Node Based Visual Graph System for Unity

This graph editor allows you to skip the editor work and create a Node Graph that is customizable. The tool that uses Unity's Experimental GraphView.

Visul Graph Features

• Extensible
• Scriptable Assets that can be used at rumtime through custom behaviour
• Minimap.
• Search window.
• Blackboard that supports most types.

Usage

• VisualGraph generates a starting point for you to create your custom graph
• To start create a script that extends VisualGraphNode. This is either the basic node for your graph or a base node your graph will use.
  • You can add the following attributes: [NodeName()] [NodePortAggregate()] [PortCapacity()] [CustomNodeStyle()]
  • You can create more node scripts that extend your base node
• Next create a script that extends VisualGraph, add [CreateAssetMenu] and [DefaultNodeType(typeof(YOURBASENODE_YOU_JUST_CREATED))]
• Generate your graph
• It is recommended to extend the VisualGraphMonoBehaviour<T> to create a MonoBehaviour to use in your game
  • The VisualGraphMonoBehaviour<T> will create an internal copy of the graph so it does not change the actual ScriptableObject data (at runtime and in the editor)
• Once you have created your VisualGraphMonoBehaviour<T> script add this to a game object. Access the graph by using InternalGraph
• From there you can navigate your graph in your node scripts.
• You can also add Blackboard properties to your graph, if you have added the graph to you MonoBehaviour it will make a copy of the properties
  • Properties can be overriden and set which are used at runtime
  • There are refresh issues with the properties in the inspector (working on this)

Examples

Basic Example Graph

FSM Example

Bugs

• Inspector does not refresh when blackboard properties change (new, delete, or update)