def run_game():

    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))

    pygame.display.set_caption("Alien Invasion")

    play_button = Button(ai_settings, screen, "PLAY")
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)
    ship = Ship(ai_settings, screen)
    ufo = UFO(ai_settings, screen)
    bullets = Group()
    aliens = Group()
    enemy_bullets = Group()

    # Create the fleet of aliens
    gf.create_fleet(ai_settings, screen, ship, aliens)
    ai_settings.alien_number = 0
    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button, ship,
                        aliens, bullets)
        if stats.game_active:
            ship.update()
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets, enemy_bullets, ufo)
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
                             bullets, enemy_bullets, ufo)
            gf.update_ufo(ai_settings, ufo)

        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         play_button, enemy_bullets, ufo)
示例#2
0
def run_game():
    # Initialize pygame, settings, and screen object.
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")

    # Make the Play button.
    play_button = Button(ai_settings, screen, "Play")
    high_score_button = Button_high(ai_settings, screen, "High Score")
    startsc = Startscreen(ai_settings, screen, play_button, high_score_button)
    game = Game_sound()

    # Create an instance to store game statistics, and a scoreboard.
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    # Set the background color.
    bg_color = (230, 230, 230)

    # Make a ship, a group of bullets, and a group of aliens.
    ship = Ship(ai_settings, screen)
    bullets = Group()
    aliens = Group()
    #UFO = ufo(ai_settings, screen)

    ufo_respawn_time = randint(10, 18) * 1000  # 10-18s at level 1
    ufo_timer = ufo_respawn_time
    delta_time = 0

    # Create the fleet of aliens.
    gf.create_fleet(ai_settings, screen, ship, aliens)

    # Start the main loop for the game.
    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button, ship,
                        aliens, bullets, game)

        if stats.game_active:
            ship.update()
            #  gf.create_ufo(ai_settings,screen,aliens)

            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets, game)
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
                             bullets)
            gf.update_ufo(ai_settings, screen, ufo_respawn_time, ufo_timer,
                          aliens, delta_time)

        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         play_button, high_score_button, startsc)
def run_game():
    # Initialize pygame, settings, and screen object
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Inveders")
    clock = pygame.time.Clock()
    # make a ship
    ship = Ship(ai_settings, screen)
    ufo = UFO(ai_settings, screen)

    play_button = Button(screen, "Play", 200)
    score_button = Button(screen, "High Scores", 300)
    screen_rect = screen.get_rect()
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    bullets = Group()
    lasers = Group()
    aliens = Group()
    explosions = Group()
    bunkers = [
        Bunker(screen_rect.width / 4, screen_rect.bottom - 150, screen, 1),
        Bunker(screen_rect.width / 2, screen_rect.bottom - 150, screen, 2),
        Bunker(3 * screen_rect.width / 4, screen_rect.bottom - 150, screen, 3),
        Bunker(screen_rect.width, screen_rect.bottom - 150, screen, 4)
    ]

    # Start the main loop for the game.
    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button,
                        score_button, ship, aliens, bullets)

        if stats.game_active:

            pygame.mixer.music.load('sounds/bgm.wav')
            pygame.mixer.music.set_volume(400)
            pygame.mixer.music.play(-1)
            ship.update()

            gf.update_ufo(ufo, ai_settings)
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets, lasers, ufo, explosions, bunkers)
            gf.update_aliens(ai_settings, stats, screen, sb, ship, ufo, aliens,
                             bullets, lasers)
            gf.update_explosions(explosions)

        gf.update_screen(ai_settings, stats, screen, sb, ship, ufo, aliens,
                         bullets, lasers, play_button, score_button,
                         explosions, bunkers)
        clock.tick(60)
示例#4
0
def run_game():
    pygame.init()

    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))

    pygame.display.set_caption("Alien Invasion")

    # Make the play button
    play_button = Button(ai_settings, screen, "Play!")

    # Create an instance to store game statistics and create a scoreboard
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    # make a ship, a group of bullets, and a group of aliens, a group of barriers, and a UFO
    ship = Ship(ai_settings, screen)
    bullets = Group()
    aliens = Group()
    # barrier = Group()
    ufo = UFO(ai_settings, screen)

