1 files changed, 9 insertions, 1 deletions
diff --git a/src/d_loop.h b/src/d_loop.h
index 7eed035b..4e0d8625 100644
--- a/src/d_loop.h
+++ b/src/d_loop.h
@@ -29,6 +29,13 @@
 
 #include "net_defs.h"
 
+// Callback function invoked while waiting for the netgame to start.
+// The callback is invoked when new players are ready. The callback
+// should return true, or return false to abort startup.
+
+typedef boolean (*netgame_startup_callback_t)(int ready_players,
+                                              int num_players);
+
 typedef struct
 {
     // Read events from the event queue, and process them.
@@ -72,7 +79,8 @@ boolean D_InitNetGame(net_connect_data_t *connect_data);
 // Start game with specified settings. The structure will be updated
 // with the actual settings for the game.
 
-void D_StartNetGame(net_gamesettings_t *settings);
+void D_StartNetGame(net_gamesettings_t *settings,
+                    netgame_startup_callback_t callback);
 
 extern boolean singletics;
 extern int gametic, ticdup;