Implemented animated simplex noise

src/Artemis.Core/Models/Profile/Layer.cs

@@ -68,33 +68,35 @@ namespace Artemis.Core.Models.Profile
                 return;
 
             canvas.Save();
-
+            lock (_renderBitmap)
-            foreach (var layerElement in LayerElements)
-                layerElement.RenderPreProcess(surface, canvas);
-
-            _renderCanvas.Clear();
-            foreach (var layerElement in LayerElements)
-                layerElement.Render(surface, _renderCanvas);
-
-            var baseShader = SKShader.CreateBitmap(_renderBitmap, SKShaderTileMode.Repeat, SKShaderTileMode.Repeat, SKMatrix.MakeTranslation(RenderRectangle.Left, RenderRectangle.Top));
-            foreach (var layerElement in LayerElements)
             {
-                var newBaseShader = layerElement.RenderPostProcess(surface, _renderBitmap, baseShader);
+                foreach (var layerElement in LayerElements)
-                if (newBaseShader == null)
+                    layerElement.RenderPreProcess(surface, canvas);
-                    continue;
 
-                // Dispose the old base shader if the layer element provided a new one
+                _renderCanvas.Clear();
-                if (!ReferenceEquals(baseShader, newBaseShader))
+                foreach (var layerElement in LayerElements)
-                    baseShader.Dispose();
+                    layerElement.Render(surface, _renderCanvas);
 
-                baseShader = newBaseShader;
+                var baseShader = SKShader.CreateBitmap(_renderBitmap, SKShaderTileMode.Repeat, SKShaderTileMode.Repeat, SKMatrix.MakeTranslation(RenderRectangle.Left, RenderRectangle.Top));
+                foreach (var layerElement in LayerElements)
+                {
+                    var newBaseShader = layerElement.RenderPostProcess(surface, _renderBitmap, baseShader);
+                    if (newBaseShader == null)
+                        continue;
+
+                    // Dispose the old base shader if the layer element provided a new one
+                    if (!ReferenceEquals(baseShader, newBaseShader))
+                        baseShader.Dispose();
+
+                    baseShader = newBaseShader;
+                }
+
+                canvas.ClipPath(RenderPath);
+                canvas.DrawRect(RenderRectangle, new SKPaint {Shader = baseShader, FilterQuality = SKFilterQuality.Low});
+                baseShader.Dispose();
+
+                canvas.Restore();
             }
-
-            canvas.ClipPath(RenderPath);
-            canvas.DrawRect(RenderRectangle, new SKPaint {Shader = baseShader, FilterQuality = SKFilterQuality.Low});
-            baseShader.Dispose();
-            
-            canvas.Restore();
         }
 
         internal override void ApplyToEntity()
@@ -206,12 +208,24 @@ namespace Artemis.Core.Models.Profile
 
             RenderPath = path;
 
-            var oldBitmap = _renderBitmap;
+            if (_renderBitmap != null)
-            var oldCanvas = _renderCanvas;
+            {
-            _renderBitmap = new SKBitmap(new SKImageInfo((int) RenderRectangle.Width, (int) RenderRectangle.Height));
+                lock (_renderBitmap)
-            _renderCanvas = new SKCanvas(_renderBitmap);
+                {
-            oldBitmap?.Dispose();
+                    var oldBitmap = _renderBitmap;
-            oldCanvas?.Dispose();
+                    var oldCanvas = _renderCanvas;
+                    _renderBitmap = new SKBitmap(new SKImageInfo((int) RenderRectangle.Width, (int) RenderRectangle.Height));
+                    _renderCanvas = new SKCanvas(_renderBitmap);
+                    oldBitmap?.Dispose();
+                    oldCanvas?.Dispose();
+                }
+            }
+            else
+            {
+                _renderBitmap = new SKBitmap(new SKImageInfo((int) RenderRectangle.Width, (int) RenderRectangle.Height));
+                _renderCanvas = new SKCanvas(_renderBitmap);
+            }
+
             OnRenderPropertiesUpdated();
         }
 

src/Artemis.Plugins.LayerElements.Noise/Artemis.Plugins.LayerElements.Noise.csproj

@@ -12,6 +12,7 @@
     <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
   </PropertyGroup>
@@ -23,6 +24,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <LangVersion>7</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -33,10 +35,24 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="MaterialDesignColors, Version=1.2.0.325, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\MaterialDesignColors.1.2.0\lib\net45\MaterialDesignColors.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="MaterialDesignThemes.Wpf">
+      <HintPath>..\packages\MaterialDesignThemes.2.6.0\lib\net45\MaterialDesignThemes.Wpf.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="RGB.NET.Core, Version=0.1.25.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\RGB.NET\bin\net45\RGB.NET.Core.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
     <Reference Include="SkiaSharp, Version=1.68.0.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756, processorArchitecture=MSIL">
       <HintPath>..\packages\SkiaSharp.1.68.1\lib\net45\SkiaSharp.dll</HintPath>
+      <Private>False</Private>
     </Reference>
     <Reference Include="Stylet, Version=1.3.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\Stylet.1.3.0\lib\net45\Stylet.dll</HintPath>
@@ -56,6 +72,12 @@
     <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.5.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\System.Runtime.CompilerServices.Unsafe.4.6.0\lib\netstandard2.0\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
     </Reference>
+    <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xaml" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -65,17 +87,19 @@
     <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="NoiseLayerElement.cs" />
-    <Compile Include="NoiseLayerElementProvider.cs" />
     <Compile Include="NoiseLayerElementSettings.cs" />
     <Compile Include="NoiseLayerElementViewModel.cs" />
+    <Compile Include="NoiseLayerElement.cs" />
+    <Compile Include="NoiseLayerElementProvider.cs" />
+    <Compile Include="OpenSimplexNoise.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
-    <Page Include="NoiseLayerElementView.xaml">
+    <ProjectReference Include="..\Artemis.Core\Artemis.Core.csproj">
-      <Generator>MSBuild:Compile</Generator>
+      <Project>{9b811f9b-86b9-4771-87af-72bae7078a36}</Project>
-      <SubType>Designer</SubType>
+      <Name>Artemis.Core</Name>
-    </Page>
+      <Private>False</Private>
+    </ProjectReference>
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
@@ -85,12 +109,17 @@
     </None>
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Artemis.Core\Artemis.Core.csproj">
+    <Page Include="NoiseLayerElementView.xaml">
-      <Project>{9b811f9b-86b9-4771-87af-72bae7078a36}</Project>
+      <SubType>Designer</SubType>
-      <Name>Artemis.Core</Name>
+      <Generator>MSBuild:Compile</Generator>
-    </ProjectReference>
+    </Page>
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <PropertyGroup>
+    <PostBuildEvent>echo Copying plugin to Artemis.UI output directory
+XCOPY "$(TargetDir.TrimEnd('\'))" "$(SolutionDir)\Artemis.UI\$(OutDir)Plugins\$(ProjectName)" /s /q /i /y</PostBuildEvent>
+  </PropertyGroup>
   <Import Project="..\packages\SkiaSharp.1.68.1\build\net45\SkiaSharp.targets" Condition="Exists('..\packages\SkiaSharp.1.68.1\build\net45\SkiaSharp.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>

src/Artemis.Plugins.LayerElements.Noise/NoiseLayerElement.cs

@@ -1,6 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
 using Artemis.Core.Models.Profile;
 using Artemis.Core.Models.Surface;
 using Artemis.Core.Plugins.LayerElement;
@@ -10,42 +8,26 @@ namespace Artemis.Plugins.LayerElements.Noise
 {
     public class NoiseLayerElement : LayerElement
     {
-        private SKShader _shader;
+        private readonly OpenSimplexNoise _noise;
-        private List<SKColor> _testColors;
+        private float _z;
-        private SKPaint _paint;
 
         public NoiseLayerElement(Layer layer, Guid guid, NoiseLayerElementSettings settings, LayerElementDescriptor descriptor) : base(layer, guid, settings, descriptor)
         {
             Settings = settings;
 
-            _testColors = new List<SKColor>();
+            _z = 0.001f;
-            for (var i = 0; i < 9; i++)
+            _noise = new OpenSimplexNoise(Guid.GetHashCode());
-            {
-                if (i != 8)
-                    _testColors.Add(SKColor.FromHsv(i * 32, 100, 100));
-                else
-                    _testColors.Add(SKColor.FromHsv(0, 100, 100));
-            }
-
-            CreateShader();
-            Layer.RenderPropertiesUpdated += (sender, args) => CreateShader();
-            Settings.PropertyChanged += (sender, args) => CreateShader();
-        }
-
-        private void CreateShader()
-        {
-            var shader = SKShader.CreatePerlinNoiseFractalNoise(1, 1, 1, 1);
-
-            var oldShader = _shader;
-            var oldPaint = _paint;
-            _shader = shader;
-            _paint = new SKPaint {Shader = _shader, FilterQuality = SKFilterQuality.Low};
-            oldShader?.Dispose();
-            oldPaint?.Dispose();
         }
 
         public new NoiseLayerElementSettings Settings { get; }
 
+
+        public override void Update(double deltaTime)
+        {
+            _z += Settings.AnimationSpeed;
+            base.Update(deltaTime);
+        }
+
         public override LayerElementViewModel GetViewModel()
         {
             return new NoiseLayerElementViewModel(this);
@@ -53,7 +35,21 @@ namespace Artemis.Plugins.LayerElements.Noise
 
         public override void Render(ArtemisSurface surface, SKCanvas canvas)
         {
-            canvas.DrawRect(Layer.AbsoluteRenderRectangle, _paint);
+            var width = Layer.AbsoluteRenderRectangle.Width / 2;
+            var height = Layer.AbsoluteRenderRectangle.Height / 2;
+            using (var bitmap = new SKBitmap(new SKImageInfo((int) Layer.AbsoluteRenderRectangle.Width, (int) Layer.AbsoluteRenderRectangle.Height)))
+            {
+                for (var x = 0; x < width; x++)
+                {
+                    for (var y = 0; y < height; y++)
+                    {
+                        var v = _noise.Evaluate(Settings.XScale * x / width, Settings.YScale * y / height, _z);
+                        bitmap.SetPixel(x, y, new SKColor(255, 255, 255, (byte) ((v + 1) * 127)));
+                    }
+                }
+
+                canvas.DrawBitmap(bitmap, SKRect.Create(0, 0, width, height), Layer.AbsoluteRenderRectangle, new SKPaint {BlendMode = Settings.BlendMode});
+            }
         }
     }
 }

src/Artemis.Plugins.LayerElements.Noise/NoiseLayerElementSettings.cs

@@ -1,46 +1,46 @@
-using System.Collections.Generic;
+using Artemis.Core.Plugins.LayerElement;
-using System.ComponentModel;
-using Artemis.Core.Plugins.LayerElement;
 using SkiaSharp;
 
 namespace Artemis.Plugins.LayerElements.Noise
 {
     public class NoiseLayerElementSettings : LayerElementSettings
     {
-        private BrushType _brushType;
+        private SKBlendMode _blendMode;
-        private List<SKColor> _colors;
+        private float _xScale;
+        private float _yScale;
+        private float _animationSpeed;
+
 
         public NoiseLayerElementSettings()
         {
-            BrushType = BrushType.Solid;
+            BlendMode = SKBlendMode.Color;
-            Colors = new List<SKColor>();
+            XScale = 0.5f;
+            YScale = 0.5f;
+            AnimationSpeed = 0.1f;
         }
 
-        public BrushType BrushType
+        public float XScale
         {
-            get => _brushType;
+            get => _xScale;
-            set => SetAndNotify(ref _brushType, value);
+            set => SetAndNotify(ref _xScale, value);
         }
 
-        public List<SKColor> Colors
+        public float YScale
         {
-            get => _colors;
+            get => _yScale;
-            set => SetAndNotify(ref _colors, value);
+            set => SetAndNotify(ref _yScale, value);
         }
-    }
 
-    public enum BrushType
+        public float AnimationSpeed
-    {
+        {
-        [Description("Solid")]
+            get => _animationSpeed;
-        Solid,
+            set => SetAndNotify(ref _animationSpeed, value);
+        }
 
-        [Description("Linear Gradient")]
+        public SKBlendMode BlendMode
-        LinearGradient,
+        {
-
+            get => _blendMode;
-        [Description("Radial Gradient")]
+            set => SetAndNotify(ref _blendMode, value);
-        RadialGradient,
+        }
-
-        [Description("Sweep Gradient")]
-        SweepGradient
     }
 }

src/Artemis.Plugins.LayerElements.Noise/NoiseLayerElementView.xaml

@@ -1,12 +1,13 @@
-<UserControl x:Class="Artemis.Plugins.LayerElements.Noise.BrushLayerElementView"
+<UserControl x:Class="Artemis.Plugins.LayerElements.Noise.NoiseLayerElementView"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-             xmlns:brushLayer="clr-namespace:Artemis.Plugins.LayerElements.Brush"
+             xmlns:noiseLayer="clr-namespace:Artemis.Plugins.LayerElements.Noise"
              mc:Ignorable="d"
-             d:DesignHeight="450" d:DesignWidth="800">
+             d:DesignHeight="450" d:DesignWidth="800"
+             d:DataContext="{d:DesignInstance {x:Type noiseLayer:NoiseLayerElementViewModel}}">
     <UserControl.Resources>
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>
@@ -28,8 +29,30 @@
             <RowDefinition Height="Auto" />
         </Grid.RowDefinitions>
 
