A scriptable object framework and node graph UI that lets you easily create complex branching trees of data.

Scriptable Object Graph

A Graph object can contain Node and Connection objects that connect with each other to create a tree.

Node's can be added to a graph by defining [L3CreateNodeMenu] on the node class.

Inside the Graph object you define what sort of connections the class supports.

using Less3.Graph;

[CreateAssetMenu(fileName = "GenerationGraph", menuName = "Example/Graph")]
public class GenerationGraph : L3Graph
{
    // Define what connection types the graph uses
    public override Dictionary<Type, List<(string, Type)>> GraphConnectionTypes()
    {
        return new Dictionary<Type, List<(string, Type)>>
        {
            {typeof(GenerationNode), new List<(string,Type)>() {
                ("Gen Connection", typeof(GenerationConnection))
            }}
        };
    }

    public override bool ValidateConnectionRequest(ForceNode from, ForceNode to, Type connectionType)
    {
        return true;// assume all connections are valid
    }
}

Connections and Nodes behave as simple scriptable objects you can fill with whatever data you need.

[L3CreateNodeMenu(typeof(GenerationGraph), "Example Node")] // Add node to create node menu for our graph
public class GenerationNode : L3GraphNode
{
    public float exampleData;
}

public class GenerationConnection : L3GraphConnection
{
    public float helloThere;
}

Canvas

The graph objects are rendered using a Generic LCanvas<N,C,G> VisualElement. This element handles the entire graph GUI, with callbacks to apply changes made inside the editor. Meaning you should be able to substitute the L3Graph types if you wish, or use the graph to read-only render some data.

Refer to L3GraphInspector to see how things are currently piped.

Words of warning.

1. This tool is in a "just good enough" state. It's missing many QOL features like robust undo and multi-selection.
2. Be wary of using tools like this that create very complex cofiguration. Consider the simplest method to define your data, before you decide you need to spread it out across many objects in a tree.
3. Designed for humans.