Exception with GetLocalizedText in Lua

[christianwiele]

Hi,

I try to get the localized display name of my actor, but I get an exception.

This is the Dialogue Text:
Are you [lua( GetLocalizedText("Actor", "Chief", "Display Name") )]?

And this is the exception:

Dialogue System: Lua code 'return GetLocalizedText("Actor", "Chief", "Display Name")' threw exception 'Tried to invoke a function call on a non-function value. If you're calling a function, is it registered with Lua?'

I thought this Lua function is part of the standard, or do I miss a component?

Thanks, Christian

[Tony Li]

Hi Christian,

It's part of the standard set of Lua functions, and I just verified that it works correctly in DS version 2.2.22. In DemoScene1, I set the Player actor's Display Name and added this text to the text of Private Hart's first line:

[lua( GetLocalizedText("Actor", "Player", "Display Name") )]

Are there any other prior errors or warnings in the Console?

If you temporarily set the Dialogue Manager's Other Settings > Debug Level to Info and reproduce the issue, does this line appear anywhere before the error?

Dialogue System: Unregistering Lua function 'GetLocalizedText'

Can you back up your project and try updating to version 2.2.22?

[christianwiele]

Hi Tony,

in the demo scene, all Lua functions are registered correctly. In my scene, there are several functions missing. All functions up to the debug entry 'Dialogue System: Loaded master database '' ' are registered. They are registered through the DialogueSystemController.

Dialogue System: Registering Lua function GetEntryBool
UnityEngine.Debug:Log (object)
PixelCrushers.DialogueSystem.Lua:RegisterFunction (string,object,System.Reflection.MethodInfo) (at Assets/Plugins/Pixel Crushers/Dialogue System/Scripts/Lua/Lua Wrapper/Lua Interpreter/Lua.cs:286)
PixelCrushers.DialogueSystem.DialogueSystemController:RegisterLuaFunctions () (at Assets/Plugins/Pixel Crushers/Dialogue System/Scripts/Manager/DialogueSystemController.cs:1947)
PixelCrushers.DialogueSystem.DialogueSystemController:Awake () (at Assets/Plugins/Pixel Crushers/Dialogue System/Scripts/Manager/DialogueSystemController.cs:417)


The functions that are missing come after that and are registered differently. They are somehow registered after some UI event, which is missing in my case:

Dialogue System: Registering Lua function GetLocalizedText
UnityEngine.Debug:Log (object)
PixelCrushers.DialogueSystem.Lua:RegisterFunction (string,object,System.Reflection.MethodInfo) (at Assets/Plugins/Pixel Crushers/Dialogue System/Scripts/Lua/Lua Wrapper/Lua Interpreter/Lua.cs:286)
PixelCrushers.DialogueSystem.DialogueLua:RegisterDialogueSystemFunctions () (at Assets/Plugins/Pixel Crushers/Dialogue System/Scripts/MVC/Model/Logic/DB/DialogueLua.cs:593)
PixelCrushers.DialogueSystem.DialogueLua:RegisterLuaFunctions () (at Assets/Plugins/Pixel Crushers/Dialogue System/Scripts/MVC/Model/Logic/DB/DialogueLua.cs:97)
PixelCrushers.DialogueSystem.DialogueLua/<RegisterLuaFunctionsAfterFrame>d__17:MoveNext () (at Assets/Plugins/Pixel Crushers/Dialogue System/Scripts/MVC/Model/Logic/DB/DialogueLua.cs:105)
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&) (at /Users/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)

And BTW, I am on 2.2.22

[Tony Li]

When you're playing in the editor, is the Game view visible?

Several Lua functions, including GetLocalizedText, wait for the end of the first frame to register. The Unity editor has a quirk where it never triggers the "end of frame" if the Game view is not visible.

[christianwiele]

Yes, the game view is visible. But it is quite a heavy scene to load.

[Tony Li]

Is the conversation configured to start as soon as the scene starts, like maybe in Awake, OnEnable, or Start? And, if so, is [lua(GetLocalizedText(...))] used in the first dialogue entry? I don't know that it would be a problem; I'm just trying to gather data.

Feel free at any point to send a reproduction project to tony (at) pixelcrushers.com if you like.

[christianwiele]

The conversation is started manually (using the UCC integration), and also starting a different conversation first makes no difference. It also occurs in the build, so it is no issue of the editor.

Which component triggers the registration?

[christianwiele]

I think I found the issue. I have a menu / lobby scene which has no Dialogue Manager, but the DialogueLua static class is already initialized in that scene without a corresponding Lua environment. How to fix this?

[Tony Li]

That should be fine. The Lua class (as in Lua.RegisterFunction) is static, too. I'll try to set up a reproduction scenario here today.

[christianwiele]

I checked that the functions are indeed registered in the lobby scene, and there are no unregistrations after that. Still, it says they are not registered when trying to access them.