    # create the fleet of aliens
    gf.create_fleet(ai_settings, screen, ship, aliens)

    # create a way to keep track of time (for the ufo spawn)
    time_elapsed = 0
    clock = pygame.time.Clock()

    # Start the main loop for the game
    while True:

        gf.check_events(ai_settings, screen, stats, sb, play_button, ship,
                        aliens, bullets)
        dt = clock.tick()
        time_elapsed += dt

        if stats.game_active:
            ship.update()
            gf.update_ufo(ai_settings, screen, ufo)
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets)
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
                             bullets)

        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         play_button, ufo)
示例#5
0
def run_game():
    # Initialize pygame, settings, and screen object
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")
    ufo_sound = pygame.mixer.Sound('sounds/UFO_Sound_Effect.wav')

    # Make a ship, a group of bullets, and a group of aliens.
    ship = Ship(ai_settings, screen)
    ufo = Ufo(ai_settings, screen)
    bullets = Group()
    aliens = Group()
    lasers = Group()
    bunkers = Group()

    # Create the fleet of aliens.
    gf.create_fleet(ai_settings, screen, ship, aliens)

    # Create an instance to store game statistics and create a scoreboard.
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    # Make the Play Button.
    play_button = PlayButton(ai_settings, screen, "Play")
    high_scores_button = HighScoresButton(ai_settings, screen, "High Scores")

    # Start the main loop for the game
    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button,
                        high_scores_button, ship, aliens, ufo, bullets,
                        bunkers)

        if stats.game_active:
            ship.update()
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets)
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
                             bullets)
            gf.update_ufo(ai_settings, stats, sb, ufo, bullets, ufo_sound)
            #gf.update_bunkers(ai_settings, bullets, lasers, bunkers)
        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, ufo,
                         bullets, play_button, high_scores_button, bunkers)
示例#6
0
def run_game():
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")

    play_button = Button(screen, "Play", "Highscores")

    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats, 'images/highscores.txt',
                    play_button)

    ship = Ship(ai_settings, screen)
    ufo = Group()
    bullets = Group()
    alien_bullets = Group()
    aliens = Group()
    bunkers = Group()

    pygame.mixer.music.load('sounds/winter.wav')
    pygame.mixer.music.play(-1)

    menu = Menu(ai_settings, screen, play_button, aliens, alien_bullets)

    gf.create_ufo(ai_settings, screen, aliens, alien_bullets)

    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button, ship,
                        aliens, bullets, alien_bullets, bunkers)

        if stats.game_active:
            ship.update()
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets, alien_bullets, menu, ufo, bunkers)
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
                             bullets, alien_bullets, menu, ufo)
            gf.update_ufo(ai_settings, screen, ufo)
            gf.update_bunker(bunkers)

        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         alien_bullets, menu, ufo, bunkers)
示例#7
0
def run_game():

    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")

    # play button
    play_button = Button(ai_settings, screen, "PLAY")
    hs = Highscorelist(ai_settings, screen, "HIGHSCORES")
    # Create an instance to store game statistics
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    ship = Ship(ai_settings, screen)
    bullets = Group()
    #ebullets = Group()
    aliens = Group()
    alien = Alien(ai_settings, screen)
    ufos = Group()
    ufo = UFO(ai_settings, screen)

