import random

import pygame


class Game:

    SIZE = (500, 500)
    FPS = 30

    def __init__(self):
        self.screen = None
        self.clock = pygame.time.Clock()

    def run(self):
        self.init_game()
        self.game_loop()
        self.exit_game()

    def init_game(self):
        random.seed()
        pygame.init()

    def set_screen(self):
        if self.screen is None:
            self.screen = pygame.display.set_mode(Game.SIZE)
            self.screen.fill((0, 0, 0))
        return self.screen

    def game_loop(self):
        while True:
            if not self.event_handling():
                break
            if not self.update_game():
                break
            self.draw_game()
            self.clock.tick(self.FPS)

    def event_handling(self):
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return False
        keys = pygame.key.get_pressed()
        # TODO: implement key events
        return True

    def update_game(self):
        # TODO: implement game logic
        return True

    def draw_game(self):
        pygame.display.flip()

    def exit_game(self):
        pygame.quit()