import pygame
from pygame.sprite import Group
from settings import Settings
from game_stats import gameStats
from ship import Ship
from button import Button
import game_functions as gf
def run_game():
  #初始化背景設置
  pygame.init()
  #創(chuàng)建一個Settings實例，并將其儲存在變量ai_settings中
  ai_settings = Settings()
  #創(chuàng)建一個名為screen的顯示窗口，游戲的所有圖形元素都在其中繪制
  screen = pygame.display.set_mode((ai_settings.screen_heigth,
                   ai_settings.screen_width))
  pygame.display.set_caption("Aline invasion")
  #創(chuàng)建play按鈕
  play_button = Button(ai_settings,screen,"play")
  #創(chuàng)建一個用于存儲游戲統(tǒng)計數(shù)據(jù)的實例
  stats = gameStats(ai_settings)
  #創(chuàng)建一艘飛船,一個子彈編組，和一個外星人編組
  ship =Ship(ai_settings,screen)
  bullets = Group()
  aliens = Group()
  #創(chuàng)建外星人群
  gf.create_fleet(ai_settings, screen, ship, aliens)
  #開始游戲主循環(huán)
  while True:
    #監(jiān)視鼠標和鍵盤事件
    gf.check_events(ai_settings,screen,ship,bullets)
    if stats.game_active:
      # 飛船移動
      ship.update()
      #子彈移動
      gf.update_bullets(ai_settings, screen, ship, aliens,bullets)
      gf.update_aliens(ai_settings, stats, screen, ship, aliens, bullets)
    #重繪屏幕
    gf.update_screen(ai_settings, screen, stats, ship, bullets, aliens, play_button)
run_game()