-     
+        <Grid Grid.Row="1">
-        <!-- Sample 1 -->
+            <Grid.RowDefinitions>
+                <RowDefinition />
+                <RowDefinition />
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+            </Grid.ColumnDefinitions>
+            <StackPanel Grid.Column="0">
+                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">Blend mode</TextBlock>
+                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}" Foreground="{DynamicResource MaterialDesignCheckBoxDisabled}">Affects how the noise is rendered on the rest of the layer</TextBlock>
+            </StackPanel>
+            <StackPanel Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
+                <ComboBox HorizontalAlignment="Left"
+                          ItemsSource="{Binding Path=BlendModes}"
+                          SelectedValuePath="Value"
+                          DisplayMemberPath="Description"
+                          Width="100"
+                          SelectedValue="{Binding Path=LayerElement.Settings.BlendMode}" />
+            </StackPanel>
+            <Separator Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Style="{StaticResource MaterialDesignSeparator}" />
+        </Grid>
+
         <Grid Grid.Row="2">
             <Grid.RowDefinitions>
                 <RowDefinition />
@@ -40,11 +63,10 @@
                 <ColumnDefinition Width="Auto" />
             </Grid.ColumnDefinitions>
             <StackPanel Grid.Column="0">
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">Setting title</TextBlock>
+                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">X Scale</TextBlock>
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}" Foreground="{DynamicResource MaterialDesignCheckBoxDisabled}">Setting subtitle</TextBlock>
             </StackPanel>
             <StackPanel Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
-                <ToggleButton Style="{StaticResource MaterialDesignSwitchToggleButton}" ToolTip="Default ToggleButton Style" />
+                <Slider Orientation="Horizontal" TickFrequency="0.5" Minimum="0.5" Maximum="20" Value="{Binding LayerElement.Settings.XScale}" Width="100"/>
             </StackPanel>
             <Separator Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Style="{StaticResource MaterialDesignSeparator}" />
         </Grid>
@@ -60,11 +82,10 @@
                 <ColumnDefinition Width="Auto" />
             </Grid.ColumnDefinitions>
             <StackPanel Grid.Column="0">
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">Setting title</TextBlock>
+                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">Y Scale</TextBlock>
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}" Foreground="{DynamicResource MaterialDesignCheckBoxDisabled}">Setting subtitle</TextBlock>
             </StackPanel>
             <StackPanel Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
-                <ToggleButton Style="{StaticResource MaterialDesignSwitchToggleButton}" ToolTip="Default ToggleButton Style" />
+                <Slider Orientation="Horizontal" TickFrequency="0.5" Minimum="0.5" Maximum="20" Value="{Binding LayerElement.Settings.YScale}" Width="100"/>
             </StackPanel>
             <Separator Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Style="{StaticResource MaterialDesignSeparator}" />
         </Grid>
@@ -80,31 +101,10 @@
                 <ColumnDefinition Width="Auto" />
             </Grid.ColumnDefinitions>
             <StackPanel Grid.Column="0">
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">Setting title</TextBlock>
+                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">Animation speed</TextBlock>
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}" Foreground="{DynamicResource MaterialDesignCheckBoxDisabled}">Setting subtitle</TextBlock>
             </StackPanel>
             <StackPanel Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
-                <ToggleButton Style="{StaticResource MaterialDesignSwitchToggleButton}" ToolTip="Default ToggleButton Style" />
+                <Slider Orientation="Horizontal" TickFrequency="0.05" Minimum="0.05" Maximum="1" Value="{Binding LayerElement.Settings.YScale}" Width="100"/>
-            </StackPanel>
-            <Separator Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Style="{StaticResource MaterialDesignSeparator}" />
-        </Grid>
-
-        <!-- Setting 2 -->
-        <Grid Grid.Row="5">
-            <Grid.RowDefinitions>
-                <RowDefinition />
-                <RowDefinition />
-            </Grid.RowDefinitions>
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="*" />
-                <ColumnDefinition Width="Auto" />
-            </Grid.ColumnDefinitions>
-            <StackPanel Grid.Column="0">
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}">Setting title</TextBlock>
-                <TextBlock Style="{StaticResource MaterialDesignBody1TextBlock}" Foreground="{DynamicResource MaterialDesignCheckBoxDisabled}">Setting subtitle</TextBlock>
-            </StackPanel>
-            <StackPanel Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
-                <ToggleButton Style="{StaticResource MaterialDesignSwitchToggleButton}" ToolTip="Default ToggleButton Style" />
             </StackPanel>
             <Separator Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Style="{StaticResource MaterialDesignSeparator}" />
         </Grid>

src/Artemis.Plugins.LayerElements.Noise/NoiseLayerElementViewModel.cs

@@ -1,4 +1,7 @@
-using Artemis.Core.Plugins.LayerElement;
+using System.Collections.Generic;
+using Artemis.Core.Plugins.LayerElement;
+using Artemis.Core.Utilities;
+using SkiaSharp;
 
 namespace Artemis.Plugins.LayerElements.Noise
 {
@@ -10,5 +13,6 @@ namespace Artemis.Plugins.LayerElements.Noise
         }
 
         public new NoiseLayerElement LayerElement { get; }
+        public IEnumerable<ValueDescription> BlendModes => EnumUtilities.GetAllValuesAndDescriptions(typeof(SKBlendMode));
     }
 }

src/Artemis.Plugins.LayerElements.Noise/OpenSimplexNoise.cs

@@ -0,0 +1,448 @@
+using System;
+using System.Runtime.CompilerServices;
+
+namespace Artemis.Plugins.LayerElements.Noise
+{
+    public class OpenSimplexNoise
+    {
+        private const double STRETCH_2D = -0.211324865405187;    //(1/Math.sqrt(2+1)-1)/2;
+        private const double STRETCH_3D = -1.0 / 6.0;            //(1/Math.sqrt(3+1)-1)/3;
+        private const double STRETCH_4D = -0.138196601125011;    //(1/Math.sqrt(4+1)-1)/4;
+        private const double SQUISH_2D = 0.366025403784439;      //(Math.sqrt(2+1)-1)/2;
+        private const double SQUISH_3D = 1.0 / 3.0;              //(Math.sqrt(3+1)-1)/3;
+        private const double SQUISH_4D = 0.309016994374947;      //(Math.sqrt(4+1)-1)/4;
+        private const double NORM_2D = 1.0 / 47.0;
+        private const double NORM_3D = 1.0 / 103.0;
+        private const double NORM_4D = 1.0 / 30.0;
+
+        private byte[] perm;
+        private byte[] perm2D;
+        private byte[] perm3D;
+        private byte[] perm4D;
+
+        private static double[] gradients2D = new double[]
+        {
+             5,  2,    2,  5,
+            -5,  2,   -2,  5,
+             5, -2,    2, -5,
+            -5, -2,   -2, -5,
+        };
+
+        private static double[] gradients3D =
+        {
+            -11,  4,  4,     -4,  11,  4,    -4,  4,  11,
+             11,  4,  4,      4,  11,  4,     4,  4,  11,
+            -11, -4,  4,     -4, -11,  4,    -4, -4,  11,
+             11, -4,  4,      4, -11,  4,     4, -4,  11,
+            -11,  4, -4,     -4,  11, -4,    -4,  4, -11,
+             11,  4, -4,      4,  11, -4,     4,  4, -11,
+            -11, -4, -4,     -4, -11, -4,    -4, -4, -11,
+             11, -4, -4,      4, -11, -4,     4, -4, -11,
+        };
+
+        private static double[] gradients4D =
+        {
+             3,  1,  1,  1,      1,  3,  1,  1,      1,  1,  3,  1,      1,  1,  1,  3,
+            -3,  1,  1,  1,     -1,  3,  1,  1,     -1,  1,  3,  1,     -1,  1,  1,  3,
+             3, -1,  1,  1,      1, -3,  1,  1,      1, -1,  3,  1,      1, -1,  1,  3,
+            -3, -1,  1,  1,     -1, -3,  1,  1,     -1, -1,  3,  1,     -1, -1,  1,  3,
+             3,  1, -1,  1,      1,  3, -1,  1,      1,  1, -3,  1,      1,  1, -1,  3,
+            -3,  1, -1,  1,     -1,  3, -1,  1,     -1,  1, -3,  1,     -1,  1, -1,  3,
+             3, -1, -1,  1,      1, -3, -1,  1,      1, -1, -3,  1,      1, -1, -1,  3,
+            -3, -1, -1,  1,     -1, -3, -1,  1,     -1, -1, -3,  1,     -1, -1, -1,  3,
+             3,  1,  1, -1,      1,  3,  1, -1,      1,  1,  3, -1,      1,  1,  1, -3,
+            -3,  1,  1, -1,     -1,  3,  1, -1,     -1,  1,  3, -1,     -1,  1,  1, -3,
+             3, -1,  1, -1,      1, -3,  1, -1,      1, -1,  3, -1,      1, -1,  1, -3,
+            -3, -1,  1, -1,     -1, -3,  1, -1,     -1, -1,  3, -1,     -1, -1,  1, -3,
+             3,  1, -1, -1,      1,  3, -1, -1,      1,  1, -3, -1,      1,  1, -1, -3,
+            -3,  1, -1, -1,     -1,  3, -1, -1,     -1,  1, -3, -1,     -1,  1, -1, -3,
+             3, -1, -1, -1,      1, -3, -1, -1,      1, -1, -3, -1,      1, -1, -1, -3,
+            -3, -1, -1, -1,     -1, -3, -1, -1,     -1, -1, -3, -1,     -1, -1, -1, -3,
+        };
+
+        private static Contribution2[] lookup2D;
+        private static Contribution3[] lookup3D;
+        private static Contribution4[] lookup4D;
+
+        static OpenSimplexNoise()
+        {
+            var base2D = new int[][]
+            {
+                new int[] { 1, 1, 0, 1, 0, 1, 0, 0, 0 },
+                new int[] { 1, 1, 0, 1, 0, 1, 2, 1, 1 }
+            };
+            var p2D = new int[] { 0, 0, 1, -1, 0, 0, -1, 1, 0, 2, 1, 1, 1, 2, 2, 0, 1, 2, 0, 2, 1, 0, 0, 0 };
+            var lookupPairs2D = new int[] { 0, 1, 1, 0, 4, 1, 17, 0, 20, 2, 21, 2, 22, 5, 23, 5, 26, 4, 39, 3, 42, 4, 43, 3 };
+
+            var contributions2D = new Contribution2[p2D.Length / 4];
+            for (int i = 0; i < p2D.Length; i += 4)
+            {
+                var baseSet = base2D[p2D[i]];
+                Contribution2 previous = null, current = null;
+                for (int k = 0; k < baseSet.Length; k += 3)
+                {
+                    current = new Contribution2(baseSet[k], baseSet[k + 1], baseSet[k + 2]);
+                    if (previous == null)
+                    {
+                        contributions2D[i / 4] = current;
+                    }
+                    else
+                    {
+                        previous.Next = current;
+                    }
+                    previous = current;
+                }
+                current.Next = new Contribution2(p2D[i + 1], p2D[i + 2], p2D[i + 3]);
+            }
+
+            lookup2D = new Contribution2[64];
+            for (var i = 0; i < lookupPairs2D.Length; i += 2)
+            {
+                lookup2D[lookupPairs2D[i]] = contributions2D[lookupPairs2D[i + 1]];
+            }
+
+
+            var base3D = new int[][]
+            {
+                new int[] { 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1 },
+                new int[] { 2, 1, 1, 0, 2, 1, 0, 1, 2, 0, 1, 1, 3, 1, 1, 1 },
+                new int[] { 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 2, 1, 1, 0, 2, 1, 0, 1, 2, 0, 1, 1 }
+            };
