why when I put the second argument of the blit() method with surf.get_rect() the image becomes in the upper left corner of the screen? When I change the integer value it remains at the top left corner of the screen ... but when I replace the argument with (SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2) it changes place to almost in the middle of the screen
import pygame from pygame.locals import ( K_UP, K_DOWN, K_LEFT, K_RIGHT, K_ESCAPE, KEYDOWN, QUIT, ) SCREEN_WIDTH = 800 SCREEN_HEIGHT = 600 class Player(pygame.sprite.Sprite): def __init__(self): super().__init__() self.surf = pygame.Surface((75, 25)) self.surf.fill((255, 255, 255)) self.rect = self.surf.get_rect() pygame.init() screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) player = Player() running = True while running: for event in pygame.event.get(): if event.type == KEYDOWN: if event.key == K_ESCAPE: running = False elif event.type == QUIT: running = False screen.fill((0, 0, 0)) screen.blit(player.surf, (SCREEN_WIDTH/2, SCREEN_HEIGHT/2)) pygame.display.flip() pygame.quit()