How to make new building conditional on NOT terrain?

[Salmo]

I have a new building (a water well) that I want to make available in a city production list but only if the city is NOT built on a river OR does not have a river available within it's production zone AND is not on the coast. How can this be done?

 

[UncivilizedGuy]

I have a new building (a water well) that I want to make available in a city production list but only if the city is NOT built on a river OR does not have a river available within it's production zone AND is not on the coast. How can this be done?

I don't believe there is an XML command that will allow you to do this. What I would do is make the Well mutually exclusive to the Watermill OR create a free building that requires a river in the city center that is mutually exclusive to the well. Just don't give the free building any benefits.

 

[gyogen2]

The only way I know to currently do all that is with an edit to the production lua to check for it. If you really want to have all those parameters, I would be glad to try to help you with the lua edit.

 

[gyogen2]

Just to see I messed around with the production panel code, and found a way to do it through lua. I have it set so a given building cannot be built if the city tiles have either a river or water, though more conditions could be applied.

If this is something you think you could use let me know.

 

[UncivilizedGuy]

What I would like is to have resources as a prerequisite for constructing buildings.

 

[gyogen2]

I don't know if it will be easier to do when sdk releases, but for right now it could be done by creating a new table - BuildingResourceRequired and adding whatever building you wanted to it, then in the productionpanel, add in a check much like it uses for terrainfeature etc..

 

[Lord Yanaek]

The only way I know to currently do all that is with an edit to the production lua to check for it. If you really want to have all those parameters, I would be glad to try to help you with the lua edit.

Be careful with adding checks on the UI part of the code, as the AI could totally ignore it.
gyogen2, did you test this in-game to see whether the AI would still build it? It would be great if we can just code requirements in Lua but for Civ5 it required custom events modded into the dll before we could do this.

What I would like is to have resources as a prerequisite for constructing buildings.

You can check for adjacent resources but not resources in city radius like Forge or Stoneworks in civ5

The hidden dummy building was a tried and trusted way of modding otherwise impossible effects in Civ5 and i expect it to come back to Civ6.

 

[UncivilizedGuy]

Be careful with adding checks on the UI part of the code, as the AI could totally ignore it.
gyogen2, did you test this in-game to see whether the AI would still build it? It would be great if we can just code requirements in Lua but for Civ5 it required custom events modded into the dll before we could do this.


You can check for adjacent resources but not resources in city radius like Forge or Stoneworks in civ5

The hidden dummy building was a tried and trusted way of modding otherwise impossible effects in Civ5 and i expect it to come back to Civ6.

Adjacent resources only works for Wonders right now not buildings. Firaxis put a note in there stating this. Not everything in the buildings table works for buildings.

 

[gyogen2]

I am just experimenting w/ code to see what works right now, pretty much wasting time until tools are released. I had a separate script that worked, but unfortunately it was a gamescript, so won't load in saved game.

Hopefully once sdk hits, this will all become better.

 

[Hakkie]

I haven't really tested this out yet, but maybe you could have a look at the <Inverse> command, like this one for example (Improvements.xml):

  <Row>
   <RequirementId>REQUIRES_PLOT_IS_NOT_OWNER_CAPITAL_CONTINENT</RequirementId>
   <RequirementType>REQUIREMENT_PLOT_IS_OWNER_CAPITAL_CONTINENT</RequirementType>
   <Inverse>true</Inverse>
  </Row>

 

[Elucidus]

I was thinking the same, Hakkie

 

[Lord Yanaek]

I haven't really tested this out yet, but maybe you could have a look at the <Inverse> command, like this one for example (Improvements.xml):

  <Row>
   <RequirementId>REQUIRES_PLOT_IS_NOT_OWNER_CAPITAL_CONTINENT</RequirementId>
   <RequirementType>REQUIREMENT_PLOT_IS_OWNER_CAPITAL_CONTINENT</RequirementType>
   <Inverse>true</Inverse>
  </Row>

I don't think buildings use the Requirements table. It looks like they still uses old fixed requirements rather than the new more flexible Requirements and RequirementSets tables.

 

[NycholusV]

I don't believe there is an XML command that will allow you to do this. What I would do is make the Well mutually exclusive to the Watermill OR create a free building that requires a river in the city center that is mutually exclusive to the well. Just don't give the free building any benefits.

This is spot on. Use 'MODIFIER_SINGLE_CITY_GRANT_BUILDING_IN_CITY_IGNORE' to spawn a free building that is mutually exclusive with the well. Use it on the City Centre (it seems that this modifier must be applied to Districts, not Cities) with the terrain specifications as the requirement's modifier.