from pygame import *
# This used to be pressalot, but now it's not - sorry!

init()
screen = display.set_mode((700, 1024))

class Player:
    def __init__(self):
        self.sprite = image.load("tank.png")
        self.rect = self.sprite.get_rect()
        self.vx = 0
        self.vy = 0

    def update_and_display(self):
        print self.vx
#        self.rect.centerx += self.vx
#        self.rect.centery += self.vy
        screen.blit(self.sprite, self.rect)

p = Player()

# Main Loop
while True:
    # Event processing (keys)
    for e in event.get():
        if e.type == KEYDOWN:
            if e.key == K_RIGHT:
                p.vx = 5
            if e.key == K_LEFT:
                p.vx = -5
            if e.key == K_UP:
                p.vy = 5
            if e.key == K_DOWN:
                p.vy = 5
            print p.rect.centerx, p.rect.centery
        if e.type == QUIT:
            from sys import exit
            exit()
    # Update positions and display
    screen.fill((255, 255, 255))
    p.update_and_display()
    display.flip()