18. 联机猜拳游戏设计与实现¶
18.1. 功能描述¶
- 两个设备同时运行猜拳游戏并发送双方的结果给对方，比较大小显示出输赢结果。
18.2. 设计思路¶
- 逻辑部分与单机版基本相同，不同之处在于本次实验需要实现两个skids板子的远程交互，并且需自定义简单的数据格式用以辨别不同玩家
- 连接到mqtt服务器
- 在玩家操作完后等待网络回调获取对方的结果并判断输赢。
- 在回调获取到对方的结果后等待用户按键操作并判断输赢。
18.3. 代码实现¶
玩家一代码：
导入库文件
from machine import Pin,UART
import random
import time
import screen
import ubitmap
import text
import network
import utime
from umqtt import MQTTClient
定义类并初始化
class Game():
def __init__(self, playerName, computerName):#初始化
#网络设定
#WiFi名称和密码
self.wifi_name = "NEUI"
self.wifi_SSID = "NEUI3187"
#MQTT服务端信息
SERVER = "112.125.89.85" #MQTT服务器地址
SERVER_PORT = 3881 #MQTT服务器端口
DEVICE_ID = "wc001" #设备ID
TOPIC1 = b"/cloud-skids/online/dev/" + DEVICE_ID
self.TOPIC2 = b"/cloud-skids/message/server/" + DEVICE_ID
CLIENT_ID = "f25410646a8348f8a1726a3890ad8f83"
#设备状态
ON = "1"
OFF = "0"
#对方的选择
self.d=["1","2","3"]
self.choose=0
self.mark=0
#启动网络连接
self.do_connect()
gc.collect()
self.client = MQTTClient(CLIENT_ID, SERVER, SERVER_PORT)
self.client.set_callback(self.sub_cb) #设置回调
self.client.connect()
print("连接到服务器：%s" % SERVER)
self.client.publish(TOPIC1, ON) #发布“1”到TOPIC1
self.client.subscribe(self.TOPIC2) #订阅TOPIC
#游戏设定
self.gameStart = False
self.playerName = playerName
self.computerName = computerName
self.playerScore = 0
self.computerScore = 0
self.equalNum = 0
self.playerStatus = 0;
self.playerMessage = ""
self.computerStatus = 0
self.computerMessage = ""
for p in pins:
keys.append(Pin(p,Pin.IN))
self.displayInit()
连接wifi网络接口，使用STA模式
def do_connect(self):
sta_if = network.WLAN(network.STA_IF) #STA模式
ap_if = network.WLAN(network.AP_IF) #AP模式
if ap_if.active():
ap_if.active(False) #关闭AP
if not sta_if.isconnected():
print('Connecting to network...')
sta_if.active(True) #激活STA
sta_if.connect(self.wifi_name, self.wifi_SSID) #WiFi的SSID和密码
while not sta_if.isconnected():
pass
print('Network config:', sta_if.ifconfig())
连接到mqtt服务器接口
def esp(self):
self.c.set_callback(self.sub_cb) #设置回调
self.c.connect()
print("连接到服务器：%s" % self.SERVER)
self.c.publish(self.TOPIC1, self.ON) #发布“1”到TOPIC1
self.c.subscribe(self.TOPIC2) #订阅TOPIC
#display.text("从微信取得信息", 20, 20, 0xf000, 0xffff)
服务器回调接口，将接受到的数据转存到choose内，二号玩家发送21、22或23,根据choose的值显示出拳结果
def sub_cb(self,topic, message):
message = message.decode()
print("mark is :",self.mark)
self.choose=int(message)
if (self.choose<20 ):#来自1号自己的信息，不判断
print ("对方尚未选择出拳")
return
else:
self.mark=self.mark+1#修改标志，代表一方已完成选择
print("player1 get choose is :",self.choose)
self.computerStatus = self.choose-20
if(self.computerStatus == 1):
self.computerMessage = "%s出拳为：剪刀"%self.computerName
bmp_jiandao.draw(150, 140)
if(self.computerStatus == 2):
self.computerMessage = "%s出拳为：石头"%self.computerName
bmp_shitou.draw(150, 140)
if(self.computerStatus == 3):
self.computerMessage = "%s出拳为：布 "%self.computerName
bmp_bu.draw(150, 140)
#显示电脑和玩家的出拳信息
text.draw(self.playerMessage, 20, 84, 0x000000, 0xffffff)
text.draw(self.computerMessage, 20, 100, 0x000000, 0xffffff)
#判断胜负并显示结果
if self.mark%2==0:#如果双方都完成选择
resultMessage = " 平局 "
if self.computerStatus==0:
return
elif(self.playerStatus == self.computerStatus):
self.equalNum+=1
elif(self.playerStatus==1 and self.computerStatus==3):
resultMessage = "%s胜出"%self.playerName
self.playerScore+=1
elif(self.playerStatus==2 and self.computerStatus==1):
resultMessage = "%s胜出"%self.playerName
self.playerScore+=1
elif(self.playerStatus==3 and self.computerStatus==2):
resultMessage = "%s胜出"%self.playerName
self.playerScore+=1
elif(self.computerStatus==1 and self.playerStatus==3):
resultMessage = "%s胜出"%self.computerName
self.computerScore+=1
elif(self.computerStatus==2 and self.playerStatus==1):
resultMessage = "%s胜出"%self.computerName
self.computerScore+=1
elif(self.computerStatus==3 and self.playerStatus==2):
resultMessage = "%s胜出"%self.computerName
self.computerScore+=1
text.draw(resultMessage, 90, 210, 0x000000, 0xffffff)
