corso Alek esercizio 7 lezione 8

import bpy
from math import pi

C=bpy.context
D=bpy.data
O=bpy.ops

for o in D.objects:
    D.objects.remove(o)
for m in D.meshes:
    D.meshes.remove(m)
for c in D.collections:
    D.collections.remove(c)

class Tavolino:
    def __init__(self,lar=2,lun=.8,spe=.05,alt=.7,dia=.05,gap=.05,loc=(0,0),rot=0,n_sedie=1):
        rotrad=rot*2*pi/360
        O.mesh.primitive_cube_add(size=2,location=(loc[0],loc[1],alt+spe/2),scale=(lar,lun,spe),rotation=(0,0,rotrad))
        tavola=C.object
        loc_x=lar/2-dia/2-gap
        loc_y=lun/2-dia/2-gap
        bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt,location=(loc_x,loc_y,-alt/2-spe/2))
        gambo1=C.object
        gambo1.parent=tavola
        bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt,location=(loc_x,-loc_y,-alt/2-spe/2))
        gambo2=C.object
        gambo2.parent=tavola
        bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt,location=(-loc_x,loc_y,-alt/2-spe/2))
        gambo3=C.object
        gambo3.parent=tavola
        bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt,location=(-loc_x,-loc_y,-alt/2-spe/2))
        gambo4=C.object
        gambo4.parent=tavola

        def sedia(lun_s2,lun_s3):
            O.mesh.primitive_cube_add(size=2,location=(lun_s2,0,-alt/2),scale=(lun/2,lun/2,spe))
            seduta=C.object
            seduta.parent=tavola
            O.mesh.primitive_cube_add(size=2,location=(lun_s3,0,alt/4+spe),scale=(lun/2,lun/2,spe),rotation=(0,1.5707,0))
            spalliera=C.object
            spalliera.parent=seduta
            loc_xs=lar/8-dia/2-gap*1.5
            loc_ys=lun/3.5-dia/21-gap*1.5
            bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt/2,location=(loc_xs,loc_ys,-alt/4-spe/2))
            gambo1s=C.object
            gambo1s.parent=seduta
            bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt/2,location=(loc_xs,-loc_ys,-alt/4-spe/2))
            gambo2s=C.object
            gambo2s.parent=seduta
            bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt/2,location=(-loc_xs,loc_ys,-alt/4-spe/2))
            gambo3s=C.object
            gambo3s.parent=seduta
            bpy.ops.mesh.primitive_cylinder_add(vertices=64,radius=dia/2,depth=alt/2,location=(-loc_xs,-loc_ys,-alt/4-spe/2))
            gambo4s=C.object
            gambo4s.parent=seduta


        if n_sedie == 1:
            lun_s2 = lun+lun/2
            lun_s3 = lun/4-spe/2
            sedia(lun_s2,lun_s3)
        if n_sedie == 2:
            lun_s2 = lun+lun/2
            lun_s3 = lun/4-spe/2
            sedia(lun_s2,lun_s3)
            lun_s2 = -lun-lun/2
            lun_s3 = -lun/4+spe/2
            sedia(lun_s2,lun_s3)
        if n_sedie == 0:
            print("pizza")