Added initial set of generic AI search files

.gitattributes

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+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+*.vcxproj.filters
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+**/Properties/launchSettings.json
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignoreable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/

README.md

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+## Synopsis
+
+A sprite compiler that targets 16-bit 65816 assembly code on the Apple IIgs computer.  The sprite compiler uses informed search techniques to generate optimal code for whole-sprite rendering.
+
+## Code Example
+
+## Motivation
+
+## Installation
+
+## API Reference
+
+## Tests
+
+## Contributors
+
+## License
+
+MIT License

SpriteCompiler.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25420.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SpriteCompiler", "SpriteCompiler/SpriteCompiler.csproj", "{56F54CA9-17C1-45C6-915B-6FABF4DAE5D0}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{56F54CA9-17C1-45C6-915B-6FABF4DAE5D0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{56F54CA9-17C1-45C6-915B-6FABF4DAE5D0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{56F54CA9-17C1-45C6-915B-6FABF4DAE5D0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{56F54CA9-17C1-45C6-915B-6FABF4DAE5D0}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

SpriteCompiler/AI/AStarComparer.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpriteCompiler.AI
+{
+    public class AStarComparator<A, S, T, C> : IComparer<T>
+        where T : HeuristicSearchNode<A, S, T, C>
+        where C : IPathCost<C>
+    {
+        public int Compare(T x, T y)
+        {
+            var cost1 = x.Heuristic.Add(x.PathCost);
+            var cost2 = y.Heuristic.Add(y.PathCost);
+
+            return cost1.CompareTo(cost2);
+        }
+    }
+}

SpriteCompiler/AI/AStarSearch.cs

@@ -0,0 +1,17 @@
+namespace SpriteCompiler.AI
+{
+    public class AStarSearch<A, S, T, C> : BestFirstSearch<A, S, T, C>
+        where T : HeuristicSearchNode<A, S, T, C>
+        where C : IPathCost<C>
+    {
+        public AStarSearch(AbstractAISearch<A, S, T, C> search)
+            : base(search, new AStarComparator<A, S, T, C>())
+        {
+        }
+
+        public AStarSearch(AbstractAISearch<A, S, T, C> search, IQueue<T> fringe)
+            : base(search, fringe)
+        {
+        }
+    }
+}

SpriteCompiler/AI/AbstractAISearch.cs

@@ -0,0 +1,79 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Linq;
+
+    public abstract class AbstractAISearch<A, S, T, C>
+        where T : ISearchNode<A, S, T, C>
+        where C : IComparable<C>
+    {
+        // Conceptually the expander is responsible for two things:
+        //
+        //   1. Creating a node's successors via the Successor Function
+        //      and wrapping them in SearchNodes (computing path costs
+        //      and heuristics, as well).
+        //
+        //   2. Creating a search node from a state.  This lets us
+        //      decouple the search algorithm from the state expansion
+
+        private INodeExpander<A, S, T, C> expander;
+
+        public AbstractAISearch(INodeExpander<A, S, T, C> expander)
+        {
+            this.expander = expander;
+        }
+
+        public INodeExpander<A, S, T, C> Expander { get { return expander; } }
+
+        public IEnumerable<T> Solution(T node)
+        {
+            var sequence = new List<T>();
+
+            while (node != null)
+            {
+                sequence.Add(node);
+                node = node.Parent;
+            }
+
+            sequence.Reverse();
+
+            return sequence;
+        }
+
+        public IEnumerable<T> ExtendSearch(ISearchProblem<A, S, C> problem, IQueue<T> fringe)
+        {
+            while (!fringe.Empty)
+            {
+                var node = fringe.Remove();
+
+                if (problem.IsGoal(node.State))
+                {
+                    return Solution(node);
+                }
+
+                AddNodes(fringe, node, problem);
+            }
+
+            return Enumerable.Empty<T>();
+        }
+
+        public IEnumerable<T> Expand(ISearchProblem<A, S, C> problem, T node)
+        {
+            return expander.Expand(problem, node);
+        }
+
+        public bool IsFailure(IEnumerable<T> solution)
+        {
+            return !solution.Any();
+        }
+
+        public IEnumerable<T> Search(ISearchProblem<A, S, C> problem, IQueue<T> fringe, S initialState)
+        {
+            fringe.Enqueue(expander.CreateNode(default(T), initialState));
+            return ExtendSearch(problem, fringe);
+        }
+
+        protected abstract void AddNodes(IQueue<T> fringe, T node, ISearchProblem<A, S, C> problem);
+    }
+}

SpriteCompiler/AI/AbstractSearchNode.cs

@@ -0,0 +1,47 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+    using System.Collections.Generic;
+
+    public abstract class AbstractSearchNode<A, S, T, C> : ISearchNode<A, S, T, C>
+        where T : ISearchNode<A, S, T, C>
+        where C : IPathCost<C>
+    {
+        protected readonly S state;
+        protected readonly T parent;
+        protected A action = default(A);
+
+        protected C pathCost = default(C);
+        protected C stepCost = default(C);
+        protected readonly int depth;
+
+        public AbstractSearchNode(T node, S state)
+        {
+            this.state = state;
+            this.parent = node;
+            this.depth = HasParent ? parent.Depth + 1 : 0;
+        }
+
+        private bool HasParent { get { return !EqualityComparer<T>.Default.Equals(parent, default(T));  } }
+
+        public A Action { get { return action; } set { action = value; } }
+        public T Parent { get { return parent; } }
+        public C PathCost { get { return pathCost; } }
+        public int Depth { get { return depth; } }
+        public S State { get { return state; } }
+
+        public C StepCost
+        {
+            get
+            {
+                return stepCost;
+            }
+
+            set
+            {
+                stepCost = value;
+                pathCost = HasParent ? parent.PathCost.Add(value) : value;
+            }
+        }
+    }
+}

SpriteCompiler/AI/BestFirstSearch.cs

@@ -0,0 +1,35 @@
+namespace SpriteCompiler.AI
+{
+    using System.Collections.Generic;
+
+    public class BestFirstSearch<A, S, T, C> : ISearch<A, S, T, C>
+        where T : ISearchNode<A, S, T, C>
+        where C : IPathCost<C>
+    {
+        protected readonly AbstractAISearch<A, S, T, C> search;
+        protected readonly IQueue<T> fringe;
+
+        public BestFirstSearch(AbstractAISearch<A, S, T, C> search, IQueue<T> fringe)
+        {
+            this.search = search;
+            this.fringe = fringe;
+        }
+
+        public BestFirstSearch(AbstractAISearch<A, S, T, C> search, IComparer<T> comparator)
+        {
+            this.search = search;
+            // this.fringe = new PriorityQueue<T>(INITIAL_CAPACITY, comparator);
+        }
+
+        public IEnumerable<T> Search(ISearchProblem<A, S, C> problem, S initialState)
+        {
+            fringe.Clear();
+            return search.Search(problem, fringe, initialState);
+        }
+
+        public IEnumerable<T> ExtendSearch(ISearchProblem<A, S, C> problem)
+        {
+            return search.ExtendSearch(problem, fringe);
+        }
+    }
+}

SpriteCompiler/AI/HeuristicSearchNode.cs

@@ -0,0 +1,16 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+
+    public class HeuristicSearchNode<A, S, T, C> : AbstractSearchNode<A, S, T, C>, ISearchNode<A, S, T, C>
+        where T : HeuristicSearchNode<A, S, T, C>
+        where C : IPathCost<C>
+    {
+        public HeuristicSearchNode(T node, S state)
+            : base(node, state)
+        {
+        }
+
+        public C Heuristic { get; set; }
+    }
+}

SpriteCompiler/AI/INodeExpander.cs

@@ -0,0 +1,19 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+    using System.Collections.Generic;
+
+    /// <summary>
+    /// The NodeExpander class encapsulates a strategy of how the expand one state
+    /// into its successor states.In the simplest case, a node's state is expanded
+    /// using a problem-specific sucessor function, new search nodes are created and
+    /// the list is returned.
+    /// </summary>
+    public interface INodeExpander<A, S, T, C>
+        where T : ISearchNode<A, S, T, C>
+        where C : IComparable<C>
+    {
+        IEnumerable<T> Expand(ISearchProblem<A, S, C> problem, T node);
+        T CreateNode(T parent, S state);
+    }
+}

