void MainWindow::connectToNetwork()
{
// Se invoca cuando se presiona el boton Connect. Solicitar los datos de conexion al
// usuario usando un dialogo para tal fin
ConnectDialog* dialog = new ConnectDialog(this);
// Muestra al dialogo en forma modal con el metodo exec(). Es decir, el dialogo reacciona
// a eventos, mientras que el mainWindow se mantiene bloqueado. Esto ocurre por invocar al
// metodo exec(), el cual impone otro ciclo de eventos que oculta el ciclo de eventos de la
// aplicacion. Si se quiere que tanto el dialog como el MainWindow reaccionen a eventos
// se invocaria al metodo dialog->show()
if ( dialog->exec() )
{
// El dialogo fue aceptado. Obtener los datos escritos del usuario y establecer la conexion
quint16 port = dialog->getPort().toUInt();
// El establecimiento de la conexion depende de si el usuario marco "Servidor" o "Cliente"
if ( dialog->shouldConnectAsServer() )
connectAsServer(port);
else
connectAsClient(dialog->getHost(), port);
}
}
//Begins the connection
void establishConnection(char *type, int *replay, char *ip) {
//Ensure players cannot leave
signal(SIGINT, leaveError);
//Server variables
struct sockaddr_in dataAddr;
int clientSocket;
struct sockaddr_in myAddr;
int i, addrSize;
char buffer[50];
//Game variables
char o_phrase[40];
char my_phrase[40];
char h_o_phrase[40];
char h_my_phrase[40];
char board[1000];
board[0] = '\0';
char guess[80];
guess[0] = '\0';
int bytesRcv;
int win = 0;
//Server connect
if (strcmp(type, "server") == 0) {
setupSocket(&myListenSocket, &myAddr, type, "");
bindSocket(&myListenSocket, &myAddr);
waitForConnection(&myListenSocket, &myAddr, &clientSocket, &dataAddr); //fix
}
//Client connect
if (strcmp(type, "client") == 0) {
setupSocket(&clientSocket, &dataAddr, type, ip);
connectAsClient(&clientSocket, &dataAddr);
}
//Loop while the game is supposed to be played again
while (*replay == 1) {
//Creates the player's phrase, hides it and stores the unhidden phrase in the buffer
game_createPhrase(my_phrase);
game_toHidden(my_phrase, h_my_phrase);
strcpy(buffer, my_phrase);
//Send the phrase to the other player and wait for them to send back
send(clientSocket, buffer, strlen(buffer), 0);
fprintf(stdout, "Waiting for your opponent to create their secret phrase...\n");
//Store what was sent back in the opponent's phrase variable
bytesRcv = recv(clientSocket, buffer, sizeof(buffer), 0);
buffer[bytesRcv] = '\0';
strcpy(o_phrase, buffer);
//Hide their phrase and create the board to print on screen
game_toHidden(o_phrase, h_o_phrase);
game_makeBoard(h_my_phrase, h_o_phrase, board);
//Show the player their own phrase
fprintf(stdout, "Your phrase: %s\n\n", my_phrase);
//Counter to make the client go first initially
i = 0;
//Game loop
while (1) {
//Ensures that the client goes first
if (i > 0 || strcmp(type, "server") == 0) {
//Wait for opponent to guess and store guess in buffer
fprintf(stdout, "Waiting for your opponent's guess...\n");
bytesRcv = recv(clientSocket, buffer, sizeof(buffer), 0);
buffer[bytesRcv] = '\0';
strcpy(guess, buffer);
//Compare guess with the actual phrase and check for win condition (1 = win, 0 = no win)
game_guess(guess, my_phrase, h_my_phrase, &win);
if (win == 1) {
win = 0;
//Wait to see if the opponent wants to play again
fprintf(stdout, "Your opponent has won. Please wait while he decides he wants to play again...\n");
bytesRcv = recv(clientSocket, buffer, sizeof(buffer), 0);
buffer[bytesRcv] = '\0';
//If opponent sends back "left", we need to do some things depending on if the opponent was the host or not
if (strcmp(buffer, "left") == 0) {
fprintf(stdout, "Your opponent left!\n");
//If you were the server and lost
if (strcmp(type, "server") == 0) {
//Re-setup the socket and listen for a new connection
setupSocket(&clientSocket, &myAddr, type, "");
waitForConnection(&myListenSocket, &myAddr, &clientSocket, &dataAddr);
i = 0;
break;
}
//Close the client socket, change player type to server and listen for a new connection
else {
close(clientSocket);
strcpy(type, "server");
setupSocket(&myListenSocket, &dataAddr, type, "");
waitForConnection(&clientSocket, &dataAddr, &myListenSocket, &myAddr); //TODO fix
break;
}
*replay = -1;
return;
}
//If they didn't send back "left", then they want to play again
//So simply break out of the game loop to start a new game with new phrases
else {
system("clear");
fprintf(stdout, "Your opponent wants to play again, let's go!\n");
break;
}
}
//Update the game board
game_makeBoard(h_my_phrase, h_o_phrase, board);
fprintf(stdout, "Your phrase: %s\n\n", my_phrase);
fprintf(stdout, "Your opponent guessed: %s\n", guess);
}
//Ask for user input
fprintf(stdout, "Guess a letter or the entire phrase.\n");
fgets(guess, sizeof(guess), stdin);
guess[strlen(guess)-1] = '\0';
//Compare guess with the actual phrase and check for win condition (1 = win, 0 = no win), then update the game baord
game_guess(guess, o_phrase, h_o_phrase, &win);
game_makeBoard(h_my_phrase, h_o_phrase, board);
fprintf(stdout, "Your phrase: %s\n\n", my_phrase);
//Send the opponent what the user guessed
strcpy(buffer, guess);
send(clientSocket, buffer, strlen(buffer), 0);
//If the user won, then see if they want to play again
if (win == 1) {
game_playAgain(replay);
//Wants to play again
if (*replay == 1) {
strcpy(buffer, "stay");
send(clientSocket, buffer, strlen(buffer), 0);
win = 0;
break;
}
//Doesn't want to play again
else {
strcpy(buffer, "left");
send(clientSocket, buffer, strlen(buffer), 0);
//Reset SIGINT to its default functionality
signal(SIGINT, SIG_DFL);
return;
}
}
//Increment i allowing for the server to have a guess
i++;
}
}
//Close the final listen socket (never occurs)
close(myListenSocket);
}
