guidebook/docs/custom-levels/publishing.md

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# Publishing Levels
Sketchy Maze is designed to be _very_ friendly to mods and custom user content,
and the **Publish Level** feature is an important part towards that goal.
When you have created your own level and you have added some
[custom doodads](../custom-doodads/index.md) to it, **publishing** your level
means that your custom doodads will _attach_ directly into the level file for
easy sharing with others: another player can download _just_ your `.level` file
and it will "just play" in their copy of the game, and they don't need to track
down all the same custom doodads you've used.
> <em>**Notice:** This feature is only available for full (registered) versions of the
> game. The free (shareware) version of </em>Sketchy Maze<em> supports custom levels
> and doodads, but you would need to copy the custom `.doodad` files to each
> computer your level will play on, otherwise the game won't be able to find
> them! Check [the website](https://www.sketchymaze.com/) for details how to acquire
> a full version of the game.</em>
## Publish a Level
When you are ready to share your level, click on the "File->Publish level" menu
option in the Level Editor.
![Publish Window screenshot](../images/publish.png)
The Publish window will show the list of named doodads which currently exist in
your level, designating which doodads are _custom_ and which were built-in with
the game (the built-in doodads are shown in blue text plus an asterisk* symbol).
Make sure the box to "Attach custom doodads when I save the level" is enabled,
and click on the "Save Level Now" button. The custom doodads will be embedded
into the level file on each save while this box is enabled.
Optionally, you can choose to "Attach built-in doodads too" -- this will attach
copies of the built-in doodads to your level, too, which will override the game's
_actual_ built-in doodads. Doing this comes with some pros and cons:
* **Pro:** if future releases of _Sketchy Maze_ change the behavior or appearance
of a built-in doodad, your custom level will still use the older version that
it was published with.
* **Con:** if future updates to a built-in doodad have improved its appearance,
added functionality or fixed bugs, the published level will not benefit from
that update because it brought its own (older) version of the built-in doodad.
## Managing Attached Files
You can view and manage the files attached to a level by clicking on the
"Level -> Attached files" menu in the level editor:
![Attached Files screenshot](../images/attachments.png)
This window lists the doodads, wallpapers or other custom assets which have been
attached directly _into_ the level file. A published level will have all of its
custom doodads attached (and possibly copies of the built-in doodads it used),
as well as the [custom wallpaper](custom-wallpaper.md) image (if any).
### Removing Attached Doodads
Attached doodads may be removed from the level **if** doing so will not break
the level. Generally, this means: if an instance of that doodad is still in
use _somewhere_ on your level, and removing the doodad from the Attached Files
would cause the level to be unable to locate that doodad, then removing it from
your level will not be permitted.
Doodads can be removed from the Attached Files list **if:**
* They are built-in doodads; removing them will cause the level to go back to
using the built-in copies of these doodads instead.
* They are custom doodads **and** you have them in your [profile directory](../profile-directory.md):
the level will start using the named doodad from your profile directory (similarly
to how you designed the level in the first place, before publishing!)
* The doodad is no longer used in your level, e.g. you have removed every instance
of the doodad from your level geometry.
In case you can't locate the doodad to remove it from your level, the
[`doodad` tool](../doodad-tool.md) can remove doodads from your level
by name or ID:
```bash
# Show details of all the actors in this level;
# look for the Actors section of the output.
$ doodad show --actors example.level
...
Actors:
Level contains 16 actors
List of Actors:
- Name: key-blue.doodad
UUID: 15f09c12-5d00-4654-9725-8e1ba10004d7
At: 362,1348
- Name: trapdoor-down.doodad
UUID: 24f85095-d13c-42e2-9156-01cb4b84723c
At: 897,398
- Name: crumbly-floor.doodad
UUID: 9ba40fc2-acc7-4e6d-821a-f0248c2ad7e1
At: 1243,1742
...
# Remove all instances of a doodad by name
$ doodad edit-level --remove-actor crumbly-floor.doodad example.level
```
### Removing Attached Wallpapers
Similarly: if the level is using a custom wallpaper image, you can not remove
the wallpaper from the Attached Files list while the level is still using it.
To remove the wallpaper image, you need to:
1. Go into the Page Settings (Level->Page settings menu) and select one of the
built-in wallpaper images, such as "Notebook."
2. Then you can remove the custom wallpaper image from the Attached Files window.