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nim_game_bot.py
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nim_game_bot.py
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def computer_chooses_move(n, m):
#the computer always leaves a multiple of (m+1) pieces on the board, and if it can't, it just takes the maximum number of pieces
if m>=n:
return n
else:
for i in range(n, -1, -1):
for j in range(1, n):
if i == j*(m+1):
return n-i
def user_chooses_move(n, m):
while True:
global global_pieces_taken
global_pieces_taken = int(input("\nHow many pieces will you take? "))
if global_pieces_taken<=m and global_pieces_taken<=n and global_pieces_taken>0:
return global_pieces_taken
else:
print("\nOops! Unexpected move. Try again!")
def match():
print("\nWelcome to NIM game! Choose:")
game_mode = input("\n1 - Isolated match \n2 - Championship\n")
if game_mode == '1':
print("\n You chose an isolated match")
elif game_mode == '2':
print("\nYou chose a championship.")
computer = 0
user = 0
counter = 1
else:
print("\nUnexpected value. Please, choose from one of the two")
return False
while True:
if game_mode == '2' and counter == 4:
#checking if the championship is over
print("\n**** End of the championship! ****")
print("\nScoreboard: You", user, "X", computer,"Computer")
break
elif game_mode == '2':
#displaying the round number
print("\n**** Round",counter,"****")
n = int(input("\nHow many pieces? "))
m = int(input("Maximum of pieces per move? "))
if m<1 or n<1:
print("\nInvalid value. Choose a positive integer for both variables.")
continue
if n%(m+1) == 0:
#if n is multiple of (m+1), the user must begin so that the computer wins
c = 0
print("\nYou begin!")
while True:
c+=1
if c%2 ==0:
if computer_chooses_move(n, m) < 2:
print("\nThe computer took one piece.")
else:
print("\nThe computer took",computer_chooses_move(n, m),"pieces.")
n = n - computer_chooses_move(n, m)
if n == 0:
if game_mode == '1':
#if the game mode is an isolated match, there'll be one round only
print("\nEnd of the game. Computer wins!")
print("Thank you for playing!")
return True
elif game_mode == '2':
#if the game mode is a championship, it'll go to the next round
print("\nEnd of match. Computer wins!")
computer+=1
counter+=1
break
elif n < 2:
print("Now there is only one piece on the board.")
else:
print("Now there are",n,"pieces on the board.")
else:
if user_chooses_move(n, m) < 2:
print("\nYou took one piece.")
else:
print("\nYou took",global_pieces_taken, "pieces.")
n = n - global_pieces_taken
if n == 0:
return "how"
elif n < 2:
print("Now there is only one piece on the board.")
else:
print("Now there are",n,"pieces on the board.")
else:
#if n isn't multiple of (m+1), the computer must begin so that it wins
c = 0
print("\nThe computer begins!")
while True:
c+=1
if c%2 ==0:
if user_chooses_move(n, m) < 2:
print("\nYou took one piece.")
else:
print("\nYou took",global_pieces_taken, "pieces.")
n = n - global_pieces_taken
if n == 0:
return "how"
elif n < 2:
print("Now there is only one piece on the board.")
else:
print("Now there are",n, "pieces on the board.")
else:
if computer_chooses_move(n, m) < 2:
print("\nThe computer took one piece.")
else:
print("\nThe computer took",computer_chooses_move(n, m),"pieces.")
n = n - computer_chooses_move(n, m)
if n == 0:
if game_mode == '1':
print("\nEnd of the game. Computer wins!")
print("Thank you for playing!")
return True
elif game_mode == '2':
print("\nEnd of round. Computer wins!")
computer+=1
counter+=1
break
elif n < 2:
print("Now there is only one piece on the board.")
else:
print("Now there are",n, "pieces on the board.")
match()