On main: Asset loading

Cargo.toml

@@ -1,4 +1,4 @@
-workspace = { members = [ "./guests/rust/common-api", "./guests/rust/witguest"] }
+workspace = { members = [ "common-api", "witguest"] }
 
 [package]
 name = "wittest"
@@ -8,15 +8,13 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-async-trait = "0.1.83"
+async-trait = "0.1.80"
-tokio = { version = "1.41.1", features = ["full"] }
+tokio = { version = "1.37.0", features = ["full"] }
-wasmtime = "26.0.1"
+wasmtime = "23.0.1"
-wasmtime-wasi = "26.0.1"
+wasmtime-wasi = "23.0.1"
-lyra-ecs = { path = "./lyra-engine/crates/lyra-ecs" }
+lyra-ecs = { path = "./lyra-engine/lyra-ecs" }
-lyra-reflect = { path = "./lyra-engine/crates/lyra-reflect" }
-lyra-engine = { path = "./lyra-engine" }
 slab = "0.4.9"
-thiserror = "2.0.0"
+thiserror = "1.0.58"
 
-common-api = { path = "./guests/rust/common-api" }
+common-api = { path = "./common-api" }
-anyhow = "1.0.93"
+anyhow = "1.0.86"

common-api/src/lib.rs

@@ -8,9 +8,6 @@ pub use component::*;
 mod bundle;
 pub use bundle::*;
 
-pub mod resource;
-pub use resource::EcsResource;
-
 pub mod math;
 
 pub use api_derive as macros;
@@ -32,12 +29,6 @@ impl WasmTypeId {
             inner: unsafe { mem::transmute(TypeId::of::<T>()) },
         }
     }
-
-    pub const fn from_raw(id: u128) -> Self {
-        Self {
-            inner: unsafe { mem::transmute(id) },
-        }
-    }
 }
 
 enum OwnedBorrow<'a, T> {
@@ -130,11 +121,6 @@ impl<'a> World<'a> {
         self.inner.view_one(en, &infos)
             .map(|bytes| B::from_bytes(bytes))
     }
-
-    pub fn get_resource<T: EcsResource>(&self) -> Option<T> {
-        let res = self.inner.get_resource(T::TYPE_ID);
-        T::from_wasm_result(&res)
-    }
 }
 
 pub struct View<B: Bundle> {

common-api/wit/asset.wit

@@ -0,0 +1,18 @@
+interface asset {
+    resource handle {
+        set-watched: func(watched: bool);
+        version: func() -> u64;
+        uuid: func() -> string;
+        path: func() -> string;
+        is-watched: func() -> bool;
+        is-loaded: func() -> bool;
+        wait-for-load: func();
+        wait-recurse-dependencies-load: func();
+    }
+
+    resource asset-manager {
+        constructor();
+
+        request: func(path: string) -> handle;
+    }
+}

common-api/wit/ecs.wit

@@ -37,19 +37,6 @@ interface ecs {
         next: func() -> option<tuple<entity, list<u8>>>;
     }
 
-    /// An resource that can be "downcasted" to a specific type.
-    /// 
-    /// You can use `T.from-ecs-resource` to "downcast" the type
-    resource ecs-resource {
-
-    }
-
-    variant world-resource-result {
-        none,
-        wasm-resource(ecs-resource),
-        bytes(list<u8>),
-    }
-
     resource ecs-world {
         constructor();
 
@@ -89,8 +76,6 @@ interface ecs {
         /// Returns: A row of components serialized as bytes. The buffer is tighly packed.
         view-one: func(en: entity, component-infos: list<component-info>) -> option<list<u8>>;
 
-        get-resource: func(type-id: wasm-type-id) -> world-resource-result;
-
         //with_system: func(stage: string, component-infos: list<component-info>, system: func(components: list<u8>));
     }
 }

common-api/wit/world.wit

@@ -2,5 +2,4 @@ package lyra:api;
 
 world imports {
     import ecs;
-    import asset;
 }

csharp-guests.sln

@@ -1,26 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dotnet-guest-test", "guests\csharp\dotnet-guest-test\dotnet-guest-test.csproj", "{68F96E6F-472F-409E-B36E-9C5E7206CCDE}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{A4003DF0-C8FF-4A50-A66C-9777E900ED21}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{A4003DF0-C8FF-4A50-A66C-9777E900ED21}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{A4003DF0-C8FF-4A50-A66C-9777E900ED21}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{A4003DF0-C8FF-4A50-A66C-9777E900ED21}.Release|Any CPU.Build.0 = Release|Any CPU
-		{68F96E6F-472F-409E-B36E-9C5E7206CCDE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{68F96E6F-472F-409E-B36E-9C5E7206CCDE}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{68F96E6F-472F-409E-B36E-9C5E7206CCDE}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{68F96E6F-472F-409E-B36E-9C5E7206CCDE}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-EndGlobal

guests/csharp/dotnet-guest-test/.gitignore

@@ -1,2 +0,0 @@
-bin
-obj

guests/csharp/dotnet-guest-test/ExampleWorldImpl.cs

@@ -1,53 +0,0 @@
-namespace ExampleWorld;
-
-using ExampleWorld.wit.imports.lyra.api;
-using LyraApi.Asset;
-using LyraApi.Ecs;
-using LyraApi.Engine;
-using LyraApi.Math;
-
-public class ExampleWorldImpl : IExampleWorld
-{
-    public static void OnInit(IEcs.EcsWorld gameWorld, IEcs.Entity owningEntity)
-    {
-        var world = new World(gameWorld);
-        Entity entity = world.Spawn(new Vec3(7.0f, 30.0f, 18.0f));
-        Console.WriteLine("C#:   Spawned entity with id {0}", entity.Id);
-
-        foreach ((Entity en, Vec3 comp) in world.View<Vec3>())
-        {
-            Console.WriteLine("C#:   Found entity at ({0}, {1}, {2})", comp.X, comp.Y, comp.Z);
-        }
-
-        /* DeltaTime? dt = world.GetResource<DeltaTime>();
-        if (dt != null) {
-            Console.WriteLine($"C#:   Delta time: {dt?.Seconds:0.##}");
-        } */
-
-        AssetManager? man = world.GetResource<AssetManager>();
-        if (man != null) {
-            Handle<ImageHandle> han = man.Request<ImageHandle>("test_assets/white.png");
-            Console.WriteLine($"C#:   Asset uuid: {han.Uuid}");
-
-            // wait for asset to load before trying to get the data
-            han.WaitForLoadRecursive();
-            if (!han.IsLoaded)
-            {
-                Console.WriteLine("C#:   Asset is still not loaded, even after waiting!");
-            }
-
-            // will be null if the image hasn't loaded yet
-            ImageHandle? img = han.GetData();
-            Console.WriteLine($"C#:   Size of image: ({img?.Width}, {img?.Height})");
-        }
-        else
-        {
-            Console.WriteLine("C#:   No manager found");
-        }
-    }
-
-    public static void OnUpdate(IEcs.EcsWorld gameWorld, IEcs.Entity owningEntity)
-    {
-        throw new NotImplementedException();
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Asset/AssetManager.cs

@@ -1,38 +0,0 @@
-using LyraApi.Ecs;
-using ExampleWorld.wit.imports.lyra.api;
-using System.Numerics;
-
-namespace LyraApi.Asset;
-
-public class AssetManager(IAsset.AssetManager assetManager) : IResource
-{
-    internal IAsset.AssetManager inner = assetManager;
-
-    public static ulong TypeId => 567234789345;
-
-    public static object? FromWasmResult(IEcs.WorldResourceResult result)
-    {
-        switch (result.Tag)
-        {
-            case IEcs.WorldResourceResult.NONE:
-                return null;
-            case IEcs.WorldResourceResult.WASM_RESOURCE:
-                var handle = IAsset.AssetManager.FromEcsResource(result.AsWasmResource) ?? throw new MismatchedResourceResultException();
-                return new AssetManager(handle);
-            case IEcs.WorldResourceResult.BYTES:
-                return null;
-            default:
-                return null;
-        }
-    }
-
-    public UntypedHandle Request(string path)
-    {
-        return new UntypedHandle(inner.Request(path));
-    }
-
-    public Handle<T> Request<T>(string path) where T : IAssetHandle
-    {
-        return Request(path).AsHandle<T>();
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Asset/Handle.cs

@@ -1,34 +0,0 @@
-namespace LyraApi.Asset;
-
-public class Handle<T>(UntypedHandle handle) where T : IAssetHandle
-{
-    internal UntypedHandle inner = handle;
-
-    public bool Watched { get => inner.Watched; }
-    public ulong Version { get => inner.Version; }
-    public Guid Uuid { get => inner.Uuid; }
-    public string? Path { get => inner.Path; }
-    public bool IsLoaded { get => inner.IsLoaded; }
-
-    public void WaitForLoad()
-    {
-        inner.WaitForLoad();
-    }
-
-    public void WaitForLoadRecursive()
-    {
-        inner.WaitForLoadRecursive();
-    }
-
-    public T? GetData()
-    {
-        if (IsLoaded)
-        {
-            return (T?)T.FromRawHandle(inner);
-        }
-        else
-        {
-            return default;
-        }
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Asset/IAssetHandle.cs

@@ -1,6 +0,0 @@
-namespace LyraApi.Asset;
-
-public interface IAssetHandle
-{
-    public abstract static object? FromRawHandle(UntypedHandle untypedHandle);
-}

guests/csharp/dotnet-guest-test/LyraApi/Asset/ImageHandle.cs

@@ -1,28 +0,0 @@
-using ExampleWorld.wit.imports.lyra.api;
-
-namespace LyraApi.Asset;
-
-public class ImageHandle(IAsset.ImageHandle handle) : IAssetHandle
-{
-    internal IAsset.ImageHandle inner = handle;
-
-    public uint? Height => inner.Height();
-    public uint? Width => inner.Width();
-
-    public static object? FromRawHandle(UntypedHandle untypedHandle)
-    {
-        var handle = IAsset.ImageHandle.FromRawHandle(untypedHandle.inner);
-        return handle != null ? new ImageHandle(handle) : null;
-    }
-
-    /// <summary>
-    /// Get the image's pixels as native endian bytes.
-    /// </summary>
-    /// 
-    /// Keep in mind that this does copy the image's pixels from the host.
-    /// This is pretty slow.
-    public byte[]? GetImageBytes()
-    {
-        return inner.GetBytes();
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Asset/UntypedHandle.cs

@@ -1,29 +0,0 @@
-using ExampleWorld.wit.imports.lyra.api;
-
-namespace LyraApi.Asset;
-
-public class UntypedHandle(IAsset.AssetHandle handle)
-{
-    internal IAsset.AssetHandle inner = handle;
-
-    public bool Watched { get => inner.IsWatched(); }
-    public ulong Version { get => inner.Version(); }
-    public Guid Uuid { get => Guid.Parse(inner.Uuid()); }
-    public string? Path { get => inner.Path(); }
-    public bool IsLoaded { get => inner.IsLoaded(); }
-
-    public void WaitForLoad()
-    {
-        inner.WaitForLoad();
-    }
-
-    public void WaitForLoadRecursive()
-    {
-        inner.WaitRecurseDependenciesLoad();
-    }
-
-    public Handle<T> AsHandle<T>() where T : IAssetHandle
-    {
-        return new Handle<T>(this);
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/Component.cs

@@ -1,21 +0,0 @@
-using System.Reflection;
-using ExampleWorld.wit.imports.lyra.api;
-using LyraApi.Ecs;
-
-public class Component(string hostName, ulong hostSize, ulong hostAlignment, ulong typeId)
-{
-    public string HostName { get; } = hostName;
-    public ulong HostSize { get; } = hostSize;
-    public ulong HostAlignment { get; } = hostAlignment;
-    public ulong TypeId { get; } = typeId;
-
-    public static Component FromComponent<T>() where T : IComponent
-    {
-        return new Component(T.HostName, T.HostSize, T.HostAlignment, T.TypeId);
-    }
-
-    public ComponentInfo GetComponentInfo()
-    {
-        return new ComponentInfo(HostName, HostSize, HostAlignment, TypeId);
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/ComponentInfo.cs

@@ -1,31 +0,0 @@
-using ExampleWorld.wit.imports.lyra.api;
-
-namespace LyraApi.Ecs;
-
-public readonly struct ComponentInfo
-{
-    internal readonly IEcs.ComponentInfo info;
-
-    public readonly string? HostName => info.hostName;
-    public readonly ulong Size => info.size;
-    public readonly ulong Alignment => info.alignment;
-    public readonly ulong TypeId => info.typeId.inner.Item1;
-
-    public ComponentInfo(IEcs.ComponentInfo info)
-    {
-        this.info = info;
-    }
-
-    public ComponentInfo(string hostName, ulong size, ulong alignment, ulong typeId)
-    {
-        var wasmTypeId = new IEcs.WasmTypeId((typeId, 0));
-        this.info = new IEcs.ComponentInfo(hostName, size, alignment, wasmTypeId);
-    }
-
-    public static ComponentInfo FromType<T>() where T : IComponent
-    {
-        var typeId = new IEcs.WasmTypeId((T.TypeId, 0));
-        var info = new IEcs.ComponentInfo(T.HostName, T.HostSize, T.HostAlignment, typeId);
-        return new ComponentInfo(info);
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/Entity.cs

@@ -1,11 +0,0 @@
-namespace LyraApi.Ecs;
-using ExampleWorld.wit.imports.lyra.api;
-
-public class Entity(IEcs.Entity entity)
-{
-    internal IEcs.Entity Inner { get; set; } = entity;
-
-    public ulong Id { get => Inner.id.id; }
-    public ulong Generation { get => Inner.generation; }
-
-}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/IComponent.cs

@@ -1,14 +0,0 @@
-using System.Data.SqlTypes;
-using ExampleWorld.wit.imports.lyra.api;
-
-namespace LyraApi.Ecs;
-
-public interface IComponent
-{
-    public abstract static string HostName { get; }
-    public abstract static ulong HostSize { get; }
-    public abstract static ulong HostAlignment { get; }
-    public abstract static ulong TypeId { get; }
-
-    public abstract static object? TakeFromBytes(byte[] bytes);
-}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/IResource.cs

@@ -1,12 +0,0 @@
-using static ExampleWorld.wit.imports.lyra.api.IEcs;
-
-namespace LyraApi.Ecs;
-
-public interface IResource
-{
-    public abstract static ulong TypeId { get; }
-
-    public abstract static object? FromWasmResult(WorldResourceResult result);
-}
-
-public class MismatchedResourceResultException : Exception {}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/View.cs

@@ -1,20 +0,0 @@
-using System.ComponentModel;
-using ExampleWorld;
-
-namespace LyraApi.Ecs;
-
-public class View
-{
-    internal List<ComponentInfo> infos;
-
-    private View(List<ComponentInfo> infos)
-    {
-        this.infos = infos;
-    }
-
-    public static View Create<T1>() where T1 : IComponent
-    {
-        List<ComponentInfo> infos = [ComponentInfo.FromType<T1>()];
-        return new View(infos);
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/ViewResult.cs

@@ -1,32 +0,0 @@
-using System.Runtime.InteropServices.Swift;
-using ExampleWorld.wit.imports.lyra.api;
-
-namespace LyraApi.Ecs;
-
-public class ViewResult
-{
-    private List<Component> components;
-    private IEcs.EcsDynamicView inner;
-
-    internal ViewResult(List<Component> components, IEcs.EcsDynamicView inner)
-    {
-        this.components = components;
-        this.inner = inner;
-    }
-
-    public IEnumerable<(Entity, T1)> Get<T1>() where T1 : IComponent
-    {
-        (IEcs.Entity, byte[])? row = inner.Next();
-
-        if (row is (var entity, byte[] bytes))
-        {
-            byte[] compBytes = bytes.Take((int)T1.HostSize).ToArray();
-            var t1 = (T1?)T1.TakeFromBytes(compBytes);
-
-            if (t1 != null)
-            {
-                yield return (new Entity(entity), t1);
-            }
-        }
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Ecs/World.cs

@@ -1,51 +0,0 @@
-namespace LyraApi.Ecs;
-
-using ExampleWorld.wit.imports.lyra.api;
-using LyraApi;
-using LyraApi.Asset;
-
-public class World(IEcs.EcsWorld world)
-{
-    internal IEcs.EcsWorld inner = world;
-
-    private Entity Spawn(List<IEcs.ComponentInfo> infos, params object[] comps)
-    {
-        byte[] bytes = comps.SelectMany(c => MarshalUtils.GetBytes(c)).ToArray();
-        return new Entity(inner.Spawn(bytes, infos));
-    }
-
-    public Entity Spawn<T1>(T1 c1) where T1 : IComponent
-    {
-        List<IEcs.ComponentInfo> infos = [ComponentInfo.FromType<T1>().info];
-        return Spawn(infos, c1);
-    }
-
-    public IEnumerable<(Entity, T1)> View<T1>() where T1 : IComponent
-    {
-        List<Component> comps = [Component.FromComponent<T1>()];
-        List<IEcs.ComponentInfo> infos = comps.Select(c => c.GetComponentInfo().info).ToList();
-
-        IEcs.EcsDynamicView dynamicView = inner.View(infos);
-        return new ViewResult(comps, dynamicView).Get<T1>();
-    }
-
-    public T? GetResource<T>() where T : IResource
-    {
-        IEcs.WorldResourceResult result = inner.GetResource(Utils.ToWasmTypeId(T.TypeId));
-        return (T?)T.FromWasmResult(result);
-    }
-
-    /* public AssetManager? GetAssetManager()
-    {
-        IAsset.AssetManager? assetManager = IAsset.AssetManager.FromWorld(inner);
-
-        if (assetManager != null)
-        {
-            return new AssetManager(assetManager);
-        }
-        else
-        {
-            return null;
-        }
-    } */
-}

guests/csharp/dotnet-guest-test/LyraApi/Engine/DeltaTime.cs

@@ -1,23 +0,0 @@
-using System.Runtime.InteropServices;
-using LyraApi;
-using LyraApi.Ecs;
-using static ExampleWorld.wit.imports.lyra.api.IEcs;
-
-namespace LyraApi.Engine;
-
-[StructLayout(LayoutKind.Sequential)]
-public struct DeltaTime : IResource {
-    public float Seconds;
-
-    public static ulong TypeId => 83716348954;
-
-    public static object? FromWasmResult(WorldResourceResult result)
-    {
-        return result.Tag switch
-        {
-            WorldResourceResult.NONE | WorldResourceResult.WASM_RESOURCE => null,
-            WorldResourceResult.BYTES => MarshalUtils.FromBytes<DeltaTime>(result.AsBytes),
-            _ => null,
-        };
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/MarshalUtils.cs

@@ -1,55 +0,0 @@
-namespace LyraApi;
-
-using System.Diagnostics.CodeAnalysis;
-using System.Runtime.InteropServices;
-
-public static class MarshalUtils
-{
-    internal struct AlignmentHelper<T> where T : unmanaged
-    {
-#pragma warning disable CS0649 // Field is never assigned to, and will always have its default value 0
-        public byte Padding;
-        public T Target;
-#pragma warning restore CS0649 // Field is never assigned to, and will always have its default value 0
-    }
-
-    public static int AlignmentOf<T>() where T : unmanaged
-    {
-        return (int)Marshal.OffsetOf<AlignmentHelper<T>>(nameof(AlignmentHelper<T>.Target));
-    }
-
-    public static byte[] GetBytes<T>([DisallowNull] T data)
-    {
-        int size = Marshal.SizeOf(data);
-        byte[] arr = new byte[size];
-
-        IntPtr ptr = IntPtr.Zero;
-        try
-        {
-            ptr = Marshal.AllocHGlobal(size);
-            Marshal.StructureToPtr(data, ptr, true);
-            Marshal.Copy(ptr, arr, 0, size);
-        }
-        finally
-        {
-            Marshal.FreeHGlobal(ptr);
-        }
-        return arr;
-    }
-
-    public static T? FromBytes<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors | DynamicallyAccessedMemberTypes.NonPublicConstructors)] T>(byte[] data)
-    {
-        var ptr = GCHandle.Alloc(data, GCHandleType.Pinned);
-        try
-        {
-            //var res = (T?)Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
-            var res = Marshal.PtrToStructure<T>(ptr.AddrOfPinnedObject());
-            return res;
-        }
-        finally
-        {
-            ptr.Free();
-
-        }
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Math/Vec3.cs

@@ -1,32 +0,0 @@
-using System.Runtime.InteropServices;
-using LyraApi.Ecs;
-
-namespace LyraApi.Math;
-
-[StructLayout(LayoutKind.Sequential)]
-struct Vec3(float x, float y, float z) : IComponent
-{
-    /// <summary>
-    /// The X component.
-    /// </summary>
-    public float X { get; set; } = x;
-    /// <summary>
-    /// The Y component
-    /// </summary>
-    public float Y { get; set; } = y;
-    /// <summary>
-    /// The Z component
-    /// </summary>
-    public float Z { get; set; } = z;
-
-    public static string HostName => "Vec3";
-    public static ulong HostSize => (ulong)Marshal.SizeOf<Vec3>();
-    public static ulong HostAlignment => (ulong)MarshalUtils.AlignmentOf<Vec3>();
-    public static ulong TypeId => 4124409524;
-
-    public static object? TakeFromBytes(byte[] bytes)
-    {
-        byte[] taken = bytes.Take((int)HostSize).ToArray();
-        return MarshalUtils.FromBytes<Vec3>(taken);
-    }
-}

guests/csharp/dotnet-guest-test/LyraApi/Utils.cs

@@ -1,8 +0,0 @@
-using static ExampleWorld.wit.imports.lyra.api.IEcs;
-
-internal static class Utils {
-    public static WasmTypeId ToWasmTypeId(ulong typeId)
-    {
-        return new WasmTypeId((typeId, 0));
-    }
-}

guests/csharp/dotnet-guest-test/dotnet-guest-test.csproj

@@ -1,62 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <OutputType>Library</OutputType>
-    <TargetFramework>net9.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-
-    <RuntimeIdentifier>wasi-wasm</RuntimeIdentifier>
-    <UseAppHost>false</UseAppHost>
-    <PublishTrimmed>true</PublishTrimmed>
-    <InvariantGlobalization>true</InvariantGlobalization>
-    <SelfContained>true</SelfContained>
-    <IlcExportUnmanagedEntrypoints>true</IlcExportUnmanagedEntrypoints>
-
-    <!-- Ignore warning of multiple `PackageReference` items for the `ILCompiler.LLVM` package. -->
-    <NoWarn>$(NoWarn);NU1504</NoWarn>
-  </PropertyGroup>
-
-  <!-- Copy WIT files from LyraApi to lyra-api wit folder. -->
-  <Target Name="CopyLyraApiWit" BeforeTargets="WitCompile_InvokeTool">
-    <ItemGroup>
-      <MyFiles Include="..\..\rust\common-api\wit\**\*.wit" />
-    </ItemGroup>
-    <Copy SourceFiles="@(MyFiles)" DestinationFolder="wit\deps\lyraapi\%(RecursiveDir)" />
-  </Target>
-
-  <Target Name="CopyComponentGuestWit" BeforeTargets="WitCompile_InvokeTool">
-    <Copy SourceFiles="..\..\rust\witguest\wit\world.wit" DestinationFiles="wit\world.wit" />
-  </Target>
-
-  <!-- Remove bindgen of LyraApi WIT .-->
-  <!-- <Target Name="RemoveBindgenLyraApi" AfterTargets="WitCompile_InvokeTool">
-    <ItemGroup>
-      <FilesToDelete Include="obj\Debug\net*\wasi-wasm\wit_bindgen\*.lyra.api.*.cs"/>
-    </ItemGroup>
-    <Delete Files="@(FilesToDelete)" />
-  </Target> -->
-
-  <!-- Reuse bindgen from LyraApi package instead of using local bindgen. -->
-  <!-- <Target Name="UpdateLyraApiReferences" AfterTargets="WitCompile_InvokeTool; RemoveBindgenLyraApi">
-    <Exec Condition="'$(OS)' == 'Unix'" Command="find obj/Debug -type f -wholename '*wit_bindgen/*.cs' -exec sed -i 's/ExampleWorld\.wit\.imports\.lyra\.api/ImportsWorld.wit.imports.lyra.api/g' {} \;" />
-    <Exec Condition="'$(OS)' == 'Windows_NT'" Command="powershell -Command &quot;Get-ChildItem -Path 'obj\Debug' -Recurse -Filter '*.cs' ^ 
-        | Where-Object { $_.FullName -match 'wit_bindgen' } ^ 
-        | ForEach-Object { (Get-Content -Path $_.FullName) -replace 'ExampleWorld\.wit\.imports\.lyra\.api', 'ImportsWorld.wit.imports.lyra.api' ^ 
-        | Set-Content -Path $_.FullName }&quot;" />
-  </Target> -->
-
-  <ItemGroup>
-    <PackageReference Include="BytecodeAlliance.Componentize.DotNet.Wasm.SDK" Version="0.4.0-preview00007" />
-    <PackageReference Include="runtime.linux-x64.Microsoft.DotNet.ILCompiler.LLVM" Version="10.0.0-alpha.1.24531.4" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Wit Remove="**\*.wit"  />
-    <Wit Include="wit" World="example" />
-  </ItemGroup>
-
-  <!-- <ItemGroup>
-    <ProjectReference Include="..\LyraApi\LyraApi.csproj" />
-  </ItemGroup> -->
-</Project>

guests/csharp/dotnet-guest-test/nuget.config

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <!--To inherit the global NuGet package sources remove the <clear/> line below -->
-    <clear />
-    <add key="dotnet-experimental" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-experimental/nuget/v3/index.json" />
-    <add key="nuget" value="https://api.nuget.org/v3/index.json" />
-  </packageSources>
-</configuration>

guests/csharp/dotnet-guest-test/wit/deps/lyraapi/asset.wit

@@ -1,26 +0,0 @@
-interface asset {
-    use ecs.{ecs-world, ecs-resource};
-
-    resource asset-handle {
-        version: func() -> u64;
-        uuid: func() -> string;
-        path: func() -> option<string>;
-        is-watched: func() -> bool;
-        is-loaded: func() -> bool;
-        wait-for-load: func();
-        wait-recurse-dependencies-load: func();
-    }
-
-    resource image-handle {
-        from-raw-handle: static func(raw-handle: borrow<asset-handle>) -> option<image-handle>;
-
-        height: func() -> option<u32>;
-        width: func() -> option<u32>;
-        get-bytes: func() -> option<list<u8>>;
-    }
-
-    resource asset-manager {
-        from-ecs-resource: static func(w: borrow<ecs-resource>) -> option<asset-manager>;
-        request: func(path: string) -> asset-handle;
-    }
-}

guests/csharp/dotnet-guest-test/wit/deps/lyraapi/ecs.wit

@@ -1,96 +0,0 @@
-package lyra:api;
-
-interface ecs {
-    record entity-id {
-        id: u64,
-    }
-
-    record entity {
-        id: entity-id,
-        generation: u64,
-    }
-
-    record wasm-type-id {
-        // represents a u128, can be converted into that with mem::transmute
-        inner: tuple<u64, u64>,
-    }
-
-    record component-info {
-        host-name: option<string>,
-        /// The size of the component in memory.
-        size: u64,
-        /// The alignment of the component in memory.
-        alignment: u64,
-        /// The type id of the component.
-        ///
-        /// This must be unique between component types since its used to identify the components
-        /// in spawning and querying.
-        type-id: wasm-type-id,
-    }
-
-    resource ecs-dynamic-view {
-        constructor(wrld: borrow<ecs-world>, component-infos: list<component-info>);
-
-        /// Get the bytes of the next row in the view.
-        /// 
-        /// A row contains multiple component serialized as bytes. The buffer is tighly packed.
-        next: func() -> option<tuple<entity, list<u8>>>;
-    }
-
-    /// An resource that can be "downcasted" to a specific type.
-    /// 
-    /// You can use `T.from-ecs-resource` to "downcast" the type
-    resource ecs-resource {
-
-    }
-
-    variant world-resource-result {
-        none,
-        wasm-resource(ecs-resource),
-        bytes(list<u8>),
-    }
-
-    resource ecs-world {
-        constructor();
-
-        /// Spawn an entity.
-        ///
-        /// Parameters:
-        /// * `components`: A tightly packed byte buffer containing the components to spawn
-        /// with the entity. This expects the components in the same order of `component-infos`.
-        /// * `component-infos`: A list of `component-infos` uses to identify the components
-        /// and specify the layouts of them.
-        spawn: func(components: list<u8>, component-infos: list<component-info>) -> entity;
-
-        /// Insert components into an existing entity.
-        /// 
-        /// Parameters:
-        /// * `en`: The entity to insert into.
-        /// * `components`: A tightly packed byte buffer containing the components to spawn
-        /// with the entity. This expects the components in the same order of `component-infos`.
-        /// * `component-infos`: A list of `component-infos` uses to identify the components
-        /// and specify the layouts of them.
-        insert: func(en: entity, components: list<u8>, component-infos: list<component-info>);
-
-        /// Query for a list of entities and their components.
-        ///
-        /// Parameters:
-        /// * `component-infos`: The `component-info`'s of the components that you are querying.
-        ///
-        /// Returns: an iterator that returns the byte buffers of each row.
-        view: func(component-infos: list<component-info>) -> ecs-dynamic-view;
-
-        /// Query for components from a single entity.
-        ///
-        /// Parameters:
-        /// * `en`: The entity to query components from.
-        /// * `component-infos`: The `component-info`'s of the components that you are querying.
-        ///
-        /// Returns: A row of components serialized as bytes. The buffer is tighly packed.
-        view-one: func(en: entity, component-infos: list<component-info>) -> option<list<u8>>;
-
-        get-resource: func(type-id: wasm-type-id) -> world-resource-result;
-
-        //with_system: func(stage: string, component-infos: list<component-info>, system: func(components: list<u8>));
-    }
-}

guests/rust/common-api/src/resource/dt.rs

@@ -1,27 +0,0 @@
-use std::ops::Deref;
-
-use crate::lyra::api::ecs::{WasmTypeId, WorldResourceResult};
-use super::EcsResource;
-
-#[derive(Clone, Copy)]
-pub struct DeltaTime(f32);
-
-impl Deref for DeltaTime {
-    type Target = f32;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl EcsResource for DeltaTime {
-    const TYPE_ID: WasmTypeId = WasmTypeId::from_raw(83716348954);
-
-    fn from_wasm_result(result: &WorldResourceResult) -> Option<Self> {
-        match result {
-            WorldResourceResult::None => None,
-            WorldResourceResult::WasmResource(_) => None,
-            WorldResourceResult::Bytes(vec) => Some(Self(*bytemuck::from_bytes::<f32>(&vec))),
-        }
-    }
-}

guests/rust/common-api/src/resource/mod.rs

@@ -1,11 +0,0 @@
-use crate::lyra::api::ecs::{WasmTypeId, WorldResourceResult};
-
-mod dt;
-pub use dt::*;
-
-pub trait EcsResource: Sized {
-    const TYPE_ID: WasmTypeId;
-
-    fn from_wasm_result(result: &WorldResourceResult) -> Option<Self>;
-}
-

guests/rust/common-api/wit/asset.wit

@@ -1,26 +0,0 @@
-interface asset {
-    use ecs.{ecs-world, ecs-resource};
-
-    resource asset-handle {
-        version: func() -> u64;
-        uuid: func() -> string;
-        path: func() -> option<string>;
-        is-watched: func() -> bool;
-        is-loaded: func() -> bool;
-        wait-for-load: func();
-        wait-recurse-dependencies-load: func();
-    }
-
-    resource image-handle {
-        from-raw-handle: static func(raw-handle: borrow<asset-handle>) -> option<image-handle>;
-
-        height: func() -> option<u32>;
-        width: func() -> option<u32>;
-        get-bytes: func() -> option<list<u8>>;
-    }
-
-    resource asset-manager {
-        from-ecs-resource: static func(w: borrow<ecs-resource>) -> option<asset-manager>;
-        request: func(path: string) -> asset-handle;
-    }
-}

guests/rust/witguest/wit/deps/lyraapi/asset.wit

@@ -1,26 +0,0 @@
-interface asset {
-    use ecs.{ecs-world, ecs-resource};
-
-    resource asset-handle {
-        version: func() -> u64;
-        uuid: func() -> string;
-        path: func() -> option<string>;
-        is-watched: func() -> bool;
-        is-loaded: func() -> bool;
-        wait-for-load: func();
-        wait-recurse-dependencies-load: func();
-    }
-
-    resource image-handle {
-        from-raw-handle: static func(raw-handle: borrow<asset-handle>) -> option<image-handle>;
-
-        height: func() -> option<u32>;
-        width: func() -> option<u32>;
-        get-bytes: func() -> option<list<u8>>;
-    }
-
-    resource asset-manager {
-        from-ecs-resource: static func(w: borrow<ecs-resource>) -> option<asset-manager>;
-        request: func(path: string) -> asset-handle;
-    }
-}

guests/rust/witguest/wit/deps/lyraapi/world.wit

@@ -1,6 +0,0 @@
-package lyra:api;
-
-world imports {
-    import ecs;
-    import asset;
-}

guests/rust/witguest/wit/world.wit

@@ -1,21 +0,0 @@
-package component:witguest;
-
-interface math {
-    record vec3 {
-        x: f32,
-        y: f32,
-        z: f32,
-    }
-}
-
-/// An example world for the component to target.
-world example {
-    import math;
-    import lyra:api/asset;
-    use lyra:api/ecs.{ecs-world, entity};
-
-    import host-print: func(msg: string);
-
-    export on-init: func(game-world: borrow<ecs-world>, owning-entity: entity) -> result;
-    export on-update: func(game-world: borrow<ecs-world>, owning-entity: entity) -> result;
-}

lyra-engine

@@ -1 +1 @@
-Subproject commit 62adcf2b50a458314f573425061530d3dc3d25da
+Subproject commit 7ae0eae6ac714d72250149ab6b61a1ac66a5a6a9

mise.toml

@@ -1,2 +0,0 @@
-[tools]
-dotnet = "9.0.100-rc.2.24474.11"

rust-toolchain.toml

@@ -1,2 +1,3 @@
 [toolchain]
 channel = "nightly"
+#targets = [ "x86_64-unknown-linux-gnu" ]

src/asset.rs

@@ -1,145 +0,0 @@
-use async_trait::async_trait;
-use wasmtime::component::Resource as WasmResource;
-
-use crate::{lyra, Imports};
-
-use lyra::api::asset as wasm_asset;
-use lyra::api::ecs as wasm_ecs;
-
-impl wasm_asset::Host for Imports {}
-
-#[async_trait]
-impl wasm_asset::HostAssetManager for Imports {
-    async fn from_ecs_resource(&mut self, res: WasmResource<wasm_ecs::EcsResource>) -> Option<WasmResource<wasm_asset::AssetManager>> {
-        let res_rep = res.rep() as u32;
-        let res = self.resource_data_slab.get_mut(res_rep as _)?;
-        res.borrow += 1;
-
-        // ensure that the 
-        if !res.data.is::<lyra_engine::assets::ResourceManager>() {
-            return None;
-        }
-        
-        Some(WasmResource::new_own(res_rep as _))
-    }
-
-    async fn request(
-        &mut self,
-        this: WasmResource<wasm_asset::AssetManager>,
-        path: String,
-    ) -> WasmResource<wasm_asset::AssetHandle> {
-        let man = self.resource_data_slab.get(this.rep() as _)
-            .unwrap()
-            .data.get::<lyra_engine::assets::ResourceManager>();
-        let res = man.request_raw(&path).unwrap();
-        let rep = self.asset_handles_slab.insert(res);
-        WasmResource::new_own(rep as _)
-    }
-
-    async fn drop(&mut self, this: WasmResource<wasm_asset::AssetManager>) -> wasmtime::Result<()> {
-        self.resource_data_slab.drop_ref(this.rep() as _);
-        Ok(())
-    }
-}
-
-#[async_trait]
-impl wasm_asset::HostAssetHandle for Imports {
-    async fn version(&mut self, this: WasmResource<wasm_asset::AssetHandle>) -> u64 {
-        let han = self.asset_handles_slab.get(this.rep() as _)
-            .unwrap();
-        han.version() as u64
-    }
-
-    async fn uuid(&mut self, this: WasmResource<wasm_asset::AssetHandle>) -> String {
-        let han = self.asset_handles_slab.get(this.rep() as _)
-            .unwrap();
-        han.uuid().to_string()
-    }
-
-    async fn path(&mut self, this: WasmResource<wasm_asset::AssetHandle>) -> Option<String> {
-        let han = self.asset_handles_slab.get(this.rep() as _)
-            .unwrap();
-        han.path()
-    }
-
-    async fn is_watched(&mut self, this: WasmResource<wasm_asset::AssetHandle>) -> bool {
-        let han = self.asset_handles_slab.get(this.rep() as _)
-            .unwrap();
-        han.is_watched()
-    }
-
-    async fn is_loaded(&mut self, this: WasmResource<wasm_asset::AssetHandle>) -> bool {
-        let han = self.asset_handles_slab.get(this.rep() as _)
-            .unwrap();
-        han.is_loaded()
-    }
-
-    async fn wait_for_load(&mut self, this: WasmResource<wasm_asset::AssetHandle>) {
-        let han = self.asset_handles_slab.get(this.rep() as _)
-            .unwrap().clone();
-
-        tokio::task::spawn_blocking(move || {
-            han.wait_for_load();
-        }).await.unwrap();
-    }
-
-    async fn wait_recurse_dependencies_load(
-        &mut self,
-        this: WasmResource<wasm_asset::AssetHandle>,
-    ) {
-        let han = self.asset_handles_slab.get(this.rep() as _)
-            .unwrap().clone();
-
-        tokio::task::spawn_blocking(move || {
-            han.wait_recurse_dependencies_load();
-        }).await.unwrap();
-    }
-
-    async fn drop(&mut self, this: WasmResource<wasm_asset::AssetHandle>) -> wasmtime::Result<()> {
-        self.asset_handles_slab.drop_ref(this.rep() as _);
-        Ok(())
-    }
-}
-
-#[async_trait]
-impl wasm_asset::HostImageHandle for Imports {
-    async fn from_raw_handle(&mut self, raw_handle: WasmResource<wasm_asset::AssetHandle>) -> Option<WasmResource<wasm_asset::ImageHandle>> {
-        let untyped = self.asset_handles_slab.get(raw_handle.rep() as _)?;
-        // image will be none if the asset is not an image asset
-        let image = untyped.as_typed::<lyra_engine::assets::Image>();
-        if image.is_some() {
-            let rep = raw_handle.rep();
-            self.asset_handles_slab.increment_ref(rep as _);
-
-            Some(WasmResource::new_own(rep))
-        } else {
-            None
-        }
-    }
-
-    async fn height(&mut self, this: WasmResource<wasm_asset::ImageHandle>) -> Option<u32> {
-        let untyped = self.asset_handles_slab.get(this.rep() as _)?;
-        let image = untyped.as_typed::<lyra_engine::assets::Image>()?;
-        let image = image.data_ref()?;
-        Some(image.height())
-    }
-
-    async fn width(&mut self, this: WasmResource<wasm_asset::ImageHandle>) -> Option<u32> {
-        let untyped = self.asset_handles_slab.get(this.rep() as _)?;
-        let image = untyped.as_typed::<lyra_engine::assets::Image>()?;
-        let image = image.data_ref()?;
-        Some(image.width())
-    }
-
-    async fn get_bytes(&mut self, this: WasmResource<wasm_asset::ImageHandle>) -> Option<Vec<u8>> {
-        let untyped = self.asset_handles_slab.get(this.rep() as _)?;
-        let image = untyped.as_typed::<lyra_engine::assets::Image>()?;
-        let image = image.data_ref()?;
-        Some(image.as_bytes().to_vec())
-    }
-
-    async fn drop(&mut self, this: WasmResource<wasm_asset::ImageHandle>) -> wasmtime::Result<()> {
-        self.asset_handles_slab.drop_ref(this.rep() as _);
-        Ok(())
-    }
-}

src/main.rs

@@ -1,41 +1,29 @@
 use std::alloc::Layout;
-use std::any::TypeId;
-use std::collections::HashMap;
-use std::ops::Deref;
 use std::ptr::NonNull;
 
 use anyhow::{anyhow, Context};
 use async_trait::async_trait;
-use common_api::math::Vec3;
 use component::witguest::math;
 use ecs::query::dynamic::{DynamicViewState, DynamicViewStateIter, QueryDynamicType};
-use lyra_ecs::{query::dynamic::DynamicViewOne, World};
+use lyra_ecs::query::dynamic::DynamicViewOne;
+use lyra_ecs::World;
 
 use lyra_ecs as ecs;
 
-use lyra_engine::DeltaTime;
-use lyra_reflect::{ReflectedResource, TypeRegistry};
 use slab::Slab;
 use thiserror::Error;
 use wasmtime_wasi::{ResourceTable, WasiCtx, WasiCtxBuilder, WasiView};
 
 use wasmtime::component::Resource as WasmResource;
 
-mod proxy;
-pub use proxy::*;
-
-mod asset;
 #[allow(unused_imports)]
-pub use asset::*;
-
-/* #[allow(unused_imports)]
 pub(crate) mod lyra_engine {
     pub use lyra_ecs as ecs;
-} */
+}
 
 wasmtime::component::bindgen!({
     world: "example",
-    path: "guests/rust/witguest/wit",
+    path: "witguest/wit",
     async: true,
 
     with: {
@@ -86,87 +74,14 @@ struct DynamicViewEntry {
     view: DynamicViewStateIter,
 }
 
-#[derive(Clone)]
-pub(crate) struct RefCountedData<T> {
-    pub borrow: u64,
-    pub data: T,
-}
-
-impl<T> std::ops::Deref for RefCountedData<T> {
-    type Target = T;
-
-    fn deref(&self) -> &Self::Target {
-        &self.data
-    }
-}
-
-impl<T> std::ops::DerefMut for RefCountedData<T> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.data
-    }
-}
-
-/// A Slab of reference counted data.
-pub(crate) struct SlabRcData<T>(Slab<RefCountedData<T>>);
-
-impl<T> From<Slab<RefCountedData<T>>> for SlabRcData<T> {
-    fn from(value: Slab<RefCountedData<T>>) -> Self {
-        Self(value)
-    }
-}
-
-impl<T> std::ops::Deref for SlabRcData<T> {
-    type Target = Slab<RefCountedData<T>>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl<T> std::ops::DerefMut for SlabRcData<T> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}
-
-impl<T> SlabRcData<T> {
-    pub fn with_capacity(capacity: usize) -> Self {
-        Self(Slab::with_capacity(capacity))
-    }
-
-    pub fn increment_ref(&mut self, r: usize) {
-        if let Some(count) = self.0.get_mut(r) {
-            count.borrow += 1;
-        }
-    }
-
-    pub fn drop_ref(&mut self, r: usize) {
-        if let Some(count) = self.0.get_mut(r) {
-            // only remove the data from the slab if this is the only borrow
-            if count.borrow == 1 {
-                self.0.remove(r);
-            } else {
-                count.borrow -= 1;
-            }
-        }
-    }
-
-    /// Insert a new reference counted element into the slab.
-    pub fn insert(&mut self, data: T) -> usize {
-        self.0.insert(RefCountedData { borrow: 1, data, })
-    }
-}
-
 unsafe impl Send for DynamicViewEntry {}
 
-pub struct Imports {
+struct Imports {
-    pub(crate) world_slab: Slab<WorldEntry>,
+    world_slab: Slab<WorldEntry>,
-    pub(crate) world_views_slab: Slab<DynamicViewEntry>,
+    world_views_slab: Slab<DynamicViewEntry>,
-    pub(crate) resource_data_slab: SlabRcData<lyra_ecs::ResourceData>,
-    pub(crate) asset_handles_slab: SlabRcData<lyra_engine::assets::UntypedResHandle>,
 
-    pub(crate) ctx: WasiCtx,
+    ctx: WasiCtx,
-    pub(crate) table: ResourceTable,
+    table: ResourceTable,
 }
 
 impl WasiView for Imports {
@@ -215,24 +130,19 @@ impl wasm_ecs::HostEcsWorld for Imports {
             .ok_or(WasmError::InvalidResourceHandle("EcsWorld"))
             .unwrap();
         let world = &mut world_entry.world;
-        let lookup = world.get_resource::<GuestTypeLookup>().unwrap();
 
         // add the components in the tightly packed `components` buffer into the dynamic bundle
         let mut bundle = ecs::DynamicBundle::new();
         let mut offset = 0;
         for info in infos {
-            // Try to get the Native type's ComponentInfo.
+            // SAFETY: The components are tightly packed, adding the offset to the pointer will
-            let info = lookup.lookup_info(info.into());
-
-            // SAFETY: The components are tightly packed. Adding the offset to the pointer will
             // get the next component in the buffer.
             let data_ptr = unsafe { NonNull::new_unchecked(components.as_mut_ptr().add(offset)) };
             bundle.push_unknown(data_ptr, info.clone().into());
 
-            offset += info.layout().size() as usize;
+            offset += info.size as usize;
         }
 
-        drop(lookup);
         let en = world.spawn(bundle);
         en.into()
     }
@@ -325,47 +235,9 @@ impl wasm_ecs::HostEcsWorld for Imports {
         }
     }
 
-    async fn get_resource(&mut self, this: wasmtime::component::Resource<wasm_ecs::EcsWorld>, type_id: wasm_ecs::WasmTypeId) -> wasm_ecs::WorldResourceResult {
+    fn drop(
-        let world_entry = self
-            .world_slab
-            .get(this.rep() as _)
-            .ok_or(WasmError::InvalidResourceHandle("EcsWorld")).unwrap();
-        let world = &world_entry.world;
-
-        let native_tid = {
-            let native_type = world.get_resource::<GuestTypeLookup>().unwrap();
-            native_type.lookup_type_id(type_id)
-                .expect("failed to find native type id of wasm type")
-        };
-
-        let data = {
-            let reg = world.get_resource::<TypeRegistry>().unwrap();
-            reg.get_type(native_tid).unwrap().clone()
-        };
-
-        let proxy = data.get_data::<WasmProxied>().unwrap().clone();        
-        let refl = data.get_data::<ReflectedResource>().unwrap().clone();
-
-        // SAFETY: reflecting the resource borrows from a different part of the world
-        // then marshaling would.
-        let w = NonNull::from(world);
-        let world = unsafe { w.as_ref() };
-        let refl = refl.reflect(world).unwrap();
-        let res = proxy.marshal_to_bytes(self, this.rep(), refl.deref());
-
-        match res {
-            ProxyResult::None => wasm_ecs::WorldResourceResult::None,
-            ProxyResult::Bytes(bytes) => wasm_ecs::WorldResourceResult::Bytes(bytes),
-            ProxyResult::WasmResource(data) => {
-                let rep = self.resource_data_slab.insert(data);
-                wasm_ecs::WorldResourceResult::WasmResource(WasmResource::new_own(rep as _))
-            }
-        }
-    }
-
-    async fn drop(
         &mut self,
-        this: wasmtime::component::Resource<EcsWorld>,
+        this: wasmtime::component::Resource<wasm_ecs::EcsWorld>,
     ) -> wasmtime::Result<()> {
         let mut world_entry = self
             .world_slab
@@ -390,25 +262,11 @@ impl wasm_ecs::HostEcsDynamicView for Imports {
         world: WasmResource<wasm_ecs::EcsWorld>,
         infos: Vec<wasm_ecs::ComponentInfo>,
     ) -> wasmtime::component::Resource<wasm_ecs::EcsDynamicView> {
-        
+        // Create a dynamic view for querying for the components
-        // Create the view state
+        let mut view = DynamicViewState::new();
-        let view = {
+        for info in infos.clone() {
-            let world_entry = self
+            view.push(QueryDynamicType::from_info(info.into()));
-                .world_slab
+        }
-                .get_mut(world.rep() as _)
-                .ok_or(WasmError::InvalidResourceHandle("EcsWorld"))
-                .unwrap();
-            let lookup = world_entry.world.get_resource::<GuestTypeLookup>().unwrap();
-            
-            // Create a dynamic view for querying for the components
-            let mut view = DynamicViewState::new();
-            for info in infos.clone() {
-                let info = lookup.lookup_info(info.into());
-                view.push(QueryDynamicType::from_info(info));
-            }
-
-            view
-        };
 
         let world_rep = world.rep();
         let entry = DynamicViewEntry {
@@ -465,7 +323,7 @@ impl wasm_ecs::HostEcsDynamicView for Imports {
         }
     }
 
-    async fn drop(
+    fn drop(
         &mut self,
         this: wasmtime::component::Resource<wasm_ecs::EcsDynamicView>,
     ) -> wasmtime::Result<()> {
@@ -483,52 +341,38 @@ impl wasm_ecs::HostEcsDynamicView for Imports {
     }
 }
 
-#[derive(Default, Clone)]
+/* fn dynamic_view_next_impl() -> Option<(Entity, Vec<u8>)> {
-struct GuestTypeLookup {
+    // get the next row in the view and copy the returned components into a tightly packed
-    infos: HashMap<u128, lyra_ecs::ComponentInfo>,
+    if let Some((en, row)) = view.next(&world_entry.world) {
-    type_ids: HashMap<u128, TypeId>,
+        let row_len = row.iter().map(|d| d.info.layout().size()).sum();
-}
+        let mut row_buf = Vec::<u8>::with_capacity(row_len);
 
-impl GuestTypeLookup {
+        let mut offset = 0;
-    /// Try to find the native type's component info.
+        for comp in row {
-    /// 
+            let comp_size = comp.info.layout().size();
-    /// If the wasm type id does not correspond to a native type's info, the provided `ComponentInfo`
+            unsafe {
-    /// will be returned. If info is found, the size and alignment will be verified to match using
+                // SAFETY: the vec has the capacity to store this component because it was
-    /// asserts and the info of the native type will be returned.
+                // created with Vec::with_capacity.
-    fn lookup_info(&self, info: lyra_ecs::ComponentInfo) -> lyra_ecs::ComponentInfo {
+                let dst = row_buf.as_mut_ptr().add(offset);
-        match self.infos.get(&info.type_id().as_unknown().unwrap()) {
-            Some(native) => {
-                let native_align = native.layout().align() as usize;
-                let native_size = native.layout().size() as usize;
 
-                let layout = info.layout();
+                std::ptr::copy_nonoverlapping(
-                assert_eq!(native_align, layout.align(), "Native type alignment is different then scripting type alignment!");
+                    comp.ptr.as_ptr(),
-                assert_eq!(native_size, layout.size(), "Native type size is different then scripting type size!");
+                    dst,
+                    comp.info.layout().size(),
+                );
 
-                native.clone()
+                // make sure to tell the vec that it now has the bytes of this component
-            },
+                row_buf.set_len(row_buf.len() + comp_size);
-            None => info
+            }
+
+            offset += comp_size;
         }
-    }
 
-    fn lookup_type_id(&self, wasm_id: wasm_ecs::WasmTypeId) -> Option<TypeId> {
+        Some((en.into(), row_buf))
-        // SAFETY: a (u64, u64) is the same as a u128
+    } else {
-        let id: u128 = unsafe { std::mem::transmute(wasm_id) };
+        None
-        self.type_ids.get(&id).cloned()
     }
-}
+} */
-
-#[async_trait]
-impl wasm_ecs::HostEcsResource for Imports {
-    async fn drop(
-        &mut self,
-        this: wasmtime::component::Resource<wasm_ecs::EcsResource>,
-    ) -> wasmtime::Result<()> {
-        self.resource_data_slab.drop_ref(this.rep() as _);
-
-        Ok(())
-    }
-}
 
 #[async_trait]
 impl wasm_ecs::Host for Imports {}
@@ -544,8 +388,12 @@ async fn main() -> wasmtime::Result<()> {
     // Configure the linker
     let mut linker = wasmtime::component::Linker::new(&engine);
 
+    //wasmtime_wasi::preview0::add_to_linker_sync(&mut linker, |s| s)?;
+    //wasmtime_wasi::bindings::Imports::add_to_linker(&mut linker, |s| s)?;
     wasmtime_wasi::add_to_linker_async(&mut linker)?;
     Example::add_to_linker(&mut linker, |s| s)?;
+    //lyra::api::ecs::add_to_linker(&mut linker, |s| s)?;
+    //Api::add_to_linker(&mut linker, |s| s)?;
 
     let mut builder = WasiCtxBuilder::new();
     builder.inherit_stdio();
@@ -557,36 +405,17 @@ async fn main() -> wasmtime::Result<()> {
             // wants another world for some reason.
             world_slab: Slab::with_capacity(1),
             world_views_slab: Slab::with_capacity(10),
-            resource_data_slab: SlabRcData::with_capacity(25),
-            asset_handles_slab: SlabRcData::with_capacity(25),
             ctx: builder.build(),
             table: ResourceTable::new(),
         },
     );
 
