Support arrays

[alelievr]

Support arrays

[alelievr]

Hello,

What do you mean by array support ?

Note that you can already take a list of inputs in parameter of a node if you have a CustomPortInput function, just like the Multi Add node example:

[System.Serializable, NodeMenuItem("Custom/MultiAdd")]
public class MultiAddNode : BaseNode
{
	[Input]
	public IEnumerable< float >	inputs = null;

	[Output]
	public float				output;

	public override string		name => "Add";

	protected override void Process()
	{
		output = 0;

		if (inputs == null)
			return ;

		foreach (float input in inputs)
			output += input;
	}

	[CustomPortBehavior(nameof(inputs))]
	IEnumerable< PortData > GetPortsForInputs(List< SerializableEdge > edges)
	{
		yield return new PortData{ displayName = "In ", displayType = typeof(float), acceptMultipleEdges = true};
	}

	[CustomPortInput(nameof(inputs), typeof(float), allowCast = true)]
	public void GetInputs(List< SerializableEdge > edges)
	{
		inputs = edges.Select(e => (float)e.passThroughBuffer);
	}
}

Source here: https://github.com/alelievr/NodeGraphProcessor/blob/master/Assets/Examples/DefaultNodes/Nodes/MultiAddNode.cs

In this example the CustomPortBehavior is used to generate the visible ports on the node, here i'm using it to change the display type of the node.
And the CustomPortInput is used to aggregate the values in the input edges to our inputs float list.

[Bezarius]

I'm about node like Prefab but with prefab array

[alelievr]

Ah okay, yes it can be done with a custom inspector like so:

Source (the code isn't tested but is conceptually correct)

[NodeCustomEditor(typeof(PrefabNodeArray))]
public class PrefabNodeView : BaseNodeView
{
	PrefabNodeArray array;
	ReorderableList list;

	public override void Enable()
	{
		// base.Enable();
		controlsContainer.Add(new IMGUIContainer(DrawArray));
		array = nodeTarget as PrefabNodeArray;
		list = new ReorderableList(array.goArray, typeof(GameObject));
		style.width = 230;
		list.drawElementCallback = (Rect rect, int index, bool isActive, bool isFocused) => {
			array.goArray[index] = EditorGUI.ObjectField(rect, array.goArray[index], typeof(GameObject), false) as GameObject;
		};
	}

	void DrawArray()
	{
		list.DoLayoutList();
	}
}

[System.Serializable, NodeMenuItem("Custom/Prefab Array")]
public class PrefabNodeArray : BaseNode
{
	[Output(name = "Out"), SerializeField]
	public List<GameObject>		goArray = new List<GameObject>();

	public override string		name => "Prefab Array";
}

You can also have multiple ports as output depending on your array size with the CustomPortBehavior attribute

[Bezarius]

Thanks a lot!

[arycama]

Is there any chance of making this the default behaviour when a public/serialized array is declared in a node?