[I can't add the button with image via c++]

if i remember correctly you need the GUI to initialize the image.

example:

logo = Widget::Panel( 0, 0, gui->GetBase()->GetClientSize().width, gui->GetBase()->GetClientSize().height, gui->GetBase());
logo->SetScript("Scripts/GUI/Custom/ImagePanel.lua");
Image* logoImg = gui->LoadImageA("Materials/Logo/leadwerks_logo.tex");
logo->SetImage(logoImg);
logo->Redraw();
logoImg->Release();

 

[I don't know how to process GUI responses]

using a global variable like that will result in undefined behaviour.
make sure you process each event before the while loop ends.

you would be better off to store a pointer to mudaLocalGui as global variable,
add a process function to your script,
and call it from your event loop. (remove the pointer after closing the menu  )

personally i would use some kind of guimanager script, instead of processing your events in Main.lua.
example of a gui manager:

import("Scripts/MainMenu.lua")
import("Scripts/GameMap.lua")
import("Scripts/GameGUI.lua")

function BuildGUIManager(context)
	local Manager = {}
	--
	Manager.gamemenu = BuildMenu(context, Manager)
	Manager.gamemenu:Show()
	--
	Manager.gamemap = BuildGameMap(context)
	Manager.gamemap:Hide()
	--
	Manager.gameui = BuildGameGUI(context, Manager)
	Manager.gameui:Hide()
	
	------------------------------------------------
	function Manager:MenuHidden()
		return self.gamemenu:Hidden()
	end
	function Manager:ShowGameMenu()
		self.gamemenu:Show()
		self.gameui:Hide()
	end
	function Manager:HideGameMenu()
		self.gameui:Show()
		self.gamemenu:Hide()
	end
	--
	function Manager:Update()
		--
		if self.gamemenu:Hidden() == false then self.gamemenu:Update() end
		if self.gamemap:Hidden() == false then self.gamemap:Update() end
		if self.gameui:Hidden() == false then self.gameui:Update() end
		--
		while EventQueue:Peek() do
			local event = EventQueue:Wait()
			local event_processed = false
			--process menu
			if self.gamemenu:Hidden() == false then
				if self.gamemenu:ProcessEvent(event) == false then
					--exit game
					return false
				end
			end
			--process map
			if self.gamemap:Hidden() == false then
				event_processed = self.gamemap:ProcessEvent(event)
			end
			--process ui
			if event_processed == false and self.gameui:Hidden() == false then
				self.gameui:ProcessEvent(event)
			end
		end
		--
		return true
	end
	--
	
	--
	return Manager
end

 

[How to know which key is pressed?]

i used to do something like this...

this will only add keyinfo to the Keys table when a key is actually used.
to make it work you would need to add a call to PreUpdate() in your main loop.
to check a key's state you would call eg: IsKeyUp(Key.W) or IsKeyDown(Key.W).

function SetKeyboardInfoPack()
	local pack = {
		Keys = {},
		--
		FlushKeyInfo = function (self, resetHit, key)
			if key ~= nil then
				local nHit = 0
				if self.Keys[key] ~= nil and resetHit == false then
					nHit = self.Keys[key].hit
				end
				self.Keys[key] = {down = false, up = false, hit = nHit}
			else 
				local nHit = 0
				for key,value in pairs(self.Keys) do 
					if resetHit == false then
						nHit = self.Keys[key].hit
					end
					self.Keys[key] = {down = false, up = false, hit = nHit}
				end
			end
		end,
		--
		PreUpdate = function (self)
			self:RefreshKeyStates()
		end,
		--
		IsKeyDown = function (self, key)
			--create a key record if not already exists and check the keystate
			if self.Keys[key] == nil then
				self.Keys[key] = {down = false, up = false, hit = 0}
				self:RefreshKey(key)
			end
			--return keystate
			return self.Keys[key].down
		end,
		--
		IsKeyUp = function (self, key)
			--create a key record if not already exists and check the keystate
			if self.Keys[key] == nil then
				self.Keys[key] = {down = false, up = false, hit = 0}
				self:RefreshKey(key)
			end
			--return keystate
			return self.Keys[key].up
		end,
		Keyhits = function (self, key)
			--create a key record if not already exists and check the keystate
			if self.Keys[key] == nil then
				self.Keys[key] = {down = false, up = false, hit = 0}
				self:RefreshKey(key)
			end
			--return keystate
			return self.Keys[key].hit
		end,
		--
		RefreshKeyStates = function (self)
			for key,value in pairs(self.Keys) do 
				self:RefreshKey(key)
			end
		end,
		RefreshKey = function (self, key)
			if key ~= nil then
				if self.Keys[key] ~= nil then
					if window:KeyDown(key) then
						self.Keys[key].down = true
						self.Keys[key].up = false
					elseif self.Keys[key].down == true then		--last state down
						self.Keys[key].down = false
						self.Keys[key].up = true
						self.Keys[key].hit = self.Keys[key].hit + 1
					elseif self.Keys[key].up == true then		--last state up
						self.Keys[key].down = false
						self.Keys[key].up = false
					end
				end
			end
		end
	}
	--
	return pack
end

