import time

from tkinter import $*$

from random import randint

class ButtonWrapper:

def $($self$,id=,$ row $=-1,$ col $=-1,c=)$ :

self.ID $=$ id

self. ROW $=$ row

self. COL $=$ col

self. COLOR $=C$

self.BUTTON$\_$OBJ $=$ None

Check if two buttons have been clicked and if they are a match""."

def check$\_$match$()$:

global buttons

clicked $=[]$

for $b$ in buttons. values$()$:

if b$.$BUTTON$\_$OB$][\text{'}$relief$\text{'}]==$ "sunken":

clicked.append $($b$)$

if len$($clicked$)2$ :

if clicked $[0].$BUTTON$\_$OB$][\text{'}$bg$\text{'}]==$ clicked$[1].$BUTTON$\_$OBJ $[\text{'}$bg $\text{'}]$ :

# It's a match

clicked $[0].$ BUTTON$\_$OBJ. configure$($fg$=$'black', bg$=$'black', relief$=$'raised $\text{'})$

clicked $[1].$BUTTON$\_$OBJ. configure$($fg$=$'black', bg$=$'black', relief$=$'raised $\text{'})$

# black

else:

clicked $[0].$ BUTTON$\_$OBJ. configure $($fg$=$'SystemButtonFace', bg$=$'SystemButtonFace', relief$=$'raised $\text{'})$

clicked $[1].$BUTTON$\_$OB$].$ configure $($fg$=$'SystemButtonFace', bg$=$'SystemButtonFace', relief$=\text{'}$ raised $\text{'})$

If a button is pushed, draw the correct colors".".

def button$\_$pushed$($pushed$\_$id$)$:

global buttons

buttons $[$pushed$\_$id$].$BUTTON$\_$OBJ.configure $($bg$=$buttons $[$pushed$\_$id$].$COLOR, relief$=$"sunken"$)$

# Because time.sleep blocks execution, the color change for the second button clicked does not take effect until

# the function returns. So we need to use the 'after$()\text{'}$ method

# Parameters:

# parent: is the object of the widget or main window whichever is using this function.

# ms: is the time in milliseconds.

# function: which shall be called.

# $*$args: other options.

buttons $[$pushed$\_$id$].$BUTTON$\_$OBJ.after$(1500,$ check$\_$match$)$

def close$\_$options$($top$)$:

top.destroy$()$

# Create an Entry wiaget in the loplevel window

row $=$ Entry$($top$,$ width $=25,$ textvariable$=$row$\_$val$)$

row.pack$()$

col $=$ Entry$($top$,$ width $=25,$ textvariable $=$ col$\_$val$)$

col. pack$()$

Create a Button to print something in the Entry widget

save $=$ Button$($top$,$ text$=$"Save", command$=$lambda: save$\_$options$($int$($row$\_$val.get$()),$ int$($col$\_$val.get$())))$

# Create a Button Widget in the Toplevel Window

close $=$ Button$($top$,$ text$=$"Close", command$=$lambda: close$\_$options$($top$))$

save. pack $($ pady$=5,$ side$=$TOP$)$

close. pack$($pady$=5,$ side$=$TOP$)$

Resets the game. Will clear, reshuffle and redraw the board

Parameters: buttons $-$ the global list of buttons

def reset$\_$game$()$:

global buttons

# Delete all buttons if any

for $b$ in buttons.values$()$:

b$.$BUTTON$\_$OBJ.destroy$()$

buttons $=\{\}$ # Clear the button dictionary

# Create all new buttons and add them to the button dictionary

for $i$ in range$($rows$)$:

for $j$ in range$($cols$)$:

id cols