1.5 KiB
DelphiLua
definitely not the most creative project name
This project consists of two parts: a straight-up conversion of the LuaBinaries 5.2 C headers to Delphi, and the TLua class to make integrating Lua with Delphi projects easier.
A note on compatibility
It's been tested and developed on Delphi XE2 32-bits. Minimum version for the wrapper is probably 2010, due to anonymous functions and TRttiContext being used. I also know for sure that the code isn't 64-bits compatible yet.
Getting started
Download lua-5.2.4_Win32_bin.zip from LuaBinaries and extract lua52.dll.
If you're just interested in the API, the Lua manual is the best place to start.
For the wrapper, take a look at the unit tests in TestWrapper.pas. Be sure to copy Lua52.dll into the output path if you're gonna run the unit tests or your own project.
A very, very simple example
Load a script from a string, passing two variables A and B and having the script sum them up into variable C.
var
lua: TLua;
returnValue: Integer;
begin
lua := TLua.Create;
try
lua.SetGlobalVariable('A', 5);
lua.SetGlobalVariable('B', 10);
lua.LoadFromString('C = A + B');
returnValue := lua.GetGlobalVariable('C').AsInteger;
finally
FreeAndNil(lua);
end;
end;
...of course, you can do much more exciting things like calling Delphi functions from Lua or vice versa. Check out the Call and RegisterFunction(s) methods. Have fun!