     // Load the component from disk
-    //let bytes = std::fs::read("target/wasm32-wasip1/debug/witguest-component.wasm")?;
+    let bytes = std::fs::read("target/wasm32-wasip1/debug/witguest-component.wasm")?;
-    let bytes = std::fs::read("guests/csharp/dotnet-guest-test/bin/Debug/net9.0/wasi-wasm/native/dotnet-guest-test.wasm")?;
     let component = wasmtime::component::Component::new(&engine, bytes)?;
 
-    let (script_en, (world_res_a, _)) = {
+    let (script_en, (world_res_a, world_res_b)) = {
         let mut world = World::new();
-
-        world.add_resource(DeltaTime::from(100.00));
-        world.add_resource(lyra_engine::assets::ResourceManager::default());
-        
-        let mut lookup = GuestTypeLookup::default();
-        lookup.infos.insert(4124409524, lyra_ecs::ComponentInfo::new::<Vec3>());
-        lookup.type_ids.insert(83716348954, TypeId::of::<lyra_engine::DeltaTime>());
-        lookup.type_ids.insert(567234789345, TypeId::of::<lyra_engine::assets::ResourceManager>());
-        world.add_resource(lookup);
-
-        {
-            let mut reg = world.get_resource_or_default::<TypeRegistry>();
-            add_proxy_type_data::<DeltaTime>(&mut reg);
-            add_proxy_type_data::<lyra_engine::assets::ResourceManager>(&mut reg);
-        }
-
         let script_en = world.spawn(());
 
         let data = store.data_mut();
@@ -601,12 +430,13 @@ async fn main() -> wasmtime::Result<()> {
     };
 
     // Instantiate the component
-    println!("RUST: Creating example component");
+    println!("creating example component");
     let instance = linker.instantiate_async(&mut store, &component).await?;
 
     call_script_stage_async(&mut store, &instance, "init", world_res_a, script_en.into()).await?;
-    //call_script_stage_async(&mut store, &instance, "update", world_res_b, script_en.into()).await?;
+    call_script_stage_async(&mut store, &instance, "update", world_res_b, script_en.into()).await?;
-    println!("RUST: Guest is done");
+
+    println!("Guest is done");
 
     Ok(())
 }

src/proxy.rs

@@ -1,64 +0,0 @@
-use std::any::TypeId;
-
-use crate::Imports;
-use common_api::bytemuck;
-use lyra_engine::DeltaTime;
-use lyra_reflect::{FromType, Reflect, ReflectedResource, TypeRegistry};
-
-pub enum ProxyResult {
-    None,
-    WasmResource(lyra_ecs::ResourceData),
-    Bytes(Vec<u8>)
-}
-
-pub trait WasmProxy {
-    fn marshal_to_bytes(&self, imports: &mut Imports, world_idx: u32) -> ProxyResult;
-}
-
-#[derive(Clone)]
-pub struct WasmProxied {
-    fn_marshal: for<'a> fn (&mut Imports, world_idx: u32, &'a dyn Reflect) -> ProxyResult,
-}
-
-impl WasmProxied {
-    pub fn marshal_to_bytes(&self, imports: &mut Imports, world_idx: u32, reflected: &dyn Reflect) -> ProxyResult {
-        (self.fn_marshal)(imports, world_idx, reflected)
-    }
-}
-
-impl<T> FromType<T> for WasmProxied
-where 
-    T: WasmProxy + 'static
-{
-    fn from_type() -> Self {
-        WasmProxied {
-            fn_marshal: |imports, world_idx: u32, reflect| {
-                let this: &T = reflect.as_any().downcast_ref().unwrap();
-                this.marshal_to_bytes(imports, world_idx)
-            }
-        }
-    }
-}
-
-pub fn add_proxy_type_data<T: WasmProxy + lyra_ecs::ResourceObject + lyra_reflect::Reflect>(reg: &mut TypeRegistry) {
-    let ty = reg.get_type_or_default(TypeId::of::<T>());
-    ty.add_data(<ReflectedResource as FromType::<T>>::from_type());
-    ty.add_data(<WasmProxied as FromType::<T>>::from_type());
-}
-
-impl WasmProxy for DeltaTime {
-    fn marshal_to_bytes(&self, _: &mut Imports, _: u32) -> ProxyResult {
-        ProxyResult::Bytes(bytemuck::bytes_of(&**self).to_vec())
-    }
-}
-
-impl WasmProxy for lyra_engine::assets::ResourceManager {
-    fn marshal_to_bytes(&self, imports: &mut Imports, world_idx: u32) -> ProxyResult {
-        let world = &imports.world_slab.get(world_idx as _)
-            .unwrap().world;
-        match world.get_resource_data::<Self>() {
-            Some(data) => ProxyResult::WasmResource(data),
-            None => ProxyResult::None,
-        }
-    }
-}

witguest/src/lib.rs

@@ -1,11 +1,10 @@
-use common_api::{math::{Vec3, Vec4}, resource::DeltaTime, World};
+use common_api::{math::{Vec3, Vec4}, World};
 
 wit_bindgen::generate!({
     world: "example",
 
     with: {
         "lyra:api/ecs": common_api::bindings::lyra::api::ecs,
-        "lyra:api/asset": common_api::bindings::lyra::api::asset,
     },
 });
 
@@ -23,9 +22,6 @@ impl Guest for Component {
             .unwrap().unwrap();
         println!("Found entity at {pos3:?}");
 
-        let dt = world.get_resource::<DeltaTime>().unwrap();
-        println!("dt is {}", *dt);
-
         Ok(())
     }
 

witguest/wit/deps/lyraapi/asset.wit

@@ -0,0 +1,18 @@
+interface asset {
+    resource handle {
+        set-watched: func(watched: bool);
+        version: func() -> u64;
+        uuid: func() -> string;
+        path: func() -> string;
+        is-watched: func() -> bool;
+        is-loaded: func() -> bool;
+        wait-for-load: func();
+        wait-recurse-dependencies-load: func();
+    }
+
+    resource asset-manager {
+        constructor();
+
+        request: func(path: string) -> handle;
+    }
+}

witguest/wit/deps/lyraapi/ecs.wit

@@ -37,19 +37,6 @@ interface ecs {
         next: func() -> option<tuple<entity, list<u8>>>;
     }
 
-    /// An resource that can be "downcasted" to a specific type.
-    /// 
-    /// You can use `T.from-ecs-resource` to "downcast" the type
-    resource ecs-resource {
-
-    }
-
-    variant world-resource-result {
-        none,
-        wasm-resource(ecs-resource),
-        bytes(list<u8>),
-    }
-
     resource ecs-world {
         constructor();
 
@@ -89,8 +76,6 @@ interface ecs {
         /// Returns: A row of components serialized as bytes. The buffer is tighly packed.
         view-one: func(en: entity, component-infos: list<component-info>) -> option<list<u8>>;
 
-        get-resource: func(type-id: wasm-type-id) -> world-resource-result;
-
         //with_system: func(stage: string, component-infos: list<component-info>, system: func(components: list<u8>));
     }
 }

witguest/wit/deps/lyraapi/world.wit

@@ -2,5 +2,4 @@ package lyra:api;
 
 world imports {
     import ecs;
-    import asset;
 }

witguest/wit/world.wit

@@ -11,7 +11,6 @@ interface math {
 /// An example world for the component to target.
 world example {
     import math;
-    import lyra:api/asset;
     use lyra:api/ecs.{ecs-world, entity};
 
     import host-print: func(msg: string);