 

[SetFloat Gui no work on Panel]

they all definitly work no doubt about it.

are you certain that the variable you try to read/write actually exists in the widget script??

i assume you are looking for.

widget:SetFloat("radius", 2);
widget:GetFloat("radius");

REMEMBER !!!
call widget:Redraw() when you change a variable's value.
often you would think "hey this does not work" while it usually does work but is not updated yet ?

[Anyone give me example of using Actor in CPP]

The BaseActor class i use to derive actors from.
Use it just like you would use a entity script.

Attach actor to a entity.

baseActor = new BaseActor();
entity->SetActor(baseActor);

BaseActor.h

#include "Leadwerks.h"


using namespace Leadwerks;

const enum class ActorType : char { Base, Player, NPC};

class BaseActor : public Actor
{
	//Built-in extendable functions
	//
	//virtual void EndAnimation(const int sequence);
	virtual void Sleep();
	//virtual void Wake();
	virtual void Attach();
	//virtual void Detach();
	//virtual void Collision(Entity* entity, const Vec3& position, const Vec3& normal, float speed);
	virtual void UpdateWorld();
	virtual void UpdatePhysics();
	//virtual void UpdateMatrix();
	virtual void PostRender(Context* context);
	//virtual void Draw();
	//virtual void DrawEach(Camera* camera);
	//virtual void ReceiveSignal(const std::string& inputname, Entity* sender);
public:
	ActorType actorType = ActorType::Base;


	BaseActor();
	virtual ~BaseActor();


};

BaseActor.cpp

#include "BaseActor.h"


BaseActor::BaseActor()
{
}


BaseActor::~BaseActor()
{
}

void BaseActor::Attach()
{
	//
	//System::Print("BaseActor Attached.");
}

void BaseActor::Sleep()
{
	//
	//System::Print("BaseActor Sleep.");
}

void BaseActor::UpdateWorld()
{
	//System::Print("BaseActor UpdateWorld.");
}

void BaseActor::UpdatePhysics()
{
	//System::Print("BaseActor UpdatePhysics.");
}

void BaseActor::PostRender(Context* context)
{
	//
}

 

[function which returns animation ID]

7 hours ago, tipforeveryone said:

Anyone remind me a function which returns animation ID of a model by input Animation name?

something like this: local animID = model:GetAnimationID("running_loop")

I think this function is not in document but it exists

I remember that Josh told me about it once

Definition Entity.h
virtual int FindAnimationSequence(const std::string& sequence);//lua

 

Entity::FindAnimationSequence("sequencename")

[And where's the motivation?]

whenevver i loose my motivation i actually force myself to do at least 4 hours of coding each week.
which in turn motivates me because i progress. (even if its just small progress)
this brings me in a vicious circle that keeps me going.
 

[New project manager template for Multiplayer has missing files.]

You could always edit the "common"  template  and remove the files you dont want to be copied.

Dont forget to backup before editing.

[New project manager template for Multiplayer has missing files.]

create your own "BlankProject" template its very easy and saves you a lot of time.

i remember i made a post somewhere on how to do it.

 

[access lua table in Script:Start()]

you could create your own pre-post processor function in your main.lua, and have that execute when you want.

