Merge branch 'main' into release

# Conflicts:
#	build.cake

.githooks/pre-push

@@ -0,0 +1,8 @@
+#!/bin/sh
+command -v git-lfs >/dev/null 2>&1 || { echo >&2 "\nThis repository is configured for Git LFS but 'git-lfs' was not found on your path. If you no longer wish to use Git LFS, remove this hook by deleting the 'pre-push' file in the hooks directory (set by 'core.hookspath'; usually '.git/hooks').\n"; exit 2; }
+git lfs pre-push "$@"
+
+if ! git diff origin --name-status | grep -E -q "M\s+CHANGELOG.md"; then
+    echo "The changelog was not updated. Please document your changes in CHANGELOG.md before pushing."
+    exit 1
+fi

.github/workflows/enforce-changelog.yml

@@ -0,0 +1,11 @@
+on: pull_request
+jobs:
+  enforce-changelog:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dangoslen/changelog-enforcer@v3
+        with:
+          changeLogPath: CHANGELOG.md
+          missingUpdateErrorMessage: |
+            The changelog was not updated. Please document your changes in CHANGELOG.md.
+            Run `git config core.hooksPath .githooks` to enable a git hook that ensures you updated the changelog before pushing.

.github/workflows/main.yml

@@ -0,0 +1,51 @@
+on: [push, pull_request]
+jobs:
+  build-publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: '8.0.x'
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v3
+      - name: Restore tools
+        run: dotnet tool restore
+      - name: Run cake
+        uses: coactions/setup-xvfb@v1
+        with:
+          run: dotnet cake --target Publish --branch ${{ github.ref_name }}
+        env:
+          NUGET_KEY: ${{ secrets.NUGET_KEY }}
+          BAGET_KEY: ${{ secrets.BAGET_KEY }}
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: '8.0.x'
+      - name: Restore tools
+        run: dotnet tool restore
+      - name: Run cake
+        run: dotnet cake --target Document --branch $GITHUB_REF_NAME
+      - name: Deploy
+        if: github.event_name == 'push' && github.ref_name == 'release'
+        # this is a beautiful way to deploy a website and i will not take any criticism
+        run: |
+          curl -L --output cloudflared.deb https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64.deb && sudo dpkg -i cloudflared.deb
+          mkdir ~/.ssh && echo "${{ secrets.ELLBOT_KEY }}" > ~/.ssh/id_rsa && chmod 600 ~/.ssh/id_rsa
+          rsync -rv --delete -e 'ssh -o "ProxyCommand cloudflared access ssh --hostname %h" -o "StrictHostKeyChecking=no"' Docs/_site/. ellbot@ssh.ellpeck.de:/var/www/MLEM

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "FNA"]
-	path = FNA
+	path = ThirdParty/FNA
 	url = https://github.com/FNA-XNA/FNA
 [submodule "FontStashSharp"]
-	path = FontStashSharp
+	path = ThirdParty/FontStashSharp
 	url = https://github.com/FontStashSharp/FontStashSharp

CHANGELOG.md

@@ -2,6 +2,7 @@
 MLEM tries to adhere to [semantic versioning](https://semver.org/). Potentially breaking changes are written in **bold**.
 
 Jump to version:
+- [6.3.0](#630)
 - [6.2.0](#620)
 - [6.1.0](#610)
 - [6.0.0](#600)
@@ -10,6 +11,57 @@ Jump to version:
 - [5.1.0](#510)
 - [5.0.0](#500)
 
+## 6.3.0
+
+### MLEM
+Additions
+- Added GraphicsExtensions.WithRenderTargets, a multi-target version of WithRenderTarget
+- Added Zero, One, Linear and Clamp to Easings
+- Added GetRandomEntry and GetRandomWeightedEntry to SingleRandom
+- Added the ability to draw single corners of AutoTiling's extended auto tiles
+- Added ColorHelper.TryFromHexString, a non-throwing version of FromHexString
+- Added ToHexStringRgba and ToHexStringRgb to ColorExtensions
+
+Improvements
+- Stopped the text formatter throwing if a color can't be parsed
+- Improved text formatter tokenization performance
+- Allow using control and arrow keys to move the visible area of a text input
+- Allow formatting codes applied later to override settings of earlier ones
+
+Fixes
+- Fixed TextInput not working correctly when using surrogate pairs
+- Fixed InputHandler touch states being initialized incorrectly when touch handling is disabled
+- Fixed empty NinePatch regions stalling when using tile mode
+- Fixed bold and italic formatting code closing tags working on each other
+
+### MLEM.Ui
+Additions
+- Added UiControls.NavType, which stores the most recently used type of ui navigation
+- Added SetWidthBasedOnAspect and SetHeightBasedOnAspect to images
+- Added the ability to set a custom SamplerState for images
+- Added some useful additional constructors to various elements
+
+Improvements
+- Allow scrolling panels to contain other scrolling panels
+- Allow dropdowns to have scrolling panels
+- Improved Panel performance when adding and removing a lot of children
+- Don't reset the caret position of a text field when selecting or deselecting it
+- Improved UiParser.ParseImage with locks and a callback action
+
+Fixes
+- Fixed panels updating their relevant children too much when the scroll bar is hidden
+- Fixed a stack overflow exception when a panel's scroll bar auto-hiding causes elements to gain height
+- Fixed scrolling panels calculating their height incorrectly when their first child is hidden
+
+### MLEM.Extended
+Improvements
+- Updated to FontStashSharp 1.3.0's API
+- Expose character and line spacing in GenericStashFont
+
+### MLEM.Data
+Fixes
+- Fixed various exception types not being wrapped by ContentLoadExceptions when loading raw or JSON content
+
 ## 6.2.0
 
 ### MLEM

Demos.Android/Activity1.cs

@@ -48,10 +48,10 @@ public class Activity1 : AndroidGameActivity {
         base.OnWindowFocusChanged(hasFocus);
         // hide the status bar
         if (hasFocus) {
-#pragma warning disable CA1422
+#pragma warning disable CS0618
             // TODO this is deprecated, find out how to replace it
             this.Window.DecorView.SystemUiVisibility = (StatusBarVisibility) (SystemUiFlags.ImmersiveSticky | SystemUiFlags.LayoutStable | SystemUiFlags.LayoutHideNavigation | SystemUiFlags.LayoutFullscreen | SystemUiFlags.HideNavigation | SystemUiFlags.Fullscreen);
-#pragma warning restore CA1422
+#pragma warning restore CS0618
         }
     }
 

Demos.Android/Demos.Android.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFramework>net7.0-android</TargetFramework>
+        <TargetFramework>net8.0-android</TargetFramework>
         <SupportedOSPlatformVersion>31</SupportedOSPlatformVersion>
         <OutputType>Exe</OutputType>
         <ApplicationId>de.ellpeck.mlem.demos.android</ApplicationId>

Demos.DesktopGL/Demos.DesktopGL.FNA.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <ApplicationIcon>Icon.ico</ApplicationIcon>
         <AssemblyName>MLEM Desktop Demos</AssemblyName>
         <RootNamespace>Demos.DesktopGL</RootNamespace>
@@ -21,7 +21,7 @@
 
     <ItemGroup>
         <PackageReference Include="MonoGame.Content.Builder.Task" Version="3.8.1.303" />
-        <ProjectReference Include="..\FNA\FNA.Core.csproj" />
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.Core.csproj" />
     </ItemGroup>
 
     <ItemGroup>
@@ -29,7 +29,7 @@
         <Content Include="..\Demos\Content\*\**" />
         <EmbeddedResource Include="Icon.ico" />
         <EmbeddedResource Include="Icon.bmp" />
-        <Content Include="../FnaNative/**">
+        <Content Include="../ThirdParty/Native/**">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
             <Link>%(Filename)%(Extension)</Link>
         </Content>

Demos.DesktopGL/Demos.DesktopGL.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <ApplicationIcon>Icon.ico</ApplicationIcon>
         <AssemblyName>MLEM Desktop Demos</AssemblyName>
         <IsPackable>false</IsPackable>
@@ -26,9 +26,4 @@
         <EmbeddedResource Include="Icon.ico" />
         <EmbeddedResource Include="Icon.bmp" />
     </ItemGroup>
-
-    <Target Name="RestoreDotnetTools" BeforeTargets="Restore">
-        <Message Text="Restoring dotnet tools" Importance="High" />
-        <Exec Command="dotnet tool restore" />
-    </Target>
 </Project>

Demos/Content/Markdown.md

@@ -12,12 +12,16 @@ Strikethrough with ~~two tildes~~.
 [I'm an inline-style link](https://www.google.com)  
 <http://www.example.com>
 
+Logo:
 ![](https://raw.githubusercontent.com/Ellpeck/MLEM/main/Media/Logo.png)
 
