410 lines
16 KiB
Python
410 lines
16 KiB
Python
import sys
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import pygame
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import random
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import operator
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import json
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from bullet import Bullet
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from super_bullet import SuperBullet
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from alien import Alien
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from alien_bullet import AlienBullet
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from time import sleep
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from threading import Timer
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"""
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用户操作响应
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"""
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def check_events(ai_settings, screen, ship, bullets, aliens, stats, play_button, scoreboard, alien_bullets, super_bullets, playername_inputbox):
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"""响应按键和鼠标事件"""
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for event in pygame.event.get():
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if event.type == pygame.QUIT:
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sys.exit()
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elif event.type == pygame.KEYDOWN:
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check_keydown_events(event, ai_settings, screen, ship, bullets, stats, scoreboard, super_bullets, playername_inputbox)
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elif event.type == pygame.KEYUP:
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check_keyup_events(event, ship)
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elif event.type == pygame.MOUSEBUTTONDOWN:
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mouse_x, mouse_y = pygame.mouse.get_pos()
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check_playername_input(playername_inputbox, stats, mouse_x, mouse_y)
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check_play_button(ai_settings, screen, ship, bullets, aliens, stats, play_button, mouse_x, mouse_y, scoreboard, alien_bullets, super_bullets, playername_inputbox)
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def check_keydown_events(event, ai_settings, screen, ship, bullets, stats, scoreboard, super_bullets, playername_inputbox):
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"""响应按键按下"""
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if event.key == pygame.K_RIGHT:
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ship.moving_right = True
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elif event.key == pygame.K_LEFT:
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ship.moving_left = True
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elif event.key == pygame.K_SPACE:
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if stats.game_active:
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fire_bullet(ai_settings, screen, ship, bullets)
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elif event.key == pygame.K_UP:
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if stats.game_active:
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activate_super_mode(ai_settings, ship, stats, scoreboard)
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elif event.key == pygame.K_LALT:
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if stats.game_active:
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fire_super_bullet(ai_settings, screen, ship, stats, super_bullets)
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elif event.key == pygame.K_q:
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sys.exit()
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else:
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if playername_inputbox.login == False:
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playername_inputbox.key_down(event)
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def check_keyup_events(event, ship):
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"""响应按键松开"""
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if event.key == pygame.K_RIGHT:
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ship.moving_right = False
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elif event.key == pygame.K_LEFT:
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ship.moving_left = False
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def check_playername_input(playername_inputbox, stats, mouse_x, mouse_y):
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"""检查用户点击玩家名称输入框，若点击，则清空文本"""
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if playername_inputbox.rect.collidepoint(mouse_x, mouse_y) and not stats.game_active:
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playername_inputbox.text = ''
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def check_play_button(ai_settings, screen, ship, bullets, aliens, stats, play_button, mouse_x, mouse_y, scoreboard, alien_bullets, super_bullets, playername_inputbox):
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"""检查开始游戏按钮是否被按下，并响应"""
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if play_button.rect.collidepoint(mouse_x, mouse_y) and not stats.game_active:
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# 隐藏光标
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pygame.mouse.set_visible(False)
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# 重置游戏参数
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ai_settings.initialize_dynamic_settings()
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stats.reset_stats()
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# 重置记分牌
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scoreboard.prep_images()
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# 设置状态为激活
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stats.game_active = True
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# 清屏并创建新的一群外星人
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clear_and_create_fleet(ai_settings, screen, ship, bullets, aliens, alien_bullets, super_bullets)
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if playername_inputbox.login == False:
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stats.player = playername_inputbox.text
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playername_inputbox.login = True
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def fire_super_bullet(ai_settings, screen, ship, stats, super_bullets):
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if stats.power >= ai_settings.points_of_power:
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ai_settings.super_bullet_sound.play()
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new_super_bullet = SuperBullet(ai_settings, screen, ship)
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super_bullets.add(new_super_bullet)
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stats.power -= ai_settings.points_of_power
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def fire_bullet(ai_settings, screen, ship, bullets):
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if len(bullets) < ai_settings.bullets_allowed:
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ai_settings.bullet_sound.play()
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new_bullet = Bullet(ai_settings, screen, ship)
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bullets.add(new_bullet)
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def activate_super_mode(ai_settings, ship, stats, scoreboard):
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"""响应进入无敌模式"""
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if stats.power >= ai_settings.points_of_power:
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if ship.super_mode == False:
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ai_settings.super_mode_sound.play()
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ship.super_mode = True
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stats.power -= ai_settings.points_of_power
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scoreboard.prep_power()
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Timer(5, quit_super_mode, args=[ship]).start()
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def quit_super_mode(ship):
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ship.super_mode = False
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"""
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子弹参数更新（包括超级子弹）
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"""
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def update_bullets(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, super_bullets):
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"""更新子弹位置并检查碰撞"""
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# 更新子弹位置
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bullets.update()
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super_bullets.update()
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# 删除已超出范围的子弹
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for bullet in bullets.copy():
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if bullet.rect.bottom <= 0:
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bullets.remove(bullet)
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for super_bullet in super_bullets.copy():
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if super_bullet.rect.bottom <= 0:
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super_bullets.remove(super_bullet)
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check_bullet_alien_collision(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, super_bullets)
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def check_bullet_alien_collision(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, super_bullets):
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"""响应子弹击中外星人"""
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# 检查是否有子弹击中外星人，若有，删除对应的子弹与外星人
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collisions = pygame.sprite.groupcollide(bullets, aliens, True, True)
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super_collisions = pygame.sprite.groupcollide(super_bullets, aliens, False, True)
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if collisions:
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for aliens in collisions.values():
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stats.score += ai_settings.alien_points * len(aliens)
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stats.power += ai_settings.alien_points * len(aliens)
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scoreboard.prep_score()
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scoreboard.prep_power()
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# 检查是否打破历史记录
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check_high_score(stats, scoreboard)
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if super_collisions:
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for aliens in super_collisions.values():
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stats.score += ai_settings.alien_points * len(aliens)
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stats.power += ai_settings.alien_points * len(aliens)
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scoreboard.prep_score()
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scoreboard.prep_power()
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# 检查是否打破历史记录
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check_high_score(stats, scoreboard)
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if len(aliens) == 0:
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# 外星人被消灭干净，开启新等级
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start_new_level(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, super_bullets)
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def start_new_level(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, super_bullets):
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"""响应外星人被消灭干净"""
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ai_settings.start_new_level_sound.play()
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bullets.empty()
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super_bullets.empty()
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ai_settings.increase_speed()
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create_fleet(ai_settings, screen, ship, aliens)
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stats.level += 1
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scoreboard.prep_level()
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def check_high_score(stats, scoreboard):
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"""响应打破历史记录"""
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if stats.score > stats.high_score:
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stats.high_score = stats.score
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scoreboard.prep_high_score()
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"""
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外星人参数更新
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"""
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def update_aliens(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets):
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"""更新所有外星人的位置"""
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check_fleet_edges(ai_settings, aliens)
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aliens.update()
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# 检测外星人和飞船的碰撞
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if pygame.sprite.spritecollideany(ship, aliens):
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ship_hit(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets)
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check_aliens_bottom(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets)
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def check_fleet_edges(ai_settings, aliens):
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"""有外星人到达屏幕边缘时采取相应措施"""
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for alien in aliens.sprites():
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if alien.check_edges():
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change_fleet_direction(ai_settings, aliens)
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break
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def change_fleet_direction(ai_settings, aliens):
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"""将外星人整体下移一行并改变移动方向"""
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for alien in aliens.sprites():
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alien.rect.y += ai_settings.fleet_drop_speed
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ai_settings.fleet_direction *= -1
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def check_aliens_bottom(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets):
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"""检查是否有外星人撞到屏幕底端"""
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screen_rect = screen.get_rect()
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for alien in aliens.sprites():
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if alien.rect.bottom >= screen_rect.bottom:
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# 像飞船与外星人相撞一样处理
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ship_hit(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets)
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break
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def ship_hit(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets):
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"""响应飞船与外星人碰撞"""
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if stats.ships_left > 0:
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"""仍有剩余飞船，游戏继续"""
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ai_settings.ship_hit_sound.play()
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# 将剩余飞船数减一
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stats.ships_left -= 1
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# 清空外星人和子弹列表并创建一批新外星人
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clear_and_create_fleet(ai_settings, screen, ship, bullets, aliens, alien_bullets, super_bullets)
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# 更新剩余飞船数
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scoreboard.prep_ships()
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else:
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"""游戏结束"""
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if stats.score == stats.high_score:
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ai_settings.recordbroken_sound.play()
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else:
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ai_settings.gameover_sound.play()
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stats.game_active = False
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pygame.mouse.set_visible(True)
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# 记录此次玩家得分
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new_score = { 'player': stats.player, 'score': stats.score }
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stats.scores_data.append(new_score)
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stats.scores_data.sort(key=lambda x:x["score"], reverse=True)
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with open('scores.json', 'w') as f:
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json.dump(stats.scores_data, f)
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# 打印历史得分排行榜Top10
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if len(stats.scores_data) >= 10:
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leaderboard_height = 340
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else:
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leaderboard_height = len(stats.scores_data) * 30 + 40
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leaderboard_rect = pygame.Rect(450, 180, 300, leaderboard_height)
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screen.fill(ai_settings.lb_bg_color, leaderboard_rect)
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# 表头
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leaderboard_font = pygame.font.SysFont("Calibri, Arial", 28)
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rank_image_rect = draw_leaderboard(ai_settings.lb_text_color, ai_settings.lb_bg_color, screen, 'Rank', leaderboard_font, 500, 200)
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player_image_rect = draw_leaderboard(ai_settings.lb_text_color, ai_settings.lb_bg_color, screen, 'Player', leaderboard_font, 600, 200)
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score_image_rect = draw_leaderboard(ai_settings.lb_text_color, ai_settings.lb_bg_color, screen, 'Score', leaderboard_font, 700, 200)
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rank = 0
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for player_score in stats.scores_data:
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"""逐个显示玩家得分"""
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rank += 1
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if rank > 10:
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break
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rank_text = str(rank)
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player_text = str(player_score["player"])
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score_text = str(player_score["score"])
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y_postion = rank_image_rect.centery + 30 * rank
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font = leaderboard_font
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text_color = ai_settings.lb_text_color
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bg_color = ai_settings.lb_bg_color
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if player_score == new_score:
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"""当前用户的信息，样式不同"""
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general_font = pygame.font.SysFont("Calibri, Arial", 32, True)
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text_color = (255, 255, 0)
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draw_leaderboard(text_color, bg_color, screen, rank_text, font, rank_image_rect.centerx, y_postion)
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draw_leaderboard(text_color, bg_color, screen, player_text, font, player_image_rect.centerx, y_postion)
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draw_leaderboard(text_color, bg_color, screen, score_text, font, score_image_rect.centerx, y_postion)
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pygame.display.flip()
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sleep(5)
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sleep(0.5)
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def draw_leaderboard(text_color ,bg_color, screen, text, font, x, y):
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"""绘制排行榜的某一项"""
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image = font.render(text, True, text_color, bg_color)
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image_rect = image.get_rect()
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image_rect.centerx = x
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image_rect.centery = y
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screen.blit(image, image_rect)
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return image_rect
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def clear_and_create_fleet(ai_settings, screen, ship, bullets, aliens, alien_bullets, super_bullets):
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"""清空外星人和子弹列表并创建一批新外星人"""
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# 清空外星人和子弹列表
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bullets.empty()
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super_bullets.empty()
