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Re: [pygame] Two questions regarding a simple space shooter

....
    pygame.event.pump()
    keys = pygame.key.get_pressed()
    if K_LEFT in keys:
        ship.move_left()
...


get_pressed() returns a sequence of True/Falses, so K_LEFT will never
be in keys. You can use the K_constants to index into the returned
sequence, i.e:
if keys[K_LEFT]:
   ship_move_left()

I like this method better than checking KEYDOWN/KEYUP events. In the
arkanoid/pong clone I'm working on (this is the pygame "hello,
world!", apparently), I handled keyboard input something like this:


def handle_player_input(player, keymap):
   # keymap is the output from pygame.key.get_pressed()
   # player.moves is a dictionary that looks like { "up":K_UP,
"down":K_DOWN, etc. etc.}
   moves = player.moves
   dx, dy = 0, 0 #Resting
   if keymap[moves["up"]]:
       dy = -1
   elif keymap[moves["down"]]:
       dy = 1
   if keymap[moves["left"]]:
       dx = -1
   elif keymap[moves["right"]]:
       dx = 1
   if keymap[moves["fire"]]:
       pygame.event.post(Event(USEREVENT, {"code":"fire!",
"player":player, etc. }))
   return dx, dy

(I'm letting the paddle travel in two directions, so it's a little
more complicated. You could easily drop one of the dimensions if you
don't want it.)

(Fair warning -- I'm new to this myself, this might not be the best
way of doing things...)

Good luck!