import sys
import pygame
from bullet import Bullet
from alien import Alien
from time import sleep
def get_number_aliens_x(ai_settings, alien_width):
"""计算一行可容纳多少个外星人"""
available_space_x = ai_settings.screen_width - 2 * alien_width
number_aliens_x = int(available_space_x / (2 * alien_width))
return number_aliens_x
def get_number_rows(ai_settings, ship_height, alien_height):
"""计算屏幕可容纳多少行外星人"""
available_space_y = (ai_settings.screen_height -
(3 * alien_height) - ship_height)
number_rows = int(available_space_y / (2 * alien_height))
return number_rows
def creat_alien(ai_settings, screen, aliens, alien_number, row_number):
# 创建一个外星人并将其加入当前行
alien = Alien(ai_settings, screen)
alien_width = alien.rect.width
alien.x = alien_width + 2 * alien_width * alien_number
alien.rect.x = alien.x
alien.rect.y = alien.rect.height + 2 * alien.rect.height * row_number
aliens.add(alien)
def create_fleet(ai_sittings, screen, ship, aliens):
# 外星人间距为外星人宽度
alien = Alien(ai_sittings, screen)
number_aliens_x = get_number_aliens_x(ai_sittings, alien.rect.width)
number_rows = get_number_rows(ai_sittings, ship.rect.height, alien.rect.height)
# 创建外星人群
for row_number in range(number_rows):
# 创建第一个外星人
for alien_number in range(number_aliens_x):
creat_alien(ai_sittings, screen, aliens, alien_number, row_number)
def check_keydown_events(event, ai_settings, screen, ship, bullets):
if event.key == pygame.K_RIGHT:
# 向右移动飞船
ship.moving_right = True
elif event.key == pygame.K_LEFT:
ship.moving_left = True
elif event.key == pygame.K_SPACE:
# 创建新子弹并将其加入到编组bullets中
fire_bullet(ai_settings, screen, ship, bullets)
elif event.key == pygame.K_q:
sys.exit()
def fire_bullet(ai_settings, screen, ship, bullets):
"""如果还没到达限制,就发射一颗子弹"""
# 创建新子弹并将其加入到编组bullets中
if len(bullets) < ai_settings.bullet_allowed:
new_bullet = Bullet(ai_settings, screen, ship)
bullets.add(new_bullet)
def check_keyup_events(event, ship):
if event.key == pygame.K_RIGHT:
ship.moving_right = False
elif event.key == pygame.K_LEFT:
ship.moving_left = False
def check_events(ai_settings, screen, stats, sb, play_button, ship, aliens, bullets):
"""响应按键和鼠标事件"""
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
check_keydown_events(event, ai_settings, screen, ship, bullets)
elif event.type == pygame.KEYUP:
check_keyup_events(event, ship)
elif event.type == pygame.MOUSEBUTTONDOWN:
mouse_x, mouse_y = pygame.mouse.get_pos()
check_play_button(ai_settings, screen, stats, sb, play_button, ship,
aliens, bullets, mouse_x, mouse_y)
def check_play_button(ai_settings, screen, stats, sb, play_button, ship,
aliens, bullets, mouse_x, mouse_y):
"""在玩家单击Play按钮时开始游戏"""
button_clicked = play_button.rect.collidepoint(mouse_x, mouse_y)
if button_clicked and not stats.game_active:
# 重置游戏设置
ai_settings.initialize_dynamic_settings()
# 隐藏光标
pygame.mouse.set_visible(False)
# 重置游戏统计信息
stats.reset_stats()
stats.game_active = True
# 重置记分牌图像
sb.prep_score()
sb.prep_high_score()
sb.prep_level()
sb.prep_ships()
# 清空外星人列表和子弹列表
aliens.empty()
bullets.empty()
# 创建一群新的外星人,并让飞船居中
create_fleet(ai_settings, screen, ship, aliens)
ship.center_ship()
def update_screen(ai_settings, screen, stats, sb, ship, alien, bullets, play_button):
"""更新屏幕上的图像,并切换到新屏幕"""
screen.fill(ai_settings.bg_color)
# 在飞船和外星人后面重绘所有子弹
for bullet in bullets.sprites():
bullet.draw_bullet()
ship.blitme()
alien.draw(screen)
# 显示得分
sb.show_score()
# 如果游戏处于非活动状态就绘制Play按钮
if not stats.game_active:
play_button.draw_button()
# 让最近绘制的屏幕可见
pygame.display.flip()
def update_bullets(ai_settings, screen, stats, sb, ship, aliens, bullets):
"""更新子弹的位置,并删除已消失的子弹"""
# 更新子弹的位置
bullets.update()
for bullet in bullets.copy():
if bullet.rect.bottom <= 0:
bullets.remove(bullet)
# print(len(bullets))
check_bullet_alien_collisions(ai_settings, screen, stats, sb, ship, aliens, bullets)
def check_bullet_alien_collisions(ai_settings, screen, stats, sb, ship, aliens, bullets):
# 检查是否有子弹击中外星人
# 如果击中,就删除相应的子弹和外星人
collisions = pygame.sprite.groupcollide(bullets, aliens, True, True)
if collisions:
for aliens in collisions.values():
stats.score += ai_settings.alien_points
sb.prep_score()
check_high_score(stats, sb)
if len(aliens) == 0:
# 删除现有的子弹,加快游戏节奏,并创建一群新的外星人
# 如果整群外星人都被消灭就提高一个等级
bullets.empty()
ai_settings.increase_speed()
# 提高等级
stats.level += 1
sb.prep_level()
create_fleet(ai_settings, screen, ship, aliens)
def check_fleet_edges(ai_settings, aliens):
"""有外星人到达边缘时采取相应措施"""
for alien in aliens.sprites():
if alien.check_edges():
change_fleet_direction(ai_settings, aliens)
break
def change_fleet_direction(ai_settings, aliens):
"""将整群外星人下移,并改变它们的方向"""
for alien in aliens.sprites():
alien.rect.y += ai_settings.fleet_drop_speed
ai_settings.fleet_direction *= -1
def ship_hit(ai_settings, screen, stats, sb, ship, aliens, bullets):
"""响应被外星人撞到的飞船"""
if stats.ships_left > 0:
# Decrement ships_left.
stats.ships_left -= 1
# 更新记分牌
sb.prep_ships()
else:
stats.game_active = False
pygame.mouse.set_visible(True)
# 清空外星人列表和子弹列表
aliens.empty()
bullets.empty()
# 创建一群新的外星人,并将飞船放到屏幕底端中央
create_fleet(ai_settings, screen, ship, aliens)
ship.center_ship()
# 暂停
sleep(0.5)
def check_aliens_bottom(ai_settings, screen, stats, sb, ship, aliens, bullets):
"""检查是否有外星人到达屏幕底端"""
screen_rect = screen.get_rect()
for alien in aliens.sprites():
if alien.rect.bottom >= screen_rect.bottom:
# 像飞船被撞到一样处理
ship_hit(ai_settings, screen, stats, sb, ship, aliens, bullets)
break
def update_aliens(ai_settings, screen, stats, sb, ship, aliens, bullets):
"""检查是否有外星人位于屏幕边缘,并更新整群外星人的位置"""
check_fleet_edges(ai_settings, aliens)
aliens.update()
# 检查外乡人和飞船之间的碰撞
if pygame.sprite.spritecollideany(ship, aliens):
ship_hit(ai_settings, screen, stats, sb, ship, aliens, bulle
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有趣的打飞机游戏,没事来一炮吧.zip (37个子文件)
settings.py 1KB
scoreboard.py 3KB
alien.py 1KB
bullet.py 1KB
打老赫.py 1KB
images
aliens.bmp 7KB
a.bmp 10KB
aliens.jpg 8KB
ship.bmp 8KB
ship.py 1KB
.idea
misc.xml 192B
workspace.xml 55KB
pythonProject28.iml 747B
.name 11B
inspectionProfiles
Project_Default.xml 404B
profiles_settings.xml 174B
modules.xml 2KB
.gitignore 254B
button.py 1KB
game_functions.py 8KB
__pycache__
scoreboard.cpython-38.pyc 3KB
bullet.cpython-37.pyc 1KB
alien.cpython-37.pyc 1KB
ship.cpython-37.pyc 1KB
ship.cpython-38.pyc 1KB
settings.cpython-38.pyc 1KB
settings.cpython-37.pyc 1KB
game_stats.cpython-37.pyc 835B
bullet.cpython-38.pyc 1KB
game_functions.cpython-38.pyc 6KB
alien.cpython-38.pyc 1KB
button.cpython-38.pyc 1KB
scoreboard.cpython-37.pyc 3KB
game_stats.cpython-38.pyc 851B
button.cpython-37.pyc 1KB
game_functions.cpython-37.pyc 6KB
game_stats.py 570B
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