    # Create the fleet of aliens
    gf.create_fleet(ai_settings, screen, ship, aliens)

    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button, ship,
                        aliens, bullets, hs)
        if stats.game_active:
            ship.update()
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets, ufos)
            #gf.update_ebullets(ai_settings, screen, stats, sb, ship, aliens)
            gf.update_aliens(ai_settings, stats, screen, sb, ship, aliens,
                             bullets)
            gf.update_ufo(ai_settings, screen, stats, sb, ship, bullets, ufos)
        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         play_button, hs, ufos)
def run_game():
    # Initialize pygame, settings, and screen object.
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Space Invaders")
    # Makes the Play button.
    play_button = Button(ai_settings, screen, "Play Game")
    # Makes the game title.
    titlefont = pygame.font.SysFont('Comic Sans MS', 70)
    game_title = titlefont.render('Alien Invasion', False, (255, 255, 255))
    # Makes the infosheet
    scoresheet = pygame.image.load('images/infosheet.png')
    # Make the High Scores button.
    high_scores_button = Button(ai_settings, screen, "High Scores")
    high_scores_button.make_high_scores_button("High Scores")
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)
    # Make a ship
    ship = Ship(ai_settings, screen)
    bullets = Group()
    aliens = Group()
    albullets = Group()
    bunkers = Group()
    gf.create_bunkers(ai_settings, screen, bunkers)
    ufo = Ufo(ai_settings, screen)
    ufo.blitme()
    # Create the fleet of aliens.
    gf.create_fleet(ai_settings, screen, ship, aliens)
    # Load sounds
    ai_settings.change_sound = pygame.mixer.Sound("sounds/boop.wav")

    # Start the main loop for the game.
    while True:
        # Check for key presses or mouse clicks
        gf.check_events(ai_settings, screen, stats, sb, play_button,
                        high_scores_button, ship, aliens, bullets, bunkers)
        if stats.game_active:
            ticks = pygame.time.get_ticks()
            ai_settings.time = ticks
            if ai_settings.time >= 13000:
                ai_settings.change_sound = pygame.mixer.Sound(
                    "sounds/boop2.wav")
            if ai_settings.time >= 20000:
                ai_settings.change_sound = pygame.mixer.Sound(
                    "sounds/boop3.wav")
            # Move the ship left/right
            ship.update(ai_settings)
            # Move bullets and check for alien collisions
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets, albullets, ufo, bunkers)
            # Move the aliens and check for edge collisions
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
                             bullets, bunkers)
            # Move the UFO across
            gf.update_ufo(ai_settings, screen, stats, sb, ship, aliens,
                          bullets, ufo)
            gf.drop_lead(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         albullets, bunkers)
        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         albullets, play_button, high_scores_button,
                         game_title, scoresheet, ufo, bunkers)
    def frame_step(self, simplify=False, inputs=None, name="Player"):
        init_bullet_count = len(self.bullets)
        gf.check_events(self.ai_settings, self.screen, self.sounds, self.stats, self.sb, self.scores, self.play_button, self.high_score_button,
                        self.ship, self.aliens, self.ufo, self.bullets, self.bullet_delay, self.barriers, self.alien_bullets, self.smokes, inputs)

        bullet_count = len(self.bullets)
        alien_count = len(self.aliens)
        ufo_state = self.ufo.hit
        ship_pos = self.ship.rect.left

        if init_bullet_count < bullet_count:
            self.bullet_delay = self.ai_settings.bullet_delay
        elif self.bullet_delay > 0:
            self.bullet_delay -= 1

        if self.stats.game_active:
            gf.update_timers(self.alien_timer, self.ufo_timer, self.ship_timer, self.smoke_timer)
            gf.update_ship(self.stats, self.sb, self.scores, self.ship, self.aliens, self.ufo, self.bullets, self.alien_bullets, self.ship_timer, self.alien_timer, simplify)
            if not self.ship.hit:
                gf.update_bullets(self.ai_settings, self.screen, self.sounds, self.stats, self.sb, self.ship, self.aliens, self.ufo,
                                  self.bullets, self.bullet_delay, self.barriers, self.alien_bullets, self.smokes, self.alien_timer, self.ufo_timer, self.smoke_timer, simplify)
                gf.update_aliens(self.ai_settings, self.screen, self.sounds, self.ship, self.aliens, self.barriers, self.alien_bullets, self.alien_timer, simplify)
                gf.update_ufo(self.ufo, self.ufo_timer, simplify)
                gf.update_smokes(self.smokes, self.smoke_timer)

        gf.update_screen(self.ai_settings, self.screen, self.stats, self.sb, self.ship, self.aliens, self.ufo, self.bullets, self.menu_bg,
                         self.play_button, self.high_score_button, self.barriers, self.alien_bullets, self.smokes, simplify)

