_baseline emscripten build

Deprecated on 31th July 2020

.lfsconfig

@@ -1,4 +1,4 @@
 # Redirect to our own Git LFS server
 [lfs]
-url="https://gitlab.flaxengine.com/flax/flaxengine.git/info/lfs"
+#url="https://gitlab.flaxengine.com/flax/flaxengine.git/info/lfs"
 locksverify = false

GenerateProjectFiles.command

@@ -12,6 +12,6 @@ cd "`dirname "$0"`"
 bash ./Development/Scripts/Mac/CallBuildTool.sh --genproject "$@"
 
 # Build bindings for all editor configurations
-#echo Building C# bindings...
+echo Building C# bindings...
 # TODO: Detect the correct architecture here
-#Binaries/Tools/Flax.Build -build -BuildBindingsOnly -arch=ARM64 -platform=Mac --buildTargets=FlaxEditor
+Binaries/Tools/Flax.Build -build -BuildBindingsOnly -arch=ARM64 -platform=Mac --buildTargets=FlaxEditor

Source/Editor/Cooker/CookingData.h

@@ -141,6 +141,11 @@ API_ENUM() enum class BuildPlatform
     /// </summary>
     API_ENUM(Attributes="EditorDisplay(null, \"Windows ARM64\")")
     WindowsARM64 = 15,
+
+    /// <summary>
+    /// Web
+    /// </summary>
+    Web = 16,
 };
 
 /// <summary>
@@ -188,6 +193,11 @@ enum class DotNetAOTModes
     /// Use Mono AOT to cross-compile all used C# assemblies into native platform static libraries which can be linked into a single shared library.
     /// </summary>
     MonoAOTStatic,
+
+    /// <summary>
+    /// Target platform doesn't support .NET or it has been disabled.
+    /// </summary>
+    NoDotnet,
 };
 
 extern FLAXENGINE_API const Char* ToString(const BuildPlatform platform);

Source/Editor/Cooker/GameCooker.cpp

@@ -69,6 +69,10 @@
 #include "Platform/iOS/iOSPlatformTools.h"
 #include "Engine/Platform/iOS/iOSPlatformSettings.h"
 #endif
+#if PLATFORM_TOOLS_WEB
+#include "Platform/Web/WebPlatformTools.h"
+#include "Engine/Platform/Web/WebPlatformSettings.h"
+#endif
 
 namespace GameCookerImpl
 {
@@ -151,6 +155,8 @@ const Char* ToString(const BuildPlatform platform)
         return TEXT("iOS ARM64");
     case BuildPlatform::WindowsARM64:
         return TEXT("Windows ARM64");
+    case BuildPlatform::Web:
+        return TEXT("Web");
     default:
         return TEXT("");
     }
@@ -183,6 +189,8 @@ const Char* ToString(const DotNetAOTModes mode)
         return TEXT("MonoAOTDynamic");
     case DotNetAOTModes::MonoAOTStatic:
         return TEXT("MonoAOTStatic");
+    case DotNetAOTModes::NoDotnet:
+        return TEXT("NoDotnet");
     default:
         return TEXT("");
     }
@@ -307,6 +315,10 @@ void CookingData::GetBuildPlatformName(const Char*& platform, const Char*& archi
         platform = TEXT("Windows");
         architecture = TEXT("ARM64");
         break;
+    case BuildPlatform::Web:
+        platform = TEXT("Web");
+        architecture = TEXT("x86");
+        break;
     default:
         LOG(Fatal, "Unknown or unsupported build platform.");
     }
@@ -461,6 +473,11 @@ PlatformTools* GameCooker::GetTools(BuildPlatform platform)
         case BuildPlatform::iOSARM64:
             result = New<iOSPlatformTools>();
             break;
+#endif
+#if PLATFORM_TOOLS_WEB
+        case BuildPlatform::Web:
+            result = New<WebPlatformTools>();
+            break;
 #endif
         }
         Tools.Add(platform, result);
@@ -604,6 +621,9 @@ void GameCooker::GetCurrentPlatform(PlatformType& platform, BuildPlatform& build
     case PlatformType::iOS:
         buildPlatform = BuildPlatform::iOSARM64;
         break;
+    case PlatformType::Web:
+        buildPlatform = BuildPlatform::Web;
+        break;
     default: ;
     }
 }

Source/Editor/Cooker/GameCooker.cs

@@ -106,6 +106,7 @@ namespace FlaxEditor
             case BuildPlatform.MacOSARM64:
             case BuildPlatform.MacOSx64: return PlatformType.Mac;
             case BuildPlatform.iOSARM64: return PlatformType.iOS;
+            case BuildPlatform.Web: return PlatformType.Web;
             default: throw new ArgumentOutOfRangeException(nameof(buildPlatform), buildPlatform, null);
             }
         }

Source/Editor/Cooker/Platform/Android/AndroidPlatformTools.cpp

@@ -138,6 +138,7 @@ Array<byte> AndroidPlatformTools::SaveCache(CookingData& data, IBuildCache* cach
     result.Add((const byte*)&platformCache, sizeof(platformCache));
     return result;
 }
+
 void AndroidPlatformTools::OnBuildStarted(CookingData& data)
 {
     // Adjust the cooking output folder to be located inside the Gradle assets directory
@@ -412,7 +413,6 @@ bool AndroidPlatformTools::OnPostProcess(CookingData& data)
     }
     LOG(Info, "Output Android APK application package: {0} (size: {1} MB)", outputApk, FileSystem::GetFileSize(outputApk) / 1024 / 1024);
 
-
     return false;
 }
 

Source/Editor/Cooker/Platform/Web/WebPlatformTools.cpp

@@ -0,0 +1,157 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#if PLATFORM_TOOLS_WEB
+
+#include "WebPlatformTools.h"
+#include "Engine/Platform/File.h"
+#include "Engine/Platform/FileSystem.h"
+#include "Engine/Platform/CreateProcessSettings.h"
+#include "Engine/Platform/Web/WebPlatformSettings.h"
+#include "Engine/Core/Config/GameSettings.h"
+#include "Engine/Core/Config/BuildSettings.h"
+#include "Engine/Content/Content.h"
+#include "Engine/Content/JsonAsset.h"
+#include "Engine/Graphics/PixelFormatExtensions.h"
+#include "Editor/Cooker/GameCooker.h"
+
+IMPLEMENT_SETTINGS_GETTER(WebPlatformSettings, WebPlatform);
+
+const Char* WebPlatformTools::GetDisplayName() const
+{
+    return TEXT("Web");
+}
+
+const Char* WebPlatformTools::GetName() const
+{
+    return TEXT("Web");
+}
+
+PlatformType WebPlatformTools::GetPlatform() const
+{
+    return PlatformType::Web;
+}
+
+ArchitectureType WebPlatformTools::GetArchitecture() const
+{
+    return ArchitectureType::x86;
+}
+
+DotNetAOTModes WebPlatformTools::UseAOT() const
+{
+    return DotNetAOTModes::NoDotnet;
+}
+
+PixelFormat WebPlatformTools::GetTextureFormat(CookingData& data, TextureBase* texture, PixelFormat format)
+{
+    // TODO: texture compression for Web (eg. ASTC for mobile and BC for others?)
+    return PixelFormatExtensions::FindUncompressedFormat(format);
+}
+
+bool WebPlatformTools::IsNativeCodeFile(CookingData& data, const String& file)
+{
+    String extension = FileSystem::GetExtension(file);
+    return extension.IsEmpty() || extension == TEXT("html") || extension == TEXT("js") || extension == TEXT("wasm");
+}
+
+void WebPlatformTools::OnBuildStarted(CookingData& data)
+{
+    // Adjust the cooking output folder for the data files so file_packager tool can build the and output final data inside the cooker output folder
+    data.DataOutputPath = data.CacheDirectory / TEXT("Files");
+}
+
+bool WebPlatformTools::OnPostProcess(CookingData& data)
+{
+    const auto gameSettings = GameSettings::Get();
+    const auto platformSettings = WebPlatformSettings::Get();
+    const auto platformDataPath = data.GetPlatformBinariesRoot();
+
+    // Get name of the output binary (JavaScript and WebAssembly files match)
+    String gameJs;
+    {
+        Array<String> files;
+        FileSystem::DirectoryGetFiles(files, data.OriginalOutputPath, TEXT("*"), DirectorySearchOption::TopDirectoryOnly);
+        for (String& file : files)
+        {
+            if (file.EndsWith(TEXT(".js")))
+            {
+                String outputWasm = String(StringUtils::GetPathWithoutExtension(file)) + TEXT(".wasm");
+                if (files.Contains(outputWasm))
+                {
+                    gameJs = file;
+                    break;
+                }
+            }
+        }
+    }
+    if (gameJs.IsEmpty())
+    {
+        data.Error(TEXT("Failed to find the main JavaScript for the output game"));
+        return true;
+    }
+
+    // Pack data files into a single file using Emscripten's file_packager tool
+    {
+        CreateProcessSettings procSettings;
+        String emscriptenSdk = TEXT("EMSDK");
+        Platform::GetEnvironmentVariable(emscriptenSdk, emscriptenSdk);
+        procSettings.FileName = emscriptenSdk / TEXT("upstream/emscripten/tools/file_packager");
+#if PLATFORM_WIN32
+        procSettings.FileName += TEXT(".bat");
+#endif
+        procSettings.Arguments = String::Format(TEXT("files.data --preload \"{}@/\" --lz4 --js-output=files.js"), data.DataOutputPath);
+        procSettings.WorkingDirectory = data.OriginalOutputPath;
+        const int32 result = Platform::CreateProcess(procSettings);
+        if (result != 0)
+        {
+            if (!FileSystem::FileExists(procSettings.FileName))
+                data.Error(TEXT("Missing file_packager.bat. Ensure Emscripten SDK installation is valid and 'EMSDK' environment variable points to it."));
+            data.Error(String::Format(TEXT("Failed to package project files (result code: {0}). See log for more info."), result));
+            return true;
+        }
+    }
+
+    // TODO: customizable HTML templates
+
+    // Insert packaged file system with game data
+    {
+        String gameJsText;
+        if (File::ReadAllText(gameJs, gameJsText))
+        {
+            data.Error(String::Format(TEXT("Failed to load file '{}'"), gameJs));
+            return true;
+        }
+        const String filesIncludeBegin = TEXT("// include: files.js");
+        const String filesIncludeEnd = TEXT("// end include: files.js");
+        if (!gameJsText.Contains(filesIncludeBegin))
+        {
+            // Insert generated files.js into the main game file after the minimum_runtime_check.js include
+            String fileJsText;
+            String fileJs = data.OriginalOutputPath / TEXT("files.js");
+            if (File::ReadAllText(fileJs, fileJsText))
+            {
+                data.Error(String::Format(TEXT("Failed to load file '{}'"), fileJs));
+                return true;
+            }
+            const String insertPrefixLocation = TEXT("// end include: minimum_runtime_check.js");
+            int32 location = gameJsText.Find(insertPrefixLocation);
+            CHECK_RETURN(location != -1, true);
+            location += insertPrefixLocation.Length() + 1;
+            fileJsText = filesIncludeBegin + TEXT("\n") + fileJsText + TEXT("\n") + filesIncludeEnd + TEXT("\n");
+            gameJsText.Insert(location, fileJsText);
+            File::WriteAllText(gameJs, gameJsText, Encoding::UTF8);
+        }
+    }
+
+    const auto buildSettings = BuildSettings::Get();
+    if (buildSettings->SkipPackaging)
+        return false;
+    GameCooker::PackageFiles();
+
+    // TODO: minify/compress output JS files (in Release builds)
+
+    LOG(Info, "Output website size: {0} MB", FileSystem::GetDirectorySize(data.OriginalOutputPath) / 1024 / 1024);
+
+    return false;
+}
+
+#endif

Source/Editor/Cooker/Platform/Web/WebPlatformTools.h

@@ -0,0 +1,27 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if PLATFORM_TOOLS_WEB
+
+#include "../../PlatformTools.h"
+
+/// <summary>
+/// The Web platform support tools.
+/// </summary>
+class WebPlatformTools : public PlatformTools
+{
+public:
+    // [PlatformTools]
+    const Char* GetDisplayName() const override;
+    const Char* GetName() const override;
+    PlatformType GetPlatform() const override;
+    ArchitectureType GetArchitecture() const override;
+    DotNetAOTModes UseAOT() const override;
+    PixelFormat GetTextureFormat(CookingData& data, TextureBase* texture, PixelFormat format) override;
+    bool IsNativeCodeFile(CookingData& data, const String& file) override;
+    void OnBuildStarted(CookingData& data) override;
+    bool OnPostProcess(CookingData& data) override;
+};
+
+#endif

Source/Editor/Cooker/Steps/CookAssetsStep.cpp

@@ -572,6 +572,14 @@ bool ProcessShaderBase(CookAssetsStep::AssetCookData& data, ShaderAssetBase* ass
         COMPILE_PROFILE(Vulkan_SM5, SHADER_FILE_CHUNK_INTERNAL_VULKAN_SM5_CACHE);
         break;
     }
+#endif
+#if PLATFORM_TOOLS_WEB
+    case BuildPlatform::Web:
+    {
+        const char* platformDefineName = "PLATFORM_WEB";
+        // TODO: compile shaders for WebGPU
+        break;
+    }
 #endif
     default:
     {

Source/Editor/Cooker/Steps/DeployDataStep.cpp

@@ -39,17 +39,23 @@ bool DeployDataStep::Perform(CookingData& data)
     }
     String dstDotnet = data.DataOutputPath / TEXT("Dotnet");
     const DotNetAOTModes aotMode = data.Tools->UseAOT();
-    const bool usAOT = aotMode != DotNetAOTModes::None;
+    const bool usAOT = aotMode != DotNetAOTModes::None && aotMode != DotNetAOTModes::NoDotnet;
     if (usAOT)
     {
         // Deploy Dotnet files into intermediate cooking directory for AOT
         FileSystem::DeleteDirectory(dstDotnet);
         dstDotnet = data.ManagedCodeOutputPath;
     }
-    if (buildSettings.SkipDotnetPackaging && data.Tools->UseSystemDotnet())
+    if (aotMode == DotNetAOTModes::NoDotnet)
+    {
+        // No .NET
+        FileSystem::DeleteDirectory(dstDotnet);
+    }
+    else if (buildSettings.SkipDotnetPackaging && data.Tools->UseSystemDotnet())
     {
         // Use system-installed .NET Runtime
         FileSystem::DeleteDirectory(dstDotnet);
+        LOG(Info, "Not using .NET Runtime");
     }
     else
     {

Source/Editor/Cooker/Steps/PrecompileAssembliesStep.cpp

@@ -12,7 +12,9 @@
 void PrecompileAssembliesStep::OnBuildStarted(CookingData& data)
 {
     const DotNetAOTModes aotMode = data.Tools->UseAOT();
-    if (aotMode == DotNetAOTModes::None || EnumHasAllFlags(data.Options, BuildOptions::NoCook))
+    if (aotMode == DotNetAOTModes::None || 
+        aotMode == DotNetAOTModes::NoDotnet || 
+        EnumHasAllFlags(data.Options, BuildOptions::NoCook))
         return;
     const auto& buildSettings = *BuildSettings::Get();
 
@@ -49,7 +51,8 @@ void PrecompileAssembliesStep::OnBuildStarted(CookingData& data)
 bool PrecompileAssembliesStep::Perform(CookingData& data)
 {
     const DotNetAOTModes aotMode = data.Tools->UseAOT();
-    if (aotMode == DotNetAOTModes::None)
+    if (aotMode == DotNetAOTModes::None ||
+        aotMode == DotNetAOTModes::NoDotnet)
         return false;
     const auto& buildSettings = *BuildSettings::Get();
     if (buildSettings.SkipDotnetPackaging && data.Tools->UseSystemDotnet())

Source/Editor/Editor.Build.cs

@@ -87,6 +87,7 @@ public class Editor : EditorModule
             AddPlatformTools(options, platformToolsRoot, platformToolsRootExternal, "Android", "PLATFORM_TOOLS_ANDROID");
             AddPlatformTools(options, platformToolsRoot, platformToolsRootExternal, "iOS", "PLATFORM_TOOLS_IOS");
         }
+        AddPlatformTools(options, platformToolsRoot, platformToolsRootExternal, "Web", "PLATFORM_TOOLS_WEB");
 
         // Visual Studio integration
         if (options.Platform.Target == TargetPlatform.Windows && Flax.Build.Platform.BuildTargetPlatform == TargetPlatform.Windows)

Source/Editor/GUI/PlatformSelector.cs

@@ -93,6 +93,7 @@ namespace FlaxEditor.GUI
                 new PlatformData(PlatformType.PS5, icons.PS5Icon128, "PlayStation 5"),
                 new PlatformData(PlatformType.Mac, icons.MacOSIcon128, "macOS"),
                 new PlatformData(PlatformType.iOS, icons.IOSIcon128, "iOS"),
+                new PlatformData(PlatformType.Web, icons.Flax64, "Web"),
             };
 
             const float IconSize = 64.0f;

Source/Editor/GUI/Timeline/ParticleSystemTimeline.cs

@@ -201,10 +201,9 @@ namespace FlaxEditor.GUI.Timeline
                     var idx = stream.ReadInt32();
                     var id = stream.ReadGuid();
                     object value = null;
-                    if (version == 2)
+                    if (version <= 2)
-                        stream.ReadCommonValue(ref value);
+                        throw new Exception("Not supported asset version. Open and re-save asset with Flax 1.11.");
-                    else
+                    value = stream.ReadVariant();
-                        value = stream.ReadVariant();
 
                     Emitters[idx].ParametersOverrides.Add(id, value);
                 }

Source/Editor/Surface/Archetypes/Tools.cs

@@ -1603,9 +1603,9 @@ namespace FlaxEditor.Surface.Archetypes
                 Title = "Platform Switch",
                 Description = "Gets the input value based on the runtime-platform type",
                 Flags = NodeFlags.AllGraphs,
-                Size = new Float2(220, 240),
+                Size = new Float2(220, 260),
                 ConnectionsHints = ConnectionsHint.Value,
-                IndependentBoxes = new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 },
+                IndependentBoxes = new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 },
                 DependentBoxes = new[] { 0 },
                 Elements = new[]
                 {
@@ -1622,6 +1622,7 @@ namespace FlaxEditor.Surface.Archetypes
                     NodeElementArchetype.Factory.Input(9, "PlayStation 5", true, null, 10),
                     NodeElementArchetype.Factory.Input(10, "Mac", true, null, 11),
                     NodeElementArchetype.Factory.Input(11, "iOS", true, null, 12),
+                    NodeElementArchetype.Factory.Input(12, "Web", true, null, 13),
                 }
             },
             new NodeArchetype

