Question

import pygame
# Some colors
GREEN = ( 0,255,0)
BLUE = ( 0, 0, 255)
WHITE = ( 255, 255, 255)
BLACK = ( 0, 0, 0)
pygame.init()
clock = pygame.time.Clock()
#Screen
SCREEN = pygame.display.set_mode([1000,700])
#Title
pygame.display.set_caption("Trying to move things")

#Variables
x_position = 100
y_position = 100
x_speed = 0
y_speed = 0
#Positions
image_image_positions = [x_position,y_position]


#Graphics
image_image = pygame.image.load("izzat.png").convert()
image_image.set_colorkey(BLACK)


#Main loop ____
done = False

while not done:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            done = True
    # Keyboard commands.

        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                y_speed = -5
            elif event.key == pygame.K_DOWN:
                y_speed = 5
            elif event.key == pygame.K_w:
                x_speed = -5
            elif event.key == pygame.K_s:
                x_speed = 5
        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                x_speed = 0
            elif event.key == pygame.K_UP or event.key == pygame.K_DOWN:
                y_speed = 0
            elif event.key == pygame.K_w or event.key == pygame.K_s:
                x_speed += 0
    if y_position + y_speed >=0 and y_position + y_speed + 60 <=500:
        y_position += y_speed
    x_position += x_speed


    SCREEN.fill(GREEN)
    SCREEN.blit(image_image, image_image_positions)
    print(x_position)
    print(y_position)


    pygame.display.flip()
    clock.tick(60)


pygame.quit()

你好，我遇到了一个我真的不高兴的问题，因为我一直试图修复它一段时间。所以基本上我有一个图像，我希望根据键盘输入移动图像，但无论我尝试什么都没有用。然后我想知道也许y和x位置根本没有变化，这就是为什么图像位置没有变化，我确实打印（那些位置）但它的位置肯定在变化，变量，所以我不知道怎么样图像位置根本不会改变。然后我想也许是因为它是一个元组，所以我把它改成了括号，这也没用。我只是不明白为什么如果图像位置的变量发生变化，我的图像位置不会移动。如果你能以任何方式帮助我，谢谢你。我看了这个，但我找不到任何帮助。如果你帮助我，谢谢你的帮助！

更新__________ 好吧显然，尽管我打印了image_image_position的位置时变量发生了变化，但image_image_position保持不变。有没有办法改变它们而不是让它们一直保持在100,100并且随着变量的变化而变化？

Answer 1

您尚未指定速度。

image_image_positions [0] = xspeed image_image_positions [1] = yspeed

Answer 2

您只是更改了变量yspeed和xspeed，但您没有设置图像的实际位置。在blit：

之前添加以下行

image_image_positions = [x_position,y_position]

完整代码：

import pygame
# Some colors
GREEN = ( 0,255,0)
BLUE = ( 0, 0, 255)
WHITE = ( 255, 255, 255)
BLACK = ( 0, 0, 0)
pygame.init()
clock = pygame.time.Clock()
#Screen
SCREEN = pygame.display.set_mode([1000,700])
#Title
pygame.display.set_caption("Trying to move things")

#Variables
x_position = 100
y_position = 100
x_speed = 0
y_speed = 0
#Positions
image_image_positions = [x_position,y_position]


#Graphics
image_image = pygame.image.load("izzat.png").convert()
image_image.set_colorkey(BLACK)


#Main loop ____
done = False

while not done:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            done = True
    # Keyboard commands.

        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                y_speed = -5
            elif event.key == pygame.K_DOWN:
                y_speed = 5
            elif event.key == pygame.K_w:
                x_speed = -5
            elif event.key == pygame.K_s:
                x_speed = 5
        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                x_speed = 0
            elif event.key == pygame.K_UP or event.key == pygame.K_DOWN:
                y_speed = 0
            elif event.key == pygame.K_w or event.key == pygame.K_s:
                x_speed += 0
    if y_position + y_speed >=0 and y_position + y_speed + 60 <=500:
        y_position += y_speed

    x_position += x_speed

    image_image_positions = [x_position,y_position]
    SCREEN.fill(GREEN)
    SCREEN.blit(image_image, image_image_positions)
    print(x_position)
    print(y_position)


    pygame.display.flip()
    clock.tick(60)


pygame.quit()

Answer 3

在更新x / y位置时，这不会改变图像的绘制位置：

    SCREEN.blit(image_image, image_image_positions)

image_image_positions，在您的应用程序的整个生命周期内（除启动之外）永远不会更改。

要解决此问题，只需将更新添加到循环中：

image_image_positions = [x_position,y_position]

图像不适合我的生活

3 个答案: