外星人大战 飞船不能动了是什么原因?
#alien_invasion
import sys
import pygame
from settings import Settings
from ship import Ship
class AlienInvasion:
#管理游戏资源和行为的类
def __init__(self):
#初始化游戏并创建游戏资源
pygame.init()
self.settings = Settings()
self.screen = pygame.display.set_mode((0, 0),pygame.FULLSCREEN)
self.settings.screen_width = self.screen.get_rect().width
self.settings.screen_height = self.screen.get_rect().height
pygame.display.set_caption("Alien Invasion")
self.ship = Ship(self)
#设置背景色
self.bg_color = (230,230.230)
def run_game(self):
#开始游戏的主循环
while True:
self._check_events()
self.ship.update()
self._update_screen()
def _check_events(self):
#响应按键和鼠标事件
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
self._check_keydown_events(event)
elif event.type == pygame.KEYUP:
self._check_keyup_events(event)
def _check_keydown_events(self, event):
#响应按下
if event.key == pygame.K_RIGHT:
self.ship.moving_right = True
elif event.key == pygame.K_LEFT:
self.ship.moving_left = True
elif event.key == pygame.K_q:
sys.exit()
def _check_keyup_events(self, event):
#响应松开
if event.key == pygame.K_RIGHT:
self.ship.moving_right = False
elif event.key == pygame.K_LEFT:
self.ship.moving_left = False
def _update_screen(self):
#更新屏幕图像,换上新屏幕
self.screen.fill(self.settings.bg_color)
self.ship.blitme()
#让最近绘制的屏幕可见
pygame.display.flip()
if name == ‘main‘:
#创建游戏实例并运行游戏
ai = AlienInvasion()
ai.run_game()
#ship
import pygame
class Ship:
“””管理飞船的类”””
def init(self, ai_game):
#初始化飞船并设置其初始位置
self.screen = ai_game.screen
self.settings = ai_game.settings
self.screen_rect = ai_game.screen.get_rect()
#加载飞船图像并获取其外接矩形
self.image = pygame.image.load("images/ship.bmp")
self.rect = self.image.get_rect()
#对于每艘新飞船,都将其放在屏幕底部中央
self.rect.midbottom = self.screen_rect.midbottom
#在飞船的属性x中存储小数值
self.x = float(self.rect.x)
#移动标志
self.moving_right = False
self.moving_left = False
def update(self):
#根据移动标志调整飞船位置
#更新飞船而不是rect对象的x值
if self.moving_right and self.rect.right < self.screen_rect.right:
self.rect.x += self.settings.ship_speed
if self.moving_left and self.rect.left > 0:
self.rect.x -= self.settings.ship_speed
#根据self.x更新rect对象
self.rect.x = self.x
def blitme(self):
#在指定位置绘制飞船
self.screen.blit(self.image,self.rect)
#settings
class Settings:
“””储存游戏设置”””
def __init__(self):
#初始化游戏设置
#屏幕设置
self.screen_width = 1200
self.screen_height = 800
self.bg_color = (230,230,230)
#飞船设置
self.ship_speed = 1.5
你把飞船的位置又更新回去了, 等于没动