Question

我正在制作蛇游戏，而我的问题是要理解为什么在使用lead_x_change增量并导致仅将lead_x增加+10或事件的情况下，使用波纹管代码会不断向lead_x值添加-10或+10的原因。 -10一次1个活动？谢谢。

import pygame
pygame.init()

#Colors
white= (255,255,255)
black=(0,0,0)
red= (255,0,0)

gameDisplay= pygame.display.set_mode((800,600))
pygame.display.set_caption('ALIEN')

gameExit= False

lead_x=300
lead_y=300
lead_x_change=0

while not gameExit:
    for event in pygame.event.get():

        if event.type==pygame.QUIT:
            gameExit=True

        if event.type==pygame.KEYDOWN:

            if event.key== pygame.K_LEFT:
               lead_x_change =-1
            if event.key==pygame.K_RIGHT:
                lead_x_change = 1

    lead_x += lead_x_change   

    gameDisplay.fill(white)
    pygame.draw.rect(gameDisplay,black,[lead_x,lead_y,10,10])
    pygame.display.update()





pygame.quit()
quit()

Answer 1

尝试这样的事情

import pygame
pygame.init()

#Colors
white= (255,255,255)
black=(0,0,0)
red= (255,0,0)

gameDisplay= pygame.display.set_mode((800,600))
pygame.display.set_caption('ALIEN')

gameExit= False

lead_x=300
lead_y=300
lead_x_change=0

while not gameExit:
    for event in pygame.event.get():

        if event.type==pygame.QUIT:
            gameExit=True

        if event.type==pygame.KEYDOWN:

            if event.key== pygame.K_LEFT:
               lead_x_change =-1
            if event.key==pygame.K_RIGHT:
                lead_x_change = 1

        if event.type==pygame.KEYUP:

                if event.key== pygame.K_LEFT:
                    lead_x_change = 0

                if event.key== pygame.K_RIGHT:
                    lead_x_change = 0




    lead_x += lead_x_change   

    gameDisplay.fill(white)
    pygame.draw.rect(gameDisplay,black,[lead_x,lead_y,10,10])
    pygame.display.update()





pygame.quit()
quit()

Pygame（物体连续运动）

1 个答案: