def run_game():
# 初始化游戏并创建一个屏幕对象
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode(
(ai_settings.screen_width, ai_settings.screen_height))
# screen = pygame.display.set_mode((1200, 800))
pygame.display.set_caption("Alian Invasion")
# 创建Play按钮
play_button = Button(ai_settings, screen, "Play")
# 设置背景颜色
bg_color = (85, 204, 220)
# 创建一艘飞船
ship = Ship(ai_settings, screen)
# 创建一个用于存储子弹的编组
bullets = Group()
# 创建一艘飞船、一个子弹编组和一个外星人编组
aliens = Group()
# 创建一个外星人
alien = Alien(ai_settings, screen)
# 开始游戏的主循环
while True:
gf.check_events(ai_settings, screen, play_button, ship, bullets)
ship.update()
# bullets.update()
# 删除已消失的子弹
# for bullet in bullets.copy():
# if bullet.rect.bottom <= 0:
# bullet.remove(bullet)
print(len(bullets))
gf.update_bullets(bullets)
gf.update_screen(ai_settings, screen, ship, alien, bullets,
play_button)
gf.update_screen(ai_settings, screen, ship, aliens, bullets)
# 创建外星人群
gf.create_fleet(ai_settings, screen, ship, aliens)
# 监视键盘和鼠标事件
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exeit()
# 每次循环时都重绘屏幕
screen.fill(ai_settings.bg_color)
# screen.fill(bg_color)
ship.blitme()
# 让最终绘制的屏幕可见
pygame.display.flip()
class AlienInvasion:
"""Класс для управления ресурсами и поведением игры."""
def __init__(self):
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.stats = GameStats(self)
self.sb = Scoreboard(self)
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.aliens = pygame.sprite.Group()
self._create_fleet()
self.play_button = Button(self, 'Play')
def run_game(self):
while True:
self._check_events()
if self.stats.game_active:
self.ship.update()
self._update_bullets()
self._update_aliens()
self._update_screen()
def _check_events(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
self._exit()
elif event.type == pygame.KEYDOWN:
self._check_keydown_events(event)
elif event.type == pygame.KEYUP:
self._check_keyup_events(event)
elif event.type == pygame.MOUSEBUTTONDOWN:
mouse_pos = pygame.mouse.get_pos()
self._check_play_button(mouse_pos)
def _check_play_button(self, mouse_pos):
button_clicked = self.play_button.rect.collidepoint(mouse_pos)
if button_clicked and not self.stats.game_active:
self._start_game()
def _start_game(self):
self.settings.initialize_dynamic_settings()
self.stats.reset_stats()
self.stats.game_active = True
self.sb.prep_images()
self.aliens.empty()
self.bullets.empty()
self._create_fleet()
self.ship.center_ship()
pygame.mouse.set_visible(False)
def _check_keydown_events(self, event):
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 in {pygame.K_q, pygame.K_ESCAPE}:
self._exit()
elif event.key == pygame.K_SPACE:
self._fire_bullet()
elif event.key == pygame.K_RETURN: # Enter key
self._start_game()
def _check_keyup_events(self, event):
if event.key == pygame.K_RIGHT:
self.ship.moving_right = False
elif event.key == pygame.K_LEFT:
self.ship.moving_left = False
def _fire_bullet(self):
if len(self.bullets) < self.settings.bullets_allowed:
new_bullet = Bullet(self)
self.bullets.add(new_bullet)
def _update_bullets(self):
self.bullets.update()
for bullet in self.bullets.copy():
if bullet.rect.bottom <= 0:
self.bullets.remove(bullet)
self._check_bullet_alien_collision()
def _check_bullet_alien_collision(self):
collisions = pygame.sprite.groupcollide(self.bullets, self.aliens,
True, True)
if collisions:
for aliens in collisions.values():
self.stats.score += self.settings.alien_points * len(aliens)
self.sb.prep_score()
self.sb.check_high_score()
if not self.aliens:
self._start_new_level()
def _start_new_level(self):
self.bullets.empty()
self._create_fleet()
self.settings.increase_speed()
self.stats.level += 1
self.sb.prep_level()
def _update_aliens(self):
self._check_fleet_edges()
self.aliens.update()
if pygame.sprite.spritecollideany(self.ship, self.aliens):
self._ship_hit()
self._check_aliens_bottom()
def _check_aliens_bottom(self):
screen_rect = self.screen.get_rect()
for alien in self.aliens.sprites():
if alien.rect.bottom >= screen_rect.bottom:
self._ship_hit()
break
def _ship_hit(self):
if self.stats.ships_left > 0:
self.stats.ships_left -= 1 # 4 attempts. if before the condition, then 3 attempts
self.sb.prep_ships()
self.aliens.empty()
self.bullets.empty()
self._create_fleet()
self.ship.center_ship()
sleep(0.5)
else:
self.stats.game_active = False
pygame.mouse.set_visible(True)
def _create_fleet(self):
alien = Alien(self)
alien_width, alien_height = alien.rect.size
available_space_x = self.settings.screen_width - (alien_width * 2)
number_aliens_x = available_space_x // (2 * alien_width)
ship_height = self.ship.rect.height
available_space_y = self.settings.screen_height - 3 * alien_height - ship_height
number_rows = available_space_y // (2 * alien_height)
for row_number in range(number_rows):
for alien_number in range(number_aliens_x):
self._create_alien(alien_number, row_number)
def _create_alien(self, alien_number, row_number):
alien = Alien(self)
alien_width, alien_height = alien.rect.size
alien.x = alien_width + 2 * alien_width * alien_number
alien.rect.x = alien.x
alien.rect.y = alien_height + 2 * alien_height * row_number
self.aliens.add(alien)
def _check_fleet_edges(self):
for alien in self.aliens.sprites():
if alien.check_edges():
self._change_fleet_direction()
break
def _change_fleet_direction(self):
for alien in self.aliens.sprites():
alien.rect.y += self.settings.fleet_drop_speed
self.settings.fleet_direction *= -1
def _update_screen(self):
self.screen.fill(self.settings.bg_color)
self.ship.blitme()
for bullet in self.bullets.sprites():
bullet.draw_bullet()
self.aliens.draw(self.screen)
self.sb.show_score()
if not self.stats.game_active:
self.play_button.draw_button()
pygame.display.flip()
def _exit(self):
with open('record.txt', 'w') as record:
record.write(str(self.stats.high_score))
sys.exit()