+Wide logo:
+![](https://raw.githubusercontent.com/Ellpeck/MLEM/main/Media/Banner.png)
+
 Some `inline code` right here
 
 ```js
 function codeBlock() {
     
 }
-```
+```

Demos/Demos.FNA.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>netstandard2.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <RootNamespace>Demos</RootNamespace>
         <DefineConstants>$(DefineConstants);FNA</DefineConstants>
         <IsPackable>false</IsPackable>
@@ -14,7 +14,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <ProjectReference Include="..\FNA\FNA.Core.csproj">
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.Core.csproj">
             <PrivateAssets>all</PrivateAssets>
         </ProjectReference>
     </ItemGroup>

Demos/Demos.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>netstandard2.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <IsPackable>false</IsPackable>
     </PropertyGroup>
 

Demos/TextFormattingDemo.cs

@@ -15,7 +15,7 @@ namespace Demos {
 
         private const string Text =
             "MLEM's text formatting system allows for various <b>formatting codes</b> to be applied in the middle of a string. Here's a demonstration of some of them.\n\n" +
-            "You can write in <b>bold</i>, <i>italics</i>, <u>with an underline</u>, <st>strikethrough</st>, with a <s>drop shadow</s> whose <s #ff0000 4>color</s> and <s #000000 10>offset</s> you can modify in each application of the code, with an <o>outline</o> that you can also <o #ff0000 4>modify</o> <o #ff00ff 2>dynamically</o>, or with various types of <b>combined <c Pink>formatting</c> codes</b>.\n\n" +
+            "You can write in <b>bold</b>, <i>italics</i>, <u>with an underline</u>, <st>strikethrough</st>, with a <s>drop shadow</s> whose <s #ff0000 4>color</s> and <s #000000 10>offset</s> you can modify in each application of the code, with an <o>outline</o> that you can also <o #ff0000 4>modify</o> <o #ff00ff 2>dynamically</o>, or with various types of <b>combined <c Pink>formatting</c> codes</b>.\n\n" +
             "You can apply <c CornflowerBlue>custom</c> <c Yellow>colors</c> to text, including all default <c Orange>MonoGame colors</c> and <c #aabb00>inline custom colors</c>.\n\n" +
             "You can also use animations like <a wobbly>a wobbly one</a>, as well as create custom ones using the <a wobbly>Code class</a>.\n\n" +
             "You can also display <i grass> icons in your text, and use super<sup>script</sup> or sub<sub>script</sub> formatting!\n\n" +

Demos/UiDemo.cs

@@ -223,6 +223,15 @@ namespace Demos {
                 PositionOffset = new Vector2(0, 1)
             });
 
+            var subPanel = this.root.AddChild(new Panel(Anchor.AutoLeft, new Vector2(1, 25), Vector2.Zero, false, true) {
+                PositionOffset = new Vector2(0, 1),
+                Texture = null,
+                ChildPadding = Padding.Empty
+            });
+            subPanel.AddChild(new Paragraph(Anchor.AutoLeft, 1, "This is a nested scrolling panel!"));
+            for (var i = 1; i <= 5; i++)
+                subPanel.AddChild(new Button(Anchor.AutoLeft, new Vector2(1, 10), $"Button {i}") {PositionOffset = new Vector2(0, 1)});
+
             const string alignText = "Paragraphs can have <l Left>left</l> aligned text, <l Right>right</l> aligned text and <l Center>center</l> aligned text.";
             this.root.AddChild(new VerticalSpace(3));
             var alignPar = this.root.AddChild(new Paragraph(Anchor.AutoLeft, 1, alignText));

Docs/docfx.json

@@ -49,7 +49,7 @@
         "globalMetadata": {
             "_appTitle": "MLEM Documentation",
             "_appLogoPath": "Logo.svg",
-            "_appFooter": "<a href=\"https://github.com/Ellpeck/MLEM\">&copy; 2019-2023 Ellpeck</a> &ndash; <a href=\"https://ellpeck.de/impressum\">Impressum</a> &ndash; <a href=\"https://ellpeck.de/privacy\">Privacy</a> &ndash; <a href=\"https://status.ellpeck.de\">Status</a>",
+            "_appFooter": "<a href=\"https://github.com/Ellpeck/MLEM\">&copy; 2019-2024 Ellpeck</a> &ndash; <a href=\"https://ellpeck.de/impressum\">Impressum</a> &ndash; <a href=\"https://ellpeck.de/privacy\">Privacy</a> &ndash; <a href=\"https://status.ellpeck.de\">Status</a>",
             "_enableSearch": true
         },
         "dest": "_site",

FNA

@@ -1 +0,0 @@
-Subproject commit 697cc63662914c0dc26c500bc9b8498b5ca8a68f

FontStashSharp

@@ -1 +0,0 @@
-Subproject commit f11f97b709e50960dd8ce1f727974744c4f8a0dd

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019-2023 Ellpeck
+Copyright (c) 2019-2024 Ellpeck
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

MLEM.Data/Content/RawContentManager.cs

@@ -100,7 +100,7 @@ namespace MLEM.Data.Content {
                                 r.Name = assetName;
                             return t;
                         }
-                    } catch (FileNotFoundException) {}
+                    } catch (IOException) {}
                 }
             }
             throw new ContentLoadException($"Asset {assetName} not found. Tried files {string.Join(", ", triedFiles)}");

MLEM.Data/ContentExtensions.cs

@@ -68,7 +68,7 @@ namespace MLEM.Data {
                         using (var reader = new JsonTextReader(stream))
                             return serializerToUse.Deserialize<T>(reader);
                     }
-                } catch (FileNotFoundException) {}
+                } catch (IOException) {}
             }
             throw new ContentLoadException($"Asset {name} not found. Tried files {string.Join(", ", triedFiles)}");
         }

MLEM.Data/MLEM.Data.FNA.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
         <RootNamespace>MLEM.Data</RootNamespace>
         <DefineConstants>$(DefineConstants);FNA</DefineConstants>
         <NoWarn>NU1701</NoWarn>
@@ -28,14 +28,14 @@
         <PackageReference Include="Lidgren.Network" Version="1.0.2">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
-        <PackageReference Include="Newtonsoft.Json" Version="13.0.2">
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.3">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
         <PackageReference Include="Newtonsoft.Json.Bson" Version="1.0.2">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
 
-        <ProjectReference Include="..\FNA\FNA.csproj">
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.csproj">
             <PrivateAssets>all</PrivateAssets>
         </ProjectReference>
     </ItemGroup>

MLEM.Data/MLEM.Data.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
         <NoWarn>NU1701</NoWarn>
     </PropertyGroup>
 

MLEM.Extended/Font/GenericStashFont.cs

@@ -11,6 +11,7 @@ namespace MLEM.Extended.Font {
         /// The <see cref="SpriteFontBase"/> that is being wrapped by this generic font
         /// </summary>
         public readonly SpriteFontBase Font;
+
         /// <inheritdoc />
         public override GenericFont Bold { get; }
         /// <inheritdoc />
@@ -18,6 +19,15 @@ namespace MLEM.Extended.Font {
         /// <inheritdoc />
         public override float LineHeight => this.Font.LineHeight;
 
+        /// <summary>
+        /// The character spacing that will be passed to the underlying <see cref="Font"/>.
+        /// </summary>
+        public float CharacterSpacing { get; set; }
+        /// <summary>
+        /// The line spacing that will be passed to the underlying <see cref="Font"/>.
+        /// </summary>
+        public float LineSpacing { get; set; }
+
         /// <summary>
         /// Creates a new generic font using <see cref="SpriteFontBase"/>.
         /// Optionally, a bold and italic version of the font can be supplied.
@@ -33,12 +43,12 @@ namespace MLEM.Extended.Font {
 
         /// <inheritdoc />
         protected override float MeasureCharacter(int codePoint) {
-            return this.Font.MeasureString(CodePointSource.ToString(codePoint)).X;
+            return this.Font.MeasureString(CodePointSource.ToString(codePoint), null, this.CharacterSpacing, this.LineSpacing).X;
         }
 
         /// <inheritdoc />
         protected override void DrawCharacter(SpriteBatch batch, int codePoint, string character, Vector2 position, Color color, float rotation, Vector2 scale, SpriteEffects effects, float layerDepth) {
-            this.Font.DrawText(batch, character, position, color, scale, rotation, Vector2.Zero, layerDepth);
+            this.Font.DrawText(batch, character, position, color, rotation, Vector2.Zero, scale, layerDepth, this.CharacterSpacing, this.LineSpacing);
         }
 
     }

MLEM.Extended/MLEM.Extended.FNA.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
         <RootNamespace>MLEM.Extended</RootNamespace>
         <DefineConstants>$(DefineConstants);FNA</DefineConstants>
         <NoWarn>NU1702</NoWarn>
@@ -24,10 +24,10 @@
     <ItemGroup>
         <ProjectReference Include="..\MLEM\MLEM.FNA.csproj" />
 
-        <ProjectReference Include="..\FontStashSharp\src\XNA\FontStashSharp.FNA.csproj">
+        <ProjectReference Include="..\ThirdParty\FontStashSharp\src\XNA\FontStashSharp.FNA.csproj">
             <PrivateAssets>all</PrivateAssets>
         </ProjectReference>
-        <ProjectReference Include="..\FNA\FNA.csproj">
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.csproj">
             <PrivateAssets>all</PrivateAssets>
         </ProjectReference>
 

MLEM.Extended/MLEM.Extended.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
     </PropertyGroup>
 
     <PropertyGroup>
@@ -27,7 +27,7 @@
         <PackageReference Include="MonoGame.Extended.Tiled" Version="3.8.0">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
-        <PackageReference Include="FontStashSharp.MonoGame" Version="1.2.8">
+        <PackageReference Include="FontStashSharp.MonoGame" Version="1.3.3">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
         <PackageReference Include="MonoGame.Framework.DesktopGL" Version="3.8.0.1641">

MLEM.Extended/Tiled/TiledExtensions.cs

@@ -44,7 +44,8 @@ namespace MLEM.Extended.Tiled {
         /// <param name="key">The key by which to get a property</param>
         /// <returns>The color property</returns>
         public static Color GetColor(this TiledMapProperties properties, string key) {
-            return ColorHelper.FromHexString(properties.Get(key));
+            ColorHelper.TryFromHexString(properties.Get(key), out var val);
+            return val;
         }
 
         /// <summary>

MLEM.FNA.sln

@@ -16,11 +16,11 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests.FNA", "Tests\Tests.FN
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MLEM.Extended.FNA", "MLEM.Extended\MLEM.Extended.FNA.csproj", "{A5B22930-DF4B-4A62-93ED-A6549F7B666B}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FNA", "FNA\FNA.csproj", "{35253CE1-C864-4CD3-8249-4D1319748E8F}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FNA", "ThirdParty\FNA\FNA.csproj", "{35253CE1-C864-4CD3-8249-4D1319748E8F}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FontStashSharp.FNA", "FontStashSharp\src\XNA\FontStashSharp.FNA.csproj", "{39249E92-EBF2-4951-A086-AB4951C3CCE1}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FontStashSharp.FNA", "ThirdParty\FontStashSharp\src\XNA\FontStashSharp.FNA.csproj", "{39249E92-EBF2-4951-A086-AB4951C3CCE1}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FNA.Core", "FNA\FNA.Core.csproj", "{458FFA5E-A1C4-4B23-A5D8-259385FEECED}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FNA.Core", "ThirdParty\FNA\FNA.Core.csproj", "{458FFA5E-A1C4-4B23-A5D8-259385FEECED}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

MLEM.Startup/MLEM.Startup.FNA.csproj

@@ -1,10 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
         <RootNamespace>MLEM.Startup</RootNamespace>
         <DefineConstants>$(DefineConstants);FNA</DefineConstants>
     </PropertyGroup>
@@ -22,11 +22,11 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Coroutine" Version="2.1.4" />
+        <PackageReference Include="Coroutine" Version="2.1.5" />
         <ProjectReference Include="..\MLEM.Ui\MLEM.Ui.FNA.csproj" />
         <ProjectReference Include="..\MLEM\MLEM.FNA.csproj" />
 
-        <ProjectReference Include="..\FNA\FNA.csproj">
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.csproj">
             <PrivateAssets>all</PrivateAssets>
         </ProjectReference>
     </ItemGroup>

MLEM.Startup/MLEM.Startup.csproj

@@ -1,10 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
     </PropertyGroup>
 
     <PropertyGroup>

MLEM.Templates/MLEM.Templates.csproj

@@ -1,12 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <IncludeContentInPack>true</IncludeContentInPack>
         <IncludeBuildOutput>false</IncludeBuildOutput>
         <ContentTargetFolders>content</ContentTargetFolders>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
-        <IsTrimmable>true</IsTrimmable>
         <NoWarn>NU5128</NoWarn>
     </PropertyGroup>
 

MLEM.Templates/content/MLEM.Templates.DesktopGL/TemplateNamespace.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <PublishReadyToRun>false</PublishReadyToRun>
         <TieredCompilation>false</TieredCompilation>
         <ApplicationIcon>Icon.ico</ApplicationIcon>
@@ -19,9 +19,4 @@
         <EmbeddedResource Include="Icon.ico" />
         <EmbeddedResource Include="Icon.bmp" />
     </ItemGroup>
-
-    <Target Name="RestoreDotnetTools" BeforeTargets="Restore">
-        <Message Text="Restoring dotnet tools" Importance="High" />
-        <Exec Command="dotnet tool restore" />
-    </Target>
 </Project>

MLEM.Ui/Elements/Button.cs

@@ -87,6 +87,13 @@ namespace MLEM.Ui.Elements {
 
         private bool isDisabled;
 
+        /// <summary>
+        /// Creates a new button with the given settings and no text or tooltip.
+        /// </summary>
+        /// <param name="anchor">The button's anchor</param>
+        /// <param name="size">The button's size</param>
+        public Button(Anchor anchor, Vector2 size) : base(anchor, size) {}
+
         /// <summary>
         /// Creates a new button with the given settings
         /// </summary>
@@ -94,7 +101,7 @@ namespace MLEM.Ui.Elements {
         /// <param name="size">The button's size</param>
         /// <param name="text">The text that should be displayed on the button</param>
         /// <param name="tooltipText">The text that should be displayed in a <see cref="Tooltip"/> when hovering over this button</param>
-        public Button(Anchor anchor, Vector2 size, string text = null, string tooltipText = null) : base(anchor, size) {
+        public Button(Anchor anchor, Vector2 size, string text = null, string tooltipText = null) : this(anchor, size) {
             if (text != null) {
                 this.Text = new Paragraph(Anchor.Center, 1, text, true);
                 this.Text.Padding = this.Text.Padding.OrStyle(new Padding(1), 1);
@@ -104,6 +111,23 @@ namespace MLEM.Ui.Elements {
                 this.Tooltip = this.AddTooltip(tooltipText);
         }
 
+        /// <summary>
+        /// Creates a new button with the given settings
+        /// </summary>
+        /// <param name="anchor">The button's anchor</param>
+        /// <param name="size">The button's size</param>
+        /// <param name="textCallback">The text that should be displayed on the button</param>
+        /// <param name="tooltipTextCallback">The text that should be displayed in a <see cref="Tooltip"/> when hovering over this button</param>
+        public Button(Anchor anchor, Vector2 size, Paragraph.TextCallback textCallback = null, Paragraph.TextCallback tooltipTextCallback = null) : this(anchor, size) {
+            if (textCallback != null) {
+                this.Text = new Paragraph(Anchor.Center, 1, textCallback, true);
+                this.Text.Padding = this.Text.Padding.OrStyle(new Padding(1), 1);
+                this.AddChild(this.Text);
+            }
+            if (tooltipTextCallback != null)
+                this.Tooltip = this.AddTooltip(tooltipTextCallback);
+        }
+
         /// <inheritdoc />
         public override void Draw(GameTime time, SpriteBatch batch, float alpha, SpriteBatchContext context) {
             var tex = this.Texture;

MLEM.Ui/Elements/Dropdown.cs

@@ -12,8 +12,7 @@ namespace MLEM.Ui.Elements {
         /// <summary>
         /// The panel that this dropdown contains. It will be displayed upon pressing the dropdown button.
         /// </summary>
-        public readonly Panel Panel;
+        public Panel Panel { get; private set; }
-
         /// <summary>
         /// This property stores whether the dropdown is currently opened or not
         /// </summary>
@@ -29,6 +28,18 @@ namespace MLEM.Ui.Elements {
         /// </summary>
         public GenericCallback OnOpenedOrClosed;
 
+        /// <summary>
+        /// Creates a new dropdown with the given settings and no text or tooltip.
+        /// </summary>
+        /// <param name="anchor">The dropdown's anchor</param>
+        /// <param name="size">The dropdown button's size</param>
+        /// <param name="panelHeight">The height of the <see cref="Panel"/>. If this is 0, the panel will be set to <see cref="Element.SetHeightBasedOnChildren"/>.</param>
+        /// <param name="scrollPanel">Whether this dropdown's <see cref="Panel"/> should automatically add a scroll bar to scroll towards elements that are beyond the area it covers.</param>
+        /// <param name="autoHidePanelScrollbar">Whether this dropdown's <see cref="Panel"/>'s scroll bar should be hidden automatically if the panel does not contain enough children to allow for scrolling. This only has an effect if <paramref name="scrollPanel"/> is <see langword="true"/>.</param>
+        public Dropdown(Anchor anchor, Vector2 size, float panelHeight = 0, bool scrollPanel = false, bool autoHidePanelScrollbar = true) : base(anchor, size) {
+            this.Initialize(panelHeight, scrollPanel, autoHidePanelScrollbar);
+        }
+
         /// <summary>
         /// Creates a new dropdown with the given settings
         /// </summary>
@@ -36,31 +47,25 @@ namespace MLEM.Ui.Elements {
         /// <param name="size">The dropdown button's size</param>
         /// <param name="text">The text displayed on the dropdown button</param>
         /// <param name="tooltipText">The text displayed as a tooltip when hovering over the dropdown button</param>
-        public Dropdown(Anchor anchor, Vector2 size, string text = null, string tooltipText = null) : base(anchor, size, text, tooltipText) {
+        /// <param name="panelHeight">The height of the <see cref="Panel"/>. If this is 0, the panel will be set to <see cref="Element.SetHeightBasedOnChildren"/>.</param>
-            this.Panel = this.AddChild(new Panel(Anchor.TopCenter, Vector2.Zero, Vector2.Zero, true) {
+        /// <param name="scrollPanel">Whether this dropdown's <see cref="Panel"/> should automatically add a scroll bar to scroll towards elements that are beyond the area it covers.</param>
-                IsHidden = true
+        /// <param name="autoHidePanelScrollbar">Whether this dropdown's <see cref="Panel"/>'s scroll bar should be hidden automatically if the panel does not contain enough children to allow for scrolling. This only has an effect if <paramref name="scrollPanel"/> is <see langword="true"/>.</param>
-            });
+        public Dropdown(Anchor anchor, Vector2 size, string text = null, string tooltipText = null, float panelHeight = 0, bool scrollPanel = false, bool autoHidePanelScrollbar = true) : base(anchor, size, text, tooltipText) {
-            this.OnAreaUpdated += e => {
+            this.Initialize(panelHeight, scrollPanel, autoHidePanelScrollbar);
-                this.Panel.Size = new Vector2(e.Area.Width / e.Scale, 0);
+        }
-                this.Panel.PositionOffset = new Vector2(0, e.Area.Height / e.Scale);
+
-            };
+        /// <summary>
-            this.OnOpenedOrClosed += e => this.Priority = this.IsOpen ? 10000 : 0;