Source/Editor/Surface/VisjectSurfaceContext.Serialization.cs

@@ -4,7 +4,6 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Threading;
-using FlaxEditor.Scripting;
 using FlaxEditor.Surface.Elements;
 using FlaxEditor.Utilities;
 using FlaxEngine;
@@ -503,205 +502,8 @@ namespace FlaxEditor.Surface
             var tmpHints = _cachedConnections.Value;
             var guidBytes = new byte[16];
             if (version < 7000)
-            {
+                throw new Exception("Not supported Visject Surface version. Open and re-save asset with Flax 1.11.");
-                // Time saved (not used anymore to prevent binary diffs after saving unmodified surface)
+            if (version == 7000)
-                stream.ReadInt64();
-
-                // Nodes count
-                int nodesCount = stream.ReadInt32();
-                if (Nodes.Capacity < nodesCount)
-                    Nodes.Capacity = nodesCount;
-                tmpHints.Clear();
-                tmpHints.Capacity = Mathf.Max(tmpHints.Capacity, nodesCount * 4);
-
-                // Parameters count
-                int parametersCount = stream.ReadInt32();
-                if (Parameters.Capacity < parametersCount)
-                    Parameters.Capacity = parametersCount;
-
-                // For each node
-                for (int i = 0; i < nodesCount; i++)
-                {
-                    // ID
-                    uint id = stream.ReadUInt32();
-
-                    // Type
-                    ushort typeId = stream.ReadUInt16();
-                    ushort groupId = stream.ReadUInt16();
-
-                    // Create node
-                    SurfaceNode node;
-                    if (groupId == Archetypes.Custom.GroupID)
-                        node = new DummyCustomNode(id, this);
-                    else
-                        node = NodeFactory.CreateNode(nodeArchetypes, id, this, groupId, typeId);
-                    if (node == null)
-                        node = new MissingNode(id, this, groupId, typeId);
-                    Nodes.Add(node);
-                }
-
-                // For each param
-                for (int i = 0; i < parametersCount; i++)
-                {
-                    // Create param
-                    var param = new SurfaceParameter();
-                    Parameters.Add(param);
-
-                    // Properties
-                    param.Type = new ScriptType(GetGraphParameterValueType((GraphParamType_Deprecated)stream.ReadByte()));
-                    stream.Read(guidBytes, 0, 16);
-                    param.ID = new Guid(guidBytes);
-                    param.Name = stream.ReadStr(97);
-                    param.IsPublic = stream.ReadByte() != 0;
-                    bool isStatic = stream.ReadByte() != 0;
-                    bool isUIVisible = stream.ReadByte() != 0;
-                    bool isUIEditable = stream.ReadByte() != 0;
-
-                    // References [Deprecated]
-                    int refsCount = stream.ReadInt32();
-                    for (int j = 0; j < refsCount; j++)
-                    {
-                        uint refID = stream.ReadUInt32();
-                    }
-
-                    // Value
-                    stream.ReadCommonValue(ref param.Value);
-
-                    // Meta
-                    param.Meta.Load(stream);
-                }
-
-                // For each node
-                for (int i = 0; i < nodesCount; i++)
-                {
-                    var node = Nodes[i];
-
-                    int valuesCnt = stream.ReadInt32();
-                    int firstValueReadIdx = 0;
-
-                    // Special case for missing nodes
-                    if (node is DummyCustomNode customNode)
-                    {
-                        node = null;
-
-                        // Values check
-                        if (valuesCnt < 2)
-                            throw new Exception("Missing custom nodes data.");
-
-                        // Node typename check
-                        object typeNameValue = null;
-                        stream.ReadCommonValue(ref typeNameValue);
-                        firstValueReadIdx = 1;
-                        string typeName = typeNameValue as string ?? string.Empty;
-
-                        // Find custom node archetype that matches this node type (it must be unique)
-                        if (customNodes?.Archetypes != null && typeName.Length != 0)
-                        {
-                            NodeArchetype arch = null;
-                            foreach (var nodeArchetype in customNodes.Archetypes)
-                            {
-                                if (string.Equals(Archetypes.Custom.GetNodeTypeName(nodeArchetype), typeName, StringComparison.OrdinalIgnoreCase))
-                                {
-                                    arch = nodeArchetype;
-                                    break;
-                                }
-                            }
-                            if (arch != null)
-                                node = NodeFactory.CreateNode(customNode.ID, this, customNodes, arch);
-                        }
-
-                        // Fallback to the
-                        if (node == null)
-                        {
-                            Editor.LogWarning(string.Format("Cannot find custom node archetype for {0}", typeName));
-                            node = new MissingNode(customNode.ID, this, Archetypes.Custom.GroupID, customNode.Archetype.TypeID);
-                        }
-                        Nodes[i] = node;
-
-                        // Store node typename in values container
-                        node.Values[0] = typeName;
-                    }
-                    if (node is MissingNode)
-                    {
-                        // Read all values
-                        Array.Resize(ref node.Values, valuesCnt);
-                        for (int j = firstValueReadIdx; j < valuesCnt; j++)
-                        {
-                            // ReSharper disable once PossibleNullReferenceException
-                            stream.ReadCommonValue(ref node.Values[j]);
-                        }
-                        firstValueReadIdx = valuesCnt = node.Values.Length;
-                    }
-
-                    // Values
-                    int nodeValuesCnt = node.Values?.Length ?? 0;
-                    if (valuesCnt == nodeValuesCnt)
-                    {
-                        for (int j = firstValueReadIdx; j < valuesCnt; j++)
-                        {
-                            // ReSharper disable once PossibleNullReferenceException
-                            stream.ReadCommonValue(ref node.Values[j]);
-                        }
-                    }
-                    else if ((node.Archetype.Flags & NodeFlags.VariableValuesSize) != 0)
-                    {
-                        node.Values = new object[valuesCnt];
-                        for (int j = firstValueReadIdx; j < valuesCnt; j++)
-                        {
-                            // ReSharper disable once PossibleNullReferenceException
-                            stream.ReadCommonValue(ref node.Values[j]);
-                        }
-                    }
-                    else
-                    {
-                        Editor.LogWarning(string.Format("Invalid node values. Loaded: {0}, expected: {1}. Type: {2}, {3}", valuesCnt, nodeValuesCnt, node.Archetype.Title, node.Archetype.TypeID));
-
-                        object dummy = null;
-                        for (int j = firstValueReadIdx; j < valuesCnt; j++)
-                        {
-                            stream.ReadCommonValue(ref dummy);
-
-                            if (j < nodeValuesCnt &&
-                                dummy != null &&
-                                node.Values[j] != null &&
-                                node.Values[j].GetType() == dummy.GetType())
-                            {
-                                node.Values[j] = dummy;
-                            }
-                        }
-                    }
-
-                    // Boxes
-                    ushort boxesCount = stream.ReadUInt16();
-                    for (int j = 0; j < boxesCount; j++)
-                    {
-                        var id = stream.ReadByte();
-                        stream.ReadUInt32(); // Skip type
-                        ushort connectionsCnt = stream.ReadUInt16();
-
-                        ConnectionHint hint;
-                        hint.NodeB = node.ID;
-                        hint.BoxB = id;
-
-                        for (int k = 0; k < connectionsCnt; k++)
-                        {
-                            uint targetNodeID = stream.ReadUInt32();
-                            byte targetBoxID = stream.ReadByte();
-
-                            hint.NodeA = targetNodeID;
-                            hint.BoxA = targetBoxID;
-
-                            tmpHints.Add(hint);
-                        }
-                    }
-
-                    // Meta
-                    node.Meta.Load(stream);
-
-                    OnControlLoaded(node, SurfaceNodeActions.Load);
-                }
-            }
-            else if (version == 7000)
             {
                 // Nodes count
                 int nodesCount = stream.ReadInt32();

Source/Editor/Utilities/Utils.cs

@@ -667,310 +667,6 @@ namespace FlaxEditor.Utilities
             stream.Write(value.Size.Y);
         }
 
-        internal static void ReadCommonValue(this BinaryReader stream, ref object value)
-        {
-            byte type = stream.ReadByte();
-
-            switch (type)
-            {
-            case 0: // CommonType::Bool:
-                value = stream.ReadByte() != 0;
-                break;
-            case 1: // CommonType::Integer:
-            {
-                value = stream.ReadInt32();
-            }
-                break;
-            case 2: // CommonType::Float:
-            {
-                value = stream.ReadSingle();
-            }
-                break;
-            case 3: // CommonType::Vector2:
-            {
-                value = stream.ReadFloat2();
-            }
-                break;
-            case 4: // CommonType::Vector3:
-            {
-                value = stream.ReadFloat3();
-            }
-                break;
-            case 5: // CommonType::Vector4:
-            {
-                value = stream.ReadFloat4();
-            }
-                break;
-            case 6: // CommonType::Color:
-            {
-                value = stream.ReadColor();
-            }
-                break;
-            case 7: // CommonType::Guid:
-            {
-                value = stream.ReadGuid();
-            }
-                break;
-            case 8: // CommonType::String:
-            {
-                int length = stream.ReadInt32();
-                if (length <= 0)
-                {
-                    value = string.Empty;
-                }
-                else
-                {
-                    var data = new char[length];
-                    for (int i = 0; i < length; i++)
-                    {
-                        var c = stream.ReadUInt16();
-                        data[i] = (char)(c ^ 953);
-                    }
-                    value = new string(data);
-                }
-                break;
-            }
-            case 9: // CommonType::Box:
-            {
-                value = new BoundingBox(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
-                                        new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()));
-            }
-                break;
-            case 10: // CommonType::Rotation:
-            {
-                value = stream.ReadQuaternion();
-            }
-                break;
-            case 11: // CommonType::Transform:
-            {
-                value = new Transform(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
-                                      new Quaternion(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
-                                      new Float3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()));
-            }
-                break;
-            case 12: // CommonType::Sphere:
-            {
-                value = new BoundingSphere(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
-                                           stream.ReadSingle());
-            }
-                break;
-            case 13: // CommonType::Rect:
-            {
-                value = new Rectangle(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle());
-            }
-                break;
-            case 15: // CommonType::Matrix
-            {
-                value = new Matrix(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(),
-                                   stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(),
-                                   stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(),
-                                   stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle());
-                break;
-            }
-            case 16: // CommonType::Blob
-            {
-                int length = stream.ReadInt32();
-                value = stream.ReadBytes(length);
-                break;
-            }
-            case 18: // CommonType::Ray
-            {
-                value = new Ray(new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()),
-                                new Vector3(stream.ReadSingle(), stream.ReadSingle(), stream.ReadSingle()));
-                break;
-            }
-            case 19: // CommonType::Int2
-            {
-                value = stream.ReadInt2();
-                break;
-            }
-            case 20: // CommonType::Int3
-            {
-                value = stream.ReadInt3();
-                break;
-            }
-            case 21: // CommonType::Int4
-            {
-                value = stream.ReadInt4();
-                break;
-            }
-            default: throw new SystemException();
-            }
-        }
-
-        internal static void WriteCommonValue(this BinaryWriter stream, object value)
-        {
-            if (value is bool asBool)
-            {
-                stream.Write((byte)0);
-                stream.Write((byte)(asBool ? 1 : 0));
-            }
-            else if (value is int asInt)
-            {
-                stream.Write((byte)1);
-                stream.Write(asInt);
-            }
-            else if (value is long asLong)
-            {
-                stream.Write((byte)1);
-                stream.Write((int)asLong);
-            }
-            else if (value is float asFloat)
-            {
-                stream.Write((byte)2);
-                stream.Write(asFloat);
-            }
-            else if (value is double asDouble)
-            {
-                stream.Write((byte)2);
-                stream.Write((float)asDouble);
-            }
-            else if (value is Vector2 asVector2)
-            {
-                stream.Write((byte)3);
-                stream.Write((float)asVector2.X);
-                stream.Write((float)asVector2.Y);
-            }
-            else if (value is Vector3 asVector3)
-            {
-                stream.Write((byte)4);
-                stream.Write((float)asVector3.X);
-                stream.Write((float)asVector3.Y);
-                stream.Write((float)asVector3.Z);
-            }
-            else if (value is Vector4 asVector4)
-            {
-                stream.Write((byte)5);
-                stream.Write((float)asVector4.X);
-                stream.Write((float)asVector4.Y);
-                stream.Write((float)asVector4.Z);
-                stream.Write((float)asVector4.W);
-            }
-            else if (value is Color asColor)
-            {
-                stream.Write((byte)6);
-                stream.Write(asColor.R);
-                stream.Write(asColor.G);
-                stream.Write(asColor.B);
-                stream.Write(asColor.A);
-            }
-            else if (value is Guid asGuid)
-            {
-                stream.Write((byte)7);
-                stream.WriteGuid(ref asGuid);
-            }
-            else if (value is string asString)
-            {
-                stream.Write((byte)8);
-                stream.Write(asString.Length);
-                for (int i = 0; i < asString.Length; i++)
-                    stream.Write((ushort)(asString[i] ^ -14));
-            }
-            else if (value is BoundingBox asBox)
-            {
-                stream.Write((byte)9);
-                stream.Write((float)asBox.Minimum.X);
-                stream.Write((float)asBox.Minimum.Y);
-                stream.Write((float)asBox.Minimum.Z);
-                stream.Write((float)asBox.Maximum.X);
-                stream.Write((float)asBox.Maximum.Y);
-                stream.Write((float)asBox.Maximum.Z);
-            }
-            else if (value is Quaternion asRotation)
-            {
-                stream.Write((byte)10);
-                stream.Write(asRotation.X);
-                stream.Write(asRotation.Y);
-                stream.Write(asRotation.Z);
-                stream.Write(asRotation.X);
-            }
-            else if (value is Transform asTransform)
-            {
-                stream.Write((byte)11);
-                stream.Write((float)asTransform.Translation.X);
-                stream.Write((float)asTransform.Translation.Y);
-                stream.Write((float)asTransform.Translation.Z);
-                stream.Write(asTransform.Orientation.X);
-                stream.Write(asTransform.Orientation.Y);
-                stream.Write(asTransform.Orientation.Z);
-                stream.Write(asTransform.Orientation.X);
-                stream.Write(asTransform.Scale.X);
-                stream.Write(asTransform.Scale.Y);
-                stream.Write(asTransform.Scale.Z);
-            }
-            else if (value is BoundingSphere asSphere)
-            {
-                stream.Write((byte)12);
-                stream.Write((float)asSphere.Center.X);
-                stream.Write((float)asSphere.Center.Y);
-                stream.Write((float)asSphere.Center.Z);
-                stream.Write((float)asSphere.Radius);
-            }
-            else if (value is Rectangle asRect)
-            {
-                stream.Write((byte)13);
-                stream.Write(asRect.Location.X);
-                stream.Write(asRect.Location.Y);
-                stream.Write(asRect.Size.X);
-                stream.Write(asRect.Size.Y);
-            }
-            else if (value is Matrix asMatrix)
-            {
-                stream.Write((byte)15);
-                stream.Write(asMatrix.M11);
-                stream.Write(asMatrix.M12);
-                stream.Write(asMatrix.M13);
-                stream.Write(asMatrix.M14);
-                stream.Write(asMatrix.M21);
-                stream.Write(asMatrix.M22);
-                stream.Write(asMatrix.M23);
-                stream.Write(asMatrix.M24);
-                stream.Write(asMatrix.M31);
-                stream.Write(asMatrix.M32);
-                stream.Write(asMatrix.M33);
-                stream.Write(asMatrix.M34);
-                stream.Write(asMatrix.M41);
-                stream.Write(asMatrix.M42);
-                stream.Write(asMatrix.M43);
-                stream.Write(asMatrix.M44);
-            }
-            else if (value is byte[] asBlob)
-            {
-                stream.Write((byte)16);
-                stream.Write(asBlob.Length);
-                stream.Write(asBlob);
-            }
-            else if (value is Ray asRay)
-            {
-                stream.Write((byte)18);
-                stream.Write((float)asRay.Position.X);
-                stream.Write((float)asRay.Position.Y);
-                stream.Write((float)asRay.Position.Z);
-                stream.Write((float)asRay.Direction.X);
-                stream.Write((float)asRay.Direction.Y);
-                stream.Write((float)asRay.Direction.Z);
-            }
-            else if (value is Int2 asInt2)
-            {
-                stream.Write((byte)19);
-                stream.Write(asInt2);
-            }
-            else if (value is Int3 asInt3)
-            {
-                stream.Write((byte)20);
-                stream.Write(asInt3);
-            }
-            else if (value is Int4 asInt4)
-            {
-                stream.Write((byte)21);
-                stream.Write(asInt4);
-            }
-            else
-            {
-                throw new NotSupportedException(string.Format("Invalid Common Value type {0}", value != null ? value.GetType().ToString() : "null"));
-            }
-        }
-
         /// <summary>
         /// Shows the source code window.
         /// </summary>

Source/Editor/Windows/GameCookerWindow.cs

@@ -52,6 +52,7 @@ namespace FlaxEditor.Windows
                 { PlatformType.PS5, new PS5() },
                 { PlatformType.Mac, new Mac() },
                 { PlatformType.iOS, new iOS() },
+                { PlatformType.Web, new Web() },
             };
 
             public BuildTabProxy(GameCookerWindow win, PlatformSelector platformSelector)
@@ -165,6 +166,7 @@ namespace FlaxEditor.Windows
                         case BuildPlatform.UWPx64:
                         case BuildPlatform.LinuxX64:
                         case BuildPlatform.AndroidARM64:
+                        case BuildPlatform.Web:
                             text += "\nUse Flax Launcher and download the required package.";
                             break;
 #endif
@@ -538,6 +540,11 @@ namespace FlaxEditor.Windows
                 protected override BuildPlatform BuildPlatform => BuildPlatform.iOSARM64;
             }
 
+            class Web : Platform
+            {
+                protected override BuildPlatform BuildPlatform => BuildPlatform.Web;
+            }
+
             class Editor : CustomEditor
             {
                 private PlatformType _platform;
@@ -592,6 +599,9 @@ namespace FlaxEditor.Windows
                         case PlatformType.iOS:
                             name = "iOS";
                             break;
+                        case PlatformType.Web:
+                            name = "Web";
+                            break;
                         default:
                             name = Utilities.Utils.GetPropertyNameUI(_platform.ToString());
                             break;

Source/Engine/Audio/Audio.Build.cs

@@ -60,6 +60,9 @@ public class Audio : EngineModule
         case TargetPlatform.iOS:
             useOpenAL = true;
             break;
+        case TargetPlatform.Web:
+            // TODO: audio playback on Web (OpenAL)
+            break;
         default: throw new InvalidPlatformException(options.Platform.Target);
         }
 

Source/Engine/Audio/AudioClip.cpp

@@ -194,6 +194,7 @@ bool AudioClip::ExtractData(Array<byte>& resultData, AudioDataInfo& resultDataIn
 
 bool AudioClip::ExtractDataFloat(Array<float>& resultData, AudioDataInfo& resultDataInfo)
 {
+#if COMPILE_WITH_AUDIO_TOOL
     // Extract PCM data
     Array<byte> data;
     if (ExtractDataRaw(data, resultDataInfo))
@@ -205,6 +206,9 @@ bool AudioClip::ExtractDataFloat(Array<float>& resultData, AudioDataInfo& result
     resultDataInfo.BitDepth = 32;
 
     return false;
+#else
+    return true;
+#endif
 }
 
 bool AudioClip::ExtractDataRaw(Array<byte>& resultData, AudioDataInfo& resultDataInfo)
@@ -475,6 +479,7 @@ bool AudioClip::WriteBuffer(int32 chunkIndex)
     }
     info.NumSamples = Math::AlignDown(data.Length() / bytesPerSample, info.NumChannels * bytesPerSample);
 
+#if COMPILE_WITH_AUDIO_TOOL
     // Convert to Mono if used as 3D source and backend doesn't support it
     if (Is3D() && info.NumChannels > 1 && EnumHasNoneFlags(AudioBackend::Features(), AudioBackend::FeatureFlags::SpatialMultiChannel))
     {
@@ -486,6 +491,7 @@ bool AudioClip::WriteBuffer(int32 chunkIndex)
         info.NumSamples = samplesPerChannel;
         data = Span<byte>(tmp2.Get(), tmp2.Count());
     }
+#endif
 
     // Write samples to the audio buffer (create one if missing)
     Locker.Lock(); // StreamingTask loads buffers without lock so do it here

Source/Engine/Content/Assets/Material.cpp

@@ -3,6 +3,7 @@
 #include "Material.h"
 #include "Engine/Core/Log.h"
 #include "Engine/Core/Types/DataContainer.h"
+#include "Engine/Content/Deprecated.h"
 #include "Engine/Content/Upgraders/ShaderAssetUpgrader.h"
 #include "Engine/Content/Factories/BinaryAssetFactory.h"
 #include "Engine/Graphics/GPUDevice.h"

Source/Engine/Content/Content.cpp

@@ -80,10 +80,14 @@ namespace
     // Loading assets
     THREADLOCAL LoadingThread* ThisLoadThread = nullptr;
     LoadingThread* MainLoadThread = nullptr;
+#if PLATFORM_THREADS_LIMIT > 1
     Array<LoadingThread*> LoadThreads;
     ConcurrentTaskQueue<ContentLoadTask> LoadTasks;
     ConditionVariable LoadTasksSignal;
     CriticalSection LoadTasksMutex;
+#else
+    Array<ContentLoadTask*> LoadTasks;
+#endif
 
     // Unloading assets
     Dictionary<Asset*, TimeSpan> UnloadQueue;
@@ -125,11 +129,12 @@ bool ContentService::Init()
     Cache.Init();
 
     // Create loading threads
+    MainLoadThread = New<LoadingThread>();
+    ThisLoadThread = MainLoadThread;
+#if PLATFORM_THREADS_LIMIT > 1
     const CPUInfo cpuInfo = Platform::GetCPUInfo();
     const int32 count = Math::Clamp(Math::CeilToInt(LOADING_THREAD_PER_LOGICAL_CORE * (float)cpuInfo.LogicalProcessorCount), 1, 12);
     LOG(Info, "Creating {0} content loading threads...", count);
-    MainLoadThread = New<LoadingThread>();
-    ThisLoadThread = MainLoadThread;
     LoadThreads.Resize(count);
     for (int32 i = 0; i < count; i++)
     {
@@ -142,6 +147,7 @@ bool ContentService::Init()
             return true;
         }
     }
+#endif
 
     return false;
 }
@@ -150,14 +156,29 @@ void ContentService::Update()
 {
     PROFILE_CPU();
 
-    ScopeLock lock(LoadedAssetsToInvokeLocker);
+#if PLATFORM_THREADS_LIMIT == 1
+    // Run content-streaming tasks on a main thread
+    if (LoadTasks.HasItems())
+    {
+        double timeLimit = 0.01; // 10ms
+        double startTime = Platform::GetTimeSeconds();
+        do
+        {
+            auto task = LoadTasks[0];
+            LoadTasks.RemoveAt(0);
+            MainLoadThread->Run(task);
+        } while (LoadTasks.HasItems() && Platform::GetTimeSeconds() - startTime < timeLimit);
+    }
+#endif
 
     // Broadcast `OnLoaded` events
+    LoadedAssetsToInvokeLocker.Lock();
     while (LoadedAssetsToInvoke.HasItems())
     {
         auto asset = LoadedAssetsToInvoke.Dequeue();
         asset->onLoaded_MainThread();
     }
+    LoadedAssetsToInvokeLocker.Unlock();
 }
 
 void ContentService::LateUpdate()
@@ -219,10 +240,12 @@ void ContentService::LateUpdate()
 
 void ContentService::BeforeExit()
 {
+#if PLATFORM_THREADS_LIMIT > 1
     // Signal threads to end work soon
     for (auto thread : LoadThreads)
         thread->NotifyExit();
     LoadTasksSignal.NotifyAll();
+#endif
 }
 
 void ContentService::Dispose()
@@ -251,6 +274,7 @@ void ContentService::Dispose()
     // NOW dispose graphics device - where there is no loaded assets at all
     Graphics::DisposeDevice();
 
+#if PLATFORM_THREADS_LIMIT > 1
     // Exit all load threads
     for (auto thread : LoadThreads)
         thread->NotifyExit();
@@ -258,12 +282,19 @@ void ContentService::Dispose()
     for (auto thread : LoadThreads)
         thread->Join();
     LoadThreads.ClearDelete();
+#endif
     Delete(MainLoadThread);
     MainLoadThread = nullptr;
     ThisLoadThread = nullptr;
 
+#if PLATFORM_THREADS_LIMIT > 1
     // Cancel all remaining tasks (no chance to execute them)
     LoadTasks.CancelAll();
+#else
+    for (auto* e : LoadTasks)
+        e->Cancel();
+    LoadTasks.Clear();
+#endif
 }
 
 IAssetFactory::Collection& IAssetFactory::Get()
@@ -329,6 +360,7 @@ String LoadingThread::ToString() const
 
 int32 LoadingThread::Run()
 {
+#if PLATFORM_THREADS_LIMIT > 1
     PROFILE_MEM(Content);
 #if USE_EDITOR && PLATFORM_WINDOWS
     // Initialize COM
@@ -366,6 +398,7 @@ int32 LoadingThread::Run()
     }
 
     ThisLoadThread = nullptr;
+#endif
     return 0;
 }
 
@@ -382,7 +415,9 @@ String ContentLoadTask::ToString() const
 void ContentLoadTask::Enqueue()
 {
     LoadTasks.Add(this);
+#if PLATFORM_THREADS_LIMIT > 1
     LoadTasksSignal.NotifyOne();
+#endif
 }
 
 bool ContentLoadTask::Run()
@@ -1137,6 +1172,7 @@ void Content::WaitForTask(ContentLoadTask* loadingTask, double timeoutInMillisec
 #define CHECK_CONDITIONS() (!Engine::ShouldExit() && (timeoutInSeconds <= 0.0 || Platform::GetTimeSeconds() - startTime < timeoutInSeconds))
         do
         {
+#if PLATFORM_THREADS_LIMIT > 1
             // Give opportunity for other threads to use the current core
             if (loopCounter == 0)
                 ; // First run is fast
@@ -1183,6 +1219,34 @@ void Content::WaitForTask(ContentLoadTask* loadingTask, double timeoutInMillisec
                 LoadTasks.enqueue_bulk(localQueue.Get(), localQueue.Count());
                 localQueue.Clear();
             }
+#else
+            // Try to execute content tasks
+            if (task->IsQueued() && CHECK_CONDITIONS() && !LoadTasks.Remove((ContentLoadTask*)task))
+            {
+                PROFILE_CPU_NAMED("Inline");
+                ZoneColor(0xffaaaaaa);
+                thread->Run((ContentLoadTask*)task);
+            }
+            while (!task->IsQueued() && CHECK_CONDITIONS() && LoadTasks.HasItems())
+            {
+                // Find a task that can be executed (some tasks may be waiting for other tasks to finish so they are not queued yet)
+                int32 index = 0;
+                for (int32 i = 0; i < LoadTasks.Count(); i++)
+                {
+                    if (LoadTasks[i]->GetContinueWithTask() == task)
+                    {
+                        index = i;
+                        break;
+                    }
+                }
+                ContentLoadTask* tmp = LoadTasks[index];
+                LoadTasks.RemoveAt(index);
+
+                PROFILE_CPU_NAMED("Inline");
+                ZoneColor(0xffaaaaaa);
+                thread->Run(tmp);
+            }
+#endif
 
             // Check if task is done
             if (task->IsEnded())

Source/Engine/Content/Loading/ContentLoadTask.h

@@ -5,14 +5,14 @@
 #include "Engine/Threading/Task.h"
 
 class Asset;
-class LoadingThread;
 
 /// <summary>
 /// Describes content loading task object.
 /// </summary>
 class ContentLoadTask : public Task
 {
-    friend LoadingThread;
+    friend class LoadingThread;
+    friend class ContentService;
 
 public:
     /// <summary>

Source/Engine/Content/Storage/FlaxStorage.cpp

@@ -286,13 +286,13 @@ FlaxStorage::LockData FlaxStorage::LockSafe()
 
 uint32 FlaxStorage::GetRefCount() const
 {
-    return (uint32)Platform::AtomicRead((int64*)&_refCount);
+    return (uint32)Platform::AtomicRead((intptr*)&_refCount);
 }
 
 bool FlaxStorage::ShouldDispose() const
 {
-    return Platform::AtomicRead((int64*)&_refCount) == 0 &&
+    return Platform::AtomicRead((intptr*)&_refCount) == 0 &&
-            Platform::AtomicRead((int64*)&_chunksLock) == 0 &&
+            Platform::AtomicRead((intptr*)&_chunksLock) == 0 &&
             Platform::GetTimeSeconds() - _lastRefLostTime >= 0.5; // TTL in seconds
 }
 

Source/Engine/Content/Storage/FlaxStorage.h

@@ -87,10 +87,10 @@ public:
 
 protected:
     // State
-    int64 _refCount = 0;
+    intptr _refCount = 0;
-    int64 _chunksLock = 0;
+    intptr _chunksLock = 0;
-    int64 _files = 0;
+    intptr _files = 0;
-    int64 _isUnloadingData = 0;
+    intptr _isUnloadingData = 0;
     double _lastRefLostTime;
     CriticalSection _loadLocker;
 

Source/Engine/Core/Compiler.h

@@ -111,6 +111,10 @@
 #define _DEPRECATED(_0, _1, LASTARG, ...) LASTARG
 #define DEPRECATED(...) _DEPRECATED(, ##__VA_ARGS__, _DEPRECATED_1(__VA_ARGS__), _DEPRECATED_0())
 
+#if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
+#define HAS_EXCEPTIONS 1
+#endif
+
 // C++ 17
 #if __cplusplus >= 201703L
 #define IF_CONSTEXPR constexpr

Source/Engine/Core/Config/GameSettings.cpp

@@ -95,6 +95,8 @@ IMPLEMENT_ENGINE_SETTINGS_GETTER(SwitchPlatformSettings, SwitchPlatform);
 IMPLEMENT_ENGINE_SETTINGS_GETTER(MacPlatformSettings, MacPlatform);
 #elif PLATFORM_IOS
 IMPLEMENT_ENGINE_SETTINGS_GETTER(iOSPlatformSettings, iOSPlatform);
+#elif PLATFORM_WEB
+IMPLEMENT_ENGINE_SETTINGS_GETTER(WebPlatformSettings, WebPlatform);
 #else
 #error Unknown platform
 #endif
@@ -280,6 +282,7 @@ void GameSettings::Deserialize(DeserializeStream& stream, ISerializeModifier* mo
     DESERIALIZE(PS5Platform);
     DESERIALIZE(MacPlatform);
     DESERIALIZE(iOSPlatform);
+    DESERIALIZE(WebPlatform);
 }
 
 #if USE_EDITOR

Source/Engine/Core/Config/GameSettings.cs

@@ -210,6 +210,14 @@ namespace FlaxEditor.Content.Settings
         public JsonAsset iOSPlatform;
 #endif
 
+#if FLAX_EDITOR || PLATFORM_WEB
+        /// <summary>
+        /// Reference to <see cref="WebPlatformSettings"/> asset. Used to apply configuration on Web platform.
+        /// </summary>
+        [EditorOrder(2110), EditorDisplay("Platform Settings", "Web"), AssetReference(typeof(WebPlatformSettings), true), Tooltip("Reference to Web Platform Settings asset")]
+        public JsonAsset WebPlatform;
+#endif
+
         /// <summary>
         /// Gets the absolute path to the game settings asset file.
         /// </summary>
@@ -345,6 +353,10 @@ namespace FlaxEditor.Content.Settings
             if (type == typeof(iOSPlatformSettings))
                 return Load<iOSPlatformSettings>(gameSettings.iOSPlatform) as T;
 #endif
+#if FLAX_EDITOR || PLATFORM_WEB
+            if (type == typeof(WebPlatformSettings))
+                return Load<WebPlatformSettings>(gameSettings.WebPlatform) as T;
+#endif
 
             if (gameSettings.CustomSettings != null)
             {
@@ -443,6 +455,10 @@ namespace FlaxEditor.Content.Settings
             if (type == typeof(iOSPlatformSettings))
                 return gameSettings.iOSPlatform;
 #endif
+#if FLAX_EDITOR || PLATFORM_WEB
+            if (type == typeof(WebPlatformSettings))
+                return gameSettings.WebPlatform;
+#endif
 
             if (gameSettings.CustomSettings != null)
             {
@@ -557,6 +573,8 @@ namespace FlaxEditor.Content.Settings
                 return SaveAsset(gameSettings, ref gameSettings.MacPlatform, obj);
             if (type == typeof(iOSPlatformSettings))
                 return SaveAsset(gameSettings, ref gameSettings.iOSPlatform, obj);
+            if (type == typeof(WebPlatformSettings))
+                return SaveAsset(gameSettings, ref gameSettings.WebPlatform, obj);
 
             return true;
         }

Source/Engine/Core/Config/GameSettings.h

@@ -90,6 +90,7 @@ public:
     Guid PS5Platform;
     Guid MacPlatform;
     Guid iOSPlatform;
+    Guid WebPlatform;
 
 public:
     /// <summary>

Source/Engine/Core/Config/PlatformSettings.h

@@ -38,3 +38,6 @@
 #if PLATFORM_IOS
 #include "Engine/Platform/iOS/iOSPlatformSettings.h"
 #endif
+#if PLATFORM_WEB
+#include "Engine/Platform/Web/WebPlatformSettings.h"
+#endif

Source/Engine/Core/Log.cpp

@@ -17,7 +17,7 @@
 #endif
 #include <iostream>
 
-#define LOG_ENABLE_FILE (!PLATFORM_SWITCH)
+#define LOG_ENABLE_FILE (!PLATFORM_SWITCH && !PLATFORM_WEB)
 #define LOG_ENABLE_WINDOWS_SINGLE_NEW_LINE_CHAR (PLATFORM_WINDOWS && PLATFORM_DESKTOP && (USE_EDITOR || !BUILD_RELEASE))
 
 namespace

Source/Engine/Core/Math/Mathd.h

@@ -2,8 +2,7 @@
 
 #pragma once
 
-#include "Engine/Core/Types/BaseTypes.h"
+#include "Math.h"
-#include <math.h>
 
 namespace Math
 {

Source/Engine/Core/Math/Vector4.h

@@ -153,6 +153,12 @@ public:
         return Math::IsOne(X) && Math::IsOne(Y) && Math::IsOne(Z) && Math::IsOne(W);
     }
 
+    // Calculates the length of the vector.
+    T Length() const
+    {
+        return Math::Sqrt(X * X + Y * Y + Z * Z + W * W);
+    }
+
     /// <summary>
     /// Returns the average arithmetic of all the components.
     /// </summary>

Source/Engine/Core/Memory/Allocation.h

@@ -58,7 +58,7 @@ public:
     typedef void* Tag;
 
     template<typename T>
-    class alignas(sizeof(void*)) Data
+    class alignas(uint64) Data
     {
     private:
         byte _data[Capacity * sizeof(T)];
@@ -200,13 +200,13 @@ public:
     typedef void* Tag;
 
     template<typename T>
-    class alignas(sizeof(void*)) Data
+    class alignas(sizeof(uint64)) Data
     {
     private:
         typedef typename FallbackAllocation::template Data<T> FallbackData;
 
         bool _useFallback = false;
-        alignas(sizeof(void*)) byte _data[Capacity * sizeof(T)];
+        alignas(sizeof(uint64)) byte _data[Capacity * sizeof(T)];
         FallbackData _fallback;
 
     public:

Source/Engine/Core/Types/CommonValue.cpp

@@ -1,182 +0,0 @@
-// Copyright (c) Wojciech Figat. All rights reserved.
-
-#include "CommonValue.h"
-#include "Engine/Scripting/ScriptingObject.h"
-
-PRAGMA_DISABLE_DEPRECATION_WARNINGS
-
-const CommonValue CommonValue::Zero(0.0f);
-const CommonValue CommonValue::One(1.0f);
-const CommonValue CommonValue::Null(static_cast<void*>(nullptr));
-const CommonValue CommonValue::False(false);
-const CommonValue CommonValue::True(true);
-
-const Char* ToString(CommonType value)
-{
-    const Char* result;
-    switch (value)
-    {
-    case CommonType::Bool:
-        result = TEXT("Bool");
-        break;
-    case CommonType::Integer:
-        result = TEXT("Integer");
-        break;
-    case CommonType::Float:
-        result = TEXT("Float");
-        break;
-    case CommonType::Vector2:
-        result = TEXT("Vector2");
-        break;
-    case CommonType::Vector3:
-        result = TEXT("Vector3");
-        break;
-    case CommonType::Vector4:
-        result = TEXT("Vector4");
-        break;
-    case CommonType::Color:
-        result = TEXT("Color");
-        break;
-    case CommonType::Guid:
-        result = TEXT("Guid");
-        break;
-    case CommonType::String:
-        result = TEXT("String");
-        break;
-    case CommonType::Box:
-        result = TEXT("Box");
-        break;
-    case CommonType::Rotation:
-        result = TEXT("Rotation");
-        break;
-    case CommonType::Transform:
-        result = TEXT("Transform");
-        break;
-    case CommonType::Sphere:
-        result = TEXT("Sphere");
-        break;
-    case CommonType::Rectangle:
-        result = TEXT("Rectangle");
-        break;
-    case CommonType::Pointer:
-        result = TEXT("Pointer");
-        break;
-    case CommonType::Matrix:
-        result = TEXT("Matrix");
-        break;
-    case CommonType::Blob:
-        result = TEXT("Blob");
-        break;
-    case CommonType::Object:
-        result = TEXT("Object");
-        break;
-    case CommonType::Ray:
-        result = TEXT("Ray");
-        break;
-    default:
-        result = TEXT("");
-        break;
-    }
-    return result;
-}
-
-bool CommonValue::NearEqual(const CommonValue& a, const CommonValue& b, float epsilon)
-{
-    ASSERT(a.Type == b.Type);
-    switch (a.Type)
-    {
-    case CommonType::Bool:
-        return a.AsBool == b.AsBool;
-    case CommonType::Integer:
-        return Math::Abs(a.AsInteger - b.AsInteger) < epsilon;
-    case CommonType::Float:
-        return Math::Abs(a.AsFloat - b.AsFloat) < epsilon;
-    case CommonType::Vector2:
-        return Float2::NearEqual(a.AsVector2, b.AsVector2, epsilon);
-    case CommonType::Vector3:
-        return Float3::NearEqual(a.AsVector3, b.AsVector3, epsilon);
-    case CommonType::Vector4:
-        return Float4::NearEqual(a.AsVector4, b.AsVector4, epsilon);
-    case CommonType::Color:
-        return Color::NearEqual(a.AsColor, b.AsColor, epsilon);
-    case CommonType::Guid:
-        return a.AsGuid == b.AsGuid;
-    case CommonType::String:
-        return StringUtils::Compare(a.AsString, b.AsString) > 0;
-    case CommonType::Box:
-        return BoundingBox::NearEqual(a.AsBox, b.AsBox, epsilon);
-    case CommonType::Rotation:
-        return Quaternion::NearEqual(a.AsRotation, b.AsRotation, epsilon);
-    case CommonType::Transform:
-        return Transform::NearEqual(a.AsTransform, b.AsTransform, epsilon);
-    case CommonType::Sphere:
-        return BoundingSphere::NearEqual(a.AsSphere, b.AsSphere, epsilon);
-    case CommonType::Rectangle:
-        return Rectangle::NearEqual(a.AsRectangle, b.AsRectangle, epsilon);
-    case CommonType::Ray:
-        return Ray::NearEqual(a.AsRay, b.AsRay, epsilon);
-    case CommonType::Pointer:
-    case CommonType::Object:
-        return a.AsPointer == b.AsPointer;
-    case CommonType::Matrix:
-        return a.AsMatrix == b.AsMatrix;
-    case CommonType::Blob:
-        return a.AsBlob.Length == b.AsBlob.Length;
-    default: CRASH;
-        return false;
-    }
-}
-
-CommonValue CommonValue::Lerp(const CommonValue& a, const CommonValue& b, float alpha)
-{
-    ASSERT(a.Type == b.Type);
-    switch (a.Type)
-    {
-    case CommonType::Bool:
-        return alpha < 0.5f ? a : b;
-    case CommonType::Integer:
-        return Math::Lerp(a.AsInteger, b.AsInteger, alpha);
-    case CommonType::Float:
-        return Math::Lerp(a.AsFloat, b.AsFloat, alpha);
-    case CommonType::Vector2:
-        return Float2::Lerp(a.AsVector2, b.AsVector2, alpha);
-    case CommonType::Vector3:
-        return Float3::Lerp(a.AsVector3, b.AsVector3, alpha);
-    case CommonType::Vector4:
-        return Float4::Lerp(a.AsVector4, b.AsVector4, alpha);
-    case CommonType::Color:
-        return Color::Lerp(a.AsColor, b.AsColor, alpha);
-    case CommonType::Box:
-        return BoundingBox(Vector3::Lerp(a.AsBox.Minimum, b.AsBox.Minimum, alpha), Vector3::Lerp(a.AsBox.Maximum, b.AsBox.Maximum, alpha));
-    case CommonType::Rotation:
-        return Quaternion::Lerp(a.AsRotation, b.AsRotation, alpha);
-    case CommonType::Transform:
-        return Transform::Lerp(a.AsTransform, b.AsTransform, alpha);
-    case CommonType::Sphere:
-        return BoundingSphere(Vector3::Lerp(a.AsSphere.Center, b.AsSphere.Center, alpha), Math::Lerp(a.AsSphere.Radius, b.AsSphere.Radius, alpha));
-    case CommonType::Rectangle:
-        return Rectangle(Float2::Lerp(a.AsRectangle.Location, b.AsRectangle.Location, alpha), Float2::Lerp(a.AsRectangle.Size, b.AsRectangle.Size, alpha));
-    case CommonType::Ray:
-        return Ray(Vector3::Lerp(a.AsRay.Position, b.AsRay.Position, alpha), Vector3::Normalize(Vector3::Lerp(a.AsRay.Direction, b.AsRay.Direction, alpha)));
-    default:
-        return a;
-    }
-}
-
-Guid CommonValue::GetObjectId() const
-{
-    ASSERT(Type == CommonType::Object);
-    return AsObject ? AsObject->GetID() : Guid::Empty;
-}
-
-void CommonValue::LinkObject()
-{
-    AsObject->Deleted.Bind<CommonValue, &CommonValue::OnObjectDeleted>(this);
-}
-
-void CommonValue::UnlinkObject()
-{
-    AsObject->Deleted.Unbind<CommonValue, &CommonValue::OnObjectDeleted>(this);
-}
-
-PRAGMA_ENABLE_DEPRECATION_WARNINGS

Source/Engine/Core/Types/Variant.cpp

@@ -1,7 +1,6 @@
 // Copyright (c) Wojciech Figat. All rights reserved.
 
