Cannot see bullets when game is running

Question

Hello, so I can only see the bullet when i'm closing my game's window, but I do not see the mistake. import pygame, math, random, os pygame.init() clock = pygame.time.Clock() width = 800 height = 608 screen = pygame.display.set_mode((width, height)) running = True gameover = False levelferdig = False levelnr = 0 ferdig = False jump = False

levels =[[[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],
         [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
         [1,0,8,0,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
         [1,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,1],
         [1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1],
         [1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1],
         [1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1],
         [1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [1,0,0,0,1,1,1,1,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [1,0,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0],
         [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,7,0,0,0],
         [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0],
         [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0],
         [1,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
         [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],
         [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1]],
        [[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],
         [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
         [0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0],
         [9,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1,0,0,0,0,1],
         [0,2,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,1],
         [0,0,1,1,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,1],
         [0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,1],
         [0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0],
         [0,0,0,0,1,1,1,1,1,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0],
         [0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0],
         [0,1,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0],
         [0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0],
         [0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0],
         [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0],
         [0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
         [0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
         [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,1,1]]]
       
ghostgruppe = pygame.sprite.Group()
tilegruppe = pygame.sprite.Group()
utganggruppe = pygame.sprite.Group()
backgroundgruppe_1 = pygame.sprite.Group()
backgroundgruppe_2 = pygame.sprite.Group()
moving_sprites = pygame.sprite.Group()
spillergruppe = pygame.sprite.Group()


bullet_img = pygame.transform.scale(pygame.image.load(os.path.join('Bullets', 'bullet.png.png')), (10,10))
background_image_2 = pygame.image.load('skog.png').convert()
background_image_1 = pygame.image.load("beach.png").convert()
pygame.display.set_caption('pygame') #setter navnet på spillet når du åpner spillet
icon = pygame.image.load('menneske.png') 
pygame.display.set_icon(icon)

font = pygame.font.Font('freesansbold.ttf', 72 ) #font som skal brukes
gameovertekst = font.render('Game over', True, (255,0,0)) #farge og tekst gameover
gameoverrect = gameovertekst.get_rect()
gameoverrect.center = (width/2, height/2)

font = pygame.font.Font('freesansbold.ttf', 72 ) #font som skal brukes
levelferdigtekst = font.render('Ferdig', True, (0,255,0)) #farge og tekst gameover
levelferdigrect = levelferdigtekst.get_rect()
levelferdigrect.center = (width/2, height/2)

ferdigtekst = font.render('Victory', True, (0,0,255))
ferdigrect = levelferdigtekst.get_rect()
ferdigrect.center = (width/2, height/2)


class Spiller(pygame.sprite.Sprite):
    def __init__(self,x,y):
        super().__init__()
        self.spiller_animation = False
        self.sprites = []
        self.sprites.append(pygame.image.load('spiller.rett(1).png'))
        self.sprites.append(pygame.image.load('spiller.høyre(1).png'))
        self.sprites.append(pygame.image.load('spiller.venstre(1).png'))
        self.sprites.append(pygame.image.load('spiller.hopp(1).png'))
        self.current_sprite = 0
        self.image = self.sprites[self.current_sprite]
        self.rect = self.image.get_rect()
        self.rect.topleft =[x,y]
        self.bullets = [] #list
        self.x = x
        self.y = y
        self.stepIndex = 0
        self.face_right = True
        self.face_left = False
        self.fy = 10
        self.fx = 10
        self.jump = False


    def direction(self):
        if self.face_right:
            return 1
        if self.face_left:
            return -1
        
    def animation(self):
        self.spiller_animation = True

        
    def skytt(self):
        if  trykketliste[pygame.K_RIGHT] and not gameover:
            bullet = Bullet(self.x, self.y, self.direction())
            self.bullets.append(bullet)
        for bullet in self.bullets:
            bullet.move()
            
    def reset(self):
        self.fartx = 0
        self.farty = 0
 
    def update(self,speed):
        if self.spiller_animation == True:
                self.current_sprite += speed
                if int(self.current_sprite) >= len(self.sprites):
                        self.current_sprite = 0
                        self.is_animating = False
            
