Tic Tac Toe ChatGPT

extends GridContainer

# Define the state of the board (empty, player, or AI)
var board = ["", "", "", "", "", "", "", "", ""]
var player_turn = true  # True for player, false for AI

# Constants for identifying players
const PLAYER_MARK = "X"
const AI_MARK = "O"

func _ready():
    for i in range(9):
        var cell = get_node("Cell_" + str(i))  # Get each button by name
        cell.text = ""
        if not cell.is_connected("pressed", Callable(self, "_on_cell_pressed").bind(i)):
            cell.connect("pressed", Callable(self, "_on_cell_pressed").bind(i))

func _on_cell_pressed(index = -1):
    if index == -1:
        # Get the button that emitted the signal
        var cell = get_tree().current_scene.focus_owner
        index = int(cell.name.split("_")[1])
    if player_turn and board[index] == "":
        board[index] = PLAYER_MARK
        update_board()
        if check_winner():
            display_winner(PLAYER_MARK)
            return
        player_turn = false
        ai_move()


func ai_move():
    # Simple AI: pick the first empty spot
    for i in range(9):
        if board[i] == "":
            board[i] = AI_MARK
            update_board()
            if check_winner():
                display_winner(AI_MARK)
            break
    player_turn = true

func update_board():
    # Update button text based on the board state
    for i in range(9):
        var cell = get_node("Cell_" + str(i))
        cell.text = board[i]

func check_winner() -> bool:
    var win_positions = [
        [0, 1, 2], [3, 4, 5], [6, 7, 8], # Rows
        [0, 3, 6], [1, 4, 7], [2, 5, 8], # Columns
        [0, 4, 8], [2, 4, 6]             # Diagonals
    ]
    for line in win_positions:
        if board[line[0]] != "" and board[line[0]] == board[line[1]] and board[line[1]] == board[line[2]]:
            return true
    return false

func display_winner(winner):
    print(winner + " wins!")
    reset_game()

func reset_game():
    board = ["", "", "", "", "", "", "", "", ""]
    update_board()
    player_turn = true