Unity client code:
using System;
using System.Collections;
using System.Net.Sockets;
using System.Text;
using UnityEngine;
using UnityEngine.UI;
public class OnlineChess : MonoBehaviour
{
public GameObject DengLuJieMian;
public InputField InputText;
public Button Zhece;
public Text selfName;
public Text otherName;
public Text typeBy;
public ToggleGroup toggleGroup;
private Socket socket;
private byte[] buffer = new byte[1024];
private string SetText;
//--------Chess logic---------
public Transform Btns;
public Transform Win;
public GameObject Zi;
public Sprite SpriteBlick;
public Sprite SpriteWhite;
public Button RePlay;
public AudioSource audioSource;
bool isDown = false;//Other players suddenly
string jsonData = "";
bool isWin = false; //Winning or losing
bool isResult = false;//Start again
string playerType = "";//The player is white or black
//Traverse the checkerboard squares
int[] sites = new int[225];//1 is a black stone, -1 is a white stone
//Traverse the current chess piece
int[] number = new int[225];//The number on the chess piece
int childCount = 0;//Playing chess starts from number 0, and the first piece is numbered 1
int winID = 0;//0 means no victory or defeat, 1 means black wins, -1 means white wins
//Load chessboard pieces
public string len = "";//Join the status of 225 chess pieces on the chessboard
[HideInInspector]
public Toggle[] toggles;//Choose whether to hold black or white, black moves first
void Start()
{
toggles = toggleGroup.GetComponentsInChildren<Toggle>();
for (int i = 0; i < toggles.Length; i + + )
{
Toggle toggle = toggles[i];
toggle.onValueChanged.AddListener((bool value) => OnToggleClick(toggle, value));
}
Zhece.onClick.AddListener(() => {
if (playerType == "" & amp; & amp; playerType == string.Empty) return;
if (InputText.text.Length < 0) return;
ConnectGo();
ZhuCe();
});
for (int i = 0; i < Btns.childCount; i + + )
{
int k = i;
Button btn = Btns.GetChild(k).GetComponent<Button>();
btn.onClick.AddListener(() => {
if (btn.transform.childCount > 0) return;//Repeated moves are prohibited
if (winID != 0) return;//End after victory
DownChess(k.ToString());
});
}
RePlay.onClick.AddListener(() => {
ResultGame();
sendMass("restart");
});
}
public void OnToggleClick(Toggle toggle, bool isSwitch)
{
Debug.Log("toogle group name:" + toggle.name + isSwitch);
if (toggle.name== "Toggle1")
{
typeBy.text="Holding Black";
playerType = "black";
}
if (toggle.name == "Toggle2")
{
typeBy.text = "Holding White";
playerType = "white";
}
if (toggle.name == "Toggle1" & amp; & amp; !isSwitch)
{
playerType = string.Empty;
}
if (toggle.name == "Toggle2" & amp; & amp; !isSwitch)
{
playerType = string.Empty;
}
}
void ConnectGo()
{
//AddressFamily addressing type SocketType socket type ProtocolType protocol type
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//connect to the server
socket.Connect("192.168.10.220", 7777);
Debug.Log("Connection successful!");
//Start receiving information
readServer();
}
//BB
void readServer()
{
socket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, ReceiveCallback, null);
}
void ReceiveCallback(IAsyncResult iar)
{
int len = socket.EndReceive(iar);
if (len == 0) return;
string str = Encoding.UTF8.GetString(buffer, 0, len);
SetText = str;
Debug.Log(SetText);
//Loop to receive data
readServer();
//Analyze this string--Mass:Fafawo:5:1_1,0_0,0_3...
if (SetText.Split(':').Length == 4)
{
if (SetText.Split(':')[0]=="Mass")
{
//Get the opposite move number, because the message is sent to everyone except yourself to let them update their own chessboard
childCount = int.Parse(SetText.Split(':')[2]);
jsonData = SetText.Split(':')[3];
if (!isDown)
{
isDown = true;
}
}
}
//If Heizi wins
//Analyze this string--Mass:fafawa:black
if (SetText.Split(':').Length == 3)
{
if (SetText.Split(':')[0] == "Mass")
{
string msg = SetText.Split(':')[2];
if (msg.Trim() == "black")
{
winID = 1;
isWin = true;
}
else if (msg.Trim() == "white")
{
winID = -1;
isWin = true;
}
else if (msg.Trim() == "restart")
{
isResult = true;
}
}
}
}
//send Message
public void sendServer(string msg)
{
//Convert the string to a UTF-8 encoded byte array
var outputBuffer = Encoding.UTF8.GetBytes(msg);
socket.BeginSend(outputBuffer, 0, outputBuffer.Length, SocketFlags.None, null, null);
}
//Bind the "Enter" button (registered user name)
public void ZhuCe()
{
if (InputText.text != "")
{
selfName.text = InputText.text;
string msg = "userName:" + InputText.text + "\r\
";
sendServer(msg);
DengLuJieMian.SetActive(false);
}
}
//Bind the "Send" button (group message)
public void sendMass(string str)
{
if (str != "")
{
string msg = "Mass:" + selfName.text + ":" + str + "\r\
";
sendServer(msg);
}
}
//Listen and update the status of other clients
private void Update()
{
//all of a sudden
if(isDown)
{
DrawChess(jsonData);
}
//restart
if(isResult)
{
ResultGame();
}
//Winning or losing
if(isWin)
{
if (winID == 1)
{
Win.GetChild(0).gameObject.SetActive(true);
}
if (winID == -1)
{
Win.GetChild(1).gameObject.SetActive(true);
}
isWin = false;
}
}
void ResultGame()
{
for (int i = 0; i < Btns.childCount; i + + )
{
if (Btns.GetChild(i).childCount > 0)
{
Destroy(Btns.GetChild(i).GetChild(0).gameObject);
}
}
Win.GetChild(0).gameObject.SetActive(false);
Win.GetChild(1).gameObject.SetActive(false);
for (int i = 0; i < 225; i + + )
{
sites[i] = 0;
}
for (int i = 0; i < 225; i + + )
{
number[i] = 0;
}
childCount = 0;
winID = 0;
isResult = false;
}
public void DownChess(string str)
{
if (winID == 0)
{
int foo = int.Parse(str);
len = "";
//If the number of chess pieces is an even number, you can only play black pieces.