 #include "Variant.h"
-#include "CommonValue.h"
 #include "Engine/Core/Collections/HashFunctions.h"
 #include "Engine/Core/Collections/Dictionary.h"
 #include "Engine/Content/Asset.h"
@@ -964,78 +963,6 @@ Variant::Variant(const Span<byte>& v)
     }
 }
 
-PRAGMA_DISABLE_DEPRECATION_WARNINGS
-#include "Engine/Content/Deprecated.h"
-Variant::Variant(const CommonValue& value)
-    : Variant()
-{
-    // [Deprecated on 31.07.2020, expires on 31.07.2022]
-    MARK_CONTENT_DEPRECATED();
-    switch (value.Type)
-    {
-    case CommonType::Bool:
-        *this = value.AsBool;
-        break;
-    case CommonType::Integer:
-        *this = value.AsInteger;
-        break;
-    case CommonType::Float:
-        *this = value.AsFloat;
-        break;
-    case CommonType::Vector2:
-        *this = value.AsVector2;
-        break;
-    case CommonType::Vector3:
-        *this = value.AsVector3;
-        break;
-    case CommonType::Vector4:
-        *this = value.AsVector4;
-        break;
-    case CommonType::Color:
-        *this = value.AsColor;
-        break;
-    case CommonType::Guid:
-        *this = value.AsGuid;
-        break;
-    case CommonType::String:
-        SetString(StringView(value.AsString));
-        break;
-    case CommonType::Box:
-        *this = Variant(value.AsBox);
-        break;
-    case CommonType::Rotation:
-        *this = value.AsRotation;
-        break;
-    case CommonType::Transform:
-        *this = Variant(value.AsTransform);
-        break;
-    case CommonType::Sphere:
-        *this = value.AsSphere;
-        break;
-    case CommonType::Rectangle:
-        *this = value.AsRectangle;
-        break;
-    case CommonType::Pointer:
-        *this = value.AsPointer;
-        break;
-    case CommonType::Matrix:
-        *this = Variant(value.AsMatrix);
-        break;
-    case CommonType::Blob:
-        SetBlob(value.AsBlob.Data, value.AsBlob.Length);
-        break;
-    case CommonType::Object:
-        SetObject(value.AsObject);
-        break;
-    case CommonType::Ray:
-        *this = Variant(value.AsRay);
-        break;
-    default:
-        CRASH;
-    }
-}
-PRAGMA_ENABLE_DEPRECATION_WARNINGS
-
 Variant::~Variant()
 {
     switch (Type.Type)

Source/Engine/Core/Types/Variant.h

@@ -7,7 +7,6 @@
 
 class Asset;
 struct Transform;
-struct CommonValue;
 template<typename T>
 class AssetReference;
 struct ScriptingTypeHandle;
@@ -264,7 +263,6 @@ public:
     explicit Variant(Dictionary<Variant, Variant, HeapAllocation>&& v);
     explicit Variant(const Dictionary<Variant, Variant, HeapAllocation>& v);
     explicit Variant(const Span<byte>& v);
-    explicit Variant(const CommonValue& v);
 
     template<typename T>
     Variant(const class AssetReference<T>& v)

Source/Engine/Engine/Game.h

@@ -26,6 +26,8 @@
 #include "Mac/MacGame.h"
 #elif PLATFORM_IOS
 #include "iOS/iOSGame.h"
+#elif PLATFORM_WEB
+#include "Web/WebGame.h"
 #else
 #error Missing Game implementation!
 #endif

Source/Engine/Engine/GameplayGlobals.cpp

@@ -2,60 +2,12 @@
 
 #include "GameplayGlobals.h"
 #include "Engine/Core/Log.h"
-#include "Engine/Core/Types/CommonValue.h"
 #include "Engine/Serialization/MemoryReadStream.h"
 #include "Engine/Serialization/MemoryWriteStream.h"
 #include "Engine/Content/Factories/BinaryAssetFactory.h"
-#include "Engine/Content/Upgraders/BinaryAssetUpgrader.h"
 #include "Engine/Threading/Threading.h"
 
-#if USE_EDITOR
+REGISTER_BINARY_ASSET(GameplayGlobals, "FlaxEngine.GameplayGlobals", true);
-
-class GameplayGlobalsUpgrader : public BinaryAssetUpgrader
-{
-public:
-    GameplayGlobalsUpgrader()
-    {
-        const Upgrader upgraders[] =
-        {
-            { 1, 2, &Upgrade_1_To_2 }, // [Deprecated on 31.07.2020, expires on 31.07.2022]
-        };
-        setup(upgraders, ARRAY_COUNT(upgraders));
-    }
-
-private:
-    static bool Upgrade_1_To_2(AssetMigrationContext& context)
-    {
-        // [Deprecated on 31.07.2020, expires on 31.07.2022]
-        PRAGMA_DISABLE_DEPRECATION_WARNINGS
-        ASSERT(context.Input.SerializedVersion == 1 && context.Output.SerializedVersion == 2);
-        if (context.AllocateChunk(0))
-            return true;
-        auto& data = context.Input.Header.Chunks[0]->Data;
-        MemoryReadStream stream(data.Get(), data.Length());
-        MemoryWriteStream output;
-        int32 count;
-        stream.ReadInt32(&count);
-        output.WriteInt32(count);
-        String name;
-        for (int32 i = 0; i < count; i++)
-        {
-            stream.Read(name, 71);
-            CommonValue commonValue;
-            stream.ReadCommonValue(&commonValue);
-            Variant variant(commonValue);
-            output.WriteVariant(variant);
-        }
-        context.Output.Header.Chunks[0]->Data.Copy(output.GetHandle(), output.GetPosition());
-        PRAGMA_ENABLE_DEPRECATION_WARNINGS
-
-        return false;
-    }
-};
-
-#endif
-
-REGISTER_BINARY_ASSET_WITH_UPGRADER(GameplayGlobals, "FlaxEngine.GameplayGlobals", GameplayGlobalsUpgrader, true);
 
 GameplayGlobals::GameplayGlobals(const SpawnParams& params, const AssetInfo* info)
     : BinaryAsset(params, info)

Source/Engine/Engine/Web/WebGame.h

@@ -0,0 +1,19 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if PLATFORM_WEB
+
+#include "../Base/GameBase.h"
+
+/// <summary>
+/// The game class implementation for Web platform.
+/// </summary>
+/// <seealso cref="Game" />
+class WebGame : public GameBase
+{
+};
+
+typedef WebGame Game;
+
+#endif

Source/Engine/Graphics/Config.h

@@ -45,7 +45,9 @@
 #define GPU_USE_WINDOW_SRV 1
 
 // True if allow graphics profile events and markers
+#ifndef GPU_ALLOW_PROFILE_EVENTS
 #define GPU_ALLOW_PROFILE_EVENTS (!BUILD_RELEASE)
+#endif
 
 // True if allow hardware tessellation shaders (Hull and Domain shaders)
 #ifndef GPU_ALLOW_TESSELLATION_SHADERS
@@ -58,7 +60,9 @@
 #endif
 
 // Enable/disable creating GPU resources on separate threads (otherwise only the main thread can be used)
+#ifndef GPU_ENABLE_ASYNC_RESOURCES_CREATION
 #define GPU_ENABLE_ASYNC_RESOURCES_CREATION 1
+#endif
 
 // Enable/disable force shaders recompilation
 #define GPU_FORCE_RECOMPILE_SHADERS 0

Source/Engine/Graphics/Graphics.Build.cs

@@ -96,6 +96,10 @@ public class Graphics : EngineModule
             else
                 Log.WarningOnce(string.Format("Building for {0} without Vulkan rendering backend (Vulkan SDK is missing)", options.Platform.Target), ref _logMissingVulkanSDK);
             break;
+        case TargetPlatform.Web:
+            options.PrivateDependencies.Add("GraphicsDeviceNull");
+            // TODO: add WebGPU
+            break;
         default: throw new InvalidPlatformException(options.Platform.Target);
         }
 

Source/Engine/Graphics/Models/SkeletonData.h

@@ -74,7 +74,7 @@ struct TIsPODType<SkeletonBone>
 class FLAXENGINE_API SkeletonData
 {
 private:
-    mutable volatile int64 _dirty = 1;
+    mutable volatile intptr _dirty = 1;
     mutable Array<Matrix> _cachedPose;
 
 public:

Source/Engine/Graphics/RenderBuffers.cpp

@@ -127,7 +127,7 @@ GPUTexture* RenderBuffers::RequestHiZ(GPUContext* context, bool fullRes, int32 m
 
     // Allocate or resize buffer (with full mip-chain)
     // TODO: migrate to inverse depth and try using r16 again as default (should have no artifacts anymore)
-    auto format = PLATFORM_ANDROID || PLATFORM_IOS || PLATFORM_SWITCH ? PixelFormat::R16_UInt : PixelFormat::R32_Float;
+    auto format = PLATFORM_WEB || PLATFORM_ANDROID || PLATFORM_IOS || PLATFORM_SWITCH ? PixelFormat::R16_UInt : PixelFormat::R32_Float;
     auto width = fullRes ? _width : Math::Max(_width >> 1, 1);
     auto height = fullRes ? _height : Math::Max(_height >> 1, 1);
     auto desc = GPUTextureDescription::New2D(width, height, mipLevels, format, GPUTextureFlags::ShaderResource);

Source/Engine/Level/Level.cpp

@@ -428,7 +428,9 @@ void LevelService::LateFixedUpdate()
 
 void LevelService::Dispose()
 {
+    // End scene actions
     ScopeLock lock(_sceneActionsLocker);
+    _sceneActions.ClearDelete();
 
     // Unload scenes
     unloadScenes();

Source/Engine/Level/Scene/SceneRendering.cpp

@@ -88,6 +88,7 @@ void SceneRendering::Draw(RenderContextBatch& renderContextBatch, DrawCategory c
 
     // Draw all visual components
     _drawListIndex = -1;
+#if PLATFORM_THREADS_LIMIT > 1
     if (_drawListSize >= 64 && category == SceneDrawAsync && renderContextBatch.EnableAsync)
     {
         // Run in async via Job System
@@ -97,6 +98,7 @@ void SceneRendering::Draw(RenderContextBatch& renderContextBatch, DrawCategory c
         renderContextBatch.WaitLabels.Add(waitLabel);
     }
     else
+#endif
     {
         // Scene is small so draw on a main-thread
         DrawActorsJob(0);

Source/Engine/Localization/Localization.cpp

@@ -262,6 +262,7 @@ void LocalizationService::OnLocalizationChanged()
             localeName[currentCulture.Length() + 5] = '8';
             localeName[currentCulture.Length() + 6] = 0;
         }
+#if HAS_EXCEPTIONS
         try
         {
             std::locale::global(std::locale(localeName));
@@ -272,6 +273,9 @@ void LocalizationService::OnLocalizationChanged()
         catch (...)
         {
         }
+#else
+        std::locale::global(std::locale(localeName));
+#endif
     }
 #endif
 

Source/Engine/Main/Main.Build.cs

@@ -74,6 +74,9 @@ public class Main : EngineModule
         case TargetPlatform.iOS:
             options.SourcePaths.Add(Path.Combine(FolderPath, "Default"));
             break;
+        case TargetPlatform.Web:
+            options.SourcePaths.Add(Path.Combine(FolderPath, "Web"));
+            break;
         default: throw new InvalidPlatformException(options.Platform.Target);
         }
     }

Source/Engine/Main/Web/main.cpp

@@ -0,0 +1,12 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#if PLATFORM_WEB
+
+#include "Engine/Engine/Engine.h"
+
+int main()
+{
+    return Engine::Main(TEXT(""));
+}
+
+#endif

Source/Engine/Networking/NetworkConfig.h

@@ -6,23 +6,6 @@
 
 class ScriptingObject;
 
-/// <summary>
-/// Network driver implementations enum.
-/// [Deprecated in v1.3]
-/// </summary>
-API_ENUM(Namespace="FlaxEngine.Networking") enum class DEPRECATED() NetworkDriverType
-{
-    /// <summary>
-    /// Invalid network driver implementation.
-    /// </summary>
-    Undefined = 0,
-
-    /// <summary>
-    /// ENet library based network driver implementation.
-    /// </summary>
-    ENet
-};
-
 /// <summary>
 /// Low-level network configuration structure. Provides settings for the network driver and all internal components.
 /// </summary>
@@ -30,14 +13,6 @@ API_STRUCT(Namespace="FlaxEngine.Networking") struct FLAXENGINE_API NetworkConfi
 {
     DECLARE_SCRIPTING_TYPE_MINIMAL(NetworkConfig);
 
-    /// <summary>
-    /// The network driver that will be used to create the peer.
-    /// To allow two peers to connect, they must use the same host.
-    /// [Deprecated in v1.3]
-    /// </summary>
-    API_FIELD()
-    DEPRECATED("Use NetworkDriver field instead") NetworkDriverType NetworkDriverType;
-
     /// <summary>
     /// The network driver instance (implements INetworkDriver) that will be used to create and manage the peer, send and receive messages.
     /// </summary>
@@ -81,15 +56,4 @@ API_STRUCT(Namespace="FlaxEngine.Networking") struct FLAXENGINE_API NetworkConfi
     /// </remarks>
     API_FIELD()
     uint16 MessagePoolSize = 2048;
-
-    // Ignore deprecation warnings in defaults
-    PRAGMA_DISABLE_DEPRECATION_WARNINGS
-    NetworkConfig()
-    {
-        NetworkDriverType = NetworkDriverType::ENet;
-    }
-    NetworkConfig(const NetworkConfig& other) = default;
-    NetworkConfig(NetworkConfig&& other) = default;
-    NetworkConfig& operator=(const NetworkConfig& other) = default;
-    PRAGMA_ENABLE_DEPRECATION_WARNINGS
 };

Source/Engine/Networking/NetworkPeer.cpp

@@ -22,10 +22,6 @@ bool NetworkPeer::Initialize(const NetworkConfig& config)
         return true;
 
     Config = config;
-    PRAGMA_DISABLE_DEPRECATION_WARNINGS
-    if (Config.NetworkDriver == nullptr && Config.NetworkDriverType == NetworkDriverType::ENet)
-        Config.NetworkDriver = New<ENetDriver>();
-    PRAGMA_ENABLE_DEPRECATION_WARNINGS
 
     if (Config.NetworkDriver == nullptr)
     {

Source/Engine/Particles/Graph/GPU/ParticleEmitterGraph.GPU.cpp

@@ -3,10 +3,10 @@
 #if COMPILE_WITH_PARTICLE_GPU_GRAPH
 
 #include "ParticleEmitterGraph.GPU.h"
+#include "Engine/Core/Math/Matrix.h"
 #include "Engine/Serialization/FileReadStream.h"
 #include "Engine/Visject/ShaderGraphUtilities.h"
 #include "Engine/Engine/Globals.h"
-#include "Engine/Core/Types/CommonValue.h"
 
 /// <summary>
 /// GPU particles shader source code template has special marks for generated code.

Source/Engine/Particles/ParticleEffect.cpp

@@ -2,7 +2,6 @@
 
 #include "ParticleEffect.h"
 #include "Particles.h"
-#include "Engine/Core/Types/CommonValue.h"
 #include "Engine/Content/Deprecated.h"
 #include "Engine/Serialization/JsonTools.h"
 #include "Engine/Serialization/Serialization.h"
@@ -728,86 +727,39 @@ void ParticleEffect::Deserialize(DeserializeStream& stream, ISerializeModifier*
     const auto overridesMember = stream.FindMember("Overrides");
     if (overridesMember != stream.MemberEnd())
     {
-        // [Deprecated on 25.11.2018, expires on 25.11.2022]
+        const auto& overrides = overridesMember->value;
-        if (modifier->EngineBuild < 6197)
+        CHECK(overrides.IsArray());
+        _parametersOverrides.EnsureCapacity(_parametersOverrides.Count() + overrides.Size());
+        for (rapidjson::SizeType i = 0; i < overrides.Size(); i++)
         {
-            PRAGMA_DISABLE_DEPRECATION_WARNINGS
+            auto& o = (DeserializeStream&)overrides[i];
-            MARK_CONTENT_DEPRECATED();
+            const String trackName = JsonTools::GetString(o, "Track");
-            const auto& overrides = overridesMember->value;
+            const Guid id = JsonTools::GetGuid(o, "Id");
-            ASSERT(overrides.IsArray());
+            ParameterOverride* e = nullptr;
-            _parametersOverrides.EnsureCapacity(_parametersOverrides.Count() + overrides.Size());
+            for (auto& q : _parametersOverrides)
-            for (rapidjson::SizeType i = 0; i < overrides.Size(); i++)
             {
-                const auto& o = (DeserializeStream&)overrides[i];
+                if (q.Id == id && q.Track == trackName)
-                const String trackName = JsonTools::GetString(o, "Track");
-                const Guid id = JsonTools::GetGuid(o, "Id");
-                ParameterOverride* e = nullptr;
-                for (auto& q : _parametersOverrides)
                 {
-                    if (q.Id == id && q.Track == trackName)
+                    e = &q;
-                    {
+                    break;
-                        e = &q;
-                        break;
-                    }
-                }
-                if (e)
-                {
-                    // Update overriden parameter value
-                    CommonValue value;
-                    auto mValue = SERIALIZE_FIND_MEMBER(o, "Value");
-                    if (mValue != o.MemberEnd())
-                        e->Value = Variant(JsonTools::GetCommonValue(mValue->value));
-                }
-                else
-                {
-                    // Add parameter override
-                    auto& p = _parametersOverrides.AddOne();
-                    p.Track = trackName;
-                    p.Id = id;
-                    CommonValue value;
-                    auto mValue = SERIALIZE_FIND_MEMBER(o, "Value");
-                    if (mValue != o.MemberEnd())
-                        p.Value = Variant(JsonTools::GetCommonValue(mValue->value));
                 }
             }
-            PRAGMA_ENABLE_DEPRECATION_WARNINGS
+            if (e)
-        }
-        else
-        {
-            const auto& overrides = overridesMember->value;
-            ASSERT(overrides.IsArray());
-            _parametersOverrides.EnsureCapacity(_parametersOverrides.Count() + overrides.Size());
-            for (rapidjson::SizeType i = 0; i < overrides.Size(); i++)
             {
-                auto& o = (DeserializeStream&)overrides[i];
+                // Update overriden parameter value
-                const String trackName = JsonTools::GetString(o, "Track");
+                const auto mValue = SERIALIZE_FIND_MEMBER(o, "Value");
-                const Guid id = JsonTools::GetGuid(o, "Id");
+                if (mValue != stream.MemberEnd())
-                ParameterOverride* e = nullptr;
+                    Serialization::Deserialize(mValue->value, e->Value, modifier);
-                for (auto& q : _parametersOverrides)
+            }
-                {
+            else
-                    if (q.Id == id && q.Track == trackName)
+            {
-                    {
+                // Add parameter override
-                        e = &q;
+                auto& p = _parametersOverrides.AddOne();
-                        break;
+                p.Track = trackName;
-                    }
+                p.Id = id;
-                }
+                const auto mValue = SERIALIZE_FIND_MEMBER(o, "Value");
-                if (e)
+                if (mValue != stream.MemberEnd())
-                {
+                    Serialization::Deserialize(mValue->value, p.Value, modifier);
-                    // Update overriden parameter value
-                    const auto mValue = SERIALIZE_FIND_MEMBER(o, "Value");
-                    if (mValue != stream.MemberEnd())
-                        Serialization::Deserialize(mValue->value, e->Value, modifier);
-                }
-                else
-                {
-                    // Add parameter override
-                    auto& p = _parametersOverrides.AddOne();
-                    p.Track = trackName;
-                    p.Id = id;
-                    const auto mValue = SERIALIZE_FIND_MEMBER(o, "Value");
-                    if (mValue != stream.MemberEnd())
-                        Serialization::Deserialize(mValue->value, p.Value, modifier);
-                }
             }
         }
     }