self.updateTotolArea()
显示初始化界面包括顶部的游戏规则说明与下方的结果显示，并将gameStart变量置位True，代表游戏开始。
def displayInit(self, x=10, y=10, w=222, h=303):
#显示游戏规则信息
mentionStr1 = "游戏规则："
mentionStr2 = "按键1.剪刀 按键2.石头"
mentionStr3 = "按键3.布 按键4.结束"
text.draw(mentionStr1, 20, 20, 0x000000, 0xffffff)
text.draw(mentionStr2, 20, 36, 0x000000, 0xffffff)
text.draw(mentionStr3, 20, 52, 0x000000, 0xffffff)
text.draw("-------------", 20, 68, 0x000000, 0xffffff)
self.updateTotolArea()
#设置游戏运行状态
self.gameStart = True
按键事件处理，在按下一个键后，mark变量+1，发送结果并显示
def pressKeyboardEvent(self, key):
keymatch=["Key1","Key2","Key3","Key4"]
#游戏还未开始，不必处理键盘输入
if(self.gameStart == False):
return
print(keymatch[key])
self.mark=self.mark+1
if(keymatch[key] == "Key1"):
self.playerStatus = 1
self.playerMessage = "%s出拳为：剪刀"%self.playerName
self.client.publish(self.TOPIC2,"1"+self.d[self.playerStatus-1])#11
bmp_jiandao.draw(40, 140)
elif(keymatch[key] == "Key2"):
self.playerStatus = 2
self.playerMessage = "%s出拳为：石头"%self.playerName
self.client.publish(self.TOPIC2,"1"+self.d[self.playerStatus-1])#12
bmp_shitou.draw(40, 140)
elif(keymatch[key] == "Key3"):
self.playerStatus = 3
self.playerMessage = "%s出拳为：布 "%self.playerName
self.client.publish(self.TOPIC2,"1"+self.d[self.playerStatus-1])#13
bmp_bu.draw(40, 140)
else:
text.draw("游戏结束", 90, 210, 0x000000, 0xffffff)
#设置游戏运行状态
self.gameStart = False
return
#对方玩家出拳
#一号玩家收到21-23
print("choose is :",self.choose)
if (self.choose<20 or self.mark%2==1):
print ("对方尚未选择出拳")
return
else:
self.computerStatus = self.choose-20
if(self.computerStatus == 1):
self.computerMessage = "%s出拳为：剪刀"%self.computerName
bmp_jiandao.draw(150, 140)
if(self.computerStatus == 2):
self.computerMessage = "%s出拳为：石头"%self.computerName
bmp_shitou.draw(150, 140)
if(self.computerStatus == 3):
self.computerMessage = "%s出拳为：布 "%self.computerName
bmp_bu.draw(150, 140)
#显示电脑和玩家的出拳信息
text.draw(self.playerMessage, 20, 84, 0x000000, 0xffffff)
text.draw(self.computerMessage, 20, 100, 0x000000, 0xffffff)
#判断胜负并显示结果
resultMessage = " 平局 "
if self.computerStatus==0:
return
elif(self.playerStatus == self.computerStatus):
self.equalNum+=1
elif(self.playerStatus==1 and self.computerStatus==3):
resultMessage = "%s胜出"%self.playerName
self.playerScore+=1
elif(self.playerStatus==2 and self.computerStatus==1):
resultMessage = "%s胜出"%self.playerName
self.playerScore+=1
elif(self.playerStatus==3 and self.computerStatus==2):
resultMessage = "%s胜出"%self.playerName
self.playerScore+=1
elif(self.computerStatus==1 and self.playerStatus==3):
resultMessage = "%s胜出"%self.computerName
self.computerScore+=1
elif(self.computerStatus==2 and self.playerStatus==1):
resultMessage = "%s胜出"%self.computerName
self.computerScore+=1
elif(self.computerStatus==3 and self.playerStatus==2):
resultMessage = "%s胜出"%self.computerName
self.computerScore+=1
text.draw(resultMessage, 90, 210, 0x000000, 0xffffff)
self.updateTotolArea()
游戏开始函数每次循环都调用client.check_msg()函数，接受到信息以后调用sub_cb函数
def startGame(self):
print("-------猜拳游戏开始-------")
while True:
self.client.check_msg()
i = 0
j = -1
for k in keys:
if(k.value() == 0):
if i!=j:
j = i
self.client.check_msg()
self.pressKeyboardEvent(i)
self.client.check_msg()
i = i+1;
if(i > 3):
i = 0
time.sleep_ms(100) #按键防抖
def updateTotolArea(self):
#汇总区域用于显示电脑和玩家的胜平负次数
print("-------更新汇总区域-------")
playerTotal = "%s赢了%d局" % (self.playerName, self.playerScore)
computerTotal = "%s赢了%d局" % (self.computerName, self.computerScore)
equalTotal = "平局%d次" % self.equalNum
text.draw("-------------", 20, 240, 0x000000, 0xffffff)
text.draw(playerTotal, 20, 256, 0x000000, 0xffffff)
text.draw(computerTotal, 20, 272, 0x000000, 0xffffff)
text.draw(equalTotal, 20, 288, 0x000000, 0xffffff)
if __name__ == '__main__':
newGame = Game("玩家1", "玩家2")
newGame.startGame()
玩家二的代码和玩家一不一样的地方是发送的数据（玩家1发送11-16，玩家2发送21-26）和CLIENT_ID不一样
