Unduh UnityRuntimeNodeEditor - Unduh Kode Sumber UnityRuntimeNodeEditor

Editor Node

Editor Node Runtime

Hampir setiap editor node yang dibuat di Unity menggunakan Unity Editor untuk membuatnya.
Tujuan saya adalah membuatnya dalam runtime dengan Unity UI.

Koneksi berbasis soket
Memuat dan menyimpan grafik menggunakan serializer simpul
Menu konteks untuk grafik, node dan koneksi
Pemberitahuan Berbasis Acara
Pan dan Zoom
Banyak editor dapat ditanamkan dalam sebuah adegan
Buat grafik dengan API atau prefab khusus
Sistem input warisan dan baru

Versi Unity 2021.3.3f1

Editor Node

Contoh Tampilan Warna RGB

Editor Node

Contoh

Cukup rentangkan NodeEditor .

 public class ExampleNodeEditor : NodeEditor
{
    public override void StartEditor ( NodeGraph graph )
    {
        base . StartEditor ( graph ) ;

        //  make your custom initialization here
    }
}

Buat grafik menggunakan API, grafik akan meregangkan ke objek Holder. (Tidak ada prefab yang melibatkan)

 public class ApplicationStartup : MonoBehaviour
{
    public RectTransform        editorHolder ;
    public ExampleNodeEditor    editor ;    //  asigned in unity from hierarchy

    private void Start ( )
    {
        var graph = editor . CreateGraph < NodeGraph > ( editorHolder ) ;
        // var graph = editor.CreateGraph<NodeGraph>(editorHolder, bgColor, connColor);
        editor . StartEditor ( graph ) ;
    }
}

Anda mungkin ingin menggunakan grafik khusus dan prefab Anda sendiri juga.

 public class ApplicationStartup : MonoBehaviour
{
    public RectTransform        editorHolder ;
    public ExampleNodeEditor    editor ;

    private void Start ( )
    {
        editor . StartEditor ( graph ) ;
    }
}

Tindakan grafik berbasis acara.

Editor Node

Anda akan menemukan contoh lengkap di folder contoh. Mari kita waspada.

Dengarkan Acara dari Editor

 public class ExampleNodeEditor : NodeEditor
{
    private string _savePath ;

    public override void StartEditor ( NodeGraph graph )
    {
        base . StartEditor ( graph ) ;

        _savePath = Application . dataPath + "/Example/Resources/graph.json" ;
        
        Events . OnGraphPointerClickEvent           += OnGraphPointerClick ;
        Events . OnGraphPointerDragEvent            += OnGraphPointerDrag ;
        Events . OnNodePointerClickEvent            += OnNodePointerClick ;
        Events . OnConnectionPointerClickEvent      += OnNodeConnectionPointerClick ;
    }
}

Menu Konteks Grafik

 protected override void OnGraphPointerClick ( PointerEventData eventData )
{
    switch ( eventData . button )
    {
        case PointerEventData . InputButton . Right : 
        {
            var ctx = new ContextMenuBuilder ( )
            . Add ( "nodes/float" ,          CreateFloatNode )
            . Add ( "nodes/math op" ,       CreateMatOpNode )
            . Add ( "graph/load" ,          ( ) => LoadGraph ( _savePath ) )
            . Add ( "graph/save" ,          ( ) => SaveGraph ( _savePath ) )
            . Build ( ) ;

            SetContextMenu ( ctx ) ;
            DisplayContextMenu ( ) ; 
        }
        break ;
        case PointerEventData . InputButton . Left : CloseContextMenu ( ) ; break ;
    }
}

menu konteks node

 protected override void OnNodePointerClick ( Node node , PointerEventData eventData )
{
    if ( eventData . button == PointerEventData . InputButton . Right )
    {
            var ctx = new ContextMenuBuilder ( )
            . Add ( "duplicate" ,            ( ) => DuplicateNode ( node ) )
            . Add ( "clear connections" ,    ( ) => ClearConnections ( node ) )
            . Add ( "delete" ,               ( ) => DeleteNode ( node ) )
            . Build ( ) ;

        SetContextMenu ( ctx ) ;
        DisplayContextMenu ( ) ;
    }
}

menu konteks koneksi

 protected override void OnNodeConnectionPointerClick ( string connId , PointerEventData eventData )
{
    if ( eventData . button == PointerEventData . InputButton . Right )
    {
        var ctx = new ContextMenuBuilder ( )
        . Add ( "clear connection" , ( ) => DisconnectConnection ( connId ) )
        . Build ( ) ;

        SetContextMenu ( ctx ) ;
        DisplayContextMenu ( ) ;
    }
}

Itu telah dikatakan, untuk membuat simpul baru:

 public class MyAwesomeNode : Node
{
    public TMP_InputField valueField ;   //  added from editor
    public SocketOutput outputSocket ;   //  added from editor
    public SocketInput inputSocket ;     //  added from editor

    public override void Setup ( )
    {
        Register ( outputSocket ) ;
        Register ( inputSocket ) ;

        SetHeader ( "float" ) ;
    }

    public override void OnSerialize ( Serializer serializer )
    {
        //  save values on graph save
        serializer . Add ( "floatValue" , valueField . text ) ;

        //  it would be good idea to use JsonUtility for complex data
    }

    public override void OnDeserialize ( Serializer serializer )
    {
        //  load values on graph load
        var value = serializer . Get ( "floatValue" ) ;
        valueField . SetTextWithoutNotify ( value ) ;
    }
}

Untuk membuat simpul dari editor Anda, lewati jalurnya dari folder Resources .

 //  context item actions
private void CreateMyNode ( )
{
    graph . Create ( "Prefabs/Nodes/MyAwesomeNode" ) ;    //  your prefab path in resources
}