[Bug]: Noise control setting doesn't describe airport number limit well

[EratoNysiad]

Version of OpenTTD

13.0, Windows 10

Expected result

When this setting is set to "Off", I expect to be able to place an unlimited amount of airports

Actual result

I am limited to only 2 airports, regardless of what this is set to

Steps to reproduce

1. Set the "Allow town controlled noise level for airports" setting to "Off"
2. Attempt to place 3 airports near a single town.

[James103]

Workaround:

1. Install the NewGRF "OpenGFX+ Airports" with the disable airport noise limits parameter enabled.
2. Turn on "Allow town controlled noise level for airports"
3. You should now be able to build many more airports near a single town.

[PikkaBird]

With the noise limit setting off, the game reverts to the default TTD behaviour of allowing only two airports per town.

There are two ways to allow building unlimited airports:

1. turn noise limits off, and set "Local authority attitude" to "Permissive".
2. turn noise limits on, and use a GRF that sets airport noise to 0, as James103 mentioned.

[EratoNysiad]

The "Local authority attitude" setting has no effect on the amount of airports when the noise setting is off, but with the setting on it works brilliantly, thanks.

Correction; that is what it should do, and what it does in JGR
While the setting description says "With this setting disabled, there can be two airports in each town," this is not actually the case in 13.0

[PikkaBird]

The way it functions in 13.0 is correct according to the PR which added the functionality (#9833). It's interesting that it works differently in JGRPP, but doesn't necessarily make either implementation "wrong".

The setting description is out-of-date and doesn't reflect the changes in #9833. That could definitely be considered a bug.

[2TallTyler]

I don't quite understand this report. Which setting helptext isn't descriptive enough?

I changed it, so I'll fix it, I just need to know what needs updating. 😃

[PikkaBird]

The "bug" in the description text for 'Allow town controlled noise level for airports' is that "With this setting disabled, there can be two airports in each town" is no longer true if 'local authority attitude' is set to 'permissive'.

This functionality being affected by two different settings, as well as potentially newgrf, is a bit of a mess. :) But the real confusion that resulted in this bug report stems from JGRPP implementing the interaction between the two settings differently from vanilla.