Pygame 表面位置似乎与屏幕上的位置不同？

Question

我正在尝试用 pygame 制作一个虚拟的 phone 类程序，只是为了试验一下，但我运行遇到了问题。我加载了一张图片，然后将其 blitt 到屏幕的左下方。但是当我执行 print(imagename.get_rect()) 时，它会在屏幕的 0, 0 处打印出一个位置。鼠标也在那里与之碰撞。我有什么不明白的？

def aloitus(): #goes back to the home screen
    cls() #clears the screen
    tausta = pygame.image.load("./pyhelin.png") #load background
    tausta = pygame.transform.scale(tausta, (360, 640)) #scale it 
    screen.blit(tausta, (0, 0)) #blit it
    alapalkki = pygame.Surface((600, 100)) #ignore
    alapalkki.set_alpha(120)
    alapalkki.fill(blonk)
    screen.blit(alapalkki, (0, 560))
    global messenger #this is the thing!
    messenger = pygame.image.load("./mese.png").convert_alpha() #load image
    print(messenger.get_rect()) #print its location
    messenger = pygame.transform.scale(messenger, (60,65)) #scale it to the correct size
    screen.blit(messenger, (10, 570)) # blit on the screen
    update() #update screen
aloitus() # at the start of the program, go to the home screen
while loop: #main loop
    for event in pygame.event.get():
         if event.type == pygame.MOUSEBUTTONDOWN:
            # Set the x, y postions of the mouse click
            x, y = event.pos
            if messenger.get_rect().collidepoint(x, y): #messenger is the image defined earlier
                #do things
                print("hi")

预期的结果是，当点击图像时 "hi" 将被打印出来。实际结果是当点击左上角时打印出 hi。

Answer 1

get_rect returns a pygame.Rect 具有默认的左上角坐标 (0, 0)。您需要在之后设置坐标或将它们作为关键字参数传递给 get_rect.

我建议将矩形分配给另一个变量并以下列方式之一设置坐标：

messenger_rect = messenger.get_rect()
messenger_rect.x = 100
messenger_rect.y = 200
# or
messenger_rect.topleft = (100, 200)
# or pass the coords as an argument to `get_rect`
messenger_rect = messenger.get_rect(topleft=(100, 200))

还有更多 rect attributes 可以分配坐标：

x,y
top, left, bottom, right
topleft, bottomleft, topright, bottomright
midtop, midleft, midbottom, midright
center, centerx, centery

Pygame 表面位置似乎与屏幕上的位置不同？

Pygame surface location seems to be different than what it is on the screen?

python

pygame

pygame-surface