Update TicTacToe.py

Python/TicTacToe.py

@@ -1,51 +1,51 @@
 board = [" "," "," ",
          " "," "," ",
-         " "," "," ",]
-def print_board():
+         " "," "," ",]         # the "=" assignment operator assigns the board design to the variable "board" 
+def print_board():     # defines the function print_board - uses the defined variable "board" to create the board
     print("-------------")
-    print("|",board[0],"|",board[1],"|",board[2],"|")
+    print("|",board[0],"|",board[1],"|",board[2],"|") 
     print("-------------")
     print("|",board[3],"|",board[4],"|",board[5],"|")
     print("-------------")
     print("|",board[6],"|",board[7],"|",board[8],"|")
     print("-------------")
 
 def check_winner(player):
-    for i in range(3):
+    for i in range(3): # checking to see if the vertical column has equal values - vertical win 
         if board[i]==board[i+3]==board[i+6]==player :
             return True
-    for i in range(0,9,3):
+    for i in range(0,9,3): # checking to see if the horizontal column has equal values - horizontal win 
         if board[i]==board[i+1]==board[i+2]==player :
             return True
-    if board[0]==board[4]==board[8]==player :
+    if board[0]==board[4]==board[8]==player : # checking for diagonal win from top left to bottom right 
             return True
-    if board[2]==board[4]==board[5]==player :
+    if board[2]==board[4]==board[6]==player : # checking for diagnoal win from top right top bottom left
             return True
     return False
 
 def start_game():
-     print("Welcome to TicTacToe")
-     print_board()
+     print("Welcome to TicTacToe") # welcome message 
+     print_board() # prints the initial blank board 
      player="X"
-     while True:
-        n=int(input("player "+player+" can make a move (Enter the num between 1-9) :"))-1
-        if board[n] == " ":
+     while True: # continues game until there is a winner/tie
+        n=int(input("player "+player+" can make a move (Enter the num between 1-9) :"))-1 # asking player where they want to mark the grid 
+        if board[n] == " ": # allows player to make move if that spot is blank 
             board[n]=player
         else :
-            print("Invalid move, try again!!")
+            print("Invalid move, try again!!") # won't let player make move if spot is taken 
             continue
-        if check_winner(player) == True:
+        if check_winner(player) == True: # uses the defined function "check_winner" to check if player has won 
              print("Congratution player",player,"won the game!!")
              break
-        if " " not in board:
+        if " " not in board: # no empty spaces left, so it's a tie 
              print("It is a tie!!")
              break
-        if(player=="X"):
+        if(player=="X"): # switches from player X to player O
              player="O"
         else :
              player="X"
-        print_board()
-start_game()
+        print_board() # updates board after each move 
+start_game() # calls the start_game function to start the game