import rhinoscriptsyntax as rs
import random as ran

allobjs = rs.AllObjects()
rs.DeleteObjects(allobjs)

bsize = 2
dist = 10
offs = bsize + dist
num = 20

corners = [(0,0,0), (bsize,0,0), (bsize,bsize,0), (0,bsize,0), (0,0,bsize), (bsize,0,bsize), (bsize,bsize,bsize), (0,bsize,bsize)]

rs.EnableRedraw(False)


"""

for i in range(num):
    for j in range(num):
        for p in range(num):
            myran = ran.randint(0,2)
            if (myran > 1):
                box = rs.AddBox(corners)
                rs.MoveObject(box, (i*offs,j*offs,p*offs))
                rs.ObjectColor(box, (i*(255/num), j*(255/num), 255))
                
"""

for i in range(num):
    for j in range(num):
        myran = ran.randint(0,10)
        if (myran > 4):
            if (i%10) and (j%10):
                box = rs.AddBox(corners)
                rs.MoveObject(box, (i*offs,j*offs,0))
                rs.ObjectColor(box, (i*(255/num), j*(255/num), 255))