        self.image = self.sprites[int(self.current_sprite)]
        
      
        self.rect.x += self.fartx
        tiletreffliste = pygame.sprite.spritecollide(self,tilegruppe, False)
        if tiletreffliste:
           if self.fartx > 0:
               self.rect.right = tiletreffliste[0].rect.left
           else: 
               self.rect.left = tiletreffliste[0].rect.right

         
        self.rect.y += self.farty
        tiletreffliste = pygame.sprite.spritecollide(self, tilegruppe, False)
        if tiletreffliste:
           if self.farty > 0:
              self.rect.bottom = tiletreffliste[0].rect.top
           else:
              self.rect.top = tiletreffliste[0].rect.bottom
            
           utgangtreffliste = pygame.sprite.spritecollide(self, utganggruppe, False)
           if utgangtreffliste:
              global levelferdig
              levelferdig = True
              global levelnr
              levelnr += 1
              restart()
              
class Bullet:
    def __init__(self,x,y, direction):
        super().__init__()
        self.x = x + 15
        self.y = y + 25
        self.direction = direction
    
    def draw_bullet(self):
        screen.blit(bullet_img, (self.x, self.y))
        
    def move(self):
        if self.direction == 1:
            self.x += 15
        if self.direction == -1:
            self.x -= 15
            
class Ghost(pygame.sprite.Sprite):
    def __init__(self, x, y, fx,fy):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('ghost.png').convert_alpha()
        self.rect = self.image.get_rect() #self rect rektangler, fin rektangel bilde som passer
        self.rect.x = x
        self.rect.y = y
        self.fartx = fx
        self.farty = fy 

    def flytt(self):
        self.rect.x = self.rect.x + self.fartx
        self.rect.y = self.rect.y + self.farty
        
    def update(self):
        # Flytter høyre/venstre og sjekker kollisjon
        self.rect.x += self.fartx
        tiletreffliste = pygame.sprite.spritecollide(self,tilegruppe, False)
        if tiletreffliste:
           if self.fartx > 0:
               self.rect.right = tiletreffliste[0].rect.left
           else: 
               self.rect.left = tiletreffliste[0].rect.right

           self.fartx *= -1

        self.rect.y += self.farty
        tiletreffliste = pygame.sprite.spritecollide(self, spillergruppe, False)
        if tiletreffliste:
            if self.farty > 0:
                self.rect.bottom = tiletreffliste[0].rect.top
            else:
                self.rect.top = tiletreffliste[0].rect.bottom

            self.farty *= -1
            
              
    def treffTile(self):
        if self.rect.x > width or self.rect.x < 0:
            self.fartx = self.fartx * -1

        if self.rect.y > height or self.rect.y < 0:
            self.farty = self.farty * -1
            
class Tile(pygame.sprite.Sprite):
    def __init__(self,x,y):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('sand.png').convert_alpha()
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        
class Utgang(pygame.sprite.Sprite):
    def __init__(self,x,y):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('dør.png')
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        
def restart():
    global gameover
    global levelferdig

    gameover = False
    levelferdig = False


    for tile in tilegruppe:
        tile.kill()
    for utgang in utganggruppe:
        utgang.kill()
    for ghost in ghostgruppe:
        ghost.kill()
    spiller.reset() 

    for i in range(5): #hvor mange ghosts skal vi ha
        ghost = Ghost(random.randint(0,width),random.randint(0, height), random.randint(1,8),random.randint(1,8)) 
        ghostgruppe.add(ghost)


    if levelnr < len(levels):
       for y,rad in enumerate(levels[levelnr]):
           for x,verdi in enumerate(rad):
               if verdi == 1:
                  tile = Tile(x*32,y*32)
                  tilegruppe.add(tile)
               if verdi == 9:
                  utgang = Utgang(x*32, y*32)
                  utganggruppe.add(utgang)
               if verdi == 8:
                  spiller.rect.x = x*32

