Looking for Help Setting Up a C# RedM RP Server (Client & Server)

RedM Server Development Server Support
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1

Server Artifact Version: latest 13458
Operating System (Windows/Linux): Windows
Language : C# (CSharp)
Lib: try to import with Nuget or just with (dotnet new cfx-resource)

Hi everyone!

I’m currently working on creating a RedM RP server and I want to build it entirely in C#, both on the client and server side.

I’ve already set up a basic vanilla RedM server to test things out. The setup goes well, I install the resource with:

dotnet new cfx-resource

The server launches fine, and the client spawns correctly — so far, so good!

But then, on the client side, I run into errors during the ticks. I get this message in the console:

MainThrd/ Failed to run a tick for ClientMain: System.BadImageFormatException: Error verifying dev.Client.ClientMain/<WorldControlLoop>d__5:MoveNext (): Cannot load method from token 0x0a00003a for call at 0x0075

For example, I have this simple code running after spawn:

// when i spawn -> i run this 
Tick += WorldControlLoop;

private async Task WorldControlLoop()
{
    try
    {
        Debug.WriteLine("[DEBUG] WorldControlLoop ok !");

        SetPedDensityMultiplierThisFrame(0.0f);
        SetScenarioPedDensityMultiplierThisFrame(0.0f, 0.0f);

        // Clearing the area around the player (commented out for now)
        // var ped = PlayerPedId();
        // var coords = GetEntityCoords(ped, true);
        // ClearAreaOfPeds(coords.X, coords.Y, coords.Z, 200.0f, 0);
    }
    catch (Exception e)
    {
        Debug.WriteLine($"[WorldControlLoop] Exception : {e.Message}");
    }

    await Delay(100);

}

I’m thinking it might be an issue with outdated libraries or some mismatch, so I tried using another installation method.

I found here:
:point_right: mono_v2_get_started/Setup.md at main · thorium-cfx/mono_v2_get_started · GitHub
or i try to follow this with mono
:point_right: C# mono v2

But, unfortunately, I couldn’t get it to work either.

I’m pretty stuck right now and going in circles. Does anyone have a working base setup or any advice on how to properly set up a **C# RedM server **?

Any help would be greatly appreciated! :pray:

Thanks in advance!

1 Like
2

I’m taking a guess that’s it’s more than likely the same issue mentioned here: C# Client side issues issue was solved check the solution hopefully this helps.

3

Thank you so much for your help Kronus!

I’ve decided to abandon the idea for now this environment is still in beta, and it’s just not stable enough yet.

I don’t feel like constantly struggling with the documentation or the instability.

It’s sad to see the C# version isn’t more mature and that the community isn’t as big and active as it is with Lua.

4

I ended up doing it this way.

dotnet new cfx-resource

It works at least and i wait mono v2 stable …
What do you think about it?

private async Task CleanerPnj()
{
    // Disable Dispatch services (still on the client side)
    for (int i = 1; i <= 15; i++)
    {
        API.EnableDispatchService(i, false);
    }

    try
    {
        // Clean up NPCs
        var peds = GetGamePool("CPed");

        foreach (var pedHandle in peds)
        {
            int ped = Convert.ToInt32(pedHandle);

            // If it's a player, skip
            if (IsPedAPlayer(ped))
                continue;

            // If it's a protected NPC, skip
            if (DecorExistOn(ped, "DontDelete") && DecorGetInt(ped, "DontDelete") == 1)
                continue;

            // Otherwise, delete it
            DeleteEntity(ref ped);
        }

        // Clean up vehicles (including wagons)
        var vehicles = GetGamePool("CVehicle");

        foreach (var vehHandle in vehicles)
        {
            int veh = Convert.ToInt32(vehHandle);

            // Exclude if vehicle is protected
            if (DecorExistOn(veh, "DontDelete") && DecorGetInt(veh, "DontDelete") == 1)
                continue;

            // Delete the wagon
            DeleteEntity(ref veh);
        }
    }
    catch (Exception ex)
    {
        Debug.WriteLine($"[C# ERROR] Error in CleanWorld loop: {ex.Message}");
    }

    await Delay(500); 
}
5

I agree it is sad, I’ve always enjoyed working with C# in general, the one thing I will say is that from what I can recall is a lot of the natives for RedM are not yet implemented so a lot of the time you will have to call them via their native hash however I just ended up making an external library that served as wrapper functions for that case.

6

It looks fine there’s some minor stuff you could do syntax wise to make it a little more readable however if it functions it functions. Are you running this on a constant tick within the client? This could get expensive over time.

7

Finnaly, I ended up starting a project using Mono v2 recently, and I’ve been having a lot of fun with it so far.

That said, I’d be super interested in checking out your external library with all the native hashes wrapped—sounds like it would save a ton of time! Would you be open to sharing it? :slight_smile:

8

I haven’t found how to disable the automatic generation of npc by the client. But I’m looking into how else to do it!

9

If you want to do it client side there is various natives to do so they need to be ran on a tick however. If you check the native database its a long the lines of SetPedDensity there’s various ones

10

Sure send me a message I’ll share with you what I still have

11

Hello, I have a new issue: sometimes when I try to catch a key press, the frame doesn’t register it.

I also tried using RegisterKeyMapping (0xD7664FD1), but it doesn’t exist with Mono v2.
I also tried calling it by address, but it’s impossible!

private async Coroutine scanKeyboard()
{
    if (ControlManager.isJustPressed((uint)Controls.PageUp))
    {
        Debug.WriteLine("Press");
        ToggleMenu();
        await Wait(250);
    }

    await WaitUntilNextFrame();
}

Plus, other problem if i use SetNuiFocus(true, true) it’s impossible to close menu with no keybinding …

12

For information Mono V2 work well with 4.8.1 Net Framewok !