title: Pygame moving objects while pressing key
body: <p>I have a problem moving the objects continuously while pressing a key.
  As far as I know, pygame events only trigger when receiving a new signal and that the key pressed is not a signal that continues with every frame. From the code below, when I press <kbd>w</kbd> for example, the object only moves when pressing and when releasing the key. I can't achieve the object to move as long as I keep pressing the key. I've also tried out the if statements by checking <code>event.key</code> instead of checking the <code>get_pressed()</code> list, but I came up with the same result.</p>
  
  <pre><code>while not crashed:
  for event in pygame.event.get():
      if event.type == pygame.QUIT:
          crashed = True
  
      keys = pygame.key.get_pressed()
      print(keys[pygame.K_w])
  
      if keys[pygame.K_w] and keys[pygame.K_d]:
          x_change = 3
          x += x_change
          y_change = -3
          y += y_change
      elif keys[pygame.K_w] and keys[pygame.K_a]:
          x_change = -3
          x += x_change
          y_change = -3
          y += y_change
      elif keys[pygame.K_s] and keys[pygame.K_d]:
          x_change = 3
          x += x_change
          y_change = 3
          y += y_change
      elif keys[pygame.K_s] and keys[pygame.K_a]:
          x_change = -3
          x += x_change
          y_change = 3
          y += y_change
  
      elif keys[pygame.K_a]:
          x_change = -3
          x += x_change
      elif keys[pygame.K_d]:
          x_change = 3
          x += x_change
      elif keys[pygame.K_w]:
          y_change = -3
          y += y_change
      elif keys[pygame.K_s]:
          y_change = 3
          y += y_change
  
  
      #ERASE OLD
      screen.fill(WHITE)
      #FILL NEW
      all_sprites_list.draw(screen)
      wall.changePosition(x,y)
      player.draw(start_x,start_y)
  
      pygame.display.update()
      clock.tick(60)
  </code></pre>