(Python速成班)外星人入侵项目
如果有人能告诉我如何修复此错误,我将不胜感激:(Python速成班)外星人入侵项目,python,python-3.x,pygame,Python,Python 3.x,Pygame,如果有人能告诉我如何修复此错误,我将不胜感激: AttributeError: 'Ship' object has no attribute 'bullet_width' 我正在开始学习Python,我不确定解决这个问题的方法是什么。当我按下空格键时,这种情况总是发生。 以下是本项目中的模块: alien_.py: import sys import pygame from settings import Settings from ship import Sh
AttributeError: 'Ship' object has no attribute 'bullet_width'
我正在开始学习Python,我不确定解决这个问题的方法是什么。当我按下空格键时,这种情况总是发生。
以下是本项目中的模块:
alien_.py:
import sys
import pygame
from settings import Settings
from ship import Ship
import game_functions as gf
from pygame.sprite import Group
def run_game():
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode(
(ai_settings.screen_width, ai_settings.screen_height))
screen = pygame.display.set_mode((1100, 600))
pygame.display.set_caption("Alien Invasion")
bg_color = (230, 230, 230)
ship = Ship(screen, ai_settings)
bullets = Group()
while True:
gf.check_events(ship, screen, ai_settings, bullets)
ship.update()
bullets.update()
gf.update_screen(ai_settings, screen, ship, bullets)
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
screen.fill(ai_settings.bg_color)
ship.blitme()
screen.fill(bg_color)
run_game()
ship.py:
import pygame
class Ship():
def __init__(self, screen, ai_settings):
self.screen = screen
self.ai_settings = ai_settings
self.image = pygame.image.load('images/spaceship.png')
self.rect = self.image.get_rect()
self.screen_rect = screen.get_rect()
self.rect.centerx = self.screen_rect.centerx
self.rect.bottom = self.screen_rect.bottom
self.center = float(self.rect.centerx)
self.moving_right = False
self.moving_left = False
def update(self):
if self.moving_right and self.rect.right < self.screen_rect.right:
self.center += self.ai_settings.ship_speed_factor
if self.moving_left and self.rect.left > 0:
self.center -= self.ai_settings.ship_speed_factor
self.rect.centerx = self.center
def blitme(self):
self.screen.blit(self.image, self.rect)
game_functions.py
import sys
import pygame
from bullet import Bullet
def check_keydown_events(event, ai_settings, screen, ship, bullets):
if event.key == pygame.K_RIGHT:
ship.moving_right = True
elif event.key == pygame.K_LEFT:
ship.moving_left = True
elif event.key == pygame.K_SPACE:
new_bullet = Bullet(ai_settings, screen, ship)
bullets.add(new_bullet)
def check_keyup_events(event, ship):
if event.key == pygame.K_RIGHT:
ship.moving_right = False
elif event.key == pygame.K_LEFT:
ship.moving_left = False
def check_events(ai_settings, screen, ship, bullets):
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
check_keydown_events(event, ai_settings, screen, ship, bullets)
elif event.type == pygame.KEYUP:
check_keyup_events(event, ship)
def update_screen(ai_settings, screen, ship, bullets):
screen.fill(ai_settings.bg_color)
for bullet in bullets.sprites():
bullet.draw_bullet()
ship.blitme()
pygame.display.flip()
settings.py:
class Settings():
def __init__(self):
self.screen_width = 1200
self.screen_height = 800
self.bg_color = (230, 230, 230)
self.ship_speed_factor = 1.5
self.bullet_speed_factor = 1
self.bullet_width = 3
self.bullet_height = 15
self.bullet_color = 60, 60, 60
调用
check\u events
时,参数的顺序错误:
检查事件(发货、屏幕、ai设置、项目符号)
检查事件(ai设置、屏幕、发货、项目符号)
参数的顺序很重要,除了。调用
检查事件时,参数的顺序是错误的:
检查事件(发货、屏幕、ai设置、项目符号)
检查事件(ai设置、屏幕、发货、项目符号)
参数的顺序很重要,除了。看起来由于某种原因,ai_设置
变成了ship
(可能是超级调用),但这并不是真正可以解决的。你需要启动一个调试器,一步一步地进行,直到找到错误发生的时刻。检查事件(发货、屏幕、ai设置、项目符号)
->检查事件(ai设置、屏幕、发货、项目符号)
我刚刚更改了它,我很高兴它可以工作!但是为什么顺序很重要?@JackBrown请学习基本知识。参数的顺序很重要,除了。在所有语言中,参数的顺序都很重要(关键字参数除外)。语言不关心如何命名变量-函数外和函数内可能有不同的名称-它们关心参数的位置这样的问题出于某种原因ai_设置
变成ship
(可能是超级调用),但这并不是真正可以解决的。你需要启动一个调试器,一步一步地进行,直到找到错误发生的时刻。检查事件(发货、屏幕、ai设置、项目符号)
->检查事件(ai设置、屏幕、发货、项目符号)
我刚刚更改了它,我很高兴它可以工作!但是为什么顺序很重要?@JackBrown请学习基本知识。参数的顺序很重要,除了。在所有语言中,参数的顺序都很重要(关键字参数除外)。语言不关心如何命名变量——函数外部和函数内部可能有不同的名称——它们关心参数的位置
class Settings():
def __init__(self):
self.screen_width = 1200
self.screen_height = 800
self.bg_color = (230, 230, 230)
self.ship_speed_factor = 1.5
self.bullet_speed_factor = 1
self.bullet_width = 3
self.bullet_height = 15
self.bullet_color = 60, 60, 60