From b67807dd048e6053df523a91ffb7261ff97da8de Mon Sep 17 00:00:00 2001
From: James R <justsomejames2@gmail.com>
Date: Fri, 9 Oct 2020 16:22:17 -0700
Subject: [PATCH] When save/loading config use revert value for netvars if you
 are not the server

---
 src/command.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 77 insertions(+), 8 deletions(-)

diff --git a/src/command.c b/src/command.c
index c8f1aeccc..74c4789d1 100644
--- a/src/command.c
+++ b/src/command.c
@@ -1393,6 +1393,18 @@ static void Setvalue(consvar_t *var, const char *valstr, boolean stealth)
 			for (i = MAXVAL+1; var->PossibleValue[i].strvalue; i++)
 				if (v == var->PossibleValue[i].value || !stricmp(var->PossibleValue[i].strvalue, valstr))
 				{
+					if (client && execversion_enabled)
+					{
+						if (var->revert.allocated)
+						{
+							Z_Free(var->revert.v.string);
+						}
+
+						var->revert.v.const_munge = var->PossibleValue[i].strvalue;
+
+						return;
+					}
+
 					var->value = var->PossibleValue[i].value;
 					var->string = var->PossibleValue[i].strvalue;
 					goto finish;
@@ -1453,12 +1465,36 @@ static void Setvalue(consvar_t *var, const char *valstr, boolean stealth)
 			// ...or not.
 			goto badinput;
 found:
+			if (client && execversion_enabled)
+			{
+				if (var->revert.allocated)
+				{
+					Z_Free(var->revert.v.string);
+				}
+
+				var->revert.v.const_munge = var->PossibleValue[i].strvalue;
+
+				return;
+			}
+
 			var->value = var->PossibleValue[i].value;
 			var->string = var->PossibleValue[i].strvalue;
 			goto finish;
 		}
 	}
 
+	if (client && execversion_enabled)
+	{
+		if (var->revert.allocated)
+		{
+			Z_Free(var->revert.v.string);
+		}
+
+		var->revert.v.string = Z_StrDup(valstr);
+
+		return;
+	}
+
 	// free the old value string
 	Z_Free(var->zstring);
 
@@ -1796,6 +1832,14 @@ static void CV_SetCVar(consvar_t *var, const char *value, boolean stealth)
 		// send the value of the variable
 		UINT8 buf[128];
 		UINT8 *p = buf;
+
+		// Loading from a config in a netgame? Set revert value.
+		if (client && execversion_enabled)
+		{
+			Setvalue(var, value, true);
+			return;
+		}
+
 		if (!(server || (addedtogame && IsPlayerAdmin(consoleplayer))))
 		{
 			CONS_Printf(M_GetText("Only the server or admin can change: %s %s\n"), var->name, var->string);
@@ -2329,18 +2373,43 @@ void CV_SaveVariables(FILE *f)
 		{
 			char stringtowrite[MAXTEXTCMD+1];
 
-			// Silly hack for Min/Max vars
-			if (!strcmp(cvar->string, "MAX") || !strcmp(cvar->string, "MIN"))
+			const char * string;
+
+			if (cvar->revert.v.string != NULL)
 			{
-				if (cvar->flags & CV_FLOAT)
-					sprintf(stringtowrite, "%f", FIXED_TO_FLOAT(cvar->value));
-				else
-					sprintf(stringtowrite, "%d", cvar->value);
+				string = cvar->revert.v.string;
 			}
 			else
-				strcpy(stringtowrite, cvar->string);
+			{
+				string = cvar->string;
+			}
 
-			fprintf(f, "%s \"%s\"\n", cvar->name, stringtowrite);
+			// Silly hack for Min/Max vars
+#define MINVAL 0
+#define MAXVAL 1
+			if (
+					cvar->PossibleValue != NULL &&
+					cvar->PossibleValue[0].strvalue &&
+					stricmp(cvar->PossibleValue[0].strvalue, "MIN") == 0
+			){ // bounded cvar
+				int which = stricmp(string, "MAX") == 0;
+
+				if (which || stricmp(string, "MIN") == 0)
+				{
+					INT32 value = cvar->PossibleValue[which].value;
+
+					if (cvar->flags & CV_FLOAT)
+						sprintf(stringtowrite, "%f", FIXED_TO_FLOAT(value));
+					else
+						sprintf(stringtowrite, "%d", value);
+
+					string = stringtowrite;
+				}
+			}
+#undef MINVAL
+#undef MAXVAL
+
+			fprintf(f, "%s \"%s\"\n", cvar->name, string);
 		}
 }