Unity Bezier Curves / Editor Scripting

Some experiments with Unity Editor scripting and Bezier Splines. This code draws some inspiration from the Bezier Curve Editor Unity asset; especially borrowing the technique to render all handles even if a specific waypoint object is selected.

Implemented features:

• Game objects transforms as waypoints,
• Gizmos for rendering the curve outside the editor,
• Editor GUI handles for modifying control points,
• Re-using the same Editor GUI for both node and path components,
• Connected, symmetric and broken handles,
• Open and closed curves.

The inspector GUI dynamically generates the list of waypoints from the child objects of the path and provides a context menu for appending and prepending nodes, as well as clearing the path entirely.

Lastly, here's a video of the path being edited: