p12-项目1-武装飞船

 

import sys

import pygame

from settings import Settings
from ship import Ship
from bullet import Bullet


class AlienInvasion:
    "管理游戏资源和行为的类"

    def __init__(self):
        "初始化游戏并创建资源"
        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

        # self.screen = pygame.display.set_mode(
        #     (self.settings.screen_width, self.settings.screen_height))
        pygame.display.set_caption("Alien Invasion")
        self.ship = Ship(self)
        self.bullets = pygame.sprite.Group()

    def run_game(self):
        "开始游戏的主循环"
        while True:
            self._check_events()
            self.ship.update()

            self._update_bullets()
            self._update_screen()

    def _check_events(self):
        #             监控键盘和鼠标事件
        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)

    def _check_keydown_events(self, event):
        # 相应按键
        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_SPACE:
            self._fire_bullet()

    def _check_keyup_events(self, event):
        # 相应松开
        if event.key == pygame.K_RIGHT:
            self.ship.moving_right = False
        elif event.key == pygame.K_LEFT:
            self.ship.moving_left = False
        elif event.key == pygame.K_q:
            sys.exit()

    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()
        #         删除消失的子弹
        for bullet in self.bullets.copy():
            if bullet.rect.bottom <= 0:
                self.bullets.remove(bullet)

    def _update_screen(self):
        # 每次循环时都会重新绘制屏幕
        self.screen.fill(self.settings.bg_color)
        self.ship.blitme()
        for bullet in self.bullets.sprites():
            bullet.draw_bullet()
        # 让最近绘制的屏幕可见
        pygame.display.flip()


if __name__ == '__main__':
    # 创建游戏实例并运行游戏
    ai = AlienInvasion()
    ai.run_game()

 

 

alien_invasion.py

 

import pygame
from pygame.sprite import  Sprite

class Bullet(Sprite):
    # 管理飞船发射子弹的类
    def __init__(self, ai_game):
        # 创建一个子弹对象
        super().__init__()
        self.screen = ai_game.screen
        self.settings = ai_game.settings
        self.color = self.settings.bullet_color
        # 在0.0处创建一个表示子弹的矩形,再设置正确的位置
        self.rect = pygame.Rect(0,0,self.settings.bullet_width,self.settings.bullet_height)
        self.rect.midtop = ai_game.ship.rect.midtop

        # 存储用小鼠表示的子弹的位置
        self.y = float(self.rect.y)

    def update(self):
        # 向上移动子弹
        # 更新表示子弹位置的小数值
        self.y -= self.settings.bullet_speed
        # 更新表示子弹的rect的位置
        self.rect.y = self.y

    def draw_bullet(self):
        # 在屏幕上绘制子弹
        pygame.draw.rect(self.screen,self.color,self.rect)

 

 

 

bullet.py

 

class Settings:
    "存储游戏外星人入侵种所有设置的类"

    def __init__(self):
        "初始化游戏的设置"
        # 屏幕设置
        self.screen_width = 1200
        self.screen_height = 800
        self.bg_color = (230, 230, 230)
        self.ship_speed = 1.5

        #     子弹设置
        self.bullet_speed = 1.0
        self.bullet_width = 3
        self.bullet_height = 15
        self.bullet_color = (60, 60, 60)
        self.bullets_allowed = 3

 

 

 

settings.py

 

import pygame


class Ship:
    "管理飞船的类"

    def __init__(self, ai_game):
        "初始化飞船并设置其初始位置"
        self.screen = ai_game.screen
        self.settings = ai_game.settings
        self.screen_rect = ai_game.screen.get_rect()
        # 加载飞船图像并获取其外接矩形
        self.image = pygame.image.load('images/ship.bmp')
        self.rect = self.image.get_rect()

        # 对于每艘新飞船,都将其放在屏幕底部的中央
        # self.rect.midbottom = self.screen_rect.midbottom
        self.rect.center = self.screen_rect.center

        #     在飞船的属性中x中存储小数值
        self.x = float(self.rect.x)

        # 移动标志
        self.moving_right = False
        self.moving_left = False




    def update(self):
        "根据移动标志调整飞船的位置"
        # if self.moving_right:
        #     self.rect.x += 1
        # if self.moving_left:
        #     self.rect.x -= 1

    #     更新飞船而不是rect对象的x值
        if self.moving_right and self.rect.right < self.screen_rect.right:
            self.x += self.settings.ship_speed
        if self.moving_left and self.rect.left > 0:
            self.x -= self.settings.ship_speed

    #         根据self.x跟新rect对象
        self.rect.x = self.x



    def blitme(self):
        # 在指定位置绘制飞船
        self.screen.blit(self.image, self.rect)

 

 

 

ship.py

 

飞船分为4个文件 设置,飞船,子弹和主文件

安装了pygame可以直接运行