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advanced_game.py

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+#!python
+import random, argparse
+from __future__ import print_function # this make `print` execusible on python 2
+
+# Tic Tac Toe Game with AI
+# This is a simple implementation of Tic Tac Toe where the player can play against an AI.
+
+# we use a nested list to represent the board
+# in which each cell can be 0 (empty), 1 (player), or -1 (AI)
+# but when we print the board, we will use ' ' for empty, 'X' for player, and 'O' for AI
+def print_cell(value):
+    if value == 0:
+        return ' '
+    elif value == 1:
+        return 'X'
+    elif value == -1:
+        return 'O'
+
+def create_board():
+    return [[0 for _ in range(3)] for _ in range(3)]
+
+def print_board(board):
+    print("Current board:")
+    for row in board:
+        print("|".join(print_cell(cell) for cell in row))
+        print("-" * 5)
+
+def check_winner(board):
+    # Check rows, columns, and diagonals for a winner
+    for i in range(3):
+        if abs(sum(board[i])) == 3:  # Check rows
+            return board[i][0]
+        if abs(sum(board[j][i] for j in range(3))) == 3:  # Check columns
+            return board[0][i]
+
+    if abs(board[0][0] + board[1][1] + board[2][2]) == 3:  # Check main diagonal
+        return board[0][0]
+    if abs(board[0][2] + board[1][1] + board[2][0]) == 3:  # Check anti-diagonal
+        return board[0][2]
+
+    return 0  # No winner yet
+
+def is_board_full(board):
+    return all(cell != 0 for row in board for cell in row)
+
+def get_empty_cells(board):
+    return [(i, j) for i in range(3) for j in range(3) if board[i][j] == 0]
+
+def random_ai_move(board):
+    empty_cells = get_empty_cells(board)
+    if not empty_cells:
+        return None
+
+    # AI chooses a random empty cell
+    i, j = random.choice(empty_cells)
+    board[i][j] = -1  # AI marks its move
+    return i, j
+
+def advanced_ai_move(board):
+    # This function implements a simple AI that tries to win or block the player
+    for i in range(3):
+        for j in range(3):
+            if board[i][j] == 0:  # Check if the cell is empty
+                # Try to place AI's mark and check for a win
+                board[i][j] = -1
+                if check_winner(board) == -1:
+                    return i, j  # AI wins
+                board[i][j] = 0  # Reset the cell
+
+    # Block player's winning move
+    for i in range(3):
+        for j in range(3):
+            if board[i][j] == 0:  # Check if the cell is empty
+                board[i][j] = 1
+                if check_winner(board) == 1:
+                    board[i][j] = -1  # Block player's move
+                    return i, j
+                board[i][j] = 0  # Reset the cell
+
+    return random_ai_move(board)  # If no immediate win or block, choose randomly
+
+def player_move(board):
+    while True:
+        try:
+            move = input("Enter your move (row and column, e.g., 1 2): ")
+            i, j = map(int, move.split())
+            if board[i][j] == 0:  # Check if the cell is empty
+                board[i][j] = 1  # Player marks its move
+                return i, j
+            else:
+                print("Cell already taken. Try again.")
+        except (ValueError, IndexError):
+            print("Invalid input. Please enter row and column as two numbers between 0 and 2.")
+
+def main():
+    parser = argparse.ArgumentParser(description="Play Tic Tac Toe against an AI.")
+    parser.add_argument("--ai", action="store_true", help="Use advanced AI instead of random AI")
+    board = create_board()
+    print_board(board)
+    if parser.parse_args().ai:
+        ai_move = advanced_ai_move
+        print("Playing against advanced AI.")
+    else:
+        ai_move = random_ai_move
+        print("Playing against random AI.")
+    print("Welcome to Tic Tac Toe!")
+    print("You are 'X' and the AI is 'O'.")
+    while True:
+        # Player's turn
+        player_move(board)
+        print_board(board)
+        if check_winner(board) == 1:
+            print("You win!")
+            break
+        if is_board_full(board):
+            print("It's a draw!")
+            break
+
+        # AI's turn
+        ai_move(board)
+        print_board(board)
+        if check_winner(board) == -1:
+            print("AI wins!")
+            break
+        if is_board_full(board):
+            print("It's a draw!")
+            break
+    print("Game over!")
+if __name__ == "__main__":
+
+    main()