+            var p3D = new int[] { 0, 0, 1, -1, 0, 0, 1, 0, -1, 0, 0, -1, 1, 0, 0, 0, 1, -1, 0, 0, -1, 0, 1, 0, 0, -1, 1, 0, 2, 1, 1, 0, 1, 1, 1, -1, 0, 2, 1, 0, 1, 1, 1, -1, 1, 0, 2, 0, 1, 1, 1, -1, 1, 1, 1, 3, 2, 1, 0, 3, 1, 2, 0, 1, 3, 2, 0, 1, 3, 1, 0, 2, 1, 3, 0, 2, 1, 3, 0, 1, 2, 1, 1, 1, 0, 0, 2, 2, 0, 0, 1, 1, 0, 1, 0, 2, 0, 2, 0, 1, 1, 0, 0, 1, 2, 0, 0, 2, 2, 0, 0, 0, 0, 1, 1, -1, 1, 2, 0, 0, 0, 0, 1, -1, 1, 1, 2, 0, 0, 0, 0, 1, 1, 1, -1, 2, 3, 1, 1, 1, 2, 0, 0, 2, 2, 3, 1, 1, 1, 2, 2, 0, 0, 2, 3, 1, 1, 1, 2, 0, 2, 0, 2, 1, 1, -1, 1, 2, 0, 0, 2, 2, 1, 1, -1, 1, 2, 2, 0, 0, 2, 1, -1, 1, 1, 2, 0, 0, 2, 2, 1, -1, 1, 1, 2, 0, 2, 0, 2, 1, 1, 1, -1, 2, 2, 0, 0, 2, 1, 1, 1, -1, 2, 0, 2, 0 };
+            var lookupPairs3D = new int[] { 0, 2, 1, 1, 2, 2, 5, 1, 6, 0, 7, 0, 32, 2, 34, 2, 129, 1, 133, 1, 160, 5, 161, 5, 518, 0, 519, 0, 546, 4, 550, 4, 645, 3, 647, 3, 672, 5, 673, 5, 674, 4, 677, 3, 678, 4, 679, 3, 680, 13, 681, 13, 682, 12, 685, 14, 686, 12, 687, 14, 712, 20, 714, 18, 809, 21, 813, 23, 840, 20, 841, 21, 1198, 19, 1199, 22, 1226, 18, 1230, 19, 1325, 23, 1327, 22, 1352, 15, 1353, 17, 1354, 15, 1357, 17, 1358, 16, 1359, 16, 1360, 11, 1361, 10, 1362, 11, 1365, 10, 1366, 9, 1367, 9, 1392, 11, 1394, 11, 1489, 10, 1493, 10, 1520, 8, 1521, 8, 1878, 9, 1879, 9, 1906, 7, 1910, 7, 2005, 6, 2007, 6, 2032, 8, 2033, 8, 2034, 7, 2037, 6, 2038, 7, 2039, 6 };
+
+            var contributions3D = new Contribution3[p3D.Length / 9];
+            for (int i = 0; i < p3D.Length; i += 9)
+            {
+                var baseSet = base3D[p3D[i]];
+                Contribution3 previous = null, current = null;
+                for (int k = 0; k < baseSet.Length; k += 4)
+                {
+                    current = new Contribution3(baseSet[k], baseSet[k + 1], baseSet[k + 2], baseSet[k + 3]);
+                    if (previous == null)
+                    {
+                        contributions3D[i / 9] = current;
+                    }
+                    else
+                    {
+                        previous.Next = current;
+                    }
+                    previous = current;
+                }
+                current.Next = new Contribution3(p3D[i + 1], p3D[i + 2], p3D[i + 3], p3D[i + 4]);
+                current.Next.Next = new Contribution3(p3D[i + 5], p3D[i + 6], p3D[i + 7], p3D[i + 8]);
+            }
+
+            lookup3D = new Contribution3[2048];
+            for (var i = 0; i < lookupPairs3D.Length; i += 2)
+            {
+                lookup3D[lookupPairs3D[i]] = contributions3D[lookupPairs3D[i + 1]];
+            }
+
+            var base4D = new int[][]
+            {
+                new int[] { 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1 },
+                new int[] { 3, 1, 1, 1, 0, 3, 1, 1, 0, 1, 3, 1, 0, 1, 1, 3, 0, 1, 1, 1, 4, 1, 1, 1, 1 },
+                new int[] { 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 2, 1, 1, 0, 0, 2, 1, 0, 1, 0, 2, 1, 0, 0, 1, 2, 0, 1, 1, 0, 2, 0, 1, 0, 1, 2, 0, 0, 1, 1 },
+                new int[] { 3, 1, 1, 1, 0, 3, 1, 1, 0, 1, 3, 1, 0, 1, 1, 3, 0, 1, 1, 1, 2, 1, 1, 0, 0, 2, 1, 0, 1, 0, 2, 1, 0, 0, 1, 2, 0, 1, 1, 0, 2, 0, 1, 0, 1, 2, 0, 0, 1, 1 }
+            };
+            var p4D = new int[] { 0, 0, 1, -1, 0, 0, 0, 1, 0, -1, 0, 0, 1, 0, 0, -1, 0, 0, -1, 1, 0, 0, 0, 0, 1, -1, 0, 0, 0, 1, 0, -1, 0, 0, -1, 0, 1, 0, 0, 0, -1, 1, 0, 0, 0, 0, 1, -1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 0, 1, 0, 0, 0, -1, 1, 0, 2, 1, 1, 0, 0, 1, 1, 1, -1, 0, 1, 1, 1, 0, -1, 0, 2, 1, 0, 1, 0, 1, 1, -1, 1, 0, 1, 1, 0, 1, -1, 0, 2, 0, 1, 1, 0, 1, -1, 1, 1, 0, 1, 0, 1, 1, -1, 0, 2, 1, 0, 0, 1, 1, 1, -1, 0, 1, 1, 1, 0, -1, 1, 0, 2, 0, 1, 0, 1, 1, -1, 1, 0, 1, 1, 0, 1, -1, 1, 0, 2, 0, 0, 1, 1, 1, -1, 0, 1, 1, 1, 0, -1, 1, 1, 1, 4, 2, 1, 1, 0, 4, 1, 2, 1, 0, 4, 1, 1, 2, 0, 1, 4, 2, 1, 0, 1, 4, 1, 2, 0, 1, 4, 1, 1, 0, 2, 1, 4, 2, 0, 1, 1, 4, 1, 0, 2, 1, 4, 1, 0, 1, 2, 1, 4, 0, 2, 1, 1, 4, 0, 1, 2, 1, 4, 0, 1, 1, 2, 1, 2, 1, 1, 0, 0, 3, 2, 1, 0, 0, 3, 1, 2, 0, 0, 1, 2, 1, 0, 1, 0, 3, 2, 0, 1, 0, 3, 1, 0, 2, 0, 1, 2, 0, 1, 1, 0, 3, 0, 2, 1, 0, 3, 0, 1, 2, 0, 1, 2, 1, 0, 0, 1, 3, 2, 0, 0, 1, 3, 1, 0, 0, 2, 1, 2, 0, 1, 0, 1, 3, 0, 2, 0, 1, 3, 0, 1, 0, 2, 1, 2, 0, 0, 1, 1, 3, 0, 0, 2, 1, 3, 0, 0, 1, 2, 2, 3, 1, 1, 1, 0, 2, 1, 1, 1, -1, 2, 2, 0, 0, 0, 2, 3, 1, 1, 0, 1, 2, 1, 1, -1, 1, 2, 2, 0, 0, 0, 2, 3, 1, 0, 1, 1, 2, 1, -1, 1, 1, 2, 2, 0, 0, 0, 2, 3, 1, 1, 1, 0, 2, 1, 1, 1, -1, 2, 0, 2, 0, 0, 2, 3, 1, 1, 0, 1, 2, 1, 1, -1, 1, 2, 0, 2, 0, 0, 2, 3, 0, 1, 1, 1, 2, -1, 1, 1, 1, 2, 0, 2, 0, 0, 2, 3, 1, 1, 1, 0, 2, 1, 1, 1, -1, 2, 0, 0, 2, 0, 2, 3, 1, 0, 1, 1, 2, 1, -1, 1, 1, 2, 0, 0, 2, 0, 2, 3, 0, 1, 1, 1, 2, -1, 1, 1, 1, 2, 0, 0, 2, 0, 2, 3, 1, 1, 0, 1, 2, 1, 1, -1, 1, 2, 0, 0, 0, 2, 2, 3, 1, 0, 1, 1, 2, 1, -1, 1, 1, 2, 0, 0, 0, 2, 2, 3, 0, 1, 1, 1, 2, -1, 1, 1, 1, 2, 0, 0, 0, 2, 2, 1, 1, 1, -1, 0, 1, 1, 1, 0, -1, 0, 0, 0, 0, 0, 2, 1, 1, -1, 1, 0, 1, 1, 0, 1, -1, 0, 0, 0, 0, 0, 2, 1, -1, 1, 1, 0, 1, 0, 1, 1, -1, 0, 0, 0, 0, 0, 2, 1, 1, -1, 0, 1, 1, 1, 0, -1, 1, 0, 0, 0, 0, 0, 2, 1, -1, 1, 0, 1, 1, 0, 1, -1, 1, 0, 0, 0, 0, 0, 2, 1, -1, 0, 1, 1, 1, 0, -1, 1, 1, 0, 0, 0, 0, 0, 2, 1, 1, 1, -1, 0, 1, 1, 1, 0, -1, 2, 2, 0, 0, 0, 2, 1, 1, -1, 1, 0, 1, 1, 0, 1, -1, 2, 2, 0, 0, 0, 2, 1, 1, -1, 0, 1, 1, 1, 0, -1, 1, 2, 2, 0, 0, 0, 2, 1, 1, 1, -1, 0, 1, 1, 1, 0, -1, 2, 0, 2, 0, 0, 2, 1, -1, 1, 1, 0, 1, 0, 1, 1, -1, 2, 0, 2, 0, 0, 2, 1, -1, 1, 0, 1, 1, 0, 1, -1, 1, 2, 0, 2, 0, 0, 2, 1, 1, -1, 1, 0, 1, 1, 0, 1, -1, 2, 0, 0, 2, 0, 2, 1, -1, 1, 1, 0, 1, 0, 1, 1, -1, 2, 0, 0, 2, 0, 2, 1, -1, 0, 1, 1, 1, 0, -1, 1, 1, 2, 0, 0, 2, 0, 2, 1, 1, -1, 0, 1, 1, 1, 0, -1, 1, 2, 0, 0, 0, 2, 2, 1, -1, 1, 0, 1, 1, 0, 1, -1, 1, 2, 0, 0, 0, 2, 2, 1, -1, 0, 1, 1, 1, 0, -1, 1, 1, 2, 0, 0, 0, 2, 3, 1, 1, 0, 0, 0, 2, 2, 0, 0, 0, 2, 1, 1, 