movement packet loss tracking

[xonotic/darkplaces.git] / sv_user.c

diff --git a/sv_user.c b/sv_user.c
index 6d9a39d103bea67b4dbb088581d4827044d8db63..b545b8b9d8489073929092532ca563d987f2af9d 100644 (file)
--- a/sv_user.c
+++ b/sv_user.c
@@ -544,6 +544,35 @@ void SV_ReadClientMove (void)
        // (we have to buffer the moves because of old ones being repeated)
        if (sv_numreadmoves < CL_MAX_USERCMDS)
                sv_readmoves[sv_numreadmoves++] = *move;
+
+       // movement packet loss tracking
+       if(move->sequence)
+       {
+               if(move->sequence > host_client->movement_highestsequence_seen)
+               {
+                       if(host_client->movement_highestsequence_seen)
+                       {
+                               // mark moves in between as lost
+                               if(move->sequence - host_client->movement_highestsequence_seen < NETGRAPH_PACKETS)
+                                       for(i = host_client->movement_highestsequence_seen; i < move->sequence; ++i)
+                                               host_client->movement_count[i % NETGRAPH_PACKETS] = -1;
+                               else
+                                       memset(host_client->movement_count, -1, sizeof(host_client->movement_count));
+                       }
+                       // mark THIS move as seen for the first time
+                       host_client->movement_count[move->sequence % NETGRAPH_PACKETS] = 1;
+                       // update highest sequence seen
+                       host_client->movement_highestsequence_seen = move->sequence;
+               }
+               else
+                       if(host_client->movement_count[move->sequence % NETGRAPH_PACKETS] >= 0)
+                               ++host_client->movement_count[move->sequence % NETGRAPH_PACKETS];
+       }
+       else
+       {
+               host_client->movement_highestsequence_seen = 0;
+               memset(host_client->movement_count, 0, sizeof(host_client->movement_count));
+       }
 }
 
 void SV_ExecuteClientMoves(void)