def run_game():
# init game and create 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")
# create a new ship
ship = Ship(ai_settings, screen)
aliens = Group()
# create alien's group
gf.create_fleet(ai_settings, screen, ship, aliens)
# create a group to store the bullet
bullets = Group()
# start game's main circulation
while True:
# listen mouse and keyboard
gf.check_events(ai_settings, screen, ship, bullets)
ship.update()
gf.update_bullets(aliens, bullets)
gf.update_aliens(ai_settings, aliens)
# redraw screen every circulation
# let last screen be visible
gf.update_screen(ai_settings, screen, ship, aliens, bullets)
def __init__(self):
""" Initialize the game and creates game resources"""
pygame.init()
self.settings = Settings()
# for windowed mode
# self.screen = pygame.display.set_mode((self.settings.screen_width, self.settings.screen_height))
# for the fullscreen mode
self.screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
self.settings.screen_width = self.screen.get_rect().width
self.settings.screen_height = self.screen.get_rect().height
pygame.display.set_caption("Alien Invasion")
# Create an instance to store game statistics and create a scoreboard
self.stats = GameStats(self)
self.sb = ScoreBoard(self)
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.stars = pygame.sprite.Group()
self.aliens = pygame.sprite.Group()
self._populate_sky()
self._create_fleet()
self.play_button = Button(self, 'Play')
def run_game():
# Inicializa o jogo e cria um objeto para a tela
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode((
ai_settings.screen_width,
ai_settings.screen_height,
))
pygame.display.set_caption('Alien Invasion')
# Cria o botão Play
play_button = Button(ai_settings, screen, 'Play')
# Cria uma instância para armazenar dados estatísticos do jogo
stats = GameStats(ai_settings)
sb = Scoreboard(ai_settings, screen, stats)
# Cria uma espaçonave, um grupo de projéteis e um grupo de alienígenas
ship = Ship(ai_settings, screen)
bullets = Group()
aliens = Group()
# Cria a frota de alienígenas
gf.create_fleet(ai_settings, screen, ship, aliens)
# Inicia o laço principal do jogo
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,
)
def _clear_board(self):
self.attacked = CoordinateSet()
self.hit = CoordinateSet()
self.miss = CoordinateSet()
self.occupied = CoordinateSet()
self.ships = {
Ship('Carrier'): CoordinateSet(),
Ship('Battleship'): CoordinateSet(),
Ship('Destroyer'): CoordinateSet(),
Ship('Submarine'): CoordinateSet(),
Ship('Patrol Boat'): CoordinateSet()
}
self.symbols = [EMPTY_COORDINATE for _ in range(100)]
self.sunk = []
def smallest_unsunk_ship(self) -> Ship:
"""Return the smallest unsunk ship."""
smallest = Ship('Carrier')
for ship, mask in self.ships.items():
if len(ship) != len(mask) and len(ship) < len(smallest):
smallest = ship
return smallest
def add_ship(self, ship_obj: Ship, bow: str, direction: str) -> bool:
"""Add CoordinateSet to board to represent a Ship.
Params
------
ship_obj : Ship
The ship to be added to the board.
bow : Coordinate
The coordinate of the bow of ship.
direction : str
The direction from bow to tail of ship.
Returns
-------
bool
True if ship added successfully.
"""
ship_coords = ship_coordinates(bow, len(ship_obj), direction)
if ship_coords and ship_coords.isdisjoint(self.occupied):
self.ships[ship_obj] = ship_coords
self.occupied.update(ship_coords)
for _c in ship_coords:
self.symbols[_c] = ship_obj.symbol()
return True
return False
def prep_ships(self):
self.ships = Group()
for ship_number in range(self.stats.ships_left):
ship = Ship(self.cfg, self.screen)
ship.rect.x = 10 + ship_number * ship.rect.width
ship.rect.y = 10
self.ships.add(ship)
def prep_ships(self):
""" Show how many ships are left """
self.ships = pygame.sprite.Group()
for ship_number in range(self.stats.ships_left):
ship = Ship(self.ai_game)
ship.rect.x = 10 + ship_number * ship.rect.width
ship.rect.y = 10
self.ships.add(ship)
def prep_ships(self):
"""Mostra quantas espaçonaves restam."""
