Created editor project and moved Editor there

GlitchyEditor/src/Editor.bf

@@ -0,0 +1,108 @@
+using GlitchyEngine.World;
+using ImGui;
+using System;
+using System.Collections;
+using GlitchyEngine.Collections;
+using GlitchyEditor.EditWindows;
+
+namespace GlitchyEditor
+{
+	class Editor
+	{
+		private EcsWorld _world;
+		
+		private EntityHierarchyWindow _entityHierarchyWindow = new .(this) ~ delete _;
+		private ComponentEditWindow _componentEditWindow = new .(this) ~ delete _;
+
+		private List<Entity> _selectedEntities = new .() ~ delete _;
+
+		public EcsWorld World => _world;
+
+		public List<Entity> SelectedEntities => _selectedEntities;
+
+		/// Creates a new editor for the given world
+		public this(EcsWorld world)
+		{
+			_world = world;
+		}
+
+		public void Update()
+		{
+			_entityHierarchyWindow.Show();
+			_componentEditWindow.Show();
+		}
+
+		/// Creates a new entity with a transform component.
+		internal Entity CreateEntityWithTransform()
+		{
+			var entity = _world.NewEntity();
+
+			var transformComponent = ref *_world.AssignComponent<TransformComponent>(entity);
+			transformComponent = TransformComponent();
+
+			var nameComponent = ref *_world.AssignComponent<DebugNameComponent>(entity);
+			nameComponent.SetName("Entity");
+
+			return entity;
+		}
+
+		
+		/// Returns whether or not all selected entities have the same parent.
+		internal bool AllSelectionsOnSameLevel()
+		{
+			Entity? parent = .InvalidEntity;
+
+			for(var selectedEntity in _selectedEntities)
+			{
+				var parentComponent = _world.GetComponent<ParentComponent>(selectedEntity);
+
+				if(parent == .InvalidEntity)
+				{
+					parent = parentComponent?.Entity;
+				}
+				else if(parentComponent?.Entity != parent)
+				{
+					return false;
+				}
+			}
+
+			return true;
+		}
+
+		/// Finds all children of the given entity and stores their IDs in the given list.
+		internal void FindChildren(Entity entity, List<Entity> entities)
+		{
+			for(var (child, childParent) in _world.Enumerate<ParentComponent>())
+			{
+				if(childParent.Entity == entity)
+				{
+					if(!entities.Contains(child))
+						entities.Add(child);
+
+					FindChildren(child, entities);
+				}
+			}
+		}
+
+		/// Deletes all selected entities and their children.
+		internal void DeleteSelectedEntities()
+		{
+			List<Entity> entities = scope .();
+
+			for(var entity in _selectedEntities)
+			{
+				entities.Add(entity);
+
+				FindChildren(entity, entities);
+			}
+
+			for(var entity in entities)
+			{
+				_world.RemoveEntity(entity);
+			}
+
+			_selectedEntities.Clear();
+		}
+
+	}
+}