NPort/NPort/Bindings/Robocraft.cs

using System.Runtime.InteropServices;

namespace NPort.Bindings
{
    public static class Robocraft
    {
        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
        public struct FactoryRobotListInfo{
            public uint item_id;
            public string item_name;
            public string item_description;
            public string thumbnail; // url
            public string added_by;
            public string added_by_display_name;
            public string added_date; // ISO date
            public string expiry_date; // ISO date
            public uint cpu;
            public uint total_robot_ranking;
            public uint rent_count;
            public uint buy_count;
            public uint buyable; // bool
            public string removed_date;
            public string ban_date;
            public uint featured; // bool
            public string banner_message;
            public float combat_rating;
            public float cosmetic_rating;
            public string cube_amounts; // JSON as str
        }
        
        [DllImport("libfj.dll", CallingConvention = CallingConvention.Cdecl)]
        static extern void get_factory_front_page(uint size, [In,Out] FactoryRobotListInfo[] array_ptr);

        public static FactoryRobotListInfo[] GetFactoryFrontPage()
        {
            uint size = 100;
            FactoryRobotListInfo[] arr = new FactoryRobotListInfo[size];
            get_factory_front_page(size, arr);
            return arr;
        }
    }
}