1, -1, 3, 1, 0, 1, 0, 0, 2, 0, 2, 0, 0, 2, 1, 1, 1, -1, 3, 1, 0, 0, 1, 0, 2, 0, 0, 2, 0, 2, 1, 1, 1, -1, 3, 1, 1, 0, 0, 0, 2, 2, 0, 0, 0, 2, 1, 1, -1, 1, 3, 1, 0, 1, 0, 0, 2, 0, 2, 0, 0, 2, 1, 1, -1, 1, 3, 1, 0, 0, 0, 1, 2, 0, 0, 0, 2, 2, 1, 1, -1, 1, 3, 1, 1, 0, 0, 0, 2, 2, 0, 0, 0, 2, 1, -1, 1, 1, 3, 1, 0, 0, 1, 0, 2, 0, 0, 2, 0, 2, 1, -1, 1, 1, 3, 1, 0, 0, 0, 1, 2, 0, 0, 0, 2, 2, 1, -1, 1, 1, 3, 1, 0, 1, 0, 0, 2, 0, 2, 0, 0, 2, -1, 1, 1, 1, 3, 1, 0, 0, 1, 0, 2, 0, 0, 2, 0, 2, -1, 1, 1, 1, 3, 1, 0, 0, 0, 1, 2, 0, 0, 0, 2, 2, -1, 1, 1, 1, 3, 3, 2, 1, 0, 0, 3, 1, 2, 0, 0, 4, 1, 1, 1, 1, 3, 3, 2, 0, 1, 0, 3, 1, 0, 2, 0, 4, 1, 1, 1, 1, 3, 3, 0, 2, 1, 0, 3, 0, 1, 2, 0, 4, 1, 1, 1, 1, 3, 3, 2, 0, 0, 1, 3, 1, 0, 0, 2, 4, 1, 1, 1, 1, 3, 3, 0, 2, 0, 1, 3, 0, 1, 0, 2, 4, 1, 1, 1, 1, 3, 3, 0, 0, 2, 1, 3, 0, 0, 1, 2, 4, 1, 1, 1, 1, 3, 3, 2, 1, 0, 0, 3, 1, 2, 0, 0, 2, 1, 1, 1, -1, 3, 3, 2, 0, 1, 0, 3, 1, 0, 2, 0, 2, 1, 1, 1, -1, 3, 3, 0, 2, 1, 0, 3, 0, 1, 2, 0, 2, 1, 1, 1, -1, 3, 3, 2, 1, 0, 0, 3, 1, 2, 0, 0, 2, 1, 1, -1, 1, 3, 3, 2, 0, 0, 1, 3, 1, 0, 0, 2, 2, 1, 1, -1, 1, 3, 3, 0, 2, 0, 1, 3, 0, 1, 0, 2, 2, 1, 1, -1, 1, 3, 3, 2, 0, 1, 0, 3, 1, 0, 2, 0, 2, 1, -1, 1, 1, 3, 3, 2, 0, 0, 1, 3, 1, 0, 0, 2, 2, 1, -1, 1, 1, 3, 3, 0, 0, 2, 1, 3, 0, 0, 1, 2, 2, 1, -1, 1, 1, 3, 3, 0, 2, 1, 0, 3, 0, 1, 2, 0, 2, -1, 1, 1, 1, 3, 3, 0, 2, 0, 1, 3, 0, 1, 0, 2, 2, -1, 1, 1, 1, 3, 3, 0, 0, 2, 1, 3, 0, 0, 1, 2, 2, -1, 1, 1, 1 };
+            var lookupPairs4D = new int[] { 0, 3, 1, 2, 2, 3, 5, 2, 6, 1, 7, 1, 8, 3, 9, 2, 10, 3, 13, 2, 16, 3, 18, 3, 22, 1, 23, 1, 24, 3, 26, 3, 33, 2, 37, 2, 38, 1, 39, 1, 41, 2, 45, 2, 54, 1, 55, 1, 56, 0, 57, 0, 58, 0, 59, 0, 60, 0, 61, 0, 62, 0, 63, 0, 256, 3, 258, 3, 264, 3, 266, 3, 272, 3, 274, 3, 280, 3, 282, 3, 2049, 2, 2053, 2, 2057, 2, 2061, 2, 2081, 2, 2085, 2, 2089, 2, 2093, 2, 2304, 9, 2305, 9, 2312, 9, 2313, 9, 16390, 1, 16391, 1, 16406, 1, 16407, 1, 16422, 1, 16423, 1, 16438, 1, 16439, 1, 16642, 8, 16646, 8, 16658, 8, 16662, 8, 18437, 6, 18439, 6, 18469, 6, 18471, 6, 18688, 9, 18689, 9, 18690, 8, 18693, 6, 18694, 8, 18695, 6, 18696, 9, 18697, 9, 18706, 8, 18710, 8, 18725, 6, 18727, 6, 131128, 0, 131129, 0, 131130, 0, 131131, 0, 131132, 0, 131133, 0, 131134, 0, 131135, 0, 131352, 7, 131354, 7, 131384, 7, 131386, 7, 133161, 5, 133165, 5, 133177, 5, 133181, 5, 133376, 9, 133377, 9, 133384, 9, 133385, 9, 133400, 7, 133402, 7, 133417, 5, 133421, 5, 133432, 7, 133433, 5, 133434, 7, 133437, 5, 147510, 4, 147511, 4, 147518, 4, 147519, 4, 147714, 8, 147718, 8, 147730, 8, 147734, 8, 147736, 7, 147738, 7, 147766, 4, 147767, 4, 147768, 7, 147770, 7, 147774, 4, 147775, 4, 149509, 6, 149511, 6, 149541, 6, 149543, 6, 149545, 5, 149549, 5, 149558, 4, 149559, 4, 149561, 5, 149565, 5, 149566, 4, 149567, 4, 149760, 9, 149761, 9, 149762, 8, 149765, 6, 149766, 8, 149767, 6, 149768, 9, 149769, 9, 149778, 8, 149782, 8, 149784, 7, 149786, 7, 149797, 6, 149799, 6, 149801, 5, 149805, 5, 149814, 4, 149815, 4, 149816, 7, 149817, 5, 149818, 7, 149821, 5, 149822, 4, 149823, 4, 149824, 37, 149825, 37, 149826, 36, 149829, 34, 149830, 36, 149831, 34, 149832, 37, 149833, 37, 149842, 36, 149846, 36, 149848, 35, 149850, 35, 149861, 34, 149863, 34, 149865, 33, 149869, 33, 149878, 32, 149879, 32, 149880, 35, 149881, 33, 149882, 35, 149885, 33, 149886, 32, 149887, 32, 150080, 49, 150082, 48, 150088, 49, 150098, 48, 150104, 47, 150106, 47, 151873, 46, 151877, 45, 151881, 46, 151909, 45, 151913, 44, 151917, 44, 152128, 49, 152129, 46, 152136, 49, 152137, 46, 166214, 43, 166215, 42, 166230, 43, 166247, 42, 166262, 41, 166263, 41, 166466, 48, 166470, 43, 166482, 48, 166486, 43, 168261, 45, 168263, 42, 168293, 45, 168295, 42, 168512, 31, 168513, 28, 168514, 31, 168517, 28, 168518, 25, 168519, 25, 280952, 40, 280953, 39, 280954, 40, 280957, 39, 280958, 38, 280959, 38, 281176, 47, 281178, 47, 281208, 40, 281210, 40, 282985, 44, 282989, 44, 283001, 39, 283005, 39, 283208, 30, 283209, 27, 283224, 30, 283241, 27, 283256, 22, 283257, 22, 297334, 41, 297335, 41, 297342, 38, 297343, 38, 297554, 29, 297558, 24, 297562, 29, 297590, 24, 297594, 21, 297598, 21, 299365, 26, 299367, 23, 299373, 26, 299383, 23, 299389, 20, 299391, 20, 299584, 31, 299585, 28, 299586, 31, 299589, 28, 299590, 25, 299591, 25, 299592, 30, 299593, 27, 299602, 29, 299606, 24, 299608, 30, 299610, 29, 299621, 26, 299623, 23, 299625, 27, 299629, 26, 299638, 24, 299639, 23, 299640, 22, 299641, 22, 299642, 21, 299645, 20, 299646, 21, 299647, 20, 299648, 61, 299649, 60, 299650, 61, 299653, 60, 299654, 59, 299655, 59, 299656, 58, 299657, 57, 299666, 55, 299670, 54, 299672, 58, 299674, 55, 299685, 52, 299687, 51, 299689, 57, 299693, 52, 299702, 54, 299703, 51, 299704, 56, 299705, 56, 299706, 53, 299709, 50, 299710, 53, 299711, 50, 299904, 61, 299906, 61, 299912, 58, 299922, 55, 299928, 58, 299930, 55, 301697, 60, 301701, 60, 301705, 57, 301733, 52, 301737, 57, 301741, 52, 301952, 79, 301953, 79, 301960, 76, 301961, 76, 316038, 59, 316039, 59, 316054, 54, 316071, 51, 316086, 54, 316087, 51, 316290, 78, 316294, 78, 316306, 73, 316310, 73, 318085, 77, 318087, 77, 318117, 70, 318119, 70, 318336, 79, 318337, 79, 318338, 78, 318341, 77, 318342, 78, 318343, 77, 430776, 56, 430777, 56, 430778, 53, 430781, 50, 430782, 53, 430783, 50, 431000, 75, 431002, 72, 431032, 75, 431034, 72, 432809, 74, 432813, 69, 432825, 74, 432829, 69, 433032, 76, 433033, 76, 433048, 75, 433065, 74, 433080, 75, 433081, 74, 447158, 71, 447159, 68, 447166, 71, 447167, 68, 447378, 73, 447382, 73, 447386, 72, 447414, 71, 447418, 72, 447422, 71, 449189, 70, 449191, 70, 449197, 69, 449207, 