import sys
import pygame
from bullet import Bullet
from alien import Alien
from time import sleep
def check_keydown_events(event,ai_settings,screen, ship, bullets):
  '''響應按下'''
  if event.key == pygame.K_RIGHT:
    ship.moving_right = True
  elif event.key == pygame.K_LEFT:
    ship.moving_left = True
  elif event.key == pygame.K_UP:
    ship.moving_up = True
  elif event.key == pygame.K_DOWN:
    ship.moving_down = True
  elif event.key == pygame.K_q:
    sys.exit()
  #當飛船移動時也能發(fā)射子彈
  if event.key == pygame.K_SPACE:
    fire_bullet(ai_settings, screen, ship, bullets)
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
  elif event.key == pygame.K_UP:
    ship.moving_up = False
  elif event.key == pygame.K_DOWN:
    ship.moving_down = False
def check_events(ai_settings,screen,ship, bullets):
  '''響應鼠標鍵盤事件'''
  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)
def update_screen(ai_settings, screen, stats, ship, bullets, aliens, play_button):
  # 每次循環(huán)時都會重繪屏幕
  # 調(diào)用方法screen_fill()——用背景色填充屏幕
  screen.fill(ai_settings.screen_bg_color)
  #在飛船和外星人后面重繪所有子彈
  for bullet in bullets.sprites():
    bullet.draw_bullet()
  ship.blitme()
  aliens.draw(screen)
  #aline.blitme()
  #如果游戲處于非活動狀態(tài)，就繪制play按鈕
  if not stats.game_active:
    play_button.draw_button()
  # 讓最近繪制的屏幕可見
  pygame.display.flip()
def update_bullets(ai_settings, screen, ship, aliens, bullets):
  bullets.update()
  # 刪除已消失的子彈
  for bullet in bullets.copy():
    if bullet.rect.bottom <= 0:
      bullets.remove(bullet)
  #print(len(bullets)) # 顯示當前在屏幕上有多少個子彈，從而核實子彈確實被刪除了
  check_bullet_alien_collide(ai_settings, screen, ship, aliens, bullets)
def fire_bullet(ai_settings, screen, ship, bullets):
  if len(bullets) < ai_settings.bullet_num:
    # 創(chuàng)建一顆子彈，并將其加入到編組bullets中
    new_bullet = Bullet(ai_settings, screen, ship)
    bullets.add(new_bullet)
def check_bullet_alien_collide(ai_settings, screen, ship, aliens, bullets):
  '''檢查是否有子彈擊中了外星人
    如果有，就刪除相應的外星人和子彈
    遍歷編組bullets中所有子彈，再遍歷編組aliens中的每個外星人。
    每當子彈與外星人重疊時，groupcllid()就在它返回的字典中添加一個鍵值對。
    兩個實參True告訴pygame刪除發(fā)生碰撞的子彈和外星人
  '''
  collisions = pygame.sprite.groupcollide(bullets, aliens, True, True)
  if len(aliens) == 0:
    # 刪除現(xiàn)有所有子彈
    bullets.empty()
    # 當前外星人群消滅干凈后，將會立刻出現(xiàn)一個新的外星人群
    create_fleet(ai_settings, screen, ship, aliens)
def get_number_aliens_x(ai_settings, alien_width):
  available_space_x = ai_settings.screen_heigth - 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):
  '''計算屏幕可以容納多少行外星人'''
  #以外星人的高度來記長，減去飛船的高度和空出的外星人與飛船間的距離
  available_space_y = (ai_settings.screen_heigth - (10*alien_height) - ship_height)
  number_rows = int(available_space_y/(2*alien_height))    #number_rows為外星人的行數(shù)
  return number_rows
def crate_aline(ai_settings, screen, aliens, alien_number, rows_number):
  # 創(chuàng)建一個外星人并將其加入當前行
  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*rows_number
  aliens.add(alien)
def create_fleet(ai_settings, screen, ship, aliens):
  '''創(chuàng)建一個外星人群'''
  #創(chuàng)建一個外星人，并計算一行可容納多少個外星人'''
  #外星人的間距為外星人的寬度'''
  alien = Alien(ai_settings, screen)
  number_aliens_x = get_number_aliens_x(ai_settings, alien.rect.width )
  number_rows = get_number_rows(ai_settings, ship.rect.height, alien.rect.height)
  #穿件外星人群
  for row_number in range(number_rows):
    #創(chuàng)建一個外星人
    for alien_number in range(number_aliens_x):
      crate_aline(ai_settings, screen, aliens, alien_number, row_number)
def check_fleet_edges(ai_settings, aliens):
  '''當外星人到達屏幕邊緣時的應對措施'''
  for alien in aliens.sprites():
    if alien.check_edges():
      change_fleet_direction(ai_settings, aliens)
      break
def change_fleet_direction(ai_settings, aliens):
  '''將整群外星人下移，并改變他們的方向'''
  for alien in aliens.sprites():
    alien.rect.y +=ai_settings.fleet_drop_speed
  ai_settings.fleet_direction *= -1
def ship_hit(ai_settings, stats, screen, ship, aliens, bullets):
  '''響應被外星人撞到的飛船'''
  if stats.ships_left > 0:
    # 將ship_left減1
    stats.ships_left -= 1
    # 清空外星人列表和子彈列表
    aliens.empty()
    bullets.empty()
    # 創(chuàng)建一群新的外星人，并將飛船放到屏幕地端中央
    create_fleet(ai_settings, screen, ship, aliens)
    ship.center_ship()
    #暫停
    sleep(0.5)
  else:
    stats.game_active = False
def check_aliens_bottom(ai_setting, stats, screen, ship, aliens, bullets):
  '''檢查是否有外星人到達了屏幕底部'''
  screen_rect = screen.get_rect()
  for alien in aliens.sprites():
    if alien.rect.bottom >= screen_rect.bottom:
      #像飛船被撞到一樣處理
      ship_hit(ai_setting, stats, screen, ship, aliens, bullets)
      break
def update_aliens(ai_settings, stats, screen, ship, aliens, bullets):
  '''檢查是否有外星人位于屏幕邊緣，并更新外星人的位置'''
  check_fleet_edges(ai_settings, aliens)
  #更新外星人群中所有外星人的位置'''
  aliens.update()
  #檢測外星人和飛船之間的碰撞
  if pygame.sprite.spritecollideany(ship,aliens):
    ship_hit(ai_settings, stats, screen, ship, aliens, bullets)
  #檢查是否有外星人到達屏幕底端
  check_aliens_bottom(ai_settings, stats, screen, ship, aliens, bullets)

