A simple plugin that allows calling methods prefixed with __EDITOR__FNC_ in a tool script from the editor.
A menu will show up for the selected node/resource if it contains prefixed methods. Selecting an entry will cause the method to be called.
Additionally, a tool script can expose the method __EDITOR_OUT__that must return a string. The method will be called every frame, and the output will be shown in a label in the editor, useful for tool scripts that can change state.
Example:
tool
extends Node
var value: int = 0
func __EDITOR_FNC__increment() -> void:
value += 1
func __EDITOR_OUT__() -> String:
return str(value)