        pygame.display.update()

        reward = 0.0

        if len(self.aliens) > 0:
            if len(self.aliens) < alien_count or self.ufo.hit != ufo_state:
                reward += 0.5
            elif len(self.bullets) == 0:
                reward -= 0.2
            if gf.ship_in_invader_range(self.ai_settings, self.ship, self.aliens, self.ufo):
                reward += 0.1
            else:
                reward -= 0.1
            reward += gf.bullet_aim(self.ai_settings, self.bullets, self.aliens, self.ufo)
            reward += gf.ship_in_bullet_path(self.ship, self.alien_bullets)

        if reward > 1.0:
            reward = 1.0
        elif reward < -1.0:
            reward = -1.0
        print reward

        if alien_count < len(self.aliens):
            game_state = False
            reward = 1
            self.inactive = 240
            self.bullet_delay = 0

        else:
            game_state = self.stats.game_active

        if self.stats.game_active is False or self.inactive <= 0:
            self.stats.game_active = True
            reward = -1
            self.inactive = 240
            self.bullet_delay = 0
            self.scores.check_place(int(round(self.stats.score, -1)), name)
            gf.restart(self.ai_settings, self.screen, self.sounds, self.stats, self.sb,
                      self.ship, self.aliens, self.ufo, self.bullets, self.barriers, self.alien_bullets, self.smokes)

        image_data = None
        if inputs is not None:
            if len(inputs) == 3:
                img = self.screen
                image_data = pygame.surfarray.array3d(img)

        clock.tick(self.ai_settings.fps)
#        self.inactive += reward
        return reward, image_data, game_state
示例#10
0
def run_game():
    pygame.init()

    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))

    pygame.display.set_caption("Alien Invasion!")

    # Make the play button and high scores button
    play_button = Button(ai_settings, screen, "Play!")
    high_scores_button = HighScoresButton(ai_settings, screen, "High Scores")

    # Create an instance to store game statistics and create a scoreboard
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    # Make a ship, a group of bullets, and a group of aliens, a group of barriers, and a UFO
    ship = Ship(ai_settings, screen)
    bullets = Group()
    aliens = Group()
    barrier = Barrier(ai_settings, screen)
    ufo = UFO(ai_settings, screen)
    hs_init = open("high_scores.txt", "r+")
    stats.high_score = int(hs_init.readline())
    stats.high_score_2 = int(hs_init.readline())
    stats.high_score_3 = int(hs_init.readline())
    hs_init.close()

    # Make the start screen
    start_screen = StartScreen(
        ai_settings, screen, aliens, "Alien Invasion!", "= 50", "= 100",
        "= 150", "= 300",
        "Gabriel Magallanes | For CPSC 386 (Video Game Design) | Cal State Fullerton | 2019"
    )

    # Make the high score window
    high_score_window = HighScoreWindow(ai_settings, screen, stats)

    # Create the fleet of aliens
    gf.create_fleet(ai_settings, screen, ship, aliens)

    # Create a way to keep track of time (for the ufo spawn)
    time_elapsed = 0
    clock = pygame.time.Clock()

    # Start the main loop for the game
    while True:

        gf.check_events(ai_settings, screen, stats, sb, play_button, ship,
                        aliens, bullets, high_scores_button)

        if stats.game_active:
            ship.update()
            gf.update_ufo(ai_settings, screen, ufo)
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
                              bullets, high_score_window)
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
                             bullets, high_score_window)

        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
                         start_screen, play_button, ufo, barrier,
                         high_scores_button)
示例#11
0
def run_game():
    pygame.init()
    clock = pygame.time.Clock()

    highscores = HighScore()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")
    sounds = Sound()

    play_button = Button(screen, pygame.image.load('images/play_btn.png'), 850,
                         400)
    high_score_button = Button(screen,
                               pygame.image.load('images/high_score_btn.png'),
                               850, 600)
    menu_bg = Button(screen, pygame.image.load('images/menu.png'),
                     ai_settings.screen_width / 2,
                     ai_settings.screen_height / 2)
    stats = GameStats(ai_settings, highscores)
    sb = Scoreboard(ai_settings, screen, sounds, stats)

    ship = Ship(ai_settings, screen, sounds)
    bullets = Group()
    alien_bullets = Group()
    aliens = Group()
    ufo = UFO(ai_settings, screen, sounds)
    barriers = Group()
    smokes = Group()

    gf.create_fleet(ai_settings, screen, sounds, aliens)
    gf.create_barriers(ai_settings, screen, barriers)

