如题
import pygame
import sys
from pygame.sprite import Sprite
class Alien(Sprite):
def __init__(self, ai_game):
super().__init__()
self.screen = ai_game.screen
self.screen_rect = self.screen.get_rect()
self.settings = Settings()
self.image = pygame.image.load("D:\python\ship.bmp")
self.rect = self.image.get_rect()
self.rect.x = self.rect.width
self.rect.y = self.rect.height
def update(self):
self.rect.x += self.settings.alien_speed * self.settings.fleet_direction
def check_edges(self):
if self.rect.right >= self.screen_rect.right or self.rect.left <= 0:
return True
class Bullet(Sprite):
def __init__(self, ai_game):
super().__init__()
self.screen = ai_game.screen
self.settings = Settings()
self.ship = Ship(ai_game)
self.bullet_rect = pygame.Rect(0, 0, self.settings.bullet_width, self.settings.bullet_height)
def show(self):
pygame.draw.rect(self.screen, self.settings.bullet_color, self.bullet_rect)
def move(self):
self.bullet_rect.centery -= self.settings.bullet_speed
class Settings:
"""存储游戏设置的类"""
def __init__(self):
self.screen_width = 800
self.screen_height = 800
self.bg_color = (230, 230, 230)
self.ship_speed = 1
self.bullet_width = 10
self.bullet_height = 10
self.bullet_color = (60, 60, 60)
self.bullet_speed = 0.1
self.alien_speed = 1
self.fleet_drop_speed = 1
self.fleet_direction = 1
class Ship:
"""控制飞船的类"""
def __init__(self, ai_game):
self.screen = ai_game.screen
self.screen_rect = ai_game.screen.get_rect()
self.settings = Settings()
self.ship_image = pygame.image.load("D:\python\ship.bmp")
self.ship_rect = self.ship_image.get_rect()
self.ship_rect.midbottom = self.screen_rect.midbottom
self.moving_right = False
self.moving_left = False
def show(self):
self.screen.blit(self.ship_image, self.ship_rect)
def move(self):
if self.moving_right and self.ship_rect.right < self.screen_rect.right:
self.ship_rect.centerx += self.settings.ship_speed
if self.moving_left and self.ship_rect.left > self.screen_rect.left:
self.ship_rect.centerx -= self.settings.ship_speed
class AlienInvasion:
"""操控游戏的主类"""
def __init__(self):
pygame.init()
self.settings = Settings()
self.bullets = pygame.sprite.Group()
self.screen = pygame.display.set_mode((self.settings.screen_width, self.settings.screen_height))
self.ship = Ship(self)
self.aliens = pygame.sprite.Group()
self.create_fleets()
pygame.display.set_caption("飞机大站")
def check_fleet_edges(self):
for alien in self.aliens.sprites():
if alien.check_edges:
self.fleet_drop()
self.settings.fleet_direction *= -1
break
def fleet_drop(self):
for a in self.aliens.sprites():
a.rect.y += self.settings.fleet_drop_speed
def update_aliens(self):
self.aliens.update()
self.check_fleet_edges()
def create_fleets(self):
b = Ship(self)
a = Alien(self)
available_space_x = self.settings.screen_width - a.rect.width * 2
available_space_y = self.settings.screen_height - b.ship_rect.height - 3 * a.rect.height
number_rows = available_space_y // (a.rect.height * 2)
number_aliens = available_space_x // (a.rect.width)
for row in range(number_rows):
for i in range(number_aliens):
alien = Alien(self)
alien.rect.x = alien.rect.width + i * alien.rect.width
alien.rect.y = alien.rect.height + row * alien.rect.height
self.aliens.add(alien)
def check_events(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE:
self.fire_bullets()
if event.key == pygame.K_RIGHT:
self.ship.moving_right = True
if event.key == pygame.K_LEFT:
self.ship.moving_left = True
if event.type == pygame.KEYUP:
if event.key == pygame.K_SPACE:
self.fire_bullets()
if event.key == pygame.K_RIGHT:
self.ship.moving_right = False
if event.key == pygame.K_LEFT:
self.ship.moving_left = False
def fire_bullets(self):
a_bullet = Bullet(self)
a_bullet.bullet_rect.midtop = self.ship.ship_rect.midtop
self.bullets.add(a_bullet)
def update_events(self):
self.screen.fill(self.settings.bg_color)
self.ship.show()
self.aliens.draw(self.screen)
for bullet in self.bullets.sprites():
bullet.show()
bullet.move()
pygame.display.flip()
def run_game(self):
while True:
self.check_events()
self.ship.move()
for bullet in self.bullets.copy():
if bullet.bullet_rect.top < 0:
self.bullets.remove(bullet)
self.update_aliens()
self.update_events()
ai = AlienInvasion()
ai.run_game()
因为你的Class ship里的move函数都是不到达边界的判断条件吧，比如 if self.moving_right and self.ship_rect.right < self.screen_rect.right
所以应该船永远都不会到达屏幕边界吧