68, 449213, 69, 449215, 68, 449408, 67, 449409, 67, 449410, 66, 449413, 64, 449414, 66, 449415, 64, 449416, 67, 449417, 67, 449426, 66, 449430, 66, 449432, 65, 449434, 65, 449445, 64, 449447, 64, 449449, 63, 449453, 63, 449462, 62, 449463, 62, 449464, 65, 449465, 63, 449466, 65, 449469, 63, 449470, 62, 449471, 62, 449472, 19, 449473, 19, 449474, 18, 449477, 16, 449478, 18, 449479, 16, 449480, 19, 449481, 19, 449490, 18, 449494, 18, 449496, 17, 449498, 17, 449509, 16, 449511, 16, 449513, 15, 449517, 15, 449526, 14, 449527, 14, 449528, 17, 449529, 15, 449530, 17, 449533, 15, 449534, 14, 449535, 14, 449728, 19, 449729, 19, 449730, 18, 449734, 18, 449736, 19, 449737, 19, 449746, 18, 449750, 18, 449752, 17, 449754, 17, 449784, 17, 449786, 17, 451520, 19, 451521, 19, 451525, 16, 451527, 16, 451528, 19, 451529, 19, 451557, 16, 451559, 16,Line truncated
+            var contributions4D = new Contribution4[p4D.Length / 16];
+            for (int i = 0; i < p4D.Length; i += 16)
+            {
+                var baseSet = base4D[p4D[i]];
+                Contribution4 previous = null, current = null;
+                for (int k = 0; k < baseSet.Length; k += 5)
+                {
+                    current = new Contribution4(baseSet[k], baseSet[k + 1], baseSet[k + 2], baseSet[k + 3], baseSet[k + 4]);
+                    if (previous == null)
+                    {
+                        contributions4D[i / 16] = current;
+                    }
+                    else
+                    {
+                        previous.Next = current;
+                    }
+                    previous = current;
+                }
+                current.Next = new Contribution4(p4D[i + 1], p4D[i + 2], p4D[i + 3], p4D[i + 4], p4D[i + 5]);
+                current.Next.Next = new Contribution4(p4D[i + 6], p4D[i + 7], p4D[i + 8], p4D[i + 9], p4D[i + 10]);
+                current.Next.Next.Next = new Contribution4(p4D[i + 11], p4D[i + 12], p4D[i + 13], p4D[i + 14], p4D[i + 15]);
+            }
+
+            lookup4D = new Contribution4[1048576];
+            for (var i = 0; i < lookupPairs4D.Length; i += 2)
+            {
+                lookup4D[lookupPairs4D[i]] = contributions4D[lookupPairs4D[i + 1]];
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private static int FastFloor(double x)
+        {
+            var xi = (int)x;
+            return x < xi ? xi - 1 : xi;
+        }
+
+        public OpenSimplexNoise()
+            : this(DateTime.Now.Ticks)
+        {
+        }
+
+        public OpenSimplexNoise(long seed)
+        {
+            perm = new byte[256];
+            perm2D = new byte[256];
+            perm3D = new byte[256];
+            perm4D = new byte[256];
+            var source = new byte[256];
+            for (int i = 0; i < 256; i++)
+            {
+                source[i] = (byte)i;
+            }
+            seed = seed * 6364136223846793005L + 1442695040888963407L;
+            seed = seed * 6364136223846793005L + 1442695040888963407L;
+            seed = seed * 6364136223846793005L + 1442695040888963407L;
+            for (int i = 255; i >= 0; i--)
+            {
+                seed = seed * 6364136223846793005L + 1442695040888963407L;
+                int r = (int)((seed + 31) % (i + 1));
+                if (r < 0)
+                {
+                    r += (i + 1);
+                }
+                perm[i] = source[r];
+                perm2D[i] = (byte)(perm[i] & 0x0E);
+                perm3D[i] = (byte)((perm[i] % 24) * 3);
+                perm4D[i] = (byte)(perm[i] & 0xFC);
+                source[r] = source[i];
+            }
+        }
+
+        public double Evaluate(double x, double y)
+        {
+            var stretchOffset = (x + y) * STRETCH_2D;
+            var xs = x + stretchOffset;
+            var ys = y + stretchOffset;
+
+            var xsb = FastFloor(xs);
+            var ysb = FastFloor(ys);
+
+            var squishOffset = (xsb + ysb) * SQUISH_2D;
+            var dx0 = x - (xsb + squishOffset);
+            var dy0 = y - (ysb + squishOffset);
+
+            var xins = xs - xsb;
+            var yins = ys - ysb;
+
+            var inSum = xins + yins;
+
+            var hash =
+               (int)(xins - yins + 1) |
+               (int)(inSum) << 1 |
+               (int)(inSum + yins) << 2 |
+               (int)(inSum + xins) << 4;
+
+            var c = lookup2D[hash];
+
+            var value = 0.0;
+            while (c != null)
+            {
+                var dx = dx0 + c.dx;
+                var dy = dy0 + c.dy;
+                var attn = 2 - dx * dx - dy * dy;
+                if (attn > 0)
+                {
+                    var px = xsb + c.xsb;
+                    var py = ysb + c.ysb;
+
+                    var i = perm2D[(perm[px & 0xFF] + py) & 0xFF];
+                    var valuePart = gradients2D[i] * dx + gradients2D[i + 1] * dy;
+
+                    attn *= attn;
+                    value += attn * attn * valuePart;
+                }
+                c = c.Next;
+            }
+            return value * NORM_2D;
+        }
+
+        public double Evaluate(double x, double y, double z)
+        {
+            var stretchOffset = (x + y + z) * STRETCH_3D;
+            var xs = x + stretchOffset;
+            var ys = y + stretchOffset;
+            var zs = z + stretchOffset;
+
+            var xsb = FastFloor(xs);
+            var ysb = FastFloor(ys);
+            var zsb = FastFloor(zs);
+
+            var squishOffset = (xsb + ysb + zsb) * SQUISH_3D;
