How to set my autotile using set_cellv()?

[system]

	Attention	Topic was automatically imported from the old Question2Answer platform.
	Asked By	milddeva

I’m trying to generate a dungeon by using drunken walk method described here. Tl;dr for the method described there is: carve out the path from the wall. I tried to use set_cellv(position, -1) and set_cellv(position, 1) to do it, but when i do, the autotile does not updating itself. See the image below to see what i mean.

This is the autotile that i get when using set_cellv(position, 1):

The result i want:

It’s the same placeholder autotile i got from godot docs, but when i use set_cellv() the wall did not appear.

[system]

	Reply From:	hanke

You need to call update_bitmask_area to apply the autotile rules: TileMap — Godot Engine (stable) documentation in English

In code:

tilemap.update_bitmask_area(position)

[system]

	Reply From:	radome

A simple example

GitHub - ismailgamedev/Set-AutoTile-using-set_cellv