Esempio n. 1
0
        /// <summary>
        /// Spawns the specified actor.
        /// </summary>
        /// <param name="actor">The actor.</param>
        /// <param name="parent">The parent.</param>
        public void Spawn(Actor actor, Actor parent)
        {
            if (actor == null)
            {
                throw new ArgumentNullException(nameof(actor));
            }

            // Link it
            actor.Parent = parent ?? throw new ArgumentNullException(nameof(parent));

            // Peek spawned node
            var actorNode = SceneGraphFactory.FindNode(actor.ID) as ActorNode ?? SceneGraphFactory.BuildActorNode(actor);

            if (actorNode == null)
            {
                throw new InvalidOperationException("Failed to create scene node for the spawned actor.");
            }

            var parentNode = SceneGraphFactory.FindNode(parent.ID) as ActorNode;

            actorNode.ParentNode = parentNode ?? throw new InvalidOperationException("Missing scene graph node for the spawned parent actor.");

            // Call post spawn action (can possibly setup custom default values)
            actorNode.PostSpawn();

            // Create undo action
            var action = new CustomDeleteActorsAction(new List <SceneGraphNode>(1)
            {
                actorNode
            }, true);

            Undo.AddAction(action);
        }
Esempio n. 2
0
        /// <summary>
        /// Deletes selected objects.
        /// </summary>
        public void Delete()
        {
            // Peek things that can be removed
            var objects = Selection.Where(x => x.CanDelete && x != Graph.Main).ToList().BuildAllNodes().Where(x => x.CanDelete).ToList();

            if (objects.Count == 0)
            {
                return;
            }

            // Change selection
            var action1 = new SelectionChangeAction(Selection.ToArray(), new SceneGraphNode[0], OnSelectionUndo);

            // Delete objects
            var action2 = new CustomDeleteActorsAction(objects);

            // Merge actions and perform them
            var action = new MultiUndoAction(new IUndoAction[]
            {
                action1,
                action2
            }, action2.ActionString);

            action.Do();
            Undo.AddAction(action);
        }