lab01.py File Reference

A reintroduction to Python and finite state machines. More...

Classes
class	lab01.Conditions
	Class to keep track of vending machine conditions to instruct master mind. More...

Functions
def	lab01.printWelcome ()
	Prints welcome message. More...
def	lab01.state0 (c)
	Perform State 0 operations. More...
def	lab01.state1 (c)
	Perform State 1 operations. More...
def	lab01.state2 (c)
	Perform State 2 operations. More...
def	lab01.state3 (c)
	Perform State 3 operations. More...
def	lab01.state4 (c)
	Perform State 4 operations. More...
def	lab01.state5 (c)
	Perform State 5 operations. More...
def	lab01.state6 (c)
	Perform State 6 operations. More...
def	lab01.state7 (c)
	Perform State 7 operations. More...
def	lab01.state8 (c)
	Perform State 8 operations. More...
def	lab01.state9 (c)
	Perform State 9 operations. More...
def	lab01.state10 (c)
	Perform State 10 operations. More...
def	lab01.state11 (c)
	Perform State 11 operations. More...
def	lab01.state12 (c)
	Perform State 12 operations. More...
def	lab01.state13 (c)
	Perform State 13 operations. More...
def	lab01.state14 (c)
	Perform State 14 operations. More...
def	lab01.state15 (c)
	Perform State 15 operations. More...
def	lab01.main_loop (c)
	FSM Main loop. More...
def	lab01.main ()
	Main. More...

Detailed Description

A reintroduction to Python and finite state machines.

The goal of this lab is to regain comfort with python and the concepts learned in ME 305 by developing a program that "embodies the function of a vending machine."

Author

Hunter Morse

Date

Jan. 14, 2021

Function Documentation

main()

def lab01.main

(

)

Main.

Initialize FSM

main_loop()

def lab01.main_loop

(

c

)

FSM Main loop.

Implement the FSM using a while loop and an if statement. Will run eternallly intil the user presses CTRL-C

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

printWelcome()

def lab01.printWelcome

(

)

Prints welcome message.

Prints a Vendotron^TM^ welcome message with beverage prices

state0()

def lab01.state0

(

c

)

Perform State 0 operations.

This init state intializes the FSM itself

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state1()

def lab01.state1

(

c

)

Perform State 1 operations.

Displays the startup message and awaits any input from the machine before incrementing the state

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine
c	A Conditions object used to keep track of the conditions of the vending machine

state10()

def lab01.state10

(

c

)

Perform State 10 operations.

Raise return money flag so that money is returned on the next MM loop

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state11()

def lab01.state11

(

c

)

Perform State 11 operations.

Dispense soda and recalculate current balance

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state12()

def lab01.state12

(

c

)

Perform State 12 operations.

Return change and reset to State 1

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state13()

def lab01.state13

(

c

)

Perform State 13 operations.

Reset flags and return to state 1

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state14()

def lab01.state14

(

c

)

Perform State 14 operations.

Wait for key to be pressed

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state15()

def lab01.state15

(

c

)

Perform State 15 operations.

Wait for key to be released

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state2()

def lab01.state2

(

c

)

Perform State 2 operations.

Master Mind dictates which state operates next based on the flags raised

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state3()

def lab01.state3

(

c

)

Perform State 3 operations.

The Cuke Handler sets the current soda selection and price. If the balance is insufficient an error is raised

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state4()

def lab01.state4

(

c

)

Perform State 4 operations.

The Popsi Handler sets the current soda selection and price. If the balance is insufficient an error is raised

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state5()

def lab01.state5

(

c

)

Perform State 5 operations.

The Spryte Handler sets the current soda selection and price. If the balance is insufficient an error is raised

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state6()

def lab01.state6

(

c

)

Perform State 6 operations.

The Dr. Pupper Handler sets the current soda selection and price. If the balance is insufficient an error is raised

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state7()

def lab01.state7

(

c

)

Perform State 7 operations.

Update the balance besed on the coin inserted. Raise a flag to update the display to reflect the new balance

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state8()

def lab01.state8

(

c

)

Perform State 8 operations.

If error flag is raised it's because there's an insufficient balance

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine

state9()

def lab01.state9

(

c

)

Perform State 9 operations.

Update the display to the message stored in disp_next

Parameters

c	A Conditions object used to keep track of the conditions of the vending machine