Example code

RVC.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.4.33110.190
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RVC", "RVC\RVC.csproj", "{5E87F4ED-4CB0-48C5-8377-73757507CBFE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5E87F4ED-4CB0-48C5-8377-73757507CBFE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5E87F4ED-4CB0-48C5-8377-73757507CBFE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5E87F4ED-4CB0-48C5-8377-73757507CBFE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5E87F4ED-4CB0-48C5-8377-73757507CBFE}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {5637E056-C171-4FEC-986C-1A874ABD5DC6}
+	EndGlobalSection
+EndGlobal

RVC/Program.cs

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+// See https://aka.ms/new-console-template for more information
+Console.WriteLine("Hello, World!");

RVC/RVC.cs

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+using System.Numerics;
+
+namespace RVC
+{
+    // The following logic applies.
+    // - The room has knowledge of its own size and what objects are in it
+    // - A Vacuum askes the room if it can be placed at a desired position
+    // - A vacuum can rotate unrestricted but has to ask the room to see if it can move
+    // - A Vacuum does not know its own position but has to ask the room for it
+    // - A Vacuum does know of its own rotation
+
+    internal class Floor
+    {
+        public Floor(float x, float y)
+        {
+            m_size = new(x, y);
+        }
+
+        private bool PositionIsOnFloor(Vector2 position)
+        {
+            // Bare in mind the size e.g. 3,3 of the floor means
+            // the positin range is within 0,0 and 2,2
+            return ((position.X < 0 || position.X >= m_size.X)
+                || (position.Y < 0 || position.Y >= m_size.Y));
+        }
+
+        public bool PlaceRobot(Vacuum vacuum, Vector2 position)
+        {
+            if (!PositionIsOnFloor(position))
+            {
+                return false;
+            }
+            // Check if vacuum is already on the floor
+            if (m_vacuums.ContainsKey(vacuum))
+            {
+                return false;
+            }
+            // Check if the position is occupied
+            // (Could be extended with other objects other than Vacuums)
+            else if (m_vacuums.ContainsValue(position))
+            {
+                return false;
+            }
+
+            m_vacuums[vacuum] = position;
+            return true;
+        }
+
+        public bool MoveRobot(Vacuum vacuum, Vector2 relativeMove)
+        {
+            if (!m_vacuums.TryGetValue(vacuum, out var position))
+            {
+                return false;
+            }
+
+            var newPosition = position + relativeMove;
+            if (m_vacuums.ContainsValue(newPosition))
+            {
+                return false;
+            }
+
+            m_vacuums[vacuum] = newPosition;
+            return true;
+        }
+
+        public Vector2 GetRobotPosition(Vacuum vacuum) => m_vacuums[vacuum];
+
+        private Vector2 m_size;
+
+        private readonly Dictionary<Vacuum, Vector2> m_vacuums = new();
+    }
+
+    internal class Vacuum
+    {
+        public enum Movement
+        {
+            A,
+            W,
+            S,
+            D,
+        }
+
+        public enum Orientation
+        {
+            W,
+            N,
+            E,
+            S,
+        }
+
+        public Vacuum(Floor floor)
+        {
+            m_floor = floor;
+        }
+
+        public bool Placed { private set; get; } = false;
+
+        public bool Move(Movement move)
+        {
+            // Rotation is always allowed as it keeps the position
+            switch (move)
+            {
+                // Rotate CCW
+                case Movement.A:
+                    m_orientation = new(-m_orientation.Y, m_orientation.X);
+                    return true;
+                // Rotate CW
+                case Movement.D:
+                    m_orientation = new(m_orientation.Y, -m_orientation.X);
+                    return true;
+                // Forward
+                case Movement.W:
+                    return m_floor.MoveRobot(this, m_orientation);
+                // Backward
+                case Movement.S:
+                    return m_floor.MoveRobot(this, -m_orientation);
+            }
+            return false;
+        }
+
+        public bool Place(Vector2 position, Orientation orientation)
+        {
+            if (Placed)
+            {
+                // already placed
+                return false;
+            }
+
+            bool success = m_floor.PlaceRobot(this, position);
+            if (success)
+            {
+                Placed = true;
+                m_orientation = m_orientationToVector[orientation];
+            }
+            return success;
+        }
+
+        public Orientation GetOrientation() => m_orientationToVector.FirstOrDefault(x => x.Value == m_orientation).Key;
+
+        public (float, float) GetPosition()
+        {
+            var pos = m_floor.GetRobotPosition(this);
+            return (pos.X, pos.Y);
+        }
+
+        private Floor m_floor;
+        private Vector2 m_orientation;
+
+        private Dictionary<Orientation, Vector2> m_orientationToVector = new()
+        {
+            { Orientation.W, new(-1, 0) },
+            { Orientation.N, new(0, 1) },
+            { Orientation.E, new(1, 0) },
+            { Orientation.S, new(0, -1) },
+        };
+    }
+}

