import copy
import pygame

pygame.init()
size = 420, 420
screen = pygame.display.set_mode(size)
clock = pygame.time.Clock()


class Board:
    # создание поля
    def __init__(self, width, height):
        self.width = width
        self.height = height
        self.board = [[0] * width for _ in range(height)]
        # значения по умолчанию
        self.left = 10
        self.top = 10
        self.cell_size = 30

    def render(self):
        for y in range(self.height):
            for x in range(self.width):
                pygame.draw.rect(screen, pygame.Color(255, 255, 255),
                                 (x * self.cell_size + self.left, y * self.cell_size + self.top, self.cell_size,
                                  self.cell_size), 1)

    # настройка внешнего вида
    def set_view(self, left, top, cell_size):
        self.left = left
        self.top = top
        self.cell_size = cell_size

    # cell - кортеж (x, y)
    def on_click(self, cell):
        # заглушка для реальных игровых полей
        pass

    def get_cell(self, mouse_pos):
        cell_x = (mouse_pos[0] - self.left) // self.cell_size
        cell_y = (mouse_pos[1] - self.top) // self.cell_size
        if cell_x < 0 or cell_x >= self.width or cell_y < 0 or cell_y >= self.height:
            return None
        return cell_x, cell_y

    def get_click(self, mouse_pos):
        cell = self.get_cell(mouse_pos)
        if cell and cell < (self.width, self.height):
            self.on_click(cell)


class Lines(Board):
    def __init__(self, width, height):
        super().__init__(width, height)
        self.selected_cell = None

board = Lines(10, 10)
board.set_view(10, 10, 40)

ticks = 0

running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        if event.type == pygame.MOUSEBUTTONDOWN:
            board.get_click(event.pos)

    screen.fill((0, 0, 0))
    board.render()
    if ticks == 50:
        ticks = 0
    pygame.display.flip()
    clock.tick(50)
    ticks += 1
pygame.quit()