self.ships = Group()
for ship_number in range(self.stats.ships_left):
ship = Ship(self.ai_settings, self.screen)
ship.rect.x = 10 + ship_number * ship.rect.width
ship.rect.y = 10
self.ships.add(ship)
def __init__(self):
pygame.init()
self.settings = Settings()
self.screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
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.stats = GameStats(self)
self.sb = Scoreboard(self)
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.aliens = pygame.sprite.Group()
self._create_fleet()
self.play_button = Button(self, 'Play')
def run_game():
# init
pygame.init()
# config
cfg = Settings()
screen = pygame.display.set_mode((cfg.screen_width, cfg.screen_height))
pygame.display.set_caption("Alien Invasion")
# 创建飞船
ship = Ship(cfg, screen)
# 创建子弹
bullets = Group()
# 创建外星人
# alien = Alien(cfg, screen)
aliens = Group()
game_funcs.create_fleet(cfg, screen, aliens, ship)
# 游戏统计信息
stats = GameStats(cfg)
sb = Scoreboard(cfg, screen, stats)
# 按钮控制
play_button = Button(cfg, screen, "Play")
over_all = OverAll(cfg, screen, ship, bullets, aliens, stats, sb)
# usage
print("started game. press keyboard to start playing.")
while True:
game_funcs.check_events(cfg, screen, ship, bullets, aliens, stats,
play_button, sb)
if stats.game_active:
ship.update()
game_funcs.update_bullets(cfg, screen, ship, bullets, aliens,
stats, sb)
game_funcs.update_aliens(cfg, screen, ship, bullets, aliens, stats,
sb)
game_funcs.update_screen(cfg, screen, ship, bullets, aliens, stats,
play_button, sb)
def run_game():
# Initialize game and create a screen object.
pygame.init()
settings = Settings()
screen = pygame.display.set_mode(
(settings.screen_width, settings.screen_heigth))
pygame.display.set_caption("Alien Invasion 3000")
ship = Ship(screen)
# Start the main loop for the game.
while True:
gf.check_events(ship)
gf.update_screen(settings, screen, ship)
def run_game():
"""运行游戏"""
setting = Settings()
screen = pygame.display.set_mode([setting.screen_width, setting.screen_height])
# 飞船
ship = Ship(setting, screen)
# 子弹
bullets = Group()
# 外星人
aliens = Group()
gf.create_fleet(setting, screen, ship, aliens)
# title
pygame.display.set_caption("Alien Invasion")
bg_color = (255, 255, 255)
while True:
gf.check_event(setting, screen, ship, bullets)
ship.update()
gf.update_aliens(setting, aliens)
gf.update_bullets(bullets)
gf.update_screen(setting, screen, ship, bullets, aliens)
def run_game():
# 初始化游戏并创建一个屏幕对象
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode(
(ai_settings.screen_width, ai_settings.screen_height))
# screen = pygame.display.set_mode((1200, 800))
pygame.display.set_caption("Alian Invasion")
# 创建Play按钮
play_button = Button(ai_settings, screen, "Play")
# 设置背景颜色
bg_color = (85, 204, 220)
# 创建一艘飞船
ship = Ship(ai_settings, screen)
# 创建一个用于存储子弹的编组
bullets = Group()
# 创建一艘飞船、一个子弹编组和一个外星人编组
aliens = Group()
# 创建一个外星人
alien = Alien(ai_settings, screen)
# 开始游戏的主循环
while True:
gf.check_events(ai_settings, screen, play_button, ship, bullets)
ship.update()
# bullets.update()
# 删除已消失的子弹
# for bullet in bullets.copy():
# if bullet.rect.bottom <= 0:
# bullet.remove(bullet)
print(len(bullets))
gf.update_bullets(bullets)
gf.update_screen(ai_settings, screen, ship, alien, bullets,
play_button)
gf.update_screen(ai_settings, screen, ship, aliens, bullets)
# 创建外星人群
gf.create_fleet(ai_settings, screen, ship, aliens)
# 监视键盘和鼠标事件
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exeit()
# 每次循环时都重绘屏幕
screen.fill(ai_settings.bg_color)
# screen.fill(bg_color)
ship.blitme()
# 让最终绘制的屏幕可见
pygame.display.flip()
def ship_type_at(self, coordinate: Coordinate) -> Optional[Ship]:
"""Determine which type of ship occupies a provided coordinate.