if (childCount % 2 == 0 & amp; & amp; playerType == "black")
{
childCount + + ;
sites[foo] = 1;//Mark the sunspots whose status 1 is down
}
else if (childCount % 2 == 1 & amp; & amp; playerType == "white")
{
childCount + + ;
sites[foo] = -1;//Mark the white piece with status -1 as down
}
Debug.Log("Current number of chess pieces: " + childCount);
//chess piece number
number[foo] = childCount;
for (int i = 0; i < 225; i + + )
{
if (i < 224)
{
len + = sites[i] + "_" + number[i] + ",";
}
else
{
len + = sites[i] + "_" + number[i];
}
}
//len + = means concatenating string strings
//Example result analysis:
//1_3,0_0,-1_9,0_0... means that a black piece was placed on the first position of the chessboard in the third step, and the piece number is 3.
//The third position, the ninth step, and the white stone number is 9
//Update your own chessboard status first
//Observe the server code if(client != socket)
//If the server does not ignore self-generation, it can log out this line first and wait to update the chessboard status with all clients.
DrawChess(len);
//Tell others
sendMass(childCount + ":" + len);
}
}
void DrawChess(string str)
{
for (int i = 0; i < 225; i + + )
{
int num = int.Parse(str.Split(',')[i].Split('_')[0]);//drop point
int num2 = int.Parse(str.Split(',')[i].Split('_')[1]);//position number
//if(num != 0)
if (num == 1 || num == -1)
{
if (Btns.GetChild(i).childCount == 0)
{
GameObject go = Instantiate(Zi);
go.transform.SetParent(Btns.GetChild(i));
go.transform.localPosition = Vector3.zero;
audioSource.Play();//Sound effects of chess moves
go.transform.GetComponent<Image>().sprite = num == 1 ? SpriteBlick : SpriteWhite;
go.transform.GetChild(0).GetComponent<Text>().text = num2.ToString();
go.SetActive(true);
ResultWin();
}
}
}
isDown = false;
}
void ResultWin()
{
for (int i = 0; i < 225; i + + )
{
if (i % 15 < 11)
{
GetWin(i, 1, 0);
if (i < 165)
{
GetWin(i, 15, 1);
}
}
if (i < 165)
{
GetWin(i, 15, 0);
if (i % 15 > 3)
{
GetWin(i, 15, -1);
}
}
}
}
private void GetWin(int childID, int v, int xieID)
{
if (Btns.GetChild(childID).childCount > 0 & amp; & amp;
Btns.GetChild(childID + v * 1 + 1 * xieID).childCount > 0 & amp; & amp;
Btns.GetChild(childID + v * 2 + 2 * xieID).childCount > 0 & amp; & amp;
Btns.GetChild(childID + v * 3 + 3 * xieID).childCount > 0 & amp; & amp;
Btns.GetChild(childID + v * 4 + 4 * xieID).childCount > 0)
{
if (Btns.GetChild(childID).GetChild(0).GetComponent<Image>().sprite.name ==
Btns.GetChild(childID + v * 1 + 1 * xieID).GetChild(0).GetComponent<Image>().sprite.name & amp; & amp;
Btns.GetChild(childID + v * 1 + 1 * xieID).GetChild(0).GetComponent<Image>().sprite.name ==
Btns.GetChild(childID + v * 2 + 2 * xieID).GetChild(0).GetComponent<Image>().sprite.name & amp; & amp;
Btns.GetChild(childID + v * 2 + 2 * xieID).GetChild(0).GetComponent<Image>().sprite.name ==
Btns.GetChild(childID + v * 3 + 3 * xieID).GetChild(0).GetComponent<Image>().sprite.name & amp; & amp;
Btns.GetChild(childID + v * 3 + 3 * xieID).GetChild(0).GetComponent<Image>().sprite.name ==
Btns.GetChild(childID + v * 4 + 4 * xieID).GetChild(0).GetComponent<Image>().sprite.name
)
{
if (Btns.GetChild(childID).GetChild(0).GetComponent<Image>().sprite.name == "black")
{
Win.GetChild(0).gameObject.SetActive(true);
}
if (Btns.GetChild(childID).GetChild(0).GetComponent<Image>().sprite.name == "white")
{
Win.GetChild(1).gameObject.SetActive(true);
}
//Tell others
sendMass(Btns.GetChild(childID).GetChild(0).GetComponent<Image>().sprite.name);
}
}
}
}
The unity server code is a naked socket. Broadcast messages to all clients except itself. The server-side code is in the next article.
