unmanaged structs

encompass-cs/Attributes/QueryWith.cs

@@ -14,13 +14,6 @@ namespace Encompass
         {
             foreach (var queryWithType in queryWithTypes)
             {
-                var isComponent = queryWithType.GetInterfaces().Contains(typeof(IComponent));
-
-                if (!isComponent)
-                {
-                    throw new IllegalReadTypeException("{0} must be a Component", queryWithType.Name);
-                }
-
                 QueryWithTypes.Add(queryWithType);
             }
         }

encompass-cs/Attributes/QueryWithout.cs

@@ -14,14 +14,7 @@ namespace Encompass
         {
             foreach (var type in queryWithoutTypes)
             {
-                var isComponent = type.GetInterfaces().Contains(typeof(IComponent));
+                QueryWithoutTypes.Add(type);
-
-                if (!isComponent)
-                {
-                    throw new IllegalReadTypeException("{0} must be a Component", type.Name);
-                }
-
-                this.QueryWithoutTypes.Add(type);
             }
         }
     }

encompass-cs/Attributes/Reads.cs

@@ -14,14 +14,7 @@ namespace Encompass
         {
             foreach (var readType in readTypes)
             {
-                var isComponent = readType.GetInterfaces().Contains(typeof(IComponent));
+                ReadTypes.Add(readType);
-
-                if (!isComponent)
-                {
-                    throw new IllegalReadTypeException("{0} must be a Component", readType.Name);
-                }
-
-                this.ReadTypes.Add(readType);
             }
         }
     }

encompass-cs/Attributes/ReadsImmediate.cs

@@ -1,7 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
-using Encompass.Exceptions;
 
 namespace Encompass
 {
@@ -14,14 +12,7 @@ namespace Encompass
         {
             foreach (var readImmediateType in readImmediateTypes)
             {
-                var isComponent = readImmediateType.GetInterfaces().Contains(typeof(IComponent));
+                ReadImmediateTypes.Add(readImmediateType);
-
-                if (!isComponent)
-                {
-                    throw new IllegalReadTypeException("{0} must be a Component", readImmediateType.Name);
-                }
-
-                this.ReadImmediateTypes.Add(readImmediateType);
             }
         }
     }

encompass-cs/Attributes/Writes.cs

@@ -15,24 +15,12 @@ namespace Encompass
         {
             foreach (var writeType in writeTypes)
             {
-                var isComponent = writeType.GetInterfaces().Contains(typeof(IComponent));
+                WriteTypes.Add(writeType);
-                if (!isComponent)
-                {
-                    throw new IllegalWriteTypeException("{0} must be a Component", writeType.Name);
-                }
-
-                this.WriteTypes.Add(writeType);
             }
         }
 
         public Writes(Type writeType, int priority)
         {
-            var isComponent = writeType.GetInterfaces().Contains(typeof(IComponent));
-            if (!isComponent)
-            {
-                throw new IllegalWriteTypeException("{0} must be a Component", writeType.Name);
-            }
-
             WriteTypes.Add(writeType);
             Priorities.Add(writeType, priority);
         }

encompass-cs/Attributes/WritesImmediate.cs

@@ -1,7 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
-using Encompass.Exceptions;
 
 namespace Encompass
 {
@@ -14,13 +12,7 @@ namespace Encompass
         {
             foreach (var writeImmediateType in writeImmediateTypes)
             {
-                var isComponent = writeImmediateType.GetInterfaces().Contains(typeof(IComponent));
+                WriteImmediateTypes.Add(writeImmediateType);
-                if (!isComponent)
-                {
-                    throw new IllegalWriteImmediateTypeException("{0} must be a Component", writeImmediateType.Name);
-                }
-
-                this.WriteImmediateTypes.Add(writeImmediateType);
             }
         }
     }

encompass-cs/Collections/ComponentBitSet.cs

@@ -24,13 +24,13 @@ namespace Encompass
             _entities.Add(entityID, BitSet512.Zero);
         }
 
-        public void Set<TComponent>(int entityID) where TComponent : struct, IComponent
+        public void Set<TComponent>(int entityID) where TComponent : struct
         {
             if (!_entities.ContainsKey(entityID)) { AddEntity(entityID); }
             _entities[entityID] = _entities[entityID].Set(_typeToIndex[typeof(TComponent)]);
         }
 
-        public void RemoveComponent<TComponent>(int entityID) where TComponent : struct, IComponent
+        public void RemoveComponent<TComponent>(int entityID) where TComponent : struct
         {
             if (_entities.ContainsKey(entityID))
             {

encompass-cs/Collections/ComponentStore.cs

@@ -8,27 +8,32 @@ namespace Encompass
     {
         private Dictionary<Type, TypedComponentStore> _stores = new Dictionary<Type, TypedComponentStore>(512);
         public ComponentBitSet ComponentBitSet { get; private set; }
+        private Dictionary<Type, int> _typeToIndex;
 
         public ComponentStore(Dictionary<Type, int> typeToIndex)
         {
+            _typeToIndex = typeToIndex;
             ComponentBitSet = new ComponentBitSet(typeToIndex);
         }
 
-        public virtual void RegisterComponentType<TComponent>() where TComponent : struct, IComponent
+        public virtual void RegisterComponentType<TComponent>() where TComponent : unmanaged
         {
             if (!_stores.ContainsKey(typeof(TComponent)))
             {
                 var store = new TypedComponentStore<TComponent>();
                 _stores.Add(typeof(TComponent), store);
             }
+
+            if (!_typeToIndex.ContainsKey(typeof(TComponent))) { _typeToIndex.Add(typeof(TComponent), _typeToIndex.Count); }
         }
 
-        private TypedComponentStore<TComponent> Lookup<TComponent>() where TComponent : struct, IComponent
+        private TypedComponentStore<TComponent> Lookup<TComponent>() where TComponent : unmanaged
         {
+            RegisterComponentType<TComponent>();
             return _stores[typeof(TComponent)] as TypedComponentStore<TComponent>;
         }
 
-        public bool Has<TComponent>(int entityID) where TComponent : struct, IComponent
+        public bool Has<TComponent>(int entityID) where TComponent : unmanaged
         {
             return Lookup<TComponent>().Has(entityID);
         }
@@ -43,18 +48,18 @@ namespace Encompass
             return ComponentBitSet.EntityBitArray(entityID);
         }
 
-        public ref readonly TComponent Get<TComponent>(int entityID) where TComponent : struct, IComponent
+        public ref readonly TComponent Get<TComponent>(int entityID) where TComponent : unmanaged
         {
             return ref Lookup<TComponent>().Get(entityID);
         }
 
-        public virtual void Set<TComponent>(int entityID, TComponent component) where TComponent : struct, IComponent
+        public virtual void Set<TComponent>(int entityID, TComponent component) where TComponent : unmanaged
         {
             Lookup<TComponent>().Set(entityID, component);
             ComponentBitSet.Set<TComponent>(entityID);
         }
 
-        public virtual bool Set<TComponent>(int entityID, TComponent component, int priority) where TComponent : struct, IComponent
+        public virtual bool Set<TComponent>(int entityID, TComponent component, int priority) where TComponent : unmanaged
         {
             if (Lookup<TComponent>().Set(entityID, component, priority))
             {
@@ -64,7 +69,7 @@ namespace Encompass
             return false;
         }
 
-        public virtual bool Remove<TComponent>(int entityID, int priority) where TComponent : struct, IComponent
+        public virtual bool Remove<TComponent>(int entityID, int priority) where TComponent : unmanaged
         {
             if (Lookup<TComponent>().Remove(entityID, priority))
             {
@@ -74,7 +79,7 @@ namespace Encompass
             return false;
         }
 
-        public void ForceRemove<TComponent>(int entityID) where TComponent : struct, IComponent
+        public void ForceRemove<TComponent>(int entityID) where TComponent : unmanaged
         {
             Lookup<TComponent>().ForceRemove(entityID);
             ComponentBitSet.RemoveComponent<TComponent>(entityID);
@@ -89,17 +94,17 @@ namespace Encompass
             ComponentBitSet.RemoveEntity(entityID);
         }
 
-        public bool Any<TComponent>() where TComponent : struct, IComponent
+        public bool Any<TComponent>() where TComponent : unmanaged
         {
             return Lookup<TComponent>().Count > 0;
         }
 
-        public IEnumerable<(TComponent, int)> All<TComponent>() where TComponent : struct, IComponent
+        public IEnumerable<(TComponent, int)> All<TComponent>() where TComponent : unmanaged
         {
             return Lookup<TComponent>().All();
         }
 
-        public void Clear<TComponent>() where TComponent : struct, IComponent
+        public void Clear<TComponent>() where TComponent : unmanaged
         {
             Lookup<TComponent>().Clear();
         }

encompass-cs/Collections/Replayer.cs

@@ -10,7 +10,7 @@ namespace Encompass
         public abstract void Clear();
     }
 
-    internal class Replayer<TComponent> : Replayer where TComponent : struct, IComponent
+    internal class Replayer<TComponent> : Replayer where TComponent : unmanaged
     {
         private readonly ComponentDeltaStore _deltaStore;
         private readonly HashSet<int> _removals = new HashSet<int>();

encompass-cs/Collections/TypedComponentStore.cs

@@ -14,7 +14,7 @@ namespace Encompass
         public abstract void ClearPriorities();
     }
 
-    internal class TypedComponentStore<TComponent> : TypedComponentStore where TComponent : struct, IComponent
+    internal class TypedComponentStore<TComponent> : TypedComponentStore where TComponent : unmanaged
     {
         private readonly Dictionary<int, int> _indices = new Dictionary<int, int>(512);
         private readonly Dictionary<int, int> _priorities = new Dictionary<int, int>(512);

encompass-cs/ComponentManager.cs

@@ -29,7 +29,7 @@ namespace Encompass
             TypeToIndex = typeToIndex;
         }
 
-        public void RegisterComponentType<TComponent>() where TComponent : struct, IComponent
+        public void RegisterComponentType<TComponent>() where TComponent : unmanaged
         {
             _existingComponentStore.RegisterComponentType<TComponent>();
             _immediateComponentStore.RegisterComponentType<TComponent>();
@@ -47,7 +47,7 @@ namespace Encompass
             _upToDateComponentStore.SwapWith(componentStore);
         }
 
-        internal void RegisterDrawableComponent<TComponent>(int entityID, int layer) where TComponent : struct, IComponent
+        internal void RegisterDrawableComponent<TComponent>(int entityID, int layer) where TComponent : unmanaged
         {
             _drawLayerManager.RegisterComponentWithLayer<TComponent>(entityID, layer);
         }
@@ -61,7 +61,7 @@ namespace Encompass
             _replayStore.ClearAll();
         }
 
-        internal bool AddImmediateComponent<TComponent>(int entityID, TComponent component, int priority) where TComponent : struct, IComponent
+        internal bool AddImmediateComponent<TComponent>(int entityID, TComponent component, int priority) where TComponent : unmanaged
         {
             if (_immediateComponentStore.Set(entityID, component, priority))
             {
@@ -73,14 +73,14 @@ namespace Encompass
             return false;
         }
 
-        internal void AddImmediateComponent<TComponent>(int entityID, TComponent component) where TComponent : struct, IComponent
+        internal void AddImmediateComponent<TComponent>(int entityID, TComponent component) where TComponent : unmanaged
         {
             _immediateComponentStore.Set(entityID, component);
             _replayStore.Set(entityID, component);
             _upToDateComponentStore.Set(entityID, component);
         }
 
-        internal bool UpdateComponent<TComponent>(int entityID, TComponent component, int priority) where TComponent : struct, IComponent
+        internal bool UpdateComponent<TComponent>(int entityID, TComponent component, int priority) where TComponent : unmanaged
         {
             var result = _upToDateComponentStore.Set(entityID, component, priority);
             if (result)
@@ -90,7 +90,7 @@ namespace Encompass
             return result;
         }
 
-        internal void AddComponent<TComponent>(int entityID, TComponent component) where TComponent : struct, IComponent
+        internal void AddComponent<TComponent>(int entityID, TComponent component) where TComponent : unmanaged
         {
             _upToDateComponentStore.Set(entityID, component);
             _replayStore.Set(entityID, component);
@@ -98,12 +98,12 @@ namespace Encompass
 
