Need help with procedural generation script 2D

[KingDoogan]

So i was wondering if i could use this script to also generate NPC's & objects etc.

Followed this tut: https://www.youtube.com/watch?v=m6mu4uPGrMk

Script:
https://anotepad.com/note/read/bs9q53

Where do i get started? found a LOT of world generation but not much to do with object placement.

[󠁳⁧⁧󠁳⁧⁧󠁳󠁳]

Read this: https://docs.godotengine.org/en/3.1/tutorials/content/procedural_geometry.html