一个简单的演示，综合了鼠标的输入、一些基本的图形绘制等等。当炸弹到达屏幕底端的时候如果没有抓住的话会丢掉性命。如果撞击到挡板，玩家就算抓住了炸弹，另一个炸弹也会落下。

源代码如下：

# -*- coding: utf-8 -*-
"""
Created on Tue Jun 30 23:42:49 2015

@author: liuchang
"""


import pygame,sys,random
from pygame.locals import *

pygame.init()
color= 255,255,0
#绘制圆心的位置
positionx=300
positiony=0
radius = 30
width=5

vel_x = 1
vel_y = 1

rec_x=250
rec_y=500
rec_a=100
rec_b=20

mouse_x=0
mouse_y=0

lives = 10
score = 0
#判断是否需要重启游戏
game_over =False 
font1 =pygame.font.Font(None,30) 
screen= pygame.display.set_mode((600,520))

pygame.display.set_caption("bomb game")


def print_text(font,x,y,text,color=(255,255,255)):
    imgText=font.render(text,True,color)
    screen.blit(imgText,(x,y))


while True:
     
     for event in pygame.event.get():
         if event.type in (QUIT,KEYDOWN):
             sys.exit()
         elif event.type== MOUSEMOTION:
             mouse_x,mouse_y = event.pos
     #print positionx  
     positionx +=vel_x
     positiony+=vel_y
         
     if positionx<radius or positionx>600-radius:
             vel_x =- vel_x
     if positiony<0 or positiony>500-radius:
             vel_y =- vel_y    
     screen.fill((0,0,200))  
     #draw boom
     pygame.draw.circle(screen,color ,(positionx,positiony),radius,0)
     #draw rectangle
     rec_x = mouse_x
     if rec_x <0:
         rec_x=0
     elif rec_x > 500:
         rec_x = 500
     pygame.draw.rect(screen,color,(rec_x,rec_y,rec_a,rec_b),0)
     
     #score and lives 
     if positiony == 500-radius :
         if positionx>rec_x and positionx<rec_x+100:
             score+=1
             positionx = random.randint(0,500)
             positiony=0
         else: 
             lives -=1
             positionx = random.randint(0,500)
             positiony=0
             if lives == 0:
                 game_over =True
                 print  "game over"
     if game_over :
      print_text(font1,100,200,"<click to play>")
      lives=0
      score = 0             
     #draw score and lives
     print_text(font1,0,0,"lives: "+str(lives/2))
     print_text(font1,500,0,"score :"+str(score/2))
     
     pygame.display.update()