pygame 动画更新问题播放器和子弹正在轻弹最后显示更新不起作用

问题描述

我的 pygame 游戏有问题。当玩家移动时，我制作了一个玩家动画。我还添加了一个项目符号。我的问题是，在我使用我的子弹后，我的播放器和子弹闪烁。当我只在最后更新显示时，您看不到项目符号。多次更新带来播放器和子弹闪烁的问题。请帮助我。谢谢

import random

import pygame

# Intialize the pygame
pygame.init()

# create the screen
screen = pygame.display.set_mode((640,360))

# Background
background = pygame.image.load('SSF2_Final_Valley.png')
walkRight = [pygame.image.load('R1a.png'),pygame.image.load('R2a.png'),pygame.image.load('R3a.png'),pygame.image.load('R4a.png'),pygame.image.load('R5a.png'),pygame.image.load('R6a.png'),pygame.image.load('R7a.png'),pygame.image.load('R8a.png'),pygame.image.load('R9a.png')]
walkLeft = [pygame.image.load('L1a.png'),pygame.image.load('L2a.png'),pygame.image.load('L3a.png'),pygame.image.load('L4a.png'),pygame.image.load('L5a.png'),pygame.image.load('L6a.png'),pygame.image.load('L7a.png'),pygame.image.load('L8a.png'),pygame.image.load('L9a.png')]
char = pygame.image.load('stand.png')


vel = 5
width = 64
screen_width = 640
left = False
right = False
clockobject = pygame.time.Clock()


#player
playerImg = pygame.image.load('stand.png')
playerX = 15
playerY = 290
playerX_change = 0

# Bullet

# Ready - You can't see the bullet on the screen
# Fire - The bullet is currently moving

bulletImg = pygame.image.load('kunai.png')
bulletX = 15
bulletY = 290 - 32
bulletX_change = 3
bulletY_change = 0
bullet_state = "ready"

def redrawGameWindow():
    global player
    def player(x,y):
        global walkCount
        screen.blit(background,(0,0))
        #chracter wird gezecihnet
        if walkCount + 1 >= 20:
            walkCount = 0
        if left:
            screen.blit(walkLeft[walkCount//3],(x,y))
            walkCount += 1
            
        elif right:
            screen.blit(walkRight[walkCount//3],y))
            walkCount += 1
            
        else:
            screen.blit(char,y))
            pygame.display.update()
            
    global fire_bullet   
    def fire_bullet(x,y):
        global bullet_state
        bullet_state = "fire"
        screen.blit(bulletImg,(x + 32,y + 32))
        pygame.display.update()
    
    #pygame.display.update()
    
running = True
while running:
    # RGB = Red,Green,Blue
    screen.fill((0,0))
    # Background Image
    screen.blit(background,0))
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
            pygame.quit()
            exit()
            

        # if keystroke is pressed check whether its right or left
        if event.type == pygame.KEYDOWN:

            if event.key == pygame.K_SPACE:
                if bullet_state is "ready":
                    
                    # Get the current x cordinate of the spaceship
                    bulletX = playerX
                    fire_bullet(bulletX,bulletY)

                
    keys = pygame.key.get_pressed()
                
    if keys[pygame.K_LEFT] and playerX > vel:
        playerX -= vel
        left = True
        right = False
        
    elif keys[pygame.K_RIGHT] and playerX < screen_width- width :
        playerX += vel
        right = True
        left = False
        
    else:
        right = False
        left = False
        walkCount = 0
        
                
    # 5 = 5 + -0.1 -> 5 = 5 - 0.1
    # 5 = 5 + 0.1
        
    # Bullet Movement
    if bulletX <= 0:
        bulletX = 15
        bullet_state = "ready"

    if bullet_state is "fire":
        fire_bullet(bulletX,bulletY)
        bulletX += bulletX_change
        
    if (bulletX > screen_width-width):
        bullet_state = "ready"

    redrawGameWindow()
    player(playerX,playerY)
    pygame.display.update()

解决方法

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