cato447/TicTacToe-Multiplayer
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Basics of client server communication and drawing of gamestates finished

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This commit is contained in:
Simon
2021-02-18 11:42:11 +01:00
parent 8ed0e5196b
commit b7113b7ee8
15 changed files with 238 additions and 47 deletions
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3
Server/res/META-INF/MANIFEST.MF Normal file
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@@ -0,0 +1,3 @@
Manifest-Version: 1.0
Main-Class: networking.Server

41
Server/src/game/TicTacToe_Server.java Normal file
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@@ -0,0 +1,41 @@
package game;
import java.nio.charset.StandardCharsets;
public class TicTacToe_Server {
private String gameState;
public TicTacToe_Server(){
gameState = "---------";
}
public void setGameState(String gameState) {
this.gameState = gameState;
}
public String getGameState() {
return gameState;
}
public int makeClientMove(String input) {
int column = Double.valueOf(input.split("\\|")[0]).intValue() / 300;
int row = Double.valueOf(input.split("\\|")[1]).intValue() / 300;
int index = column * 3 + row;
if (isLegalMove(column, row)) {
byte[] gameStateBytes = gameState.getBytes();
gameStateBytes[index] = (byte) 'x';
gameState = new String(gameStateBytes, StandardCharsets.UTF_8);
return 200;
} else {
return 404;
}
}
private boolean isLegalMove(int column, int row){
int index = column * 3 + row;
return gameState.charAt(index) == '-';
}
}

84
Server/src/networking/Server.java
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@@ -1,5 +1,6 @@
package networking;
import game.TicTacToe_Server;
import logging.LogType;
import logging.ServerLogger;
@@ -15,7 +16,8 @@ public class Server {
private HashMap<Socket, String> clientNames;
private HashMap<Socket, DataOutputStream> outstreams;
private HashMap<Socket, DataInputStream> instreams;
private ServerLogger logger;
private TicTacToe_Server ticTacToe_server;
private ServerLogger serverLogger;
private Scanner scanner;
private int requiredConnections;
@@ -26,11 +28,12 @@ public class Server {
clientNames = new HashMap<>();
outstreams = new HashMap<>();
instreams = new HashMap<>();
ticTacToe_server = new TicTacToe_Server();
scanner = new Scanner(System.in);
logger = new ServerLogger();
serverLogger = new ServerLogger();
requiredConnections = 1;
logger.printLog("Server started successfully", LogType.Log);
serverLogger.printLog("Server started successfully", LogType.Log);
} catch (IOException e) {
e.printStackTrace();
}
@@ -39,7 +42,7 @@ public class Server {
public void connectClients(){
try {
int id = 0;
logger.printLog(String.format("Waiting for %d clients to connect ...", requiredConnections), LogType.Log);
serverLogger.printLog(String.format("Waiting for %d clients to connect ...", requiredConnections), LogType.Log);
while(clients.size() < requiredConnections) {
Socket momentaryClient = serverSocket.accept();
clients.put(id, momentaryClient);
@@ -62,7 +65,7 @@ public class Server {
clientNames.put(client, instreams.get(client).readUTF());
outstreams.get(client).writeUTF(serverSocket.getInetAddress().getHostAddress()+":"+serverSocket.getLocalPort());
outstreams.get(client).flush();
logger.printLog(String.format("%s got connected", clientNames.get(client)), LogType.Log);
serverLogger.printLog(String.format("%s got connected", clientNames.get(client)), LogType.Log);
} else {
outstreams.get(client).writeInt(403);
outstreams.get(client).flush();
@@ -74,19 +77,16 @@ public class Server {
}
}
public void getMessages(){
public void ticTacToe_gameloop(){
for (Socket client: clients.values()) {
try {
while (true) {
while (!client.isClosed()) {
String message = instreams.get(client).readUTF();
if (!message.equalsIgnoreCase("exit()")) {
logger.printLog(message, clientNames.get(client), LogType.Message);
} else {
outstreams.get(client).writeInt(200);
logger.printLog(String.format("%s closed the connection",clientNames.get(client)), LogType.Log);
break;
}
serverLogger.printLog(message, clientNames.get(client), LogType.Message);
outstreams.get(client).writeInt(200);
outstreams.get(client).flush();
serverLogger.printLog("Sent verification code", clientNames.get(client), LogType.Log);
this.gameFlow(message, client);
}
} catch (IOException e) {
e.printStackTrace();
@@ -97,10 +97,56 @@ public class Server {
}
}
}
clients.clear();
System.out.println("Do you want to keep the server alive and wait for other clients ? [y]/[n]");
if (scanner.nextLine().equalsIgnoreCase("y")){
this.connectClients();
}
public void gameFlow(String input, Socket client){
switch (input){
case "gameState":
try {
outstreams.get(client).writeUTF(ticTacToe_server.getGameState());
outstreams.get(client).flush();
serverLogger.printLog("Sent gameState", clientNames.get(client), LogType.Log);
break;
} catch (IOException e) {
e.printStackTrace();
}
case "update":
try {
String position = instreams.get(client).readUTF();
serverLogger.printLog(position, clientNames.get(client), LogType.Message);
outstreams.get(client).writeInt(200);
outstreams.get(client).flush();
serverLogger.printLog("Sent verification code", clientNames.get(client), LogType.Log);
int verificationCode = ticTacToe_server.makeClientMove(position);
if (verificationCode == 200) {
String gameState = ticTacToe_server.getGameState();
outstreams.get(client).writeUTF(gameState);
outstreams.get(client).flush();
serverLogger.printLog(String.format("Sent gameState: %s", gameState), clientNames.get(client), LogType.Log);
break;
} else {
outstreams.get(client).writeUTF(" ");
outstreams.get(client).flush();
serverLogger.printLog(String.format("Move is not allowed!"), clientNames.get(client), LogType.Error);
break;
}
} catch (IOException e) {
e.printStackTrace();
}
case "exit()":
try {
outstreams.get(client).writeInt(200);
outstreams.get(client).flush();
outstreams.get(client).close();
instreams.get(client).close();
client.close();
serverLogger.printLog(String.format("%s closed the connection",clientNames.get(client)), LogType.Log);
break;
} catch (IOException e) {
e.printStackTrace();
}
}
}
@@ -108,6 +154,6 @@ public class Server {
Server server = new Server(2589);
server.connectClients();
server.handshake();
server.getMessages();
server.ticTacToe_gameloop();
}
}