SpriteCompiler/AI/IPathCost.cs

@@ -0,0 +1,9 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+
+    public interface IPathCost<C> : IComparable<C>
+    {
+        C Add(C value);
+    }
+}

SpriteCompiler/AI/IQueue.cs

@@ -0,0 +1,12 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+
+    public interface IQueue<T>
+    {
+        void Clear();
+        bool Empty { get; }
+        T Remove();
+        void Enqueue(T item);
+    }
+}

SpriteCompiler/AI/ISearch.cs

@@ -0,0 +1,24 @@
+namespace SpriteCompiler.AI
+{
+    using System.Collections.Generic;
+
+    public interface ISearch<A, S, T, C>
+        where T : ISearchNode<A, S, T, C>
+        where C : IPathCost<C>
+    {
+        /// Perform a new search on the specified search problem using the given
+        /// initial state as a starting point.  The method will return an empty
+        /// list on failure.
+        IEnumerable<T> Search(ISearchProblem<A, S, C> problem, S initialState);
+
+        /**
+         * Continues to run a search after a solution is found.  This can
+         * be useful for enumerating over all the solutions to a search problem.
+         *
+         * @param problem
+         * @return Sequence of search nodes desribing a solution
+         */
+        IEnumerable<T> ExtendSearch(ISearchProblem<A, S, C> problem);
+
+    }
+}

SpriteCompiler/AI/ISearchNode.cs

@@ -0,0 +1,21 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <typeparam name="A">Action on a node</typeparam>
+    /// <typeparam name="S">State of the search</typeparam>
+    /// <typeparam name="T">Type of the parent</typeparam>
+    /// <typeparam name="C">Cost type</typeparam>
+    public interface ISearchNode<A, S, T, C> where C : IComparable<C>
+    {
+        A Action { get; set; }
+        C StepCost { get; set; }
+        C PathCost { get; }
+        int Depth { get; }
+        S State { get; }
+        T Parent { get; }
+    }
+}

SpriteCompiler/AI/ISearchProblem.cs

@@ -0,0 +1,14 @@
+namespace SpriteCompiler.AI
+{
+    using System;
+    using System.Collections.Generic;
+
+    public interface ISearchProblem<A, S, C>
+        where C : IComparable<C>
+    {
+        IDictionary<A, S> Successors(S state);
+        bool IsGoal(S state);
+        C StepCost(S fromState, A action, S toState);
+        C Heuristic(S state);
+    }
+}

SpriteCompiler/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    </startup>
+</configuration>

SpriteCompiler/Program.cs

@@ -0,0 +1,9 @@
+namespace SpriteCompiler
+{
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+        }
+    }
+}

SpriteCompiler/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("SpriteCompiler")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("SpriteCompiler")]
+[assembly: AssemblyCopyright("Copyright ©  2016")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("56f54ca9-17c1-45c6-915b-6fabf4dae5d0")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

SpriteCompiler/SpriteCompiler.csproj

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{56F54CA9-17C1-45C6-915B-6FABF4DAE5D0}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>SpriteCompiler</RootNamespace>
+    <AssemblyName>SpriteCompiler</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Priority Queue, Version=4.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\OptimizedPriorityQueue.4.0.0\lib\net45\Priority Queue.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="AI\AbstractAISearch.cs" />
+    <Compile Include="AI\AbstractSearchNode.cs" />
+    <Compile Include="AI\AStarComparer.cs" />
+    <Compile Include="AI\AStarSearch.cs" />
+    <Compile Include="AI\BestFirstSearch.cs" />
+    <Compile Include="AI\HeuristicSearchNode.cs" />
+    <Compile Include="AI\INodeExpander.cs" />
+    <Compile Include="AI\IPathCost.cs" />
+    <Compile Include="AI\IQueue.cs" />
+    <Compile Include="AI\ISearch.cs" />
+    <Compile Include="AI\ISearchNode.cs" />
+    <Compile Include="AI\ISearchProblem.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup />
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

SpriteCompiler/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="OptimizedPriorityQueue" version="4.0.0" targetFramework="net452" />
+</packages>