PARAMS
------
coordinate : Coordinate
The coordinate being checked for ship occupancy.
RETURNS
-------
<class `gamebox.ship.Ship`> or None
Ship object if one is present, else None.
"""
coordinate = parse_coordinate(coordinate)
return Ship.from_symbol(self.symbols[coordinate]) or None
def setup_ship(self, grid):
'''
Create the ship surface
'''
# create ship surface
form_ship = self.get_component('f ship')
# if not ship set -> put question mark image
if not np.any(grid):
form_ship.set_surface(img_question)
else:
ship = Ship.from_grid(grid, 0)
ship.compile()
form_ship.set_surface(ship.get_surface('original'))
def create_ship(self, grid):
'''
Create the Ship object given its grid.
Set its starting position & color according to its team.
'''
self.ship = Ship.from_grid(grid, self.team)
self.ship.compile()
# set starting position & color
if self.team == 1:
self.ship.set_pos(Spec.POS_P1)
self.ship.set_color(Spec.COLOR_P1)
else:
self.ship.set_pos(Spec.POS_P2)
self.ship.set_color(Spec.COLOR_P2)
self.ship.orien = np.pi
def _ship_update(self, ship_info):
if self.player_ship and ship_info.player_id == context.Player.room_player_id:
return
for ship in self.ships:
if ship.id_ == ship_info.id:
ship.spos = (ship_info.x, ship_info.y)
# ship.player_id = ship_info.player_id
ship.angle = ship_info.angle
ship.thruttle = ship_info.thruttle
ship.reverse_thruttle = ship_info.reverse_thruttle
ship.life = ship.life
return
new_ship = Ship()
new_ship.spos = (ship_info.x, ship_info.y)
new_ship.player_id = ship_info.player_id
new_ship.angle = ship_info.angle
new_ship.thruttle = ship_info.thruttle
new_ship.reverse_thruttle = ship_info.reverse_thruttle
new_ship.life = ship.life
if new_ship.player_id == context.Player.room_player_id:
self.player_ship = new_ship
self.add_ship(new_ship)
class AlienInvasion:
"""Класс для управления ресурсами и поведением игры."""
def __init__(self):
pygame.init()
self.settings = Settings()
self.screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
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.stats = GameStats(self)
self.sb = Scoreboard(self)
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.aliens = pygame.sprite.Group()
self._create_fleet()
self.play_button = Button(self, 'Play')
def run_game(self):
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):
for event in pygame.event.get():
if event.type == pygame.QUIT:
self._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):
button_clicked = self.play_button.rect.collidepoint(mouse_pos)
if button_clicked and not self.stats.game_active:
self._start_game()
def _start_game(self):
self.settings.initialize_dynamic_settings()
self.stats.reset_stats()
self.stats.game_active = True
self.sb.prep_images()
self.aliens.empty()
self.bullets.empty()
self._create_fleet()
self.ship.center_ship()
pygame.mouse.set_visible(False)
def _check_keydown_events(self, event):
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 in {pygame.K_q, pygame.K_ESCAPE}:
self._exit()
elif event.key == pygame.K_SPACE:
self._fire_bullet()
elif event.key == pygame.K_RETURN: # Enter key
self._start_game()
def _check_keyup_events(self, event):
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):
if len(self.bullets) < self.settings.bullets_allowed:
new_bullet = Bullet(self)
self.bullets.add(new_bullet)
def _update_bullets(self):
self.bullets.update()
for bullet in self.bullets.copy():
if bullet.rect.bottom <= 0:
self.bullets.remove(bullet)
self._check_bullet_alien_collision()
def _check_bullet_alien_collision(self):
collisions = pygame.sprite.groupcollide(self.bullets, self.aliens,
True, True)
if collisions:
for aliens in collisions.values():
self.stats.score += self.settings.alien_points * len(aliens)
self.sb.prep_score()
self.sb.check_high_score()
if not self.aliens:
self._start_new_level()
def _start_new_level(self):
self.bullets.empty()
self._create_fleet()
self.settings.increase_speed()
self.stats.level += 1
self.sb.prep_level()
def _update_aliens(self):
self._check_fleet_edges()
self.aliens.update()
if pygame.sprite.spritecollideany(self.ship, self.aliens):
self._ship_hit()
self._check_aliens_bottom()
def _check_aliens_bottom(self):
