PYTHON飞机大战（第六天）

OK，今天成功做出了多个外星人，代码来了

import sys
import pygame
from bullet import Bullet
from alien import Alien


def check_keydown_events(event, ship, ai_settings, screen, bullets):
    if event.key == pygame.K_RIGHT:
        ship.moving_right = True
        print(event.key)
    elif event.key == pygame.K_LEFT:
        ship.moving_left = True
        print(event.key)
    elif event.key == pygame.K_UP:
        ship.moving_up = True
        print(event.key)
    elif event.key == pygame.K_DOWN:
        ship.moving_down = True
        print(event.key)
    elif event.key == pygame.K_SPACE:
        fire_bullet(ai_settings, screen, ship, bullets)
    elif event.key == pygame.K_ESCAPE:
        sys.exit()


# 上面的函数可以调用下面的函数！！！！

def fire_bullet(ai_settings, screen, ship, bullets):
    if len(bullets) < ai_settings.bullet_allow:
        new_bullet = Bullet(ai_settings, screen, ship)
        bullets.add(new_bullet)


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(ship, ai_settings, screen, bullets):
    # 控制飞船移动
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            check_keydown_events(event, ship, ai_settings, screen, bullets)
            # Event就是for循环里的event
        elif event.type == pygame.KEYUP:
            check_keyup_events(event, ship)


def update_bullets(aliens,bullets):
    bullets.update()
    for bullet in bullets.copy():
        if bullet.rect.bottom <= 0:
            bullets.remove(bullet)
            print(len(bullets))
        #检测是否有子弹击中外星人
        #如果集中，就删除对应的子弹和外星人
        #这行代码遍历编组子弹和编组外星人判断是否子弹和外星人的rect是否重叠，重叠的话返回字典的键值对
    collisions = pygame.sprite.groupcollide(bullets,aliens,True,True)


def update_screen(ai_settings, screen, ship, bullets, aliens):
    # 更新屏幕，将颜色和飞船印上去,以及子弹
    screen.fill(ai_settings.bg_color)
    for bullet in bullets.sprites():
        bullet.draw_buller()

    ship.blitme()
    ship.update()
    aliens.draw(screen)
    pygame.display.flip()

def update_aliens(aliens):
    aliens_moving = aliens.update()


def get_number_aliens_x(ai_settings, alien_width):
    available_space_x = ai_settings.screen_width - 2 * alien_width
    number_aliens_x = int(available_space_x / (2 * alien_width))

    return number_aliens_x
    # 将两个外星人当成一个整体，意义在于每个外星人中都空出一个外星人的距离

#创建外星人行
def get_number_rows(ai_settings, ship_height, alien_height):
    available_space_y = (ai_settings.screen_height - (3 * alien_height) - ship_height)
    number_rows = int(available_space_y / (2 * alien_height))
    return number_rows


def create_alien(ai_settings, screen, aliens, alien_number, row_number):
    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 * row_number
    aliens.add(alien)

def creat_fleet(ai_settings, screen, aliens):
    alien = Alien(ai_settings, screen)
    number_aliens_x = get_number_aliens_x(ai_settings, alien.rect.width)
    number_rows = get_number_rows(ai_settings,alien.rect.height,alien.rect.height)
    for row_number in range(number_rows):
        for alien_number in range(number_aliens_x):
        # 这一步是创建外星人的X轴和Y轴，调用create_alien模块，同时用两个for循环
        # 这一步的意义在于，建立每个外星人都是独立的个体
            create_alien(ai_settings, ai_settings.screen, aliens, alien_number,row_number)

#让外星人碰到边界然后进行回弹
def check_fleet_edges(ai_settings,aliens):
    for alien in aliens.sprites():
        if alien.check_edges():
            change_fleet_dirction(ai_settings,aliens)
            break
def change_fleet_dirction(ai_settings,aliens):
    for alien in aliens.sprites():
        alien.rect.y += ai_settings.fleet_drop
    ai_settings.fleet_direction *= -1

def update_aliens(ai_settings,aliens):
    check_fleet_edges(ai_settings,aliens)
    aliens.update()

并且也成功发射导弹进行对外星人的射击！但是，说实话今天做的像是抄作业，今天打算不通过写好的代码自己进行尝试自己进行重做一次。今天我尝试做一个矩形，然后让其进行左右上下移动，碰到边界之后返回。今天代码弄了一下午也不知道为什么不能让其进行矩形移动，代码如下：

import pygame


class moving():
    def __init__(self):
        pygame.init()
        self.screen = pygame.display.set_mode((500, 300))
        self.bg_color = self.screen.fill((65, 222, 65))
        self.font = pygame.font.Font(None, 36)
        self.text = self.font.render('Hello There', 1, (10, 10, 10))
        self.rect_width = 50
        self.rect_height = 50
        self.rect_moving = 10
        self.rect1 = pygame.Surface((60, 60), pygame.SRCALPHA)

    def text1(self, screen, text):
        textpos = text.get_rect()
        textpos.centerx = screen.get_rect().centerx
        textpos.bottom = screen.get_rect().bottom / 2
        screen.blit(text, textpos)

    def moving_rect(self,ai_setting):
        pygame.draw.rect(self.rect1, (255, 255, 255), [0, 0, self.rect_width, self.rect_height])
        x = 0
        x += self.rect_moving
        self.screen.blit(self.rect1, [x, 0])


def run():
    ai_setting = moving()
    ai_setting.text1(ai_setting.screen, ai_setting.text)
    ai_setting.moving_rect(ai_setting)

    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return

        pygame.display.update()
        pygame.display.flip()


run()

目前只能移动一次，也就是X+=self.rect_moving只能移动一次，也就是在X轴只能移动10个X，但是我想要做的是让其不断移动，直到碰到边界然后反弹。今天熬夜继续试试。。。加油