我的球拍;在我翻拍的《乒乓球》中,我没有在python中移动



我改变了代码的方式,现在我的球拍停止了移动。有人知道为什么吗?忽略球,现在,我还没有完成编码。在我更改代码之前,我没有定义我的形状,只是画了它们。既然我定义了它们,什么都不会动。我只包含了相关代码。

rectY1 = 240
rectY2 = 240
Y1change = 0
Y2change = 0
ballX = 320
ballY = 240
ballXvel = 0
ballYvel = 0
paddle1 = pygame.Rect(18,rectY1,10,120)
paddle2 = pygame.Rect(620,rectY2,10,120)
ball = pygame.Rect(ballX,ballY,30,30)
def drawshapes():   
pygame.draw.rect(DISPLAY, WHITE, paddle1)
pygame.draw.rect(DISPLAY, WHITE, paddle2)
pygame.draw.rect(DISPLAY, WHITE, ball)
DISPLAY = pygame.display.set_mode((640,480),0,32)
while True:
for event in pygame.event.get():
if event.type==QUIT:
pygame.quit()
sys.exit()
if event.type == KEYDOWN :
if event.key == K_SPACE :
ballXvel += 10
ballYvel += 10
keys = pygame.key.get_pressed()
Y1change = 0
Y2change = 0
#make paddles move
if keys[K_UP]:
Y2change -= 10
if keys[K_DOWN]:
Y2change += 10
if keys[ord('w')]:
Y1change -= 10
if keys[ord('s')]:
Y1change += 10
#stop paddles at edges 
if rectY1 < 5 :
rectY1 = 5
if rectY1 > 355 :
rectY1 = 355
if rectY2 < 5 :
rectY2 = 5
if rectY2 > 355 :
rectY2 = 355
ballX += ballXvel
ballY += ballYvel
rectY1 += Y1change
rectY2 += Y2change
DISPLAY.fill(BLACK)
drawshapes()
pygame.display.update()
fpsClock.tick(FPS)

代码从不更新Paddlerect。当然,rectY1rectY2被更新,但这从未应用于paddle1paddle2

drawshapes()之前,将更改应用于桨板矩形:

rectY1 += Y1change
rectY2 += Y2change
paddle1.y = rectY1   # <-- HERE - Update the paddle's rect
paddle2.y = rectY2   #            which is used to draw it
DISPLAY.fill(BLACK)

但我认为,如果你的代码直接跟踪paddle1.xpaddle1.y等上的更改,它会更简单

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