public EntityNode CreateFromExisting(Transform t, Transform parent)
{
var entity = Registry.CreateEntity(
new UTinyId(System.Guid.NewGuid()),
t.name);
var entityRef = (UTinyEntity.Reference)entity;
var entityGroupRef = EntityGroupRef.Dereference(Registry);
Assert.IsNotNull(entityGroupRef);
entity.EntityGroup = entityGroupRef;
entityGroupRef.AddEntityReference(entityRef);
entity.AddComponent(Registry.GetTransformType());
entity.View = t.GetComponent <UTinyEntityView>();
CreateLink(entity);
var node = new EntityNode {
Entity = entityRef, Graph = this
};
node.Graph.Add(node);
if (parent)
{
var parentview = parent.GetComponent <UTinyEntityView>();
Assert.IsNotNull(parentview);
var parentNode = FindNode((UTinyEntity.Reference)parentview.EntityRef.Dereference(parentview.Registry));
node.SetParent(parentNode as EntityNode);
}
return(node);
}
private DragAndDropVisualMode HandleResourceDropped(Object obj, DragAndDropArgs args)
{
var parent = args.parentItem as HierarchyTreeItemBase;
EntityNode entityNode = null;
switch (args.dragAndDropPosition)
{
case DragAndDropPosition.UponItem:
{
if (parent is HierarchyEntityGroupGraph)
{
var graph = (parent as HierarchyEntityGroupGraph).Value;
entityNode = graph.Create();
}
if (parent is HierarchyEntity)
{
var node = (parent as HierarchyEntity).Value;
entityNode = node.Graph.Create(node);
}
// Set as last non-static sibling.
else if (parent is HierarchyStaticEntity)
{
var node = (parent as HierarchyStaticEntity).Value;
entityNode = node.Graph.Create();
}
}
break;
case DragAndDropPosition.BetweenItems:
{
if (rootItem == parent)
{
if (args.insertAtIndex <= 0)
{
return(DragAndDropVisualMode.Rejected);
}
var graph = (parent.children[args.insertAtIndex - 1] as HierarchyEntityGroupGraph).Value;
entityNode = graph.Create();
}
else if (parent is HierarchyEntityGroupGraph)
{
var groupItem = parent as HierarchyEntityGroupGraph;
var graph = groupItem.Value;
var index = (args.insertAtIndex >= parent.children.Count || args.insertAtIndex >= graph.Roots.Count) ? -1 : args.insertAtIndex;
entityNode = graph.Create();
graph.Insert(index, entityNode);
}
else if (parent is HierarchyEntity)
{
var parentNode = (parent as HierarchyEntity).Value;
var firstIndex = args.insertAtIndex;
entityNode = parentNode.Graph.Create();
entityNode.SetParent(firstIndex, parentNode);
}
// Between static entities, set as last sibling of non-static entities
else if (parent is HierarchyStaticEntity)
{
var graph = (parent as HierarchyStaticEntity).Value.Graph;
entityNode = graph.Create();
}
}
break;
case DragAndDropPosition.OutsideItems:
{
var graph = UTinyHierarchyWindow.GetSceneGraph(m_EntityGroups.Last());
entityNode = graph.Create();
}
break;
default:
{
return(DragAndDropVisualMode.Rejected);
}
}
if (!UTinyEntity.Reference.None.Equals(entityNode.Entity))
{
AddToEntity(entityNode.Entity, obj);
var ids = AsInstanceIds(entityNode);
Selection.instanceIDs = ids;
IdsToExpand = ids;
return(DragAndDropVisualMode.Link);
}
return(DragAndDropVisualMode.Rejected);
}
public void Insert(int siblingIndex, EntityNode child)
{
child.SetParent(siblingIndex, this);
}
public void Add(EntityNode child)
{
child.SetParent(this);
}