screen_rect = self.screen.get_rect()
for alien in self.aliens.sprites():
if alien.rect.bottom >= screen_rect.bottom:
self._ship_hit()
break
def _ship_hit(self):
if self.stats.ships_left > 0:
self.stats.ships_left -= 1 # 4 attempts. if before the condition, then 3 attempts
self.sb.prep_ships()
self.aliens.empty()
self.bullets.empty()
self._create_fleet()
self.ship.center_ship()
sleep(0.5)
else:
self.stats.game_active = False
pygame.mouse.set_visible(True)
def _create_fleet(self):
alien = Alien(self)
alien_width, alien_height = alien.rect.size
available_space_x = self.settings.screen_width - (alien_width * 2)
number_aliens_x = available_space_x // (2 * alien_width)
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)
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):
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_height + 2 * alien_height * row_number
self.aliens.add(alien)
def _check_fleet_edges(self):
for alien in self.aliens.sprites():
if alien.check_edges():
self._change_fleet_direction()
break
def _change_fleet_direction(self):
for alien in self.aliens.sprites():
alien.rect.y += self.settings.fleet_drop_speed
self.settings.fleet_direction *= -1
def _update_screen(self):
self.screen.fill(self.settings.bg_color)
self.ship.blitme()
for bullet in self.bullets.sprites():
bullet.draw_bullet()
self.aliens.draw(self.screen)
self.sb.show_score()
if not self.stats.game_active:
self.play_button.draw_button()
pygame.display.flip()
def _exit(self):
with open('record.txt', 'w') as record:
record.write(str(self.stats.high_score))
sys.exit()
def __init__(self, *args, **kwargs):
super(Game, self).__init__(*args, **kwargs)
#create a new window, make it the full size of our current display
galaxy = milkyway.create()
galaxy_window = Map2DWindow(map2d=galaxy.map, rect=((0, 0), self.display.resolution), game=self)
self.windows.add_window(galaxy_window)
self.register_update_callback(galaxy.update)
#self.register_pre_render_callback(galaxy_window.draw_grid)
#add a ship and center the map on it
player = Ship()
galaxy.map.add_object(player, (1 * AU, 1 * AU))
self.register_update_callback(player.update)
#galaxy_window.lock_center(player)
galaxy_window.scale = 0.000001
galaxy_window.index_cycle = galaxy.index.values()
galaxy_window.index_pointer = 0
galaxy_window.lock_center(galaxy_window.index_cycle[galaxy_window.index_pointer])
#TODO: figure out a better way to pass context items like player or galaxy_window to commands
#so that they have the same method signature
self.keyboard.bindings = {
K_w: {
KEYDOWN: lambda: commands.player_main_engine_on(player),
KEYUP: lambda: commands.player_main_engine_off(player)
},
K_s: {
KEYDOWN: lambda: commands.player_retro_engine_on(player),
KEYUP: lambda: commands.player_retro_engine_off(player)
},
K_a: {
KEYDOWN: lambda: commands.player_left_engine_on(player),
KEYUP: lambda: commands.player_left_engine_off(player)
},
K_d: {
KEYDOWN: lambda: commands.player_right_engine_on(player),
KEYUP: lambda: commands.player_right_engine_off(player)
},
K_SPACE: {
KEYDOWN: lambda: commands.toggle_player_view_lock(player, galaxy_window)
},
K_ESCAPE: {
KEYDOWN: commands.quit
},
K_RETURN: {
KEYDOWN: lambda: commands.cycle_galaxy_index(galaxy_window)
}
}
self.mouse.bindings = {
MOUSEMOTION: lambda event: commands.set_player_heading_from_mouse(event, galaxy_window, player),
MOUSEBUTTONDOWN: {
1: lambda event: commands.set_map_center_from_mouse_click(event, galaxy_window),
4: lambda event: commands.zoom_map_in(event, galaxy_window, 1.1),
5: lambda event: commands.zoom_map_out(event, galaxy_window, 1.1)
}
}
widgets = []
widgets.append(TextWidget(binding=lambda: 'view: {view}'.format(view=galaxy_window.get_viewport_range()), font_size=20, color=(255, 100, 100)))
widgets.append(TextWidget(binding=lambda: 'pos: {x}, {y}'.format(x=int(player.get_position()[0]), y=int(player.get_position()[1])), font_size=20, color=(255, 50, 150)))
widgets.append(TextWidget(binding=lambda: 'accell: {accell}'.format(accell=player.acceleration), font_size=20, color=(255, 50, 150)))
widgets.append(TextWidget(binding=lambda: 'vector: {vector}'.format(vector=player.vector), font_size=20, color=(255, 50, 150)))
