DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CHAT)
{
if (this->status != STATUS_ACTIVE) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
char name[NETWORK_NAME_LENGTH], msg[NETWORK_CHAT_LENGTH];
const NetworkClientInfo *ci = NULL, *ci_to;
NetworkAction action = (NetworkAction)p->Recv_uint8();
ClientID client_id = (ClientID)p->Recv_uint32();
bool self_send = p->Recv_bool();
p->Recv_string(msg, NETWORK_CHAT_LENGTH);
int64 data = p->Recv_uint64();
ci_to = NetworkFindClientInfoFromClientID(client_id);
if (ci_to == NULL) return NETWORK_RECV_STATUS_OKAY;
/* Did we initiate the action locally? */
if (self_send) {
switch (action) {
case NETWORK_ACTION_CHAT_CLIENT:
/* For speaking to client we need the client-name */
snprintf(name, sizeof(name), "%s", ci_to->client_name);
ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
break;
/* For speaking to company or giving money, we need the company-name */
case NETWORK_ACTION_GIVE_MONEY:
if (!Company::IsValidID(ci_to->client_playas)) return NETWORK_RECV_STATUS_OKAY;
/* FALL THROUGH */
case NETWORK_ACTION_CHAT_COMPANY: {
StringID str = Company::IsValidID(ci_to->client_playas) ? STR_COMPANY_NAME : STR_NETWORK_SPECTATORS;
SetDParam(0, ci_to->client_playas);
GetString(name, str, lastof(name));
ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
break;
}
default: return NETWORK_RECV_STATUS_MALFORMED_PACKET;
}
} else {
/* Display message from somebody else */
snprintf(name, sizeof(name), "%s", ci_to->client_name);
ci = ci_to;
}
if (ci != NULL) {
NetworkTextMessage(action, GetDrawStringCompanyColour(ci->client_playas), self_send, name, msg, data);
}
return NETWORK_RECV_STATUS_OKAY;
}
DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_MOVE)
{
if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
/* Nothing more in this packet... */
ClientID client_id = (ClientID)p->Recv_uint32();
CompanyID company_id = (CompanyID)p->Recv_uint8();
if (client_id == 0) {
/* definitely an invalid client id, debug message and do nothing. */
DEBUG(net, 0, "[move] received invalid client index = 0");
return NETWORK_RECV_STATUS_MALFORMED_PACKET;
}
const NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
/* Just make sure we do not try to use a client_index that does not exist */
if (ci == NULL) return NETWORK_RECV_STATUS_OKAY;
/* if not valid player, force spectator, else check player exists */
if (!Company::IsValidID(company_id)) company_id = COMPANY_SPECTATOR;
if (client_id == _network_own_client_id) {
SetLocalCompany(company_id);
}
return NETWORK_RECV_STATUS_OKAY;
}
virtual void DrawWidget(const Rect &r, int widget) const
{
if (widget != NWCW_DESTINATION) return;
if (this->dtype == DESTTYPE_CLIENT) {
SetDParamStr(0, NetworkFindClientInfoFromClientID((ClientID)this->dest)->client_name);
}
DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, this->dest_string, TC_BLACK, SA_RIGHT);
}
virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
{
if (widget != NWCW_DESTINATION) return;
if (this->dtype == DESTTYPE_CLIENT) {
SetDParamStr(0, NetworkFindClientInfoFromClientID((ClientID)this->dest)->client_name);
}
Dimension d = GetStringBoundingBox(this->dest_string);
d.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
*size = maxdim(*size, d);
}
/* This packet contains info about the client (playas and name)
* as client we save this in NetworkClientInfo, linked via 'client_id'
* which is always an unique number on a server. */
DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_CLIENT_INFO)
{
NetworkClientInfo *ci;
ClientID client_id = (ClientID)p->Recv_uint32();
CompanyID playas = (CompanyID)p->Recv_uint8();
char name[NETWORK_NAME_LENGTH];
p->Recv_string(name, sizeof(name));
if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
if (this->HasClientQuit()) return NETWORK_RECV_STATUS_CONN_LOST;
ci = NetworkFindClientInfoFromClientID(client_id);
if (ci != NULL) {
if (playas == ci->client_playas && strcmp(name, ci->client_name) != 0) {
/* Client name changed, display the change */
NetworkTextMessage(NETWORK_ACTION_NAME_CHANGE, CC_DEFAULT, false, ci->client_name, name);
} else if (playas != ci->client_playas) {
/* The client changed from client-player..
