pygame游戏之旅 添加游戏暂停功能

本文为大家分享了pygame游戏之旅的第13篇，供大家参考，具体内容如下

定义暂停函数：

def paused():
 largeText = pygame.font.SysFont('comicsansms',115)
 TextSurf, TextRect = text_objects('Paused', largeText)
 TextRect.center = ((display_width/2),(display_height/2))
 gameDisplay.blit(TextSurf, TextRect)

 while pause:
  for event in pygame.event.get():
   print(event)
   if event.type == pygame.QUIT:
    pygame.quit()
    quit()
##  gameDisplay.fill(white)
  button("Continue", 150, 450, 100, 50, green, bright_green,game_loop)
  button("Quit",550, 450, 100, 50, red, bright_red,quitgame)
  pygame.display.update()
  clock.tick(15)

重新定义原来的crah函数：

def crash():
 largeText = pygame.font.SysFont('comicsansms',115)
 TextSurf, TextRect = text_objects('You Crashed!', largeText)
 TextRect.center = ((display_width/2),(display_height/2))
 gameDisplay.blit(TextSurf, TextRect)

 while True:
  for event in pygame.event.get():
   print(event)
   if event.type == pygame.QUIT:
    pygame.quit()
    quit()
##  gameDisplay.fill(white)
  button("Play Again", 150, 450, 100, 50, green, bright_green,game_loop)
  button("Quit",550, 450, 100, 50, red, bright_red,quitgame)
  pygame.display.update()
  clock.tick(15)

源代码：

import pygame
import time
import random

pygame.init()

white = (255,255,255)
black = (0,0,0)
gray = (128,128,128)
red = (200,0,0)
green = (0,200,0)
bright_red = (255,0,0)
bright_green = (0,255,0)
blue = (0,0,255)

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')
pause = False
##crash = True

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 crash():
 largeText = pygame.font.SysFont('comicsansms',115)
 TextSurf, TextRect = text_objects('You Crashed!', largeText)
 TextRect.center = ((display_width/2),(display_height/2))
 gameDisplay.blit(TextSurf, TextRect)

 while True:
  for event in pygame.event.get():
   print(event)
   if event.type == pygame.QUIT:
    pygame.quit()
    quit()
##  gameDisplay.fill(white)
  button("Play Again", 150, 450, 100, 50, green, bright_green,game_loop)
  button("Quit",550, 450, 100, 50, red, bright_red,quitgame)
  pygame.display.update()
  clock.tick(15)

def button (msg, x, y, w, h, ic, ac, action=None):
 mouse =pygame.mouse.get_pos()
 click = pygame.mouse.get_pressed()
 print(click)
 if x + w > mouse[0] > x and y + h > mouse[1] > y:
  pygame.draw.rect(gameDisplay, ac, (x,y,w,h))
  if click[0] == 1 and action != None:
   action()
##    if action == "play":
##     action()
##    if action == "quit":
##     pygame.quit()
##     quit()
 else:
  pygame.draw.rect(gameDisplay, ic, (x,y,w,h))
 smallText = pygame.font.SysFont('comicsansms', 20)
 textSurf, textRect = text_objects(msg, smallText)
 textRect.center = ( (x+(w/2)), (y+(h/2)))
 gameDisplay.blit(textSurf, textRect)

def quitgame():
 pygame.quit()
 quit()
def unpause():
 global pause
 pause = False

def paused():
 largeText = pygame.font.SysFont('comicsansms',115)
 TextSurf, TextRect = text_objects('Paused', largeText)
 TextRect.center = ((display_width/2),(display_height/2))
 gameDisplay.blit(TextSurf, TextRect)

 while pause:
  for event in pygame.event.get():
   print(event)
   if event.type == pygame.QUIT:
    pygame.quit()
    quit()
##  gameDisplay.fill(white)
  button("Continue", 150, 450, 100, 50, green, bright_green,unpause)
  button("Quit",550, 450, 100, 50, red, bright_red,quitgame)
  pygame.display.update()
  clock.tick(15)

def game_intro():
 global pasue
 pause = False
 intro = True
 while intro:
  for event in pygame.event.get():
   print(event)
   if event.type == pygame.QUIT:
    pygame.quit()
    quit()
  gameDisplay.fill(white)
  largeText = pygame.font.SysFont('comicsansms',115)
  TextSurf, TextRect = text_objects('A bit Racey', largeText)
  TextRect.center = ((display_width/2),(display_height/2))
  gameDisplay.blit(TextSurf, TextRect)
  button("GO", 150, 450, 100, 50, green, bright_green,game_loop)
  button("Quit",550, 450, 100, 50, red, bright_red,quitgame)
  pygame.display.update()
  clock.tick(15)

def game_loop():
 global pause
 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
    elif event.key == pygame.K_p:
     pause = True
     paused()
   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_intro()
game_loop()
pygame.quit()
quit()

结果图：

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