? :confused:

Because Graal's random functionality dislikes the high-end of a defined range for some reason. All values below the maximum value tend to have a higher probability of occurring. :(

Jiroxys7

03-02-2011 08:00 PM

Quote:

Originally Posted by DustyPorViva (Post 1634019)

this.chat = int(random(0,100)+.5);

That does look cleaner, but I suggest getting as close to +1 as reasonably possible. with only +0.5, there's a ~0.5 out of 5 chance that it will actually roll he high number. Which is why you should, at the very least, tag +0.99 at the end. add more 9's the more important it is.

DustyPorViva

03-02-2011 08:01 PM

Quote:

Originally Posted by Jiroxys7 (Post 1634119)

You are reading it wrong. It generates a random number then adds .5 to it. With int() this effectively rounds the number up, eliminating the problem.

Jiroxys7

03-02-2011 08:05 PM

Quote:

Originally Posted by DustyPorViva (Post 1634121)

You are reading it wrong. It generates a random number then adds .5 to it. With int() this effectively rounds the number up, eliminating the problem.

Ah, I see!

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