         // existing or immediate reads
 
-        internal IEnumerable<(TComponent, int)> ReadExistingAndImmediateComponentsByType<TComponent>() where TComponent : struct, IComponent
+        internal IEnumerable<(TComponent, int)> ReadExistingAndImmediateComponentsByType<TComponent>() where TComponent : unmanaged
         {
             return _upToDateComponentStore.All<TComponent>();
         }
 
-        internal (TComponent, int) ReadFirstExistingOrImmediateComponentByType<TComponent>() where TComponent : struct, IComponent
+        internal (TComponent, int) ReadFirstExistingOrImmediateComponentByType<TComponent>() where TComponent : unmanaged
         {
             if (!SomeExistingOrImmediateComponent<TComponent>()) { throw new Exceptions.NoComponentOfTypeException($"No Component with type {typeof(TComponent)} exists"); }
             var enumerator = ReadExistingAndImmediateComponentsByType<TComponent>().GetEnumerator();
@@ -111,14 +111,14 @@ namespace Encompass
             return enumerator.Current;
         }
 
-        internal bool SomeExistingOrImmediateComponent<TComponent>() where TComponent : struct, IComponent
+        internal bool SomeExistingOrImmediateComponent<TComponent>() where TComponent : unmanaged
         {
             return _upToDateComponentStore.Any<TComponent>();
         }
 
         // existing reads
 
-        internal (TComponent, int) ReadFirstExistingComponentByType<TComponent>() where TComponent : struct, IComponent
+        internal (TComponent, int) ReadFirstExistingComponentByType<TComponent>() where TComponent : unmanaged
         {
             if (!SomeExistingComponent<TComponent>()) { throw new Exceptions.NoComponentOfTypeException($"No Component with type {typeof(TComponent)} exists"); }
             var enumerator = GetComponentsIncludingEntity<TComponent>().GetEnumerator();
@@ -126,19 +126,19 @@ namespace Encompass
             return enumerator.Current;
         }
 
-        internal bool SomeExistingComponent<TComponent>() where TComponent : struct, IComponent
+        internal bool SomeExistingComponent<TComponent>() where TComponent : unmanaged
         {
             return _existingComponentStore.Any<TComponent>();
         }
 
         // immediate reads
 
-        internal IEnumerable<(TComponent, int)> ReadImmediateComponentsByType<TComponent>() where TComponent : struct, IComponent
+        internal IEnumerable<(TComponent, int)> ReadImmediateComponentsByType<TComponent>() where TComponent : unmanaged
         {
             return _immediateComponentStore.All<TComponent>();
         }
 
-        internal (TComponent, int) ReadFirstImmediateComponentByType<TComponent>() where TComponent : struct, IComponent
+        internal (TComponent, int) ReadFirstImmediateComponentByType<TComponent>() where TComponent : unmanaged
         {
             if (!SomeImmediateComponent<TComponent>()) { throw new Exceptions.NoComponentOfTypeException($"No Component with type {typeof(TComponent)} exists"); }
             var enumerator = ReadImmediateComponentsByType<TComponent>().GetEnumerator();
@@ -146,31 +146,31 @@ namespace Encompass
             return enumerator.Current;
         }
 
-        internal bool SomeImmediateComponent<TComponent>() where TComponent : struct, IComponent
+        internal bool SomeImmediateComponent<TComponent>() where TComponent : unmanaged
         {
             return _immediateComponentStore.Any<TComponent>();
         }
 
         // component getters
 
-        internal ref readonly TComponent ReadImmediateOrExistingComponentByEntityAndType<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal ref readonly TComponent ReadImmediateOrExistingComponentByEntityAndType<TComponent>(int entityID) where TComponent : unmanaged
         {
             return ref _upToDateComponentStore.Get<TComponent>(entityID);
         }
 
-        internal ref readonly TComponent ReadExistingComponentByEntityAndType<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal ref readonly TComponent ReadExistingComponentByEntityAndType<TComponent>(int entityID) where TComponent : unmanaged
         {
             return ref _existingComponentStore.Get<TComponent>(entityID);
         }
 
-        internal ref readonly TComponent ReadImmediateComponentByEntityAndType<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal ref readonly TComponent ReadImmediateComponentByEntityAndType<TComponent>(int entityID) where TComponent : unmanaged
         {
             return ref _immediateComponentStore.Get<TComponent>(entityID);
         }
 
         // has checkers
 
-        internal bool HasExistingOrImmediateComponent<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal bool HasExistingOrImmediateComponent<TComponent>(int entityID) where TComponent : unmanaged
         {
             return _upToDateComponentStore.Has<TComponent>(entityID);
         }
@@ -180,7 +180,7 @@ namespace Encompass
             return _upToDateComponentStore.Has(type, entityID);
         }
 
-        internal bool HasExistingComponent<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal bool HasExistingComponent<TComponent>(int entityID) where TComponent : unmanaged
         {
             return _existingComponentStore.Has<TComponent>(entityID);
         }
@@ -190,7 +190,7 @@ namespace Encompass
             return _existingComponentStore.Has(type, entityID);
         }
 
-        internal bool HasImmediateComponent<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal bool HasImmediateComponent<TComponent>(int entityID) where TComponent : unmanaged
         {
             return _immediateComponentStore.Has<TComponent>(entityID);
         }
@@ -200,12 +200,12 @@ namespace Encompass
             return _immediateComponentStore.Has(type, entityID);
         }
 
-        internal IEnumerable<(TComponent, int)> GetComponentsIncludingEntity<TComponent>() where TComponent : struct, IComponent
+        internal IEnumerable<(TComponent, int)> GetComponentsIncludingEntity<TComponent>() where TComponent : unmanaged
         {
             return _existingComponentStore.All<TComponent>();
         }
 
-        internal IEnumerable<TComponent> GetComponentsByType<TComponent>() where TComponent : struct, IComponent
+        internal IEnumerable<TComponent> GetComponentsByType<TComponent>() where TComponent : unmanaged
         {
             foreach (var pair in _existingComponentStore.All<TComponent>())
             {
@@ -213,12 +213,12 @@ namespace Encompass
             }
         }
 
-        internal ref readonly TComponent GetComponentByEntityAndType<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal ref readonly TComponent GetComponentByEntityAndType<TComponent>(int entityID) where TComponent : unmanaged
         {
             return ref _existingComponentStore.Get<TComponent>(entityID);
         }
 
-        internal bool EntityHasComponentOfType<TComponent>(int entityID) where TComponent : struct, IComponent
+        internal bool EntityHasComponentOfType<TComponent>(int entityID) where TComponent : unmanaged
         {
             return _existingComponentStore.Has<TComponent>(entityID);
         }
@@ -242,7 +242,7 @@ namespace Encompass
             _entitiesMarkedForRemoval.Clear();
         }
 
-        public bool RemoveImmediate<TComponent>(int entityID, int priority) where TComponent : struct, IComponent
+        public bool RemoveImmediate<TComponent>(int entityID, int priority) where TComponent : unmanaged
         {
             if (_immediateComponentStore.Remove<TComponent>(entityID, priority))
             {
@@ -254,7 +254,7 @@ namespace Encompass
             return false;
         }
 
-        public void Remove<TComponent>(int entityID, int priority) where TComponent : struct, IComponent
+        public void Remove<TComponent>(int entityID, int priority) where TComponent : unmanaged
         {
             if (_upToDateComponentStore.Remove<TComponent>(entityID, priority))
             {

encompass-cs/DrawLayerManager.cs

@@ -30,7 +30,7 @@ namespace Encompass
             }
         }
 
-        public void RegisterOrderedDrawable<TComponent>() where TComponent : struct, IComponent
+        public void RegisterOrderedDrawable<TComponent>() where TComponent : struct
         {
             if (!_typeToEntityToLayer.ContainsKey(typeof(TComponent)))
             {
@@ -53,7 +53,7 @@ namespace Encompass
             set.Add(renderer);
         }
 
-        public void RegisterComponentWithLayer<TComponent>(int entityID, int layer) where TComponent : struct, IComponent
+        public void RegisterComponentWithLayer<TComponent>(int entityID, int layer) where TComponent : struct
         {
             if (!_layerIndexToTypeToID.ContainsKey(layer))
             {
@@ -68,7 +68,7 @@ namespace Encompass
             _typeToEntityToLayer[typeof(TComponent)].Add(entityID, layer);
         }
 
-        public void UnRegisterComponentWithLayer<TComponent>(int entityID) where TComponent : struct, IComponent
+        public void UnRegisterComponentWithLayer<TComponent>(int entityID) where TComponent : struct
         {
             if (!_typeToEntityToLayer.ContainsKey(typeof(TComponent))) { return; }
 

encompass-cs/Engine.cs

@@ -213,7 +213,7 @@ namespace Encompass
         /// <summary>
         /// Returns an Entity containing the specified Component type.
         /// </summary>
-        protected Entity ReadEntity<TComponent>() where TComponent : struct, IComponent
+        protected Entity ReadEntity<TComponent>() where TComponent : unmanaged
         {
             return _entityManager.GetEntity(ReadComponentHelper<TComponent>().Item2);
         }
@@ -221,7 +221,7 @@ namespace Encompass
         /// <summary>
         /// Returns all Entities containing the specified Component type.
         /// </summary>
-        protected IEnumerable<Entity> ReadEntities<TComponent>() where TComponent : struct, IComponent
+        protected IEnumerable<Entity> ReadEntities<TComponent>() where TComponent : unmanaged
         {
             foreach (var pair in ReadComponentsHelper<TComponent>())
             {
@@ -231,12 +231,12 @@ namespace Encompass
 
         // these next two are for the ComponentMessageEmitter only
 
-        internal IEnumerable<TComponent> ReadComponentsFromWorld<TComponent>() where TComponent : struct, IComponent
+        internal IEnumerable<TComponent> ReadComponentsFromWorld<TComponent>() where TComponent : unmanaged
         {
             return _componentManager.GetComponentsByType<TComponent>();
         }
 
-        private IEnumerable<(TComponent, int)> ReadComponentsHelper<TComponent>() where TComponent : struct, IComponent
+        private IEnumerable<(TComponent, int)> ReadComponentsHelper<TComponent>() where TComponent : unmanaged
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -261,7 +261,7 @@ namespace Encompass
         /// <summary>
         /// Returns all of the Components with the specified Component Type.
         /// </summary>
-        protected IEnumerable<TComponent> ReadComponents<TComponent>() where TComponent : struct, IComponent
+        protected IEnumerable<TComponent> ReadComponents<TComponent>() where TComponent : unmanaged
         {
             foreach (var pair in ReadComponentsHelper<TComponent>())
             {
@@ -272,7 +272,7 @@ namespace Encompass
         /// <summary>
         /// Returns all of the components of the specified type including an Entity reference for each Component.
         /// </summary>
-        protected IEnumerable<(TComponent, Entity)> ReadComponentsIncludingEntity<TComponent>() where TComponent : struct, IComponent
+        protected IEnumerable<(TComponent, Entity)> ReadComponentsIncludingEntity<TComponent>() where TComponent : unmanaged
         {
             foreach (var (component, id) in ReadComponentsHelper<TComponent>())
             {
@@ -280,7 +280,7 @@ namespace Encompass
             }
         }
 
-        private (TComponent, int) ReadComponentHelper<TComponent>() where TComponent : struct, IComponent
+        private (TComponent, int) ReadComponentHelper<TComponent>() where TComponent : unmanaged
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -305,7 +305,7 @@ namespace Encompass
         /// <summary>
         /// Returns a Component with the specified Component Type. If multiples exist, an arbitrary Component is returned.
         /// </summary>
-        protected TComponent ReadComponent<TComponent>() where TComponent : struct, IComponent
+        protected TComponent ReadComponent<TComponent>() where TComponent : unmanaged
         {
             return ReadComponentHelper<TComponent>().Item1;
         }
@@ -313,7 +313,7 @@ namespace Encompass
         /// <summary>
         /// Returns a component of the specified type including its Entity reference. If multiples exist, an arbitrary Component is returned.
         /// </summary>
-        protected (TComponent, Entity) ReadComponentIncludingEntity<TComponent>() where TComponent : struct, IComponent
+        protected (TComponent, Entity) ReadComponentIncludingEntity<TComponent>() where TComponent : unmanaged
         {
             var (component, id) = ReadComponentHelper<TComponent>();
             return (component, _entityManager.GetEntity(id));
@@ -322,7 +322,7 @@ namespace Encompass
         /// <summary>
         /// Returns true if any Component with the specified Component Type exists.
         /// </summary>
-        protected bool SomeComponent<TComponent>() where TComponent : struct, IComponent
+        protected bool SomeComponent<TComponent>() where TComponent : unmanaged
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -344,7 +344,7 @@ namespace Encompass
             }
         }
 
-        private ref readonly TComponent GetComponentHelper<TComponent>(int entityID) where TComponent : struct, IComponent
+        private ref readonly TComponent GetComponentHelper<TComponent>(int entityID) where TComponent : unmanaged
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -375,7 +375,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalReadException">
         /// Thrown when the Engine does not declare that it reads the given Component Type.
         /// </exception>
-        protected ref readonly TComponent GetComponent<TComponent>(Entity entity) where TComponent : struct, IComponent
+        protected ref readonly TComponent GetComponent<TComponent>(Entity entity) where TComponent : unmanaged
         {
             return ref GetComponentHelper<TComponent>(entity.ID);
         }
@@ -386,7 +386,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalReadException">
         /// Thrown when the Engine does not declare that is Reads the given Component Type.
         /// </exception>
-        protected bool HasComponent<TComponent>(Entity entity) where TComponent : struct, IComponent
+        protected bool HasComponent<TComponent>(Entity entity) where TComponent : unmanaged
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -444,7 +444,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalWriteException">
         /// Thrown when the Engine does not declare that it Writes the given Component Type.
         /// </exception>
-        protected void SetComponent<TComponent>(Entity entity, TComponent component) where TComponent : struct, IComponent
+        protected void SetComponent<TComponent>(Entity entity, TComponent component) where TComponent : unmanaged
         {
             var priority = WritePriorities.ContainsKey(typeof(TComponent)) ? WritePriorities[typeof(TComponent)] : DefaultWritePriority;
 
@@ -484,7 +484,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalWriteException">
         /// Thrown when the Engine does not declare that it Writes the given Component Type.
         /// </exception>
-        protected void AddComponent<TComponent>(Entity entity, TComponent component) where TComponent : struct, IComponent
+        protected void AddComponent<TComponent>(Entity entity, TComponent component) where TComponent : unmanaged
         {
             if (!EntityCreatedThisFrame(entity.ID))
             {
@@ -592,7 +592,7 @@ namespace Encompass
         /// Destroys an arbitrary Entity containing a Component of the specified Type.
         /// Entity destruction takes place after all the Engines have been processed by World Update.
         /// </summary>
-        protected void DestroyWith<TComponent>() where TComponent : struct, IComponent
+        protected void DestroyWith<TComponent>() where TComponent : unmanaged
         {
             Destroy(ReadEntity<TComponent>());
         }
@@ -601,7 +601,7 @@ namespace Encompass
         /// Destroys all Entities containing a Component of the specified Type.
         /// Entity destruction takes place after all the Engines have been processed by World Update.
         /// </summary>
-        protected void DestroyAllWith<TComponent>() where TComponent : struct, IComponent
+        protected void DestroyAllWith<TComponent>() where TComponent : unmanaged
         {
             foreach (var entity in ReadEntities<TComponent>())
             {
@@ -614,7 +614,7 @@ namespace Encompass
         /// Note that the Engine must Read the Component type that is being removed.
         /// If a Component with the specified type does not exist on the Entity, returns false and does not mutate the Entity.
         /// </summary>
-        protected void RemoveComponent<TComponent>(Entity entity) where TComponent : struct, IComponent
+        protected void RemoveComponent<TComponent>(Entity entity) where TComponent : unmanaged
         {
             var priority = WritePriorities.ContainsKey(typeof(TComponent)) ? WritePriorities[typeof(TComponent)] : DefaultWritePriority;
 
@@ -764,24 +764,28 @@ namespace Encompass
             var withMask = BitSet512.Zero;
             foreach (var type in QueryWithTypes)
             {
+                if (!_componentManager.TypeToIndex.ContainsKey(type)) { _componentManager.TypeToIndex.Add(type, _componentManager.TypeToIndex.Count); }
                 withMask = withMask.Set(_componentManager.TypeToIndex[type]);
             }
 
             var withoutMask = BitSet512.Zero;
             foreach (var type in QueryWithoutTypes)
             {
+                if (!_componentManager.TypeToIndex.ContainsKey(type)) { _componentManager.TypeToIndex.Add(type, _componentManager.TypeToIndex.Count); }
                 withoutMask = withoutMask.Set(_componentManager.TypeToIndex[type]);
             }
 
             var immediateMask = BitSet512.Zero;
             foreach (var type in ReadImmediateTypes)
             {
+                if (!_componentManager.TypeToIndex.ContainsKey(type)) { _componentManager.TypeToIndex.Add(type, _componentManager.TypeToIndex.Count); }
                 immediateMask = immediateMask.Set(_componentManager.TypeToIndex[type]);
             }
 
             var existingMask = BitSet512.Zero;
             foreach (var type in ReadTypes)
             {
+                if (!_componentManager.TypeToIndex.ContainsKey(type)) { _componentManager.TypeToIndex.Add(type, _componentManager.TypeToIndex.Count); }
                 existingMask = existingMask.Set(_componentManager.TypeToIndex[type]);
             }
 

encompass-cs/Exceptions/IllegalReadTypeException.cs

@@ -1,12 +0,0 @@
-using System;
-
-namespace Encompass.Exceptions
-{
-    public class IllegalReadTypeException : Exception
-    {
-        public IllegalReadTypeException(
-            string format,
-            params object[] args
-        ) : base(string.Format(format, args)) { }
-    }
-}

encompass-cs/IComponent.cs

@@ -1,7 +0,0 @@
-namespace Encompass
-{
-    /// <summary>
-    /// Structs that implement IComponent are considered to be Components.
-    /// </summary>
-    public interface IComponent { }
-}

encompass-cs/RenderManager.cs

@@ -16,7 +16,7 @@ namespace Encompass
             _drawLayerManager = drawLayerManager;
         }
 
