[python] Games-play_plane

alien_invasion.py

ImportSYSImportPygame fromSettingsImportSettings fromShipImport shipImportgame_functions as GF fromPygame.spriteImportGroupdefrun_game ():#Initialize the game and create a screen objectpygame.init () ai_settings=Settings () screen=pygame.display.set_mode ((ai_settings.screen_width, Ai_settings.screnn_height)) pygame.display.set_caption ( 'Alien Invasion')    #Create a shipship =ship (ai_settings, Screen)#create a stored bullet groupBullets =Group ()#Set Background colorBg_color = (230, 230, 230)    #start the main loop of the game     whileTrue:gf.check_events (ai_settings, screen, ship, bullets) ship.update () gf.update_bullets (bullet S) gf.update_screen (ai_settings, screen, ship, bullets) run_game ()

bullet.py

ImportPygame fromPygame.spriteImportSpriteclassBullet (Sprite):def __init__(self, ai_settings, screens, ship): Super (Bullet, self).__init__() Self.screen=screen Self.rect=Pygame. Rect (0, 0, ai_settings.bullet_width, ai_settings.bullet_height) Self.rect.centerx=Ship.rect.centerx self.rect.top=Ship.rect.top#stores the bullet position in decimal notationSELF.Y =float (self.rect.y) Self.color=Ai_settings.bullet_color Self.speed_factor=Ai_settings.bullet_speed_factordefUpdate (self): SELF.Y-=Self.speed_factor#Update Bullet PositionSelf.rect.y =Self.ydefdraw_bullet (self): pygame.draw.rect (self.screen, self.color, Self.rect)

Game_functions

ImportSYSImportPygame fromBulletImportBulletdefcheck_events (ai_settings, screen, ship, bullets):#listening for keyboard and mouse events     forEventinchPygame.event.get ():ifEvent.type = =Pygame. QUIT:sys.exit ()elifEvent.type = =Pygame. Keydown:check_keydown_events (event, ai_settings, screen, ship, bullets)elifEvent.type = =Pygame. Keyup:check_keyup_events (event, Ship)defupdate_screen (ai_settings, screen, ship, bullets):#Redraw the screen every time you cycleScreen.fill (ai_settings.bg_color)#redraw all the bullets behind the spaceship and the Aliens .     forBulletinchbullets.sprites (): bullet.draw_bullet () ship.blitme ( )#make the recently drawn screen visiblePygame.display.flip ()defcheck_keydown_events (event, ai_settings, screen, ship, bullets):ifEvent.key = =Pygame. K_RIGHT:ship.moving_right=TrueelifEvent.key = =Pygame. K_LEFT:ship.moving_left=TrueelifEvent.key = =Pygame. K_space:#Create a bullet and add it to the group Bulletsfire_bullet (ai_settings, screen, ship, bullets)defcheck_keyup_events (event, ship):ifEvent.key = =Pygame. K_RIGHT:ship.moving_right=FalseelifEvent.key = =Pygame. K_LEFT:ship.moving_left=Falsedefupdate_bullets (bullets): bullets.update ()#remove bullets that have disappeared     forBulletinchbullets.copy ():ifBullet.rect.bottom <=0:bullets.remove (bullet)deffire_bullet (ai_settings, screen, ship, bullets):ifLen (bullets) <Ai_settings.bullets_allowed:new_bullet=Bullet (ai_settings, screen, ship) bullets.add (new_bullet)

settings.py

 class   Settings ():  def   #   screen settings  self.screen_width = 1200 s Elf.screnn_height  = 800 self.bg_color  = (n, v, 230) self.ship_speed_factor  = 1.5 #   Bullet set  self.bullet_speed_factor = 1 self.bullet_width  = 3 Self.bullet_height  = 15 Self.bullet_color  = $, 60 self.bullets_allowed  = 5 

ship.py

ImportPygameclassship ():def __init__(self, ai_settings, screen): self.screen=screen self.ai_settings=ai_settings#load the spaceship image and get the outer rectangleSelf.image = Pygame.image.load ('images/ship.bmp') Self.rect=self.image.get_rect () Self.screen_rect=Screen.get_rect ()#put each new spaceship in the center of the bottom of the screen .Self.rect.centerx =Self.screen_rect.centerx Self.rect.bottom=Self.screen_rect.bottom#storing small values in the Ship's property centerSelf.center =float (self.rect.centerx)#Mobile IdentitySelf.moving_right =False Self.moving_left=FalsedefBlitme (self):#draw a spaceship at the specified position on the screenself.screen.blit (self.image, Self.rect)defUpdate (self):ifSelf.moving_right andSelf.rect.right <Self.screen_rect.right:self.center+=Self.ai_settings.ship_speed_factorelifSelf.moving_left andSelf.rect.left >0:self.center-=Self.ai_settings.ship_speed_factor#Update Rect ObjectSelf.rect.centerx = Self.center

[python] Games-play_plane