RVC/RVC.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

RVC/obj/Debug/net6.0/.NETCoreApp,Version=v6.0.AssemblyAttributes.cs

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+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v6.0", FrameworkDisplayName = ".NET 6.0")]

RVC/obj/Debug/net6.0/RVC.AssemblyInfo.cs

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+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("RVC")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0")]
+[assembly: System.Reflection.AssemblyProductAttribute("RVC")]
+[assembly: System.Reflection.AssemblyTitleAttribute("RVC")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// Generated by the MSBuild WriteCodeFragment class.
+

RVC/obj/Debug/net6.0/RVC.AssemblyInfoInputs.cache

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+c22bea74c0dc332b4a3f050f9be278acf710d9f7

RVC/obj/Debug/net6.0/RVC.GeneratedMSBuildEditorConfig.editorconfig

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+is_global = true
+build_property.TargetFramework = net6.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = 
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = RVC
+build_property.ProjectDir = D:\Git\RVC-To-Jonas\RVC\

RVC/obj/Debug/net6.0/RVC.GlobalUsings.g.cs

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+// <auto-generated/>
+global using global::System;
+global using global::System.Collections.Generic;
+global using global::System.IO;
+global using global::System.Linq;
+global using global::System.Net.Http;
+global using global::System.Threading;
+global using global::System.Threading.Tasks;

RVC/obj/RVC.csproj.nuget.dgspec.json

@@ -0,0 +1,67 @@
+{
+  "format": 1,
+  "restore": {
+    "D:\\Git\\RVC-To-Jonas\\RVC\\RVC.csproj": {}
+  },
+  "projects": {
+    "D:\\Git\\RVC-To-Jonas\\RVC\\RVC.csproj": {
+      "version": "1.0.0",
+      "restore": {
+        "projectUniqueName": "D:\\Git\\RVC-To-Jonas\\RVC\\RVC.csproj",
+        "projectName": "RVC",
+        "projectPath": "D:\\Git\\RVC-To-Jonas\\RVC\\RVC.csproj",
+        "packagesPath": "C:\\Users\\phils\\.nuget\\packages\\",
+        "outputPath": "D:\\Git\\RVC-To-Jonas\\RVC\\obj\\",
+        "projectStyle": "PackageReference",
+        "fallbackFolders": [
+          "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
+        ],
+        "configFilePaths": [
+          "C:\\Users\\phils\\AppData\\Roaming\\NuGet\\NuGet.Config",
+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
+        ],
+        "originalTargetFrameworks": [
+          "net6.0"
+        ],
+        "sources": {
+          "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
+          "https://api.nuget.org/v3/index.json": {}
+        },
+        "frameworks": {
+          "net6.0": {
+            "targetAlias": "net6.0",
+            "projectReferences": {}
+          }
+        },
+        "warningProperties": {
+          "warnAsError": [
+            "NU1605"
+          ]
+        }
+      },
+      "frameworks": {
+        "net6.0": {
+          "targetAlias": "net6.0",
+          "imports": [
+            "net461",
+            "net462",
+            "net47",
+            "net471",
+            "net472",
+            "net48",
+            "net481"
+          ],
+          "assetTargetFallback": true,
+          "warn": true,
+          "frameworkReferences": {
+            "Microsoft.NETCore.App": {
+              "privateAssets": "all"
+            }
+          },
+          "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\7.0.100\\RuntimeIdentifierGraph.json"
+        }
+      }
+    }
+  }
+}

