# Classic C# Threads for [DragonECS](https://github.com/DCFApixels/DragonECS) | Languages: | [Русский](https://github.com/DCFApixels/DragonECS-ClassicThreads/blob/main/README-RU.md) | [English(WIP)](https://github.com/DCFApixels/DragonECS-ClassicThreads) | | :--- | :--- | :--- | Support for processing entities in multiple threads, based on classic C# threads implementation. > **NOTICE:** The project is a work in progress, API may change. > While the English version of the README is incomplete, you can view the [Russian version](https://github.com/DCFApixels/DragonECS-ClassicThreads/blob/main/README-RU.md).
# Installation Versioning semantics - [Open](https://gist.github.com/DCFApixels/e53281d4628b19fe5278f3e77a7da9e8#file-dcfapixels_versioning_ru-md) ## Environment Requirements: + Dependency: [DragonECS](https://github.com/DCFApixels/DragonECS) + Minimum version of C# 7.3; Optional: + Support for NativeAOT + Game engines with C#: Unity, Godot, MonoGame, etc. Tested with: + **Unity:** Minimum version 2020.1.0; ## Unity Installation * ### Unity Package The framework can be installed as a Unity package by adding the Git URL [in the PackageManager](https://docs.unity3d.com/2023.2/Documentation/Manual/upm-ui-giturl.html) or manually adding it to `Packages/manifest.json`: ``` https://github.com/DCFApixels/DragonECS-ClassicThreads.git ``` * ### Source Code The framework can also be added to the project as source code.
# Parallel iteration ``` csharp EcsThreadHandler _handler; public void Run(EcsPipeline pipeline) { var group = _world.Where(out Aspect a); void Handler(ReadOnlySpan entities) { foreach (var e in entities) { a.poses.Get(e).position += a.velocities.Read(e).value * _time.DeltaTime; } } group.IterateParallel(_handler ??= Handler, 1000); } ``` > **NOTICE:** The smaller the minimum size of the group part when dividing, the more threads can be utilized. In some situations, too many threads can negatively impact performance. > **NOTICE:** Inside the handler, creating/deleting entities, adding/removing components on entities is prohibited. Only modification of data within components is allowed.