如何在 Pygame 中移动 Sprite

我试图让我的图像（鸟）在屏幕上上下移动，但我不知道该怎么做，这就是我尝试过的，我确定它已经消失了，但我试图弄清楚是否有人可以提供帮助伟大的！

import pygame
import os

screen = pygame.display.set_mode((640, 400))

running = 1

while running:
    event = pygame.event.poll()
    if event.type == pygame.QUIT:
        running = 0
    screen.fill([255, 255, 255])
    clock = pygame.time.Clock()
    clock.tick(0.5)
    pygame.display.flip()

    bird = pygame.image.load(os.path.join('C:\Python27', 'player.png'))
    screen.blit( bird, ( 0, 0 ) )

    pygame.display.update()

class game(object):
    def move(self, x, y):
        self.player.center[0] += x
        self.player.center[1] += y


    if event.key == K_UP:
        player.move(0,5)
    if event.key == K_DOWN:
        player.move(0,-5)

game()

我试图让它在按下向下按钮时向下移动，在按下向上键时向上移动

正如 ecline6 所说，在这一点上，bird 是你最不用担心的。

考虑阅读这本书 http://inventwithpython.com/makinggames.pdf..

现在，首先让我们清理您的代码......

import pygame
import os

# let's address the class a little later..

pygame.init()
screen = pygame.display.set_mode((640, 400))
# you only need to call the following once,so pull them out of the  while loop.
bird = pygame.image.load(os.path.join('C:\Python27', 'player.png'))
clock = pygame.time.Clock()

running = True
while running:
    event = pygame.event.poll()
    if event.type == pygame.QUIT:
        running = False

    screen.fill((255, 255, 255)) # fill the screen
    screen.blit(bird, (0, 0))    # then blit the bird

    pygame.display.update() # Just do one thing, update/flip.

    clock.tick(40) # This call will regulate your FPS (to be 40 or less)

现在你的“鸟”不动的原因是：
当你 blit 图像时，即：screen.blit(bird, (0, 0)),
The (0,0)是恒定的，所以不会移动。

这是最终的代码，其中包含您想要的输出（尝试一下）并阅读注释：

import pygame
import os

# it is better to have an extra variable, than an extremely long line.
img_path = os.path.join('C:\Python27', 'player.png')

class Bird(object):  # represents the bird, not the game
    def __init__(self):
        """ The constructor of the class """
        self.image = pygame.image.load(img_path)
        # the bird's position
        self.x = 0
        self.y = 0

    def handle_keys(self):
        """ Handles Keys """
        key = pygame.key.get_pressed()
        dist = 1 # distance moved in 1 frame, try changing it to 5
        if key[pygame.K_DOWN]: # down key
            self.y += dist # move down
        elif key[pygame.K_UP]: # up key
            self.y -= dist # move up
        if key[pygame.K_RIGHT]: # right key
            self.x += dist # move right
        elif key[pygame.K_LEFT]: # left key
            self.x -= dist # move left

    def draw(self, surface):
        """ Draw on surface """
        # blit yourself at your current position
        surface.blit(self.image, (self.x, self.y))


pygame.init()
screen = pygame.display.set_mode((640, 400))

bird = Bird() # create an instance
clock = pygame.time.Clock()

running = True
while running:
    # handle every event since the last frame.
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit() # quit the screen
            running = False

    bird.handle_keys() # handle the keys

    screen.fill((255,255,255)) # fill the screen with white
    bird.draw(screen) # draw the bird to the screen
    pygame.display.update() # update the screen

    clock.tick(40)