                  spiller.rect.y = y*32
    else:     
        global ferdig
        
        ferdig = True

#skytt
spiller = Spiller(100, 100)
moving_sprites.add(spiller)
restart()


while running:
    pygame.display.bullet()
    spiller.farty = 0
    spiller.fartx = 0
    trykketliste = pygame.key.get_pressed()
    spiller.skytt()
    background_image_1 = pygame.image.load("beach.png").convert()
    screen.blit(background_image_1, [0,0])

    if trykketliste[pygame.K_RIGHT] and not gameover:
        spiller.farty = -1
        spiller.sprites.append(pygame.image.load('spiller.venstre(1).png'))
        spiller.animation()
        spiller.skytt() 
    if trykketliste[pygame.K_LEFT] and not gameover:
        spiller.farty = 1
        spiller.sprites.append(pygame.image.load('spiller.høyre(1).png'))
        spiller.animation()
    if trykketliste[pygame.K_UP] and not gameover:
        spiller.fartx = -1
        spiller.animation()
        spiller.sprites.append(pygame.image.load('spiller.hopp(1).png'))
    if trykketliste[pygame.K_DOWN]and not gameover:
        spiller.fartx = 1
        spiller.animation()
        spiller.sprites.append(pygame.image.load('spiller.rett(1).png'))
    if jump is False and trykketliste[pygame.K_SPACE] and not gameover:
       jump = True
       spiller.animation()
       spiller.sprites.append(pygame.image.load('spiller.hopp(1).png'))
    if jump is True: 
       spiller.rect.y -= spiller.farty *4 
       spiller.farty -= 1
    if spiller.farty < -10:
       jump = False
       spiller.farty = 10       
    if levelnr == 1:
       background_image_1 = pygame.image.load("skog.png").convert()
       screen.blit(background_image_2, [0,0])


        
    spillertruffet = pygame.sprite.groupcollide(spillergruppe, ghostgruppe, False, False, pygame.sprite.collide_mask)
    if spillertruffet:
        gameover = True

    ghosttruffet = pygame.sprite.groupcollide(ghostgruppe, spillergruppe, True, True, pygame.sprite.collide_mask)
    if ghosttruffet:
        spiller.kill()

    #Gruppene oppdateres
    ghostgruppe.update()
    tilegruppe.update()
    utganggruppe.update() 
    spillergruppe.update()
    moving_sprites.draw(screen)
    moving_sprites.update(0.25)
    #gruppene vises på skjermen.
    ghostgruppe.draw(screen)
    tilegruppe.draw(screen)
    utganggruppe.draw(screen)
    spillergruppe.draw(screen)
    if gameover: 
        screen.blit(gameovertekst,gameoverrect)
    if levelferdig:
        screen.blit(levelferdigtekst, levelferdigrect)
    spillergruppe.draw(screen)
    clock.tick(60)
    pygame.display.update()
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        if event.type == pygame.K_n:
            levelnr = O
            restart()
        for bullet in spiller.bullets:
            bullet.draw_bullet()
        pygame.time.delay(30)
   
pygame.display.flip()
pygame.quit()

Answer 1

You have to draw the bullets after drawing the background. Use a loop to iterate through the list of bullets and call the draw_bullet method for each bullet:

while running:
    # pygame.display.bullet()         <--- DELETE
    spiller.farty = 0
    spiller.fartx = 0
    trykketliste = pygame.key.get_pressed()
    spiller.skytt()
    background_image_1 = pygame.image.load("beach.png").convert()
    screen.blit(background_image_1, [0,0])

    # INSERT
    for bullet in spiller.bullets: 
        bullet.draw_bullet()        

    # [...]

    pygame.display.update()
    # [...]

screen.blit(background_image_1, [0,0]) draws the background and hides anything previously drawn. pygame.display.update() updates the display and makes everything that is drawn visible. Therefor you need to draw all the objects of the scene after screen.blit(background_image_1, [0,0]) and before pygame.display.update().