在pygame中移动时对象闪烁答案

【问题标题】：Object is flickering while moving in pygame在pygame中移动时对象闪烁
【发布时间】：2021-06-23 16:16:55
【问题描述】：

我正在尝试在这里使用 pygame 创建游戏，当对象移动时它闪烁我尝试了 screen.fill () 和 update () 但没有任何效果。此问题可能会重复，但与此问题相关的答案无效

import pygame, sys,random


def create_block():
    global rand_block
    rand_block_rect=rand_block.get_rect(topleft = (random.choice(blck_pos),-20))
    return rand_block_rect

def move_block(blocks):
    for block in blocks:
        block.centery+=5
    return blocks
def draw_block(blocks):
    for block in blocks:
        screen.blit(rand_block,block)

pygame.init()
screen = pygame.display.set_mode((500, 600))
screen.fill((255, 255, 255))
clock=pygame.time.Clock()


# blocks
blocks={
    1:pygame.image.load('blocks/BLOCK L.png'),
    2:pygame.image.load('blocks/BLOCK S.png'),
    3:pygame.image.load('blocks/BLOCK M.png'),
    }
blck_array=[blocks[1],blocks[2],blocks[3]]
blck_pos=[3,47,190,250,357]

block_list=[]

SPAWNPIPE=pygame.USEREVENT
pygame.time.set_timer(SPAWNPIPE,1200)

bal_x=0
loop = True

while loop:
    rand_block = random.choice(blck_array)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
        if event.type==SPAWNPIPE:
            block_list.append(create_block())
            print(block_list)

    screen.fill((255,255,255))
    block_list=move_block(block_list)
    draw_block(block_list)
    pygame.display.update()
    clock.tick(120)```

【问题讨论】：

标签： python pygame pygame-surface

【解决方案1】：

问题是您在每一帧中选择了一个新的随机块。创建新块时只需选择一个新块：

def create_block():
    global rand_block

    rand_block = random.choice(blck_array) # <-- INSERT

    rand_block_rect = rand_block.get_rect(topleft = (random.choice(blck_pos),-20))
    return rand_block_rect

while loop:
  
    # rand_block = random.choice(blck_array) <-- DELETE

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
        if event.type==SPAWNPIPE:
            block_list.append(create_block())
            print(block_list)

    screen.fill((255,255,255))
    block_list=move_block(block_list)
    draw_block(block_list)
    pygame.display.update()
    clock.tick(120)

【讨论】：