Mud Engine

Mud Engine is a C# MUD Game Engine using Asp.Net Core 8 (C#12, Kestrel, Roslyn, gRPC) and SQL Server 2022.

Kestrel is a cross-platform web server for ASP.Net Core. Since version 2.1 of ASP.Net Core, it has been possible to configure Kestrel as a generic TCP server (due to Project Bedrock) and make use of high performance I/O pipelines. Producer/consumer relationships are added (as necessary) with Threading Channels to handle back pressure. Scalable inter-process communication (seperating the MUD itself from the Telnet/Command servers) is handled via gRPC duplex streaming.

The Command Server accesses data stored in SQL Server 2022+, making use of Parameter Sensitive Plan Optimization. Commands can be compiled using the Roslyn compiler, and executed as collectible assemblies in a secured AssemblyLoadContext during runtime. Basic Natural Language Processing has been added by using Penn Treebank Project part-of-speech tags.

The Telnet Server accepts UTF-8 I/O, but the input stream is Folded into Ascii-7 at the Hub Server using FormD -> FormC Normalization via Runes - a more nuanced version of grapheme clustering similar to Lucene's AsciiFoldingFilter. Supported protocols (so far) include GMCP and MSSP, and have been tested against Mudlet and zMud.