/// <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);
}
private void OnActorSpawned(Actor actor)
{
// Skip for not loaded scenes (spawning actors during scene loading in script Start function)
var sceneNode = GetActorNode(actor.Scene);
if (sceneNode == null)
{
return;
}
// Skip for missing parent
var parent = actor.Parent;
if (parent == null)
{
return;
}
var parentNode = GetActorNode(parent);
if (parentNode == null)
{
// Missing parent node when adding child actor to not spawned or unlinked actor
return;
}
var node = SceneGraphFactory.BuildActorNode(actor);
if (node != null)
{
node.TreeNode.UnlockChildrenRecursive();
node.ParentNode = parentNode;
}
}
private void OnActorParentChanged(Actor actor, Actor prevParent)
{
ActorNode node = null;
var parentNode = GetActorNode(actor.Parent);
// Try use previous parent actor to find actor node
var prevParentNode = GetActorNode(prevParent);
if (prevParentNode != null)
{
// If should be one of the children
node = prevParentNode.FindChildActor(actor);
// Search whole tree if node was not found
if (node == null)
{
node = GetActorNode(actor);
}
}
else if (parentNode != null)
{
// Create new node for that actor (user may unlink it from the scene before and now link it)
node = SceneGraphFactory.BuildActorNode(actor);
}
if (node == null)
{
return;
}
// Get the new parent node (may be missing)
if (parentNode != null)
{
// Change parent
node.TreeNode.UnlockChildrenRecursive();
node.ParentNode = parentNode;
}
else
{
// Check if actor is selected in editor
if (Editor.SceneEditing.Selection.Contains(node))
{
Editor.SceneEditing.Deselect();
}
// Remove node (user may unlink actor from the scene but not destroy the actor)
node.Dispose();
}
}
private void OnActorParentChanged(Actor actor, Actor prevParent)
{
ActorNode node = null;
// Try use previous parent actor to find actor node
var prevParentNode = GetActorNode(prevParent);
if (prevParentNode != null)
{
// If should be one of the children
node = prevParentNode.FindChildActor(actor);
// Search whole tree if node was not found
if (node == null)
{
node = GetActorNode(actor);
}
}
else
{
// Create new node for that actor (user may unlink it from the scene before and now link it)
node = SceneGraphFactory.BuildActorNode(actor);
}
if (node == null)
{
return;
}
// Get the new parent node (may be missing)
var parentNode = GetActorNode(actor.Parent);
if (parentNode != null)
{
// Change parent
node.ParentNode = parentNode;
}
else
{
// Remove node (user may unlink actor from the scene but not destroy the actor)
node.Dispose();
}
}