[Concerns full screen]

i'm thinking this is due to NVIDIA trying to force/overwrite game settings when you manually set them.

try using default nvidia settings and let leadwerks do its thing...

[How did you get into game dev?]

It all started with a game called 'legend of mir', some guy got a hold of the sourcecodes and decided to release those. (source codes where in delphi 7)
with my knowledge of the game i started to search through the project to find references of spells that i knew the mechanics of
and slowly i started to understand the basics of how such spells worked.
The obvious next step for me whas to add my own custom spell to the game, compile/run and jump for joy.
how excited i whas that i just pulled that off

some 16 years later i still am just as excited and i learned a few extra languages.
i do admit i never went to school for this.

[GUI]

that is one option.
i recommend moving the event loop outside of the menu file though.
then call processevent(event) with a return value on any table that needs to process events.

for example in my current c++ project i actualy have a class called GUIManager which holds the event loop.
which in turn calls other gui classes to update and grab events.
when that call returns true then the event is processed and there is no need to call other classes with that event.

example code(C++) :

	//Handle GUI events
	while (EventQueue::Peek())
	{
		Event event = EventQueue::Wait();
		//
		//Update menu UI events
		if (!gamemenu->Hidden())
		{
			//exit game
			if (gamemenu->ProcessEvent(event) == false) return false;
		}
      		//update game UI events
		if (!gameui->Hidden()) gameui->ProcessEvent(event);
	}

 

[GUI]

you can create multiple GUI to hold widgets.
but only one event loop can be used.

[Newbee here: I want to change an objects mass with a script; HOW? i have spent like 20 hours not been able.]

self.entity:SetMass(5)

self.enity:GetMass()

[shader question]

i think this will get you the answer you need.

 

[script class]

almost forgot... checkout AggrorJorns plugin for visual studio code. very helpfull

https://www.leadwerks.com/community/blogs/entry/2145-visual-studio-code-for-leadwerks/

[script class]

your best option would be to use the search function on the forum.
other than that the demo projects that come with leadwerks basicly show all you can do.

[script class]

https://www.leadwerks.com/learn?page=Tutorials_Lua-Scripting_Introduction-to-Lua

scroll all the way down.

it is realy not that hard to find resources for Leadwerks to be honest.

[Can we add c++ to objects ?]

like spiderpig said only lua is accepted in that box.

But.......
The c++ Actor class is what your looking for.

[How to detect text has changed in a TextBox ?]

we basicly posted at the same time

you could use different approaches.
either send a widget event whenevver any text is typed into the field by using "Option 1".
or send a widget event whenevver the "ENTER" key is pressed "Option 2". (assume the user is done typing)
or send an widget event whenevver the "TAB" key is pressed "Option 3". (assume the user wants to switch to the next element in case of a form that needs filling)
if a WidgetAction event interferes with other events you could always use WidgetSelect or WidgetMenu events

--OPTION 1--
function Script:KeyChar(charcode)
	local s = self.widget:GetText()
	local c = String:Chr(charcode)
	if c=="\b" then
		--Backspace
		if String:Length(s)>0 then
			if self.sellen==0 then
				if self.caretposition==String:Length(s) then
					s = String:Left(s,String:Length(s)-1)
				elseif self.caretposition>0 then
					s = String:Left(s,self.caretposition-1)..String:Right(s,String:Length(s)-self.caretposition)
				end
				self.caretposition = self.caretposition - 1
				self.caretposition = math.max(0,self.caretposition)
			else
				local c1 = math.min(self.caretposition,self.caretposition+self.sellen)
				local c2 = math.max(self.caretposition,self.caretposition+self.sellen)
				s = String:Left(s,c1)..String:Right(s,String:Length(s) - c2)
				self.caretposition = c1
				self.sellen = 0
			end
			self.widget:GetGUI():ResetCursorBlink()
			self.cursorblinkmode=true
			self.widget.text = s
			self.widget:Redraw()
		end
	elseif c~="\r" and c~="" then
		--Insert a new character
		local c1 = math.min(self.caretposition,self.caretposition+self.sellen)
		local c2 = math.max(self.caretposition,self.caretposition+self.sellen)
		s = String:Left(s,c1)..c..String:Right(s,String:Length(s) - c2)
		self.caretposition = self.caretposition + 1
		if self.sellen<0 then self.caretposition = self.caretposition + self.sellen end
		self.sellen=0
		self.widget:GetGUI():ResetCursorBlink()
		self.cursorblinkmode=true		
		self.widget.text = s
		self.widget:Redraw()
		--
		--OPTION 1--
		--send event with data = 999
		EventQueue:Emit(Event.WidgetAction,self.widget,999)
	end
end

