pygame游戏之旅计算游戏中躲过的障碍数量_Python

本文为大家分享了pygame 游戏之旅的第8篇，供大家参考，具体内容如下

定义一个计数函数：

									def things_dodged(count):

									 font = pygame.font.sysfont(none, 25)

									 text = font.render("dodged:"+str(count), true, black)

									 gamedisplay.blit(text,(0,0))

在游戏循环中加入计数，然后增加一些游戏难度，例如加速障碍，增加障碍的宽度：

									dodged += 1

									thing_speed += 1

									thing_width += (dodged * 1.2)

全部代码：

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									import pygame

									import time

									import random

									pygame.init()

									white = (255,255,255)

									black = (0,0,0)

									car_width = 100

									display_width = 800

									display_height = 600

									gamedisplay = pygame.display.set_mode( (display_width,display_height) )

									pygame.display.set_caption('a bit racey')

									clock = pygame.time.clock()

									carimg = pygame.image.load('car.png')

									def things_dodged(count):

									 font = pygame.font.sysfont(none, 25)

									 text = font.render("dodged:"+str(count), true, black)

									 gamedisplay.blit(text,(0,0))

									def things(thingx, thingy, thingw, thingh, color):

									 pygame.draw.rect(gamedisplay, color, [thingx, thingy, thingw, thingh])

									def car(x, y):

									 gamedisplay.blit(carimg, (x,y))

									def text_objects(text, font):

									 textsurface = font.render(text, true, black)

									 return textsurface, textsurface.get_rect()

									def message_diaplay(text):

									 largetext = pygame.font.font('freesansbold.ttf',115)

									 textsurf, textrect = text_objects(text, largetext)

									 textrect.center = ((display_width/2),(display_height/2))

									 gamedisplay.blit(textsurf, textrect)

									 pygame.display.update()

									 time.sleep(2)

									 game_loop()

									def crash():

									 message_diaplay('you crashed')

									def game_loop():

									 x = display_width * 0.45

									 y = display_height * 0.8

									 x_change = 0

									 dodged = 0

									 gameexit = false

									 thing_startx = random.randrange(0, display_width)

									 thing_starty = -600

									 thing_speed = 7

									 thing_width = 100

									 thing_height = 100

									 while not gameexit:

									 for event in pygame.event.get():

									  if event.type == pygame.quit:

									  pygame.quit()

									  quit()

									  if event.type == pygame.keydown:

									  if event.key == pygame.k_left:

									   x_change = -5

									  elif event.key == pygame.k_right:

									   x_change = 5

									  if event.type == pygame.keyup:

									  if event.key == pygame.k_left or event.key == pygame.k_right:

									   x_change = 0

									  print(event)

									 x += x_change

									 gamedisplay.fill(white)

									 things(thing_startx, thing_starty, thing_width, thing_height, black)

									 thing_starty += thing_speed

									 car(x,y)

									 things_dodged(dodged)

									 if x > display_width - car_width or x < 0:

									  gameexit = true

									 if thing_starty > display_height:

									  thing_starty = 0 - thing_height

									  thing_startx = random.randrange(0, display_width)

									  dodged += 1

									  thing_speed += 1

									  thing_width += (dodged * 1.2)

									 if y < thing_starty + thing_height:

									  print('y crossover')

									  if x > thing_startx and x < thing_startx + thing_width or x + car_width > thing_startx and x + car_width < thing_startx + thing_width:

									  print('x crossover')

									  crash()

									 pygame.display.update()

									 clock.tick(60)

									#crash()

									game_loop()

									pygame.quit()

									quit()