RVC/obj/RVC.csproj.nuget.g.props

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+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <RestoreSuccess Condition=" '$(RestoreSuccess)' == '' ">True</RestoreSuccess>
+    <RestoreTool Condition=" '$(RestoreTool)' == '' ">NuGet</RestoreTool>
+    <ProjectAssetsFile Condition=" '$(ProjectAssetsFile)' == '' ">$(MSBuildThisFileDirectory)project.assets.json</ProjectAssetsFile>
+    <NuGetPackageRoot Condition=" '$(NuGetPackageRoot)' == '' ">$(UserProfile)\.nuget\packages\</NuGetPackageRoot>
+    <NuGetPackageFolders Condition=" '$(NuGetPackageFolders)' == '' ">C:\Users\phils\.nuget\packages\;C:\Program Files (x86)\Microsoft Visual Studio\Shared\NuGetPackages</NuGetPackageFolders>
+    <NuGetProjectStyle Condition=" '$(NuGetProjectStyle)' == '' ">PackageReference</NuGetProjectStyle>
+    <NuGetToolVersion Condition=" '$(NuGetToolVersion)' == '' ">6.4.0</NuGetToolVersion>
+  </PropertyGroup>
+  <ItemGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <SourceRoot Include="C:\Users\phils\.nuget\packages\" />
+    <SourceRoot Include="C:\Program Files (x86)\Microsoft Visual Studio\Shared\NuGetPackages\" />
+  </ItemGroup>
+</Project>

RVC/obj/RVC.csproj.nuget.g.targets

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+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" />

RVC/obj/project.assets.json

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+{
+  "version": 3,
+  "targets": {
+    "net6.0": {}
+  },
+  "libraries": {},
+  "projectFileDependencyGroups": {
+    "net6.0": []
+  },
+  "packageFolders": {
+    "C:\\Users\\phils\\.nuget\\packages\\": {},
+    "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages": {}
+  },
+  "project": {
+    "version": "1.0.0",
+    "restore": {
+      "projectUniqueName": "D:\\Git\\RVC-To-Jonas\\RVC\\RVC.csproj",
+      "projectName": "RVC",
+      "projectPath": "D:\\Git\\RVC-To-Jonas\\RVC\\RVC.csproj",
+      "packagesPath": "C:\\Users\\phils\\.nuget\\packages\\",
+      "outputPath": "D:\\Git\\RVC-To-Jonas\\RVC\\obj\\",
+      "projectStyle": "PackageReference",
+      "fallbackFolders": [
+        "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
+      ],
+      "configFilePaths": [
+        "C:\\Users\\phils\\AppData\\Roaming\\NuGet\\NuGet.Config",
+        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
+        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
+      ],
+      "originalTargetFrameworks": [
+        "net6.0"
+      ],
+      "sources": {
+        "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
+        "https://api.nuget.org/v3/index.json": {}
+      },
+      "frameworks": {
+        "net6.0": {
+          "targetAlias": "net6.0",
+          "projectReferences": {}
+        }
+      },
+      "warningProperties": {
+        "warnAsError": [
+          "NU1605"
+        ]
+      }
+    },
+    "frameworks": {
+      "net6.0": {
+        "targetAlias": "net6.0",
+        "imports": [
+          "net461",
+          "net462",
+          "net47",
+          "net471",
+          "net472",
+          "net48",
+          "net481"
+        ],
+        "assetTargetFallback": true,
+        "warn": true,
+        "frameworkReferences": {
+          "Microsoft.NETCore.App": {
+            "privateAssets": "all"
+          }
+        },
+        "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\7.0.100\\RuntimeIdentifierGraph.json"
+      }
+    }
+  }
+}

RVC/obj/project.nuget.cache

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+{
+  "version": 2,
+  "dgSpecHash": "HoCMqrNdHWTpH0gkmHKbhGesSJe7u8yg4xt7cA65NcYzrlXDPBRXl/C6eUFwzKFOYPcm7QJO2Lt4sePrwsBLew==",
+  "success": true,
+  "projectFilePath": "D:\\Git\\RVC-To-Jonas\\RVC\\RVC.csproj",
+  "expectedPackageFiles": [],
+  "logs": []
+}