ajandClaude Opus 5.5
70ae0cc155
Each engine-building run started from a hand-copied scaffold (Qwen's), which carried that engine's name and stale notes. _Template holds the generic scaffold with a __NAME__ placeholder, and New-Engine.ps1 stamps out a named copy. The template's starter tests go through the benchmark's NestValidator, so a model gets a real pass/fail target instead of a plumbing-only check; they were verified to pass against Opus55. Directory.Build.props now also detects when it sits in an Engines/ folder inside an OpenNest checkout, so an engine stamped there with -IncludeBuildFiles builds without passing OpenNestRoot. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
57 lines
2.0 KiB
Markdown
57 lines
2.0 KiB
Markdown
# OpenNest Engines
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Independent nesting engine plugins for [OpenNest](https://git.thecozycat.net/aj/OpenNest).
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Each engine is a standalone class library that OpenNest discovers at runtime via
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`NestingEngineRegistry.LoadPlugins()` — drop the DLL into an `Engines/` folder next to
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the OpenNest app or `OpenNest.Benchmark` build output.
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| Engine | Approach |
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|--------|----------|
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| [Astra](OpenNest.Engine.Astra/) | Contact-based placement |
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| [Opus55](OpenNest.Engine.Opus55/) | Frontier-advance no-fit-polygon packing |
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| [Qwen](OpenNest.Engine.Qwen/) | Scaffold — not yet implemented |
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## Building
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Engines compile against an OpenNest checkout, expected as a sibling clone:
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```
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src/
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OpenNest/ git clone https://git.thecozycat.net/aj/OpenNest.git
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OpenNest-Engines/ this repo
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```
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Use a different location with `/p:OpenNestRoot=<path>` (or the `OpenNestRoot`
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environment variable).
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```powershell
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./Build-Engines.ps1 # build all engines + deploy to the benchmark
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./Build-Engines.ps1 -Engines Opus55 # just one
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dotnet test OpenNest.Engine.Opus55/tests/OpenNest.Engine.Opus55.Tests.csproj
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```
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Each engine's README covers its algorithm and benchmark results.
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## Writing a new engine
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```powershell
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./New-Engine.ps1 -Name Nova
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```
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This copies `_Template/` to `OpenNest.Engine.Nova/`: an `INestingEngine` stub, a README
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spelling out what counts as an independent engine, and starter acceptance tests checked by
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the benchmark's own `NestValidator` (they fail until `Solve()` is implemented).
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To work inside an OpenNest checkout instead, stamp it into an `Engines/` folder there and
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bring the shared build files along; they detect that layout automatically:
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```powershell
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./New-Engine.ps1 -Name Nova -Destination <OpenNest>/Engines -IncludeBuildFiles
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```
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## Layout
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Each engine lives in `OpenNest.Engine.<Name>/` with an optional `tests/` subproject.
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`Directory.Build.props` supplies the target framework and the `OpenNest.Engine`
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reference, so an engine's `.csproj` can be nearly empty.
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