import rhinoscriptsyntax as rs
import random as ran

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

def make_box(insertion = [0,0,0],xsize = 10,ysize = 10,zsize = 10):
    corners = [(0,0,0),(xsize,0,0),(xsize,ysize,0),(0,ysize,0),(0,0,zsize),(xsize,0,zsize),(xsize,ysize,zsize),(0,ysize,zsize)]
    mybox = rs.AddBox(corners)
    rs.MoveObject(mybox,(-xsize/2,-ysize/2,0))
    rs.MoveObject(mybox, insertion)
    return(mybox)

"""
steps = 14
for i in range(steps) :
    make_box([i*0.3,0,i*0.18],0.6,1.2,0.18)
"""
def make_stair(start, th, tt, steps, thick, s_width):
    pointlist= [start]
    for i in range(steps) :
        pointlist.append([pointlist[-1][0],pointlist[-1][1],pointlist[-1][2]+th])
        pointlist.append([pointlist[-1][0]+tt,pointlist[-1][1],pointlist[-1][2]])
    pointlist.append([pointlist[-1][0],pointlist[-1][1],pointlist[-1][2]-thick])
    pointlist.append([pointlist[0][0],pointlist[0][1],pointlist[0][2]-thick])
    pointlist.append([pointlist[0][0],pointlist[0][1],pointlist[0][2]])
    s_outline=rs.AddPolyline(pointlist)
    path = rs.AddLine(start, [start[0],start[1]+s_width,start[2]])
    hull = rs.ExtrudeCurve(s_outline, path)
    rs.CapPlanarHoles(hull)
    return(hull)

steps = 26
th=.18
tt=.3
thick=0.2
s_width=1.2
make_stair([0,0,0], th, tt,steps, thick, s_width)
make_stair([steps*tt, s_width, steps*th],th,-tt,steps,thick,s_width)