import pygame, sys

# Basics
pygame.init()
clock = pygame.time.Clock()
screen_width, screen_height = 800, 800
screen = pygame.display.set_mode((screen_width, screen_height))

class Player(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = pygame.Surface((100, 100))
        self.image.fill((255, 255, 255))
        self.rect = self.image.get_rect(center=(screen_width/2, screen_height/2))

player = Player()
player_group = pygame.sprite.Group()
player_group.add(player)

# Game Loop
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    # Drawing