Godot 4 set_cell without atlas_coords

system · December 22, 2022, 10:05am


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

I’m trying to migrate my game to Godot 4, but I have massive problems with procedurally generated tilemaps.

In Godot 3, set_cell was pretty straight forward. All you needed was the destination coords and the tileID. I named all my tiles like “grass”, “water” or “mountain”, so I worked a lot with find_tile_by_name to get the IDs.

In Godot 4, you need the atlas_coords on top. While tiles still can be named, there is no way to find right the atlas_coords, even if the atlas has only one “active” tile.

What is the best way to address single tiles if I don’t know the atlas coords?

system · December 25, 2022, 8:50am


	Reply From:	Rochambeau

Well, as a workaround, I split my tileset.png into single 16x16 images. So when importing them to the 16x16 tileset, the atlas coords are always 0,0.

Not very convenient, but it works.

system · February 20, 2023, 9:56pm


	Reply From:	Monkstar

I use single tiles, and for me the atlas coords are all (0,0). I can see that when I hover over them in the tileset with my mouse (the base tiles or alternative tiles). So I just use that. It works for me. But I’m also still figuring everything out.

system · February 21, 2023, 9:59am


	Reply From:	Rochambeau

I was given a tip to use custom data layer and it works for me.

github.com/godotengine/godot-proposals

Bring back find_tile_by_name in 4.x

opened 10:26AM - 04 Feb 23 UTC

closed 07:40AM - 08 Feb 23 UTC

Jeb187

archived topic:2d

### Describe the project you are working on A 2D top-down RPG with procedural…ly generated tilemap ### Describe the problem or limitation you are having in your project In 3.5, you could name single tiles and find them in the tileset by name. I had a dictionary with tiles and their properties (walkable, walk_speed, liquid, an so on) I could use for world generation. In 4.0, you can name an atlas, but then you still need the atlas coordinates to get a specific tile. Maintaining a dictionary with tile properties is a lot less comfortable, should the graphics of the tileset/spritesheet change. ### Describe the feature / enhancement and how it helps to overcome the problem or limitation Add the property "name" for base tiles and an acompaning function find_tile_by_name. ### Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams See documentation for [find_tile_by_name](https://docs.godotengine.org/de/stable/classes/class_tileset.html#class-tileset-method-find-tile-by-name), which returns a unique tile_id that can be used with $TileMap.set_cell. ### If this enhancement will not be used often, can it be worked around with a few lines of script? Right now, I have split up my spritesheet into single 16x16 sprites and added them to the tileset. So the atlas coordinates are always Vector2i.ZERO and i can address the source_id by name. But editing a spritesheet is a lot easier than editing single sprites. ### Is there a reason why this should be core and not an add-on in the asset library? It's a regression to 3.5.