School Commit Init

Anul 2/Semestrul 1/Retele de calculatoare/Blackjack/blackjack_game.js

@@ -0,0 +1,91 @@
+class BlackjackGame {
+    constructor() {
+      this.deck = this.shuffleDeck(this.generateDeck());
+      this.playerHand = [];
+      this.dealerHand = [];
+      this.hasStarted = false;
+    }
+  
+    generateDeck() {
+      // Generate a deck of cards
+        const deck = [];
+        const suits = ['♠', '♣', '♥', '♦'];
+        const ranks = ['A', '2', '3', '4', '5', '6', '7', '8', '9','10', 'J', 'Q', 'K'];
+        for (let suit of suits) {
+            for (let rank of ranks) {
+                deck.push(rank + suit);
+            }
+        }
+        return deck;
+    }
+  
+    shuffleDeck(deck) {
+        // Shuffle the deck
+        for (let i = deck.length - 1; i > 0; i--) {
+            const j = Math.floor(Math.random() * (i + 1));
+            [deck[i], deck[j]] = [deck[j], deck[i]];
+        }
+        return deck;
+      
+    }
+  
+    dealInitialHands() {
+      this.deck = this.shuffleDeck(this.generateDeck());
+      this.playerHand = [this.deck.pop(), this.deck.pop()];
+      this.dealerHand = [this.deck.pop(), this.deck.pop()];
+      this.hasStarted = true;
+    }
+  
+    playerHit() {
+      const card = this.deck.pop();
+      this.playerHand.push(card);
+    }
+  
+    playerStand() {
+        this.dealerPlay();
+    }
+  
+    dealerPlay() {
+      while (this.getHandValue(this.dealerHand) < 17 && this.getHandValue(this.dealerHand) <= this.getHandValue(this.playerHand)) {
+        this.dealerHand.push(this.deck.pop());
+      }
+    }
+  
+    determineWinner() {
+      const playerValue = this.getHandValue(this.playerHand);
+      const dealerValue = this.getHandValue(this.dealerHand);
+      this.hasStarted = false;
+      if (playerValue > 21 || (dealerValue <= 21 && dealerValue > playerValue)) {
+        return 'Dealer';
+      } else if (playerValue === 21 || (dealerValue > 21) || (playerValue < 21 && playerValue > dealerValue)) {
+        return 'Player';
+      } else {
+        return 'Push';
+      }
+    }
+  
+    getHandValue(hand) {
+      // Calculate hand value
+        let value = 0;
+        let aces = 0;
+        for (let card of hand) {
+            const rank = card.slice(0, -1);
+            if (rank === 'A') {
+                aces++;
+                value += 11;
+            } else if (['J', 'Q', 'K'].includes(rank)) {
+                value += 10;
+            } else {
+                value += Number(rank);
+            }
+        }
+        while (value > 21 && aces > 0) {
+            value -= 10;
+            aces--;
+        }
+        return value;
+    }
+  }
+  
+  module.exports = BlackjackGame;
+  

Anul 2/Semestrul 1/Retele de calculatoare/Blackjack/client.py

@@ -0,0 +1,138 @@
+import socket
+import json
+
+class Client:
+    def __init__(self, address, port):
+        self.address = address
+        self.port = port
+        self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        
+    def connect(self):
+        self.socket.connect((self.address, self.port))
+
+    def send(self, message):
+        self.socket.send(message.encode())
+
+    def receive_string(self):
+        return self.socket.recv(1024).decode()
+
+    def receive(self):
+        return json.loads(self.socket.recv(1024))
+
+    def close(self):
+        self.socket.close()
+
+class UI:
+    def __init__(self):
+        self.client = Client("172.30.114.67", 3000)
+        self.client.connect()
+        print(self.client.receive_string())
+        self.run()
+    def run(self):
+        while True:
+            option = input("Choose an option: ")
+            match option:
+                case "1":
+                    self.client.send(option)
+                    data = self.client.receive()
+                    print("\nPlayer hand:")
+                    for card in data['playerHand']:
+                        print(card, end=" ")
+                    print("\nPlayer score:", data['playerScore'])
+
+                    print("\nDealer hand:")
+                    for card in data['dealerHand']:
+                        print(card, end=" ")
+                    print("\nDealer score:", data['dealerScore'])
+                case "2":
+                    self.client.send(option)
+                    print(self.client.receive_string())
+                    self.client.close()
+                    exit()
+                case "stand":
+                    self.client.send(option)
+                    data = self.client.receive()
+                    if(data.get('error') != None):
+                        print(data['error'])
+                        continue
+                    print("\nPlayer hand:")
+                    for card in data['playerHand']:
+                        print(card, end=" ")
+                    print("\nPlayer score:", data['playerScore'])
+
+                    print("\nDealer hand:")
+                    for card in data['dealerHand']:
+                        print(card, end=" ")
+                    print("\nDealer score:", data['dealerScore'])
+                    if(data.get('winner') != None):
+                        print("Winner: " + data['winner'])
+                        print(self.client.receive_string())
+                    else:
+                        print("hit or stand?")
+                case "s":
+                    self.client.send(option)
+                    data = self.client.receive()
+                    if(data.get('error') != None):
+                        print(data['error'])
+                        continue
+                    print("\nPlayer hand:")
+                    for card in data['playerHand']:
+                        print(card, end=" ")
+                    print("\nPlayer score:", data['playerScore'])
+
+                    print("\nDealer hand:")
+                    for card in data['dealerHand']:
+                        print(card, end=" ")
+                    print("\nDealer score:", data['dealerScore'])
+                    if(data.get('winner') != None):
+                        print("Winner: " + data['winner'])
+                        print(self.client.receive_string())
+                    else:
+                        print("hit or stand?")
+                case "hit":
+                    self.client.send(option)
+                    data = self.client.receive()
+                    if(data.get('error') != None):
+                        print(data['error'])
+                        continue
+                    print("\nPlayer hand:")
+                    for card in data['playerHand']:
+                        print(card, end=" ")
+                    print("\nPlayer score:", data['playerScore'])
+
+                    print("\nDealer hand:")
+                    for card in data['dealerHand']:
+                        print(card, end=" ")
+                    print("\nDealer score:", data['dealerScore'])
+                    if(data.get('winner') != None):
+                        print("Winner: " + data['winner'])
+                        print(self.client.receive_string())
+                    else:
+                        print("hit or stand?")
+                case "h":
+                    self.client.send(option)
+                    data = self.client.receive()
+                    if(data.get('error') != None):
+                        print(data['error'])
+                        continue
+                    print("\nPlayer hand:")
+                    for card in data['playerHand']:
+                        print(card, end=" ")
+                    print("\nPlayer score:", data['playerScore'])
+
+                    print("\nDealer hand:")
+                    for card in data['dealerHand']:
+                        print(card, end=" ")
+                    print("\nDealer score:", data['dealerScore'])
+                    if(data.get('winner') != None):
+                        print("Winner: " + data['winner'])
+                        print(self.client.receive_string())
+                    else:
+                        print("hit or stand?")
+
+                case _:
+                    print("Invalid option")
+
+    
+        
+ui=UI()

