pygame_a_primer_on_game_programming_in_python_by_realpython..1.py

# Import the pygame module
import pygame

# Import pygame.locals for easier access to key coordinates
# Updated to conform to flake8 and black standards
from pygame.locals import (
    K_UP,
    K_DOWN,
    K_LEFT,
    K_RIGHT,
    K_ESCAPE,
    KEYDOWN,
    QUIT,
)

# Define constants for the screen width and height
SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("My First Sprite Player Ever")

# Define a player object by extending pygame.sprite.Sprite
# The surface drawn on the screen is now an attribute of 'player'
class Player(pygame.sprite.Sprite):
    def __init__(self):
        super(Player, self).__init__()
        self.surf = pygame.Surface((75, 25))
        self.surf.fill((255, 255, 255))
        self.rect = self.surf.get_rect()

# Initialize pygame
pygame.init()

# Create the screen object
# The size is determined by the constant SCREEN_WIDTH and SCREEN_HEIGHT
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))

# Instantiate player. Right now, this is just a rectangle.
player = Player()

# Variable to keep the main loop running
running = True

# Main loop
while running:
    # for loop through the event queue
    for event in pygame.event.get():
        # Check for KEYDOWN event
        if event.type == KEYDOWN:
            # If the Esc key is pressed, then exit the main loop
            if event.key == K_ESCAPE:
                running = False
        # Check for QUIT event. If QUIT, then set running to false.
        elif event.type == QUIT:
            running = False

    # Fill the screen with black
    screen.fill((0, 0, 0))

    # Draw the player on the screen
    screen.blit(player.surf, (SCREEN_WIDTH/2, SCREEN_HEIGHT/2))

    # Update the display
    pygame.display.flip()