第十二章
12-1 蓝色天空 ： 创建一个背景为蓝色的Pygame窗口。
12-2 游戏角色 ： 找一幅你喜欢的游戏角色位图图像或将一幅图像转换为位图。 创建一个类， 将该角色绘制到屏幕中央， 并将该图像的背景色设置为屏幕背景色， 或将
屏幕背景色设置为该图像的背景色。
12-1
import sys import pygame def run(): # 初始化游戏并创建一个屏幕对象 pygame.init() screen = pygame.display.set_mode((800, 600)) pygame.display.set_caption("Blue Sky") # 设置背景色 bg_color = (0, 124, 195) while True: screen.fill(bg_color) for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() pygame.display.flip() run()
输出：
12-2
ship.py
import pygame class Ship(): """docstring for Ship""" def __init__(self, screen): """初始化飞船并设置其初始位置""" self.screen = screen # 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() self.screen_rect = screen.get_rect() # 将每搜新飞船放在屏幕底部中央 self.rect.centerx = self.screen_rect.centerx self.rect.centery = self.screen_rect.centery def biltme(self): self.screen.blit(self.image,self.rect)
run.py
import sys import pygame from ship import Ship def run(): pygame.init() screen = pygame.display.set_mode((1200,600)) pygame.display.set_caption("Blue Sky") bg_color = (0,124,195) s = Ship(screen) while True: screen.fill(bg_color) s.biltme() for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() pygame.display.flip() run()
输出：
文件夹截图
12-3 火箭 ： 编写一个游戏， 开始时屏幕中央有一个火箭， 而玩家可使用四个方向键上下左右移动火箭。 请务必确保火箭不会移到屏幕外面。
12-4 按键 ： 创建一个程序， 显示一个空屏幕。 在事件循环中， 每当检测到pygame. KEYDOWN 事件时都打印属性event. key 。 运行这个程序， 并按各种键， 看看
Pygame如何响应
12-3
setting.py
class Setting(): def __init__(self): """初始化游戏的设置""" #屏幕设置 self.screen_width = 1200 self.screen_height = 600 self.bg_color = (255,255,255) self.ship_speed_factor = 1.5
rocket.py
import pygame class Rocket(): """docstring for Rocket""" def __init__(self,ai_setting, screen): self.screen = screen self.image = pygame.image.load('images/ship.jpg') self.rect = self.image.get_rect() self.screen_rect = screen.get_rect() self.ai_setting = ai_setting self.rect.centerx = self.screen_rect.centerx self.rect.centery = self.screen_rect.centery self.center = float(self.rect.centerx) self.centery = float(self.rect.centery) self.moving_right = False self.moving_left = False self.moving_up = False self.moving_down = False def update(self): if self.moving_right and self.rect.right < self.screen_rect.right: self.center +=self.ai_setting.ship_speed_factor if self.moving_left and self.rect.left > 0: self.center -=self.ai_setting.ship_speed_factor if self.moving_up and self.rect.top > 0: self.centery -= self.ai_setting.ship_speed_factor if self.moving_down and self.rect.bottom < self.screen_rect.bottom: self.centery +=self.ai_setting.ship_speed_factor self.rect.centerx = self.center self.rect.centery = self.centery def blitme(self): self.screen.blit(self.image,self.rect)
run.py
import sys import pygame from rocket import Rocket from setting import Setting import game_functions as gf def run(): pygame.init() ai_setting = Setting() screen =pygame.display.set_mode((ai_setting.screen_width,ai_setting.screen_height)) pygame.display.set_caption("Rocket") r = Rocket(ai_setting,screen) while True: gf.check_events(r) r.update() gf.update_screen(ai_setting,screen,r) run()
输出：
（能动的飞机哦）
12-4
import sys import pygame def test(): pygame.init() screen = pygame.display.set_mode((900,600)) pygame.display.set_caption("12-4") bg_color = (255,255,255) while True: for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() elif event.type == pygame.KEYDOWN: if event.key == pygame.K_UP: bg_color=(255,0,255) elif event.key == pygame.K_DOWN: bg_color=(0,255,255) elif event.key == pygame.K_LEFT: bg_color=(255,255,0) elif event.key == pygame.K_RIGHT: bg_color = (0,0,255) screen.fill(bg_color) pygame.display.flip() test()
