astar-search 1.0.2

.NET Standard 2.0
dotnet add package astar-search --version 1.0.2
NuGet\Install-Package astar-search -Version 1.0.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="astar-search" Version="1.0.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add astar-search --version 1.0.2
#r "nuget: astar-search, 1.0.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install astar-search as a Cake Addin
#addin nuget:?package=astar-search&version=1.0.2

// Install astar-search as a Cake Tool
#tool nuget:?package=astar-search&version=1.0.2

A* Search algorithm in F#.

An implementation of the classic algorithm, as described here:*_search_algorithm.

However, in contrast to the pseudo-code shown in that article, this version is implemented in a purely functional and immutable way, as is more idiomatic for F#.

The core code is in the src/AStar.fs/AStar module. The algorithm requires callers submit a start point, goal point, and three functions: a gscore calculator, fscore calculator and a method that returns the neighbours of a given point. In this way, the algorithm is generalisable to any type of point or graph structure - the only constraint on the generic point type is that it be comparable.

samples/Program.fs contains a console application demonstrating use of the algorithm, finding a path through a two dimensional grid.

This project can be used from nuget:


Changes from 1.0.1

The core algorithm wasn't using tail recursion, which could cause stack overflows over large problem spaces. This has been fixed.

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
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Version Downloads Last updated
1.0.2 606 12/28/2018
1.0.1 656 9/22/2018
1.0.0 629 9/22/2018