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：
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def things_dodged(count):
font = pygame.font.sysfont(none, 25)
text = font.render("dodged:"+str(count), true, black)
gamedisplay.blit(text,(0,0))
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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：
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dodged += 1
thing_speed += 1
thing_width += (dodged * 1.2)
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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()
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效果图：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/pianzang5201/article/details/78307096