Velcer Posts - Answer Overflow

Velcer

•Created by Velcer on 7/12/2023 in #help

❔ Trouble with C# certificates

Greetings, In a local environment I have no issues at all. When I push my Game Server (the client) to a hosted environment, I get an error saying the following:

{"Type":"InvalidAuth","Message":"This server requires client certificate for authentication, but none was provided by the client. Did you forget to install the certificate?"}

I contacted Ravendb support and they said the following:

Basically it's about the X509 certificate's private key. In a lot of platform you need to allow the app to load that certificate explicitly e.g. by providing its thumbprint.

My assumption of this response is that I need to first install the certificate on said machine before I can use it. The problem is that I don't have permissions to install a certificate on that machine. I am wondering what can be done. The following code is what I am using:

using Raven.Client.Documents;
using Raven.Client.Documents.Conventions;
using System;
using System.IO;
using System.Security.Cryptography.X509Certificates;

public static class DocumentStoreHolder
{
    private const string CERTIFICATE_PASSWORD = "B8ABC07EA75BC5B18DB92386A726F93A";
    private static string CERTIFICATE_PATH = Path.GetFullPath("certificate.pfx");

    public static X509Certificate2 GetCertificate() 
    {
        return new X509Certificate2(CERTIFICATE_PATH, CERTIFICATE_PASSWORD);
    }
    public static void Initialize() 
    {
        var certificate = GetCertificate();

        LazyStore = new Lazy<IDocumentStore>(() =>
        {
            var store = new DocumentStore
            {
                Urls = new[] { "https://a.free.starmmo.ravendb.cloud" },
                Database = "StarMMO",
                Certificate = certificate,
                

            };
            return store.Initialize();
        });

    }

    private static Lazy<IDocumentStore> LazyStore;

    public static IDocumentStore Store => LazyStore.Value;
}

using Raven.Client.Documents;
using Raven.Client.Documents.Conventions;
using System;
using System.IO;
using System.Security.Cryptography.X509Certificates;

public static class DocumentStoreHolder
{
    private const string CERTIFICATE_PASSWORD = "B8ABC07EA75BC5B18DB92386A726F93A";
    private static string CERTIFICATE_PATH = Path.GetFullPath("certificate.pfx");

    public static X509Certificate2 GetCertificate() 
    {
        return new X509Certificate2(CERTIFICATE_PATH, CERTIFICATE_PASSWORD);
    }
    public static void Initialize() 
    {
        var certificate = GetCertificate();

        LazyStore = new Lazy<IDocumentStore>(() =>
        {
            var store = new DocumentStore
            {
                Urls = new[] { "https://a.free.starmmo.ravendb.cloud" },
                Database = "StarMMO",
                Certificate = certificate,
                

            };
            return store.Initialize();
        });

    }

    private static Lazy<IDocumentStore> LazyStore;

    public static IDocumentStore Store => LazyStore.Value;
}

4 replies

CC#

•Created by Velcer on 3/11/2023 in #help

❔ Flip Board not working properly

Hello, I'm working on a level editor for my game. My board is not flipping properly. I've attached a video. Here is my code:

        public void FlipBoard() 
        {
            foreach (var boardObject in _placedObjects)
            {
                if (boardObject.buildable.Category == LevelEditorCategory.BoardTile || boardObject.buildable.Category == LevelEditorCategory.Piece || boardObject.buildable.Category == LevelEditorCategory.ActionTile)
                {
                    var pos = boardObject.Position;
                    var newRotation = new Vector2(pos.x, pos.y);


                    newRotation = newRotation.Rotate(180);
                    newRotation.x += _levelBounds.max.x;
                    newRotation.y += _levelBounds.max.y;
                    



                    boardObject.transform.position = newRotation;
                    boardObject.Position = new Vector2Int((int)newRotation.x, (int)newRotation.y);
                }

            }


            isFlipped = !isFlipped;
        }

        public void FlipBoard() 
        {
            foreach (var boardObject in _placedObjects)
            {
                if (boardObject.buildable.Category == LevelEditorCategory.BoardTile || boardObject.buildable.Category == LevelEditorCategory.Piece || boardObject.buildable.Category == LevelEditorCategory.ActionTile)
                {
                    var pos = boardObject.Position;
                    var newRotation = new Vector2(pos.x, pos.y);


                    newRotation = newRotation.Rotate(180);
                    newRotation.x += _levelBounds.max.x;
                    newRotation.y += _levelBounds.max.y;
                    



                    boardObject.transform.position = newRotation;
                    boardObject.Position = new Vector2Int((int)newRotation.x, (int)newRotation.y);
                }

