tiled.activeAsset returns null when providing a tmx file as argument #3530

tiled.activeAsset refers to the asset currently selected in Tiled, but when evaluating a script from the command-line, the Tiled editor actually does not get created, so there is also no active asset.

Instead, your script will need to handle the command-line parameter itself, using tiled.scriptArguments. For a command-line evaluated script to load a map, it currently will have to load the map using the appropriate format, tiled.mapFormat("tmx").read(fileName) in your case, or using tiled.mapFormatForFile in case various formats are possible.

I'll change the tag on this issue since I think the documentation could use some more information about evaluating scripts on the command-line.

It appears that map.layerDataFormat is an int (map is defined using map = tiled.mapFormat('tmx').read(mapPath);). The documentation seems to say it's a string, but if I change the value to an int (from 3 to 2) it seems to not change the map after if I save it using tiled.mapFormat('tmx').write(map, 'e.tmx');.

This is probably just me not reading docs but still.

The documentation seems to say it's a string

Where does it seem like that? map.layerDataFormat is documented to have one of a specific set of values, which can be accessed using TileMap.Base64 for example. These map to a C++ enum so the values are indeed actually ints.

Changing this property and re-saving the map is expected to change the format used to store the layer data.

Where does it seem like that?

https://www.mapeditor.org/docs/scripting/classes/TileMap.html#layerDataFormat

I solved it by searching the repo for CSV and found this line and it seems to convert correctly when set to 5, thank you for your help!

Also, I just noticed that when I open the new map in notepad, the tileset paths are relative, as in ../path/to/tileset.png, is it possible to disable that? It's not like that originally.

Where does it seem like that?

https://www.mapeditor.org/docs/scripting/classes/TileMap.html#layerDataFormat

I solved it by searching the repo for CSV and found this line and it seems to convert correctly when set to 5, thank you for your help!

You should not be using the numeric values directly! They can change, and they make your code harder to read. Use the values as intended, e.g. map.layerDataFormat = TileMap.CSV

Paths exported by Tiled's native formats are always relative when possible, this allows maps to be portable. Tiled only uses absolute paths when relative paths are impossible, such as if the assets are on different drives. If you need to force absolute paths, I think you'd have to implement a custom format.

Where does it seem like that?

https://www.mapeditor.org/docs/scripting/classes/TileMap.html#layerDataFormat I solved it by searching the repo for CSV and found this line and it seems to convert correctly when set to 5, thank you for your help!

You should not be using the numeric values directly! They can change, and they make your code harder to read. Use the values as intended, e.g. map.layerDataFormat = TileMap.CSV

Paths exported by Tiled's native formats are always relative when possible, this allows maps to be portable. Tiled only uses absolute paths when relative paths are impossible, such as if the assets are on different drives. If you need to force absolute paths, I think you'd have to implement a custom format.

Ah, thank you for your answer. I might just go through the xml manually to remove the paths.

Please don't mark this as completed yet, the documentation still needs to be updated (see bjorn's first reply).