void LocalClient::ListenTaskThread::handle_current_packet() {
PTCLHEADERDATA header;
protocol_get_header_data(buffer, &header);
if (header.protocol_id != PROTOCOL_ID) {
PRINT( "dropping packet. Reason: protocol_id mismatch (%d)\n", header.protocol_id);
return;
}
if (header.sender_id != ID_SERVER) {
//PRINT( "unexpected sender id. expected ID_SERVER (%x), got %x instead.\n", ID_SERVER, sender_id);
return;
}
const unsigned char &cmd = header.cmd_arg_mask.ch[0];
switch (cmd) {
case S_POSITION_UPDATE:
// don't apply older pupd-package data. we also have an interpolation mechanism :P
if (header.seq_number > latest_posupd_seq_number) {
update_positions();
latest_posupd_seq_number = header.seq_number;
}
break;
case S_PONG: {
latency_ms = LocalClient::Ping.time_since_last_ping_ms();
unsigned embedded_seq_number;
copy_from_buffer(&embedded_seq_number, sizeof(embedded_seq_number), PTCL_HEADER_LENGTH);
if (embedded_seq_number != Ping._latest_ping_seq_number) {
PRINT("Received S_PONG from server, but the embedded seq_number (%u) doesn't match with the expected one (%d).\n", embedded_seq_number, Ping._latest_ping_seq_number);
}
Ping._latest_ping_seq_number = 0;
break;
}
case S_CLIENT_CHAT_MESSAGE: {
// the sender id is embedded into the datafield (bytes 12-14) of the packet
unsigned short sender_id = 0;
copy_from_buffer(&sender_id, sizeof(sender_id), PTCL_HEADER_LENGTH);
auto it = peers.find(sender_id);
if (it != peers.end()) {
std::string chatmsg(buffer + PTCL_HEADER_LENGTH + sizeof(sender_id));
if (!Server::is_running()) {
PRINT("[%s] <%s>: %s\n", get_timestamp().c_str(), it->second.info.name.c_str(), chatmsg.c_str());
}
}
else {
// perhaps request a new peer list from the server. :P
PRINT("warning: server broadcast S_CLIENT_CHAT_MESSAGE with unknown sender id %u!\n", sender_id);
}
break;
}
case S_SHUTDOWN:
PRINT( "Client: Received S_SHUTDOWN from server (server going down).\n");
LocalClient::request_shutdown(); // this will break from the recvfrom loop gracefully
// this will cause LocalClient::stop() to be called from the main (rendering) thread
break;
case C_TERMINATE:
PRINT("Client:Received C_TERMINATE from self. Stopping.\n");
LocalClient::request_shutdown();
break;
case S_PEER_LIST:
construct_peer_list();
break;
case S_CLIENT_DISCONNECT: {
unsigned short id;
copy_from_buffer(&id, sizeof(id), PTCL_HEADER_LENGTH);
auto it = peers.find(id);
if (it == peers.end()) {
//PRINT( "Warning: received S_CLIENT_DISCONNECT with unknown id %u.\n", id);
}
else {
PRINT( "Client %s (id %u) disconnected.\n", it->second.info.name.c_str(), id);
peers.erase(id);
}
break;
}
default:
PRINT("Warning: received unknown command char %u from server.\n", cmd);
break;
}
}
void ChatDlg::incomingMsg(std::string str)
{
QString chatmsg(str.c_str());
ui->textEdit_chat->appendPlainText(chatmsg);
}