+            var dx0 = x - (xsb + squishOffset);
+            var dy0 = y - (ysb + squishOffset);
+            var dz0 = z - (zsb + squishOffset);
+
+            var xins = xs - xsb;
+            var yins = ys - ysb;
+            var zins = zs - zsb;
+
+            var inSum = xins + yins + zins;
+
+            var hash =
+               (int)(yins - zins + 1) |
+               (int)(xins - yins + 1) << 1 |
+               (int)(xins - zins + 1) << 2 |
+               (int)inSum << 3 |
+               (int)(inSum + zins) << 5 |
+               (int)(inSum + yins) << 7 |
+               (int)(inSum + xins) << 9;
+
+            var c = lookup3D[hash];
+
+            var value = 0.0;
+            while (c != null)
+            {
+                var dx = dx0 + c.dx;
+                var dy = dy0 + c.dy;
+                var dz = dz0 + c.dz;
+                var attn = 2 - dx * dx - dy * dy - dz * dz;
+                if (attn > 0)
+                {
+                    var px = xsb + c.xsb;
+                    var py = ysb + c.ysb;
+                    var pz = zsb + c.zsb;
+
+                    var i = perm3D[(perm[(perm[px & 0xFF] + py) & 0xFF] + pz) & 0xFF];
+                    var valuePart = gradients3D[i] * dx + gradients3D[i + 1] * dy + gradients3D[i + 2] * dz;
+
+                    attn *= attn;
+                    value += attn * attn * valuePart;
+                }
+
+                c = c.Next;
+            }
+            return value * NORM_3D;
+        }
+
+        public double Evaluate(double x, double y, double z, double w)
+        {
+            var stretchOffset = (x + y + z + w) * STRETCH_4D;
+            var xs = x + stretchOffset;
+            var ys = y + stretchOffset;
+            var zs = z + stretchOffset;
+            var ws = w + stretchOffset;
+
+            var xsb = FastFloor(xs);
+            var ysb = FastFloor(ys);
+            var zsb = FastFloor(zs);
+            var wsb = FastFloor(ws);
+
+            var squishOffset = (xsb + ysb + zsb + wsb) * SQUISH_4D;
+            var dx0 = x - (xsb + squishOffset);
+            var dy0 = y - (ysb + squishOffset);
+            var dz0 = z - (zsb + squishOffset);
+            var dw0 = w - (wsb + squishOffset);
+
+            var xins = xs - xsb;
+            var yins = ys - ysb;
+            var zins = zs - zsb;
+            var wins = ws - wsb;
+
+            var inSum = xins + yins + zins + wins;
+
+            var hash =
+                (int)(zins - wins + 1) |
+                (int)(yins - zins + 1) << 1 |
+                (int)(yins - wins + 1) << 2 |
+                (int)(xins - yins + 1) << 3 |
+                (int)(xins - zins + 1) << 4 |
+                (int)(xins - wins + 1) << 5 |
+                (int)inSum << 6 |
+                (int)(inSum + wins) << 8 |
+                (int)(inSum + zins) << 11 |
+                (int)(inSum + yins) << 14 |
+                (int)(inSum + xins) << 17;
+
+            var c = lookup4D[hash];
+
+            var value = 0.0;
+            while (c != null)
+            {
+                var dx = dx0 + c.dx;
+                var dy = dy0 + c.dy;
+                var dz = dz0 + c.dz;
+                var dw = dw0 + c.dw;
+                var attn = 2 - dx * dx - dy * dy - dz * dz - dw * dw;
+                if (attn > 0)
+                {
+                    var px = xsb + c.xsb;
+                    var py = ysb + c.ysb;
+                    var pz = zsb + c.zsb;
+                    var pw = wsb + c.wsb;
+
+                    var i = perm4D[(perm[(perm[(perm[px & 0xFF] + py) & 0xFF] + pz) & 0xFF] + pw) & 0xFF];
+                    var valuePart = gradients4D[i] * dx + gradients4D[i + 1] * dy + gradients4D[i + 2] * dz + gradients4D[i + 3] * dw;
+
+                    attn *= attn;
+                    value += attn * attn * valuePart;
+                }
+
+                c = c.Next;
+            }
+            return value * NORM_4D;
+        }
+
+        private class Contribution2
+        {
+            public double dx, dy;
+            public int xsb, ysb;
+            public Contribution2 Next;
+
+            public Contribution2(double multiplier, int xsb, int ysb)
+            {
+                dx = -xsb - multiplier * SQUISH_2D;
+                dy = -ysb - multiplier * SQUISH_2D;
+                this.xsb = xsb;
+                this.ysb = ysb;
+            }
+        }
+
+        private class Contribution3
+        {
+            public double dx, dy, dz;
+            public int xsb, ysb, zsb;
+            public Contribution3 Next;
+
+            public Contribution3(double multiplier, int xsb, int ysb, int zsb)
+            {
+                dx = -xsb - multiplier * SQUISH_3D;
+                dy = -ysb - multiplier * SQUISH_3D;
+                dz = -zsb - multiplier * SQUISH_3D;
+                this.xsb = xsb;
+                this.ysb = ysb;
+                this.zsb = zsb;
+            }
+        }
+
+        private class Contribution4
+        {
+            public double dx, dy, dz, dw;
+            public int xsb, ysb, zsb, wsb;
+            public Contribution4 Next;
+
+            public Contribution4(double multiplier, int xsb, int ysb, int zsb, int wsb)
+            {
+                dx = -xsb - multiplier * SQUISH_4D;
+                dy = -ysb - multiplier * SQUISH_4D;
+                dz = -zsb - multiplier * SQUISH_4D;
+                dw = -wsb - multiplier * SQUISH_4D;
+                this.xsb = xsb;
+                this.ysb = ysb;
+                this.zsb = zsb;
+                this.wsb = wsb;
+            }
+        }
+    }
+}