LuaTest.cs

using LuaInterface;
using System.Reflection;
using UnityEngine;

public class LuaTest : MonoBehaviour
{   
    private Lua mLua;

    private void Start()
    {
        var filename = Application.dataPath + "/luaTest.lua";
        var type = GetType();

        mLua = new Lua();
        mLua.RegisterFunction( "publicLog", this, type.GetMethod( "PublicLog" ) );
        mLua.RegisterFunction( "privateLog", this, type.GetMethod( "PrivateLog", BindingFlags.NonPublic | BindingFlags.Instance ) );
        mLua.RegisterFunction( "publicStaticLog", this, type.GetMethod( "PublicStaticLog", BindingFlags.Public | BindingFlags.Static ) );
        mLua.RegisterFunction( "privateStaticLog", this, type.GetMethod( "PrivateStaticLog", BindingFlags.NonPublic | BindingFlags.Static ) );
        mLua.DoFile( filename );
    }
    
    public void PublicLog()
    {
        Debug.Log( "PublicLog" );
    }
    
    private void PrivateLog()
    {
        Debug.Log( "PrivateLog" );
    }

    public static void PublicStaticLog()
    {
        Debug.Log( "PublicStaticLog" );
    }

    private static void PrivateStaticLog()
    {
        Debug.Log( "PrivateStaticLog" );
    }
}