client.cpp

#include <sys/socket.h>
#include <netinet/in.h>
#include <iostream>
#include <unistd.h>
#include <thread>
#include <string>
#include <arpa/inet.h>

void receive_msgs(int clientSocket, std::string nickname) {
  while(true) {
    char buffer[1024] = {0};
    int bytes = recv(clientSocket, buffer, sizeof(buffer), 0);

    if (bytes > 0) {
      

      std::cout << "\r\033[K" << buffer << "\n";
      
      std::cout << "\033[36m" << nickname << "\033[0m: ";
      std::cout.flush();
    }
    else if (bytes == 0) {
      std::cout << "Disconected from server.\n";
      break;
    }
    else {
      break;
    }
  }
}

int main() {
  std::string nickname;
  std::cout << "Enter your nickname: ";
  std::getline(std::cin, nickname);

  int clientSocket = socket(AF_INET, SOCK_STREAM, 0);

  sockaddr_in serverAddress;
  serverAddress.sin_family = AF_INET;
  serverAddress.sin_port = htons(25575);
  serverAddress.sin_addr.s_addr = INADDR_ANY;

//  inet_pton(AF_INET, "ur_server_ip", &serverAddress.sin_addr); // paste ip address of server here if server is not in local network

  if(connect(clientSocket, (struct sockaddr*)&serverAddress, sizeof(serverAddress)) < 0) {
    std::cerr << "Connection failed.\n";
    return 1;
  }

  std::thread receiver(receive_msgs, clientSocket, nickname);
  receiver.detach();

  std::string msg, fullmsg;
  while(true) {
    std::cout << "\033[36m" << nickname << "\033[0m: ";
    std::getline(std::cin, msg);

    if(!msg.empty()) {
      fullmsg = "\033[36m" + nickname + "\033[0m: " + msg;
      send(clientSocket, fullmsg.c_str(), fullmsg.size(), 0);
    }
  }

  return 0;
}