Fixed - it is now working

.vscode/launch.json

@@ -0,0 +1,27 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            // Use IntelliSense to find out which attributes exist for C# debugging
+            // Use hover for the description of the existing attributes
+            // For further information visit https://github.com/dotnet/vscode-csharp/blob/main/debugger-launchjson.md
+            "name": "Launch",
+            "type": "mono",
+            "request": "launch",
+            "preLaunchTask": "build",
+            // If you have changed target frameworks, make sure to update the program path.
+            "program": "${workspaceFolder}/mobile-eggbert-fna/bin/Debug/net4.0/mobile-eggbert-fna.dll",
+            "args": [],
+            "cwd": "${workspaceFolder}/mobile-eggbert-fna",
+            // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console
+            "env": {
+                "LD_LIBRARY_PATH": "${workspaceRoot}/fnalibs/fnalibs/lib/lib64/"
+            }
+        },
+        {
+            "name": "Attach",
+            "type": "mono",
+            "request": "attach"
+        }
+    ]
+}

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "dotnet.preferCSharpExtension": true
+}

.vscode/tasks.json

@@ -0,0 +1,41 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "build",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "build",
+                "${workspaceFolder}/mobile-eggbert-fna.sln",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary;ForceNoAlign"
+            ],
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "publish",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "publish",
+                "${workspaceFolder}/mobile-eggbert-fna.sln",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary;ForceNoAlign"
+            ],
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "watch",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "watch",
+                "run",
+                "--project",
+                "${workspaceFolder}/mobile-eggbert-fna.sln"
+            ],
+            "problemMatcher": "$msCompile"
+        }
+    ]
+}

