rnd7

gistfile1.scala

import Math._

// random number in range 1 - 5
def rnd5 = (floor(random * 5) + 1).toLong

// random bit
def rndbit: Long = {
	val i = rnd5
	if (i == 1 || i == 2) 0L
	else if (i == 3 || i == 4) 1L
	else rndbit
}

// random int
def rndint = {
	var i = 0l
	for (shift <- 0 until 32) {
		i = i | (rndbit << pow(2, shift).toLong)
	}
	i
}

def ran7 = (rndint % 7) + 1