-        public void RegisterOrderedRenderer<TComponent>(Action<Entity> renderAction) where TComponent : struct, IComponent
+        public void RegisterOrderedRenderer<TComponent>(Action<Entity> renderAction) where TComponent : unmanaged
         {
             _drawComponentTypeToOrderedRenderer.Add(typeof(TComponent), renderAction);
             _drawLayerManager.RegisterOrderedDrawable<TComponent>();

encompass-cs/Renderer.cs

@@ -17,7 +17,7 @@ namespace Encompass
             _componentManager = componentManager;
         }
 
-        protected IEnumerable<Entity> ReadEntities<TComponent>() where TComponent : struct, IComponent
+        protected IEnumerable<Entity> ReadEntities<TComponent>() where TComponent : unmanaged
         {
             foreach (var pair in ReadComponentsIncludingEntity<TComponent>())
             {
@@ -25,17 +25,17 @@ namespace Encompass
             }
         }
 
-        protected Entity ReadEntity<TComponent>() where TComponent : struct, IComponent
+        protected Entity ReadEntity<TComponent>() where TComponent : unmanaged
         {
             return ReadComponentIncludingEntity<TComponent>().Item2;
         }
 
-        protected IEnumerable<TComponent> ReadComponents<TComponent>() where TComponent : struct, IComponent
+        protected IEnumerable<TComponent> ReadComponents<TComponent>() where TComponent : unmanaged
         {
             return _componentManager.GetComponentsByType<TComponent>();
         }
 
-        protected IEnumerable<(TComponent, Entity)> ReadComponentsIncludingEntity<TComponent>() where TComponent : struct, IComponent
+        protected IEnumerable<(TComponent, Entity)> ReadComponentsIncludingEntity<TComponent>() where TComponent : unmanaged
         {
             foreach (var (component, id) in _componentManager.GetComponentsIncludingEntity<TComponent>())
             {
@@ -43,31 +43,31 @@ namespace Encompass
             }
         }
 
-        protected TComponent ReadComponent<TComponent>() where TComponent : struct, IComponent
+        protected TComponent ReadComponent<TComponent>() where TComponent : unmanaged
         {
             var enumerator = ReadComponents<TComponent>().GetEnumerator();
             enumerator.MoveNext();
             return enumerator.Current;
         }
 
-        protected (TComponent, Entity) ReadComponentIncludingEntity<TComponent>() where TComponent : struct, IComponent
+        protected (TComponent, Entity) ReadComponentIncludingEntity<TComponent>() where TComponent : unmanaged
         {
             var enumerator = ReadComponentsIncludingEntity<TComponent>().GetEnumerator();
             enumerator.MoveNext();
             return enumerator.Current;
         }
 
-        protected ref readonly TComponent GetComponent<TComponent>(Entity entity) where TComponent : struct, IComponent
+        protected ref readonly TComponent GetComponent<TComponent>(Entity entity) where TComponent : unmanaged
         {
             return ref _componentManager.GetComponentByEntityAndType<TComponent>(entity.ID);
         }
 
-        protected bool HasComponent<TComponent>(Entity entity) where TComponent : struct, IComponent
+        protected bool HasComponent<TComponent>(Entity entity) where TComponent : unmanaged
         {
             return _componentManager.EntityHasComponentOfType<TComponent>(entity.ID);
         }
 
-        protected bool SomeComponent<TComponent>() where TComponent : struct, IComponent
+        protected bool SomeComponent<TComponent>() where TComponent : unmanaged
         {
             return _componentManager.SomeExistingComponent<TComponent>();
         }

encompass-cs/Renderers/OrderedRenderer.cs

@@ -5,7 +5,7 @@ namespace Encompass
     /// <summary>
     /// OrdereredRenderer provides a structure for the common pattern of wishing to draw a specific DrawComponent at a specific layer.
     /// </summary>
-    public abstract class OrderedRenderer<TComponent> : Renderer where TComponent : struct, IComponent, IDrawableComponent
+    public abstract class OrderedRenderer<TComponent> : Renderer where TComponent : unmanaged, IDrawableComponent
     {
         public abstract void Render(Entity entity, in TComponent drawComponent);
 

encompass-cs/WorldBuilder.cs

@@ -84,7 +84,7 @@ namespace Encompass
         /// <summary>
         /// Sets Component data for the specified Component Type on the specified Entity.
         /// </summary>
-        public void SetComponent<TComponent>(Entity entity, TComponent component) where TComponent : struct, IComponent
+        public void SetComponent<TComponent>(Entity entity, TComponent component) where TComponent : unmanaged
         {
             RegisterComponentType<TComponent>();
             _startingExistingComponentStore.Set(entity.ID, component);
@@ -97,7 +97,7 @@ namespace Encompass
             }
         }
 
-        internal void RegisterComponentType<TComponent>() where TComponent : struct, IComponent
+        internal void RegisterComponentType<TComponent>() where TComponent : unmanaged
         {
             if (!_typeToIndex.ContainsKey(typeof(TComponent)))
             {
@@ -183,7 +183,7 @@ namespace Encompass
         /// <summary>
         /// Adds the specified OrderedRenderer to the World.
         /// </summary>
-        public OrderedRenderer<TComponent> AddOrderedRenderer<TComponent>(OrderedRenderer<TComponent> renderer) where TComponent : struct, IComponent, IDrawableComponent
+        public OrderedRenderer<TComponent> AddOrderedRenderer<TComponent>(OrderedRenderer<TComponent> renderer) where TComponent : unmanaged, IDrawableComponent
         {
             RegisterComponentType<TComponent>();
             renderer.AssignEntityManager(_entityManager);
@@ -354,20 +354,6 @@ namespace Encompass
                 throw new EngineWriteConflictException(errorString);
             }
 
