import rhinoscriptsyntax as rs
import random as ran


#delete everything and start from scratch
allobjs = rs.AllObjects()
rs.DeleteObjects(allobjs)

bsize = 10           #side length of box 
dist = 1             #distance between boxes
offs = bsize + dist  #offset of boxes
num = 30              #number of boxes in one row

#create a box
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)]


for i in range(num):
    for j in range(num):
        for p in range(num):
            myran = ran.randint(0,9)
            if (myran > 2):
                if((i+j+p)%3) and ((i+j-p)%3) and ((i-j+p)%3) and ((i-j-p)%3):
                    box = rs.AddBox(corners)
                    rs.MoveObjects(box, (i*offs, j*offs,0))
"""

for i in range(num):
    for j in range(num):
        if ((i+j)%3) and ((i-j)%3):
             box = rs.AddBox(corners)
             rs.MoveObjects(box, (i*offs,j*offs,0))
"""