lua cast to C++

[Rocko]

Hello, i write code by lua but i need to use C++ because it need for my project. I searched the Internet for information about this and found only vague references or something that did not suit me for leadwerks. I learned how to call lua functions via C ++ via the Interpreter, but that's not what I need. If someone can provide a simple project (with text output to the console, for example) or a clear explanation with examples, I will be very grateful!

[reepblue]

What is it exactly you're trying to do? You want to expose functions with glue code? 

 

Sorry for being so late, this just recently grabbed my attention.  

[Rocko]

On 1/30/2021 at 7:50 PM, reepblue said:

What is it exactly you're trying to do? You want to expose functions with glue code? 

 

Sorry for being so late, this just recently grabbed my attention.  

I want to call C++ function by lua but i don't know how to do it

[Josh]

tolua++ is the library we use. It will do what you need.

[Rocko]

20 часов назад, Optimus Josh сказал:

tolua++ is the library we use. It will do what you need.

How exactly can i use it?

[Yue]

5 hours ago, Rocko said:

How exactly can i use it?

toLua home page (puc-rio.br)

[reepblue]

I would hook you up, but the code is pretty old and I had issues with Interpreter doing so. What functions do you need to call? Unless it's math functions, it's not worth it. If it's actor assigning, please take a look at this. 

[Rocko]

13 часов назад, reepblue сказал:

I would hook you up, but the code is pretty old and I had issues with Interpreter doing so. What functions do you need to call? Unless it's math functions, it's not worth it. If it's actor assigning, please take a look at this. 

oooh....

Okay, for example, i wrote function in App.cpp

void App::Test(lua_State* L)

{

System::Print("TEST FUNCTION");

}

in .h file i wrote in public functions this:

virtual void test(lua_State* L);

 

in test lua file i  wrote this:

function Script:Start()

   App:test()
end

but it  doesn't work. What am I missing to make this work?  It's test function, i know lua language, but I need to  rewrite part of the Lua code into C ++, but I don’t know how to call my custom C++ by lua.
That's why I started with simple functions, but I can't even just write a message to the console. 

 

 

 

 

 

 

[Rocko]

19 часов назад, Dark Yue сказал:

toLua home page (puc-rio.br)

i readed it, but I didn't understand anything otherwise I wouldn't write there about this

[Josh]

This describes usage:
https://www8.cs.umu.se/kurser/TDBD12/VT04/lab/lua/tolua++.html

[Rocko]

1 час назад, Optimus Josh сказал:

This describes usage:
https://www8.cs.umu.se/kurser/TDBD12/VT04/lab/lua/tolua++.html

I have many errors

Source.zip

[Josh]

I made these changes to make your code compile:

• Added "#pragma once" at the top of ok.h.
• Added "public:" in ok class.

#pragma once
#include "Leadwerks.h"

using namespace Leadwerks;

class ok
{
public:
	ok(); //lua

	void ko(); //lua

};

And I added this at the top of ok_lua.cpp:

#include "ok.h"

I did not test beyond that, but it compiles.

[Rocko]

39 минут назад, Optimus Josh сказал:

I made these changes to make your code compile:

• Added "#pragma once" at the top of ok.h.
• Added "public:" in ok class.

#pragma once
#include "Leadwerks.h"

using namespace Leadwerks;

class ok
{
public:
	ok(); //lua

	void ko(); //lua

};

And I added this at the top of ok_lua.cpp:

#include "ok.h"

I did not test beyond that, but it compiles.

It compiled, but i got this error

[Josh]

See this:

 

[Rocko]

16 часов назад, Optimus Josh сказал:

See this:

 

THANK YOU, MR OPTIMUS JOSH, FOR YOUR HELP IN GLUE CODE! ?

 

[Rocko]

17 часов назад, Optimus Josh сказал:

See this:

 

THANK YOU, MR OPTIMUS JOSH, FOR YOUR HELP IN GLUE CODE! ?

 

All ok, but when i use Debug breakpoint this doesn't work properly, or application of game closed without error or i have this error  of Visual C++

[Josh]

Can you upload a working project I can run to test?

[Rocko]

12 часов назад, Optimus Josh сказал:

Can you upload a working project I can run to test?

Okay, but it's not my project, i downloaded this in this topic and updated to newer version of leadwerks (4.6), but i fixed it. I use this example project, because i needed it to learn tolua bridge.

 

 

Shooter.zip