FNA.patch

@@ -0,0 +1,210 @@
+diff --git a/FNA.Core.csproj b/FNA.Core.csproj
+index 5c4dd1a..335a213 100644
+--- a/FNA.Core.csproj
++++ b/FNA.Core.csproj
+@@ -1,6 +1,6 @@
+ <Project Sdk="Microsoft.NET.Sdk">
+ 	<PropertyGroup>
+-		<TargetFramework>net8.0</TargetFramework>
++		<TargetFramework>net4.0</TargetFramework>
+ 	</PropertyGroup>
+ 	<PropertyGroup>
+ 		<EnableDefaultItems>false</EnableDefaultItems>
+diff --git a/abi/Microsoft.Xna.Framework.Game.cs b/abi/Microsoft.Xna.Framework.Game.cs
+index 18b303a..cfac6a3 100644
+--- a/abi/Microsoft.Xna.Framework.Game.cs
++++ b/abi/Microsoft.Xna.Framework.Game.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.IGameComponent))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.IUpdateable))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.GameComponent))]
+diff --git a/abi/Microsoft.Xna.Framework.Game.csproj b/abi/Microsoft.Xna.Framework.Game.csproj
+index 6873430..c646fb0 100644
+--- a/abi/Microsoft.Xna.Framework.Game.csproj
++++ b/abi/Microsoft.Xna.Framework.Game.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.GamerServices.cs b/abi/Microsoft.Xna.Framework.GamerServices.cs
+index 5c1b28c..50b7ac2 100644
+--- a/abi/Microsoft.Xna.Framework.GamerServices.cs
++++ b/abi/Microsoft.Xna.Framework.GamerServices.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.GamerServices.SignedInEventArgs))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.GamerServices.SignedOutEventArgs))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.GamerServices.InviteAcceptedEventArgs))]
+diff --git a/abi/Microsoft.Xna.Framework.GamerServices.csproj b/abi/Microsoft.Xna.Framework.GamerServices.csproj
+index c5382ab..66afa4d 100644
+--- a/abi/Microsoft.Xna.Framework.GamerServices.csproj
++++ b/abi/Microsoft.Xna.Framework.GamerServices.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.Graphics.cs b/abi/Microsoft.Xna.Framework.Graphics.cs
+index b71e252..73beede 100644
+--- a/abi/Microsoft.Xna.Framework.Graphics.cs
++++ b/abi/Microsoft.Xna.Framework.Graphics.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Graphics.RenderTargetBinding))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Graphics.VertexBufferBinding))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Graphics.GraphicsDevice))]
+diff --git a/abi/Microsoft.Xna.Framework.Graphics.csproj b/abi/Microsoft.Xna.Framework.Graphics.csproj
+index 1312ccc..e89438c 100644
+--- a/abi/Microsoft.Xna.Framework.Graphics.csproj
++++ b/abi/Microsoft.Xna.Framework.Graphics.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.Input.Touch.cs b/abi/Microsoft.Xna.Framework.Input.Touch.cs
+index b7ccfdf..dbf675b 100644
+--- a/abi/Microsoft.Xna.Framework.Input.Touch.cs
++++ b/abi/Microsoft.Xna.Framework.Input.Touch.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Input.Touch.GestureType))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Input.Touch.GestureSample))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Input.Touch.TouchCollection))]
+diff --git a/abi/Microsoft.Xna.Framework.Input.Touch.csproj b/abi/Microsoft.Xna.Framework.Input.Touch.csproj
+index ddcd898..fdfc853 100644
+--- a/abi/Microsoft.Xna.Framework.Input.Touch.csproj
++++ b/abi/Microsoft.Xna.Framework.Input.Touch.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.Net.cs b/abi/Microsoft.Xna.Framework.Net.cs
+index 3e133ae..8ca694b 100644
+--- a/abi/Microsoft.Xna.Framework.Net.cs
++++ b/abi/Microsoft.Xna.Framework.Net.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Net.NetworkSessionEndedEventArgs))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Net.GamerJoinedEventArgs))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Net.GamerLeftEventArgs))]
+diff --git a/abi/Microsoft.Xna.Framework.Net.csproj b/abi/Microsoft.Xna.Framework.Net.csproj
+index 1a821e9..8b99048 100644
+--- a/abi/Microsoft.Xna.Framework.Net.csproj
++++ b/abi/Microsoft.Xna.Framework.Net.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.Storage.cs b/abi/Microsoft.Xna.Framework.Storage.cs
+index 6061690..e6a1da0 100644
+--- a/abi/Microsoft.Xna.Framework.Storage.cs
++++ b/abi/Microsoft.Xna.Framework.Storage.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Storage.StorageDevice))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Storage.StorageContainer))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Storage.StorageDeviceNotConnectedException))]
+\ No newline at end of file
+diff --git a/abi/Microsoft.Xna.Framework.Storage.csproj b/abi/Microsoft.Xna.Framework.Storage.csproj
+index 188ca56..c5129ef 100644
+--- a/abi/Microsoft.Xna.Framework.Storage.csproj
++++ b/abi/Microsoft.Xna.Framework.Storage.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.Video.cs b/abi/Microsoft.Xna.Framework.Video.cs
+index 04fd033..a476eb6 100644
+--- a/abi/Microsoft.Xna.Framework.Video.cs
++++ b/abi/Microsoft.Xna.Framework.Video.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Media.VideoSoundtrackType))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Media.Video))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Media.VideoPlayer))]
+\ No newline at end of file
+diff --git a/abi/Microsoft.Xna.Framework.Video.csproj b/abi/Microsoft.Xna.Framework.Video.csproj
+index 3ef8084..47d73c1 100644
+--- a/abi/Microsoft.Xna.Framework.Video.csproj
++++ b/abi/Microsoft.Xna.Framework.Video.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.Xact.cs b/abi/Microsoft.Xna.Framework.Xact.cs
+index 36eb974..2bc60c1 100644
+--- a/abi/Microsoft.Xna.Framework.Xact.cs
++++ b/abi/Microsoft.Xna.Framework.Xact.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Audio.RendererDetail))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Audio.Cue))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Audio.AudioStopOptions))]
+diff --git a/abi/Microsoft.Xna.Framework.Xact.csproj b/abi/Microsoft.Xna.Framework.Xact.csproj
+index b467ac6..047ccac 100644
+--- a/abi/Microsoft.Xna.Framework.Xact.csproj
++++ b/abi/Microsoft.Xna.Framework.Xact.csproj
+@@ -1,5 +1,5 @@
+ <?xml version="1.0" encoding="utf-8"?>
+-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++<Project DefaultTargets="Build" ToolsVersion="8.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+   <PropertyGroup>
+     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+diff --git a/abi/Microsoft.Xna.Framework.cs b/abi/Microsoft.Xna.Framework.cs
+index eade86d..0077bb1 100644
+--- a/abi/Microsoft.Xna.Framework.cs
++++ b/abi/Microsoft.Xna.Framework.cs
+@@ -1,6 +1,6 @@
+ using System.Reflection;
+ using System.Runtime.CompilerServices;
+-[assembly: AssemblyVersion("4.0.0.0")]
++[assembly: AssemblyVersion("8.0.0.0")]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Media.MediaState))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Input.Keyboard))]
+ [assembly: TypeForwardedToAttribute(typeof(Microsoft.Xna.Framework.Input.Mouse))]

README.md

@@ -0,0 +1,29 @@
+# mobile-eggbert-fna
+
+
+## Init submodules
+
+git submodule update --init --recursive
+cd FNA &&  git submodule update --init --recursive
+cd ../fnalibs &&  git submodule update --init --recursive && cd ..
+
+## Apply patches
+
+cd FNA && git apply ../FNA.patch
+cd ../fnalibs && git apply ../fnalibs.patch && cd ..
+
+## build
+
+cd mobile-eggbert-fna && dotnet build
+
+## Add libraries base on the platform
+
+For Linux, add these files to directory mobile-eggbert-fna/mobile-eggbert-fna/bin/Debug/net4.0
+
+## Copy directories Content and worlds to directory mobile-eggbert-fna/mobile-eggbert-fna/bin/
+
+## Run the game
+
+Go to mobile-eggbert-fna/mobile-eggbert-fna/bin/ and run:
+On Linux: mono mobile-eggbert-fna.exe
+On Windows: run directly mobile-eggbert-fna.exe

fnalibs.patch

@@ -0,0 +1,13 @@
+diff --git a/fnalibs/fnalibs.csproj b/fnalibs/fnalibs.csproj
+index a9f2197..ef9c63f 100644
+--- a/fnalibs/fnalibs.csproj
++++ b/fnalibs/fnalibs.csproj
+@@ -1,7 +1,7 @@
+ <Project Sdk="Microsoft.NET.Sdk">
+ 
+   <PropertyGroup>
+-    <TargetFramework>netstandard2.0</TargetFramework>
++    <TargetFramework>net4.0</TargetFramework>
+     <IncludeBuildOutput>false</IncludeBuildOutput>
+     <NoBuild>true</NoBuild>
+     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>    

mobile-eggbert-fna.sln

@@ -5,6 +5,8 @@ VisualStudioVersion = 17.0.31903.59
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "mobile-eggbert-fna", "mobile-eggbert-fna\mobile-eggbert-fna.csproj", "{6A193885-A483-41B9-992C-DDE66442A6F4}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FNA", "FNA\FNA.csproj", "{35253CE1-C864-4CD3-8249-4D1319748E8F}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU

mobile-eggbert-fna/Accelerometer.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WindowsPhoneSpeedyBlupi
+{
+    public interface Accelerometer
+    {
+        void Start();
+        void Stop();
+        event EventHandler<AccelerometerEventArgs> CurrentValueChanged;
+    }
+}

mobile-eggbert-fna/AccelerometerDummyImpl.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WindowsPhoneSpeedyBlupi
+{
+    public class AccelerometerDummyImpl : Accelerometer
+    {
+        public event EventHandler<AccelerometerEventArgs> CurrentValueChanged;
+
+        public void Start()
+        {
+            //throw new AccelerometerFailedException();
+        }
+
+        public void Stop()
+        {
+            //throw new AccelerometerFailedException();
+        }
+    }
+}

mobile-eggbert-fna/AccelerometerEventArgs.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WindowsPhoneSpeedyBlupi
+{
+    public class AccelerometerEventArgs : EventArgs
+    {
+
+        public float X { get; }
+        public float Y { get; }
+        public float Z { get; }
+
+        public AccelerometerEventArgs(float x, float y, float z)
+        {
+            X = x;
+            Y = y;
+            Z = z;
+        }
+    }
+}

mobile-eggbert-fna/AccelerometerFactory.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WindowsPhoneSpeedyBlupi
+{
+    public class AccelerometerFactory
+    {
+        public static Accelerometer Create() { return new AccelerometerDummyImpl(); }
+    }
+}

mobile-eggbert-fna/AccelerometerFailedException.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WindowsPhoneSpeedyBlupi
+{
+    public class AccelerometerFailedException : Exception
+    {
+    }
+}