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aliens.empty()
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alien_bullets.empty()
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# 创建一批新的外星人，并将飞船放到屏幕底部中央
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create_fleet(ai_settings, screen, ship, aliens)
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ship.center_ship()
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def create_fleet(ai_settings, screen, ship, aliens):
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"""创建外星人群"""
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alien = Alien(ai_settings, screen)
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number_aliens_x = get_number_aliens_x(ai_settings, alien.rect.width)
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number_rows = get_number_rows(ai_settings, alien.rect.height, ship.rect.height)
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for row_number in range(number_rows):
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for alien_number in range(number_aliens_x):
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create_alien(ai_settings, screen, aliens, alien_number, row_number)
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def get_number_aliens_x(ai_settings, alien_width):
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"""计算一行可容纳多少外星人"""
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available_space_x = ai_settings.screen_width - 2 * alien_width
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number_aliens_x = int(available_space_x / (2 * alien_width))
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return number_aliens_x
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def get_number_rows(ai_settings, alien_height, ship_height):
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"""计算可容纳多少行外星人"""
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available_space_y = ai_settings.screen_height - 6 * alien_height - ship_height
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number_rows = int(available_space_y / (2 * alien_height))
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return number_rows
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def create_alien(ai_settings, screen, aliens, alien_number, row_number):
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"""创建一个外星人并把它加入当前行"""
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alien = Alien(ai_settings, screen)
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alien_width = alien.rect.width
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alien_height = alien.rect.height
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alien.x = alien_width + 2 * alien_width * alien_number
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alien.rect.x = alien.x
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alien.rect.y = alien_height + 2 * alien_height * row_number
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aliens.add(alien)
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"""
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外星人子弹更新
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"""
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def update_aliens_fire_bullet(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets):
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"""更新外星人发射的子弹"""
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for alien in aliens.sprites():
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flag_is_last_line = True
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for alien_next in aliens.sprites():
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if (alien.rect.y + alien.rect.height * 2 == alien_next.rect.y
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and alien.rect.x == alien_next.rect.x):
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flag_is_last_line = False
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break
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if flag_is_last_line:
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"""外星人有一定的概率发射子弹"""
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if random.randint(0,3000) < 1:
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new_alien_bullet = AlienBullet(ai_settings, screen, alien)
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alien_bullets.add(new_alien_bullet)
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check_alien_bullet_ship_collision(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets)
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alien_bullets.update()
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def check_alien_bullet_ship_collision(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets):
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"""响应外星人子弹击中飞船"""
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for alien_bullet in alien_bullets.sprites():
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if alien_bullet.rect.colliderect(ship.rect) and not ship.super_mode:
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ship_hit(ai_settings, screen, ship, bullets, aliens, stats, scoreboard, alien_bullets, super_bullets)
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break
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"""
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屏幕更新
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"""
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def update_screen(ai_settings, screen, ship, bullets, aliens, stats, play_button, scoreboard, alien_bullets, super_bullets, playername_inputbox):
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"""更新屏幕上的图像，并切换到新屏幕"""
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# 重绘屏幕
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screen.fill(ai_settings.bg_color)
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if playername_inputbox.login == False:
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playername_inputbox.draw_inputbox()
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# 绘制全部子弹
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for bullet in bullets.sprites():
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bullet.draw_bullet()
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for alien_bullet in alien_bullets.sprites():
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alien_bullet.draw_alien_bullet()
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for super_bullet in super_bullets.sprites():
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super_bullet.draw_bullet()
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# 绘制玩家飞船
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ship.blitme()
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# 绘制全部外星人
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aliens.draw(screen)
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scoreboard.ships.draw(screen)
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# 显示得分
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scoreboard.show_score()
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# 如果游戏处于非活动状态，就显示Play按钮
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if stats.game_active == False:
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play_button.draw_button()
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# 让最近绘制的屏幕可见
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pygame.display.flip()
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