tkinkerでライフゲームを作ってみた

import tkinter as tk

# ゲームの設定
GRID_SIZE = 50
CELL_SIZE = 10
DELAY = 100  # ミリ秒

# グローバル変数
grid = [[0] * GRID_SIZE for _ in range(GRID_SIZE)]
next_grid = [[0] * GRID_SIZE for _ in range(GRID_SIZE)]
running = False

# グリッドの初期化
def initialize_grid():
    for i in range(GRID_SIZE):
        for j in range(GRID_SIZE):
            grid[i][j] = 0

# グリッドの描画
def draw_grid():
    canvas.delete('rect')
    for i in range(GRID_SIZE):
        for j in range(GRID_SIZE):
            x1 = i * CELL_SIZE
            y1 = j * CELL_SIZE
            x2 = x1 + CELL_SIZE
            y2 = y1 + CELL_SIZE
            if grid[i][j] == 1:
                canvas.create_rectangle(x1, y1, x2, y2, fill='black', tags='rect')

# ライフゲームのルールに基づいて次の世代のグリッドを計算
def compute_next_generation():
    for i in range(GRID_SIZE):
        for j in range(GRID_SIZE):
            count = count_neighbors(i, j)
            if grid[i][j] == 1:
                if count < 2 or count > 3:
                    next_grid[i][j] = 0
                else:
                    next_grid[i][j] = 1
            else:
                if count == 3:
                    next_grid[i][j] = 1
                else:
                    next_grid[i][j] = 0

# 指定されたセルの周囲の生きているセルの数をカウント
def count_neighbors(row, col):
    count = 0
    for i in range(-1, 2):
        for j in range(-1, 2):
            if i == 0 and j == 0:
                continue
            if row + i < 0 or row + i >= GRID_SIZE or col + j < 0 or col + j >= GRID_SIZE:
                continue
            if grid[row + i][col + j] == 1:
                count += 1
    return count

# ゲームの状態を進める
def step():
    compute_next_generation()
    for i in range(GRID_SIZE):
        for j in range(GRID_SIZE):
            grid[i][j] = next_grid[i][j]
    draw_grid()
    if running:
        root.after(DELAY, step)

# セルをクリックしたときの処理
def cell_clicked(event):
    x = event.x // CELL_SIZE
    y = event.y // CELL_SIZE
    if grid[x][y] == 0:
        grid[x][y] = 1
    else:
        grid[x][y] = 0
    draw_grid()

# ゲームの開始と停止
def toggle_game():
    global running
    running = not running
    if running:
        start_button.config(text='停止')
        step()
    else:
        start_button.config(text='開始')

# ウィンドウの作成
root = tk.Tk()
root.title('ライフゲーム')

# キャンバスの作成
canvas_width = GRID_SIZE * CELL_SIZE
canvas_height = GRID_SIZE * CELL_SIZE
canvas = tk.Canvas(root, width=canvas_width, height=canvas_height)
canvas.bind('', cell_clicked)
canvas.pack()

# ボタンの作成
button_frame = tk.Frame(root)
button_frame.pack()
start_button = tk.Button(button_frame, text='開始', command=toggle_game)
start_button.pack(side='left')
reset_button = tk.Button(button_frame, text='リセット', command=initialize_grid)
reset_button.pack(side='left')

# グリッドの初期化と描画
initialize_grid()
draw_grid()

# ゲームのメインループを開始
root.mainloop()