Source/Engine/Particles/ParticleEmitter.cpp

@@ -4,6 +4,7 @@
 #include "ParticleSystem.h"
 #include "ParticleEffect.h"
 #include "Particles.h"
+#include "Engine/Content/Deprecated.h"
 #include "Engine/Content/Factories/BinaryAssetFactory.h"
 #include "Engine/Content/Upgraders/ShaderAssetUpgrader.h"
 #include "Engine/Core/Log.h"

Source/Engine/Particles/ParticleSystem.cpp

@@ -2,7 +2,6 @@
 
 #include "ParticleSystem.h"
 #include "ParticleEffect.h"
-#include "Engine/Core/Types/CommonValue.h"
 #include "Engine/Level/Level.h"
 #include "Engine/Content/Deprecated.h"
 #include "Engine/Content/Factories/BinaryAssetFactory.h"
@@ -225,158 +224,6 @@ Asset::LoadResult ParticleSystem::load()
 #endif
     switch (version)
     {
-    PRAGMA_DISABLE_DEPRECATION_WARNINGS
-    case 1:
-    {
-        // [Deprecated on 23.07.2019, expires on 27.04.2021]
-        MARK_CONTENT_DEPRECATED();
-
-        // Load properties
-        stream.ReadFloat(&FramesPerSecond);
-        stream.ReadInt32(&DurationFrames);
-
-        // Load emitters
-        int32 emittersCount;
-        stream.ReadInt32(&emittersCount);
-        Emitters.Resize(emittersCount, false);
-
-        // Load tracks
-        Guid id;
-        int32 tracksCount;
-        stream.ReadInt32(&tracksCount);
-        Tracks.Resize(tracksCount, false);
-        for (int32 i = 0; i < tracksCount; i++)
-        {
-            auto& track = Tracks[i];
-
-            track.Type = (Track::Types)stream.ReadByte();
-            track.Flag = (Track::Flags)stream.ReadByte();
-            stream.ReadInt32(&track.ParentIndex);
-            stream.ReadInt32(&track.ChildrenCount);
-            stream.ReadString(&track.Name, -13);
-            track.Disabled = (int32)track.Flag & (int32)Track::Flags::Mute || (track.ParentIndex != -1 && Tracks[track.ParentIndex].Disabled);
-
-            switch (track.Type)
-            {
-            case Track::Types::Emitter:
-                stream.Read(id);
-                stream.ReadInt32(&track.AsEmitter.Index);
-                stream.ReadInt32(&track.AsEmitter.StartFrame);
-                stream.ReadInt32(&track.AsEmitter.DurationFrames);
-                Emitters[track.AsEmitter.Index] = id;
-                break;
-            case Track::Types::Folder:
-                stream.Read(track.Color);
-                break;
-            default:
-                return LoadResult::InvalidData;
-            }
-        }
-
-        // Wait for all tracks to be loaded - particle system cannot be used if any of the emitters is not loaded yet
-        // Note: this loop might trigger loading referenced assets on this thread
-        for (int32 i = 0; i < Emitters.Count(); i++)
-        {
-            if (Emitters[i])
-                Emitters[i]->WaitForLoaded();
-        }
-
-        // Load parameters overrides
-        int32 overridesCount = 0;
-        if (stream.CanRead())
-            stream.ReadInt32(&overridesCount);
-        if (overridesCount != 0)
-        {
-            EmitterParameterOverrideKey key;
-            CommonValue value;
-            for (int32 i = 0; i < overridesCount; i++)
-            {
-                stream.ReadInt32(&key.First);
-                stream.Read(key.Second);
-                stream.ReadCommonValue(&value);
-                SKIP_UNUSED_PARAM_OVERRIDE();
-                EmittersParametersOverrides.Add(key, Variant(value));
-            }
-        }
-
-        break;
-    }
-    case 2:
-    {
-        // [Deprecated on 31.07.2020, expires on 31.07.2022]
-        MARK_CONTENT_DEPRECATED();
-
-        // Load properties
-        stream.ReadFloat(&FramesPerSecond);
-        stream.ReadInt32(&DurationFrames);
-
-        // Load emitters
-        int32 emittersCount;
-        stream.ReadInt32(&emittersCount);
-        Emitters.Resize(emittersCount, false);
-
-        // Load tracks
-        Guid id;
-        int32 tracksCount;
-        stream.ReadInt32(&tracksCount);
-        Tracks.Resize(tracksCount, false);
-        for (int32 i = 0; i < tracksCount; i++)
-        {
-            auto& track = Tracks[i];
-
-            track.Type = (Track::Types)stream.ReadByte();
-            track.Flag = (Track::Flags)stream.ReadByte();
-            stream.ReadInt32(&track.ParentIndex);
-            stream.ReadInt32(&track.ChildrenCount);
-            stream.ReadString(&track.Name, -13);
-            track.Disabled = (int32)track.Flag & (int32)Track::Flags::Mute || (track.ParentIndex != -1 && Tracks[track.ParentIndex].Disabled);
-            stream.Read(track.Color);
-
-            switch (track.Type)
-            {
-            case Track::Types::Emitter:
-                stream.Read(id);
-                stream.ReadInt32(&track.AsEmitter.Index);
-                stream.ReadInt32(&track.AsEmitter.StartFrame);
-                stream.ReadInt32(&track.AsEmitter.DurationFrames);
-                Emitters[track.AsEmitter.Index] = id;
-                break;
-            case Track::Types::Folder:
-                break;
-            default:
-                return LoadResult::InvalidData;
-            }
-        }
-
-        // Wait for all tracks to be loaded - particle system cannot be used if any of the emitters is not loaded yet
-        // Note: this loop might trigger loading referenced assets on this thread
-        for (int32 i = 0; i < Emitters.Count(); i++)
-        {
-            if (Emitters[i])
-                Emitters[i]->WaitForLoaded();
-        }
-
-        // Load parameters overrides
-        int32 overridesCount = 0;
-        if (stream.CanRead())
-            stream.ReadInt32(&overridesCount);
-        if (overridesCount != 0)
-        {
-            EmitterParameterOverrideKey key;
-            CommonValue value;
-            for (int32 i = 0; i < overridesCount; i++)
-            {
-                stream.ReadInt32(&key.First);
-                stream.Read(key.Second);
-                stream.ReadCommonValue(&value);
-                SKIP_UNUSED_PARAM_OVERRIDE();
-                EmittersParametersOverrides[key] = Variant(value);
-            }
-        }
-
-        break;
-    }
-    PRAGMA_ENABLE_DEPRECATION_WARNINGS
     case 3: // [Deprecated on 03.09.2021 expires on 03.09.2023]
         MARK_CONTENT_DEPRECATED();
     case 4:

Source/Engine/Particles/Particles.cpp

@@ -41,7 +41,7 @@ PACK_STRUCT(struct SpriteParticleVertex
 class SpriteParticleRenderer
 {
 public:
-    volatile int64 Ready = 0;
+    volatile intptr Ready = 0;
     GPUBuffer* VB = nullptr;
     GPUBuffer* IB = nullptr;
     const static int32 VertexCount = 4;

Source/Engine/Particles/ParticlesSimulation.cpp

@@ -6,7 +6,6 @@
 #include "Particles.h"
 #include "Engine/Graphics/GPUBuffer.h"
 #include "Engine/Graphics/GPUDevice.h"
-#include "Engine/Core/Types/CommonValue.h"
 
 ParticleEmitterInstance::ParticleEmitterInstance()
 {

Source/Engine/Physics/PhysX/PhysicsBackendPhysX.cpp

@@ -539,11 +539,35 @@ protected:
 			hitInfo = hit.shape ? static_cast<PhysicsColliderActor*>(hit.shape->userData) : nullptr; \
 		}
 
+#if PLATFORM_THREADS_LIMIT <= 1
+
+class DummyCpuDispatcher : public PxCpuDispatcher
+{
+public:
+    void submitTask(PxBaseTask& task) override
+    {
+        // Run directly
+        PROFILE_CPU_NAMED("Physics");
+        task.run();
+        task.release();
+    }
+    uint32_t getWorkerCount() const override
+    {
+        return 1;
+    }
+};
+
+#endif
+
 namespace
 {
     PxFoundation* Foundation = nullptr;
     PxPhysics* PhysX = nullptr;
+#if PLATFORM_THREADS_LIMIT > 1
     PxDefaultCpuDispatcher* CpuDispatcher = nullptr;
+#else
+    DummyCpuDispatcher* CpuDispatcher = nullptr;
+#endif
 #if WITH_PVD
     PxPvd* PVD = nullptr;
 #endif
@@ -1736,7 +1760,11 @@ void PhysicsBackend::Shutdown()
 #if WITH_PVD
     RELEASE_PHYSX(PVD);
 #endif
+#if PLATFORM_THREADS_LIMIT > 1
     RELEASE_PHYSX(CpuDispatcher);
+#else
+    SAFE_DELETE(CpuDispatcher);
+#endif
     RELEASE_PHYSX(Foundation);
     SceneOrigins.Clear();
 }
@@ -1796,9 +1824,14 @@ void* PhysicsBackend::CreateScene(const PhysicsSettings& settings)
     {
         if (CpuDispatcher == nullptr)
         {
+#if PLATFORM_THREADS_LIMIT > 1
             uint32 threads = Math::Clamp<uint32>(Platform::GetCPUInfo().ProcessorCoreCount - 1, 1, 8);
             CpuDispatcher = PxDefaultCpuDispatcherCreate(threads);
             CHECK_INIT(CpuDispatcher, "PxDefaultCpuDispatcherCreate failed!");
+#else
+            CpuDispatcher = New<DummyCpuDispatcher>();
+#endif
+            CHECK_INIT(CpuDispatcher, "PxDefaultCpuDispatcherCreate failed!");
         }
         sceneDesc.cpuDispatcher = CpuDispatcher;
     }

Source/Engine/Physics/Physics.Build.cs

@@ -39,6 +39,12 @@ public class Physics : EngineModule
     {
         base.Setup(options);
 
+        if (options.Platform.Target == TargetPlatform.Web) // TODO: build PhysX for Web
+        {
+            options.PrivateDefinitions.Add("COMPILE_WITH_EMPTY_PHYSICS");
+            return;
+        }
+
         SetupPhysicsBackend(this, options);
 
         if (WithCooking)

Source/Engine/Platform/Android/AndroidPlatform.h

@@ -99,11 +99,6 @@ public:
     static void Yield();
     static double GetTimeSeconds();
     static uint64 GetTimeCycles();
-    FORCE_INLINE static uint64 GetClockFrequency()
-    {
-        // Dummy value
-        return 1000000;
-    }
     static void GetSystemTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond);
     static void GetUTCTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond);
     static bool Init();

Source/Engine/Platform/Base/FileSystemBase.cpp

@@ -244,11 +244,11 @@ bool FileSystemBase::CopyDirectory(const String& dst, const String& src, bool wi
     return !FileSystem::DirectoryExists(*src) || FileSystemBase::DirectoryCopyHelper(dst, src, withSubDirectories);
 }
 
-uint64 FileSystemBase::GetDirectorySize(const StringView& path)
+uint64 FileSystemBase::GetDirectorySize(const StringView& path, const Char* searchPattern, DirectorySearchOption option)
 {
     uint64 result = 0;
     Array<String> files;
-    FileSystem::DirectoryGetFiles(files, path);
+    FileSystem::DirectoryGetFiles(files, path, searchPattern, option);
     for (const String& file : files)
         result += FileSystem::GetFileSize(file);
     return result;

Source/Engine/Platform/Base/FileSystemBase.h

@@ -98,8 +98,10 @@ class FLAXENGINE_API FileSystemBase
     /// Gets the size of the directory (in bytes) defined by size of all files contained by it.
     /// </summary>
     /// <param name="path">Directory path.</param>
+    /// <param name="searchPattern">Custom search pattern to use during that operation Use asterisk character (*) for name-based filtering (eg. `*.txt` to find all files with `.txt` extension).</param>
+    /// <param name="option">Additional search options that define rules.</param>
     /// <returns>Amount of bytes in directory, or 0 if failed.</returns>
-    static uint64 GetDirectorySize(const StringView& path);
+    static uint64 GetDirectorySize(const StringView& path, const Char* searchPattern = TEXT("*"), DirectorySearchOption option = DirectorySearchOption::AllDirectories);
 
 public:
     /// <summary>

Source/Engine/Platform/Base/PlatformBase.cpp

@@ -44,7 +44,7 @@ static_assert(sizeof(double) == 8, "Invalid double type size.");
 
 // Check configuration
 static_assert((PLATFORM_THREADS_LIMIT & (PLATFORM_THREADS_LIMIT - 1)) == 0, "Threads limit must be power of two.");
-static_assert(PLATFORM_THREADS_LIMIT % 4 == 0, "Threads limit must be multiple of 4.");
+static_assert(PLATFORM_THREADS_LIMIT % 4 == 0 || PLATFORM_THREADS_LIMIT == 1, "Threads limit must be multiple of 4.");
 
 const Char* PlatformBase::ApplicationClassName = TEXT("FlaxWindow");
 float PlatformBase::CustomDpiScale = 1.0f;
@@ -301,6 +301,15 @@ bool PlatformBase::Is64BitApp()
 #endif
 }
 
+bool PlatformBase::Is64BitPlatform()
+{
+#if PLATFORM_64BITS
+    return true;
+#else
+    return false;
+#endif
+}
+
 int32 PlatformBase::GetCacheLineSize()
 {
     return (int32)Platform::GetCPUInfo().CacheLineSize;
@@ -820,6 +829,8 @@ const Char* ToString(PlatformType type)
         return TEXT("Mac");
     case PlatformType::iOS:
         return TEXT("iOS");
+    case PlatformType::Web:
+        return TEXT("Web");
     default:
         return TEXT("");
     }

Source/Engine/Platform/Base/PlatformBase.h

@@ -378,7 +378,7 @@ public:
     /// Returns true if running on 64-bit computer
     /// </summary>
     /// <returns>True if running on 64-bit computer, otherwise false.</returns>
-    API_PROPERTY() static bool Is64BitPlatform() = delete;
+    API_PROPERTY() static bool Is64BitPlatform();
 
     /// <summary>
     /// Gets the name of the operating system.
@@ -470,7 +470,11 @@ public:
     /// Gets the system clock frequency.
     /// </summary>
     /// <returns>The clock frequency.</returns>
-    API_PROPERTY() static uint64 GetClockFrequency() = delete;
+    API_PROPERTY() static uint64 GetClockFrequency()
+    {
+        // Dummy value
+        return 1000000;
+    }
 
     /// <summary>
     /// Gets current system time based on current computer settings.

Source/Engine/Platform/Base/StringUtilsBase.cpp

@@ -357,6 +357,8 @@ StringView StringUtils::GetPathWithoutExtension(const StringView& path)
 void StringUtils::PathRemoveRelativeParts(String& path)
 {
     FileSystem::NormalizePath(path);
+    if (path.Length() == 1 && path[0] == TEXT('/'))
+        return;
 
     Array<String> components;
     path.Split(TEXT('/'), components);

Source/Engine/Platform/Base/ThreadBase.cpp

@@ -45,10 +45,15 @@ void ThreadBase::Kill(bool waitForJoin)
     if (!_isRunning)
     {
         ClearHandleInternal();
+        if (_callAfterWork)
+        {
+            _callAfterWork = false;
+            _runnable->AfterWork(true);
+        }
         return;
     }
     ASSERT(GetID());
-    const auto thread = static_cast<Thread*>(this);
+    Thread* thread = (Thread*)this;
 
     // Stop runnable object
     if (_callAfterWork && _runnable)

Source/Engine/Platform/ConditionVariable.h

@@ -4,7 +4,7 @@
 
 #if PLATFORM_WINDOWS || PLATFORM_UWP || PLATFORM_XBOX_ONE || PLATFORM_XBOX_SCARLETT
 #include "Win32/Win32ConditionVariable.h"
-#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC || PLATFORM_IOS
+#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC || PLATFORM_IOS || PLATFORM_WEB
 #include "Unix/UnixConditionVariable.h"
 #elif PLATFORM_SWITCH
 #include "Platforms/Switch/Engine/Platform/SwitchConditionVariable.h"

Source/Engine/Platform/CriticalSection.h

@@ -4,7 +4,7 @@
 
 #if PLATFORM_WINDOWS || PLATFORM_UWP || PLATFORM_XBOX_ONE || PLATFORM_XBOX_SCARLETT
 #include "Win32/Win32CriticalSection.h"
-#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC || PLATFORM_IOS
+#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC || PLATFORM_IOS || PLATFORM_WEB
 #include "Unix/UnixCriticalSection.h"
 #elif PLATFORM_SWITCH
 #include "Platforms/Switch/Engine/Platform/SwitchCriticalSection.h"

Source/Engine/Platform/Defines.h

@@ -67,6 +67,11 @@ API_ENUM() enum class PlatformType
     /// </summary>
     API_ENUM(Attributes="EditorDisplay(null, \"iOS\")")
     iOS = 11,
+
+    /// <summary>
+    /// Running on Web.
+    /// </summary>
+    Web = 12,
 };
 
 /// <summary>
@@ -143,6 +148,9 @@ API_ENUM() enum class ArchitectureType
 #if !defined(PLATFORM_SDL)
 #define PLATFORM_SDL 0
 #endif
+#if !defined(PLATFORM_WEB)
+#define PLATFORM_WEB 0
+#endif
 
 #if PLATFORM_WINDOWS
 #include "Windows/WindowsDefines.h"
@@ -166,6 +174,8 @@ API_ENUM() enum class ArchitectureType
 #include "Mac/MacDefines.h"
 #elif PLATFORM_IOS
 #include "iOS/iOSDefines.h"
+#elif PLATFORM_WEB
+#include "Web/WebDefines.h"
 #else
 #error Missing Defines implementation!
 #endif

Source/Engine/Platform/File.h

@@ -4,7 +4,7 @@
 
 #if PLATFORM_WINDOWS || PLATFORM_UWP || PLATFORM_XBOX_ONE || PLATFORM_XBOX_SCARLETT
 #include "Win32/Win32File.h"
-#elif PLATFORM_LINUX || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC
+#elif PLATFORM_LINUX || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC || PLATFORM_WEB
 #include "Unix/UnixFile.h"
 #elif PLATFORM_IOS
 #include "iOS/iOSFile.h"

Source/Engine/Platform/FileSystem.h

@@ -24,6 +24,8 @@
 #include "Mac/MacFileSystem.h"
 #elif PLATFORM_IOS
 #include "iOS/iOSFileSystem.h"
+#elif PLATFORM_WEB
+#include "Web/WebFileSystem.h"
 #else
 #error Missing File System implementation!
 #endif

Source/Engine/Platform/Linux/LinuxPlatform.h

@@ -114,11 +114,6 @@ public:
     static void Yield();
     static double GetTimeSeconds();
     static uint64 GetTimeCycles();
-    FORCE_INLINE static uint64 GetClockFrequency()
-    {
-        // Dummy value
-        return 1000000;
-    }
     static void GetSystemTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond);
     static void GetUTCTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond);
 #if !BUILD_RELEASE

Source/Engine/Platform/Network.h

@@ -4,7 +4,7 @@
 
 #if PLATFORM_WINDOWS || PLATFORM_UWP || PLATFORM_XBOX_ONE || PLATFORM_XBOX_SCARLETT
 #include "Win32/Win32Network.h"
-#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_MAC || PLATFORM_IOS
+#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_MAC || PLATFORM_IOS || PLATFORM_WEB
 #include "Unix/UnixNetwork.h"
 #elif PLATFORM_PS4
 #include "Platforms/PS4/Engine/Platform/PS4Network.h"

Source/Engine/Platform/Platform.Build.cs

@@ -87,20 +87,17 @@ public class Platform : EngineModule
             options.SourcePaths.Add(Path.Combine(FolderPath, "Apple"));
             options.SourcePaths.Add(Path.Combine(FolderPath, "iOS"));
             break;
+        case TargetPlatform.Web:
+            options.SourcePaths.Add(Path.Combine(FolderPath, "Unix"));
+            options.SourcePaths.Add(Path.Combine(FolderPath, "Web"));
+            break;
         default: throw new InvalidPlatformException(options.Platform.Target);
         }
 
         if (EngineConfiguration.WithSDL(options))
         {
-            switch (options.Platform.Target)
+            options.PublicDependencies.Add("SDL");
-            {
+            options.SourcePaths.Add(Path.Combine(FolderPath, "SDL"));
-            case TargetPlatform.Windows:
-            case TargetPlatform.Linux:
-            case TargetPlatform.Mac:
-                options.PublicDependencies.Add("SDL");
-                options.SourcePaths.Add(Path.Combine(FolderPath, "SDL"));
-                break;
-            }
             if (options.Platform.Target == TargetPlatform.Linux)
                 options.PublicDependencies.Add("Wayland");
         }
@@ -115,6 +112,7 @@ public class Platform : EngineModule
             options.SourceFiles.Add(Path.Combine(FolderPath, "Apple", "ApplePlatformSettings.h"));
             options.SourceFiles.Add(Path.Combine(FolderPath, "Mac", "MacPlatformSettings.h"));
             options.SourceFiles.Add(Path.Combine(FolderPath, "iOS", "iOSPlatformSettings.h"));
+            options.SourceFiles.Add(Path.Combine(FolderPath, "Web", "WebPlatformSettings.h"));
             AddSourceFileIfExists(options, Path.Combine(Globals.EngineRoot, "Source", "Platforms", "XboxOne", "Engine", "Platform", "XboxOnePlatformSettings.h"));
             AddSourceFileIfExists(options, Path.Combine(Globals.EngineRoot, "Source", "Platforms", "XboxScarlett", "Engine", "Platform", "XboxScarlettPlatformSettings.h"));
             AddSourceFileIfExists(options, Path.Combine(Globals.EngineRoot, "Source", "Platforms", "PS4", "Engine", "Platform", "PS4PlatformSettings.h"));

Source/Engine/Platform/Platform.h

@@ -32,6 +32,8 @@
 #include "Mac/MacPlatform.h"
 #elif PLATFORM_IOS
 #include "iOS/iOSPlatform.h"
+#elif PLATFORM_WEB
+#include "Web/WebPlatform.h"
 #else
 #error Missing Platform implementation!
 #endif

Source/Engine/Platform/ReadWriteLock.h

@@ -4,7 +4,7 @@
 
 #if PLATFORM_WINDOWS || PLATFORM_UWP || PLATFORM_XBOX_ONE || PLATFORM_XBOX_SCARLETT
 #include "Win32/Win32ReadWriteLock.h"
-#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC || PLATFORM_IOS
+#elif PLATFORM_LINUX || PLATFORM_ANDROID || PLATFORM_PS4 || PLATFORM_PS5 || PLATFORM_MAC || PLATFORM_IOS || PLATFORM_WEB
 #include "Unix/UnixReadWriteLock.h"
 #elif PLATFORM_SWITCH
 #include "Platforms/Switch/Engine/Platform/SwitchReadWriteLock.h"

Source/Engine/Platform/SDL/SDLPlatform.Mac.cpp

@@ -1,6 +1,5 @@
 // Copyright (c) Wojciech Figat. All rights reserved.
 
-#include "SDLInput.h"
 #if PLATFORM_SDL && PLATFORM_MAC
 
 #include "SDLWindow.h"
@@ -21,10 +20,7 @@
 #include "Engine/Platform/Unix/UnixFile.h"
 #include "Engine/Profiler/ProfilerCPU.h"
 
-#include "Engine/Platform/Apple/AppleUtils.h"
+#include "Engine/Platform/Linux/IncludeX11.h"
-#include <Cocoa/Cocoa.h>
-#include <AppKit/AppKit.h>
-#include <QuartzCore/CAMetalLayer.h>
 
 #include <SDL3/SDL_events.h>
 #include <SDL3/SDL_hints.h>
@@ -34,43 +30,6 @@
 #include <SDL3/SDL_timer.h>
 #include <SDL3/SDL_video.h>
 
-namespace MacImpl
-{
-    Window* DraggedWindow = nullptr;
-    String DraggingData = String();
-    Float2 DraggingPosition;
-    Nullable<Float2> LastMouseDragPosition;
-#if USE_EDITOR
-    //CriticalSection MacDragLocker;
-    bool DraggingActive = false;
-    bool DraggingIgnoreEvent = false;
-    NSDraggingSession* MacDragSession = nullptr;
-    //DoDragDropJob* MacDragJob = nullptr;
-    int64 MacDragExitFlag = 0;
-#endif
-}
-
-class MacDropData : public IGuiData
-{
-public:
-    Type CurrentType;
-    String AsText;
-    Array<String> AsFiles;
-
-    Type GetType() const override
-    {
-        return CurrentType;
-    }
-    String GetAsText() const override
-    {
-        return AsText;
-    }
-    void GetAsFiles(Array<String>* files) const override
-    {
-        files->Add(AsFiles);
-    }
-};
-
 bool SDLPlatform::InitInternal()
 {
     return false;
@@ -91,282 +50,16 @@ bool SDLPlatform::UsesX11()
     return false;
 }
 
-bool SDLPlatform::EventFilterCallback(void* userdata, SDL_Event* event)
-{
-    Window* draggedWindow = *(Window**)userdata;
-    if (draggedWindow == nullptr)
-    {
-        if (MacImpl::DraggingActive)
-        {
-            // Handle events during drag operation here since the normal event loop is blocked
-            if (event->type == SDL_EVENT_WINDOW_EXPOSED)
-            {
-                LOG(Info, "Window exposed event");
-                // The internal timer is sending exposed events every ~16ms
-#if USE_EDITOR
-                // Flush any single-frame shapes to prevent memory leaking (eg. via terrain collision debug during scene drawing with PhysicsColliders or PhysicsDebug flag)
-                DebugDraw::UpdateContext(nullptr, 0.0f);
-#endif
-                Engine::OnUpdate(); // For docking updates
-                Engine::OnDraw();
-            }
-            else
-            {
-                SDLWindow* window = SDLWindow::GetWindowFromEvent(*event);
-                if (window)
-                    window->HandleEvent(*event);
-
-                // We do not receive events at steady rate to keep the engine updated...
-#if USE_EDITOR
-                // Flush any single-frame shapes to prevent memory leaking (eg. via terrain collision debug during scene drawing with PhysicsColliders or PhysicsDebug flag)
-                DebugDraw::UpdateContext(nullptr, 0.0f);
-#endif
-                Engine::OnUpdate(); // For docking updates
-                Engine::OnDraw();
-
-                if (event->type == SDL_EVENT_DROP_BEGIN || event->type == SDL_EVENT_DROP_FILE || event->type == SDL_EVENT_DROP_TEXT)
-                    return true; // Filtering these event stops other following events from getting added to the queue
-                else
-                    LOG(Info, "Unhandled event: {}", event->type);
-            }
-            return false;
-        }
-        return true;
-    }
-    return true;
-
-    // When the window is being dragged on Windows, the internal message loop is blocking
-    // the SDL event queue. We need to handle all relevant events in this event watch callback
-    // to ensure dragging related functionality doesn't break due to engine not getting updated.
-    // This also happens to fix the engine freezing during the dragging operation.
-#if false
-    SDLWindow* window = SDLWindow::GetWindowFromEvent(*event);
-    if (event->type == SDL_EVENT_WINDOW_EXPOSED)
-    {
-        // The internal timer is sending exposed events every ~16ms
-        Engine::OnUpdate(); // For docking updates
-        Engine::OnDraw();
-        return false;
-    }
-    else if (event->type == SDL_EVENT_MOUSE_BUTTON_DOWN)
-    {
-        if (window)
-        {
-            bool result = false;
-            window->OnLeftButtonHit(WindowHitCodes::Caption, result);
-            //if (result)
-            //    return false;
-            window->HandleEvent(*event);
-        }
-        return false;
-    }
-    else if (event->type == SDL_EVENT_WINDOW_MOVED)
-    {
-        if (window)
-            window->HandleEvent(*event);
-
-        /*if (WinImpl::DraggedWindowSize != window->GetClientSize())
-        {
-            // The window size changed while dragging, most likely due to maximized window restoring back to previous size.
-            WinImpl::DraggedWindowMousePosition = WinImpl::DraggedWindowStartPosition + WinImpl::DraggedWindowMousePosition - window->GetClientPosition();
-            WinImpl::DraggedWindowStartPosition = window->GetClientPosition();
-            WinImpl::DraggedWindowSize = window->GetClientSize();
-        }
-        Float2 windowPosition = Float2(static_cast<float>(event->window.data1), static_cast<float>(event->window.data2));
-        Float2 mousePosition = WinImpl::DraggedWindowMousePosition;
-
-        // Generate mouse movement events while dragging the window around
-        SDL_Event mouseMovedEvent { 0 };
-        mouseMovedEvent.motion.type = SDL_EVENT_MOUSE_MOTION;
-        mouseMovedEvent.motion.windowID = SDL_GetWindowID(WinImpl::DraggedWindow->GetSDLWindow());
-        mouseMovedEvent.motion.timestamp = SDL_GetTicksNS();
-        mouseMovedEvent.motion.state = SDL_BUTTON_LEFT;
-        mouseMovedEvent.motion.x = mousePosition.X;
-        mouseMovedEvent.motion.y = mousePosition.Y;
-        if (window)
-            window->HandleEvent(mouseMovedEvent);*/
-
-        return false;
-    }
-    if (window)
-        window->HandleEvent(*event);
-
-    return false;
-#endif
-}
-
 void SDLPlatform::PreHandleEvents()
 {
-    SDL_SetEventFilter(EventFilterCallback, &MacImpl::DraggedWindow);
 }
 
 void SDLPlatform::PostHandleEvents()
 {
-    SDL_SetEventFilter(EventFilterCallback, &MacImpl::DraggedWindow);
-
-    // Handle window dragging release here
-    if (MacImpl::DraggedWindow != nullptr)
-    {
-        Float2 mousePosition;
-        auto buttons = SDL_GetGlobalMouseState(&mousePosition.X, &mousePosition.Y);
-        bool buttonReleased = (buttons & SDL_BUTTON_MASK(SDL_BUTTON_LEFT)) == 0;
-        if (buttonReleased)
-        {
-            // Send simulated mouse up event
-            SDL_Event buttonUpEvent { 0 };
-            buttonUpEvent.motion.type = SDL_EVENT_MOUSE_BUTTON_UP;
-            buttonUpEvent.button.down = false;
-            buttonUpEvent.motion.windowID = SDL_GetWindowID(MacImpl::DraggedWindow->GetSDLWindow());
-            buttonUpEvent.motion.timestamp = SDL_GetTicksNS();
-            buttonUpEvent.motion.state = SDL_BUTTON_LEFT;
-            buttonUpEvent.button.clicks = 1;
-            buttonUpEvent.motion.x = mousePosition.X;
-            buttonUpEvent.motion.y = mousePosition.Y;
-            MacImpl::DraggedWindow->HandleEvent(buttonUpEvent);
-            MacImpl::DraggedWindow = nullptr;
-        }
-    }
 }
 
 bool SDLWindow::HandleEventInternal(SDL_Event& event)
 {
-    switch (event.type)
-    {
-    case SDL_EVENT_WINDOW_MOVED:
-    {
-        // Quartz doesn't report any mouse events when mouse is over the caption area, send a simulated event instead...
-        Float2 mousePosition;
-        auto buttons = SDL_GetGlobalMouseState(&mousePosition.X, &mousePosition.Y);
-        if ((buttons & SDL_BUTTON_MASK(SDL_BUTTON_LEFT)) != 0)
-        {
-            if (MacImpl::DraggedWindow == nullptr)
-            {
-                // TODO: verify mouse position, window focus
-                bool result = false;
-                OnLeftButtonHit(WindowHitCodes::Caption, result);
-                if (result)
-                    MacImpl::DraggedWindow = this;
-            }
-            else
-            {
-                Float2 mousePos = Platform::GetMousePosition();
-                Input::Mouse->OnMouseMove(mousePos, this);
-            }
-        }
-        break;
-    }
-    case SDL_EVENT_MOUSE_BUTTON_UP:
-    case SDL_EVENT_MOUSE_BUTTON_DOWN:
-    {
-        if (MacImpl::LastMouseDragPosition.HasValue())
-        {
-            // SDL reports wrong mouse position after dragging has ended
-            Float2 mouseClientPosition = ScreenToClient(MacImpl::LastMouseDragPosition.GetValue());
-            event.button.x = mouseClientPosition.X;
-            event.button.y = mouseClientPosition.Y;
-        }
-        break;
-    }
-    case SDL_EVENT_MOUSE_MOTION:
-    {
-        if (MacImpl::LastMouseDragPosition.HasValue())
-            MacImpl::LastMouseDragPosition.Reset();
-        if (MacImpl::DraggedWindow != nullptr)
-            return true;
-        break;
-    }
-    case SDL_EVENT_WINDOW_MOUSE_LEAVE:
-    {
-        OnDragLeave(); // Check for release of mouse button too?
-        break;
-    }
-    //case SDL_EVENT_CLIPBOARD_UPDATE:
-    case SDL_EVENT_DROP_BEGIN:
-    case SDL_EVENT_DROP_POSITION:
-    case SDL_EVENT_DROP_FILE:
-    case SDL_EVENT_DROP_TEXT:
-    case SDL_EVENT_DROP_COMPLETE:
-    {
-        {
-            // HACK: We can't use Wayland listeners due to SDL also using them at the same time causes
-            // some of the events to drop and make it impossible to implement dragging on application side.
-            // We can get enough information through SDL_EVENT_DROP_* events to fill in the blanks for the
-            // drag and drop implementation.
-
-            auto dpiScale = GetDpiScale();
-            Float2 mousePos = Float2(event.drop.x * dpiScale, event.drop.y * dpiScale);
-            DragDropEffect effect = DragDropEffect::None;
-            String text(event.drop.data);
-            MacDropData dropData;
-
-            if (MacImpl::DraggingActive)
-            {
-                // We don't have the window dragging data during these events...
-                text = MacImpl::DraggingData;
-                mousePos = ScreenToClient(MacImpl::DraggingPosition);
-
-                // Ensure mouse position is updated while dragging
-                Input::Mouse->OnMouseMove(MacImpl::DraggingPosition, this);
-                MacImpl::LastMouseDragPosition = MacImpl::DraggingPosition;
-            }
-            dropData.AsText = text;
-
-            if (event.type == SDL_EVENT_DROP_BEGIN)
-            {
-                // We don't know the type of dragged data at this point, so call the events for both types
-                if (!MacImpl::DraggingActive)
-                {
-                    dropData.CurrentType = IGuiData::Type::Files;
-                    OnDragEnter(&dropData, mousePos, effect);
-                }
-                if (effect == DragDropEffect::None)
-                {
-                    dropData.CurrentType = IGuiData::Type::Text;
-                    OnDragEnter(&dropData, mousePos, effect);
-                }
-            }
-            else if (event.type == SDL_EVENT_DROP_POSITION)
-            {
-                Input::Mouse->OnMouseMove(ClientToScreen(mousePos), this);
-
-                // We don't know the type of dragged data at this point, so call the events for both types
-                if (!MacImpl::DraggingActive)
-                {
-                    dropData.CurrentType = IGuiData::Type::Files;
-                    OnDragOver(&dropData, mousePos, effect);
-                }
-                if (effect == DragDropEffect::None)
-                {
-                    dropData.CurrentType = IGuiData::Type::Text;
-                    OnDragOver(&dropData, mousePos, effect);
-                }
-            }
-            else if (event.type == SDL_EVENT_DROP_FILE)
-            {
-                text.Split('\n', dropData.AsFiles);
-                dropData.CurrentType = IGuiData::Type::Files;
-                OnDragDrop(&dropData, mousePos, effect);
-            }
-            else if (event.type == SDL_EVENT_DROP_TEXT)
-            {
-                dropData.CurrentType = IGuiData::Type::Text;
-                OnDragDrop(&dropData, mousePos, effect);
-            }
-            else if (event.type == SDL_EVENT_DROP_COMPLETE)
-            {
-                OnDragLeave();
-                if (MacImpl::DraggingActive)
-                {
-                    // The previous drop events needs to be flushed to avoid processing them twice
-                    SDL_FlushEvents(SDL_EVENT_DROP_FILE, SDL_EVENT_DROP_POSITION);
-                }
-            }
-
-            // TODO: Implement handling for feedback effect result (https://github.com/libsdl-org/SDL/issues/10448)
-        }
-        break;
-    }
-    }
     return false;
 }
 
@@ -375,207 +68,9 @@ void SDLPlatform::SetHighDpiAwarenessEnabled(bool enable)
     // TODO: This is now called before Platform::Init, ensure the scaling is changed accordingly during Platform::Init (see ApplePlatform::SetHighDpiAwarenessEnabled)
 }
 
-
-inline bool IsWindowInvalid(Window* win)
-{
-    WindowsManager::WindowsLocker.Lock();
-    const bool hasWindow = WindowsManager::Windows.Contains(win);
-    WindowsManager::WindowsLocker.Unlock();
-    return !hasWindow || !win;
-}
-
-Float2 GetWindowTitleSize(const SDLWindow* window)
-{
-    Float2 size = Float2::Zero;
-    if (window->GetSettings().HasBorder)
-    {
-        NSRect frameStart = [(NSWindow*)window->GetNativePtr() frameRectForContentRect:NSMakeRect(0, 0, 0, 0)];
-        size.Y = frameStart.size.height;
-    }
-    return size * MacPlatform::ScreenScale;
-}
-
-Float2 GetMousePosition(SDLWindow* window, NSEvent* event)
-{
-    NSRect frame = [(NSWindow*)window->GetNativePtr() frame];
-    NSPoint point = [event locationInWindow];
-    return Float2(point.x, frame.size.height - point.y) * MacPlatform::ScreenScale - GetWindowTitleSize(window);
-}
-
-Float2 GetMousePosition(SDLWindow* window, const NSPoint& point)
-{
-    NSRect frame = [(NSWindow*)window->GetNativePtr() frame];
-    CGRect screenBounds = CGDisplayBounds(CGMainDisplayID());
-    return Float2(point.x, screenBounds.size.height - point.y) * MacPlatform::ScreenScale;
-}
-
-void GetDragDropData(const SDLWindow* window, id<NSDraggingInfo> sender, Float2& mousePos, MacDropData& dropData)
-{
-    NSRect frame = [(NSWindow*)window->GetNativePtr() frame];
-    NSPoint point = [sender draggingLocation];
-    mousePos = Float2(point.x, frame.size.height - point.y) * MacPlatform::ScreenScale - GetWindowTitleSize(window);
-    NSPasteboard* pasteboard = [sender draggingPasteboard];
-    if ([[pasteboard types] containsObject:NSPasteboardTypeString])
-    {
-        dropData.CurrentType = IGuiData::Type::Text;
-        dropData.AsText = AppleUtils::ToString((CFStringRef)[pasteboard stringForType:NSPasteboardTypeString]);
-    }
-    else
-    {
-        dropData.CurrentType = IGuiData::Type::Files;
-        NSArray* files = [pasteboard readObjectsForClasses:@[[NSURL class]] options:nil];
-        for (int32 i = 0; i < [files count]; i++)
-        {
-            NSString* url = [[files objectAtIndex:i] path];
-            NSString* file = [NSURL URLWithString:url].path;
-            dropData.AsFiles.Add(AppleUtils::ToString((CFStringRef)file));
-        }
-    }
-}
-
-NSDragOperation GetDragDropOperation(DragDropEffect dragDropEffect)
-{
-    NSDragOperation result = NSDragOperationCopy;
-    switch (dragDropEffect)
-    {
-    case DragDropEffect::None:
-        //result = NSDragOperationNone;
-            break;
-    case DragDropEffect::Copy:
-        result = NSDragOperationCopy;
-        break;
-    case DragDropEffect::Move:
-        result = NSDragOperationMove;
-        break;
-    case DragDropEffect::Link:
-        result = NSDragOperationLink;
-        break;
-    }
-    return result;
-}
-
-#undef INCLUDED_IN_SDL
-
-
-@interface ClipboardDataProviderImpl : NSObject <NSPasteboardItemDataProvider, NSDraggingSource>
-{
-@public
-    SDLWindow* Window;
-}
-@end
-
-@implementation ClipboardDataProviderImpl
-
-// NSPasteboardItemDataProvider
-// ---
-
-- (void)pasteboard:(nullable NSPasteboard*)pasteboard item:(NSPasteboardItem*)item provideDataForType:(NSPasteboardType)type
-{
-    LOG(Info, "pasteboard");
-    if (IsWindowInvalid(Window)) return;
-    [pasteboard setString:(NSString*)AppleUtils::ToString(MacImpl::DraggingData) forType:NSPasteboardTypeString];
-}
-
-- (void)pasteboardFinishedWithDataProvider:(NSPasteboard*)pasteboard
-{
-    LOG(Info, "pasteboardFinishedWithDataProvider");
-}
-
-// NSDraggingSource
-// ---
-
-- (NSDragOperation)draggingSession:(NSDraggingSession*)session sourceOperationMaskForDraggingContext:(NSDraggingContext)context
-{
-    if (IsWindowInvalid(Window))
-        return NSDragOperationNone;
-
-    switch(context)
-    {
-    case NSDraggingContextOutsideApplication:
-        LOG(Info, "draggingSession sourceOperationMaskForDraggingContext: outside");
-        return NSDragOperationCopy;
-    case NSDraggingContextWithinApplication:
-        LOG(Info, "draggingSession sourceOperationMaskForDraggingContext: inside");
-        return NSDragOperationCopy;
-    default:
-        LOG(Info, "draggingSession sourceOperationMaskForDraggingContext: unknown");
-        return NSDragOperationMove;
-    }
-}
-
-- (void)draggingSession:(NSDraggingSession*)session willBeginAtPoint:(NSPoint)screenPoint
-{
-    LOG(Info, "draggingSession willBeginAtPoint");
-    MacImpl::DraggingPosition = GetMousePosition(Window, screenPoint);
-}
-
-- (void)draggingSession:(NSDraggingSession*)session movedToPoint:(NSPoint)screenPoint
-{
-    //LOG(Info, "draggingSession movedToPoint");
-    MacImpl::DraggingPosition = GetMousePosition(Window, screenPoint);
-}
-
-- (void)draggingSession:(NSDraggingSession*)session endedAtPoint:(NSPoint)screenPoint operation:(NSDragOperation)operation
-{
-    LOG(Info, "draggingSession endedAtPoint");
-    MacImpl::DraggingPosition = GetMousePosition(Window, screenPoint);
-#if USE_EDITOR
-    // Stop background worker once the drag ended
-    if (MacImpl::MacDragSession && MacImpl::MacDragSession == session)
-        Platform::AtomicStore(&MacImpl::MacDragExitFlag, 1);
-#endif
-}
-
-@end
-
 DragDropEffect SDLWindow::DoDragDrop(const StringView& data)
 {
-    NSWindow* window = (NSWindow*)_handle;
+    return DragDropEffect::None;
-    ClipboardDataProviderImpl* clipboardDataProvider = [ClipboardDataProviderImpl alloc];
-    clipboardDataProvider->Window = this;
-
-    // Create mouse drag event
-    NSEvent* event = [NSEvent
-        mouseEventWithType:NSEventTypeLeftMouseDragged
-        location:window.mouseLocationOutsideOfEventStream
-        modifierFlags:0
-        timestamp:NSApp.currentEvent.timestamp
-        windowNumber:window.windowNumber
-        context:nil
-        eventNumber:0
-        clickCount:1
-        pressure:1.0];
-
-    // Create drag item
-    NSPasteboardItem* pasteItem = [NSPasteboardItem new];
-    [pasteItem setDataProvider:clipboardDataProvider forTypes:[NSArray arrayWithObjects:NSPasteboardTypeString, nil]];
-    NSDraggingItem* dragItem = [[NSDraggingItem alloc] initWithPasteboardWriter:pasteItem];
-    [dragItem setDraggingFrame:NSMakeRect(event.locationInWindow.x, event.locationInWindow.y, 100, 100) contents:nil];
-
-    // Start dragging session
-    NSDraggingSession* draggingSession = [window.contentView beginDraggingSessionWithItems:[NSArray arrayWithObject:dragItem] event:event source:clipboardDataProvider];
-    DragDropEffect result = DragDropEffect::None;
-
-#if USE_EDITOR
-    // Create background worker that will keep updating GUI (perform rendering)
-    ASSERT(!MacImpl::MacDragSession);
-    MacImpl::MacDragSession = draggingSession;
-    MacImpl::MacDragExitFlag = 0;
-    MacImpl::DraggingData = data;
-    MacImpl::DraggingActive = true;
-    while (Platform::AtomicRead(&MacImpl::MacDragExitFlag) == 0)
-    {
-        // The internal event loop will block here during the drag operation,
-        // events are processed in the event filter callback instead.
-        SDLPlatform::Tick();
-        Platform::Sleep(1);
-    }
-    MacImpl::DraggingActive = false;
-    MacImpl::DraggingData.Clear();
-    MacImpl::MacDragSession = nullptr;
-#endif
-
-    return result;
 }
 
 DragDropEffect SDLWindow::DoDragDrop(const StringView& data, const Float2& offset, Window* dragSourceWindow)

Source/Engine/Platform/SDL/SDLPlatform.Web.cpp

@@ -0,0 +1,207 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#if PLATFORM_SDL && PLATFORM_WEB
+
+#include "SDLWindow.h"
+#include "Engine/Platform/MessageBox.h"
+#include "Engine/Core/Log.h"
+#include <SDL3/SDL_messagebox.h>
+#include <SDL3/SDL_error.h>
+
+bool SDLPlatform::InitInternal()
+{
+    return false;
+}
+
+bool SDLPlatform::UsesWindows()
+{
+    return false;
+}
+
+bool SDLPlatform::UsesWayland()
+{
+    return false;
+}
+
+bool SDLPlatform::UsesX11()
+{
+    return false;
+}
+
+void SDLPlatform::PreHandleEvents()
+{
+}
+
+void SDLPlatform::PostHandleEvents()
+{
+}
+
+bool SDLWindow::HandleEventInternal(SDL_Event& event)
+{
+    return false;
+}
+
+void SDLPlatform::SetHighDpiAwarenessEnabled(bool enable)
+{
+}
+
+DragDropEffect SDLWindow::DoDragDrop(const StringView& data)
+{
+    return DragDropEffect::None;
+}
+
+DragDropEffect SDLWindow::DoDragDrop(const StringView& data, const Float2& offset, Window* dragSourceWindow)
+{
+    Show();
+    return DragDropEffect::None;
+}
+
+DialogResult MessageBox::Show(Window* parent, const StringView& text, const StringView& caption, MessageBoxButtons buttons, MessageBoxIcon icon)
+{
+    StringAnsi textAnsi(text);
+    StringAnsi captionAnsi(caption);
+
+    SDL_MessageBoxData data;
+    SDL_MessageBoxButtonData dataButtons[3];
+    data.window = nullptr;
+    data.title = captionAnsi.GetText();
+    data.message = textAnsi.GetText();
+    data.colorScheme = nullptr;
+
+    switch (icon)
+    {
+    case MessageBoxIcon::Error:
+    case MessageBoxIcon::Hand:
+    case MessageBoxIcon::Stop:
+        data.flags |= SDL_MESSAGEBOX_ERROR;
+        break;
+    case MessageBoxIcon::Asterisk:
+    case MessageBoxIcon::Information:
+    case MessageBoxIcon::Question:
+        data.flags |= SDL_MESSAGEBOX_INFORMATION;
+        break;
+    case MessageBoxIcon::Exclamation:
+    case MessageBoxIcon::Warning:
+        data.flags |= SDL_MESSAGEBOX_WARNING;
+        break;
+    default:
+        break;
+    }
+
+    switch (buttons)
+    {
+    case MessageBoxButtons::AbortRetryIgnore:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Abort,
+            "Abort"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Retry,
+            "Retry"
+        };
+        dataButtons[2] =
+        {
+            0,
+            (int)DialogResult::Ignore,
+            "Ignore"
+        };
+        data.numbuttons = 3;
+        break;
+    case MessageBoxButtons::OK:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT | SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::OK,
+            "OK"
+        };
+        data.numbuttons = 1;
+        break;
+    case MessageBoxButtons::OKCancel:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::OK,
+            "OK"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Cancel,
+            "Cancel"
+        };
+        data.numbuttons = 2;
+        break;
+    case MessageBoxButtons::RetryCancel:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Retry,
+            "Retry"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Cancel,
+            "Cancel"
+        };
+        data.numbuttons = 2;
+        break;
+    case MessageBoxButtons::YesNo:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Yes,
+            "Yes"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::No,
+            "No"
+        };
+        data.numbuttons = 2;
+        break;
+    case MessageBoxButtons::YesNoCancel:
+    {
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Yes,
+            "Yes"
+        };
+        dataButtons[1] =
+        {
+            0,
+            (int)DialogResult::No,
+            "No"
+        };
+        dataButtons[2] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Cancel,
+            "Cancel"
+        };
+        data.numbuttons = 3;
+        break;
+    }
+    default:
+        break;
+    }
+    data.buttons = dataButtons;
+
+    int result = -1;
+    if (!SDL_ShowMessageBox(&data, &result))
+    {
+        LOG(Error, "Failed to show SDL message box: {0}", String(SDL_GetError()));
+        return DialogResult::Abort;
+    }
+    if (result < 0)
+        return DialogResult::None;
+    return (DialogResult)result;
+}
+
+#endif

Source/Engine/Platform/SDL/SDLPlatform.cpp

@@ -32,7 +32,7 @@
 namespace SDLImpl
 {
     int32 SystemDpi = 96;
-#if PLATFORM_LINUX
+#if PLATFORM_LINUX || PLATFORM_WEB
     String UserLocale("en");
 #endif
     bool WindowDecorationsSupported = true;
@@ -109,7 +109,7 @@ bool SDLPlatform::Init()
     if (!SDL_InitSubSystem(SDL_INIT_VIDEO | SDL_INIT_GAMEPAD))
         Platform::Fatal(String::Format(TEXT("Failed to initialize SDL: {0}."), String(SDL_GetError())));
 
-#if PLATFORM_LINUX
+#if PLATFORM_LINUX || PLATFORM_WEB
     int localesCount = 0;
     auto locales = SDL_GetPreferredLocales(&localesCount);
     for (int i = 0; i < localesCount; i++)
@@ -241,7 +241,7 @@ int32 SDLPlatform::GetDpi()
     return SDLImpl::SystemDpi;
 }
 
-#if PLATFORM_LINUX
+#if PLATFORM_LINUX || PLATFORM_WEB
 String SDLPlatform::GetUserLocaleName()
 {
     return SDLImpl::UserLocale;
@@ -435,8 +435,10 @@ int32 SDLPlatform::CreateProcess(CreateProcessSettings& settings)
     SDL_SetPointerProperty(props, SDL_PROP_PROCESS_CREATE_ARGS_POINTER, cmd.Get());
     SDL_SetPointerProperty(props, SDL_PROP_PROCESS_CREATE_ENVIRONMENT_POINTER, env);
     SDL_SetBooleanProperty(props, SDL_PROP_PROCESS_CREATE_BACKGROUND_BOOLEAN, background);
+#if !PLATFORM_WEB
     if (workingDirectory.HasChars())
         SDL_SetStringProperty(props, SDL_PROP_PROCESS_CREATE_WORKING_DIRECTORY_STRING, workingDirectory.Get());
+#endif
     if (captureStdOut)
     {
         SDL_SetNumberProperty(props, SDL_PROP_PROCESS_CREATE_STDOUT_NUMBER, SDL_PROCESS_STDIO_APP);

Source/Engine/Platform/SDL/SDLPlatform.h

@@ -7,29 +7,25 @@
 #include "Engine/Platform/Base/Enums.h"
 #if PLATFORM_WINDOWS
 #include "Engine/Platform/Windows/WindowsPlatform.h"
+typedef WindowsPlatform SDLPlatformBase;
 typedef struct tagMSG MSG;
 #elif PLATFORM_LINUX
 #include "Engine/Platform/Linux/LinuxPlatform.h"
+typedef LinuxPlatform SDLPlatformBase;
 union _XEvent;
 #elif PLATFORM_MAC
 #include "Engine/Platform/Mac/MacPlatform.h"
+typedef MacPlatform SDLPlatformBase;
+#elif PLATFORM_WEB
+#include "Engine/Platform/Web/WebPlatform.h"
+typedef WebPlatform SDLPlatformBase;
 #else
-static_assert(false, "Unsupported Platform");
+static_assert(false, "Unsupported SDL platform.");
 #endif
 
 class SDLWindow;
 union SDL_Event;
 
-#if PLATFORM_WINDOWS
-typedef WindowsPlatform SDLPlatformBase;
-#elif PLATFORM_LINUX
-typedef LinuxPlatform SDLPlatformBase;
-#elif PLATFORM_MAC
-typedef MacPlatform SDLPlatformBase;
-#else
-static_assert(false, "Unsupported SDL platform.");
-#endif
-
 /// <summary>
 /// The SDL platform implementation and application management utilities.
 /// </summary>
@@ -84,7 +80,7 @@ public:
     static BatteryInfo GetBatteryInfo();
 #endif
     static int32 GetDpi();
-#if PLATFORM_LINUX
+#if PLATFORM_LINUX || PLATFORM_WEB
     static String GetUserLocaleName();
 #endif
     static bool CanOpenUrl(const StringView& url);

Source/Engine/Platform/SDL/SDLWindow.cpp

@@ -38,6 +38,7 @@
 #include "Engine/Platform/Linux/IncludeX11.h"
 #elif PLATFORM_MAC
 #include <Cocoa/Cocoa.h>
+#elif PLATFORM_WEB
 #else
 static_assert(false, "Unsupported Platform");
 #endif
@@ -77,6 +78,8 @@ void* GetNativeWindowPointer(SDL_Window* window)
     windowPtr = SDL_GetPointerProperty(props, SDL_PROP_WINDOW_ANDROID_WINDOW_POINTER, nullptr);
 #elif PLATFORM_IOS
     windowPtr = SDL_GetPointerProperty(props, SDL_PROP_WINDOW_UIKIT_WINDOW_POINTER, nullptr);
+#elif PLATFORM_WEB
+    windowPtr = (void*)1; // Mock value (TODO: consider SDL_PROP_WINDOW_EMSCRIPTEN_CANVAS_ID_STRING)
 #else
     static_assert(false, "unsupported platform");
 #endif

Source/Engine/Platform/Thread.h

@@ -16,6 +16,8 @@
 #include "Platforms/Switch/Engine/Platform/SwitchThread.h"
 #elif PLATFORM_MAC || PLATFORM_IOS
 #include "Apple/AppleThread.h"
+#elif PLATFORM_WEB
+#include "Web/WebThread.h"
 #else
 #error Missing Thread implementation!
 #endif

Source/Engine/Platform/Types.h

@@ -305,6 +305,29 @@ typedef UnixNetwork Network;
 class UserBase;
 typedef UserBase User;
 
+#elif PLATFORM_WEB
+
+class UnixCriticalSection;
+typedef UnixCriticalSection CriticalSection;
+class UnixReadWriteLock;
+typedef UnixReadWriteLock ReadWriteLock;
+class UnixConditionVariable;
+typedef UnixConditionVariable ConditionVariable;
+class WebFileSystem;
+typedef WebFileSystem FileSystem;
+class FileSystemWatcherBase;
+typedef FileSystemWatcherBase FileSystemWatcher;
+class UnixFile;
+typedef UnixFile File;
+class WebThread;
+typedef WebThread Thread;
+class ClipboardBase;
+typedef ClipboardBase Clipboard;
+class UnixNetwork;
+typedef UnixNetwork Network;
+class UserBase;
+typedef UserBase User;
+
 #else
 
 #error Missing Types implementation!

Source/Engine/Platform/Unix/UnixThread.cpp

@@ -1,6 +1,6 @@
 // Copyright (c) Wojciech Figat. All rights reserved.
 
-#if PLATFORM_UNIX
+#if PLATFORM_UNIX && !PLATFORM_WEB
 
 #include "UnixThread.h"
 #include "Engine/Core/Log.h"

Source/Engine/Platform/Unix/UnixThread.h

@@ -2,7 +2,7 @@
 
 #pragma once
 
-#if PLATFORM_UNIX
+#if PLATFORM_UNIX && !PLATFORM_WEB
 
 #include "Engine/Platform/Base/ThreadBase.h"
 #include <pthread.h>

Source/Engine/Platform/Web/WebDefines.h

@@ -0,0 +1,30 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if PLATFORM_WEB
+
+#include "../Unix/UnixDefines.h"
+
+// Platform description
+#define PLATFORM_TYPE PlatformType::Web
+#define PLATFORM_64BITS 0
+#define PLATFORM_ARCH ArchitectureType::x86
+#define PLATFORM_CACHE_LINE_SIZE 64
+#define PLATFORM_DEBUG_BREAK 
+#define PLATFORM_OUT_OF_MEMORY_BUFFER_SIZE 0
+
+// Configure graphics
+#define GPU_ALLOW_TESSELLATION_SHADERS 0
+#define GPU_ALLOW_GEOMETRY_SHADERS 0
+#define GPU_ALLOW_PROFILE_EVENTS 0
+
+// Threading is optional
+#ifdef __EMSCRIPTEN_PTHREADS__
+#define PLATFORM_THREADS_LIMIT 4
+#else
+#define PLATFORM_THREADS_LIMIT 1
+#define GPU_ENABLE_ASYNC_RESOURCES_CREATION 0
+#endif
+
+#endif

Source/Engine/Platform/Web/WebFileSystem.h

@@ -0,0 +1,19 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if PLATFORM_WEB
+
+#include "Engine/Platform/Unix/UnixFileSystem.h"
+
+/// <summary>
+/// Web platform implementation of filesystem service.
+/// </summary>
+class FLAXENGINE_API WebFileSystem : public UnixFileSystem
+{
+public:
+    // [UnixFileSystem]
+    static void GetSpecialFolderPath(const SpecialFolder type, String& result);
+};
+
+#endif

