move_rect.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

__author__ = "ipetrash"


# SOURCE: http://www.nerdparadise.com/programming/pygame/part1

# pip install pygame
import pygame


pygame.init()
screen = pygame.display.set_mode((400, 300))

game_active = True
is_blue = True
x = 100
y = 100

clock = pygame.time.Clock()

while game_active:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_active = False
            break

        if event.type == pygame.KEYDOWN and event.key == pygame.K_SPACE:
            is_blue = not is_blue
            break

    pressed = pygame.key.get_pressed()

    # If Esc clicked
    if pressed[pygame.K_ESCAPE] or not game_active:
        break

    if pressed[pygame.K_UP] or pressed[pygame.K_w]:
        y -= 3

    if pressed[pygame.K_DOWN] or pressed[pygame.K_s]:
        y += 3

    if pressed[pygame.K_LEFT] or pressed[pygame.K_a]:
        x -= 3

    if pressed[pygame.K_RIGHT] or pressed[pygame.K_d]:
        x += 3

    screen.fill((0, 0, 0))

    color = (0, 128, 255) if is_blue else (255, 100, 0)
    pygame.draw.rect(screen, color, pygame.Rect(x, y, 60, 60))

    pygame.display.flip()

    pygame.display.set_caption(f"move_rect [{int(clock.get_fps())} fps]")

    # will block execution until 1/60 seconds have passed
    # since the previous time clock.tick was called.
    clock.tick(60)