How do you manage concurrency in Godot ?

ecstaticcoder

I'm considering using Godot instead of Unreal Engine for my next project.

In SkookumScript, the concurrency is managed using the sync and race commands

sync
  [
  _do_this
  _do_that
  ]
// Runs after both _do_this and _do_that complete
_do_next

race
  [
  _do_this
  _do_that
  ]
// Runs after either _do_this or _do_that completes
_do_next

In the past I used state machines to manage this kind of activity synchronization, but when your entity main activities trigger several sub-activities, which also require several sub-activities etc, you may end up managing dozens of sub-states.

While being able to use concurrent routines which simply calls other concurrent routines leads to much simple and concise code, so I would like to know if there is an easy way to achieve the same result in one of Godot scripting languages ?