TypeError:参数1必须是pygame.Surface，而不是list-它不是list

Question

我一直在遵循的python flappy鸟AI教程从techwith timm，我得到了这个错误；

Traceback (most recent call last):
  File "c:\Users\kahra\Desktop\projects\flappy bird ai\flappy_bird_ai.py", line 109, in <module>
    main()
  File "c:\Users\kahra\Desktop\projects\flappy bird ai\flappy_bird_ai.py", line 103, in main
    draw_window(win, bird)
  File "c:\Users\kahra\Desktop\projects\flappy bird ai\flappy_bird_ai.py", line 90, in draw_window
    bird.draw(win)
  File "c:\Users\kahra\Desktop\projects\flappy bird ai\flappy_bird_ai.py", line 78, in draw
    rotated_image = pygame.transform.rotate(self.img, self.tilt)
TypeError: argument 1 must be pygame.Surface, not list

我的代码是这样的

import pygame
import neat
import time
import os
import random

WIN_WIDTH = 600
WIN_HEIGHT = 800
BIRD_IMGS = [pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird1.png")))], [pygame.transform.scale2x(
    pygame.image.load(os.path.join("imgs", "bird2.png")))], [pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird3.png")))]
PIPE_IMG = pygame.transform.scale2x(
    pygame.image.load(os.path.join("imgs", "pipe.png")))
BASE_IMG = pygame.transform.scale2x(
    pygame.image.load(os.path.join("imgs", "base.png")))
BG_IMG = pygame.transform.scale2x(
    pygame.image.load(os.path.join("imgs", "bg.png")))


class Bird:
    IMGS = BIRD_IMGS
    MAX_ROTATION = 25
    ROT_VEL = 20
    ANIMATION_TIME = 5

    def __init__(self, x, y):
        self.x = x
        self.y = y
        self.tilt = 0
        self.tick_count = 0
        self.vel = 0
        self.height = self.y
        self.img_count = 0
        self.img = self.IMGS[0]

    def jump(self):
        self.vel = -10.5
        self.tick_count = 0
        self.height = self.y

    def move(self):
        self.tick_count += 1

        d = self.vel*self.tick_count + 1.5*self.tick_count**2
        if d >= 16:
            d = 16

        if d < 0:
            d -= 2

        self.y = self.y + d

        if d < 0 or self.y > self.height + 50:
            if self.tilt < self.MAX_ROTATION:
                self.tilt = self.MAX_ROTATION
        else:
            if self.tilt > -90:
                self.tilt -= self.ROT_VEL

    def draw(self, win):
        self.img_count += 1

        if self.img_count < self.ANIMATION_TIME:
            self.img = self.IMGS[0]
        elif self.img_count < self.ANIMATION_TIME*2:
            self.img = self.IMGS[1]
        elif self.img_count < self.ANIMATION_TIME*3:
            self.img = self.IMGS[2]
        elif self.img_count < self.ANIMATION_TIME*4:
            self.img = self.IMGS[1]
        elif self.img_count == self.ANIMATION_TIME*4+1:
            self.img = self.IMGS[0]
            self.img_count = 0

        if self.tilt <= -80:
            self.img = self.IMGS[1]
            self.img_count = self.ANIMATION_TIME*2

        rotated_image = pygame.transform.rotate(self.img, self.tilt)
        new_rect = rotated_image.get_rect(
            center=self.img.get_rect(topleft=(self.x, self.y)).center)
        win.blit(rotated_image, new_rect.topleft)

    def get_mask(self):
        return pygame.mask.from_surface(self.img)


def draw_window(win, bird):
    win.blit(BG_IMG, (0, 0))
    bird.draw(win)
    pygame.display.update()


def main():
    bird = Bird(200, 200)
    win = pygame.display.set_mode((WIN_WIDTH, WIN_HEIGHT))

    run = True
    while run:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                run = False
        draw_window(win, bird)

    pygame.quit()
    quit()


main()

我读过其他文章也有同样的问题，我理解，但是BG\u IMG不是像BIRD\u IMGS那样的列表。我不知道该怎么办。

我试着做BG\u IMGS[0]来获取“列表”的第一个图像，但它说对象不是列表。为什么？

Answer 1

[i1]、[i2]、[i3]与[i1、i2、i3]

下面不是一个列表，而是一个包含3个组件的元组，其中每个组件是一个包含1个元素的列表：

BIRD_IMGS = [pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird1.png")))], 
            [pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird2.png")))],
            [pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird3.png")))]

更改它：

BIRD_IMGS = [pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird1.png"))), 
             pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird2.png"))),
             pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird3.png")))]