* Do not display that for now */
}
/* Make sure we're in the company the server tells us to be in,
* for the rare case that we get moved while joining. */
if (client_id == _network_own_client_id) SetLocalCompany(!Company::IsValidID(playas) ? COMPANY_SPECTATOR : playas);
ci->client_playas = playas;
strecpy(ci->client_name, name, lastof(ci->client_name));
SetWindowDirty(WC_CLIENT_LIST, 0);
return NETWORK_RECV_STATUS_OKAY;
}
/* There are at most as many ClientInfo as ClientSocket objects in a
* server. Having more Infos than a server can have means something
* has gone wrong somewhere, i.e. the server has more Infos than it
* has actual clients. That means the server is feeding us an invalid
* state. So, bail out! This server is broken. */
if (!NetworkClientInfo::CanAllocateItem()) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
/* We don't have this client_id yet, find an empty client_id, and put the data there */
ci = new NetworkClientInfo(client_id);
ci->client_playas = playas;
if (client_id == _network_own_client_id) this->SetInfo(ci);
strecpy(ci->client_name, name, lastof(ci->client_name));
SetWindowDirty(WC_CLIENT_LIST, 0);
return NETWORK_RECV_STATUS_OKAY;
}
DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_JOIN)
{
if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
ClientID client_id = (ClientID)p->Recv_uint32();
NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
if (ci != NULL) {
NetworkTextMessage(NETWORK_ACTION_JOIN, CC_DEFAULT, false, ci->client_name);
}
SetWindowDirty(WC_CLIENT_LIST, 0);
return NETWORK_RECV_STATUS_OKAY;
}
DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_ERROR_QUIT)
{
if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
ClientID client_id = (ClientID)p->Recv_uint32();
NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
if (ci != NULL) {
NetworkTextMessage(NETWORK_ACTION_LEAVE, CC_DEFAULT, false, ci->client_name, NULL, GetNetworkErrorMsg((NetworkErrorCode)p->Recv_uint8()));
delete ci;
}
SetWindowDirty(WC_CLIENT_LIST, 0);
return NETWORK_RECV_STATUS_OKAY;
}
DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_QUIT)
{
if (this->status < STATUS_AUTHORIZED) return NETWORK_RECV_STATUS_MALFORMED_PACKET;
ClientID client_id = (ClientID)p->Recv_uint32();
NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(client_id);
if (ci != NULL) {
NetworkTextMessage(NETWORK_ACTION_LEAVE, CC_DEFAULT, false, ci->client_name, NULL, STR_NETWORK_MESSAGE_CLIENT_LEAVING);
delete ci;
} else {
DEBUG(net, 0, "Unknown client (%d) is leaving the game", client_id);
}
SetWindowDirty(WC_CLIENT_LIST, 0);
/* If we come here it means we could not locate the client.. strange :s */
return NETWORK_RECV_STATUS_OKAY;
}
void NetworkUpdateClientName()
{
NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(_network_own_client_id);
if (ci == NULL) return;
/* Don't change the name if it is the same as the old name */
if (strcmp(ci->client_name, _settings_client.network.client_name) != 0) {
if (!_network_server) {
MyClient::SendSetName(_settings_client.network.client_name);
} else {
if (NetworkFindName(_settings_client.network.client_name)) {
NetworkTextMessage(NETWORK_ACTION_NAME_CHANGE, CC_DEFAULT, false, ci->client_name, _settings_client.network.client_name);
strecpy(ci->client_name, _settings_client.network.client_name, lastof(ci->client_name));
NetworkUpdateClientInfo(CLIENT_ID_SERVER);
}
}
}
}
/** Control the companies: add, delete, etc.
