本文源代码参考《python游戏编程入门》。
这是一个简单的答题游戏，主要实现功能：答题界面，选择答案，答对时答案标绿，答错时答案标红，同时给正确答案标绿，按下回车键进入下一题。完整代码：
import sys,pygame
from pygame.locals import *
class Trivia(object):
def __init__(self,filename):
self.data = []
self.current = 0
self.total = 0
self.correct = 0
self.score = 0
self.scored = False
self.failed = False
self.wronganswer = 0
self.colors = [white,white,white,white]
f = open(filename,'r',encoding='utf-8')
trivia_data = f.readlines()
f.close()
for text_line in trivia_data:
self.data.append(text_line.strip())
self.total += 1
def show_question(self):
print_text(font1,210,5,"TRIVIA GAME")
print_text(font2,190,500-20,"Press Keys (1-4) To Answer",purple)
print_text(font2,530,5,"SCORE",purple)
print_text(font2,550,25,str(self.score),purple)
self.correct = int(self.data[self.current+5])
question = self.current // 6 + 1
print_text(font1,5,80,"QUESTION " + str(question))
print_text(font2,20,120,self.data[self.current],yellow)
if self.scored:
self.colors = [white,white,white,white]
self.colors[self.correct-1] = green
print_text(font1,230,380,"CORRECT!",green)
print_text(font2,170,420,"Press Enter For Next Question",green)
elif self.failed:
self.colors = [white,white,white,white]
self.colors[self.wronganswer-1] = red
self.colors[self.correct-1] = green
print_text(font1,220,380,"INCORRECT!",red)
print_text(font2,170,420,"Press Enter For Next Question",red)
print_text(font1,5,170,"ANSWERS")
print_text(font2,20,210,"1- "+self.data[self.current+1],self.colors[0])
print_text(font2,20,240,"2- "+self.data[self.current+2],self.colors[1])
print_text(font2,20,270,"3- "+self.data[self.current+3],self.colors[2])
print_text(font2,20,300,"4- "+self.data[self.current+4],self.colors[3])
def handle_input(self,number):
if not self.scored and not self.failed:
if number == self.correct:
self.scored = True
self.score += 1
else:
self.failed = True
self.wronganswer = number
def next_question(self):
if self.scored or self.failed:
self.scored = False
self.failed = False
self.correct = 0
self.colors = [white,white,white,white]
self.current += 6
if self.current >= self.total:
self.current = 0
def print_text(font,x,y,text,color=(255,255,255),shadow=True):
if shadow:
imgText = font.render(text,True,(0,0,0))
screen.blit(imgText,(x-2,y-2))
imgText = font.render(text,True,color)
screen.blit(imgText,(x,y))
pygame.init()
screen = pygame.display.set_mode((600,500))
pygame.display.set_caption("The Trivia Game")
font1 = pygame.font.Font(None,40)
font2 = pygame.font.Font(None,24)
white = 255,255,255
cyan = 0,255,255
yellow = 255,255,0
purple = 255,0,255
green = 0,255,0
red = 255,0,0
trivia = Trivia("trivia_data.txt")
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
elif event.type == KEYUP:
if event.key == pygame.K_ESCAPE:
pygame.quit()
sys.exit()
elif event.key == pygame.K_1:
trivia.handle_input(1)
elif event.key == pygame.K_2:
trivia.handle_input(2)
elif event.key == pygame.K_3:
trivia.handle_input(3)
elif event.key == pygame.K_4:
trivia.handle_input(4)
elif event.key == pygame.K_RETURN:
trivia.next_question()
screen.fill((0,0,200))
trivia.show_question()
pygame.display.update()
要读入的文件内容和格式，当然你可以按照自己的意愿增删，用英文哦
What is the name of the 4th planet from the sun?
Saturn
Mars
Earth
Venus
2
Which planet has the most moons in the solar system?
Uranus
Saturn
Neptune
Jupiter
4
Approximately how large is the Sun's diameter(width)?
65 thousand miles
45 million miles
1 million miles
825 thousand miles
3
How far is the Earth from the Sun in its orbit (on average)?
13 million miles
93 milloin miles
250 thousand miles
800 thousand miles
2
What causes the Earth's oceans to have tides?
