def __init__(self):
"""Initialize the game, and create game resources."""
pygame.init()
self.settings = Settings()
self.screen = pygame.display.set_mode(
(self.settings.screen_width, self.settings.screen_height))
self.settings.screen_width = self.screen.get_rect().width
self.settings.screen_height = self.screen.get_rect().height
pygame.display.set_caption("Alien Invasion")
self.bg_image = pygame.transform.scale(
self.settings.image_bg,
(self.settings.screen_width, self.settings.screen_height))
# Create an instance to store game statistics and create a score board
self.stats = GameStatus(self)
self.sb = Scoreboard(self)
# Create a group of ship, bullets, and aliens
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.aliens = pygame.sprite.Group()
self._create_fleet()
# Make the Play button.
self.play_button = Button(self, "PLAY NOW")
def run_game():
settings = Settings()
pygame.init() # 初始化游戏并创建一个屏幕对象
screen = pygame.display.set_mode((settings.screen_width, settings.screen_height))
pygame.display.set_caption("Afra55 game")
stats = GameStatus(settings)
play_button = Button(settings, screen, 'Play')
sb = Scoreboard(settings, screen, stats)
ship = Ship(settings, screen)
bullets = Group()
aliens = Group()
gf.create_fleet(settings, screen, ship, aliens)
while True:
gf.check_events(settings, screen, ship, aliens, bullets, stats, play_button, sb)
if stats.game_active:
ship.update()
gf.update_bullets(bullets, aliens, settings, stats, screen, ship, sb)
gf.update_aliens(settings, aliens, ship, stats, screen, bullets, sb)
gf.update_screen(settings, screen, ship, aliens, bullets, stats, play_button, sb)
def run_game():
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode(
(ai_settings.screen_width, ai_settings.screen_height))
stats = GameStatus(ai_settings)
sb = Scoreboard(ai_settings, screen, stats)
ship = Ship(ai_settings, screen)
bullets = Group()
aliens = Group()
gf.create_fleet(ai_settings, screen, ship, aliens)
pygame.display.set_caption('Alien Invasion')
play_button = Button(ai_settings, screen, "Go")
life_rewards = Group()
while True:
gf.check_event(ai_settings, screen, stats, play_button, ship, aliens,
bullets)
if stats.game_active:
ship.update()
bullets.update()
gf.check_rewards(ship, life_rewards, stats)
gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens,
bullets, life_rewards)
gf.update_aliens(ai_settings, stats, screen, ship, aliens, bullets)
gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
play_button, life_rewards)
def run_game():
"""初始化游戏并创建屏幕对象"""
pygame.init()
ai_setting = settings.Settings()
screen = pygame.display.set_mode((ai_setting.screen_width, ai_setting.screen_height))
pygame.display.set_caption("Alien Invasion")
play_button = Button(ai_setting, screen, "Play")
# 创建一艘飞船
ship = Ship(ai_setting, screen)
# 创建一个用于存储子弹的编组
bullets = Group()
# 创建外星人编组
aliens = Group()
game_functions.create_fleet(ai_setting, screen, aliens, ship)
# 创建游戏数据
game_status = GameStatus(ai_setting)
scoreboard = Scoreboard(ai_setting, screen, game_status)
# 游戏主循环
while True:
game_functions.check_events(ai_setting, screen, aliens, ship, bullets, game_status, play_button, scoreboard)
if game_status.game_active:
ship.update()
game_functions.update_bullet(aliens, bullets, ai_setting, screen, ship, game_status, scoreboard)
game_functions.update_aliens(aliens, ai_setting, ship, game_status, screen, bullets, scoreboard)
game_functions.update_screen(ai_setting, screen, ship, aliens, bullets, game_status, play_button, scoreboard)
def run_game():
pygame.init()
ai_setting = Setting()
screen = pygame.display.set_mode(
(ai_setting.screen_width, ai_setting.screen_height))
pygame.display.set_caption(ai_setting.name)
ship = Ship(ai_setting, screen)
bullets = Group()
aliens = Group()
gf.creat_fleet(ai_setting, screen, aliens, ship)
stats = GameStatus(ai_setting)
play_button = Button(ai_setting, screen, "Play")
sb = Scoreboard(ai_setting, stats, screen)
while True:
gf.check_events(ai_setting, stats, screen, aliens, ship, bullets,
play_button, sb)
if stats.game_active:
ship.update()
gf.update_buttlets(ai_setting, screen, ship, aliens, bullets,
stats, sb)
gf.update_alients(ai_setting, screen, ship, aliens, stats, bullets,
sb)
gf.update_screen(ai_setting, screen, ship, bullets, aliens, stats,
play_button, sb)
def run_game():
# 初始化pygame游戏、设置和屏幕对象
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode(
(ai_settings.screen_width, ai_settings.screen_height))
pygame.display.set_caption(ai_settings.name)
#创建Play按钮
play_button = Button(ai_settings, screen, "Play")
#创建一个用于存储游戏统计信息的实例
stats = GameStatus(ai_settings)
#创建记分牌
sb = Scoreboard(ai_settings, screen, stats)
#创建一艘飞船
ship = Ship(ai_settings, screen)
#创建子弹编组
bullets = Group()
#创建外星人编组
aliens = Group()
#创建外星人群
gf.create_fleet(ai_settings, screen, ship, aliens)
# 开始游戏的主循环
while True:
#监视键盘和鼠标事件
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)
gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens,
bullets)
#print("The number of bullets is :%d " %len(bullets))
#每次循环时都重绘屏幕与物体
gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets,
play_button)
#添加等待时间
time.sleep(0.03)
def run_game():
# Intiailzie 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 a ship
ship = Ship(ai_settings, screen)
# Make a group to store bullets in.
bullets = Group()
# Make a group of aliens.
aliens = Group()
# Create a fleet of aliens
gf.create_fleet(ai_settings, screen, ship, aliens)
# Make a play button.
play_button = Button(screen)
# Create an instance to store game statistics and create a scoreboard.
stats = GameStatus(ai_settings)
sb = Scoreboard(ai_settings, screen, stats)
# Start the main loop for the game.
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)
gf.update_aliens(ai_settings, screen, stats, sb, ship, aliens, bullets)
gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets, play_button)
class AlienInvasion:
"""Overall class to manage game assets and behavior."""
def __init__(self):
"""Initialize the game, and create game resources."""
pygame.init()
self.settings = Settings()
self.screen = pygame.display.set_mode(
(self.settings.screen_width, self.settings.screen_height))
self.settings.screen_width = self.screen.get_rect().width
self.settings.screen_height = self.screen.get_rect().height
pygame.display.set_caption("Alien Invasion")
self.bg_image = pygame.transform.scale(
self.settings.image_bg,
(self.settings.screen_width, self.settings.screen_height))
# Create an instance to store game statistics and create a score board
self.stats = GameStatus(self)
self.sb = Scoreboard(self)
# Create a group of ship, bullets, and aliens
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.aliens = pygame.sprite.Group()
self._create_fleet()
# Make the Play button.
self.play_button = Button(self, "PLAY NOW")
def run_game(self):
"""Start the main loop for the game."""
while True:
self._check_events()
if self.stats.game_active:
self.ship.update()
self._update_bullets()
self._update_aliens()
self._update_screen()
def _check_events(self):
"""Respond to keypresses and mouse events."""
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
self._check_keydown_events(event)
elif event.type == pygame.KEYUP:
self._check_keyup_events(event)
elif event.type == pygame.MOUSEBUTTONDOWN:
mouse_pos = pygame.mouse.get_pos()
self._check_play_button(mouse_pos)
def _check_play_button(self, mouse_pos):
"""Start a new game when the player clicks play"""
button_clicked = self.play_button.rect.collidepoint(mouse_pos)
if button_clicked and not self.stats.game_active:
# Reset the game statistics
self.stats.reset_stats()
self.stats.game_active = True
# Reset the scorebaord images.
self.sb.prep_score()
self.sb.prep_high_score()
self.sb.prep_level()
self.sb.prep_ship()
# Empty the list of aliens and bullets.
self.aliens.empty()
self.bullets.empty()
# Create a new fleet and center the ship.
self._create_fleet()
self.ship.center_ship()
# Reset the game settings.
self.settings.initialize_dynamic_settings()
# Hide mouse cursor.
pygame.mouse.set_visible(False)
def _check_keydown_events(self, event):
"""Respond to keypresses."""
if event.key == pygame.K_RIGHT:
self.ship.moving_right = True
elif event.key == pygame.K_LEFT:
self.ship.moving_left = True
elif event.key == pygame.K_q:
sys.exit()
elif event.key == pygame.K_SPACE:
self._fire_bullet()
def _check_keyup_events(self, event):
"""Respond to key releases."""
if event.key == pygame.K_RIGHT:
self.ship.moving_right = False
elif event.key == pygame.K_LEFT:
self.ship.moving_left = False
def _fire_bullet(self):
"""Create a new bullet and add it to the bullets group."""
if len(self.bullets) < self.settings.bullets_allowed:
new_bullet = Bullet(self)
self.bullets.add(new_bullet)
def _update_bullets(self):
"""Update position of bullets and get rid of old bullets."""
