City_Generator_Attempt | Python Fiddle

import maya.cmds as cmds
import random #will need this to generate random buildings

#User control parameters
#---------------------------------------------------------------------------------------------------------------------------------------#
#city name
#terrain type (hilly/flat)
#layout (regular/irregular grid or circular)
#city spread area
#number of blocks per dimension
#number of buildings per block
#width of road
#gap between buildings
#width of pavement
#green coverage
#city centre percentage
#---------------------------------------------------------------------------------------------------------------------------------------#

def createCityGUI():
    #create GU for the user to select the parameters
    cityWindow = cmds.window (title = "City Generator 1.0", wh(400, 500), s=True)
    cmds.columnLayout (adjustableColumn=True, rowSpacing=5, cw=100, cal='left')
    
    cmds.showWindow(cityWindow)
    
def deleteCity():
    cmds.select(all=True)
    cmds.deleteCity()
    
def createCity():
    #fetch the control parameters from the createCityGUI and generate the city
    deleteCity() #delete the existing city before creating a new one
    #fetch the control parameters:
    __name = cmds.textFieldGrip('cityName', query=True, text=True)
    #do the same for the amount, gap, roadWidth, paveWidth, districtSize and citySpread
    
   makeCity('city', __amount, __gap, 5, roadWidth, __paveWidth, __districtSize, __citySpread)
#----------------------------------------the main program starts with the following function--------------------------------------------#
if __name__ == "__main__":
    createCityGUI()

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