+        /// Creates a new dropdown with the given settings
-            this.OnPressed += e => {
+        /// </summary>
-                this.IsOpen = !this.IsOpen;
+        /// <param name="anchor">The dropdown's anchor</param>
-                // close other dropdowns in the same root when we open
+        /// <param name="size">The dropdown button's size</param>
-                if (this.IsOpen) {
+        /// <param name="textCallback">The text displayed on the dropdown button</param>
-                    this.Root.Element.AndChildren(o => {
+        /// <param name="tooltipTextCallback">The text displayed as a tooltip when hovering over the dropdown button</param>
-                        if (o != this && o is Dropdown d && d.IsOpen)
+        /// <param name="panelHeight">The height of the <see cref="Panel"/>. If this is 0, the panel will be set to <see cref="Element.SetHeightBasedOnChildren"/>.</param>
-                            d.IsOpen = false;
+        /// <param name="scrollPanel">Whether this dropdown's <see cref="Panel"/> should automatically add a scroll bar to scroll towards elements that are beyond the area it covers.</param>
-                    });
+        /// <param name="autoHidePanelScrollbar">Whether this dropdown's <see cref="Panel"/>'s scroll bar should be hidden automatically if the panel does not contain enough children to allow for scrolling. This only has an effect if <paramref name="scrollPanel"/> is <see langword="true"/>.</param>
-                }
+        public Dropdown(Anchor anchor, Vector2 size, Paragraph.TextCallback textCallback = null, Paragraph.TextCallback tooltipTextCallback = null, float panelHeight = 0, bool scrollPanel = false, bool autoHidePanelScrollbar = true) : base(anchor, size, textCallback, tooltipTextCallback) {
-            };
+            this.Initialize(panelHeight, scrollPanel, autoHidePanelScrollbar);
-            this.GetGamepadNextElement = (dir, usualNext) => {
-                // Force navigate down to our first child if we're open
-                if (this.IsOpen && dir == Direction2.Down)
-                    return this.Panel.GetChildren().FirstOrDefault(c => c.CanBeSelected) ?? usualNext;
-                return usualNext;
-            };
         }
 
         /// <summary>
@@ -116,5 +121,32 @@ namespace MLEM.Ui.Elements {
             return paragraph;
         }
 
+        private void Initialize(float panelHeight, bool scrollPanel, bool autoHidePanelScrollbar) {
+            this.Panel = this.AddChild(new Panel(Anchor.TopCenter, Vector2.Zero, panelHeight == 0, scrollPanel, autoHidePanelScrollbar) {
+                IsHidden = true
+            });
+            this.OnAreaUpdated += e => {
+                this.Panel.Size = new Vector2(e.Area.Width / e.Scale, panelHeight);
+                this.Panel.PositionOffset = new Vector2(0, e.Area.Height / e.Scale);
+            };
+            this.OnOpenedOrClosed += e => this.Priority = this.IsOpen ? 10000 : 0;
+            this.OnPressed += e => {
+                this.IsOpen = !this.IsOpen;
+                // close other dropdowns in the same root when we open
+                if (this.IsOpen) {
+                    this.Root.Element.AndChildren(o => {
+                        if (o != this && o is Dropdown d && d.IsOpen)
+                            d.IsOpen = false;
+                    });
+                }
+            };
+            this.GetGamepadNextElement = (dir, usualNext) => {
+                // Force navigate down to our first child if we're open
+                if (this.IsOpen && dir == Direction2.Down)
+                    return this.Panel.GetChildren().FirstOrDefault(c => c.CanBeSelected) ?? usualNext;
+                return usualNext;
+            };
+        }
+
     }
 }

MLEM.Ui/Elements/Element.cs

@@ -1236,12 +1236,13 @@ namespace MLEM.Ui.Elements {
 
         /// <inheritdoc />
         public override string ToString() {
-            var ret = this.GetType().ToString();
+            var ret = this.GetType().Name;
-            // elements will contain their path up to the root (Paragraph@Panel@...@RootName)
+            // elements will contain their path up to the root and their index in each parent
+            // eg Paragraph 2 @ Panel 3 @ ... @ Group RootName
             if (this.Parent != null) {
-                ret += $"@{this.Parent}";
+                ret += $" {this.Parent.Children.IndexOf(this)} @ {this.Parent}";
             } else if (this.Root?.Element == this) {
-                ret += $"@{this.Root.Name}";
+                ret += $" {this.Root.Name}";
             }
             return ret;
         }

MLEM.Ui/Elements/Group.cs

@@ -14,8 +14,18 @@ namespace MLEM.Ui.Elements {
         /// </summary>
         /// <param name="anchor">The group's anchor</param>
         /// <param name="size">The group's size</param>
-        /// <param name="setHeightBasedOnChildren">Whether the group's height should be based on its children's height</param>
+        /// <param name="setHeightBasedOnChildren">Whether the group's height should be based on its children's height, see <see cref="Element.SetHeightBasedOnChildren"/>.</param>
-        public Group(Anchor anchor, Vector2 size, bool setHeightBasedOnChildren = true) : base(anchor, size) {
+        public Group(Anchor anchor, Vector2 size, bool setHeightBasedOnChildren = true) : this(anchor, size, false, setHeightBasedOnChildren) {}
+
+        /// <summary>
+        /// Creates a new group with the given settings
+        /// </summary>
+        /// <param name="anchor">The group's anchor</param>
+        /// <param name="size">The group's size</param>
+        /// <param name="setWidthBasedOnChildren">Whether the group's width should be based on its children's width, see <see cref="Element.SetWidthBasedOnChildren"/>.</param>
+        /// <param name="setHeightBasedOnChildren">Whether the group's height should be based on its children's height, see <see cref="Element.SetHeightBasedOnChildren"/>.</param>
+        public Group(Anchor anchor, Vector2 size, bool setWidthBasedOnChildren, bool setHeightBasedOnChildren) : base(anchor, size) {
+            this.SetWidthBasedOnChildren = setWidthBasedOnChildren;
             this.SetHeightBasedOnChildren = setHeightBasedOnChildren;
             this.CanBeSelected = false;
         }

MLEM.Ui/Elements/Image.cs

@@ -69,11 +69,45 @@ namespace MLEM.Ui.Elements {
         /// Note that increased rotation does not increase this component's size, even if the rotated texture would go out of bounds of this component.
         /// </summary>
         public float ImageRotation;
+        /// <summary>
+        /// Whether this image's width should automatically be calculated based on this image's calculated height in relation to its <see cref="Texture"/>'s aspect ratio.
+        /// Note that, if this is <see langword="true"/>, the <see cref="Element.AutoSizeAddedAbsolute"/> value will still be applied to this image's width.
+        /// </summary>
+        public bool SetWidthBasedOnAspect {
+            get => this.setWidthBasedOnAspect;
+            set {
+                if (this.setWidthBasedOnAspect != value) {
+                    this.setWidthBasedOnAspect = value;
+                    this.SetAreaDirty();
+                }
+            }
+        }
+        /// <summary>
+        /// Whether this image's height should automatically be calculated based on this image's calculated width in relation to its <see cref="Texture"/>'s aspect ratio.
+        /// This behavior is useful if an image should take up a certain width, but the aspect ratio of its texture can vary and the image should not take up more height than is necessary.
+        /// Note that, if this is <see langword="true"/>, the <see cref="Element.AutoSizeAddedAbsolute"/> value will still be applied to this image's height.
+        /// </summary>
+        public bool SetHeightBasedOnAspect {
+            get => this.setHeightBasedOnAspect;
+            set {
+                if (this.setHeightBasedOnAspect != value) {
+                    this.setHeightBasedOnAspect = value;
+                    this.SetAreaDirty();
+                }
+            }
+        }
+        /// <summary>
+        /// The sampler state that this image's <see cref="Texture"/> should be drawn with.
+        /// If this is <see langword="null"/>, the current <see cref="SpriteBatchContext"/>'s <see cref="SpriteBatchContext.SamplerState"/> will be used, which will likely be the same as <see cref="UiSystem.SpriteBatchContext"/>.
+        /// </summary>
+        public SamplerState SamplerState;
 
         /// <inheritdoc />
         public override bool IsHidden => base.IsHidden || this.Texture == null;
 
         private bool scaleToImage;
+        private bool setWidthBasedOnAspect;
+        private bool setHeightBasedOnAspect;
         private TextureRegion explicitlySetTexture;
         private TextureRegion displayedTexture;
 
@@ -86,7 +120,7 @@ namespace MLEM.Ui.Elements {
         /// <param name="scaleToImage">Whether this image's size should be based on the texture's size</param>
         public Image(Anchor anchor, Vector2 size, TextureRegion texture, bool scaleToImage = false) : base(anchor, size) {
             this.Texture = texture;
-            this.scaleToImage = scaleToImage;
+            this.ScaleToImage = scaleToImage;
             this.CanBeSelected = false;
             this.CanBeMoused = false;
         }
@@ -95,14 +129,29 @@ namespace MLEM.Ui.Elements {
         public Image(Anchor anchor, Vector2 size, TextureCallback getTextureCallback, bool scaleToImage = false) : base(anchor, size) {
             this.GetTextureCallback = getTextureCallback;
             this.Texture = getTextureCallback(this);
-            this.scaleToImage = scaleToImage;
+            this.ScaleToImage = scaleToImage;
             this.CanBeSelected = false;
             this.CanBeMoused = false;
         }
 
         /// <inheritdoc />
         protected override Vector2 CalcActualSize(RectangleF parentArea) {
-            return this.Texture != null && this.scaleToImage ? this.Texture.Size.ToVector2() * this.Scale : base.CalcActualSize(parentArea);
+            var ret = base.CalcActualSize(parentArea);
+            if (this.Texture != null) {
+                if (this.ScaleToImage)
+                    ret = this.Texture.Size.ToVector2() * this.Scale;
+                if (this.SetWidthBasedOnAspect)
+                    ret.X = ret.Y * this.Texture.Width / this.Texture.Height + this.ScaledAutoSizeAddedAbsolute.X;
+                if (this.SetHeightBasedOnAspect)
+                    ret.Y = ret.X * this.Texture.Height / this.Texture.Width + this.ScaledAutoSizeAddedAbsolute.Y;
+            } else {
+                // if we don't have a texture and we auto-set width or height, calculate as if we had a texture with a size of 0
+                if (this.SetWidthBasedOnAspect)
+                    ret.X = this.ScaledAutoSizeAddedAbsolute.X;
+                if (this.SetHeightBasedOnAspect)
+                    ret.Y = this.ScaledAutoSizeAddedAbsolute.Y;
+            }
+            return ret;
         }
 
         /// <inheritdoc />
@@ -115,6 +164,14 @@ namespace MLEM.Ui.Elements {
         public override void Draw(GameTime time, SpriteBatch batch, float alpha, SpriteBatchContext context) {
             if (this.Texture == null)
                 return;
+
+            if (this.SamplerState != null) {
+                batch.End();
+                var localContext = context;
+                localContext.SamplerState = this.SamplerState;
+                batch.Begin(localContext);
+            }
+
             var center = new Vector2(this.Texture.Width / 2F, this.Texture.Height / 2F);
             var color = this.Color.OrDefault(Microsoft.Xna.Framework.Color.White) * alpha;
             if (this.MaintainImageAspect) {
@@ -125,6 +182,12 @@ namespace MLEM.Ui.Elements {
                 var scale = new Vector2(1F / this.Texture.Width, 1F / this.Texture.Height) * this.DisplayArea.Size;
                 batch.Draw(this.Texture, this.DisplayArea.Location + center * scale, color, this.ImageRotation, center, scale * this.ImageScale, this.ImageEffects, 0);
             }
+
+            if (this.SamplerState != null) {
+                batch.End();
+                batch.Begin(context);
+            }
+
             base.Draw(time, batch, alpha, context);
         }
 
@@ -134,7 +197,7 @@ namespace MLEM.Ui.Elements {
                 return;
             var nullChanged = this.displayedTexture == null != (newTexture == null);
             this.displayedTexture = newTexture;
-            if (nullChanged || this.scaleToImage)
+            if (nullChanged || this.ScaleToImage || this.SetWidthBasedOnAspect || this.SetHeightBasedOnAspect)
                 this.SetAreaDirty();
         }
 

MLEM.Ui/Elements/Panel.cs

@@ -55,12 +55,16 @@ namespace MLEM.Ui.Elements {
         }
 
         private readonly List<Element> relevantChildren = new List<Element>();
+        private readonly HashSet<Element> scrolledChildren = new HashSet<Element>();
+        private readonly float[] scrollBarMaxHistory;
         private readonly bool scrollOverflow;
 
         private RenderTarget2D renderTarget;
         private bool relevantChildrenDirty;
         private float scrollBarChildOffset;
         private StyleProp<float> scrollBarOffset;
+        private float lastScrollOffset;
+        private bool childrenDirtyForScroll;
 
         /// <summary>
         /// Creates a new panel with the given settings.
@@ -70,7 +74,7 @@ namespace MLEM.Ui.Elements {
         /// <param name="positionOffset">The panel's offset from its anchor point</param>
         /// <param name="setHeightBasedOnChildren">Whether the panel should automatically calculate its height based on its children's size</param>
         /// <param name="scrollOverflow">Whether this panel should automatically add a scroll bar to scroll towards elements that are beyond the area this panel covers</param>
-        /// <param name="autoHideScrollbar">Whether the scroll bar should be hidden automatically if the panel does not contain enough children to allow for scrolling</param>
+        /// <param name="autoHideScrollbar">Whether the scroll bar should be hidden automatically if the panel does not contain enough children to allow for scrolling. This only has an effect if <paramref name="scrollOverflow"/> is <see langword="true"/>.</param>
         public Panel(Anchor anchor, Vector2 size, Vector2 positionOffset, bool setHeightBasedOnChildren = false, bool scrollOverflow = false, bool autoHideScrollbar = true) : base(anchor, size) {
             this.PositionOffset = positionOffset;
             this.SetHeightBasedOnChildren = setHeightBasedOnChildren;
@@ -94,9 +98,23 @@ namespace MLEM.Ui.Elements {
                     this.ScrollToElement(e);
                 };
                 this.AddChild(this.ScrollBar);
+
+                this.scrollBarMaxHistory = new float[3];
+                for (var i = 0; i < this.scrollBarMaxHistory.Length; i++)
+                    this.scrollBarMaxHistory[i] = -1;
             }
         }
 
+        /// <summary>
+        /// Creates a new panel with the given settings.
+        /// </summary>
+        /// <param name="anchor">The panel's anchor</param>
+        /// <param name="size">The panel's default size</param>
+        /// <param name="setHeightBasedOnChildren">Whether the panel should automatically calculate its height based on its children's size</param>
+        /// <param name="scrollOverflow">Whether this panel should automatically add a scroll bar to scroll towards elements that are beyond the area this panel covers</param>
+        /// <param name="autoHideScrollbar">Whether the scroll bar should be hidden automatically if the panel does not contain enough children to allow for scrolling. This only has an effect if <paramref name="scrollOverflow"/> is <see langword="true"/>.</param>
+        public Panel(Anchor anchor, Vector2 size, bool setHeightBasedOnChildren = false, bool scrollOverflow = false, bool autoHideScrollbar = true) : this(anchor, size, Vector2.Zero, setHeightBasedOnChildren, scrollOverflow, autoHideScrollbar) {}
+
         /// <inheritdoc />
         public override void ForceUpdateArea() {
             if (this.scrollOverflow) {
@@ -106,11 +124,15 @@ namespace MLEM.Ui.Elements {
                 foreach (var child in this.Children) {
                     if (child != this.ScrollBar && !child.Anchor.IsAuto())
                         throw new NotSupportedException($"A panel that handles overflow can't contain non-automatic anchors ({child})");
-                    if (child is Panel panel && panel.scrollOverflow)
-                        throw new NotSupportedException($"A panel that scrolls overflow cannot contain another panel that scrolls overflow ({child})");
                 }
             }
+
             base.ForceUpdateArea();
+            if (this.scrollOverflow) {
+                for (var i = 0; i < this.scrollBarMaxHistory.Length; i++)
+                    this.scrollBarMaxHistory[i] = -1;
+            }
+
             this.SetScrollBarStyle();
         }
 
@@ -136,8 +158,16 @@ namespace MLEM.Ui.Elements {
 
             // when removing children, our scroll bar might have to be hidden
             // if we don't do this before adding children again, they might incorrectly assume that the scroll bar will still be visible and adjust their size accordingly
-            if (this.System != null)
+            this.childrenDirtyForScroll = true;
+        }
+
+        /// <inheritdoc />
+        public override T AddChild<T>(T element, int index = -1) {
+            // if children were recently removed, make sure to update the scroll bar before adding new ones so that they can't incorrectly assume the scroll bar will be visible
+            if (this.childrenDirtyForScroll && this.System != null)
                 this.ScrollSetup();
+
+            return base.AddChild(element, index);
         }
 
         /// <inheritdoc />
@@ -202,10 +232,10 @@ namespace MLEM.Ui.Elements {
         /// </summary>
         /// <param name="elementY">The y coordinate to scroll to, which should have this element's <see cref="Element.Scale"/> applied.</param>
         public void ScrollToElement(float elementY) {
-            var firstChild = this.Children.FirstOrDefault(c => c != this.ScrollBar);
+            var highestValidChild = this.Children.FirstOrDefault(c => c != this.ScrollBar && !c.IsHidden);
-            if (firstChild == null)
+            if (highestValidChild == null)
                 return;
-            this.ScrollBar.CurrentValue = (elementY - this.Area.Height / 2 - firstChild.Area.Top) / this.Scale + this.ChildPadding.Value.Height / 2;
+            this.ScrollBar.CurrentValue = (elementY - this.Area.Height / 2 - highestValidChild.Area.Top) / this.Scale + this.ChildPadding.Value.Height / 2;
         }
 
         /// <inheritdoc />
@@ -234,13 +264,12 @@ namespace MLEM.Ui.Elements {
         /// <inheritdoc />
         protected override void OnChildAreaDirty(Element child, bool grandchild) {
             base.OnChildAreaDirty(child, grandchild);
-            // we only need to scroll when a grandchild changes, since all of our children are forced
+            if (grandchild && !this.AreaDirty) {
-            // to be auto-anchored and so will automatically propagate their changes up to us
+                // we only need to scroll when a grandchild changes, since all of our children are forced
-            if (grandchild) {
+                // to be auto-anchored and so will automatically propagate their changes up to us
                 this.ScrollChildren();
                 // we also need to re-setup here in case the child is involved in a special GetTotalCoveredArea
-                if (!this.AreaDirty)
+                this.ScrollSetup();