import pygame
class Ship(object):
  def __init__(self,ai_settings,screen):   #參數(shù)screen指定了要將飛船繪制到什么地方
    self.screen = screen
    self.ai_settings = ai_settings
    #加載飛船圖像并獲取其外接矩形
    self.image = pygame.image.load(r'E:\pycharm project\飛機大戰(zhàn)\images\ship.bmp')   #加載圖像，這個函數(shù)返回一個表示飛船的surface存儲到self.image中
    self.rect = self.image.get_rect()    #使用get_rect()獲取相應的surface的屬性rect
    self.screen_rect = screen.get_rect()
    #將每艘新飛船放在屏幕底部中央
    self.rect.centerx = self.screen_rect.centerx #將self.rect.centerx(飛船中心的x坐標)設置為表示屏幕的矩形屬性centerx
    self.rect.bottom = self.screen_rect.bottom #將self.rect.bottom(飛船下邊緣的y坐標)設置為表示屏幕的矩形的屬性bottom
    #在飛船的屬性center中存儲小數(shù)值
    self.center = float(self.rect.centerx)
    #移動標志
    self.moving_right = False    #添加屬性：moving_right
    self.moving_left = False
    self.moving_up = False
    self.moving_down = False
  def update(self):
    '''根據(jù)移動標志調(diào)整飛船的位置'''
    if self.moving_right and self.rect.right<self.screen_rect.right: #self.rect.right:返回飛船外接矩形右端的x坐標
      self.rect.centerx += self.ai_settings.ship_speed_factor                  #self.screen_rect.right：返回屏幕右側(cè)的坐標
    if self.moving_left and self.rect.left>0:    #與上同理
      self.rect.centerx -= self.ai_settings.ship_speed_factor
    if self.moving_up and self.rect.top>self.screen_rect.top:
      self.rect.bottom -= self.ai_settings.ship_speed_factor
    if self.moving_down and self.rect.bottom<self.screen_rect.bottom:
      self.rect.bottom += self.ai_settings.ship_speed_factor
  def blitme(self):
    '''在指定位置繪制飛船'''
    self.screen.blit(self.image,self.rect)   #根據(jù)self.rect指定的位置將圖像繪制到屏幕上
  def center_ship(self):
    '''將飛船放在屏幕上居中'''
    self.center = self.screen_rect.centerx

import pygame
from pygame.sprite import Sprite
import os
class Alien(Sprite):
  '''代表單個外星人類'''
  def __init__(self, ai_settings, screen):
    '''初始化外星人并設置其初始位置'''
    super(Alien,self).__init__()
    self.ai_settings = ai_settings
    self.screen = screen
    #加載外星人圖像，并設置七rect屬性
    self.image = pygame.image.load(r'E:\pycharm project\飛機大戰(zhàn)\images\alien.bmp')
    self.rect = self.image.get_rect() # 使用get_rect()獲取相應的surface的屬性rect
    #設置外星飛船的初始位置
    self.rect.x = self.rect.width
    self.rect.y= self.rect.height
    #儲存外星人的準確位置
    self.x= float(self.rect.x)
  def check_edges(self):
    '''如果外星人位于屏幕邊緣就返回True'''
    screen_rect = self.screen.get_rect()
    if self.rect.right > screen_rect.right:
      return True
    elif self.rect.left < screen_rect.left:
      return True
  def update(self):
    '''向右移動外星人'''
    self.x += (self.ai_settings.alien_speed_factor*self.ai_settings.fleet_direction)
    self.rect.x = self.x
  def blitme(self):
    '''在指定位置繪制外星人'''
    self.screen.blit(self.image,self.rect)