function Script:KeyUp(keycode)
	if keycode==Key.Shift then
		self.shiftpressed=false
	end
	--
	if keycode==Key.Enter then
		self.widget:GetGUI():SetFocus(nil)
		--
		--OPTION 2--
		--send event with data = 997
		EventQueue:Emit(Event.WidgetAction,self.widget,997)
	elseif keycode==Key.Tab then
		self.widget:GetGUI():SetFocus(nil)
		--
		--OPTION 3--
		--send event with data = 998
		EventQueue:Emit(Event.WidgetAction,self.widget,998)
	end
end

 

[How to detect text has changed in a TextBox ?]

I'm not at my pc right now but from the top of my head I would say.

Open textfield.lua, scroll all the way down and add a widget event call to the keychar or keydown/up method.

You will find examples of calling an event inside any widget script.

I will add a proper example when I get home.

[GUI label SetText,SetColor question]

better yet c++ can call functions straight out of the widgetscript.
so create a nice widget script set it to your widget and call functions from c++.
other than that c++ can do exactly the same as lua can when it comes to widgets.


sorry i forgot to add usage for the colorlabel.
use the above colorlabel script like this:

--create a custom widget
colorlabel = Widget:Create("", 100, 100, 250, 12, gui:GetBase(), "Scripts/GUI/ColorLabel.lua")
colorlabel:SetObject("textcolor", Vec4(1.0, 0.0, 0.0, 1.0))

 

[GUI label SetText,SetColor question]

to set a label's text color you would need to either edit the default label.lua or create a custom one.
here is code for a colorLabel:

--Styles
if Style==nil then Style={} end
if Style.Label==nil then Style.Label={} end
Style.Label.Left=0
Style.Label.Center=16
Style.Label.Right=8
Style.Label.VCenter=32

Script.bordercolor = Vec4(0.2,0.2,0.2,1)
Script.textcolor = Vec4(0.7,0.7,0.7,1)

--[[
Const LABEL_LEFT=0
Const LABEL_FRAME=1
Const LABEL_SUNKENFRAME=2
Const LABEL_SEPARATOR=3
Const LABEL_RIGHT=8
Const LABEL_CENTER=16
]]

function Script:Draw(x,y,width,height)
	local gui = self.widget:GetGUI()
	local pos = self.widget:GetPosition(true)
	local sz = self.widget:GetSize(true)
	local scale = gui:GetScale()
	local text = self.widget:GetText()
	local indent=4

	if self.border==true then
		gui:SetColor(self.bordercolor.r, self.bordercolor.g, self.bordercolor.b, self.bordercolor.a)
		gui:DrawRect(pos.x,pos.y,sz.width,sz.height,1)
	end

	
	--gui:SetColor(0.7,0.7,0.7)
	gui:SetColor(self.textcolor.r,self.textcolor.g,self.textcolor.b,self.textcolor.a)
	
	if text~="" then
		local style=0
		if self.align=="Left" then style = Text.Left end
		if self.align=="Center" then style = Text.Center end
		if self.align=="Right" then style = Text.Right end
		if self.valign=="Center" then style = style + Text.VCenter end
		
		if self.wordwrap==true then style = style + Text.WordWrap end
		
		if self.border==true then
			gui:DrawText(text,pos.x+scale*indent,pos.y+scale*indent,sz.width-scale*indent*2,sz.height-scale*indent*2,style)	
		else
			gui:DrawText(text,pos.x,pos.y,sz.width,sz.height,style)	
		end
	end
end

function Script:bitand(set, flag)
	return set % (2*flag) >= flag
end

 

[Mouse error]

the problem lies with window:HideMouse(), it is being called a couple times inside Menu.lua remove or comment out those lines and you wont have no problems anymore.