基于python开发的外星人入侵小游戏源码+详细注释+项目说明.zip

import sys import time from settings import Settings import pygame from ship import Ship from bullet import Bullet from alien import Alien from random import randint from button import Button from game_status import GameStatus from time import sleep from scoreboard import Scoreboard import pygame.font from text_board import TextBoard import jsonUtils from time_board import TimeBoard from setting_button import SettingButton from setting_screen import SetScreen class AlienInvasion: """管理游戏资源和行为""" 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((self.settings.screen_width, self.settings.screen_height)) pygame.display.set_caption("Alien Invasion") self.ship = Ship(self) self.bullets = pygame.sprite.Group() self.aliens = pygame.sprite.Group() self.status = GameStatus(self) self.sb = Scoreboard(self) self.alien_time = 0 self.set_but = SettingButton(self) # self._creat_fleet() # 历史最高分 self.json_data = self._get_json_data() # 左上角的最大分数 self.best_score = TextBoard(self, 20, 20) self.best_score.prep_score('最高分：' + str(self.json_data['best']['score'])) # 是否全屏 self.full_screen = False # 时钟对象 self.clock = pygame.time.Clock() # 创建play按钮 self.play_button = Button(self, "Play") # 左上角显示游戏进行多少秒 self.game_time = TimeBoard(self) def run_game(self): """开始游戏的主循环""" while True: self.clock.tick(self.settings.max_fps) self._check_events() if self.status.game_active: self.ship.update() self._update_aliens() self._update_bullets() self._update_screen() def _check_events(self): """响应案件和鼠标事件""" # 监视键盘和鼠标事件 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) elif event.type == pygame.MOUSEBUTTONDOWN: mouse_pos = pygame.mouse.get_pos() self._check_play_button(mouse_pos) self._check_settings_button(mouse_pos) def _check_settings_button(self, mouse_pos): """在玩家点击设置之后打开设置界面""" button_clicked = self.set_but.rect.collidepoint(mouse_pos) if button_clicked: pass ## 砍了 # self.set_screen = SetScreen(self) def _check_play_button(self, mouse_pos): """在玩家点击Play之后开始游戏""" button_clicked = self.play_button.rect.collidepoint(mouse_pos) if button_clicked and not self.status.game_active: self.status.reset_status() self.status.game_active = True self.sb.prep_score() self.game_time.reset() self.aliens.empty() self.bullets.empty() # 隐藏鼠标 pygame.mouse.set_visible(False) def _check_keydown_events(self, event): """响应按键""" if event.key == pygame.K_RIGHT: # 向右移动飞船 self.ship.moving_right = True elif event.key == pygame.K_LEFT: # 向右移动飞船 self.ship.moving_left = True elif event.key == pygame.K_UP: # 向上移动飞船 self.ship.moving_up = True elif event.key == pygame.K_DOWN: # 向下移动飞船 self.ship.moving_down = True elif event.key == pygame.K_ESCAPE: self._exit_before() sys.exit() elif event.key == pygame.K_BACKQUOTE: # 按~切换是否全屏 self.full_screen ^= True if self.full_screen: 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 else: self.settings.screen_width = self.settings.screen_width_default self.settings.screen_height = self.settings.screen_height_default self.screen = pygame.display.set_mode((self.settings.screen_width, self.settings.screen_height)) self._update_settings() elif event.key == pygame.K_SPACE: self._fire_bullet() 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 elif event.key == pygame.K_DOWN: self.ship.moving_down = False elif event.key == pygame.K_UP: self.ship.moving_up = False def _fire_bullet(self): """创建一颗子弹，并加入到编组bullets中""" if len(self.bullets) < self.settings.bullet_allowed: new_bullet = Bullet(self) self.bullets.add(new_bullet) def _update_screen(self): """更新屏幕上的图像，并切换到新屏幕""" # 每次循环时都重绘屏幕 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() self.game_time.show() self.best_score.show_score() self.set_but.draw_button() # if not self.status.game_active: self.play_button.draw_button() # 让最近绘制的屏幕可见 pygame.display.flip() def _get_json_data(self): return jsonUtils.read_json('data.json') def _update_settings(self): """更新屏幕大小""" self.ship.screen = self.screen self.ship.screen_rect = self.screen.get_rect() self.ship.settings = self.settings # 可以优化使得比例不变 self.ship.rect.bottom = self.screen.get_rect().bottom def _update_bullets(self): """更新子弹位置并删除消失的子弹""" collisions = pygame.sprite.groupcollide(self.bullets, self.aliens, True, True) if collisions: for aliens in collisions.values(): self.status.score += self.settings.alien_points * len(aliens) self.sb.prep_score() self.bullets.update() # 删除超过屏幕的子弹 for bullet in self.bullets.copy(): if bullet.rect.bottom <= 0: self.bullets.remove(bullet) def _update_aliens(self): """更新外星人位置信息和生成外星人""" self.aliens.update() if pygame.sprite.spritecollideany(self.ship, self.aliens): self._alien_hit() # 一定时间后随机生成一个外星人 self.alien_time += 1 if self.alien_time >= self.settings.alien_speed_add: self.alien_time %= self.settings.alien_speed_add self._creat_alien() # 判定击中情况 for alien in self.aliens.copy(): if alien.rect.bottom >= self.settings.screen_height: if self.settings.ships_left > 1: self._alien_hit() else: self.status.game_active = False # 一局游戏结束，计算成绩 self._exit_before() pygame.mouse.set_visible(True) self.aliens.remove(alien) elif alien.rec