            }


            isFlipped = !isFlipped;
        }

    public static Vector2 Rotate(this Vector2 v, float degrees)
    {
        return v.RotateRadians(degrees * Mathf.Deg2Rad);
    }

    public static Vector2 RotateRadians(this Vector2 v, float radians)
    {
        var ca = Mathf.Cos(radians);
        var sa = Mathf.Sin(radians);
        return new Vector2(ca * v.x - sa * v.y, sa * v.x + ca * v.y);
    }

    public static Vector2 Rotate(this Vector2 v, float degrees)
    {
        return v.RotateRadians(degrees * Mathf.Deg2Rad);
    }

    public static Vector2 RotateRadians(this Vector2 v, float radians)
    {
        var ca = Mathf.Cos(radians);
        var sa = Mathf.Sin(radians);
        return new Vector2(ca * v.x - sa * v.y, sa * v.x + ca * v.y);
    }

17 replies

CC#

•Created by Velcer on 3/4/2023 in #help

❔ How can I find all the whole number vectors between two points?

Vector2(-8, -8) Vector2(8, 8) How can I find all the whole number vectors between two points?

20 replies

CC#

•Created by Velcer on 2/25/2023 in #help

❔ Continue a switch statement

The switch statement is very convenient for managing my types. I would like to instead of just having one of these hit, for it to hit any that meet criteria.

            switch (kinematic)
            {
                case PlayerShip playerShip:
                    playerShipsEnteredProximityOfEntity.Add(new KeyValuePair<ushort, ushort> (kinematic.KinematicId, collision.Id));
                    break;
                case BaseEntity entity:
                    if (!entity.EntitiesInProximity.Contains(collision.Id))
                        entity.EntitiesInProximity.Add(collision.Id);
                    break;
            }

            switch (kinematic)
            {
                case PlayerShip playerShip:
                    playerShipsEnteredProximityOfEntity.Add(new KeyValuePair<ushort, ushort> (kinematic.KinematicId, collision.Id));
                    break;
                case BaseEntity entity:
                    if (!entity.EntitiesInProximity.Contains(collision.Id))
                        entity.EntitiesInProximity.Add(collision.Id);
                    break;
            }

10 replies

CC#

•Created by Velcer on 2/25/2023 in #help

❔ Get collection of a groupBy based on key.

I have a list of KeyValuePairs <ushort, ushort> I am attempting to group the list by the key,

so myNewCollection = list.OrderBy(k => k.key);

now we step into a foreach loop
foreach (var player in players)
{
     // TO DO : Get all items from myNewCollection where key is player.Id
      // Iterate new collection
}

so myNewCollection = list.OrderBy(k => k.key);

now we step into a foreach loop
foreach (var player in players)
{
     // TO DO : Get all items from myNewCollection where key is player.Id
      // Iterate new collection
}

csharp What I am having trouble with is understanding the proper, efficient way to get all items of myNewCollection where the key is my playerId.

17 replies

CC#

•Created by Velcer on 2/21/2023 in #help

❔ Any Danger to using Actions in this way?

    public class Entity
    {
        public event Action<int> OnUpdateFrame;

        internal void OnNewTick(int tick) 
        {
            OnUpdateFrame?.Invoke(tick);
        }
    }

    public class Frog : Entity
    {
        public Frog() 
        {
            OnUpdateFrame += Frog_OnUpdateFrame;
        }

        private void Frog_OnUpdateFrame(int obj)
        {
            throw new NotImplementedException();
        }
    }

    public class SuperFrog : Frog
    {
        public SuperFrog() : base()
        {
            OnUpdateFrame += SuperFrog_OnUpdateFrame;
        }

        private void SuperFrog_OnUpdateFrame(int obj)
        {
            throw new NotImplementedException();
        }
    }

    public class Entity
    {
        public event Action<int> OnUpdateFrame;

        internal void OnNewTick(int tick) 
        {
            OnUpdateFrame?.Invoke(tick);
        }
    }

    public class Frog : Entity
    {
        public Frog() 
        {
            OnUpdateFrame += Frog_OnUpdateFrame;
        }

        private void Frog_OnUpdateFrame(int obj)
        {
            throw new NotImplementedException();
        }
    }

    public class SuperFrog : Frog
    {
        public SuperFrog() : base()
        {
            OnUpdateFrame += SuperFrog_OnUpdateFrame;
        }

        private void SuperFrog_OnUpdateFrame(int obj)
        {
            throw new NotImplementedException();
        }
    }

9 replies

CC#

•Created by Velcer on 10/18/2022 in #help

Imported a package, but using statement isn't working?

1 replies

CC#

•Created by Velcer on 10/17/2022 in #help

Does anyone have experience with maps?

I'm building a winforms replica of an online map, as seen here: https://wiki.albiononline.com/wiki/World_Map I'm trying to take this data, and rebuild this into a winforms application, so that I can utilize it and provide more data to the map. It uses a library called Leaflet. I'm trying to use syncfusions map, but they take a shapefile, and all I have is png files from this world map.

1 replies

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