Add a VGuiVscropt function

1. Add a client side vscript function void ForceSync() to CRD_VGui_VScript. This function discards all client predictions and force syncing with server.
2. Update traitors challenge to prevent frequently spawning vgui entities for data syncing.

Author: ywgATustcbbs

reactivedrop/content/traitors_challenge/scripts/vscripts/challenge_traitors.nut

@@ -408,19 +408,18 @@ function RefreshMenu(hMarine) {
 	foreach(tempMarine in g_marine_Total_Unshuffled) {
 		i++;
 		local strVGuiRefresh = "VGui_Refresh" + i.tostring();
-		local hVGuiRefresh = Entities.FindByName(null, strVGuiRefresh);
-		if (hVGuiRefresh != null) {
-			hVGuiRefresh.Destroy();
-		}
-		hVGuiRefresh = Entities.CreateByClassname("rd_vgui_vscript");
-		hVGuiRefresh.__KeyValueFromString("client_vscript", "challenge_traitors_client_refresh_menu.nut");
-		hVGuiRefresh.ValidateScriptScope();
-		hVGuiRefresh.GetScriptScope().Input <- Input;
-		hVGuiRefresh.Spawn();
-		hVGuiRefresh.SetName(strVGuiRefresh);
-		hVGuiRefresh.Activate();
-		hVGuiRefresh.SetEntity(0, hMarine);
-		hVGuiRefresh.SetInteracter(null);
+		local hVGuiRefresh = null;
+		if (!(hVGuiRefresh = Entities.FindByName(hVGuiRefresh, strVGuiRefresh))) {
+			hVGuiRefresh = Entities.CreateByClassname("rd_vgui_vscript");
+			hVGuiRefresh.__KeyValueFromString("client_vscript", "challenge_traitors_client_refresh_menu.nut");
+			hVGuiRefresh.ValidateScriptScope();
+			hVGuiRefresh.GetScriptScope().Input <- Input;
+			hVGuiRefresh.Spawn();
+			hVGuiRefresh.SetName(strVGuiRefresh);
+			hVGuiRefresh.Activate();
+			hVGuiRefresh.SetEntity(0, hMarine);
+			hVGuiRefresh.SetInteracter(null);
+		}
 
 		hVGuiRefresh.SetInt(0, i);
 		hVGuiRefresh.SetInt(1, (g_lst_MenuProps[i].scannerIsRevealed) ? g_lst_MenuProps[i].role : ROLE.NONE);

reactivedrop/content/traitors_challenge/scripts/vscripts/challenge_traitors_client_refresh_menu.nut

@@ -18,6 +18,7 @@ function Paint() {}
 function Control(tbl) {}
 
 function OnUpdate() {
+	self.ForceSync();
 	local idx = self.GetInt(0);
 	if (!("marine_info" in getconsttable())) {
 		getconsttable()["marine_info"] <- [];

src/game/shared/swarm/rd_vgui_vscript_shared.cpp

@@ -47,6 +47,7 @@ END_NETWORK_TABLE();
 
 BEGIN_ENT_SCRIPTDESC( CRD_VGui_VScript, CRD_HUD_VScript, "Alien Swarm: Reactive Drop scriptable interactive UI" )
 #ifdef CLIENT_DLL
+	DEFINE_SCRIPTFUNC( ForceSync, "Discard all client predictions and force syncing with server." )
 	DEFINE_SCRIPTFUNC( SendInput, "Sends a numeric input to the server." )
 	DEFINE_SCRIPTFUNC( SetEntity, "Predict a change to the value of an entity parameter. (Only during Input.)" )
 	DEFINE_SCRIPTFUNC( SetInt, "Predict a change to the value of an integer parameter. (Only during Input.)" )
@@ -224,6 +225,12 @@ CRD_VGui_VScript::~CRD_VGui_VScript()
 }
 
 #ifdef CLIENT_DLL
+
+inline void CRD_VGui_VScript::ForceSync()
+{
+	ResetPrediction();
+}
+
 void CRD_VGui_VScript::SendInput( int value )
 {
 	if ( !m_bIsControlling )

src/game/shared/swarm/rd_vgui_vscript_shared.h

@@ -25,6 +25,7 @@ class CRD_VGui_VScript : public CRD_HUD_VScript
 #ifdef CLIENT_DLL
 	static CUtlVector<CRD_VGui_VScript *> s_InteractiveHUDEntities;
 
+	void ForceSync();
 	void SendInput( int value );
 	void SetEntity( int i, HSCRIPT entity );
 	void SetInt( int i, int value );