From f1572007b4abc4cba2a834095c84e731562926b8 Mon Sep 17 00:00:00 2001
From: cloudwalk <cloudwalk@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Tue, 29 Sep 2020 19:19:09 +0000
Subject: [PATCH] sv_save: Add new hooks to reduce client code in server
 savegame code.

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12974 d7cf8633-e32d-0410-b094-e92efae38249
---
 cl_main.c |  6 ++++++
 host.h    |  2 ++
 server.h  |  2 ++
 sv_main.c | 36 ++++++++++++++++++++++++++++++++++++
 sv_save.c | 19 ++-----------------
 5 files changed, 48 insertions(+), 17 deletions(-)

diff --git a/cl_main.c b/cl_main.c
index 69f8e622..3f24ce7b 100644
--- a/cl_main.c
+++ b/cl_main.c
@@ -572,6 +572,11 @@ static void CL_EstablishConnection_Local(void)
 		CL_EstablishConnection("local:1", -2);
 }
 
+static qbool CL_Intermission(void)
+{
+	return cl.intermission;
+}
+
 /*
 ==============
 CL_PrintEntities_f
@@ -3055,5 +3060,6 @@ void CL_Init (void)
 		CL_Video_Init();
 
 		host.hook.ConnectLocal = CL_EstablishConnection_Local;
+		host.hook.CL_Intermission = CL_Intermission;
 	}
 }
diff --git a/host.h b/host.h
index 4d0ee339..5b6f51d2 100644
--- a/host.h
+++ b/host.h
@@ -29,6 +29,8 @@ typedef struct host_s
 	struct
 	{
 		void (*ConnectLocal)(void);
+		qbool (*CL_Intermission)(void); // Quake compatibility
+		qbool (*SV_CanSave)(void); // Quake compatibility
 	} hook;
 } host_t;
 
diff --git a/server.h b/server.h
index 60c5b757..0df1b40a 100644
--- a/server.h
+++ b/server.h
@@ -515,6 +515,8 @@ void SV_Init (void);
 double SV_Frame(double time);
 void SV_Shutdown(void);
 
+int SV_IsLocalGame(void);
+
 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count);
 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate);
 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation, qbool reliable, float speed);
diff --git a/sv_main.c b/sv_main.c
index 3bedf609..867c0bdf 100644
--- a/sv_main.c
+++ b/sv_main.c
@@ -432,6 +432,30 @@ static void SV_AreaStats_f(cmd_state_t *cmd)
 	World_PrintAreaStats(&sv.world, "server");
 }
 
+static qbool SV_CanSave(void)
+{
+	prvm_prog_t *prog = SVVM_prog;
+	if(SV_IsLocalGame() == 1)
+	{
+		// singleplayer checks
+		if (!(svs.clients[0].active && PRVM_serveredictfloat(svs.clients[0].edict, deadflag)))
+		{
+			Con_Print("Can't savegame with a dead player\n");
+			return false;
+		}
+
+		if(!host.hook.CL_Intermission || !host.hook.CL_Intermission())
+		{
+			Con_Print("Can't save in intermission.\n");
+			return false;
+		}
+	}
+	else
+		Con_Print(CON_WARN "Warning: saving a multiplayer game may have strange results when restored (to properly resume, all players must join in the same player slots and then the game can be reloaded).\n");
+	return true;
+	
+}
+
 /*
 ===============
 SV_Init
@@ -632,6 +656,7 @@ void SV_Init (void)
 	Cvar_RegisterVariable (&sv_mapformat_is_quake3);
 
 	SV_InitOperatorCommands();
+	host.hook.SV_CanSave = SV_CanSave;
 
 	sv_mempool = Mem_AllocPool("server", 0, NULL);
 }
@@ -1989,6 +2014,17 @@ void SV_SpawnServer (const char *map)
 //	SV_UnlockThreadMutex();
 }
 
+/*
+ * Returns number of slots if we're a listen server.
+ * Returns 0 if we're a dedicated server.
+ */
+int SV_IsLocalGame(void)
+{
+	if (sv.active && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
+		return svs.maxclients;
+	return 0;
+}
+
 /*
 ==================
 SV_Shutdown
diff --git a/sv_save.c b/sv_save.c
index 3c7940b8..a08e33a5 100644
--- a/sv_save.c
+++ b/sv_save.c
@@ -185,7 +185,6 @@ void SV_Savegame_f(cmd_state_t *cmd)
 {
 	prvm_prog_t *prog = SVVM_prog;
 	char	name[MAX_QPATH];
-	qbool deadflag = false;
 
 	if (!sv.active)
 	{
@@ -193,25 +192,11 @@ void SV_Savegame_f(cmd_state_t *cmd)
 		return;
 	}
 
-	deadflag = cl.islocalgame && svs.clients[0].active && PRVM_serveredictfloat(svs.clients[0].edict, deadflag);
-
-	if (cl.islocalgame)
+	if(host.hook.SV_CanSave)
 	{
-		// singleplayer checks
-		if (cl.intermission)
-		{
-			Con_Print("Can't save in intermission.\n");
-			return;
-		}
-
-		if (deadflag)
-		{
-			Con_Print("Can't savegame with a dead player\n");
+		if(!host.hook.SV_CanSave())
 			return;
-		}
 	}
-	else
-		Con_Print(CON_WARN "Warning: saving a multiplayer game may have strange results when restored (to properly resume, all players must join in the same player slots and then the game can be reloaded).\n");
 
 	if (Cmd_Argc(cmd) != 2)
 	{
-- 
2.39.2