widgets.append(TextWidget(binding=lambda: 'heading: {heading}'.format(heading=player.heading), font_size=20, color=(255, 150, 255)))
#widgets.append(TextWidget(binding=lambda: 'slice: {slice}'.format(slice=galaxy_window._slice_rect), font_size=20, color=(255, 100, 255)))
#widgets.append(TextWidget(binding=lambda: 'c: {center}'.format(center=galaxy_window.center), font_size=20, color=(255, 100, 100)))
#widgets.append(TextWidget(binding=lambda: 'pv: {vector}'.format(vector=galaxy_window.pan_vector), font_size=20, color=(255, 100, 255)))
widgets.append(TextWidget(binding=lambda: '{fps} fps'.format(fps=self.clock.fps), font_size=20, color=(100, 255, 100)))
widgets.append(TextWidget(binding=lambda: '{ups} ups'.format(ups=self.clock.ups), font_size=20, color=(100, 100, 255)))
widget_x = self.display.resolution[0]
widget_y = self.display.resolution[1]
widget_spacing = 15
for i in range(len(widgets)):
self.widgets.add_widget(widgets[i], (widget_x, widget_y - (widget_spacing * i)))
# Define some colors
black = ( 0, 0, 0)
white = ( 255, 255, 255)
green = ( 0, 255, 0)
red = ( 255, 0, 0)
pygame.init()
# Set the width and height of the screen [width,height]
size=[700,500]
screen=pygame.display.set_mode(size)
ship = Ship(screen)
pygame.display.set_caption("SeaFarers")
#Loop until the user clicks the close button.
done=False
# Used to manage how fast the screen updates
clock=pygame.time.Clock()
# -------- Main Program Loop -----------
while not done:
milliseconds = clock.tick(100) # milliseconds passed since last frame
seconds = milliseconds / 1000.0 # seconds passed since last frame (float)
import pygame
from game.ship import Ship
# Define some colors
black = (0, 0, 0)
white = (255, 255, 255)
green = (0, 255, 0)
red = (255, 0, 0)
pygame.init()
# Set the width and height of the screen [width,height]
size = [700, 500]
screen = pygame.display.set_mode(size)
ship = Ship(screen)
pygame.display.set_caption("SeaFarers")
#Loop until the user clicks the close button.
done = False
# Used to manage how fast the screen updates
clock = pygame.time.Clock()
# -------- Main Program Loop -----------
while not done:
milliseconds = clock.tick(100) # milliseconds passed since last frame
seconds = milliseconds / 1000.0 # seconds passed since last frame (float)
# ALL EVENT PROCESSING SHOULD GO BELOW THIS COMMENT
class AlienInvasion:
""" Overall class to manage game assets and behavior """
def __init__(self):
""" Initialize the game and creates game resources"""
pygame.init()
self.settings = Settings()
# for windowed mode
# self.screen = pygame.display.set_mode((self.settings.screen_width, self.settings.screen_height))
# for the fullscreen mode
self.screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
self.settings.screen_width = self.screen.get_rect().width
self.settings.screen_height = self.screen.get_rect().height
pygame.display.set_caption("Alien Invasion")
# Create an instance to store game statistics and create a scoreboard
self.stats = GameStats(self)
self.sb = ScoreBoard(self)
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.stars = pygame.sprite.Group()
self.aliens = pygame.sprite.Group()
self._populate_sky()
self._create_fleet()
self.play_button = Button(self, 'Play')
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_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()
elif event.key == pygame.K_p:
self._start_game()
elif event.key == pygame.K_PAGEUP:
self.settings.manual_level += 1
self.stats.level = self.settings.manual_level
self.sb.prep_level()
elif event.key == pygame.K_PAGEDOWN:
self.settings.manual_level -= 1
if self.settings.manual_level < 1:
self.settings.manual_level = 1
self.stats.level = self.settings.manual_level
self.sb.prep_level()
elif event.key == pygame.K_r:
self._end_game()
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 _check_play_button(self, mouse_pos):
""" Start a new game if the player clicks Play """
button_clicked = self.play_button.rect.collidepoint(mouse_pos)
if button_clicked and not self.stats.game_active:
self._start_game()
def _check_bullet_alien_collisions(self):
""" Respond for bullet-alien collisions """
