多个图像在绘制时会引起闪烁

如何解决多个图像在绘制时会引起闪烁

因此，在下面是我的代码，每当我尝试运行它并生成气球时，我总会出现小故障，当我们沿线前进时，小故障会增加。请查看是否有什么我可以解决的方法。我真正想知道的唯一部分是使它变得平滑的热度。我也是初学者，所以有很多我不理解的事情。如果您对我有任何改善，请随时告诉我。

Balloon Pic('Logo.png')

import pygame
import sys
import os
import random
import time

pygame.init()
WIDTH,HEIGHT = 800,600
win = pygame.display.set_mode((WIDTH,HEIGHT))
pygame.display.set_caption("My Game")
clock = pygame.time.Clock()
bg_music = []
for r,d,f in os.walk("Music"):
    bg_music.append(f)
i = 0
balloon_sprite = pygame.image.load("logo.png")
round_num = 1
bloons = []

def music_play():
    global i
    if not(pygame.mixer.music.get_busy()):
        pygame.mixer.music.load('Music/'+bg_music[0][i])
        pygame.mixer.music.play()
        i = random.randint(0,len(bg_music)-1)

class Button:
    def __init__(self,x_center,y_center,text,size,text_col,bg_col):
        self.x = x_center
        self.y = y_center
        self.size = size
        self.text_col = text_col
        self.bg_col = bg_col
        self.hit = False
        font = pygame.font.Font('freesansbold.ttf',self.size)
        self.text = font.render(text,True,self.text_col,self.bg_col)
        self.textRect = self.text.get_rect()
        self.textRect.center = (self.x,self.y)
        win.blit(self.text,self.textRect)

    def Check_Collision(self,event):
        if event.type == pygame.MOUSEBUTTONDOWN:
            pos_mouse = event.pos
            if self.textRect.collidepoint(pos_mouse):
                self.hit = True
                
    def Start(self):
        global run1
        if (self.hit):
            run1 = False

    def Quit(self):
        if (self.hit):
            sys.exit()

class Balloon:
    def __init__(self,x,y,health,dests):
        self.health = health
        self.dests = dests
        self.x = x
        self.y = y
        self.count = 0
    def draw_Balloon(self):
        global balloon_sprite
        win.blit(balloon_sprite,pygame.Rect((self.x,self.y),(balloon_sprite.get_width(),balloon_sprite.get_height())))
        pygame.display.update()
        if not(self.count==len(self.dests)):
            if self.x == self.dests[self.count][0]:
                if self.y== self.dests[self.count][1]:
                    self.count+=1
                else:
                    if self.y< self.dests[self.count][1]:
                        self.y+=1
                    else:
                        self.y-=1
            else:
                if self.x< self.dests[self.count][0]:
                    self.x+=1
                else:
                    self.x-=1

def Main():
    def Check_Close(event):
        if event.type == pygame.QUIT:
            sys.exit()

    global run1
    running = True
    run1 = run2 = True
    while running:
        while run1:
            start_bt = Button(WIDTH//2,HEIGHT//2,"Start",32,(255,255,0),(0,0))
            quit_bt = Button(WIDTH-25,HEIGHT-25,"QUIT",16,0))
            
            clock.tick(60)

            for event in pygame.event.get():
                Check_Close(event)
                start_bt.Check_Collision(event)
                start_bt.Start()
                quit_bt.Check_Collision(event)
                quit_bt.Quit()
            pygame.display.update()
            music_play()

        win.fill((255,255))
        for i in range(10):
                bloons.append('balloon'+str(i))
                bloons[i] = Balloon(0,(-30*i),5,([0,50],[528,500],[150,300],[700,-100]))
        while run2:
            win.fill((0,0))
            clock.tick(60)
            for i in range(10):
                bloons[i].draw_Balloon()
            for event in pygame.event.get():
                Check_Close(event)
            music_play()
            pygame.display.update()

Main()

解决方法

仅在应用程序循环结束时执行显示更新，而不在框架中执行多次更新。多次更新显示会导致闪烁。在帧末尾一个pygame.display.update()或pygame.display.flip()就足够了。

只需从 pygame.display.update()中删除Balloon.draw_Balloon：

class Balloon:
    # [...]

    def draw_Balloon(self):
        global balloon_sprite
        win.blit(balloon_sprite,pygame.Rect((self.x,self.y),(balloon_sprite.get_width(),balloon_sprite.get_height())))
        # pygame.display.update() <--- DELETE