/// <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);
}
/// <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);
}
