Trim edict on load : add old savegame compatibility workaround

Quake/host_cmd.c

@@ -417,7 +417,7 @@ Host_Status_f
 */
 static void Host_Status_f (void)
 {
-	void (*print_fn) (const char *fmt, ...) FUNCP_PRINTF (1, 2);
+	void	  (*print_fn) (const char *fmt, ...) FUNCP_PRINTF (1, 2);
 	client_t *client;
 	int		  seconds;
 	int		  minutes;
@@ -1156,9 +1156,12 @@ static void Host_Savegame_f (void)
 	for (i = 0; i < qcvm->num_edicts; i++)
 	{
 		ED_Write (f, EDICT_NUM (i));
-		fflush (f);
 	}
 
+	// padding to min with 'free' edicts for savegame compatibility
+	for (; i < qcvm->min_edicts; i++)
+		fprintf (f, "{\n}\n");
+
 	// add extra info (lightstyles, precaches, etc) in a way that's supposed to be compatible with DP.
 	// sidenote - this provides extended lightstyles and support for late precaches
 	// it does NOT protect against spawnfunc precache changes - we would need to include makestatics here too (and optionally baselines, or just recalculate

Quake/progs.h

@@ -378,6 +378,7 @@ struct qcvm_s
 	int				 num_edicts;
 	int				 reserved_edicts;
 	int				 max_edicts;
+	int				 min_edicts; // for savegame compatibility
 	edict_t			*edicts; // can NOT be array indexed, because edict_t is variable sized, but can be used to reference the world ent
 	edict_t			*free_edicts_head;
 	edict_t			*free_edicts_tail;

Quake/sv_main.c

@@ -3251,6 +3251,7 @@ void SV_SpawnServer (const char *server)
 
 	// create a baseline for more efficient communications
 	SV_CreateBaseline ();
+	qcvm->min_edicts = qcvm->num_edicts;
 
 	// johnfitz -- warn if signon buffer larger than standard server can handle
 	if (sv.signon.cursize > 8000 - 2) // max size that will fit into 8000-sized client->message buffer with 2 extra bytes on the end