-                    this.ScrollSetup();
             }
         }
 
@@ -257,32 +286,41 @@ namespace MLEM.Ui.Elements {
         /// Prepares the panel for auto-scrolling, creating the render target and setting up the scroll bar's maximum value.
         /// </summary>
         protected virtual void ScrollSetup() {
+            this.childrenDirtyForScroll = false;
+
             if (!this.scrollOverflow || this.IsHidden)
                 return;
 
             float childrenHeight;
             if (this.Children.Count > 1) {
-                var firstChild = this.Children.FirstOrDefault(c => c != this.ScrollBar);
+                var highestValidChild = this.Children.FirstOrDefault(c => c != this.ScrollBar && !c.IsHidden);
                 var lowestChild = this.GetLowestChild(c => c != this.ScrollBar && !c.IsHidden, true);
-                childrenHeight = lowestChild.GetTotalCoveredArea(false).Bottom - firstChild.Area.Top;
+                childrenHeight = lowestChild.GetTotalCoveredArea(false).Bottom - highestValidChild.Area.Top;
             } else {
                 // if we only have one child (the scroll bar), then the children take up no visual height
                 childrenHeight = 0;
             }
 
             // the max value of the scroll bar is the amount of non-scaled pixels taken up by overflowing components
-            var scrollBarMax = (childrenHeight - this.ChildPaddedArea.Height) / this.Scale;
+            var scrollBarMax = Math.Max(0, (childrenHeight - this.ChildPaddedArea.Height) / this.Scale);
             if (!this.ScrollBar.MaxValue.Equals(scrollBarMax, Element.Epsilon)) {
-                this.ScrollBar.MaxValue = scrollBarMax;
+                // avoid a show/hide oscillation that occurs while updating our area with children that can lose height when the scroll bar is shown (like long paragraphs)
-                this.relevantChildrenDirty = true;
+                if (!this.scrollBarMaxHistory[0].Equals(this.scrollBarMaxHistory[2], Element.Epsilon) || !this.scrollBarMaxHistory[1].Equals(scrollBarMax, Element.Epsilon)) {
+                    this.scrollBarMaxHistory[0] = this.scrollBarMaxHistory[1];
+                    this.scrollBarMaxHistory[1] = this.scrollBarMaxHistory[2];
+                    this.scrollBarMaxHistory[2] = scrollBarMax;
+
+                    this.ScrollBar.MaxValue = scrollBarMax;
+                    this.relevantChildrenDirty = true;
+                }
             }
 
             // update child padding based on whether the scroll bar is visible
             var childOffset = this.ScrollBar.IsHidden ? 0 : this.ScrollerSize.Value.X + this.ScrollBarOffset;
-            if (!this.scrollBarChildOffset.Equals(childOffset, Element.Epsilon)) {
+            var childOffsetDelta = childOffset - this.scrollBarChildOffset;
-                this.ChildPadding += new Padding(0, -this.scrollBarChildOffset + childOffset, 0, 0);
+            if (!childOffsetDelta.Equals(0, Element.Epsilon)) {
                 this.scrollBarChildOffset = childOffset;
-                this.SetAreaDirty();
+                this.ChildPadding += new Padding(0, childOffsetDelta, 0, 0);
             }
 
             // the scroller height has the same relation to the scroll bar height as the visible area has to the total height of the panel's content
@@ -290,15 +328,15 @@ namespace MLEM.Ui.Elements {
             this.ScrollBar.ScrollerSize = new Vector2(this.ScrollerSize.Value.X, Math.Max(this.ScrollerSize.Value.Y, scrollerHeight));
 
             // update the render target
-            var targetArea = (Rectangle) this.GetRenderTargetArea();
+            var area = (Rectangle) this.GetRenderTargetArea();
-            if (targetArea.Width <= 0 || targetArea.Height <= 0) {
+            if (area.Width <= 0 || area.Height <= 0) {
                 this.renderTarget?.Dispose();
                 this.renderTarget = null;
                 return;
             }
-            if (this.renderTarget == null || targetArea.Width != this.renderTarget.Width || targetArea.Height != this.renderTarget.Height) {
+            if (this.renderTarget == null || area.Width != this.renderTarget.Width || area.Height != this.renderTarget.Height) {
                 this.renderTarget?.Dispose();
-                this.renderTarget = targetArea.IsEmpty ? null : new RenderTarget2D(this.System.Game.GraphicsDevice, targetArea.Width, targetArea.Height);
+                this.renderTarget = new RenderTarget2D(this.System.Game.GraphicsDevice, area.Width, area.Height, false, SurfaceFormat.Color, DepthFormat.None, 0, RenderTargetUsage.PreserveContents);
                 this.relevantChildrenDirty = true;
             }
         }
@@ -330,7 +368,7 @@ namespace MLEM.Ui.Elements {
         }
 
         private RectangleF GetRenderTargetArea() {
-            var area = this.ChildPaddedArea;
+            var area = this.ChildPaddedArea.OffsetCopy(this.ScaledScrollOffset);
             area.X = this.DisplayArea.X;
             area.Width = this.DisplayArea.Width;
             return area;
@@ -339,9 +377,21 @@ namespace MLEM.Ui.Elements {
         private void ScrollChildren() {
             if (!this.scrollOverflow)
                 return;
+
+            var currentChildren = new HashSet<Element>();
+            // scroll all our children (and cache newly added ones)
             // we ignore false grandchildren so that the children of the scroll bar stay in place
-            foreach (var child in this.GetChildren(c => c != this.ScrollBar, true, true))
+            foreach (var child in this.GetChildren(c => c != this.ScrollBar, true, true)) {
-                child.ScrollOffset.Y = -this.ScrollBar.CurrentValue;
+                // if a child was newly added later, the last scroll offset was never applied
+                if (this.scrolledChildren.Add(child))
+                    child.ScrollOffset.Y -= this.lastScrollOffset;
+                child.ScrollOffset.Y += (this.lastScrollOffset - this.ScrollBar.CurrentValue);
+                currentChildren.Add(child);
+            }
+            // remove cached scrolled children that aren't our children anymore
+            this.scrolledChildren.IntersectWith(currentChildren);
+
+            this.lastScrollOffset = this.ScrollBar.CurrentValue;
             this.relevantChildrenDirty = true;
         }
 

MLEM.Ui/Elements/Paragraph.cs

@@ -166,6 +166,30 @@ namespace MLEM.Ui.Elements {
         private float textScaleMultiplier = 1;
         private bool autoAdjustWidth;
 
+        /// <summary>
+        /// Creates a new paragraph with the given settings.
+        /// </summary>
+        /// <param name="anchor">The paragraph's anchor</param>
+        /// <param name="width">The paragraph's width. Note that its height is automatically calculated.</param>
+        /// <param name="textCallback">The paragraph's text</param>
+        /// <param name="alignment">The paragraph's text alignment.</param>
+        /// <param name="autoAdjustWidth">Whether the paragraph's width should automatically be calculated based on the text within it.</param>
+        public Paragraph(Anchor anchor, float width, TextCallback textCallback, TextAlignment alignment, bool autoAdjustWidth = false) : this(anchor, width, textCallback, autoAdjustWidth) {
+            this.Alignment = alignment;
+        }
+
+        /// <summary>
+        /// Creates a new paragraph with the given settings.
+        /// </summary>
+        /// <param name="anchor">The paragraph's anchor</param>
+        /// <param name="width">The paragraph's width. Note that its height is automatically calculated.</param>
+        /// <param name="text">The paragraph's text</param>
+        /// <param name="alignment">The paragraph's text alignment.</param>
+        /// <param name="autoAdjustWidth">Whether the paragraph's width should automatically be calculated based on the text within it.</param>
+        public Paragraph(Anchor anchor, float width, string text, TextAlignment alignment, bool autoAdjustWidth = false) : this(anchor, width, text, autoAdjustWidth) {
+            this.Alignment = alignment;
+        }
+
         /// <summary>
         /// Creates a new paragraph with the given settings.
         /// </summary>
@@ -177,7 +201,13 @@ namespace MLEM.Ui.Elements {
             this.GetTextCallback = textCallback;
         }
 
-        /// <inheritdoc cref="Paragraph(Anchor,float,TextCallback,bool)"/>
+        /// <summary>
+        /// Creates a new paragraph with the given settings.
+        /// </summary>
+        /// <param name="anchor">The paragraph's anchor</param>
+        /// <param name="width">The paragraph's width. Note that its height is automatically calculated.</param>
+        /// <param name="text">The paragraph's text</param>
+        /// <param name="autoAdjustWidth">Whether the paragraph's width should automatically be calculated based on the text within it.</param>
         public Paragraph(Anchor anchor, float width, string text, bool autoAdjustWidth = false) : base(anchor, new Vector2(width, 0)) {
             this.Text = text;
             this.AutoAdjustWidth = autoAdjustWidth;
@@ -232,7 +262,7 @@ namespace MLEM.Ui.Elements {
         private void SetTextDirty() {
             this.tokenizedText = null;
             // only set our area dirty if our size changed as a result of this action
-            if (!this.AreaDirty && !this.CalcActualSize(this.ParentArea).Equals(this.DisplayArea.Size, Element.Epsilon))
+            if (!this.AreaDirty && (this.System == null || !this.CalcActualSize(this.ParentArea).Equals(this.DisplayArea.Size, Element.Epsilon)))
                 this.SetAreaDirty();
         }
 

MLEM.Ui/Elements/ScrollBar.cs

@@ -158,7 +158,7 @@ namespace MLEM.Ui.Elements {
             if (this.isMouseScrolling)
                 this.ScrollToPos(this.TransformInverseAll(this.Input.ViewportMousePosition.ToVector2()));
             if (!this.Horizontal) {
-                if (moused != null && (moused == this.Parent || moused.GetParentTree().Contains(this.Parent))) {
+                if (this.IsMousedForScrolling(moused)) {
                     var scroll = this.Input.LastScrollWheel - this.Input.ScrollWheel;
                     if (scroll != 0)
                         this.CurrentValue += this.StepPerScroll * Math.Sign(scroll);
@@ -244,6 +244,23 @@ namespace MLEM.Ui.Elements {
             this.SmoothScrollFactor = this.SmoothScrollFactor.OrStyle(style.ScrollBarSmoothScrollFactor);
         }
 
+        private bool IsMousedForScrolling(Element moused) {
+            if (moused == null || (moused != this.Parent && !moused.GetParentTree().Contains(this.Parent)))
+                return false;
+            // if we're moused, check if there are any scroll bars deeper than us that should take precedence
+            var foundMe = false;
+            foreach (var child in this.Parent.GetChildren(regardGrandchildren: true)) {
+                if (foundMe) {
+                    if (child is ScrollBar b && !b.Horizontal && b.IsMousedForScrolling(moused))
+                        return false;
+                } else if (child == this) {
+                    // once we found ourselves, all subsequent children are deeper/older!
+                    foundMe = true;
+                }
+            }
+            return true;
+        }
+
         /// <summary>
         /// A delegate method used for <see cref="ScrollBar.OnValueChanged"/>
         /// </summary>

MLEM.Ui/Elements/TextField.cs

@@ -204,8 +204,6 @@ namespace MLEM.Ui.Elements {
                 if (this.IsSelectedActive && !this.IsHidden && !this.textInput.OnTextInput(key, character) && key == Keys.Enter && !this.Multiline)
                     this.EnterReceiver?.Controls?.PressElement(this.EnterReceiver);
             };
-            this.OnDeselected += e => this.CaretPos = 0;
-            this.OnSelected += e => this.CaretPos = this.textInput.Length;
         }
 
         /// <inheritdoc />

MLEM.Ui/MLEM.Ui.FNA.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
         <RootNamespace>MLEM.Ui</RootNamespace>
         <DefineConstants>$(DefineConstants);FNA</DefineConstants>
     </PropertyGroup>
@@ -24,7 +24,7 @@
         <PackageReference Include="TextCopy" Version="6.2.0" Condition="'$(TargetFramework)'!='net452'" />
         <ProjectReference Include="..\MLEM\MLEM.FNA.csproj" />
 
-        <ProjectReference Include="..\FNA\FNA.csproj">
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.csproj">
             <PrivateAssets>all</PrivateAssets>
         </ProjectReference>
     </ItemGroup>

MLEM.Ui/MLEM.Ui.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
     </PropertyGroup>
 
     <PropertyGroup>

MLEM.Ui/Parsers/UiParser.cs

@@ -139,21 +139,32 @@ namespace MLEM.Ui.Parsers {
         /// This method invokes an asynchronouns action, meaning the <see cref="Image"/>'s <see cref="Image.Texture"/> will likely not have loaded in when this method returns.
         /// </summary>
         /// <param name="path">The absolute, relative or web path to the image.</param>
+        /// <param name="onImageFetched">An action that is invoked with the loaded image once it is fetched. Note that this action will be invoked asynchronously.</param>
         /// <returns>The loaded image.</returns>
         /// <exception cref="NullReferenceException">Thrown if <see cref="GraphicsDevice"/> is null, or if there is an <see cref="Exception"/> loading the image and <see cref="ImageExceptionHandler"/> is unset.</exception>
-        protected Image ParseImage(string path) {
+        protected Image ParseImage(string path, Action<TextureRegion> onImageFetched = null) {
             if (this.GraphicsDevice == null)
                 throw new NullReferenceException("A UI parser requires a GraphicsDevice for parsing images");
 
+            var imageLock = new object();
             TextureRegion image = null;
-            return new Image(Anchor.AutoLeft, new Vector2(1, -1), _ => image) {
+            return new Image(Anchor.AutoLeft, Vector2.One, _ => {
+                lock (imageLock)
+                    return image;
+            }) {
+                SetHeightBasedOnAspect = true,
                 OnAddedToUi = e => {
-                    if (image == null)
+                    bool imageNull;
+                    lock (imageLock)
+                        imageNull = image == null;
+                    if (imageNull)
                         LoadImageAsync();
                 },
                 OnRemovedFromUi = e => {
-                    image?.Texture.Dispose();
+                    lock (imageLock) {
-                    image = null;
+                        image?.Texture.Dispose();
+                        image = null;
+                    }
                 }
             };
 
@@ -178,7 +189,12 @@ namespace MLEM.Ui.Parsers {
                         using (var stream = Path.IsPathRooted(path) ? File.OpenRead(path) : TitleContainer.OpenStream(path))
                             tex = Texture2D.FromStream(this.GraphicsDevice, stream);
                     }
-                    image = new TextureRegion(tex);
+                    lock (imageLock) {
+                        if (image == null) {
+                            image = new TextureRegion(tex);
+                            onImageFetched?.Invoke(image);
+                        }
+                    }
                 } catch (Exception e) {
                     if (this.ImageExceptionHandler != null) {
                         this.ImageExceptionHandler.Invoke(path, e);

MLEM.Ui/UiControls.cs

@@ -103,7 +103,7 @@ namespace MLEM.Ui {
         /// </summary>
         public bool HandleGamepad = true;
         /// <summary>
-        /// If this value is true, the ui controls are in automatic navigation mode.
+        /// If this value is true, the ui controls are in automatic navigation mode. The state of automatic navigation is usually based on the current <see cref="NavType"/>.
         /// This means that the <see cref="UiStyle.SelectionIndicator"/> will be drawn around the <see cref="SelectedElement"/>.
         /// </summary>
         public bool IsAutoNavMode {
@@ -115,12 +115,29 @@ namespace MLEM.Ui {
                 }
             }
         }
+        /// <summary>
+        /// The current <see cref="NavigationType"/> of these ui controls, which represents the last type of interaction that was used to interact with the underlying <see cref="UiSystem"/>.
+        /// </summary>
+        public NavigationType NavType {
+            get => this.navType;
+            set {
+                if (this.navType != value) {
+                    var last = this.navType;
+                    this.navType = value;
+                    this.NavTypeChanged?.Invoke(last, value);
+                }
+            }
+        }
 
         /// <summary>
         /// An event that is raised when <see cref="IsAutoNavMode"/> is changed.
         /// This can be used for custom actions like hiding the mouse cursor when automatic navigation is enabled.
         /// </summary>
         public event Action<bool> AutoNavModeChanged;
+        /// <summary>
+        /// An event that is raised when <see cref="NavType"/> is changed. It receives the previous navigation type, as well as the newly set navigation type.
+        /// </summary>
+        public event Action<NavigationType, NavigationType> NavTypeChanged;
 
         /// <summary>
         /// This value ist true if the <see cref="InputHandler"/> was created by this ui controls instance, or if it was passed in.
@@ -134,6 +151,7 @@ namespace MLEM.Ui {
 
         private readonly Dictionary<string, Element> selectedElements = new Dictionary<string, Element>();
         private bool isAutoNavMode;
+        private NavigationType navType;
 
         /// <summary>
         /// Creates a new instance of the ui controls.
@@ -167,6 +185,7 @@ namespace MLEM.Ui {
 
                 if (this.Input.IsPressedAvailable(MouseButton.Left)) {
                     this.IsAutoNavMode = false;
+                    this.NavType = NavigationType.Mouse;
                     var selectedNow = mousedNow != null && mousedNow.CanBeSelected ? mousedNow : null;
                     this.SelectElement(this.ActiveRoot, selectedNow);
                     if (mousedNow != null && mousedNow.CanBePressed) {
@@ -175,6 +194,7 @@ namespace MLEM.Ui {
                     }
                 } else if (this.Input.IsPressedAvailable(MouseButton.Right)) {
                     this.IsAutoNavMode = false;
+                    this.NavType = NavigationType.Mouse;
                     if (mousedNow != null && mousedNow.CanBePressed) {
                         this.PressElement(mousedNow, true);
                         this.Input.TryConsumePressed(MouseButton.Right);
@@ -187,12 +207,14 @@ namespace MLEM.Ui {
             if (this.HandleKeyboard) {
                 if (this.KeyboardButtons.IsPressedAvailable(this.Input, this.GamepadIndex)) {
                     if (this.SelectedElement?.Root != null && this.SelectedElement.CanBePressed) {
+                        this.NavType = NavigationType.Keyboard;
                         // primary or secondary action on element using space or enter
                         this.PressElement(this.SelectedElement, this.Input.IsModifierKeyDown(ModifierKey.Shift));
                         this.KeyboardButtons.TryConsumePressed(this.Input, this.GamepadIndex);
                     }
                 } else if (this.Input.IsPressedAvailable(Keys.Tab)) {
                     this.IsAutoNavMode = true;
+                    this.NavType = NavigationType.Keyboard;
                     // tab or shift-tab to next or previous element
                     var backward = this.Input.IsModifierKeyDown(ModifierKey.Shift);
                     var next = this.GetTabNextElement(backward);
@@ -208,12 +230,14 @@ namespace MLEM.Ui {
             if (this.HandleTouch) {
                 if (this.Input.GetViewportGesture(GestureType.Tap, out var tap)) {
                     this.IsAutoNavMode = false;
+                    this.NavType = NavigationType.Touch;
                     var tapped = this.GetElementUnderPos(tap.Position);
                     this.SelectElement(this.ActiveRoot, tapped);
                     if (tapped != null && tapped.CanBePressed)
                         this.PressElement(tapped);
                 } else if (this.Input.GetViewportGesture(GestureType.Hold, out var hold)) {
                     this.IsAutoNavMode = false;
+                    this.NavType = NavigationType.Touch;
                     var held = this.GetElementUnderPos(hold.Position);
                     this.SelectElement(this.ActiveRoot, held);
                     if (held != null && held.CanBePressed)
@@ -224,6 +248,7 @@ namespace MLEM.Ui {
                     foreach (var location in this.Input.ViewportTouchState) {
                         var element = this.GetElementUnderPos(location.Position);
                         if (location.State == TouchLocationState.Pressed) {
+                            this.NavType = NavigationType.Touch;
                             // start touching an element if we just touched down on it
                             this.SetTouchedElement(element);
                         } else if (element != this.TouchedElement) {
@@ -239,11 +264,13 @@ namespace MLEM.Ui {
             if (this.HandleGamepad) {
                 if (this.GamepadButtons.IsPressedAvailable(this.Input, this.GamepadIndex)) {
                     if (this.SelectedElement?.Root != null && this.SelectedElement.CanBePressed) {
+                        this.NavType = NavigationType.Gamepad;
                         this.PressElement(this.SelectedElement);
                         this.GamepadButtons.TryConsumePressed(this.Input, this.GamepadIndex);
                     }
                 } else if (this.SecondaryGamepadButtons.IsPressedAvailable(this.Input, this.GamepadIndex)) {
                     if (this.SelectedElement?.Root != null && this.SelectedElement.CanBePressed) {
+                        this.NavType = NavigationType.Gamepad;
                         this.PressElement(this.SelectedElement, true);
                         this.SecondaryGamepadButtons.TryConsumePressed(this.Input, this.GamepadIndex);
                     }
@@ -286,8 +313,9 @@ namespace MLEM.Ui {
         /// </summary>
         /// <param name="root">The root element of the <see cref="Element"/></param>
         /// <param name="element">The element to select, or null to deselect the selected element.</param>
-        /// <param name="autoNav">Whether automatic navigation should be forced on</param>
+        /// <param name="autoNav">Whether automatic navigation should be forced on. If this is <see langword="null"/>, the automatic navigation state will stay the same.</param>
-        public void SelectElement(RootElement root, Element element, bool? autoNav = null) {
+        /// <param name="navType">An optional <see cref="NavigationType"/> to set. If this is <see langword="null"/>, the navigation type will stay the same.</param>
+        public void SelectElement(RootElement root, Element element, bool? autoNav = null, NavigationType? navType = null) {
             if (root == null)
                 return;
             if (element != null && !element.CanBeSelected)
@@ -308,6 +336,8 @@ namespace MLEM.Ui {
 
             if (autoNav != null)
                 this.IsAutoNavMode = autoNav.Value;
+            if (navType != null)
+                this.NavType = navType.Value;
         }
 
         /// <summary>
@@ -444,6 +474,7 @@ namespace MLEM.Ui {
 
         private bool HandleGamepadNextElement(Direction2 dir) {
             this.IsAutoNavMode = true;
+            this.NavType = NavigationType.Gamepad;
             var next = this.GetGamepadNextElement(dir);
             if (this.SelectedElement != null)
                 next = this.SelectedElement.GetGamepadNextElement(dir, next);
@@ -454,5 +485,34 @@ namespace MLEM.Ui {
             return false;
         }
 
+        /// <summary>
+        /// An enumeration type that represents the possible types of navigation that a <see cref="UiControls"/> instance supports.
+        /// This is used by <see cref="UiControls.NavType"/>, which stores the most recently used navigation type for a <see cref="UiSystem"/>.
+        /// </summary>
+        public enum NavigationType {
+
+            /// <summary>
+            /// An unknown navigation type, which usually means there has not been any ui navigation of any type yet.
+            /// </summary>
+            Unknown = 0,
+            /// <summary>
+            /// Mouse cursor and mouse button navigation.
+            /// </summary>
+            Mouse,
+            /// <summary>
+            /// Keyboard navigation.
+            /// </summary>
+            Keyboard,
+            /// <summary>
+            /// Touch and gesture navigation.
+            /// </summary>
+            Touch,
+            /// <summary>
+            /// Gamepad-style navigation, which may also include arrow key-based navigation based on current <see cref="UiControls"/> settings.
+            /// </summary>
+            Gamepad
+
+        }
+
     }
 }

MLEM.Ui/UiSystem.cs

@@ -608,9 +608,10 @@ namespace MLEM.Ui {
         /// Optionally, automatic navigation can be forced on, causing the <see cref="UiStyle.SelectionIndicator"/> to be drawn around the element.
         /// </summary>
         /// <param name="element">The element to select, or null to deselect the selected element.</param>
-        /// <param name="autoNav">Whether automatic navigation should be forced on</param>
+        /// <param name="autoNav">Whether automatic navigation should be forced on. If this is <see langword="null"/>, the automatic navigation state will stay the same.</param>
-        public void SelectElement(Element element, bool? autoNav = null) {
+        /// <param name="navType">An optional <see cref="UiControls.NavigationType"/> to set. If this is <see langword="null"/>, the navigation type will stay the same.</param>
-            this.System.Controls.SelectElement(this, element, autoNav);
+        public void SelectElement(Element element, bool? autoNav = null, UiControls.NavigationType? navType = null) {
+            this.System.Controls.SelectElement(this, element, autoNav, navType);
         }
 
         /// <summary>

MLEM/Extensions/ColorExtensions.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Globalization;
 using Microsoft.Xna.Framework;
 
@@ -36,6 +37,27 @@ namespace MLEM.Extensions {
             return new Color(color.ToVector4() * other.ToVector4());
         }
 
+        /// <summary>
+        /// Returns the hexadecimal representation of this color as a string in the format <c>#AARRGGBB</c>, or optionally <c>AARRGGBB</c>, without the pound symbol.
+        /// </summary>
+        /// <param name="color">The color to convert.</param>
+        /// <param name="hash">Whether a # should prepend the string.</param>
+        /// <returns>The resulting hex string.</returns>
+        public static string ToHexStringRgba(this Color color, bool hash = true) {
+            return $"{(hash ? "#" : string.Empty)}{color.A:X2}{color.R:X2}{color.G:X2}{color.B:X2}";
+        }
+
+        /// <summary>
+        /// Returns the hexadecimal representation of this color as a string in the format <c>#RRGGBB</c>, or optionally <c>RRGGBB</c>, without the pound symbol.
+        /// The alpha channel is ignored.
+        /// </summary>
+        /// <param name="color">The color to convert.</param>
+        /// <param name="hash">Whether a # should prepend the string.</param>
+        /// <returns>The resulting hex string.</returns>
+        public static string ToHexStringRgb(this Color color, bool hash = true) {
+            return $"{(hash ? "#" : string.Empty)}{color.R:X2}{color.G:X2}{color.B:X2}";
+        }
+
     }
 
     /// <summary>
@@ -64,16 +86,34 @@ namespace MLEM.Extensions {
         }
 
         /// <summary>
-        /// Parses a hexadecimal string into a color.
+        /// Parses a hexadecimal string into a color and throws a <see cref="FormatException"/> if parsing fails.
-        /// The string can either be formatted as RRGGBB or AARRGGBB and can optionally start with a <c>#</c>.
+        /// The string can either be formatted as <c>RRGGBB</c> or <c>AARRGGBB</c> and can optionally start with a <c>#</c>.
         /// </summary>
         /// <param name="value">The string to parse.</param>
         /// <returns>The resulting color.</returns>
+        /// <exception cref="FormatException">Thrown if parsing fails.</exception>
         public static Color FromHexString(string value) {
+            if (!ColorHelper.TryFromHexString(value, out var val))
+                throw new FormatException($"Cannot parse hex string {value}");
+            return val;
+        }
+
+        /// <summary>
+        /// Tries to parse a hexadecimal string into a color and returns whether a color was successfully parsed.
+        /// The string can either be formatted as <c>RRGGBB</c> or <c>AARRGGBB</c> and can optionally start with a <c>#</c>.
+        /// </summary>
+        /// <param name="value">The string to parse.</param>
+        /// <param name="color">The resulting color.</param>
+        /// <returns>Whether parsing was successful.</returns>
+        public static bool TryFromHexString(string value, out Color color) {
             if (value.StartsWith("#"))
                 value = value.Substring(1);
-            var val = int.Parse(value, NumberStyles.HexNumber);
+            if (int.TryParse(value, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var val)) {
-            return value.Length > 6 ? ColorHelper.FromHexRgba(val) : ColorHelper.FromHexRgb(val);
+                color = value.Length > 6 ? ColorHelper.FromHexRgba(val) : ColorHelper.FromHexRgb(val);
+                return true;
+            }
+            color = default;
+            return false;
         }
 
     }

MLEM/Extensions/GraphicsExtensions.cs

@@ -69,11 +69,22 @@ namespace MLEM.Extensions {
         /// </summary>
         /// <param name="device">The graphics device</param>
         /// <param name="target">The render target to apply</param>
-        /// <returns></returns>
+        /// <returns>The render target context, to be used in a <c>using</c> statement</returns>
         public static TargetContext WithRenderTarget(this GraphicsDevice device, RenderTarget2D target) {
             return new TargetContext(device, target);
         }
 
+        /// <summary>
+        /// Starts a new <see cref="TargetContext"/> using the specified render target bindings.
+        /// The returned context automatically disposes when used in a <c>using</c> statement, which causes any previously applied render targets to be reapplied automatically.
+        /// </summary>
+        /// <param name="device">The graphics device</param>
+        /// <param name="targets">The render targets to apply</param>
+        /// <returns>The render target context, to be used in a <c>using</c> statement</returns>
+        public static TargetContext WithRenderTargets(this GraphicsDevice device, params RenderTargetBinding[] targets) {
+            return new TargetContext(device, targets);
+        }
+
         /// <summary>
         /// Represents a context in which a <see cref="RenderTarget2D"/> is applied.
         /// This class should be used with <see cref="GraphicsExtensions.WithRenderTarget"/>.
@@ -88,7 +99,20 @@ namespace MLEM.Extensions {
             /// </summary>
             /// <param name="device">The graphics device to apply the target on</param>
             /// <param name="target">The target to apply</param>
-            public TargetContext(GraphicsDevice device, RenderTarget2D target) {
+            public TargetContext(GraphicsDevice device, RenderTarget2D target) : this(device) {
+                device.SetRenderTarget(target);
+            }
+
+            /// <summary>
+            /// Creates a new target context with the given settings.
+            /// </summary>
+            /// <param name="device">The graphics device to apply the target on</param>
+            /// <param name="targets">The targets to apply</param>
+            public TargetContext(GraphicsDevice device, RenderTargetBinding[] targets) : this(device) {
+                device.SetRenderTargets(targets);
+            }
+
+            private TargetContext(GraphicsDevice device) {
                 this.device = device;
 #if FNA
                 // RenderTargetCount doesn't exist in FNA but we still want the optimization in MG
@@ -96,7 +120,6 @@ namespace MLEM.Extensions {
 #else
                 this.lastTargets = device.RenderTargetCount <= 0 ? null : device.GetRenderTargets();
 #endif
-                device.SetRenderTarget(target);
             }
 
             /// <summary>

MLEM/Extensions/RandomExtensions.cs

@@ -16,8 +16,7 @@ namespace MLEM.Extensions {
         /// <typeparam name="T">The entries' type</typeparam>
         /// <returns>A random entry</returns>
         public static T GetRandomEntry<T>(this Random random, ICollection<T> entries) {
-            // ElementAt internally optimizes for IList access so we don't have to here
+            return RandomExtensions.GetRandomEntry(entries, random.NextSingle());
-            return entries.ElementAt(random.Next(entries.Count));
         }
 
         /// <summary>
@@ -31,28 +30,12 @@ namespace MLEM.Extensions {
         /// <returns>A random entry, based on the entries' weight</returns>
         /// <exception cref="IndexOutOfRangeException">If the weight function returns different weights for the same entry</exception>
         public static T GetRandomWeightedEntry<T>(this Random random, ICollection<T> entries, Func<T, int> weightFunc) {
-            var totalWeight = entries.Sum(weightFunc);
+            return RandomExtensions.GetRandomWeightedEntry(entries, weightFunc, random.NextSingle());
-            var goalWeight = random.Next(totalWeight);
-            var currWeight = 0;
-            foreach (var entry in entries) {
-                currWeight += weightFunc(entry);
-                if (currWeight > goalWeight)
-                    return entry;
-            }
-            throw new IndexOutOfRangeException();
         }
 
         /// <inheritdoc cref="GetRandomWeightedEntry{T}(System.Random,System.Collections.Generic.ICollection{T},System.Func{T,int})"/>
         public static T GetRandomWeightedEntry<T>(this Random random, ICollection<T> entries, Func<T, float> weightFunc) {
-            var totalWeight = entries.Sum(weightFunc);
+            return RandomExtensions.GetRandomWeightedEntry(entries, weightFunc, random.NextSingle());
-            var goalWeight = random.NextDouble() * totalWeight;
-            var currWeight = 0F;
-            foreach (var entry in entries) {
-                currWeight += weightFunc(entry);
-                if (currWeight > goalWeight)
-                    return entry;
-            }
-            throw new IndexOutOfRangeException();
         }
 
         /// <summary>
@@ -87,5 +70,32 @@ namespace MLEM.Extensions {
         }
 #endif
 
+        internal static T GetRandomEntry<T>(ICollection<T> entries, float randomValue) {
+            // ElementAt internally optimizes for IList access so we don't have to here
+            return entries.ElementAt((int) (randomValue * entries.Count));
+        }
+
+        internal static T GetRandomWeightedEntry<T>(ICollection<T> entries, Func<T, int> weightFunc, float randomValue) {
+            var goalWeight = randomValue * entries.Sum(weightFunc);
+            var currWeight = 0;
+            foreach (var entry in entries) {
+                currWeight += weightFunc(entry);
+                if (currWeight > goalWeight)
+                    return entry;
+            }
+            throw new IndexOutOfRangeException();
+        }
+
+        internal static T GetRandomWeightedEntry<T>(ICollection<T> entries, Func<T, float> weightFunc, float randomValue) {
+            var goalWeight = randomValue * entries.Sum(weightFunc);
+            var currWeight = 0F;
+            foreach (var entry in entries) {
+                currWeight += weightFunc(entry);
+                if (currWeight > goalWeight)
+                    return entry;
+            }
+            throw new IndexOutOfRangeException();
+        }
+
     }
 }

MLEM/Font/CodePointSource.cs

@@ -63,6 +63,18 @@ namespace MLEM.Font {
             return (curr, 1);
         }
 
+        /// <summary>
+        /// Returns an index in this code point source that is as close to <paramref name="index"/> as possible, but not between two members of a surrogate pair. If the <paramref name="index"/> is already not between surrogate pairs, it is returned unchanged.
+        /// </summary>
+        /// <param name="index">The index to ensure is not between surrogates.</param>
+        /// <param name="increase">Whether the returned index should be increased by 1 (instead of decreased by 1) when it is between surrogates.</param>
+        /// <returns>An index close to <paramref name="index"/>, but not between surrogates.</returns>
+        public int EnsureSurrogateBoundary(int index, bool increase) {
+            if (index < this.Length && char.IsLowSurrogate(this[index]))
+                return increase || index <= 0 ? index + 1 : index - 1;
+            return index;
+        }
+
         /// <summary>Returns an enumerator that iterates through the collection.</summary>
         /// <returns>A <see cref="T:System.Collections.Generic.IEnumerator`1" /> that can be used to iterate through the collection.</returns>
         /// <filterpriority>1</filterpriority>

MLEM/Formatting/Codes/Code.cs

@@ -23,9 +23,9 @@ namespace MLEM.Formatting.Codes {
         public readonly Match Match;
         /// <summary>
         /// The tokens that this formatting code is a part of.
-        /// Note that this array only has multiple entries if additional tokens have to be started while this code is still applied.
+        /// Note that this collection only has multiple entries if additional tokens have to be started while this code is still applied.
         /// </summary>
-        public IList<Token> Tokens { get; internal set; }
+        public readonly List<Token> Tokens = new List<Token>();
 
         /// <summary>
         /// Creates a new formatting code based on a formatting code regex and its match.

MLEM/Formatting/Codes/FontCode.cs

@@ -18,5 +18,11 @@ namespace MLEM.Formatting.Codes {
             return this.font?.Invoke(defaultPick);
         }
 
+        /// <inheritdoc />
+        public override bool EndsHere(Code other) {
+            // turning a string bold/italic should only end when that specific code is ended using SimpleEndCode
+            return false;
+        }
+
     }
 }

MLEM/Formatting/TextFormatter.cs

@@ -102,7 +102,7 @@ namespace MLEM.Formatting {
                 this.Codes.Add(new Regex("<b>"), (f, m, r) => new FontCode(m, r, fnt => fnt.Bold));
                 this.Codes.Add(new Regex("<i>"), (f, m, r) => new FontCode(m, r, fnt => fnt.Italic));
                 this.Codes.Add(new Regex(@"<s(?: #([0-9\w]{6,8}) (([+-.0-9]*)))?>"), (f, m, r) => new ShadowCode(m, r,
-                    m.Groups[1].Success ? ColorHelper.FromHexString(m.Groups[1].Value) : this.DefaultShadowColor,
+                    ColorHelper.TryFromHexString(m.Groups[1].Value, out var color) ? color : this.DefaultShadowColor,
                     float.TryParse(m.Groups[2].Value, NumberStyles.Number, CultureInfo.InvariantCulture, out var offset) ? new Vector2(offset) : this.DefaultShadowOffset));
                 this.Codes.Add(new Regex("<u>"), (f, m, r) => new UnderlineCode(m, r, this.LineThickness, this.UnderlineOffset));
                 this.Codes.Add(new Regex("<st>"), (f, m, r) => new UnderlineCode(m, r, this.LineThickness, this.StrikethroughOffset));
@@ -111,7 +111,7 @@ namespace MLEM.Formatting {
                 this.Codes.Add(new Regex(@"<sup(?: ([+-.0-9]+))?>"), (f, m, r) => new SubSupCode(m, r,
                     float.TryParse(m.Groups[1].Value, NumberStyles.Number, CultureInfo.InvariantCulture, out var off) ? -off : this.DefaultSupOffset));
                 this.Codes.Add(new Regex(@"<o(?: #([0-9\w]{6,8}) (([+-.0-9]*)))?>"), (f, m, r) => new OutlineCode(m, r,
-                    m.Groups[1].Success ? ColorHelper.FromHexString(m.Groups[1].Value) : this.DefaultOutlineColor,
+                    ColorHelper.TryFromHexString(m.Groups[1].Value, out var color) ? color : this.DefaultOutlineColor,
                     float.TryParse(m.Groups[2].Value, NumberStyles.Number, CultureInfo.InvariantCulture, out var thickness) ? thickness : this.DefaultOutlineThickness,
                     this.OutlineDiagonals));
             }
@@ -124,12 +124,13 @@ namespace MLEM.Formatting {
                         this.Codes.Add(new Regex($"<c {c.Name}>"), (f, m, r) => new ColorCode(m, r, value));
                     }
                 }
-                this.Codes.Add(new Regex(@"<c #([0-9\w]{6,8})>"), (f, m, r) => new ColorCode(m, r, ColorHelper.FromHexString(m.Groups[1].Value)));
+                this.Codes.Add(new Regex(@"<c #([0-9\w]{6,8})>"), (f, m, r) => new ColorCode(m, r,
+                    ColorHelper.TryFromHexString(m.Groups[1].Value, out var color) ? color : Color.Red));
             }
 
             // animation codes
             if (hasAnimations) {
-                this.Codes.Add(new Regex(@"<a wobbly(?: ([+-.0-9]*) ([+-.0-9]*))?>"), (f, m, r) => new WobblyCode(m, r,
+                this.Codes.Add(new Regex("<a wobbly(?: ([+-.0-9]*) ([+-.0-9]*))?>"), (f, m, r) => new WobblyCode(m, r,
                     float.TryParse(m.Groups[1].Value, NumberStyles.Number, CultureInfo.InvariantCulture, out var mod) ? mod : this.DefaultWobblyModifier,
                     float.TryParse(m.Groups[2].Value, NumberStyles.Number, CultureInfo.InvariantCulture, out var heightMod) ? heightMod : this.DefaultWobblyHeight));
             }
@@ -155,11 +156,12 @@ namespace MLEM.Formatting {
             // resolve macros
             s = this.ResolveMacros(s);
             var tokens = new List<Token>();
-            var codes = new List<Code>();
+            var applied = new List<Code>();
+            var allCodes = new List<Code>();
             // add the formatting code right at the start of the string
             var firstCode = this.GetNextCode(s, 0, 0);
             if (firstCode != null)
-                codes.Add(firstCode);
+                applied.Add(firstCode);
             var index = 0;
             var rawIndex = 0;
             while (rawIndex < s.Length) {
@@ -167,24 +169,25 @@ namespace MLEM.Formatting {
                 // if we've reached the end of the string
                 if (next == null) {
                     var sub = s.Substring(rawIndex, s.Length - rawIndex);
-                    tokens.Add(new Token(codes.ToArray(), index, rawIndex, TextFormatter.StripFormatting(font, sub, codes), sub));
+                    tokens.Add(new Token(applied.ToArray(), index, rawIndex, TextFormatter.StripFormatting(font, sub, applied), sub));
                     break;
                 }
+                allCodes.Add(next);
 
                 // create a new token for the content up to the next code
                 var ret = s.Substring(rawIndex, next.Match.Index - rawIndex);
-                var strippedRet = TextFormatter.StripFormatting(font, ret, codes);
+                var strippedRet = TextFormatter.StripFormatting(font, ret, applied);
-                tokens.Add(new Token(codes.ToArray(), index, rawIndex, strippedRet, ret));
+                tokens.Add(new Token(applied.ToArray(), index, rawIndex, strippedRet, ret));
 
                 // move to the start of the next code
                 rawIndex = next.Match.Index;
                 index += strippedRet.Length;
 
                 // remove all codes that are incompatible with the next one and apply it
-                codes.RemoveAll(c => c.EndsHere(next) || next.EndsOther(c));
+                applied.RemoveAll(c => c.EndsHere(next) || next.EndsOther(c));
-                codes.Add(next);
+                applied.Add(next);
             }
-            return new TokenizedString(font, alignment, s, TextFormatter.StripFormatting(font, s, tokens.SelectMany(t => t.AppliedCodes)), tokens.ToArray());
+            return new TokenizedString(font, alignment, s, TextFormatter.StripFormatting(font, s, allCodes), tokens.ToArray(), allCodes.ToArray());
         }
 
         /// <summary>

MLEM/Formatting/Token.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Microsoft.Xna.Framework;
@@ -14,6 +15,7 @@ namespace MLEM.Formatting {
 
         /// <summary>
         /// The formatting codes that are applied on this token.
+        /// Codes are stored application order, with the first entry in the array being the code that was most recently applied.
         /// </summary>
         public readonly Code[] AppliedCodes;
         /// <summary>
@@ -45,11 +47,14 @@ namespace MLEM.Formatting {
         internal float[] InnerOffsets;
 
         internal Token(Code[] appliedCodes, int index, int rawIndex, string substring, string rawSubstring) {
+            Array.Reverse(appliedCodes);
             this.AppliedCodes = appliedCodes;
             this.Index = index;
             this.RawIndex = rawIndex;
             this.Substring = substring;
             this.RawSubstring = rawSubstring;
+            foreach (var code in appliedCodes)
+                code.Tokens.Add(this);
         }
 
         /// <summary>

MLEM/Formatting/TokenizedString.cs

@@ -1,11 +1,9 @@
 using System;
 using System.Collections.Generic;
-using System.Collections.ObjectModel;
 using System.Linq;
 using System.Text;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
-using MLEM.Extensions;
 using MLEM.Font;
 using MLEM.Formatting.Codes;
 using MLEM.Misc;
@@ -42,17 +40,11 @@ namespace MLEM.Formatting {
         private float initialInnerOffset;
         private RectangleF area;
 
-        internal TokenizedString(GenericFont font, TextAlignment alignment, string rawString, string strg, Token[] tokens) {
+        internal TokenizedString(GenericFont font, TextAlignment alignment, string rawString, string strg, Token[] tokens, Code[] allCodes) {
             this.RawString = rawString;
             this.String = strg;
             this.Tokens = tokens;
-
+            this.AllCodes = allCodes;
-            // since a code can be present in multiple tokens, we use Distinct here
-            this.AllCodes = tokens.SelectMany(t => t.AppliedCodes).Distinct().ToArray();
-            // TODO this can probably be optimized by keeping track of a code's tokens while tokenizing
-            foreach (var code in this.AllCodes)
-                code.Tokens = new ReadOnlyCollection<Token>(this.Tokens.Where(t => t.AppliedCodes.Contains(code)).ToList());
-
             this.Realign(font, alignment);
         }
 

MLEM/Graphics/AutoTiling.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
+using MLEM.Misc;
 using MLEM.Textures;
 
 namespace MLEM.Graphics {
@@ -86,92 +87,94 @@ namespace MLEM.Graphics {
         /// <param name="layerDepth">The layer depth to draw with.</param>
         /// <param name="overlayDepthOffset">An optional depth offset from <paramref name="layerDepth"/> that the overlay should be drawn with</param>
         public static void DrawExtendedAutoTile(SpriteBatch batch, Vector2 pos, TextureRegion backgroundTexture, TextureRegion overlayTexture, ConnectsTo connectsTo, Color backgroundColor, Color overlayColor, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0, float overlayDepthOffset = 0) {
-            var orig = origin ?? Vector2.Zero;
-            var sc = scale ?? Vector2.One;
-            var od = layerDepth + overlayDepthOffset;
-            var (r1, r2, r3, r4) = AutoTiling.CalculateExtendedAutoTile(overlayTexture.Area, connectsTo);
             if (backgroundTexture != null)
-                batch.Draw(backgroundTexture, pos, backgroundColor, 0, orig, sc, SpriteEffects.None, layerDepth);
+                batch.Draw(backgroundTexture, pos, backgroundColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
-            if (r1 != Rectangle.Empty)
+            var od = layerDepth + overlayDepthOffset;
-                batch.Draw(overlayTexture.Texture, pos, r1, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.UpLeft, origin, scale, od);
-            if (r2 != Rectangle.Empty)
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.UpRight, origin, scale, od);
-                batch.Draw(overlayTexture.Texture, pos, r2, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.DownLeft, origin, scale, od);
-            if (r3 != Rectangle.Empty)
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.DownRight, origin, scale, od);
-                batch.Draw(overlayTexture.Texture, pos, r3, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+        }
-            if (r4 != Rectangle.Empty)
+
-                batch.Draw(overlayTexture.Texture, pos, r4, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+        /// <summary>
+        /// This method allows for a single corner of a tiled texture to be drawn in an auto-tiling mode.
+        /// This allows, for example, a grass patch on a tilemap to have nice looking edges that transfer over into a path without any hard edges between tiles.
+        ///
+        /// For more information, and to draw all four corners at once, see <see cref="DrawExtendedAutoTile(Microsoft.Xna.Framework.Graphics.SpriteBatch,Microsoft.Xna.Framework.Vector2,MLEM.Textures.TextureRegion,MLEM.Textures.TextureRegion,MLEM.Graphics.AutoTiling.ConnectsTo,Microsoft.Xna.Framework.Color,Microsoft.Xna.Framework.Color,System.Nullable{Microsoft.Xna.Framework.Vector2},System.Nullable{Microsoft.Xna.Framework.Vector2},float,float)"/>
+        /// </summary>
+        /// <param name="batch">The sprite batch to use for drawing.</param>
+        /// <param name="pos">The position to draw at.</param>
+        /// <param name="overlayTexture">The first overlay region, as described in the summary.</param>
+        /// <param name="connectsTo">A function that determines whether two positions should connect.</param>
+        /// <param name="overlayColor">The color to draw border and corner textures with.</param>
+        /// <param name="corner">The corner of the auto-tile to draw. Can be <see cref="Direction2.UpLeft"/>, <see cref="Direction2.UpRight"/>, <see cref="Direction2.DownLeft"/> or <see cref="Direction2.DownRight"/>.</param>
+        /// <param name="origin">The origin to draw from.</param>
+        /// <param name="scale">The scale to draw with.</param>
+        /// <param name="layerDepth">The layer depth to draw with.</param>
+        public static void DrawExtendedAutoTileCorner(SpriteBatch batch, Vector2 pos, TextureRegion overlayTexture, ConnectsTo connectsTo, Color overlayColor, Direction2 corner, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0) {
+            var src = AutoTiling.CalculateExtendedAutoTile(overlayTexture.Area, connectsTo, corner);
+            if (src != Rectangle.Empty)
+                batch.Draw(overlayTexture.Texture, pos, src, overlayColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
         }
 
         /// <inheritdoc cref="DrawExtendedAutoTile(Microsoft.Xna.Framework.Graphics.SpriteBatch,Microsoft.Xna.Framework.Vector2,MLEM.Textures.TextureRegion,MLEM.Textures.TextureRegion,MLEM.Graphics.AutoTiling.ConnectsTo,Microsoft.Xna.Framework.Color,Microsoft.Xna.Framework.Color,System.Nullable{Microsoft.Xna.Framework.Vector2},System.Nullable{Microsoft.Xna.Framework.Vector2},float,float)"/>
         public static void DrawExtendedAutoTile(SpriteBatch batch, Vector2 pos, TextureRegion backgroundTexture, Func<int, TextureRegion> overlayTextures, ConnectsTo connectsTo, Color backgroundColor, Color overlayColor, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0, float overlayDepthOffset = 0) {
-            var orig = origin ?? Vector2.Zero;
-            var sc = scale ?? Vector2.One;
-            var od = layerDepth + overlayDepthOffset;
-            var (xUl, xUr, xDl, xDr) = AutoTiling.CalculateExtendedAutoTileOffsets(connectsTo);
             if (backgroundTexture != null)
-                batch.Draw(backgroundTexture, pos, backgroundColor, 0, orig, sc, SpriteEffects.None, layerDepth);
+                batch.Draw(backgroundTexture, pos, backgroundColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
-            if (xUl >= 0)
+            var od = layerDepth + overlayDepthOffset;
-                batch.Draw(overlayTextures(xUl), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.UpLeft, origin, scale, od);
-            if (xUr >= 0)
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.UpRight, origin, scale, od);
-                batch.Draw(overlayTextures(xUr), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.DownLeft, origin, scale, od);
-            if (xDl >= 0)
+            AutoTiling.DrawExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.DownRight, origin, scale, od);
-                batch.Draw(overlayTextures(xDl), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+        }
-            if (xDr >= 0)
+
-                batch.Draw(overlayTextures(xDr), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+        /// <inheritdoc cref="DrawExtendedAutoTileCorner(Microsoft.Xna.Framework.Graphics.SpriteBatch,Microsoft.Xna.Framework.Vector2,MLEM.Textures.TextureRegion,MLEM.Graphics.AutoTiling.ConnectsTo,Microsoft.Xna.Framework.Color,MLEM.Misc.Direction2,System.Nullable{Microsoft.Xna.Framework.Vector2},System.Nullable{Microsoft.Xna.Framework.Vector2},float)"/>
+        public static void DrawExtendedAutoTileCorner(SpriteBatch batch, Vector2 pos, Func<int, TextureRegion> overlayTextures, ConnectsTo connectsTo, Color overlayColor, Direction2 corner, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0) {
+            var src = AutoTiling.CalculateExtendedAutoTileOffset(connectsTo, corner);
+            if (src >= 0)
+                batch.Draw(overlayTextures(src), pos, overlayColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
         }
 
         /// <inheritdoc cref="DrawExtendedAutoTile(Microsoft.Xna.Framework.Graphics.SpriteBatch,Microsoft.Xna.Framework.Vector2,MLEM.Textures.TextureRegion,MLEM.Textures.TextureRegion,MLEM.Graphics.AutoTiling.ConnectsTo,Microsoft.Xna.Framework.Color,Microsoft.Xna.Framework.Color,System.Nullable{Microsoft.Xna.Framework.Vector2},System.Nullable{Microsoft.Xna.Framework.Vector2},float,float)"/>
         public static void AddExtendedAutoTile(StaticSpriteBatch batch, Vector2 pos, TextureRegion backgroundTexture, TextureRegion overlayTexture, ConnectsTo connectsTo, Color backgroundColor, Color overlayColor, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0, float overlayDepthOffset = 0, ICollection<StaticSpriteBatch.Item> items = null) {
-            var orig = origin ?? Vector2.Zero;
-            var sc = scale ?? Vector2.One;
-            var od = layerDepth + overlayDepthOffset;
-            var (r1, r2, r3, r4) = AutoTiling.CalculateExtendedAutoTile(overlayTexture.Area, connectsTo);
             if (backgroundTexture != null) {
-                var background = batch.Add(backgroundTexture, pos, backgroundColor, 0, orig, sc, SpriteEffects.None, layerDepth);
+                var background = batch.Add(backgroundTexture, pos, backgroundColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
                 items?.Add(background);
             }
-            if (r1 != Rectangle.Empty) {
+            var od = layerDepth + overlayDepthOffset;
-                var o1 = batch.Add(overlayTexture.Texture, pos, r1, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.UpLeft, origin, scale, od, items);
-                items?.Add(o1);
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.UpRight, origin, scale, od, items);
-            }
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.DownLeft, origin, scale, od, items);
-            if (r2 != Rectangle.Empty) {
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTexture, connectsTo, overlayColor, Direction2.DownRight, origin, scale, od, items);
-                var o2 = batch.Add(overlayTexture.Texture, pos, r2, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+        }
-                items?.Add(o2);
+
-            }
+        /// <inheritdoc cref="DrawExtendedAutoTileCorner(Microsoft.Xna.Framework.Graphics.SpriteBatch,Microsoft.Xna.Framework.Vector2,MLEM.Textures.TextureRegion,MLEM.Graphics.AutoTiling.ConnectsTo,Microsoft.Xna.Framework.Color,MLEM.Misc.Direction2,System.Nullable{Microsoft.Xna.Framework.Vector2},System.Nullable{Microsoft.Xna.Framework.Vector2},float)"/>
-            if (r3 != Rectangle.Empty) {
+        public static void AddExtendedAutoTileCorner(StaticSpriteBatch batch, Vector2 pos, TextureRegion overlayTexture, ConnectsTo connectsTo, Color overlayColor, Direction2 corner, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0, ICollection<StaticSpriteBatch.Item> items = null) {
-                var o3 = batch.Add(overlayTexture.Texture, pos, r3, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            var src = AutoTiling.CalculateExtendedAutoTile(overlayTexture.Area, connectsTo, corner);
-                items?.Add(o3);
+            if (src != Rectangle.Empty) {
-            }
+                var o4 = batch.Add(overlayTexture.Texture, pos, src, overlayColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
-            if (r4 != Rectangle.Empty) {
-                var o4 = batch.Add(overlayTexture.Texture, pos, r4, overlayColor, 0, orig, sc, SpriteEffects.None, od);
                 items?.Add(o4);
             }
         }
 
         /// <inheritdoc cref="DrawExtendedAutoTile(Microsoft.Xna.Framework.Graphics.SpriteBatch,Microsoft.Xna.Framework.Vector2,MLEM.Textures.TextureRegion,Func{int,MLEM.Textures.TextureRegion},MLEM.Graphics.AutoTiling.ConnectsTo,Microsoft.Xna.Framework.Color,Microsoft.Xna.Framework.Color,System.Nullable{Microsoft.Xna.Framework.Vector2},System.Nullable{Microsoft.Xna.Framework.Vector2},float,float)"/>
         public static void AddExtendedAutoTile(StaticSpriteBatch batch, Vector2 pos, TextureRegion backgroundTexture, Func<int, TextureRegion> overlayTextures, ConnectsTo connectsTo, Color backgroundColor, Color overlayColor, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0, float overlayDepthOffset = 0, ICollection<StaticSpriteBatch.Item> items = null) {
-            var orig = origin ?? Vector2.Zero;
-            var sc = scale ?? Vector2.One;
-            var od = layerDepth + overlayDepthOffset;
-            var (xUl, xUr, xDl, xDr) = AutoTiling.CalculateExtendedAutoTileOffsets(connectsTo);
             if (backgroundTexture != null) {
-                var background = batch.Add(backgroundTexture, pos, backgroundColor, 0, orig, sc, SpriteEffects.None, layerDepth);
+                var background = batch.Add(backgroundTexture, pos, backgroundColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
                 items?.Add(background);
             }
-            if (xUl >= 0) {
+            var od = layerDepth + overlayDepthOffset;
-                var o1 = batch.Add(overlayTextures(xUl), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.UpLeft, origin, scale, od, items);
-                items?.Add(o1);
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.UpRight, origin, scale, od, items);
-            }
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.DownLeft, origin, scale, od, items);
-            if (xUr >= 0) {
+            AutoTiling.AddExtendedAutoTileCorner(batch, pos, overlayTextures, connectsTo, overlayColor, Direction2.DownRight, origin, scale, od, items);
-                var o2 = batch.Add(overlayTextures(xUr), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+        }
-                items?.Add(o2);
+
-            }
+        /// <inheritdoc cref="DrawExtendedAutoTileCorner(Microsoft.Xna.Framework.Graphics.SpriteBatch,Microsoft.Xna.Framework.Vector2,MLEM.Textures.TextureRegion,MLEM.Graphics.AutoTiling.ConnectsTo,Microsoft.Xna.Framework.Color,MLEM.Misc.Direction2,System.Nullable{Microsoft.Xna.Framework.Vector2},System.Nullable{Microsoft.Xna.Framework.Vector2},float)"/>
-            if (xDl >= 0) {
+        public static void AddExtendedAutoTileCorner(StaticSpriteBatch batch, Vector2 pos, Func<int, TextureRegion> overlayTextures, ConnectsTo connectsTo, Color overlayColor, Direction2 corner, Vector2? origin = null, Vector2? scale = null, float layerDepth = 0, ICollection<StaticSpriteBatch.Item> items = null) {
-                var o3 = batch.Add(overlayTextures(xDl), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
+            var src = AutoTiling.CalculateExtendedAutoTileOffset(connectsTo, corner);
-                items?.Add(o3);
+            if (src >= 0) {
-            }
+                var o4 = batch.Add(overlayTextures(src), pos, overlayColor, 0, origin ?? Vector2.Zero, scale ?? Vector2.One, SpriteEffects.None, layerDepth);
-            if (xDr >= 0) {
-                var o4 = batch.Add(overlayTextures(xDr), pos, overlayColor, 0, orig, sc, SpriteEffects.None, od);
                 items?.Add(o4);
             }
         }
@@ -194,26 +197,36 @@ namespace MLEM.Graphics {
                 new Vector2(pos.X + w2 * scale.X, pos.Y + h2 * scale.Y), new Rectangle(textureRegion.X + w2 + xDr * w, textureRegion.Y + h2, w2, h2));
         }
 
-        private static (int, int, int, int) CalculateExtendedAutoTileOffsets(ConnectsTo connectsTo) {
+        private static int CalculateExtendedAutoTileOffset(ConnectsTo connectsTo, Direction2 corner) {
-            var up = connectsTo(0, -1);
+            switch (corner) {
-            var down = connectsTo(0, 1);
+                case Direction2.UpLeft: {
-            var left = connectsTo(-1, 0);
+                    var up = connectsTo(0, -1);
-            var right = connectsTo(1, 0);
+                    var left = connectsTo(-1, 0);
-            return (
+                    return up && left ? connectsTo(-1, -1) ? -1 : 12 : left ? 0 : up ? 8 : 4;
-                up && left ? connectsTo(-1, -1) ? -1 : 12 : left ? 0 : up ? 8 : 4,
+                }
-                up && right ? connectsTo(1, -1) ? -1 : 13 : right ? 1 : up ? 9 : 5,
+                case Direction2.UpRight: {
-                down && left ? connectsTo(-1, 1) ? -1 : 14 : left ? 2 : down ? 10 : 6,
+                    var up = connectsTo(0, -1);
-                down && right ? connectsTo(1, 1) ? -1 : 15 : right ? 3 : down ? 11 : 7);
+                    var right = connectsTo(1, 0);
+                    return up && right ? connectsTo(1, -1) ? -1 : 13 : right ? 1 : up ? 9 : 5;
+                }
+                case Direction2.DownLeft: {
+                    var down = connectsTo(0, 1);
+                    var left = connectsTo(-1, 0);
+                    return down && left ? connectsTo(-1, 1) ? -1 : 14 : left ? 2 : down ? 10 : 6;
+                }
+                case Direction2.DownRight: {
+                    var down = connectsTo(0, 1);
+                    var right = connectsTo(1, 0);
+                    return down && right ? connectsTo(1, 1) ? -1 : 15 : right ? 3 : down ? 11 : 7;
+                }
+                default:
+                    throw new ArgumentOutOfRangeException(nameof(corner), corner, null);
+            }
         }
 
-        private static (Rectangle, Rectangle, Rectangle, Rectangle) CalculateExtendedAutoTile(Rectangle textureRegion, ConnectsTo connectsTo) {
+        private static Rectangle CalculateExtendedAutoTile(Rectangle textureRegion, ConnectsTo connectsTo, Direction2 corner) {
-            var (xUl, xUr, xDl, xDr) = AutoTiling.CalculateExtendedAutoTileOffsets(connectsTo);
+            var off = AutoTiling.CalculateExtendedAutoTileOffset(connectsTo, corner);
-            var (w, h) = (textureRegion.Width, textureRegion.Height);
+            return off < 0 ? Rectangle.Empty : new Rectangle(textureRegion.X + off * textureRegion.Width, textureRegion.Y, textureRegion.Width, textureRegion.Height);
-            return (
-                xUl < 0 ? Rectangle.Empty : new Rectangle(textureRegion.X + xUl * w, textureRegion.Y, w, h),
-                xUr < 0 ? Rectangle.Empty : new Rectangle(textureRegion.X + xUr * w, textureRegion.Y, w, h),
-                xDl < 0 ? Rectangle.Empty : new Rectangle(textureRegion.X + xDl * w, textureRegion.Y, w, h),
-                xDr < 0 ? Rectangle.Empty : new Rectangle(textureRegion.X + xDr * w, textureRegion.Y, w, h));
         }
 
         /// <summary>

MLEM/Input/InputHandler.cs

@@ -121,11 +121,11 @@ namespace MLEM.Input {
         /// <summary>
         /// Contains the <see cref="LastTouchState"/>, but with the <see cref="GraphicsDevice.Viewport"/> taken into account.
         /// </summary>
-        public IList<TouchLocation> LastViewportTouchState { get; private set; }
+        public IList<TouchLocation> LastViewportTouchState { get; private set; } = new List<TouchLocation>();
         /// <summary>
         /// Contains the <see cref="TouchState"/>, but with the <see cref="GraphicsDevice.Viewport"/> taken into account.
         /// </summary>
-        public IList<TouchLocation> ViewportTouchState { get; private set; }
+        public IList<TouchLocation> ViewportTouchState { get; private set; } = new List<TouchLocation>();
         /// <summary>
         /// Contains the amount of gamepads that are currently connected. Note that this value will be set to 0 if <see cref="HandleGamepads"/> is false.
         /// This field is automatically updated in <see cref="Update()"/>.
@@ -342,6 +342,7 @@ namespace MLEM.Input {
                 }
             } else {
                 this.TouchState = new TouchCollection(InputHandler.EmptyTouchLocations);
+                this.ViewportTouchState = this.TouchState;
                 this.gestures.Clear();
             }
 

MLEM/Input/TextInput.cs

@@ -105,7 +105,8 @@ namespace MLEM.Input {
             set {
                 var val = (int) MathHelper.Clamp(value, 0F, this.text.Length);
                 if (this.caretPos != val) {
-                    this.caretPos = val;
+                    // ensure that we don't move to a location that is between high and low surrogates
+                    this.caretPos = new CodePointSource(this.text).EnsureSurrogateBoundary(val, val > this.caretPos);
                     this.caretBlinkTimer = 0;
                     this.SetTextDataDirty(false);
                 }
@@ -203,6 +204,21 @@ namespace MLEM.Input {
             }
         }
         /// <summary>
+        /// The maximum amount of lines that can be visible in this text input, based on its <see cref="Size"/>, the used <see cref="Font"/> and its <see cref="TextScale"/>.
+        /// Note that this may return a number higher than 1 even if this is not a <see cref="Multiline"/> text input.
+        /// </summary>
+        public int MaxDisplayedLines => (this.Size.Y / (this.Font.LineHeight * this.TextScale)).Floor();
+        /// <summary>
+        /// The index of the first line that is currently visible.
+        /// This value can be changed using <see cref="ShowLine"/>.
+        /// </summary>
+        public int FirstVisibleLine { get; private set; }
+        /// <summary>
+        /// The total amount of lines of text that this text input currently has, including additional lines added by automatic wrapping.
+        /// If this is not a <see cref="Multiline"/> text input, this value is always 1.
+        /// </summary>
+        public int Lines { get; private set; }
+        /// <summary>
         /// A function that is invoked when a string of text should be copied to the clipboard.
         /// MLEM.Ui uses the TextCopy package for this, but other options are available.
         /// </summary>
@@ -217,10 +233,9 @@ namespace MLEM.Input {
 
         private char? maskingCharacter;
         private double caretBlinkTimer;
-        private string displayedText;
+        private string visibleText;
-        private string[] splitText;
+        private string[] multilineSplitText;
         private int textOffset;
-        private int lineOffset;
         private int caretPos;
         private int caretLine;
         private int caretPosInLine;
@@ -301,9 +316,9 @@ namespace MLEM.Input {
                 this.CaretPos--;
             } else if (this.CaretPos < this.text.Length && input.TryConsumePressed(Keys.Right)) {
                 this.CaretPos++;
-            } else if (this.Multiline && input.IsPressedAvailable(Keys.Up) && this.MoveCaretToLine(this.CaretLine - 1)) {
+            } else if (this.Multiline && input.IsPressedAvailable(Keys.Up) && (input.IsModifierKeyDown(ModifierKey.Control) ? this.ShowLine(this.FirstVisibleLine - 1) : this.MoveCaretToLine(this.CaretLine - 1))) {
                 input.TryConsumePressed(Keys.Up);
-            } else if (this.Multiline && input.IsPressedAvailable(Keys.Down) && this.MoveCaretToLine(this.CaretLine + 1)) {
+            } else if (this.Multiline && input.IsPressedAvailable(Keys.Down) && (input.IsModifierKeyDown(ModifierKey.Control) ? this.ShowLine(this.FirstVisibleLine + 1) : this.MoveCaretToLine(this.CaretLine + 1))) {
                 input.TryConsumePressed(Keys.Down);
             } else if (this.CaretPos != 0 && input.TryConsumePressed(Keys.Home)) {
                 this.CaretPos = 0;
@@ -339,12 +354,12 @@ namespace MLEM.Input {
             this.UpdateTextDataIfDirty();
 
             var scale = this.TextScale * drawScale;
-            this.Font.DrawString(batch, this.displayedText, textPos, textColor, 0, Vector2.Zero, scale, SpriteEffects.None, 0);
+            this.Font.DrawString(batch, this.visibleText, textPos, textColor, 0, Vector2.Zero, scale, SpriteEffects.None, 0);
 
             if (caretWidth > 0 && this.caretBlinkTimer < 0.5F) {
                 var caretDrawPos = textPos + new Vector2(this.caretDrawOffset * scale, 0);
                 if (this.Multiline)
-                    caretDrawPos.Y += this.Font.LineHeight * (this.CaretLine - this.lineOffset) * scale;
+                    caretDrawPos.Y += this.Font.LineHeight * (this.CaretLine - this.FirstVisibleLine) * scale;
                 batch.Draw(batch.GetBlankTexture(), new RectangleF(caretDrawPos, new Vector2(caretWidth * drawScale, this.Font.LineHeight * scale)), null, textColor);
             }
         }
@@ -360,7 +375,7 @@ namespace MLEM.Input {
             if (!this.FilterText(ref strg, removeMismatching))
                 return;
             if (this.MaximumCharacters != null && strg.Length > this.MaximumCharacters)
-                strg = strg.Substring(0, this.MaximumCharacters.Value);
+                strg = strg.Substring(0, new CodePointSource(strg).EnsureSurrogateBoundary(this.MaximumCharacters.Value, false));
             this.text.Clear();
             this.text.Append(strg);
             this.CaretPos = this.text.Length;
@@ -378,7 +393,7 @@ namespace MLEM.Input {
             if (!this.FilterText(ref strg, removeMismatching))
                 return false;
             if (this.MaximumCharacters != null && this.text.Length + strg.Length > this.MaximumCharacters)
-                strg = strg.Substring(0, this.MaximumCharacters.Value - this.text.Length);
+                strg = strg.Substring(0, new CodePointSource(strg).EnsureSurrogateBoundary(this.MaximumCharacters.Value - this.text.Length, false));
             this.text.Insert(this.CaretPos, strg);
             this.CaretPos += strg.Length;
             this.SetTextDataDirty();
@@ -393,7 +408,8 @@ namespace MLEM.Input {
         public bool RemoveText(int index, int length) {
             if (index < 0 || index >= this.text.Length)
                 return false;
-            this.text.Remove(index, length);
+            var source = new CodePointSource(this.text);
+            this.text.Remove(source.EnsureSurrogateBoundary(index, false), source.EnsureSurrogateBoundary(index + length, true) - index);
             // ensure that caret pos is still in bounds
             this.CaretPos = this.CaretPos;
             this.SetTextDataDirty();
@@ -417,7 +433,7 @@ namespace MLEM.Input {
                         this.CaretPos = destStart + destAccum.Length;
                         return true;
                     }
-                    destAccum += this.text[destStart + destAccum.Length];
+                    destAccum += CodePointSource.ToString(new CodePointSource(this.text).GetCodePoint(destStart + destAccum.Length).CodePoint);
                 }
                 // if we don't find a proper position, just move to the end of the destination line
                 this.CaretPos = destEnd;
@@ -426,6 +442,26 @@ namespace MLEM.Input {
             return false;
         }
 
+        /// <summary>
+        /// Moves visual focus into such bounds that the given line will be the first visible line of this text input.
+        /// </summary>
+        /// <param name="line">The first line that should be visible.</param>
+        /// <returns>Whether the line can be the fist visible line, and wasn't already the first visible line.</returns>
+        public bool ShowLine(int line) {
+            if (this.FirstVisibleLine != line && line >= 0 && line < this.Lines - (this.MaxDisplayedLines - 1)) {
+                this.FirstVisibleLine = line;
+
+                // move the caret into visible bounds if necessary
+                var clampedCaretLine = (int) MathHelper.Clamp(this.CaretLine, line, line + this.MaxDisplayedLines - 1F);
+                if (clampedCaretLine != this.CaretLine)
+                    this.MoveCaretToLine(clampedCaretLine);
+
+                this.SetTextDataDirty(false);
+                return true;
+            }
+            return false;
+        }
+
         private bool FilterText(ref string text, bool removeMismatching) {
             var result = new StringBuilder();
             foreach (var codePoint in new CodePointSource(text)) {
@@ -458,49 +494,50 @@ namespace MLEM.Input {
 
             if (this.Multiline) {
                 // soft wrap if we're multiline
-                this.splitText = this.Font.SplitStringSeparate(visualText, this.Size.X, this.TextScale).ToArray();
+                this.multilineSplitText = this.Font.SplitStringSeparate(visualText, this.Size.X, this.TextScale).ToArray();
-                this.displayedText = string.Join("\n", this.splitText);
+                this.visibleText = string.Join("\n", this.multilineSplitText);
+                this.Lines = this.visibleText.Count(c => c == '\n') + 1;
                 this.UpdateCaretData();
 
-                if (this.Font.MeasureString(this.displayedText).Y * this.TextScale > this.Size.Y) {
+                if (this.Font.MeasureString(this.visibleText).Y * this.TextScale > this.Size.Y) {
-                    var maxLines = (this.Size.Y / (this.Font.LineHeight * this.TextScale)).Floor();
+                    if (this.FirstVisibleLine > this.CaretLine) {
-                    if (this.lineOffset > this.CaretLine) {
                         // if we're moving up
-                        this.lineOffset = this.CaretLine;
+                        this.FirstVisibleLine = this.CaretLine;
-                    } else if (this.CaretLine >= maxLines) {
+                    } else if (this.CaretLine >= this.MaxDisplayedLines) {
                         // if we're moving down
-                        var limit = this.CaretLine - (maxLines - 1);
+                        var limit = this.CaretLine - (this.MaxDisplayedLines - 1);
-                        if (limit > this.lineOffset)
+                        if (limit > this.FirstVisibleLine)
-                            this.lineOffset = limit;
+                            this.FirstVisibleLine = limit;
                     }
                     // calculate resulting string
                     var ret = new StringBuilder();
                     var lines = 0;
                     var originalIndex = 0;
-                    for (var i = 0; i < this.displayedText.Length; i++) {
+                    for (var i = 0; i < this.visibleText.Length; i++) {
-                        if (lines >= this.lineOffset) {
+                        if (lines >= this.FirstVisibleLine) {
                             if (ret.Length <= 0)
                                 this.textOffset = originalIndex;
-                            ret.Append(this.displayedText[i]);
+                            ret.Append(this.visibleText[i]);
                         }
-                        if (this.displayedText[i] == '\n') {
+                        if (this.visibleText[i] == '\n') {
                             lines++;
                             if (visualText[originalIndex] == '\n')
                                 originalIndex++;
                         } else {
                             originalIndex++;
                         }
-                        if (lines - this.lineOffset >= maxLines)
+                        if (lines - this.FirstVisibleLine >= this.MaxDisplayedLines)
                             break;
                     }
-                    this.displayedText = ret.ToString();
+                    this.visibleText = ret.ToString();
                 } else {
-                    this.lineOffset = 0;
+                    this.FirstVisibleLine = 0;
                     this.textOffset = 0;
                 }
             } else {
-                this.splitText = null;
+                this.multilineSplitText = null;
-                this.lineOffset = 0;
+                this.FirstVisibleLine = 0;
+                this.Lines = 1;
                 // not multiline, so scroll horizontally based on caret position
                 if (this.Font.MeasureString(visualText).X * this.TextScale > this.Size.X) {
                     if (this.textOffset > this.CaretPos) {
@@ -514,9 +551,9 @@ namespace MLEM.Input {
                             this.textOffset = bound;
                     }
                     var visible = visualText.ToString(this.textOffset, visualText.Length - this.textOffset);
-                    this.displayedText = this.Font.TruncateString(visible, this.Size.X, this.TextScale);
+                    this.visibleText = this.Font.TruncateString(visible, this.Size.X, this.TextScale);
                 } else {
-                    this.displayedText = visualText.ToString();
+                    this.visibleText = visualText.ToString();
                     this.textOffset = 0;
                 }
                 this.UpdateCaretData();
@@ -524,9 +561,9 @@ namespace MLEM.Input {
         }
 
         private void UpdateCaretData() {
-            if (this.splitText != null) {
+            if (this.multilineSplitText != null) {
                 // the code below will never execute if our text is empty, so reset our caret position fully
-                if (this.splitText.Length <= 0) {
+                if (this.multilineSplitText.Length <= 0) {
                     this.caretLine = 0;
                     this.caretPosInLine = 0;
                     this.caretDrawOffset = 0;
@@ -535,9 +572,9 @@ namespace MLEM.Input {
 
                 var line = 0;
                 var index = 0;
-                for (var d = 0; d < this.splitText.Length; d++) {
+                for (var d = 0; d < this.multilineSplitText.Length; d++) {
                     var startOfLine = 0;
-                    var split = this.splitText[d];
+                    var split = this.multilineSplitText[d];
                     for (var i = 0; i <= split.Length; i++) {
                         if (index == this.CaretPos) {
                             this.caretLine = line;
@@ -557,20 +594,20 @@ namespace MLEM.Input {
                     // max width splits
                     line++;
                 }
-            } else if (this.displayedText != null) {
+            } else if (this.visibleText != null) {
                 this.caretLine = 0;
                 this.caretPosInLine = this.CaretPos;
-                this.caretDrawOffset = this.Font.MeasureString(this.displayedText.Substring(0, this.CaretPos - this.textOffset)).X;
+                this.caretDrawOffset = this.Font.MeasureString(this.visibleText.Substring(0, this.CaretPos - this.textOffset)).X;
             }
         }
 
         private (int, int) GetLineBounds(int boundLine) {
-            if (this.splitText != null) {
+            if (this.multilineSplitText != null) {
                 var line = 0;
                 var index = 0;
                 var startOfLineIndex = 0;
-                for (var d = 0; d < this.splitText.Length; d++) {
+                for (var d = 0; d < this.multilineSplitText.Length; d++) {
-                    var split = this.splitText[d];
+                    var split = this.multilineSplitText[d];
                     for (var i = 0; i < split.Length; i++) {
                         index++;
                         if (split[i] == '\n') {

MLEM/MLEM.FNA.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
         <RootNamespace>MLEM</RootNamespace>
         <DefineConstants>$(DefineConstants);FNA</DefineConstants>
     </PropertyGroup>
@@ -21,7 +21,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <ProjectReference Include="..\FNA\FNA.csproj">
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.csproj">
             <PrivateAssets>all</PrivateAssets>
         </ProjectReference>
 

MLEM/MLEM.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net452;netstandard2.0;net7.0</TargetFrameworks>
+        <TargetFrameworks>net452;netstandard2.0;net8.0</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
-        <IsTrimmable>true</IsTrimmable>
+        <IsAotCompatible Condition="'$(TargetFramework)'=='net8.0'">true</IsAotCompatible>
     </PropertyGroup>
 
     <PropertyGroup>

MLEM/Misc/Easings.cs

@@ -1,4 +1,5 @@
 using System;
+using Microsoft.Xna.Framework;
 
 namespace MLEM.Misc {
     /// <summary>
@@ -8,6 +9,21 @@ namespace MLEM.Misc {
     /// </summary>
     public static class Easings {
 
+        /// <summary>
+        /// An easing function that constantly returns 0, regardless of the input percentage.
+        /// This is useful for chaining using <see cref="AndThen(MLEM.Misc.Easings.Easing,MLEM.Misc.Easings.Easing)"/>.
+        /// </summary>
+        public static readonly Easing Zero = p => 0;
+        /// <summary>
+        /// An easing function that constantly returns 1, regardless of the input percentage.
+        /// This is useful for chaining using <see cref="AndThen(MLEM.Misc.Easings.Easing,MLEM.Misc.Easings.Easing)"/>.
+        /// </summary>
+        public static readonly Easing One = p => 1;
+        /// <summary>
+        /// A linear easing function that returns the input percentage without modifying it.
+        /// </summary>
+        public static readonly Easing Linear = p => p;
+
         /// <summary>https://easings.net/#easeInSine</summary>
         public static readonly Easing InSine = p => 1 - (float) Math.Cos(p * Math.PI / 2);
         /// <summary>https://easings.net/#easeOutSine</summary>
@@ -170,6 +186,17 @@ namespace MLEM.Misc {
             };
         }
 
+        /// <summary>
+        /// Causes output from the easing function to be clamped between the <paramref name="min"/> and <paramref name="max"/> values passed.
+        /// </summary>
+        /// <param name="easing">The easing function to clamp.</param>
+        /// <param name="min">The minimum output value to clamp to, defaults to 0.</param>
+        /// <param name="max">The maximum output value to clamp to, defaults to 1.</param>
+        /// <returns>A clamped easing function.</returns>
+        public static Easing Clamp(this Easing easing, float min = 0, float max = 1) {
+            return p => MathHelper.Clamp(easing(p), min, max);
+        }
+
         /// <summary>
         /// A delegate method used by <see cref="Easings"/>.
         /// </summary>

MLEM/Misc/SingleRandom.cs

@@ -1,4 +1,8 @@
-namespace MLEM.Misc {
+using System;
+using System.Collections.Generic;
+using MLEM.Extensions;
+
+namespace MLEM.Misc {
     /// <summary>
     /// The SingleRandom class allows generating single, one-off pseudorandom numbers based on a seed or a <see cref="SeedSource"/>.
     /// The types of numbers that can be generated are <see cref="int"/> and <see cref="float"/>, both of which can be generated with specific minimum and maximum values if desired.
@@ -138,5 +142,35 @@
             return (maxValue - minValue) * SingleRandom.Single(source) + minValue;
         }
 
+        /// <summary>
+        /// Gets a random entry from the given collection with uniform chance.
+        /// </summary>
+        /// <param name="entries">The entries to choose from</param>
+        /// <param name="source">The <see cref="SeedSource"/> to use.</param>
+        /// <typeparam name="T">The entries' type</typeparam>
+        /// <returns>A random entry</returns>
+        public static T GetRandomEntry<T>(ICollection<T> entries, SeedSource source) {
+            return RandomExtensions.GetRandomEntry(entries, SingleRandom.Single(source));
+        }
+
+        /// <summary>
+        /// Returns a random entry from the given collection based on the specified weight function.
+        /// A higher weight for an entry increases its likeliness of being picked.
+        /// </summary>
+        /// <param name="entries">The entries to choose from</param>
+        /// <param name="weightFunc">A function that applies weight to each entry</param>
+        /// <param name="source">The <see cref="SeedSource"/> to use.</param>
+        /// <typeparam name="T">The entries' type</typeparam>
+        /// <returns>A random entry, based on the entries' weight</returns>
+        /// <exception cref="IndexOutOfRangeException">If the weight function returns different weights for the same entry</exception>
+        public static T GetRandomWeightedEntry<T>(ICollection<T> entries, Func<T, int> weightFunc, SeedSource source) {
+            return RandomExtensions.GetRandomWeightedEntry(entries, weightFunc, SingleRandom.Single(source));
+        }
+
+        /// <inheritdoc cref="GetRandomWeightedEntry{T}(System.Collections.Generic.ICollection{T},System.Func{T,int},MLEM.Misc.SeedSource)"/>
+        public static T GetRandomWeightedEntry<T>(ICollection<T> entries, Func<T, float> weightFunc, SeedSource source) {
+            return RandomExtensions.GetRandomWeightedEntry(entries, weightFunc, SingleRandom.Single(source));
+        }
+
     }
 }

MLEM/Textures/NinePatch.cs

@@ -158,11 +158,13 @@ namespace MLEM.Textures {
                         case NinePatchMode.Tile:
                             var width = src.Width * patchScale;
                             var height = src.Height * patchScale;
-                            for (var x = 0F; x < rect.Width; x += width) {
+                            if (width > 0 && height > 0) {
-                                for (var y = 0F; y < rect.Height; y += height) {
+                                for (var x = 0F; x < rect.Width; x += width) {
-                                    var size = new Vector2(Math.Min(rect.Width - x, width), Math.Min(rect.Height - y, height));
+                                    for (var y = 0F; y < rect.Height; y += height) {
-                                    var srcSize = (size / patchScale).CeilCopy().ToPoint();
+                                        var size = new Vector2(Math.Min(rect.Width - x, width), Math.Min(rect.Height - y, height));
-                                    batch.Draw(texture.Region.Texture, new RectangleF(rect.Location + new Vector2(x, y), size), new Rectangle(src.X, src.Y, srcSize.X, srcSize.Y), color, rotation, origin, effects, layerDepth);
+                                        var srcSize = (size / patchScale).CeilCopy().ToPoint();
+                                        batch.Draw(texture.Region.Texture, new RectangleF(rect.Location + new Vector2(x, y), size), new Rectangle(src.X, src.Y, srcSize.X, srcSize.Y), color, rotation, origin, effects, layerDepth);
+                                    }
                                 }
                             }
                             break;

NuGet.config

@@ -1,5 +0,0 @@
-<configuration>
-    <config>
-        <add key="globalPackagesFolder" value="./packages" />
-    </config>
-</configuration>

README.md

@@ -11,6 +11,7 @@ MLEM is platform-agnostic and multi-targets .NET Standard 2.0, .NET 6.0 and .NET
 - See tutorials and API documentation on [the website](https://mlem.ellpeck.de/)
 - Check out [the demos](https://github.com/Ellpeck/MLEM/tree/main/Demos) on [Desktop](https://github.com/Ellpeck/MLEM/tree/main/Demos.DesktopGL) or [Android](https://github.com/Ellpeck/MLEM/tree/main/Demos.Android)
 - See [the changelog](https://github.com/Ellpeck/MLEM/blob/main/CHANGELOG.md) for information on updates
+- Join [the Discord server](https://link.ellpeck.de/discordweb) to ask questions
 
 # Packages
 - **MLEM** is the base package, which provides various small addons and abstractions for MonoGame and FNA, including a text formatting system and simple input handling

Sandbox/Content/Content.mgcb

@@ -10,8 +10,6 @@
 
 #-------------------------------- References --------------------------------#
 
-/reference:..\..\packages\monogame.extended.content.pipeline\3.8.0\tools\MonoGame.Extended.Content.Pipeline.dll
-
 #---------------------------------- Content ---------------------------------#
 
 #begin Fonts/Cadman_Roman.otf
@@ -20,11 +18,6 @@
 #begin Fonts/Symbola-Emoji.ttf
 /copy:Fonts/Symbola-Emoji.ttf
 
-#begin Fonts/Regular.fnt
-/importer:BitmapFontImporter
-/processor:BitmapFontProcessor
-/build:Fonts/Regular.fnt
-
 #begin Fonts/RegularTexture.png
 /importer:TextureImporter
 /processor:TextureProcessor
@@ -64,5 +57,3 @@
 
 #begin Textures/Test.png
 /copy:Textures/Test.png
-
-

Sandbox/Content/Fonts/Regular.fnt

@@ -1,330 +0,0 @@
-<?xml version="1.0"?>
-<font>
-  <info face="BitPotionExt" size="-16" bold="0" italic="0" charset="" unicode="1" stretchH="100" smooth="0" aa="1" padding="0,0,0,0" spacing="1,1" outline="0"/>
-  <common lineHeight="14" base="11" scaleW="128" scaleH="128" pages="1" packed="0" alphaChnl="0" redChnl="4" greenChnl="4" blueChnl="4"/>
-  <pages>
-    <page id="0" file="RegularTexture.png" />
-  </pages>
-  <chars count="320">
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-</map>

Sandbox/Content/Tiled/Tileset.tsx

@@ -1,123 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<tileset version="1.2" tiledversion="1.3.1" name="TownTiles" tilewidth="16" tileheight="16" tilecount="512" columns="32">
-    <image source="Tiles.png" width="512" height="256" />
-    <tile id="3">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="4">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="5">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="7">
-        <objectgroup draworder="index" id="5">
-            <object id="4" x="8" y="3" width="5" height="10" />
-        </objectgroup>
-    </tile>
-    <tile id="8">
-        <objectgroup draworder="index" id="2">
-            <object id="1" x="3" y="2" width="10" height="5" />
-        </objectgroup>
-    </tile>
-    <tile id="15">
-        <animation>
-            <frame tileid="15" duration="1000" />
-            <frame tileid="47" duration="1000" />
-        </animation>
-    </tile>
-    <tile id="33">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="34">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="35">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="36">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="37">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="65">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="66">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="67">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="68">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="69">
-        <properties>
-            <property name="Walkability" type="int" value="30" />
-        </properties>
-    </tile>
-    <tile id="72">
-        <objectgroup draworder="index" id="2">
-            <object id="1" x="12" y="0" width="4" height="4" />
-        </objectgroup>
-    </tile>
-    <tile id="132">
-        <properties>
-            <property name="Walkability" type="int" value="60" />
-        </properties>
-    </tile>
-    <tile id="172">
-        <properties>
-            <property name="LightColor" type="color" value="#ffaa6300" />
-            <property name="LightRadius" type="float" value="5.5" />
-            <property name="LightType" value="Lamp" />
-        </properties>
-    </tile>
-    <tile id="289">
-        <properties>
-            <property name="LightColor" type="color" value="#ff676e73" />
-            <property name="LightRadius" type="float" value="1.5" />
-            <property name="LightType" value="Window" />
-        </properties>
-    </tile>
-    <tile id="353">
-        <properties>
-            <property name="LightColor" type="color" value="#ff676e73" />
-            <property name="LightRadius" type="float" value="2.5" />
-            <property name="LightType" value="Window" />
-        </properties>
-    </tile>
-    <tile id="385">
-        <properties>
-            <property name="LightColor" type="color" value="#ff676e73" />
-            <property name="LightRadius" type="float" value="2.5" />
-            <property name="LightType" value="Window" />
-        </properties>
-    </tile>
-</tileset>

Sandbox/Sandbox.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <IsPackable>false</IsPackable>
     </PropertyGroup>
 
@@ -19,16 +19,11 @@
         <PackageReference Include="MonoGame.Extended.Content.Pipeline" Version="3.8.0" />
         <PackageReference Include="MonoGame.Extended.Tiled" Version="3.8.0" />
         <PackageReference Include="MonoGame.Framework.DesktopGL" Version="3.8.1.303" />
-        <PackageReference Include="FontStashSharp.MonoGame" Version="1.2.8" />
+        <PackageReference Include="FontStashSharp.MonoGame" Version="1.3.3" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     </ItemGroup>
 
     <ItemGroup>
         <Content Include="Content\Fonts\Symbola-Emoji.ttf" />
     </ItemGroup>
-
-    <Target Name="RestoreDotnetTools" BeforeTargets="Restore">
-        <Message Text="Restoring dotnet tools" Importance="High" />
-        <Exec Command="dotnet tool restore" />
-    </Target>
 </Project>

Tests/Tests.FNA.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <VSTestLogger>nunit</VSTestLogger>
         <VSTestResultsDirectory>TestResults.FNA</VSTestResultsDirectory>
         <RunSettingsFilePath>Tests.FNA.runsettings</RunSettingsFilePath>
@@ -18,24 +18,21 @@
     </ItemGroup>
 
     <ItemGroup>
-        <ProjectReference Include="..\FNA\FNA.Core.csproj" />
+        <ProjectReference Include="..\ThirdParty\FNA\FNA.Core.csproj" />
-        <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
 
-        <PackageReference Include="coverlet.collector" Version="3.2.0">
+        <PackageReference Include="coverlet.collector" Version="6.0.0" />
-            <PrivateAssets>all</PrivateAssets>
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        <PackageReference Include="NUnit" Version="3.14.0" />
-        </PackageReference>
+        <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.0" />
+        <PackageReference Include="NunitXml.TestLogger" Version="3.1.15" />
-        <PackageReference Include="NUnit" Version="3.13.3" />
-        <PackageReference Include="NUnit3TestAdapter" Version="4.3.1" />
-        <PackageReference Include="NunitXml.TestLogger" Version="3.0.127" />
     </ItemGroup>
 
     <ItemGroup>
         <Content Include="Content/**">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </Content>
-        <Content Include="../FnaNative/**">
+        <Content Include="../ThirdParty/Native/**">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
             <Link>%(Filename)%(Extension)</Link>
         </Content>

Tests/Tests.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <VSTestLogger>nunit</VSTestLogger>
         <VSTestResultsDirectory>TestResults</VSTestResultsDirectory>
         <RunSettingsFilePath>Tests.runsettings</RunSettingsFilePath>
@@ -20,14 +20,11 @@
         <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
         <PackageReference Include="MonoGame.Extended" Version="3.8.0" />
 
-        <PackageReference Include="coverlet.collector" Version="3.2.0">
+        <PackageReference Include="coverlet.collector" Version="6.0.0" />
-            <PrivateAssets>all</PrivateAssets>
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        <PackageReference Include="NUnit" Version="3.14.0" />
-        </PackageReference>
+        <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+        <PackageReference Include="NunitXml.TestLogger" Version="3.1.15" />
-        <PackageReference Include="NUnit" Version="3.13.3" />
-        <PackageReference Include="NUnit3TestAdapter" Version="4.4.2" />
-        <PackageReference Include="NunitXml.TestLogger" Version="3.0.131" />
     </ItemGroup>
 
     <ItemGroup>

ThirdParty/FNA

@@ -0,0 +1 @@
+Subproject commit 354e2161b759fa052b25e94209d6ea463aaf098f

ThirdParty/FontStashSharp

@@ -0,0 +1 @@
+Subproject commit 2d40e9f0f681595dbd4341a3e5a64ed6e31f9556

build.cake

@@ -2,7 +2,7 @@
 #tool dotnet:?package=docfx&version=2.70.3
 
 // this is the upcoming version, for prereleases
-var version = Argument("version", "6.2.0");
+var version = Argument("version", "6.3.0");
 var target = Argument("target", "Default");
 var branch = Argument("branch", "main");
 var config = Argument("configuration", "Release");
@@ -14,8 +14,8 @@ Task("Prepare").Does(() => {
     DotNetRestore("MLEM.FNA.sln");
 
     if (branch != "release") {
-        var buildNum = EnvironmentVariable("CI_PIPELINE_NUMBER");
+        var buildNum = EnvironmentVariable("GITHUB_RUN_NUMBER");
-        if (buildNum != null)
+        if (!string.IsNullOrEmpty(buildNum))
             version += "-ci." + buildNum;
     }
 
@@ -25,7 +25,9 @@ Task("Prepare").Does(() => {
 Task("Build").IsDependentOn("Prepare").Does(() =>{
     var settings = new DotNetBuildSettings {
         Configuration = config,
-        ArgumentCustomization = args => args.Append($"/p:Version={version}")
+        ArgumentCustomization = args => args.Append($"/p:Version={version}"),
+        // .net 8 has an issue that causes simultaneous tool restores during build to fail
+        MSBuildSettings = new DotNetMSBuildSettings { MaxCpuCount = 1 }
     };
     DotNetBuild("MLEM.sln", settings);
     DotNetBuild("MLEM.FNA.sln", settings);
@@ -34,7 +36,8 @@ Task("Build").IsDependentOn("Prepare").Does(() =>{
 Task("Test").IsDependentOn("Build").Does(() => {
     var settings = new DotNetTestSettings {
         Configuration = config,
-        Collectors = {"XPlat Code Coverage"}
+        Collectors = {"XPlat Code Coverage"},
+        Loggers = {"console;verbosity=normal"}
     };
     DotNetTest("MLEM.sln", settings);
     DotNetTest("MLEM.FNA.sln", settings);
@@ -49,7 +52,7 @@ Task("Pack").IsDependentOn("Test").Does(() => {
     DotNetPack("MLEM.FNA.sln", settings);
 });
 
-Task("Push").WithCriteria(branch == "main" || branch == "release").IsDependentOn("Pack").Does(() => {
+Task("Push").WithCriteria(branch == "main" || branch == "release", "Not on main or release branch").IsDependentOn("Pack").Does(() => {
     DotNetNuGetPushSettings settings;
     if (branch == "release") {
         settings = new DotNetNuGetPushSettings {