import bpy
import math
p_type = ['D_STAIR','S_LANDING','C_LANDING','S_LANDING','C_LANDING','S_LANDING']
p_shape = ['CIRCLE','CIRCLE','RECTANGLE','CIRCLE','RECTANGLE','CIRCLE']
p_radius = [2,2,2,2,1,2]
p_angle = [3.14159,1,1.5708,1,1.5708,1]
p_length = [1,0.5,1,1,1,1.5]
parts = 24-4
height = math.ceil(parts/6)*2.5
d = bpy.context.object.data.StairProperty[0]
d.presets = 'STAIR_USER'
d.height = height


#post
d.left_post = True
d.right_post = True
d.post_spacing = 0.8
d.post_y = 0.04
d.post_x = 0.04
d.post_z = 1
d.post_offset_x = 0.02
#subs
d.left_subs = True
d.right_subs = True
d.subs_spacing = 0.3
d.subs_y = 0.02
d.subs_x = 0.02
d.subs_z = 1
#handrail
d.left_handrail = True
d.right_handrail = True
d.handrail_alt = 1
d.handrail_extend = 0.1

#panel
d.right_panel = True
d.left_panel = True
d.panel_dist = 0.05
d.panel_x = 0.01
d.panel_z = 0.6
d.panel_alt = 0.33

#rails 1
d.right_rail = True
d.left_rail = True
d.rail_z[0] = 0.01
d.rail_x[0] = 0.01
d.rail_alt[0] = 0.33
#rails 2
d.rail_z[1] = 0.01
d.rail_x[1] = 0.01
d.rail_alt[1] = 0.93


d.n_parts = parts

c = 0
for i in range(0,parts):

    d.parts[i].type = p_type[c]
    if p_type[c] == p_type[0]:
        d.parts[i].left_shape = 'CIRCLE'
        d.parts[i].right_shape = 'CIRCLE'
        d.parts[i].radius = p_radius[c]
    elif p_type[c] == p_type[2]:
        d.parts[i].left_shape = 'RECTANGLE'
        d.parts[i].right_shape = 'RECTANGLE'
        d.parts[i].radius = p_radius[c]

    d.parts[i].da = p_angle[c]
    d.parts[i].length = p_length[c]
    c += 1
    if c == 6:
        c = 0
    print ("c:",c,i)