Help with new building for Kingdom Builder

[direinsomniac]

Project: Kingdom Building (needs help)

I am trying to code a new building called a Levee.

This particular structure is supposed to be built next to a river or ocean.

I've looked at various other water-related buildings in the list, but not able to come up with the proper Expr-Req.


This is what I have:
tagis[HexFeature.WaterR?] | tagexpr[HexFeature.Water?] <> 0

 

[ShadowChemosh]

tagis[HexFeature.WaterR?] | tagexpr[HexFeature.Water?] <> 0

This not exactly formed right. Tagis and Tagexpr are two separate boolean functions that return either TRUE/FALSE. You could do this:

tagis[HexFeature.WaterR?] + tagexpr[HexFeature.Water?] <> 0

But sense you have a tagexpr function you should most likely combine that expression logic into it instead:

tagexpr[HexFeature.WaterR? | HexFeature.Water?] <> 0

You can only use | and & inside a expression not in between functions. If you wanted to use tagis[] functions you would do this:

tagis[HexFeature.WaterR?] + tagis[HexFeature.Water?] <> 0

 

[direinsomniac]

I'm still a bit of an amateur coder, what is the different between tagis and tagexpr?

And which would be better to use in this instance?

 

[direinsomniac]

Also, how would I be able to do a boolean for all the different types of coastlines?

 

[AndrewD2]

tagis just checks a single tag, tagexpr checks the whole expression