Rand(lo,hi) (Int)

Monkey Forums/Monkey Code/Rand(lo,hi) (Int)

Chroma

(Posted 2011) [#1]

Rand(359) would return 0 to 359 integer.
Rand(5,10) would return well...

Function Rand:Int(vmin:Int, vmax:Int=0)
	Local rnum:Int
	If Not vmax
		rnum = Rnd(0,vmin+.99)
	Else
		rnum = Rnd(vmin,vmax+.99)
	Endif
	Return rnum
End Function

matt	(Posted 2011) [#2]

Is there any benefit to this over using Rnd#( low#, high# ) wrapped in a rounding function?

Warpy

(Posted 2011) [#3]

You should really do the one-parameter case by function overloading, because what if I want Rand(-1,0)?

matt - this really is just Rnd wrapped in a rounding function.

vmax+.99 as an upper bound doesn't *really* get you what you want, which is everything in the interval [vmin,vmax+1), ie vmin <= rnum < vmax+1.

But in fact Monkey's Rnd function excludes the upper bound, so you can just do Int(Rnd(vmin,vmax+1)).

Chroma

(Posted 2011) [#4]

Ah, thanks Warpy. That's what I was wondering. I prefer a simple Rand function for when I just want a random integer.

Much nicer:

Function Rand:Int(vmin:Int, vmax:Int)
     Return Rnd(vmin, vmax+1)
End Function

matt	(Posted 2011) [#5]

Sorry @Warpy, I meant the same as your conclusion - Rnd wrapped in a built-in rounding function. Int is even tidier than using Floor.