下面我们一起用pygame编写一个打字测速游戏
这是一个很实用的有趣的小游戏：
开始之前先来学习几个小函数：
1、 ord(ch)
python内置函数，传入一个字符，返回字符的ascii码
2、chr(num)
python内置函数，传入一个十进制或十六进制，返回ascii码对应的字符
3、os.path.getsize(filename)
传入文件路径，返回文件大小，返回0为空文件
4、pygame.key.get_pressed()
返回一个记录按键事件的字典，字典中的键为按键类型，字典中的值为bool中的True或者False、
例如：
keys = pygame.key.get_pressed()if keys[K_RETURN]:print("按了回车键")
下面是我们的代码
我们将全部代码写在多个.py文件中，最后通过主程序引入各个子程序，这样做可以让我们编写程序逻辑更清晰，有助于修改调整程序。
游戏主程序
import pygameimport sysimport timefrom random import randintfrom settings import Settingfrom displayboard import Displayboardimport functions as funpygame.init()my_settings = Setting()screen = pygame.display.set_mode((my_settings.screen_width, my_settings.screen_high))pygame.display.set_caption("Test Your Typing")dis_board = Displayboard(my_settings, screen)#标志变量letter_ascii = randint(97, 122)letter = chr(letter_ascii - 32)game_active = Falsescores = 0speed = 0timing = Falseremaining_time = my_settings.limited_timefastest_speed = int (fun.read_fastest_speed(my_settings.filename))while True:'''游戏的主循环'''for event in pygame.event.get():if event.type == pygame.QUIT:pygame.quit()sys.exit()elif event.type == pygame.KEYDOWN:if event.key == pygame.K_ESCAPE:pygame.quit()sys.exit()keys = pygame.key.get_pressed()if keys[pygame.K_RETURN] and not game_active:scores = 0remaining_time = my_settings.limited_timegame_active = Truetiming = True#开始计时if timing:start_time = time.perf_counter()timing = False#填充界面 screen.fill(my_settings.BLUE)#显示文本图像 dis_board.display_speed_text(speed)dis_board.display_fastest_text(fastest_speed)#游戏还未开始时执行的操作if not game_active:pygame.mouse.set_visible(True)dis_board.display_top_text()dis_board.display_start_text()#游戏进行时执行的操作if game_active:pygame.mouse.set_visible(False)dis_board.display_letter_text(letter)dis_board.display_remaining_time_text(remaining_time)if event.type == pygame.KEYDOWN:dis_board.display_typing_text()if event.key == letter_ascii:scores += 1letter_ascii = randint(97, 122)letter = chr(letter_ascii - 32)speed = scores * 3current_time = time.perf_counter()remaining_time = int (my_settings.limited_time - (current_time - start_time))if remaining_time < 0:game_active = Falseif speed >= fastest_speed:fastest_speed = speedfun.write_fastest_speed(speed, my_settings.filename) pygame.display.flip()
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存放游戏设置的程序
class Setting():'''存放游戏中的设置'''def __init__(self):#屏幕尺寸self.screen_width = 700self.screen_high = 550#字体大小self.s_font_size = 24self.m_font_size = 35self.l_font_size = 200#按钮尺寸self.button_width = 100self.button_high = 35#测试时间self.limited_time = 20#颜色self.YELLOW = (255, 255, 0)self.WHITE= (255, 255, 255)self.BLACK= ( 0, 0, 0)self.RED = (255, 0, 0)self.GREEN= ( 0, 255, 0)self.DARKGREEN = ( 0, 155, 0)self.DARKGRAY = ( 40, 40, 40)self.OLIVE= (128, 128, 0)self.BLUE= ( 0, 0, 255)self.NAVYBLUE = ( 0, 0, 128)#位置self.top_text_position = (20, 20)self.speed_text_position = (20, 100)#文本内容self.top_text = "Try to keep up " + str(self.limited_time) + " seconds!"self.start_text = "Please Enter To Start!"#文件名self.filename = r'flies\speed.txt'
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存放主程序函数的程序
import osdef read_fastest_speed(speed_file):file_size = os.path.getsize(speed_file)if file_size == 0:return 0else:with open(speed_file) as speed_file:lines = speed_file.readlines()return lines[0]def write_fastest_speed(speed, speed_file):with open(speed_file) as file:file.write(str(speed))
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显示文本的程序
import pygameclass Displayboard():'''展示程序中的文本'''def __init__(self, my_settings, screen):self.screen = screenself.my_settings = my_settingsself.screen_rect = screen.get_rect()#获取字体对象self.s_font = pygame.font.Font(r'fonts\freesansbold.ttf', my_settings.s_font_size)self.m_font = pygame.font.Font(r'fonts\freesansbold.ttf', my_settings.m_font_size)self.l_font = pygame.font.Font(r'fonts\freesansbold.ttf', my_settings.l_font_size)#获取文本图片self.top_text_image = self.s_font.render(my_settings.top_text, True, my_settings.YELLOW)self.typing_flag_image = self.s_font.render("typing!", True, my_settings.DARKGRAY)self.start_text_image = self.m_font.render(my_settings.start_text, True, my_settings.GREEN, my_settings.OLIVE)#获取surface的rectself.start_image_rect = self.start_text_image.get_rect()self.start_image_rect.center = self.screen_rect.centerself.typing_image_rect = self.typing_flag_image.get_rect()self.typing_image_rect.right = self.screen_rect.right - 20self.typing_image_rect.top = 20#显示各个文本的函数def display_top_text(self):self.screen.blit(self.top_text_image, self.my_settings.top_text_position)def display_typing_text(self):self.screen.blit(self.typing_flag_image, self.typing_image_rect)def display_start_text(self):self.screen.blit(self.start_text_image, self.start_image_rect)def display_speed_text(self, speed):speed_text_image = self.s_font.render("Current Speed: " + str(speed) + " letters/min", True, self.my_settings.YELLOW)speed_text_rect = speed_text_image.get_rect()speed_text_rect.centery = self.screen_rect.centery / 2speed_text_rect.right = self.screen_rect.right - 20self.screen.blit(speed_text_image, speed_text_rect)def display_letter_text(self, letter):letter_text_image = self.l_font.render(letter, True, self.my_settings.RED)letter_rect = letter_text_image.get_rect()letter_rect.centerx = self.screen_rect.centerxletter_rect.centery = self.screen_rect.bottom * 2 / 3self.screen.blit(letter_text_image, letter_rect)def display_remaining_time_text(self, remaining_time):remaining_time_image = self.s_font.render("Remaining Time: " + str(remaining_time), True, self.my_settings.OLIVE)remaining_time_rect = remaining_time_image.get_rect()remaining_time_rect.top = self.screen_rect.top + 20remaining_time_rect.centerx = self.screen_rect.centerxself.screen.blit(remaining_time_image, remaining_time_rect)def display_fastest_text(self, fastest_speed):fastest_speed_image = self.s_font.render("Fastest Speed: " + str(fastest_speed),True, self.my_settings.YELLOW)fastest_speed_rect = fastest_speed_image.get_rect()fastest_speed_rect.centery = self.screen_rect.centery / 2fastest_speed_rect.left = 20self.screen.blit(fastest_speed_image, fastest_speed_rect)
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