fix non immediate component remove

encompass-cs/ComponentManager.cs

@@ -97,14 +97,12 @@ namespace Encompass
             return false;
         }
 
-        public bool Remove<TComponent>(Entity entity, int priority) where TComponent : struct, IComponent
+        public void Remove<TComponent>(Entity entity, int priority) where TComponent : struct, IComponent
         {
             if (componentUpdateManager.Remove<TComponent>(entity, priority))
             {
                 drawLayerManager.UnRegisterComponentWithLayer<TComponent>(entity.ID);
-                return true;
             }
-            return false;
         }
     }
 }

encompass-cs/ComponentUpdateManager.cs

@@ -76,13 +76,7 @@ namespace Encompass
 
         internal bool Remove<TComponent>(Entity entity, int priority) where TComponent : struct, IComponent
         {
-            if (existingComponentStore.Remove<TComponent>(entity.ID, priority))
+            return UpToDateComponentStore.Remove<TComponent>(entity.ID, priority);
-            {
-                UpToDateComponentStore.Remove<TComponent>(entity.ID, priority);
-                return true;
-            }
-
-            return false;
         }
 
         public bool UpdateComponent<TComponent>(Entity entity, TComponent component, int priority) where TComponent : struct, IComponent

test/EngineTest.cs

@@ -1539,6 +1539,58 @@ namespace Tests
 
                 _components.Should().NotBeEmpty();
             }
+
+            struct MockTimerComponent : IComponent
+            {
+                public MockTimerComponent(double time)
+                {
+                    Timer = time;
+                }
+
+                public double Timer { get; set; }
+            }
+
+            [Reads(typeof(MockTimerComponent))]
+            [Writes(typeof(MockTimerComponent))]
+            class ReadWhileRemovingComponentsEngine : Engine
+            {
+                public override void Update(double dt)
+                {
+                    foreach (var (component, entity) in ReadComponentsIncludingEntity<MockTimerComponent>())
+                    {
+                        var updatedComponent = component;
+                        updatedComponent.Timer -= dt;
+
+                        if (updatedComponent.Timer <= 0)
+                        {
+                            RemoveComponent<MockTimerComponent>(entity);
+
+                        }
+                        else
+                        {
+                            SetComponent<MockTimerComponent>(entity, updatedComponent);
+                        }
+                    }
+                }
+            }
+
+            [Test]
+            public void ReadWhileRemovingComponents()
+            {
+                var worldBuilder = new WorldBuilder();
+
+                var entity = worldBuilder.CreateEntity();
+                worldBuilder.SetComponent(entity, new MockTimerComponent(0.5));
+
+                var entityB = worldBuilder.CreateEntity();
+                worldBuilder.SetComponent(entityB, new MockTimerComponent(0.4));
+
+                worldBuilder.AddEngine(new ReadWhileRemovingComponentsEngine());
+
+                var world = worldBuilder.Build();
+                Assert.DoesNotThrow(() => world.Update(0.2));
+                Assert.DoesNotThrow(() => world.Update(0.25));
+            }
         }
     }
 }