# Update bullet positions.
self.bullets.update()
# Get rid of bullets that have disappeared.
for bullet in self.bullets.copy():
if bullet.rect.bottom <= 0:
self.bullets.remove(bullet)
self._check_bullet_alien_collisions()
def _check_bullet_alien_collisions(self):
"""Respond to bullet-alien collisions."""
# Remove any bullets and aliens that have collided.
collisions = pygame.sprite.groupcollide(self.bullets, self.aliens,
True, True)
if collisions:
for aliens in collisions.values():
self.stats.score += self.settings.alien_point * len(
self.aliens)
self.sb.prep_score()
self.check_high_score()
if not self.aliens:
# Destroy existing bullets and create new fleet.
self.bullets.empty()
self._create_fleet()
self.settings.increase_speed()
# increase level.
self.stats.level += 1
self.sb.prep_level()
def check_high_score(self):
"""Check to see if there's a new high score."""
if self.stats.score > self.stats.high_score:
self.stats.high_score = self.stats.score
self.sb.prep_high_score()
def _update_aliens(self):
"""
Check if the fleet is at an edge,
then update the positions of all aliens in the fleet.
"""
self._check_fleet_edges()
self.aliens.update()
# Look for alien-ship collisions.
if pygame.sprite.spritecollideany(self.ship, self.aliens):
self._ship_hit()
# Look for aliens hitting the bottom of the screen.
self._check_aliens_bottom()
def _check_aliens_bottom(self):
"""Check if any aliens have reached the bottom of the screen."""
screen_rect = self.screen.get_rect()
for alien in self.aliens.sprites():
if alien.rect.bottom >= screen_rect.bottom:
# Treat this the same as if the ship got hit.
self._ship_hit()
break
def _ship_hit(self):
"""Respond to the ship being hit by an alien."""
if self.stats.ships_left > 0:
# Decrement ships_left.
self.stats.ships_left -= 1
# Get rid of any remaining aliens and bullets.
self.aliens.empty()
self.bullets.empty()
# Create a new fleet and center the ship.
self._create_fleet()
self.ship.center_ship()
# Pause.
sleep(0.5)
else:
self.stats.game_active = False
pygame.mouse.set_visible(True)
def _create_fleet(self):
"""Create the fleet of aliens."""
# Create an alien and find the number of aliens in a row.
# Spacing between each alien is equal to one alien width.
alien = Alien(self)
alien_width, alien_height = alien.rect.size
available_space_x = self.settings.screen_width - (2 * alien_width)
number_aliens_x = available_space_x // (2 * alien_width)
# Determine the number of rows of aliens that fit on the screen.
ship_height = self.ship.rect.height
available_space_y = (self.settings.screen_height - (3 * alien_height) -
ship_height)
number_rows = available_space_y // (2 * alien_height)
# Create the full fleet of aliens.
for row_number in range(number_rows):
for alien_number in range(number_aliens_x):
self._create_alien(alien_number, row_number)
def _create_alien(self, alien_number, row_number):
"""Create an alien and place it in the row."""
alien = Alien(self)
alien_width, alien_height = alien.rect.size
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
self.aliens.add(alien)
def _check_fleet_edges(self):
"""Respond appropriately if any aliens have reached an edge."""
for alien in self.aliens.sprites():
if alien.check_edges():
self._change_fleet_direction()
break
def _change_fleet_direction(self):
"""Drop the entire fleet and change the fleet's direction."""
for alien in self.aliens.sprites():
alien.rect.y += self.settings.fleet_drop_speed
self.settings.fleet_direction *= -1
def _update_screen(self):
"""Update images on the screen, and flip to the new screen."""
self.screen.blit(self.bg_image, (0, 0))
self.ship.blitme()
for bullet in self.bullets.sprites():
bullet.draw_bullet()
self.aliens.draw(self.screen)
# Draw score information.
self.sb.show_score()
# Draw the play button if the game is inactive.
if not self.stats.game_active:
self.play_button.draw_button()
pygame.display.flip()