    # timers used for animation and event checking
    alien_timer = Timer(ai_settings.alien_frame_factor)
    smoke_timer = Timer(8)
    ship_timer = Timer(4)
    ufo_timer = Timer(ai_settings.alien_frame_factor * 5)

    while True:
        clock.tick(60)
        gf.check_events(ai_settings, screen, sounds, stats, sb, highscores,
                        play_button, high_score_button, ship, aliens, bullets,
                        barriers, alien_bullets, smokes)

        if stats.game_active:
            gf.update_timers(alien_timer, ufo_timer, ship_timer, smoke_timer)
            gf.update_ship(stats, sb, highscores, ship, aliens, ufo, bullets,
                           alien_bullets, ship_timer, alien_timer)
            if not ship.hit:
                gf.update_bullets(ai_settings, screen, sounds, stats, sb, ship,
                                  aliens, ufo, bullets, barriers,
                                  alien_bullets, smokes, alien_timer,
                                  ufo_timer, smoke_timer)
                gf.update_aliens(ai_settings, screen, sounds, ship, aliens,
                                 barriers, alien_bullets, alien_timer)
                gf.update_ufo(ufo, ufo_timer)
                gf.update_smokes(smokes, smoke_timer)

        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, ufo,
                         bullets, menu_bg, play_button, high_score_button,
                         barriers, alien_bullets, smokes)
def run_game():
    # Initializes background setting needed to run properly
    pygame.init()

    # Initializes settings
    ai_settings = Settings()

    # Creates a display window where all of the game's graphic elements are drawn
    # The numbers represent the dimensions of the window
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")

    # Delay time
    delay = 0
    timer = random.randint(400, 1001)

    # Create an instance to store game statistics amd create a scoreboard
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    # Makes a ship, group of bullets, alien bullets, group of aliens, and ufos
    ship = Ship(ai_settings, screen, stats)
    bunkers = Group()
    bullets = Group()
    aliens_1 = Group()
    aliens_2 = Group()
    aliens_3 = Group()
    alien_bullets = Group()
    ufo = Group()

    # Make the play button that also contains the startup screen
    play_button = Button(screen, "Play", ai_settings, alien_bullets, stats)
    score_button = ScoreButton(screen, "High Scores", ai_settings)
    back_button = ScoreButton(screen, "Back (B)", ai_settings)

    # Starts the main loop for the game
    while True:
        # Checks for any type of event
        gf.check_events(ai_settings, screen, stats, sb, play_button, score_button, ship, aliens_1,
                        aliens_2, aliens_3, ufo, bullets, alien_bullets, bunkers)

        # Creates a new UFO at a random interval
        # Delay to prevent too many from spawning at once
        if delay == timer:
            gf.create_ufo(ai_settings, screen, ufo, alien_bullets, stats)
            # plays ufo sound
            ai_settings.ufo_sound.play()
            delay = 0
            timer = random.randint(700, 1001)
        else:
            delay += 1

        # Runs the game is active
        if stats.game_active:
            ship.update()

            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens_1, aliens_2, aliens_3,
                              ufo, bullets, alien_bullets, bunkers)
            gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens_1, aliens_2, aliens_3,
                             ufo, bullets, alien_bullets, bunkers)
            gf.update_ufo(ai_settings, screen, stats, sb, ship, aliens_1, aliens_2, aliens_3,
                          ufo, bullets, alien_bullets, bunkers)
        # Manages the screen updates
        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens_1, aliens_2, aliens_3, ufo,
                         bullets, alien_bullets, bunkers, play_button, score_button, back_button)