从左到右产卵

如何解决从左到右产卵

鱼应该从左到右产卵。 而且产卵似乎有些奇怪。 即使我设置了最小和最大产卵时间，一些鱼也会在 20 秒后出现。 另外，我对 add_fish() 函数有疑问，我不确定这是生成鱼的正确方法：6 种鱼，所有鱼都有相同的生成机会。 我做错了什么？

class SpawnTime():
    def __init__(self,previous,time):
        self.time_previous = previous
        self.time = time


class Fish():
    count = 0

    def __init__(self,txr,value,speed):
        self.txr = txr
        self.value = value
        self.speed = speed
        self.x = SCREEN_WIDTH
        self.y = random.randint(0,SCREEN_HEIGHT - self.txr.get_height())
        self.rect = pygame.Rect(
            self.x,self.y,self.txr.get_width(),self.txr.get_height())
        self.is_active = True
        Fish.count += 1

    def draw(self):
        SCREEN.blit(self.txr,self.rect)

    def update(self):
        self.rect.x += self.speed

        if self.rect.right <= 0:
            self.is_active = False


class Player():
    def __init__(self):
        self.txr = PLAYER_TXR
        self.x = 0
        self.y = 0
        self.width = self.txr.get_width()
        self.height = self.txr.get_height()
        self.rect = pygame.Rect(self.x,self.width,self.height)
        self.score = 0
        self.reset()

    def draw(self):
        SCREEN.blit(self.txr,self.rect)

    def update(self):
        self.x,self.y = pygame.mouse.get_pos()
        self.rect.x = self.x
        self.rect.y = self.y

    def reset(self):
        self.x = self.width
        self.y = SCREEN_HEIGHT//2
        self.rect = pygame.Rect(self.x,self.height)
        self.score = 0

    def clicked(self):
        for f in fish_list:
            if f.rect.collidepoint(self.x,self.y):
                self.score += f.value
                f.is_active = False
                SOUND_SLIP.play()
                break  # exit the for loop



def update():
    if playing:
        clock.tick(FPS)

    if playing and not game_over:

        game_time = pygame.time.get_ticks()

        if Fish.count < MAX_FISHES:
            if game_time - fish_spawn.time_previous >= fish_spawn.time:
                fish_spawn.time_previous = game_time
                fish_spawn.time = random.randint(
                    MIN_FISH_SPAWN_TIME,MAX_FISH_SPAWN_TIME) 

                add_fish()

        player.update()

        for fish in fish_list:
            fish.update()

        for fish in fish_list:
            if not fish.is_active:
                fish_list.remove(fish)


def draw():
    SCREEN.blit(TITLE_SCREEN,(0,0))

    if not playing and game_over:

        if new_high_score:
            draw_text_centred_x(
                f'New High Score: {high_score}',FONT_20,250,TEAL)
        else:
            draw_text_centred_x(
                f'High Score: {high_score}',50,TEAL)
            draw_text_centred_x(
                f'SCORE: {player.score}',FONT_30,170,TEAL)
            draw_text_centred_x('Press SPACE to Play',350,DARK_GREEN)

    if not playing and not game_over:

        draw_text_centred_x('Press SPACE to Play',FONT_40,DARK_GREEN)

    if playing and not game_over:

        draw_text(f'Score: {player.score}    High Score: {high_score}',5,DARK_GREEN)


        for fish in fish_list:
            fish.draw()

        player.draw()

def draw_text_centred_x(text,font,y,colour):
    img = font.render(text,True,colour)
    x = SCREEN_WIDTH//2 - img.get_width()//2
    SCREEN.blit(img,(x,y))


def draw_text(text,x,colour)
    SCREEN.blit(img,y))


def reset_game():

    fish_list.clear()

    player.reset()


def add_fish():

    if random.randint(1,6) == 1:
        rand = random.randint(0,len(FISHES_TXR)-1)
        txr = FISHES_TXR[rand]
        value = rand+1
        speed = rand*5

        if txr == FISHES_TXR[5]:
            value = -3
      
        f = Fish(txr,speed)
        fish_list.append(f)



if __name__ == "__main__":

    playing = False
    game_over = False

    high_score = 0
    new_high_score = False

    player = Player()
    fish = Fish

    fish_list = []

    fish_spawn = SpawnTime(0,MAX_FISH_SPAWN_TIME) 

    # main game loop
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:  
                quit()
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_ESCAPE:  
                    quit()
                if event.key == pygame.K_SPACE and not game_over:
                    fish_spawn.time = MAX_FISH_SPAWN_TIME
                    playing = True
                    

                if event.key == pygame.K_SPACE and not playing:
                    # new game
                    playing = True
                    game_over = False
                    new_high_score = False
                    player.score = 0

                    fish_spawn.time = 700
                    Fish.count = 0

                    pygame.time.delay(500)  # pause for 500ms = 0.5s

            elif event.type == pygame.MOUSEBUTTONDOWN:
                player.clicked()

        if playing:
            update()
            if Fish.count >= MAX_FISHES and len(fish_list) == 0:
                game_over = True
                playing = False
                if player.score > high_score:
                    new_high_score = True
                    high_score = player.score

                draw()

                pygame.time.delay(500)  # pause for 500ms = 0.5s

        draw()

        pygame.display.update()
        clock.tick(FPS)
    
    pygame.quit()