# Remove any bullet and alien 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_points * len(aliens)
self.sb.prep_score()
self.sb.check_high_score()
if not self.aliens:
self._start_new_level()
def _start_new_level(self):
""" Level up the game if all alien ships were destroyed """
# 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_fleet_edges(self):
""" Respond appropriately if any aliens have reached the edge """
for alien in self.aliens.sprites():
if alien.check_edges():
self._change_fleet_direction()
break
def _check_aliens_bottoms(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 it the same as if the ship got hit
self._ship_hit()
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 _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
# Double indent from left side of the screen for every even row
# indent_width = alien_width if row_number % 2 == 0 else 2 * alien_width
alien.x = alien_width + 2 * alien_width * alien_number
alien.rect.x = alien.x
alien.rect.y = alien_height + 2 * alien_height * row_number
self.aliens.add(alien)
def _create_fleet(self):
""" Create the fleet of aliens """
# Create and alien and finds a number of aliens in the row
# Spacing between each alien is equal to one alien width
alien = Alien(self)
alien_width, alien_height = alien.rect.size
ship_height = self.ship.rect.height
# Defying the number of alien to fill all available space in a row
available_space_in_row = self.settings.screen_width - 2 * alien_width
number_aliens_in_row = available_space_in_row // (2 * alien_width)
# Determine a number of rows of alien to fit the screen
available_space_for_rows = self.settings.screen_height - ship_height - (5 * alien_height)
number_of_rows = available_space_for_rows // (2 * alien_height)
# Creates the fleet of aliens
for row_number in range(number_of_rows):
for alien_number in range(number_aliens_in_row):
self._create_alien(alien_number, row_number)
def _end_game(self):
""" Set end game conditions """
self.stats.game_active = False
self.settings.manual_level = 1
self.sb.store_high_score()
pygame.mouse.set_visible(True)
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 _populate_sky(self):
""" Place stars on the sky """
for _ in range(self.settings.star_count):
star = Star(self)
star_width, star_height = star.rect.size
star.rect.x = randint(star_width, self.settings.screen_width - star_width)
star.rect.y = randint(star_height, self.settings.screen_height - star_height)
self.stars.add(star)
def _start_game(self):
""" Start the game if key pressed or mouse clicked """
# Reset the game stats
self.stats.reset_stats()
self.settings.initialize_dynamic_settings()
self.settings.set_start_speed()
self.sb.prep_images()
self.stats.game_active = True
# 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()
# Hide the mouse cursor
pygame.mouse.set_visible(False)
def _ship_hit(self):
""" Respond to the ship being hit by an alien """
if self.stats.ships_left > 0:
# Decrement ships left and update scoreboard
self.stats.ships_left -= 1
self.sb.prep_ships()
# Clear the screen from remaining aliens and bullets
self.bullets.empty()
self.aliens.empty()
# Create new fleet and center the ship.
self._create_fleet()
self.ship.center_ship()
# Pause
sleep(1)
else:
self._end_game()
def _update_aliens(self):
""" Check if the fleet is at an edge, then update the position of all aliens in the fleet """
self._check_fleet_edges()
self.aliens.update()
if pygame.sprite.spritecollideany(self.ship, self.aliens):
self._ship_hit()
# Look for aliens hitting the bottom of the screen
self._check_aliens_bottoms()
def _update_bullets(self):
""" Update position of bullets and get rid of old bullets """
# Update bullet position
self.bullets.update()
for bullet in self.bullets.copy():
if bullet.rect.bottom <= 0:
self.bullets.remove(bullet)
self._check_bullet_alien_collisions()
def _update_screen(self):
""" Update images on the screen and flip to the new screen """
self.screen.fill(self.settings.bg_color)
self.stars.draw(self.screen)
self.ship.blit_me()
for bullet in self.bullets.sprites():
bullet.draw_bullet()
self.aliens.draw(self.screen)
# Draw the 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()
