Question

Hey guys, Imma teach you how to write a Lua binary module in C/C++ and make it work in CS2D using Dev-C++. Our module should read the files inside a directory and return them in a table.

1st step:
Download the Lua binaries for windows:
Luaforge
We will be downloading lua5.1.4 Win32 bin.zip
Place Lua5.1.dll in your Dev-C++/bin/ folder.

2nd step:
Download the lua source from Lua.org
Extract the following files and place them in your Dev-C++/Include/Lua folder:
Lauxlib.h
lua.h
luaconf.h
lualib.h
And in your Dev/C++/include folder make a file called Lua.hpp that should contain this:

3rd step:
Create a new windows Dll project

4th step:
Here you should write your code after all the stuff declared after the template in our dllmain.cpp file

5th step:
We make a function that should be registering our C++ functions

6th step:
We surround both our init and myluareadfolder functions with an extern "C" construction so that our compiller knows that these are C funcions , just like in Lua.hpp Since Lua is completely written in C we will have to do this for C++ so that our compiler know that these are C functions.

Now you can compile.
Congratulations, you have successfully made a Lua binary extension without severely hurting/injuring/killling anybody

7th step:
Copy the lua5.1.dll file from your Dev-C++/bin directory and paste in a CS2D/libs/ folder, or paste it in C:/Windows/System32/

8th step:
Now that we have everything ready we will call our library through Lua. And voila, we can call our C++ function using read_dir() and passing the folder you want to read

Notes:
I didn't explain too much because this would have been a very large post but you can ask something and I will (hopefully) answer ^^

Answer 1

i like this answer (click again to cancel)

0

i dont like this answer (click again to cancel)

Haha pretty fucking awesome :D



I managed to create my own sethealth function in c :D
This way, you can go beyond the standard 250 HP /  100 armor



function loadbinaries()
local f,e = package.loadlib("sys/my_lua/Lua_ext.dll","init")
if e then print(e) return nil end
f()
msg("Loading library succeeded!")


end

loadbinaries()

a = my_function(1,2,3,"abc","def")

msg(string.format("my_function() returned %i",a))

function set(am)
    h = make_god(am)
end

addhook("say","mysay")
function mysay(id,txt)
    if(txt == "!god") then
        set(5000)
        msg("health : "..player(1,"health"))
    end
end



and the c code:

int make_god(lua_State *L)
{
    int argc = lua_gettop(L);
    int health = lua_tointeger(L,argc);

    __int32 * pStruct = (__int32 *)0x61D42C;
    CPlayer * local = (CPlayer *)(*pStruct);

    local->health = health;
    local->armor = health;

    return health;      
}

permanent link | flag offensive

updated2010-05-03 23:21:00.608360

answered 2010-05-02 12:51:25.464659
	eTarPu 46

add comment

Related questions