5.7 - Simple Car Example Using Functions

import maya.cmds as cmds

def create_car(name, length =2 , width = 1):
body = create_body(length, width)
tires = create_tires(length, width)
final_name = assemble_car(name, body, tires)

cmds.select(clear=True)

return final_name

def create_body(length, width):
body = cmds.polyPlane( w = length, h = width, name = "body")
return body[0] # transform node

def create_tires(body_length, body_width):
tire_width = 0.25 * body_width
tire_radius = 0.25 * body_length
x_pos = 0.5 * body_length
z_pos = 0.5 * body_width + 0.5 * tire_width

fl_tire = create_tire("front_left_tire", tire_width, tire_radius, x_pos, 0, -z_pos)
fr_tire = create_tire("front_right_tire", tire_width, tire_radius, x_pos, 0, z_pos)
rl_tire = create_tire("rear_left_tire", tire_width, tire_radius, -x_pos, 0, -z_pos)
rr_tire = create_tire("rear_right_tire", tire_width, tire_radius, -x_pos, 0, z_pos)

return [fl_tire, fr_tire, rl_tire, rr_tire]

def create_tire(name, width, radius, tx, ty, tz):
tire = cmds.polyCylinder(h = width, r = radius, ax = (0, 0, 1), sc = True, name = name)
cmds.setAttr("{0}.translate".format(tire[0]), tx, ty, tz)
return tire[0]

def assemble_car(name, body, tires):
body_grp = cmds.group(body, name = "body_grp")
tires_grp = cmds.group(tires, name = "tires_grp")

car_grp = cmds.group(body_grp, tires_grp, name = name)
return car_grp

if __name__ == "__main__":
final_name = create_car("test_car")
print(" Car created: {0}".format(final_name))