game.py

#!/usr/bin/python
# encoding: utf-8
"""
here is the docstring
"""
__author__ = 'Ernest'
 
import pygame
import sys
from pygame.locals import *
pygame.init()
 
background = pygame.image.load("sky.jpg")
w = background.get_rect().w
h = background.get_rect().h
screen = pygame.display.set_mode((50, 50))
clock = pygame.time.Clock()
 
block = pygame.Surface((50, 50))
green = Color(0, 250, 0)
block.fill(green)
x = 200
y = 200
xspeed = 0
yspeed = 0
xmoveflag = False
ymoveflag = False
 
while True:
    clock.tick(30)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            exit()
 
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                xmoveflag = True
                xspeed = 5
            if event.key == pygame.K_LEFT:
                xmoveflag = True
                xspeed = -5
 
            if event.key == pygame.K_UP:
                ymoveflag = True
                yspeed = -5
            if event.key == pygame.K_DOWN:
                ymoveflag = True
                yspeed = 5
 
        if event.type == pygame.KEYUP:
            xmoveflag = False
            ymoveflag = False
 
    if xmoveflag == True:
        x = x + xspeed
    if ymoveflag == True:
        y = y + yspeed
 
    screen.blit(background, (0, 0))
    screen.blit(block, (x, y))
    pygame.display.flip()