-            // doing reflection to grab all component types, because not all writes need to be declared
-            foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
-            {
-                foreach (var componentType in assembly.GetTypes())
-                {
-                    if (typeof(IComponent).IsAssignableFrom(componentType) && componentType.IsValueType && !componentType.IsEnum && !componentType.IsPrimitive)
-                    {
-                        var method = typeof(WorldBuilder).GetMethod("RegisterComponentType", BindingFlags.NonPublic | BindingFlags.Instance);
-                        var generic = method.MakeGenericMethod(componentType);
-                        generic.Invoke(this, null);
-                    }
-                }
-            }
-
             PreloadJIT(_componentTypesToPreload, _messageTypes);
 
             var engineOrder = new List<Engine>();

test/ComponentTest.cs

@@ -2,14 +2,14 @@ using NUnit.Framework;
 using FluentAssertions;
 
 using Encompass;
+using System.Runtime.CompilerServices;
 
 namespace Tests
 {
     public class ComponentTests
     {
-        struct MockComponent : Encompass.IComponent
+        struct MockComponent
         {
-            public string myString;
             public int myInt;
         }
 
@@ -54,16 +54,17 @@ namespace Tests
         }
 
         [Test]
-        public void AddComponent()
+        public unsafe void AddComponent()
         {
             var worldBuilder = new WorldBuilder();
             worldBuilder.AddEngine(new AddComponentTestEngine());
 
             var entity = worldBuilder.CreateEntity();
 
+            const string MyString = "hello";
+
             MockComponent mockComponent;
             mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 
@@ -85,16 +86,15 @@ namespace Tests
             worldBuilder.AddEngine(new ReadMockComponentEngine());
 
             var entity = worldBuilder.CreateEntity();
-            worldBuilder.SetComponent(entity, new MockComponent { myInt = 20, myString = "what" });
+            worldBuilder.SetComponent(entity, new MockComponent { myInt = 20 });
-            worldBuilder.SetComponent(entity, new MockComponent { myInt = 50, myString = "hi" });
+            worldBuilder.SetComponent(entity, new MockComponent { myInt = 50 });
-            worldBuilder.SetComponent(entity, new MockComponent { myInt = 40, myString = "wassup" });
+            worldBuilder.SetComponent(entity, new MockComponent { myInt = 40 });
 
             var world = worldBuilder.Build();
 
             world.Update(0.01);
 
             Assert.That(gottenMockComponent.myInt, Is.EqualTo(40));
-            Assert.That(gottenMockComponent.myString, Is.EqualTo("wassup"));
         }
 
         [Reads(typeof(MockComponent))]
@@ -191,7 +191,6 @@ namespace Tests
             {
                 MockComponent mockComponent;
                 mockComponent.myInt = 10;
-                mockComponent.myString = "four";
 
                 AddMockComponentMessage addMockComponentMessage;
                 addMockComponentMessage.entity = entity;
@@ -255,9 +254,8 @@ namespace Tests
 
             MockComponent mockComponent;
             mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
-            worldBuilder.SetComponent<MockComponent>(entity, mockComponent);
+            worldBuilder.SetComponent(entity, mockComponent);
 
             EntityMessage entityMessage;
             entityMessage.entity = entity;
@@ -298,7 +296,6 @@ namespace Tests
 
             MockComponent mockComponent;
             mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 
@@ -336,7 +333,6 @@ namespace Tests
 
             MockComponent mockComponent;
             mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 
@@ -446,7 +442,6 @@ namespace Tests
 
             MockComponent mockComponent;
             mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 

test/EngineTest.cs

@@ -10,10 +10,9 @@ using Encompass.Exceptions;
 
 namespace Tests
 {
-    struct MockComponent : IComponent
+    struct MockComponent
     {
         public int myInt;
-        public string myString;
     }
 
     public class EngineTest
@@ -72,12 +71,10 @@ namespace Tests
             var entityB = worldBuilder.CreateEntity();
 
             MockComponent mockComponent;
-            mockComponent.myInt = 0;
+            mockComponent.myInt = 2;
-            mockComponent.myString = "hello";
 
             MockComponent mockComponentB;
             mockComponentB.myInt = 1;
-            mockComponentB.myString = "howdy";
 
             worldBuilder.SetComponent(entity, mockComponent);
             worldBuilder.SetComponent(entityB, mockComponentB);
@@ -100,12 +97,10 @@ namespace Tests
             var entityB = worldBuilder.CreateEntity();
 
             MockComponent mockComponent;
-            mockComponent.myInt = 0;
+            mockComponent.myInt = 2;
-            mockComponent.myString = "hello";
 
             MockComponent mockComponentB;
             mockComponentB.myInt = 1;
-            mockComponentB.myString = "howdy";
 
             worldBuilder.SetComponent(entity, mockComponent);
             worldBuilder.SetComponent(entityB, mockComponentB);
@@ -135,8 +130,7 @@ namespace Tests
             var entity = worldBuilder.CreateEntity();
 
             MockComponent mockComponent;
-            mockComponent.myInt = 0;
+            mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 
@@ -157,12 +151,10 @@ namespace Tests
             var entityB = worldBuilder.CreateEntity();
 
             MockComponent mockComponent;
-            mockComponent.myInt = 0;
+            mockComponent.myInt = 2;
-            mockComponent.myString = "hello";
 
             MockComponent mockComponentB;
             mockComponentB.myInt = 1;
-            mockComponentB.myString = "howdy";
 
             worldBuilder.SetComponent(entity, mockComponent);
             worldBuilder.SetComponent(entityB, mockComponentB);
@@ -183,8 +175,7 @@ namespace Tests
             var entity = worldBuilder.CreateEntity();
 
             MockComponent mockComponent;
-            mockComponent.myInt = 0;
+            mockComponent.myInt = 2;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 
@@ -204,7 +195,6 @@ namespace Tests
                 var (component, entity) = ReadComponentIncludingEntity<MockComponent>();
 
                 component.myInt = 420;
-                component.myString = "blaze it";
                 SetComponent(entity, component);
             }
         }
@@ -222,8 +212,7 @@ namespace Tests
             var entity = worldBuilder.CreateEntity();
 
             MockComponent mockComponent;
-            mockComponent.myInt = 0;
+            mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 
@@ -233,7 +222,6 @@ namespace Tests
             world.Update(0.01);
 
             Assert.AreEqual(420, resultComponent.myInt);
-            Assert.AreEqual("blaze it", resultComponent.myString);
         }
 