The Moon
The Sun
Earth's molten core
Oxygen
1
先导入模块
import sys,pygame
from pygame.locals import *
在主代码中单独定义一个函数，用于绘制文字对象到界面上。参数：font表示font对象，x,y坐标位置，color颜色初始值为白色
def print_text(font,x,y,text,color=(255,255,255),shadow=True):
if shadow:
imgText = font.render(text,True,(0,0,0))
screen.blit(imgText,(x-2,y-2))
imgText = font.render(text,True,color)
screen.blit(imgText,(x,y))
把游戏的主要属性都写到一个类Trivia中，有一个参数filename，表示读取的文件，构造函数里给属性初始化：
class Trivia(object):
def __init__(self,filename):
self.data = []
self.current = 0
self.total = 0
self.correct = 0
self.score = 0
self.scored = False
self.failed = False
self.wronganswer = 0
self.colors = [white,white,white,white]
#打开文件，设置编码方式为utf-8
f = open(filename,'r',encoding='utf-8')
trivia_data = f.readlines()
f.close()
#readlines方法是按行读取文件，生成列表
#由于生成的每一个元素最后会有换行符，所以使用strip函数删除空白
#添加到新的列表self.data中
for text_line in trivia_data:
self.data.append(text_line.strip())
self.total += 1
显示问题和答案函数：
def show_question(self):
print_text(font1,210,5,"TRIVIA GAME")
print_text(font2,190,500-20,"Press Keys (1-4) To Answer",purple)
print_text(font2,530,5,"SCORE",purple)
print_text(font2,550,25,str(self.score),purple)
#获取正确答案，文件中第5行是答案数字字符型，将其转化为数值型
self.correct = int(self.data[self.current+5])
#每6行是一个题，对6整除，加1是因为列表从0计数，得到题目
#将题目绘制上去
question = self.current // 6 + 1
print_text(font1,5,80,"QUESTION " + str(question))
print_text(font2,20,120,self.data[self.current],yellow)
#判断如果输入答案正确，将答案标绿，改变颜色列表self.color相应位置的值
if self.scored:
self.colors = [white,white,white,white]
self.colors[self.correct-1] = green
print_text(font1,230,380,"CORRECT!",green)
print_text(font2,170,420,"Press Enter For Next Question",green)
#如果输入答案错误，错误答案标红，正确答案标绿
elif self.failed:
self.colors = [white,white,white,white]
self.colors[self.wronganswer-1] = red
self.colors[self.correct-1] = green
print_text(font1,220,380,"INCORRECT!",red)
print_text(font2,170,420,"Press Enter For Next Question",red)
#绘制答案，如果有答题，那颜色列表的值也会改变
print_text(font1,5,170,"ANSWERS")
print_text(font2,20,210,"1- "+self.data[self.current+1],self.colors[0])
print_text(font2,20,240,"2- "+self.data[self.current+2],self.colors[1])
print_text(font2,20,270,"3- "+self.data[self.current+3],self.colors[2])
print_text(font2,20,300,"4- "+self.data[self.current+4],self.colors[3])
判断输入是否正确，一个参数number，输入的答案数字：
def handle_input(self,number):
#self.scored和self.failed的初始值都为false，说明这道题没有被答过。
#接着判断答案为真则self.scored为真，答案为假则self.failed为真
if not self.scored and not self.failed:
if number == self.correct:
self.scored = True
self.score += 1
else:
self.failed = True
self.wronganswer = number
进入下一题：
def next_question(self):
#判断有一个为真时，说明该题已回答，初始化
if self.scored or self.failed:
self.scored = False
self.failed = False
self.correct = 0
self.colors = [white,white,white,white]
#接着读取题目，如果读完了，从头开始
self.current += 6
if self.current >= self.total:
self.current = 0
窗口主程序：
pygame.init()
screen = pygame.display.set_mode((600,500))
pygame.display.set_caption("The Trivia Game")
font1 = pygame.font.Font(None,40)
font2 = pygame.font.Font(None,24)
#定义各种颜色
white = 255,255,255
cyan = 0,255,255
yellow = 255,255,0
purple = 255,0,255
green = 0,255,0
red = 255,0,0
#新建对象，参数为文件名
trivia = Trivia("trivia_data.txt")
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
elif event.type == KEYUP:
if event.key == pygame.K_ESCAPE:
pygame.quit()
sys.exit()
#判断按下的按键，调用输入函数
elif event.key == pygame.K_1:
trivia.handle_input(1)
elif event.key == pygame.K_2:
trivia.handle_input(2)
elif event.key == pygame.K_3:
trivia.handle_input(3)
elif event.key == pygame.K_4:
trivia.handle_input(4)
elif event.key == pygame.K_RETURN:
trivia.next_question()
screen.fill((0,0,200))
trivia.show_question()
pygame.display.update()
最后实现的效果：
答题正确
答题错误