* @param tile unused
* @param flags operation to perform
* @param p1 various functionality
* - p1 = 0 - create a new company, Which company (network) it will be is in p2
* - p1 = 1 - create a new AI company
* - p1 = 2 - delete a company. Company is identified by p2
* @param p2 various functionality, dictated by p1
* - p1 = 0 - ClientID of the newly created client
* - p1 = 1 - CompanyID to start AI (INVALID_COMPANY for first available)
* - p1 = 2 - CompanyID of the that is getting deleted
* @param text unused
* @return the cost of this operation or an error
*
* @todo In the case of p1=0, create new company, the clientID of the new client is in parameter
* p2. This parameter is passed in at function DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMMAND)
* on the server itself. First of all this is unbelievably ugly; second of all, well,
* it IS ugly! <b>Someone fix this up :)</b> So where to fix?@n
* @arg - network_server.c:838 DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMMAND)@n
* @arg - network_client.c:536 DEF_CLIENT_RECEIVE_COMMAND(PACKET_SERVER_MAP) from where the map has been received
*/
CommandCost CmdCompanyCtrl(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
switch (p1) {
case 0: { // Create a new company
/* This command is only executed in a multiplayer game */
if (!_networking) return CMD_ERROR;
#ifdef ENABLE_NETWORK
/* Joining Client:
* _local_company: COMPANY_SPECTATOR
* cid = clientid
*
* Other client(s)/server:
* _local_company: what they play as
* cid = requested company/company of joining client */
ClientID cid = (ClientID)p2;
/* Has the network client a correct ClientIndex? */
if (!(flags & DC_EXEC)) return CommandCost();
NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(cid);
if (ci == NULL) return CommandCost();
/* Delete multiplayer progress bar */
DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
Company *c = DoStartupNewCompany(false);
/* A new company could not be created, revert to being a spectator */
if (c == NULL) {
if (_network_server) {
ci->client_playas = COMPANY_SPECTATOR;
NetworkUpdateClientInfo(ci->client_id);
}
break;
}
/* This is the client (or non-dedicated server) who wants a new company */
if (cid == _network_own_client_id) {
assert(_local_company == COMPANY_SPECTATOR);
SetLocalCompany(c->index);
if (!StrEmpty(_settings_client.network.default_company_pass)) {
NetworkChangeCompanyPassword(_settings_client.network.default_company_pass);
}
/* Now that we have a new company, broadcast our company settings to
* all clients so everything is in sync */
SyncCompanySettings();
MarkWholeScreenDirty();
}
if (_network_server) {
/* XXX - UGLY! p2 (pid) is mis-used to fetch the client-id, done at
* server side in network_server.c:838, function
* DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMMAND) */
CompanyID old_playas = ci->client_playas;
ci->client_playas = c->index;
NetworkUpdateClientInfo(ci->client_id);
if (Company::IsValidID(ci->client_playas)) {
_network_company_states[c->index].months_empty = 0;
_network_company_states[c->index].password[0] = '\0';
NetworkServerUpdateCompanyPassworded(ci->client_playas, false);
/* XXX - When a client joins, we automatically set its name to the
* client's name (for some reason). As it stands now only the server
* knows the client's name, so it needs to send out a "broadcast" to
* do this. To achieve this we send a network command. However, it
* uses _local_company to execute the command as. To prevent abuse
* (eg. only yourself can change your name/company), we 'cheat' by
* impersonation _local_company as the server. Not the best solution;
* but it works.
* TODO: Perhaps this could be improved by when the client is ready
* with joining to let it send itself the command, and not the server?
* For example in network_client.c:534? */
NetworkSend_Command(0, 0, 0, CMD_RENAME_PRESIDENT, NULL, ci->client_name, ci->client_playas);
}
/* Announce new company on network, if the client was a SPECTATOR before */
if (old_playas == COMPANY_SPECTATOR) {
NetworkServerSendChat(NETWORK_ACTION_COMPANY_NEW, DESTTYPE_BROADCAST, 0, "", ci->client_id, ci->client_playas + 1);
}
}
#endif /* ENABLE_NETWORK */
} break;
case 1: // Make a new AI company
if (!(flags & DC_EXEC)) return CommandCost();
if (p2 != INVALID_COMPANY && (p2 >= MAX_COMPANIES || Company::IsValidID(p2))) return CMD_ERROR;
DoStartupNewCompany(true, (CompanyID)p2);
break;
case 2: { // Delete a company
Company *c = Company::GetIfValid(p2);
if (c == NULL) return CMD_ERROR;
if (!(flags & DC_EXEC)) return CommandCost();
/* Delete any open window of the company */
DeleteCompanyWindows(c->index);
CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
cni->FillData(c);
/* Show the bankrupt news */
SetDParam(0, STR_NEWS_COMPANY_BANKRUPT_TITLE);
SetDParam(1, STR_NEWS_COMPANY_BANKRUPT_DESCRIPTION);
SetDParamStr(2, cni->company_name);
AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_BANKRUPT, cni);
/* Remove the company */
ChangeOwnershipOfCompanyItems(c->index, INVALID_OWNER);
if (c->is_ai) AI::Stop(c->index);
CompanyID c_index = c->index;
delete c;
AI::BroadcastNewEvent(new AIEventCompanyBankrupt(c_index));
} break;
default: return CMD_ERROR;
}
return CommandCost();
}
