[英]Python 3.4 Pygame My sprite does not appear
我編寫了簡單的代碼來獲得一個綠色塊,這是我的精靈在屏幕上滾動。 游戲開始時,精靈將顯示在屏幕中央,但是,當我運行代碼時,屏幕只是黑色,除非單擊窗口上的x叉以退出屏幕,否則不會出現綠色塊,然后在關閉窗口時顯示一秒鍾。 關於如何解決這個問題的任何想法。
import pygame, random
WIDTH = 800 #Size of window
HEIGHT = 600 #size of window
FPS = 30
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
class Player(pygame.sprite.Sprite):
#sprite for the player
def __init__(self):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((50, 50))
self.image.fill(GREEN)
self.rect = self.image.get_rect()
self.rect.center = (WIDTH/2, HEIGHT/2)
def update(self):
self.rect.x += 5
#initialize pygame and create window
pygame.init()
pygame.mixer.init()
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("My Game")
clock = pygame.time.Clock()
all_sprites = pygame.sprite.Group()
player = Player()
all_sprites.add(player)
#Game loop
running = True
while running:
clock.tick(FPS)
for event in pygame.event.get():
#check for closing window
if event.type == pygame.QUIT:
running = False
#update
all_sprites.update()
#Render/Draw
screen.fill(BLACK)
all_sprites.draw(screen)
pygame.display.flip()
pygame.quit()
所有用於更新精靈,填充屏幕並繪制精靈的代碼都在主循環之外( while running
)
您必須牢記identification Python的語法:您的命令就在您的主循環之外。
此外,我強烈建議將mainloop放在適當的函數中,而不是僅將其保留在模塊根目錄下。
...
#Game loop
running = True
while running:
clock.tick(FPS)
for event in pygame.event.get():
#check for closing window
if event.type == pygame.QUIT:
running = False
#update
all_sprites.update()
#Render/Draw
screen.fill(BLACK)
all_sprites.draw(screen)
pygame.display.flip()
pygame.quit()
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