MULTIPLAYER is defined in the main screen context.

[virtualghetto]

Game and System Information

• What version of the game are you running?
• 1.15.8
• If you're using a custom build, what compiler did you use, and what commit did you build at?
• 1.15.8 tag
• What OS are you running?
• linux

Describe the bug

When you start wesnoth, MULTIPLAYER is not defined in the context of the main screen.
If you click on Multiplayer -> local game and then click on Cancel to go back to the main screen, the MULTIPLAYER remains defined.

To Reproduce

Steps to reproduce the behavior:

Create a dummy campaign

#ifndef MULTIPLAYER
[campaign]
...
[/campaign]
#endif

This campaign will appear in the Campaigns list when you start wesnoth.
Enter Multiplayer and go back to the main screen with Cancel.
Click on Campaigns again, the dummy campaign will no longer be visible here.

Expected behavior

MULTIPLAYER is undefed when you go back to the main screen.
Or, it should be undefed when you click on Campaigns.

[doofus-01]

For what it's worth, it's been this way for a very long time.

[gfgtdf]

This is the expected behaviour since, quite some time. If you don't want your campaign to show up in single player you have to use type=mp in [campaign] , see https://wiki.wesnoth.org/CampaignWML

While we could in theory make a guarantee that MULTIPLAYER is not defined on title screen, i think its definitely not worth it since it would result more loading times and thus a worse player experience.

[soliton-]

Is this expected behaviour documented somewhere?

[gfgtdf]

Hmm not sure, idk where these macros are documented in the first place. I guess https://wiki.wesnoth.org/Preprocessorref is is there some other place ?

[soliton-]

I don't think there is another place.

[gfgtdf]

updated the page