Carrier pidgeon newGRF

[tasertubby]

This last week has been my first time trying anything in nml so I don't understand everything perfectly yet.
I've been trying to make a newGRF that adds carrier pigeons to the game, but have stumbled upon an issue. I currently have a pigeon working as a custom airplane, but I don't want it to be purchased at just any airport. So I looked into making a custom airport, but found out you can't really do that and can only make reskins.

So my question is: How could i best go about making a pidgeon fancier or something of the sorts?

[odisseus]

I think your best option is coding the pigeon as a road vehicle. You can also make a custom road type which looks like a park or some other natural terrain, and code it so that vehicles other than the pigeon are unable to use it.

[Quast65]

Why not code it as a helicopter?

That way it doesnt use the runways and you can send it to oilrigs and also the small heliports (that you can then maybe make a special re-skin for, like there is one for Zeppelins if I recall correctly).

Basically its the same thing with the waterplanes. There is a special waterairport, but normal planes can still land on that.
That looks silly, so its up to the player to make sure normal planes dont land there (and that waterplanes dont land at land-based airports).

[T22112]

Why not code it as a helicopter?

That way it doesnt use the runways and you can send it to oilrigs and also the small heliports (that you can then maybe make a special re-skin for, like there is one for Zeppelins if I recall correctly).

Basically its the same thing with the waterplanes. There is a special waterairport, but normal planes can still land on that.
That looks silly, so its up to the player to make sure normal planes dont land there (and that waterplanes dont land at land-based airports).

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You are right, but i remember someone did the heliport on an oil rig already, but I don't remember exactly the mod name. I want the Zeppeline too