更新 'alien_invasion.py'
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@ -5,6 +5,7 @@ import pygame
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from settings import Settings
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from game_stats import GameStats
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from scoreboard import Scoreboard
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from button import Button
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from ship import Ship
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from bullet import Bullet
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@ -24,7 +25,9 @@ class AlienInvasion:
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pygame.display.set_caption("Alien Invasion")
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# 创建一个用于存储游戏统计信息的实例
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# 并创建记分牌
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self.stats = GameStats(self)
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self.sb = Scoreboard(self)
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self.ship = Ship(self)
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self.bullets = pygame.sprite.Group()
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@ -112,11 +115,21 @@ class AlienInvasion:
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collisions = pygame.sprite.groupcollide(
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self.bullets, self.aliens, True, True)
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if collisions:
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for aliens in collisions.values():
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self.stats.score += self.settings.alien_points * len(aliens)
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self.sb.prep_score()
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self.sb.check_high_score()
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if not self.aliens:
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# 删除现有的子弹并新建一群外星人
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self.bullets.empty()
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self._create_fleet()
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self.settings.increase_speed()
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# 提高等级
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self.stats.level += 1
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self.sb.prep_level()
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def _check_events(self):
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"""响应按键和鼠标事件"""
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@ -135,9 +148,15 @@ class AlienInvasion:
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"""在玩家单机Play按钮时开始新游戏"""
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button_clicked = self.play_button.rect.collidepoint(mouse_pos)
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if button_clicked and not self.stats.game_active:
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# 重置游戏设置
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self.settings.initialize_dynamic_settings()
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# 重置游戏统计信息
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self.stats.reset_stats()
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self.stats.game_active = True
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self.sb.prep_score()
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self.sb.prep_level()
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self.sb.prep_ships()
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# 清空余下的外星人和子弹
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self.aliens.empty()
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@ -182,6 +201,9 @@ class AlienInvasion:
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bullet.draw_bullet()
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self.aliens.draw(self.screen)
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# 显示得分
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self.sb.show_score()
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# 如果游戏处于非活动状态,就绘制Play按钮
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if not self.stats.game_active:
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self.play_button.draw_button()
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@ -204,8 +226,9 @@ class AlienInvasion:
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def _ship_hit(self):
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"""响应飞船被外星人撞到"""
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if self.stats.ships_left > 0:
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# 将ships_left减一
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# 将ships_left减一并更新记分牌
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self.stats.ships_left -= 1
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self.sb.prep_ships()
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# 清空余下的外星人和子弹
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self.aliens.empty()
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