Server: Only send node removal/addition to client if client's player is near it....

diff --git a/src/server.cpp b/src/server.cpp
index 9b3e6e3ec0a2d55693eb54afcdacb38ed1fdfe50..77c93102670aef114518d446592a7427d2446233 100644 (file)
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -2100,9 +2100,12 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        }
                        
                        /*
-                               Send the removal to all other clients
+                               Send the removal to all other clients.
+                               - If other player is close, send REMOVENODE
+                               - Otherwise set blocks not sent
                        */
-                       sendRemoveNode(p_under, peer_id);
+                       core::list<u16> far_players;
+                       sendRemoveNode(p_under, peer_id, &far_players, 100);
                        
                        /*
                                Update and send inventory
@@ -2179,6 +2182,20 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        m_ignore_map_edit_events = true;
                        m_env.getMap().removeNodeAndUpdate(p_under, modified_blocks);
                        m_ignore_map_edit_events = false;
+                       
+                       /*
+                               Set blocks not sent to far players
+                       */
+                       for(core::list<u16>::Iterator
+                                       i = far_players.begin();
+                                       i != far_players.end(); i++)
+                       {
+                               u16 peer_id = *i;
+                               RemoteClient *client = getClient(peer_id);
+                               if(client==NULL)
+                                       continue;
+                               client->SetBlocksNotSent(modified_blocks);
+                       }
                }
                
                /*
@@ -2243,7 +2260,8 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                /*
                                        Send to all players
                                */
-                               sendAddNode(p_over, n, 0);
+                               core::list<u16> far_players;
+                               sendAddNode(p_over, n, 0, &far_players, 100);
                                
                                /*
                                        Handle inventory
@@ -2270,6 +2288,20 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                m_env.getMap().addNodeAndUpdate(p_over, n, modified_blocks);
                                m_ignore_map_edit_events = false;
                                
+                               /*
+                                       Set blocks not sent to far players
+                               */
+                               for(core::list<u16>::Iterator
+                                               i = far_players.begin();
+                                               i != far_players.end(); i++)
+                               {
+                                       u16 peer_id = *i;
+                                       RemoteClient *client = getClient(peer_id);
+                                       if(client==NULL)
+                                               continue;
+                                       client->SetBlocksNotSent(modified_blocks);
+                               }
+
                                /*
                                        Calculate special events
                                */
@@ -3306,8 +3338,12 @@ void Server::BroadcastChatMessage(const std::wstring &message)
        }
 }
 
-void Server::sendRemoveNode(v3s16 p, u16 ignore_id)
+void Server::sendRemoveNode(v3s16 p, u16 ignore_id,
+       core::list<u16> *far_players, float far_d_nodes)
 {
+       float maxd = far_d_nodes*BS;
+       v3f p_f = intToFloat(p, BS);
+
        // Create packet
        u32 replysize = 8;
        SharedBuffer<u8> reply(replysize);
@@ -3329,14 +3365,34 @@ void Server::sendRemoveNode(v3s16 p, u16 ignore_id)
                // Don't send if it's the same one
                if(client->peer_id == ignore_id)
                        continue;
+               
+               if(far_players)
+               {
+                       // Get player
+                       Player *player = m_env.getPlayer(client->peer_id);
+                       if(player)
+                       {
+                               // If player is far away, only set modified blocks not sent
+                               v3f player_pos = player->getPosition();
+                               if(player_pos.getDistanceFrom(p_f) > maxd)
+                               {
+                                       far_players->push_back(client->peer_id);
+                                       continue;
+                               }
+                       }
+               }
 
                // Send as reliable
                m_con.Send(client->peer_id, 0, reply, true);
        }
 }
 
-void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id)
+void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id,
+               core::list<u16> *far_players, float far_d_nodes)
 {
+       float maxd = far_d_nodes*BS;
+       v3f p_f = intToFloat(p, BS);
+
        for(core::map<u16, RemoteClient*>::Iterator
                i = m_clients.getIterator();
                i.atEnd() == false; i++)
@@ -3351,6 +3407,22 @@ void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id)
                if(client->peer_id == ignore_id)
                        continue;
 
+               if(far_players)
+               {
+                       // Get player
+                       Player *player = m_env.getPlayer(client->peer_id);
+                       if(player)
+                       {
+                               // If player is far away, only set modified blocks not sent
+                               v3f player_pos = player->getPosition();
+                               if(player_pos.getDistanceFrom(p_f) > maxd)
+                               {
+                                       far_players->push_back(client->peer_id);
+                                       continue;
+                               }
+                       }
+               }
+
                // Create packet
                u32 replysize = 8 + MapNode::serializedLength(client->serialization_version);
                SharedBuffer<u8> reply(replysize);

diff --git a/src/server.h b/src/server.h
index f1c7b6e01cdc1b333b23713ef85dece373caab6f..4a757ad73d9b552f9131f3aa4fc99d513ae0a6a5 100644 (file)
--- a/src/server.h
+++ b/src/server.h
@@ -403,8 +403,15 @@ class Server : public con::PeerHandler, public MapEventReceiver,
        void SendInventory(u16 peer_id);
        void SendChatMessage(u16 peer_id, const std::wstring &message);
        void BroadcastChatMessage(const std::wstring &message);
-       void sendRemoveNode(v3s16 p, u16 ignore_id=0);
-       void sendAddNode(v3s16 p, MapNode n, u16 ignore_id=0);
+       /*
+               Send a node removal/addition event to all clients except ignore_id.
+               Additionally, if far_players!=NULL, players further away than
+               far_d_nodes are ignored and their peer_ids are added to far_players
+       */
+       void sendRemoveNode(v3s16 p, u16 ignore_id=0,
+                       core::list<u16> *far_players=NULL, float far_d_nodes=100);
+       void sendAddNode(v3s16 p, MapNode n, u16 ignore_id=0,
+                       core::list<u16> *far_players=NULL, float far_d_nodes=100);
        
        // Environment and Connection must be locked when  called
        void SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver);