Update icon assets

Ghost.Engine/Components/SceneID.cs

@@ -1,8 +1,9 @@
+using Ghost.Engine.Core;
 using Ghost.Entities;
 
 namespace Ghost.Engine.Components;
 
 public struct SceneID : IComponent // TODO: ISharedComponent
 {
-    public short id;
+    public Scene scene;
 }

Ghost.Engine/Core/Scene.cs

@@ -1,4 +1,3 @@
-using Ghost.Core;
 using Ghost.Entities;
 using Misaki.HighPerformance.LowLevel.Buffer;
 using Misaki.HighPerformance.LowLevel.Collections;
@@ -73,6 +72,7 @@ public readonly struct Scene : IEquatable<Scene>
 public static class SceneManager
 {
     private static short s_nextSceneID;
+    private static readonly Queue<short> s_recycledSceneIDs = new();
 
     /// <summary>
     /// Creates a new scene in the world.
@@ -80,8 +80,12 @@ public static class SceneManager
     /// <returns>The created scene.</returns>
     public static Scene CreateScene()
     {
-        var scene = new Scene(s_nextSceneID++);
-        return scene;
+        if (!s_recycledSceneIDs.TryDequeue(out var id))
+        {
+            id = s_nextSceneID++;
+        }
+
+        return new Scene(id);
     }
 
     /// <summary>
@@ -105,7 +109,7 @@ public static class SceneManager
 
             for (var i = 0; i < chunk.Count; i++)
             {
-                if (sceneIDs[i].id == scene.ID)
+                if (sceneIDs[i].scene.ID == scene.ID)
                 {
                     entitiesToDestroy.Add(entities[i]);
                 }
@@ -113,6 +117,7 @@ public static class SceneManager
         }
 
         world.EntityManager.DestroyEntities(entitiesToDestroy.AsSpan());
+        s_recycledSceneIDs.Enqueue(scene.ID);
     }
 
     /// <summary>
@@ -122,12 +127,12 @@ public static class SceneManager
     /// <param name="world">The world containing the entities.</param>
     /// <param name="entities">Span to store the entities.</param>
     /// <returns>The number of entities written to the span.</returns>
-    public static int GetSceneEntities(Scene scene, World world, Span<Entity> entities)
+    public static UnsafeList<Entity> GetSceneEntities(Scene scene, World world, AllocationHandle handle)
     {
         var queryID = new QueryBuilder().WithAll<Components.SceneID>().Build(world);
         ref var query = ref world.ComponentManager.GetEntityQueryReference(queryID);
 
-        var index = 0;
+        var entities = new UnsafeList<Entity>(128, handle);
 
         // Iterate through all matching entities
         foreach (var chunk in query.GetChunkIterator())
@@ -135,15 +140,15 @@ public static class SceneManager
             var chunkEntities = chunk.GetEntities();
             var sceneIDs = chunk.GetComponentData<Components.SceneID>();
 
-            for (var i = 0; i < chunk.Count && index < entities.Length; i++)
+            for (var i = 0; i < chunk.Count; i++)
             {
-                if (sceneIDs[i].id == scene.ID)
+                if (sceneIDs[i].scene.ID == scene.ID)
                 {
-                    entities[index++] = chunkEntities[i];
+                    entities.Add(chunkEntities[i]);
                 }
             }
         }
 
-        return index;
+        return entities;
     }
 }

Ghost.Engine/EngineCore.cs

@@ -3,30 +3,35 @@ using Misaki.HighPerformance.Jobs;
 
 namespace Ghost.Engine;
 
+public interface IEngineContext
+{
+    JobScheduler JobScheduler { get; }
+}
+
 [AttributeUsage(AttributeTargets.Class, AllowMultiple = false, Inherited = false)]
 internal class EngineEntryAttribute : Attribute
 {
 }
 
 [EngineEntry]
-public partial class EngineCore
+internal sealed partial class EngineCore : IEngineContext
 {
     private readonly JobScheduler _jobScheduler;
 
     public JobScheduler JobScheduler => _jobScheduler;
 
-    internal EngineCore()
+    public EngineCore()
     {
         _jobScheduler = new JobScheduler(Environment.ProcessorCount - 2); // We -2 here, one for main thread, one for render thread
 
         ComponentRegistry.GetOrRegisterComponentID<ManagedEntityRef>();
     }
 
-    internal void Init()
+    public void Init()
     {
     }
 
-    internal void Dispose()
+    public void Dispose()
     {
         _jobScheduler.Dispose();
     }

Ghost.Engine/Models/LogMessage.cs

@@ -1,54 +0,0 @@
-namespace Ghost.Engine.Models;
-
-public enum LogLevel
-{
-    Info,
-    Warning,
-    Error
-}
-
-internal class LogMessage
-{
-    public LogLevel Level
-    {
-        get; set;
-    }
-
-    public string? Message
-    {
-        get; set;
-    }
-
-    public string? StackTrace
-    {
-        get; set;
-    }
-
-    public DateTime Timestamp
-    {
-        get; set;
-    }
-
-    public LogMessage(LogLevel level, string? message, string? stackTrace = null)
-    {
-        Level = level;
-        Message = message;
-        StackTrace = stackTrace;
-        Timestamp = DateTime.Now;
-    }
-
-    public override string ToString()
-    {
-        return $"{Timestamp:HH:mm:ss} [{Level}] {Message}";
-    }
-
-    public string ToStringWithStackTrace()
-    {
-        if (StackTrace == null)
-        {
-            return ToString();
-        }
-
-        return $"{ToString()}\n{StackTrace}";
-    }
-}