Anul 2/Semestrul 1/Retele de calculatoare/Blackjack/server.js

@@ -0,0 +1,85 @@
+const net = require('net');
+
+const BlackjackGame = require('./blackjack_game.js');
+
+const server = net.createServer((socket) => {
+    // This callback function will be called every time a new client connects to the server
+    console.log('Client connected');
+    const game = new BlackjackGame();
+    // send Start game message to client
+    socket.write('Welcome to Blackjack!\nCommands: \n1. New game\n2. Exit\n');
+
+    // Handle incoming data from the client
+    socket.on('data', (data) => {
+        console.log(`Received data from client: ${data}`);
+        console.log(`Type of data: ${typeof data}`)
+        console.log(`Data to string: ${data.toString()}`)
+
+        // expected data: 1.(start/play again) 1.exit 2.hit 2.stand
+        if (data.toString() === '1') {
+            game.dealInitialHands();
+            const dict = {
+                playerHand: game.playerHand,
+                playerScore: game.getHandValue(game.playerHand),
+                dealerHand: [game.dealerHand[0],'??'],
+                dealerScore: game.getHandValue([game.dealerHand[0]]),
+                winner: null
+            };
+            socket.write(JSON.stringify(dict));
+        } 
+        else if (data.toString() === '2') {
+            socket.write('Thank you for playing!');
+            socket.end();
+        }
+        else if (["hit","h"].includes(data.toString()) && game.hasStarted) {
+            game.playerHit();
+            // check if player busts
+            if (game.getHandValue(game.playerHand) > 21) {
+                const json = {
+                    playerHand: game.playerHand,
+                    playerScore: game.getHandValue(game.playerHand),
+                    dealerHand: game.dealerHand,
+                    dealerScore: game.getHandValue(game.dealerHand),
+                    winner: 'Dealer',
+                };
+                socket.write(JSON.stringify(json));
+                socket.write('Wanna play again?\n1. Yes\n2. No\n');
+            }
+            else{
+                const dict = {
+                    playerHand: game.playerHand,
+                    playerScore: game.getHandValue(game.playerHand),
+                    dealerHand: [game.dealerHand[0],'??'],
+                    dealerScore: game.getHandValue([game.dealerHand[0]]),
+                    winner: null
+                };
+                socket.write(JSON.stringify(dict));
+            }
+        }
+        else if (["stand","s"].includes(data.toString()) && game.hasStarted) {
+            game.playerStand();
+            const dict = {
+                playerHand: game.playerHand,
+                playerScore: game.getHandValue(game.playerHand),
+                dealerHand: game.dealerHand,
+                dealerScore: game.getHandValue(game.dealerHand),
+                winner: game.determineWinner()
+            };
+            socket.write(JSON.stringify(dict));
+            socket.write('Wanna play again?\n1. Yes\n2. No\n');
+        }
+        else{
+            socket.write(JSON.stringify({error:"Invalid command"}));
+        }
+    });
+
+    // Handle client disconnection
+    socket.on('end', () => {
+        console.log('Client disconnected');
+    });
+});
+
+// Start the server and listen on port 3000
+server.listen(3000, () => {
+    console.log('Server started on port 3000');
+});

Anul 2/Semestrul 1/Retele de calculatoare/Blackjack/stress_test.sh

@@ -0,0 +1 @@
+seq 10000 | xargs -I{} -P 10000 bash -c "echo -e '1\nhit\n2' | python3 client.py" > /dev/null

Anul 2/Semestrul 1/Retele de calculatoare/CNmain.py

@@ -0,0 +1,6 @@
+import socket
+s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
+msg="hey"
+s.sendto(str.encode(msg),("127.0.0.1",5555))
+msg,adr=s.recvfrom(10)
+print (msg.decode())

Anul 2/Semestrul 1/Retele de calculatoare/Lab3.py

@@ -0,0 +1,9 @@
+import socket
+
+# Create a socket object
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+
+# Send message to server 172 30 0 4 57777
+s.connect(("172.19.66.240",2222))
+
+

Anul 2/Semestrul 1/Retele de calculatoare/server.py

@@ -0,0 +1,9 @@
+import socket
+s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)  
+s.bind(("0.0.0.0",5555))                           
+                         
+s.listen(5)
+while True:
+    clientsocket, address = s.accept()
+    print(f"Connection from {address} has been established!")
+    s.listen(5)