import pygame.ftfont
class Button():
  def __init__(self,ai_settings, screen, msg):
    '''初始化按鈕的屬性'''
    self.screen = screen
    self.screen_rect = screen.get_rect()
    #設置按鈕的尺寸和其他屬性
    self.width, self.height = 200,50
    self.button_color = (0,255,255)
    self.text_color = (255,255,255)
    self.font = pygame.font.SysFont(None,48)
    #創(chuàng)建按鈕的rect對象，并使其居中
    self.rect = pygame.Rect(0,0,self.width,self.height)
    self.rect.center = self.screen_rect.center
    #按鈕的標簽只需創(chuàng)建一次
    self.prep_msg(msg)
  def prep_msg(self,msg):
    '''將msg渲染為圖像，并使其在按鈕上居中'''
    self.msg_image = self.font.render(msg,True,self.text_color,self.button_color)
    self.msg_image_rect = self.msg_image.get_rect()
    self.msg_image_rect.center = self.rect.center
  def draw_button(self):
    '''繪制一個用顏色填充的按鈕，在繪制文本'''
    self.screen.fill(self.button_color,self.rect)
    self.screen.blit(self.msg_image,self.msg_image_rect)

import pygame
from pygame.sprite import Sprite

class Bullet(Sprite):    #Bullet類繼承從模塊pygame.sprite中導入的Sprite類
  '''一個對飛船發(fā)射的子彈進行管理'''    #通過使用精靈，可將游戲中相關的元素編組,進而同時操作編組中的所有元素
  def __init__(self,ai_settings, screen, ship):
    '''在飛船所處的位置創(chuàng)建一個子彈對象'''
    super(Bullet,self).__init__()    #調(diào)用super()來繼承Sprite
    self.screen = screen

    #在（0，0）處創(chuàng)建一個表是子彈的矩形，在設置正確的位置
    self.rect = pygame.Rect(0, 0, ai_settings.bullet_width,ai_settings.bullet_height)  #子彈并非基于圖像，則必須使用pygame.Rect()從空白創(chuàng)建一個矩形
    self.rect.centerx = ship.rect.centerx
    self.rect.top = ship.rect.top

    #存儲用小數(shù)表示的子彈位置
    self.y = float(self.rect.y)   #將子彈的y坐標存儲為小數(shù)值

    #設置子彈顏色和速度
    self.color = ai_settings.bullet_color
    self.speed_factor = ai_settings.bullet_speed_factor

  def update(self):
    '''更新表示子彈位置的小數(shù)值'''
    self.y -= self.speed_factor
    #更新表示子彈的rect的位置
    self.rect.y = self.y

  def draw_bullet(self):
    '''在屏幕上繪制子彈'''
    pygame.draw.rect(self.screen,self.color,self.rect)   #函數(shù)draw.rect()使用存儲在self.color中
                                # 的顏色填充表示子彈的rect占據(jù)的屏幕

'''跟蹤游戲統(tǒng)計數(shù)據(jù)'''
class gameStats():
  def __init__(self, ai_settings):
    self.ai_settings = ai_settings
    self.reset_stats()
    #游戲剛啟動時處于非活動狀態(tài)
    self.game_active = False

  def reset_stats(self):
    '''初始化在游戲運行期間可能變化的統(tǒng)計信息'''
    self.ships_left = self.ai_settings.ship_limit

class Settings():
  def __init__(self):
    #屏幕設置
    self.screen_heigth = 1000
    self.screen_width = 700
    self.screen_bg_color = (230,230,230)  #設置背景色
    self.ship_speed_factor = 1.5
    self.ship_limit = 3

    self.bullet_speed_factor = 1
    self.bullet_width = 3
    self.bullet_height = 15
    self.bullet_color = 60,60,60
    self.bullet_num = 6

    #外星人設置
    self.alien_speed_factor = 1
    #fleet_drop_speed為有外星人撞到屏幕邊緣時下降的速度
    self.fleet_drop_speed = 10
    #當fleet_direction為1時向右，為-1時向左
    self.fleet_direction = 1