输出：
按四个方向键会有不同的输出结果，主要是背景颜色
https://blog.csdn.net/weixin_38855195/article/details/78539670
12-5 侧面射击 ： 编写一个游戏， 将一艘飞船放在屏幕左边， 并允许玩家上下移动飞船。 在玩家按空格键时， 让飞船发射一颗在屏幕中向右穿行的子弹， 并在子弹离开
屏幕而消失后将其删除。
game_functions.py
import sys import pygame from bullet import Bullets def check_keydown_events(event,ai_setting,screen,rocket,bullets): if event.key == pygame.K_UP: rocket.moving_up = True elif event.key == pygame.K_DOWN: rocket.moving_down = True elif event.key == pygame.K_SPACE: new_bullet = Bullets(ai_setting,screen,rocket) bullets.add(new_bullet) def check_keyup_events(event,rocket): if event.key == pygame.K_UP: rocket.moving_up = False elif event.key == pygame.K_DOWN: rocket.moving_down = False def check_events(ai_settings,screen,rocket,bullets): """响应按键和鼠标事件""" for event in pygame.event.get(): if event.type == pygame.QUIT: print("Quit") sys.exit() elif event.type == pygame.KEYDOWN: check_keydown_events(event,ai_settings,screen,rocket,bullets) elif event.type == pygame.KEYUP: check_keyup_events(event,rocket) def update_bullet(bullets): for bullet in bullets: if bullet.rect_left<=0: bullets.remove(bullet) def update_screen(ai_settings,screen,rocket,bullets): screen.fill(ai_settings.bg_color) for bullet in bullets.sprites(): bullet.draw_bullet() rocket.blitme() pygame.display.flip()
bullet.py
import pygame from pygame.sprite import Sprite class Bullets(Sprite): """docstring for Bullets""" def __init__(self, ai_settings, screen, rocket): super(Bullets, self).__init__() self.screen = screen self.rect = pygame.Rect(0, 0, ai_settings.bullet_width, ai_settings.bullet_height) self.rect.centery = rocket.rect.centery self.rect.right = rocket.rect.right # 存储小数表示的子弹位置 self.x = float(self.rect.x) self.color = ai_settings.bullet_color self.speed_factor = ai_settings.bullet_speed_factor def update(self): self.x += self.speed_factor self.rect.x = self.x def draw_bullet(self): pygame.draw.rect(self.screen, self.color, self.rect)
setting.py
class Setting(): def __init__(self): """初始化游戏的设置""" #屏幕设置 self.screen_width = 1200 self.screen_height = 600 self.bg_color = (255,255,255) self.ship_speed_factor = 1.5 self.bullet_speed_factor = 1 self.bullet_width = 15 self.bullet_height = 3 self.bullet_color =(60,60,60)
rocket.py
import pygame class Rocket(): """docstring for Rocket""" def __init__(self,ai_setting, screen): self.screen = screen self.image = pygame.image.load('images/rocket.bmp') self.rect = self.image.get_rect() self.screen_rect = screen.get_rect() self.ai_setting = ai_setting self.rect.x = 0 self.rect.centery = self.screen_rect.centery self.center = float(self.rect.centerx) self.centery = float(self.rect.centery) self.moving_up = False self.moving_down = False def update(self): if self.moving_up and self.rect.top > 0: self.centery -= self.ai_setting.ship_speed_factor if self.moving_down and self.rect.bottom < self.screen_rect.bottom: self.centery +=self.ai_setting.ship_speed_factor self.rect.centery = self.centery def blitme(self): self.screen.blit(self.image,self.rect)
run.py
import sys import pygame from rocket import Rocket from setting import Setting from pygame.sprite import Group import game_functions as gf def run(): pygame.init() ai_setting = Setting() screen =pygame.display.set_mode((ai_setting.screen_width,ai_setting.screen_height)) pygame.display.set_caption("Rocket") r = Rocket(ai_setting,screen) bullets = Group() while True: gf.check_events(ai_setting,screen,r,bullets) r.update() bullets.update() gf.update_screen(ai_setting,screen,r,bullets) run()
输出：