         [Reads(typeof(MockComponent))]
@@ -244,7 +232,6 @@ namespace Tests
                 var (component, entity) = ReadComponentIncludingEntity<MockComponent>();
 
                 component.myInt = 420;
-                component.myString = "blaze it";
                 SetComponent(entity, component);
 
                 component = ReadComponent<MockComponent>();
@@ -260,8 +247,7 @@ namespace Tests
             var entity = worldBuilder.CreateEntity();
 
             MockComponent mockComponent;
-            mockComponent.myInt = 0;
+            mockComponent.myInt = 3;
-            mockComponent.myString = "hello";
 
             worldBuilder.SetComponent(entity, mockComponent);
 
@@ -594,11 +580,9 @@ namespace Tests
 
             MockComponent componentA;
             componentA.myInt = 20;
-            componentA.myString = "hello";
 
             MockComponent componentB;
             componentB.myInt = 20;
-            componentB.myString = "hello";
 
             var entity = worldBuilder.CreateEntity();
             worldBuilder.SetComponent(entity, componentA);
@@ -636,7 +620,7 @@ namespace Tests
             Assert.That(emptyComponentReadResult, Is.Empty);
         }
 
-        struct DestroyerComponent : IComponent { }
+        struct DestroyerComponent { }
 
         [Reads(typeof(DestroyerComponent))]
         class DestroyerEngine : Engine
@@ -675,7 +659,6 @@ namespace Tests
             DestroyerComponent destroyerComponent;
             MockComponent mockComponent;
             mockComponent.myInt = 2;
-            mockComponent.myString = "blah";
 
             worldBuilder.SetComponent(entity, destroyerComponent);
             worldBuilder.SetComponent(entity, mockComponent);
@@ -975,14 +958,14 @@ namespace Tests
             entity.Should().BeEquivalentTo(readEntity);
         }
 
-        struct MockComponentB : IComponent
+        struct MockComponentB
         {
+            private int value;
+
             public MockComponentB(int value)
             {
                 this.value = value;
             }
-
-            int value;
         }
 
         static MockComponentB getComponentResult;
@@ -1420,9 +1403,9 @@ namespace Tests
 
         public class QueryTests
         {
-            struct MockComponentB : IComponent { }
+            struct MockComponentB { }
-            struct MockComponentC : IComponent { }
+            struct MockComponentC { }
-            struct MockComponentD : IComponent { }
+            struct MockComponentD { }
 
             [Reads(typeof(MockComponent), typeof(MockComponentB))]
             [Writes(typeof(MockComponentB))]
@@ -1877,14 +1860,14 @@ namespace Tests
                 _components.Should().NotBeEmpty();
             }
 
-            struct MockTimerComponent : IComponent
+            struct MockTimerComponent
             {
+                public double Timer { get; set; }
+
                 public MockTimerComponent(double time)
                 {
                     Timer = time;
                 }
-
-                public double Timer { get; set; }
             }
 
             [Reads(typeof(MockTimerComponent))]

test/GeneralRendererTest.cs

@@ -5,7 +5,7 @@ namespace Tests
 {
     public static class GeneralRendererTest
     {
-        struct AComponent : IComponent { }
+        struct AComponent { }
 
         public class SingletonRead
         {

test/OrderedRendererTest.cs

@@ -9,11 +9,11 @@ namespace Tests
 {
     public class OrderedRendererTest
     {
-        struct AComponent : IComponent { }
+        struct AComponent { }
-        struct BComponent : IComponent { }
+        struct BComponent { }
-        struct CComponent : IComponent { }
+        struct CComponent { }
 
-        struct TestDrawComponent : IComponent, IDrawableComponent
+        struct TestDrawComponent : IDrawableComponent
         {
             public int Layer { get; set; }
         }

test/SpawnerTest.cs

@@ -5,7 +5,7 @@ namespace Tests
 {
     public class SpawnerTest
     {
-        struct TestComponent : IComponent { }
+        struct TestComponent { }
         struct SpawnMessageA : IMessage { }
 
         static Entity resultEntity;

test/WorldBuilderTest.cs

@@ -114,7 +114,7 @@ namespace Tests
 
         public class MultipleEngineWriteConflict
         {
-            struct AComponent : IComponent { }
+            struct AComponent { }
 
             [Writes(typeof(AComponent))]
             class AEngine : Engine
@@ -146,7 +146,7 @@ namespace Tests
                 public Entity entity;
             }
 
-            struct AComponent : IComponent
+            struct AComponent
             {
                 public int myInt;
             }
@@ -215,7 +215,7 @@ namespace Tests
                 public Entity entity;
             }
 
-            struct AComponent : IComponent
+            struct AComponent
             {
                 public int myInt;
             }
@@ -318,28 +318,6 @@ namespace Tests
             }
         }
 
-        public class IllegalReadType
-        {
-            struct ANonMessage { }
-
-            [Reads(typeof(ANonMessage))]
-            class MyEngine : Engine
-            {
-                public override void Update(double dt)
-                {
-
-                }
-            }
-
-            [Test]
-            public void ThrowsError()
-            {
-                var worldBuilder = new WorldBuilder();
-
-                Assert.Throws<IllegalReadTypeException>(() => worldBuilder.AddEngine(new MyEngine()), "ANonMessage must be a Message or Component");
-            }
-        }
-
         public class IllegalWriteType
         {
             struct ANonMessage { }
@@ -428,8 +406,8 @@ namespace Tests
         {
             static List<Engine> order = new List<Engine>();
 
-            struct AComponent : IComponent { }
+            struct AComponent { }
-            struct BComponent : IComponent { }
+            struct BComponent { }
 
             struct AMessage : IMessage { }
             struct BMessage : IMessage { }

test/WorldTest.cs

@@ -11,8 +11,8 @@ namespace Tests
 {
     public class WorldTest
     {
-        struct TestComponent : IComponent { }
+        struct TestComponent { }
-        struct TestDrawComponent : IComponent, IDrawableComponent
+        struct TestDrawComponent : IDrawableComponent
         {
             public int Layer { get; set; }
         }

test/test.csproj

@@ -5,6 +5,7 @@
     <IsPackable>false</IsPackable>
     <RootNamespace>Tests</RootNamespace>
     <AssemblyName>EncompassECS.Framework.Tests</AssemblyName>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="FluentAssertions" Version="5.7.0" />