Fixing hierarchy listing of deleted objects

src/editor/ui/hierarchy/hierarchy_window.go

@@ -130,12 +130,15 @@ func (h *Hierarchy) orderEntitiesVisually() []entityEntry {
 	entries := make([]entityEntry, 0, len(allEntities))
 	roots := make([]*engine.Entity, 0, len(allEntities))
 	for _, entity := range allEntities {
-		if entity.IsRoot() {
+		if entity.IsRoot() && !entity.EditorBindings.IsDeleted {
 			roots = append(roots, entity)
 		}
 	}
 	var addChildren func(*engine.Entity)
 	addChildren = func(entity *engine.Entity) {
+		if entity.EditorBindings.IsDeleted {
+			return
+		}
 		entries = append(entries, entityEntry{entity, false})
 		for _, c := range entity.Children {
 			addChildren(c)

src/editor/viewport/tools/deleter/delete_history.go

@@ -51,6 +51,7 @@ type deleteHistory struct {
 func (h *deleteHistory) Redo() {
 	for _, e := range h.entities {
 		draws := e.EditorBindings.Drawings()
+		e.EditorBindings.IsDeleted = true
 		for _, d := range draws {
 			d.ShaderData.Deactivate()
 		}
@@ -67,6 +68,7 @@ func (h *deleteHistory) Redo() {
 func (h *deleteHistory) Undo() {
 	for _, e := range h.entities {
 		draws := e.EditorBindings.Drawings()
+		e.EditorBindings.IsDeleted = false
 		for _, d := range draws {
 			d.ShaderData.Activate()
 		}

src/engine/entity.ed.go

@@ -54,7 +54,8 @@ const (
 )
 
 type entityEditorBindings struct {
-	data map[string]any
+	data      map[string]any
+	IsDeleted bool
 }
 
 func (e *entityEditorBindings) init() {