From a6f9773c358dd7d091ff64cbda504ab8d8066dd3 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Wed, 22 Sep 2010 21:32:34 +0000
Subject: full trading support for networked games

---
 src/core/netserver.cc | 97 ++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 92 insertions(+), 5 deletions(-)

(limited to 'src/core/netserver.cc')

diff --git a/src/core/netserver.cc b/src/core/netserver.cc
index 2d83728..8d3e762 100644
--- a/src/core/netserver.cc
+++ b/src/core/netserver.cc
@@ -15,8 +15,6 @@
 
 #include <netinet/in.h>
 #include <arpa/inet.h>
-#else
-#include <windows.h>
 #endif
 
 #include <iostream>
@@ -295,6 +293,10 @@ void NetServer::client_initialize(NetClient *client)
 	client->player()->send(welcome);
 	client->transmit();
 
+	// send info types	
+	send_infotypes(client);
+	client->transmit();
+	
 	// send zones
 	for (Zone::Registry::iterator it = Zone::registry().begin();  it != Zone::registry().end(); it++) {
 		send_zone_update(client, (*it).second);
@@ -377,6 +379,19 @@ void NetServer::client_frame(NetClient *client, unsigned long timestamp)
 		}
 	}
 
+	// send inventory update for control
+	// FIXME this should be done for all player assets
+	if (client->player()->control() && client->player()->control()->inventory() && client->player()->control()->inventory()->dirty()) {
+		//con_debug << "SERVER Sending inventory for entity " << client->player()->control()->id() << " server timestamp " << game()->timestamp() << std::endl;		
+		send_inventory_update(client, client->player()->control(), client->player()->control()->inventory()->timestamp());
+	}
+	
+	// send inventory updates for view
+	if (client->player()->view() && client->player()->view()->inventory() && client->player()->view()->inventory()->dirty()) {
+		//con_debug << "SERVER Sending inventory for entity " << client->player()->view()->id() << " server timestamp " << game()->timestamp() << std::endl;
+		send_inventory_update(client, client->player()->view(), client->player()->view()->inventory()->timestamp());
+	}
+	
 	// send updates for other players
 	for (GameInterface::Players::iterator it = server()->players().begin(); it != server()->players().end(); it++) {
 		if (((*it)->id() != client->player()->id()) && ((*it)->dirty())) {
@@ -429,6 +444,8 @@ void NetServer::frame(unsigned long timestamp)
  * frame <timestamp> <previous timestamp>
  * ent <id> <entity create data>
  * die <id> <entity data>
+ * inf <id>
+ * inv <id>
  * ping <timestamp>
  * sup <entity update data>
  *
@@ -571,6 +588,49 @@ void NetServer::send_info_update(NetClient *client, Info *info)
 	client->send_raw(msg.str());
 }
 
+// send "inf" info types
+void NetServer::send_infotypes(NetClient *client)
+{
+	std::ostringstream msg;
+	msg << "inf 0 " << InfoType::registry().size();
+	
+	for (InfoType::Registry::const_iterator it = InfoType::registry().begin(); it != InfoType::registry().end(); it++) {
+		msg << " \"" << (*it)->label() << "\"";
+	}
+	msg << '\n';
+	client->send_raw(msg.str());
+}
+
+// send a "inv" inventory update
+void NetServer::send_inventory_update(NetClient *client, Entity *entity, const unsigned long timestamp)
+{
+	if (!entity || !entity->inventory())
+		return;
+	
+	std::ostringstream msg;
+	msg << "inv " << entity->id() << " " << game()->timestamp() << " ";
+	
+	size_t nbitems = 0;
+	
+	std::ostringstream itemstr;
+	for (Inventory::Items::const_iterator it = entity->inventory()->items().begin(); it != entity->inventory()->items().end(); it++) {
+		const Item *item = (*it);
+		if (item->timestamp() >= timestamp) {
+			itemstr << item->info()->id() << " ";
+			item->serialize_server_update(itemstr);
+			nbitems++;
+		}
+	}
+	
+	msg << nbitems;
+	
+	if (nbitems) {
+		msg << " " << itemstr.str();
+	}
+	msg << '\n';
+	client->send_raw(msg.str());
+}
+
 // parse incoming client messages
 
 /**
@@ -584,8 +644,9 @@ void NetServer::send_info_update(NetClient *client, Info *info)
  * ping
  * say <text>
  * priv <player> <text>
- * info <id> <typelabel> <label>
+ * info <id>
  * req <id>
+ * inv <id>
  *
  */
 void NetServer::parse_incoming_message(NetClient *client, const std::string & message)
@@ -641,8 +702,7 @@ void NetServer::parse_incoming_message(NetClient *client, const std::string & me
 		std::string oldname(client->player()->name());
 		client->player()->receive_client_update(msgstream);
 
-		if (client->state() == NetClient::Pending) {
-
+		if (client->state() == NetClient::Pending) {	
 			client->client_state = NetClient::Connected;
 			server()->player_connect(client->player());
 
@@ -740,6 +800,33 @@ void NetServer::parse_incoming_message(NetClient *client, const std::string & me
 			}
 		}
 		return;
+		
+	} else if (command.compare("inv") == 0) {
+
+		// request information record
+		unsigned int id;
+		unsigned long client_timestamp;
+
+		if (!(msgstream >> id >> client_timestamp)) {
+			con_warn << "^B" << client->player()->name() << "^W invalid inventory request" << std::endl;
+			return;
+		}
+		
+		Entity *entity = Entity::find (id);
+		if (!entity) {
+			con_warn << "^B" << client->player()->name() << "^W invalid request for non-existing entity " << id << std::endl;
+			return;
+		}
+		if (!entity->inventory()) {
+			con_warn << "^B" << client->player()->name() << "^W invalid request for entity " << id << " without inventory" << std::endl;
+			return;
+		}
+		
+		//con_debug << "SERVER Sending inventory for entity " << id << " client timestamp " << client_timestamp << std::endl;
+		
+		send_inventory_update(client, entity, client_timestamp);
+		
+		client->transmit();		
 
 	} else if (command.compare("rcon") == 0) {
 		if ((message.size() > command.size() + 1) && Cvar::sv_password->str().size()) {
-- 
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