Source/Engine/Platform/Web/WebPlatform.cpp

@@ -0,0 +1,295 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#if PLATFORM_WEB
+
+#include "WebPlatform.h"
+#include "WebFileSystem.h"
+#include "Engine/Core/Log.h"
+#include "Engine/Core/Types/String.h"
+#include "Engine/Core/Types/Version.h"
+#include "Engine/Core/Types/Guid.h"
+#include "Engine/Core/Collections/Dictionary.h"
+#include "Engine/Platform/CPUInfo.h"
+#include "Engine/Platform/MemoryStats.h"
+#if !BUILD_RELEASE
+#include "Engine/Core/Types/StringView.h"
+#include "Engine/Utilities/StringConverter.h"
+#endif
+#include <chrono>
+#include <unistd.h>
+#include <emscripten/emscripten.h>
+#include <emscripten/threading.h>
+#include <emscripten/version.h>
+#include <emscripten/heap.h>
+
+namespace
+{
+    CPUInfo Cpu;
+};
+
+void WebFileSystem::GetSpecialFolderPath(const SpecialFolder type, String& result)
+{
+    result = TEXT("/");
+}
+
+String WebPlatform::GetSystemName()
+{
+    return TEXT("Browser");
+}
+
+Version WebPlatform::GetSystemVersion()
+{
+    return Version(1, 0);
+}
+
+CPUInfo WebPlatform::GetCPUInfo()
+{
+    return Cpu;
+}
+
+MemoryStats WebPlatform::GetMemoryStats()
+{
+    // Mock memory stats
+    MemoryStats result;
+    result.TotalPhysicalMemory = emscripten_get_heap_max();
+    result.UsedPhysicalMemory = emscripten_get_heap_size();
+    result.TotalVirtualMemory = 2ull * 1024 * 1024 * 1024; // Max 2GB
+    result.UsedVirtualMemory = result.UsedPhysicalMemory;
+    result.ProgramSizeMemory = 0;
+    return result;
+}
+
+ProcessMemoryStats WebPlatform::GetProcessMemoryStats()
+{
+    // Mock memory stats
+    ProcessMemoryStats result;
+    result.UsedPhysicalMemory = 1 * 1024 * 1024;
+    result.UsedVirtualMemory = result.UsedPhysicalMemory;
+    return result;
+}
+
+void WebPlatform::SetThreadPriority(ThreadPriority priority)
+{
+    // Not supported
+}
+
+void WebPlatform::SetThreadAffinityMask(uint64 affinityMask)
+{
+    // Not supported
+}
+
+void WebPlatform::Sleep(int32 milliseconds)
+{
+    //emscripten_sleep(milliseconds);
+    emscripten_thread_sleep(milliseconds);
+}
+
+void WebPlatform::Yield()
+{
+    Sleep(0);
+}
+
+double WebPlatform::GetTimeSeconds()
+{
+    double time = emscripten_get_now();
+    return time * 0.001;
+}
+
+uint64 WebPlatform::GetTimeCycles()
+{
+    return (uint64)(emscripten_get_now() * 1000.0);
+}
+
+void WebPlatform::GetSystemTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond)
+{
+    // Get local time
+    using namespace std::chrono;
+    system_clock::time_point now = system_clock::now();
+    time_t tt = system_clock::to_time_t(now);
+    tm time = *localtime(&tt);
+
+    // Extract time
+    year = time.tm_year + 1900;
+    month = time.tm_mon + 1;
+    dayOfWeek = time.tm_wday;
+    day = time.tm_mday;
+    hour = time.tm_hour;
+    minute = time.tm_min;
+    second = time.tm_sec;
+    millisecond = (int64)emscripten_get_now() % 1000; // Fake it based on other timer
+}
+
+void WebPlatform::GetUTCTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond)
+{
+    // Get UTC time
+    using namespace std::chrono;
+    system_clock::time_point now = system_clock::now();
+    time_t tt = system_clock::to_time_t(now);
+    tm time = *gmtime(&tt);
+
+    // Extract time
+    year = time.tm_year + 1900;
+    month = time.tm_mon + 1;
+    dayOfWeek = time.tm_wday;
+    day = time.tm_mday;
+    hour = time.tm_hour;
+    minute = time.tm_min;
+    second = time.tm_sec;
+    millisecond = (int64)emscripten_get_now() % 1000; // Fake it based on other timer
+}
+
+#if !BUILD_RELEASE
+
+void WebPlatform::Log(const StringView& msg)
+{
+    const StringAsANSI<512> msgAnsi(*msg, msg.Length());
+
+    // Fix % characters that should not be formatted
+    auto buffer = (char*)msgAnsi.Get();
+    for (int32 i = 0; buffer[i]; i++)
+    {
+        if (buffer[i] == '%')
+            buffer[i] = 'p';
+    }
+
+    emscripten_log(EM_LOG_CONSOLE, buffer);
+}
+
+bool WebPlatform::IsDebuggerPresent()
+{
+    return false;
+}
+
+#endif
+
+String WebPlatform::GetComputerName()
+{
+    return TEXT("Web");
+}
+
+bool WebPlatform::GetHasFocus()
+{
+    return true;
+}
+
+String WebPlatform::GetMainDirectory()
+{
+    return TEXT("/");
+}
+
+String WebPlatform::GetExecutableFilePath()
+{
+    return TEXT("/index.html");
+}
+
+Guid WebPlatform::GetUniqueDeviceId()
+{
+    return Guid(1, 2, 3, 4);
+}
+
+String WebPlatform::GetWorkingDirectory()
+{
+    return GetMainDirectory();
+}
+
+bool WebPlatform::SetWorkingDirectory(const String& path)
+{
+    return true;
+}
+
+bool WebPlatform::Init()
+{
+    if (PlatformBase::Init())
+        return true;
+
+    // Set info about the CPU
+    Platform::MemoryClear(&Cpu, sizeof(Cpu));
+    Cpu.ProcessorPackageCount = 1;
+    Cpu.ProcessorCoreCount = Math::Min(emscripten_num_logical_cores(), PLATFORM_THREADS_LIMIT);
+    Cpu.LogicalProcessorCount = Cpu.ProcessorCoreCount;
+    Cpu.ClockSpeed = GetClockFrequency();
+
+    return false;
+}
+
+void WebPlatform::LogInfo()
+{
+    PlatformBase::LogInfo();
+
+#ifdef __EMSCRIPTEN_major__
+    LOG(Info, "Emscripten {}.{}.{}", __EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__);
+#elif defined(__EMSCRIPTEN_MAJOR__)
+    LOG(Info, "Emscripten {}.{}.{}", __EMSCRIPTEN_MAJOR__, __EMSCRIPTEN_MINOR__, __EMSCRIPTEN_TINY__);
+#else
+    LOG(Info, "Emscripten");
+#endif
+#ifdef __EMSCRIPTEN_PTHREADS__
+    LOG(Info, "Threading: pthreads");
+#else
+    LOG(Info, "Threading: disabled");
+#endif
+}
+
+void WebPlatform::Tick()
+{
+}
+
+void WebPlatform::Exit()
+{
+}
+
+extern char** environ;
+
+void WebPlatform::GetEnvironmentVariables(Dictionary<String, String, HeapAllocation>& result)
+{
+    char** s = environ;
+    for (; *s; s++)
+    {
+        char* var = *s;
+        int32 split = -1;
+        for (int32 i = 0; var[i]; i++)
+        {
+            if (var[i] == '=')
+            {
+                split = i;
+                break;
+            }
+        }
+        if (split == -1)
+            result[String(var)] = String::Empty;
+        else
+            result[String(var, split)] = String(var + split + 1);
+    }
+}
+
+bool WebPlatform::GetEnvironmentVariable(const String& name, String& value)
+{
+    char* env = getenv(StringAsANSI<>(*name).Get());
+    if (env)
+    {
+        value = String(env);
+        return false;
+    }
+    return true;
+}
+
+bool WebPlatform::SetEnvironmentVariable(const String& name, const String& value)
+{
+    return setenv(StringAsANSI<>(*name).Get(), StringAsANSI<>(*value).Get(), true) != 0;
+}
+
+void* WebPlatform::LoadLibrary(const Char* filename)
+{
+    return nullptr;
+}
+
+void WebPlatform::FreeLibrary(void* handle)
+{
+}
+
+void* WebPlatform::GetProcAddress(void* handle, const char* symbol)
+{
+    return nullptr;
+}
+
+#endif

Source/Engine/Platform/Web/WebPlatform.h

@@ -0,0 +1,119 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if PLATFORM_WEB
+
+#include "../Unix/UnixPlatform.h"
+#ifdef __EMSCRIPTEN_PTHREADS__
+#include <pthread.h>
+#endif
+
+/// <summary>
+/// The Web platform implementation and application management utilities.
+/// </summary>
+class FLAXENGINE_API WebPlatform : public UnixPlatform
+{
+public:
+    // [UnixPlatform]
+    FORCE_INLINE static void MemoryBarrier()
+    {
+#ifdef __EMSCRIPTEN_PTHREADS__
+        // Fake a fence with an arbitrary atomic operation (from emscripten_atomic_fence to avoid including it for less header bloat)
+        uint8 temp = 0;
+        __c11_atomic_fetch_or((_Atomic uint8*)&temp, 0, __ATOMIC_SEQ_CST);
+#endif
+    }
+    FORCE_INLINE static void MemoryPrefetch(void const* ptr)
+    {
+        __builtin_prefetch(static_cast<char const*>(ptr));
+    }
+    FORCE_INLINE static int64 InterlockedExchange(int64 volatile* dst, int64 exchange)
+    {
+        return __sync_lock_test_and_set(dst, exchange);
+    }
+    FORCE_INLINE static int32 InterlockedCompareExchange(int32 volatile* dst, int32 exchange, int32 comperand)
+    {
+        return __sync_val_compare_and_swap(dst, comperand, exchange);
+    }
+    FORCE_INLINE static int64 InterlockedCompareExchange(int64 volatile* dst, int64 exchange, int64 comperand)
+    {
+        return __sync_val_compare_and_swap(dst, comperand, exchange);
+    }
+    FORCE_INLINE static int64 InterlockedIncrement(int64 volatile* dst)
+    {
+        return __sync_add_and_fetch(dst, 1);
+    }
+    FORCE_INLINE static int64 InterlockedDecrement(int64 volatile* dst)
+    {
+        return __sync_sub_and_fetch(dst, 1);
+    }
+    FORCE_INLINE static int64 InterlockedAdd(int64 volatile* dst, int64 value)
+    {
+        return __sync_fetch_and_add(dst, value);
+    }
+    FORCE_INLINE static int32 AtomicRead(int32 const volatile* dst)
+    {
+        int32 result;
+        __atomic_load(dst, &result, __ATOMIC_SEQ_CST);
+        return result;
+    }
+    FORCE_INLINE static int64 AtomicRead(int64 const volatile* dst)
+    {
+        int64 result;
+        __atomic_load(dst, &result, __ATOMIC_SEQ_CST);
+        return result;
+    }
+    FORCE_INLINE static void AtomicStore(int32 volatile* dst, int32 value)
+    {
+        __atomic_store(dst, &value, __ATOMIC_SEQ_CST);
+    }
+    FORCE_INLINE static void AtomicStore(int64 volatile* dst, int64 value)
+    {
+        __atomic_store(dst, &value, __ATOMIC_SEQ_CST);
+    }
+    FORCE_INLINE static uint64 GetCurrentThreadID()
+    {
+#ifdef __EMSCRIPTEN_PTHREADS__
+        return (uint64)pthread_self();
+#else
+        return 1;
+#endif
+    }
+    static String GetSystemName();
+    static Version GetSystemVersion();
+    static CPUInfo GetCPUInfo();
+    static MemoryStats GetMemoryStats();
+    static ProcessMemoryStats GetProcessMemoryStats();
+    static void SetThreadPriority(ThreadPriority priority);
+    static void SetThreadAffinityMask(uint64 affinityMask);
+    static void Sleep(int32 milliseconds);
+    static void Yield();
+    static double GetTimeSeconds();
+    static uint64 GetTimeCycles();
+    static void GetSystemTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond);
+    static void GetUTCTime(int32& year, int32& month, int32& dayOfWeek, int32& day, int32& hour, int32& minute, int32& second, int32& millisecond);
+#if !BUILD_RELEASE
+    static void Log(const StringView& msg);
+    static bool IsDebuggerPresent();
+#endif
+    static String GetComputerName();
+    static bool GetHasFocus();
+    static String GetMainDirectory();
+    static String GetExecutableFilePath();
+    static Guid GetUniqueDeviceId();
+    static String GetWorkingDirectory();
+    static bool SetWorkingDirectory(const String& path);
+    static bool Init();
+    static void LogInfo();
+    static void Tick();
+    static void Exit();
+    static void GetEnvironmentVariables(Dictionary<String, String, HeapAllocation>& result);
+    static bool GetEnvironmentVariable(const String& name, String& value);
+    static bool SetEnvironmentVariable(const String& name, const String& value);
+    static void* LoadLibrary(const Char* filename);
+    static void FreeLibrary(void* handle);
+    static void* GetProcAddress(void* handle, const char* symbol);
+};
+
+#endif

Source/Engine/Platform/Web/WebPlatformSettings.h

@@ -0,0 +1,27 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if PLATFORM_WEB || USE_EDITOR
+
+#include "Engine/Core/Config/PlatformSettingsBase.h"
+
+/// <summary>
+/// Web platform settings.
+/// </summary>
+API_CLASS(Sealed, Namespace="FlaxEditor.Content.Settings") class FLAXENGINE_API WebPlatformSettings : public SettingsBase
+{
+    DECLARE_SCRIPTING_TYPE_MINIMAL(WebPlatformSettings);
+    API_AUTO_SERIALIZATION();
+
+    /// <summary>
+    /// Gets the instance of the settings asset (default value if missing). Object returned by this method is always loaded with valid data to use.
+    /// </summary>
+    static WebPlatformSettings* Get();
+};
+
+#if PLATFORM_WEB
+typedef WebPlatformSettings PlatformSettings;
+#endif
+
+#endif

Source/Engine/Platform/Web/WebThread.h

@@ -0,0 +1,63 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if PLATFORM_WEB
+
+#include "../Base/ThreadBase.h"
+
+/// <summary>
+/// Thread object for Web platform.
+/// </summary>
+class FLAXENGINE_API WebThread : public ThreadBase
+{
+public:
+    /// <summary>
+    /// Initializes a new instance of the <see cref="WebThreadThread"/> class.
+    /// </summary>
+    /// <param name="runnable">The runnable.</param>
+    /// <param name="name">The thread name.</param>
+    /// <param name="priority">The thread priority.</param>
+    WebThread(IRunnable* runnable, const String& name, ThreadPriority priority)
+        : ThreadBase(runnable, name, priority)
+    {
+    }
+    
+public:
+    /// <summary>
+    /// Factory method to create a thread with the specified stack size and thread priority
+    /// </summary>
+    /// <param name="runnable">The runnable object to execute</param>
+    /// <param name="name">Name of the thread</param>
+    /// <param name="priority">Tells the thread whether it needs to adjust its priority or not. Defaults to normal priority</param>
+    /// <param name="stackSize">The size of the stack to create. 0 means use the current thread's stack size</param>
+    /// <returns>Pointer to the new thread or null if cannot create it</returns>
+    static WebThread* Create(IRunnable* runnable, const String& name, ThreadPriority priority = ThreadPriority::Normal, uint32 stackSize = 0)
+    {
+        return New<WebThread>(runnable, name, priority);
+    }
+
+public:
+    // [ThreadBase]
+    void Join() override
+    {
+        // TOOD: impl this
+    }
+
+protected:
+    // [ThreadBase]
+    void ClearHandleInternal() override
+    {
+        // TOOD: impl this
+    }
+    void SetPriorityInternal(ThreadPriority priority) override
+    {
+        // TOOD: impl this
+    }
+    void KillInternal(bool waitForJoin) override
+    {
+        // TOOD: impl this
+    }
+};
+
+#endif

Source/Engine/Platform/iOS/iOSPlatformSettings.h

@@ -11,7 +11,7 @@
 /// </summary>
 API_CLASS(Sealed, Namespace="FlaxEditor.Content.Settings") class FLAXENGINE_API iOSPlatformSettings : public ApplePlatformSettings
 {
-    DECLARE_SCRIPTING_TYPE_MINIMAL(ApplePlatformSettings);
+    DECLARE_SCRIPTING_TYPE_MINIMAL(iOSPlatformSettings);
     API_AUTO_SERIALIZATION();
 
     /// <summary>

Source/Engine/Profiler/Profiler.Build.cs

@@ -15,6 +15,8 @@ public class Profiler : EngineModule
     /// <returns>True if use profiler, otherwise false.</returns>
     public static bool Use(BuildOptions options)
     {
+        if (options.Platform.Target == TargetPlatform.Web)
+            return false;
         return options.Configuration != TargetConfiguration.Release || options.Target.IsEditor;
     }
 

Source/Engine/Renderer/ScreenSpaceReflectionsPass.cpp

@@ -304,7 +304,7 @@ GPUTexture* ScreenSpaceReflectionsPass::Render(RenderContext& renderContext, GPU
         // Also for high surface roughness values it adds more blur to the reflection tail which looks more realistic.
 
         // Downscale with gaussian blur
-        auto filterMode = PLATFORM_ANDROID || PLATFORM_IOS || PLATFORM_SWITCH ? MultiScaler::FilterMode::GaussianBlur5 : MultiScaler::FilterMode::GaussianBlur9;
+        auto filterMode = PLATFORM_WEB || PLATFORM_ANDROID || PLATFORM_IOS || PLATFORM_SWITCH ? MultiScaler::FilterMode::GaussianBlur5 : MultiScaler::FilterMode::GaussianBlur9;
         for (int32 mipLevel = 1; mipLevel < colorBufferMips; mipLevel++)
         {
             const int32 mipWidth = Math::Max(colorBufferWidth >> mipLevel, 1);

Source/Engine/Renderer/ShadowsPass.cpp

@@ -784,7 +784,7 @@ void ShadowsPass::SetupLight(ShadowsCustomBuffer& shadows, RenderContext& render
     // Disable cascades blending when baking lightmaps
     if (IsRunningRadiancePass)
         atlasLight.BlendCSM = false;
-#elif PLATFORM_SWITCH || PLATFORM_IOS || PLATFORM_ANDROID
+#elif PLATFORM_WEB || PLATFORM_SWITCH || PLATFORM_IOS || PLATFORM_ANDROID
     // Disable cascades blending on low-end platforms
     atlasLight.BlendCSM = false;
 #endif

Source/Engine/Scripting/Scripting.cpp

@@ -573,6 +573,7 @@ bool Scripting::Load()
     auto* flaxEngineModule = (NativeBinaryModule*)GetBinaryModuleFlaxEngine();
     if (!flaxEngineModule->Assembly->IsLoaded())
     {
+#if USE_CSHARP
         String flaxEnginePath = Globals::BinariesFolder / TEXT("FlaxEngine.CSharp.dll");
 #if USE_MONO_AOT
         if (!FileSystem::FileExists(flaxEnginePath))
@@ -583,6 +584,7 @@ bool Scripting::Load()
             LOG(Error, "Failed to load FlaxEngine C# assembly.");
             return true;
         }
+#endif
         flaxEngineModule->CanReload = false;
         flaxEngineModule->Assembly->_canReload = false;
         onEngineLoaded(flaxEngineModule->Assembly);

Source/Engine/Serialization/JsonTools.cpp

@@ -3,7 +3,6 @@
 #include "JsonTools.h"
 #include "ISerializable.h"
 #include "Engine/Core/Collections/Dictionary.h"
-#include "Engine/Core/Types/CommonValue.h"
 #include "Engine/Core/Types/DateTime.h"
 #include "Engine/Profiler/ProfilerCPU.h"
 #include "Engine/Scripting/ScriptingObjectReference.h"
@@ -284,87 +283,3 @@ DateTime JsonTools::GetDateTime(const Value& value)
 {
     return DateTime(value.GetInt64());
 }
-
-PRAGMA_DISABLE_DEPRECATION_WARNINGS
-#include "Engine/Content/Deprecated.h"
-CommonValue JsonTools::GetCommonValue(const Value& value)
-{
-    // [Deprecated on 31.07.2020, expires on 31.07.2022]
-    MARK_CONTENT_DEPRECATED();
-    CommonValue result;
-    const auto typeMember = value.FindMember("Type");
-    const auto valueMember = value.FindMember("Value");
-    if (typeMember != value.MemberEnd() && typeMember->value.IsInt() && valueMember != value.MemberEnd())
-    {
-        const auto& v = valueMember->value;
-        switch ((CommonType)typeMember->value.GetInt())
-        {
-        case CommonType::Bool:
-            result = v.GetBool();
-            break;
-        case CommonType::Integer:
-            result = v.GetInt();
-            break;
-        case CommonType::Float:
-            result = v.GetFloat();
-            break;
-        case CommonType::Vector2:
-            result = GetFloat2(v);
-            break;
-        case CommonType::Vector3:
-            result = GetFloat3(v);
-            break;
-        case CommonType::Vector4:
-            result = GetFloat4(v);
-            break;
-        case CommonType::Color:
-            result = GetColor(v);
-            break;
-        case CommonType::Guid:
-            result = GetGuid(v);
-            break;
-        case CommonType::String:
-            result = v.GetText();
-            break;
-        case CommonType::Box:
-            result = GetBoundingBox(v);
-            break;
-        case CommonType::Rotation:
-            result = GetQuaternion(v);
-            break;
-        case CommonType::Transform:
-            result = GetTransform(v);
-            break;
-        case CommonType::Sphere:
-            result = GetBoundingSphere(v);
-            break;
-        case CommonType::Rectangle:
-            result = GetRectangle(v);
-            break;
-        case CommonType::Ray:
-            result = GetRay(v);
-            break;
-        case CommonType::Pointer:
-            result = (void*)v.GetInt64();
-            break;
-        case CommonType::Matrix:
-            result = GetMatrix(v);
-            break;
-        case CommonType::Blob:
-        {
-            const int32 length = v.GetStringLength();
-            result.SetBlob(length);
-            Encryption::Base64Decode(v.GetString(), length, result.AsBlob.Data);
-            break;
-        }
-        case CommonType::Object:
-            result = FindObject(GetGuid(v), ScriptingObject::GetStaticClass());
-            break;
-        default:
-            CRASH;
-            break;
-        }
-    }
-    return result;
-}
-PRAGMA_ENABLE_DEPRECATION_WARNINGS