import rhinoscriptsyntax as rs
import random as ran
import fantastic_stairs_lib as fs
reload(fs)
# delete everything and start from scratch
rs.DeleteObjects(rs.AllObjects())
rs.EnableRedraw(False)

curve = fs.make_random_spiral(15,15,20)
len_c = rs.CurveLength(curve)
An=0
P=8
mods= (len_c-An)/ (P*fs.tt+fs.pod_l + fs.tt)
steps= int(mods*P)+1
fs.make_curved_podeststair(curve, steps=steps, pod_l=fs.pod_l, DC=steps+1, P=P, An=An)
i=1
length_fromstart = An+P*fs.tt+fs.pod_l/2
while length_fromstart < len_c: 
    point = rs.CurveArcLengthPoint(curve, length_fromstart)
    m_l= rs.AddLine(point, [point[0], point[1], i*P*fs.th-fs.thick])
    rs.AddPipe(m_l, 0, 0.2)
    (box1, line1)=fs.make_box_wline([point[0], point[1], i*P*fs.th-fs.thick], 1.5, 1.2, fs.thick)
    param = rs.CurveClosestPoint(curve, point)
    normal = rs.CurveTangent(curve, param)
    angle = rs.Angle([0,0,0], normal)[0]
    rs.RotateObjects([box1,line1], [point[0], point[1], i*P*fs.th-fs.thick], angle, [0,0,1])
    i=i+1
    length_fromstart += P*fs.tt+fs.pod_l+fs.tt
#rs.DeleteObject(line1)

rs.EnableRedraw(True)