Connecting FasterAlongRiver to Tech

[Anondod]

I'd like to activate the FasterAlongRiver trait for any civilization that researches a particular tech. Is that possible?

 

[ls612]

I'd like to activate the FasterAlongRiver trait for any civilization that researches a particular tech. Is that possible?

In theory you could add a new column to the Techs table in the DLL and hook that into CvUnitMovement::GetCostsForMove(...). That's how I'd do it anyways. There may be a way to do it with lua, I'm not certain.

 

[Anondod]

I was thinking you could do something like "when a civ has researched this tech, set FasterAlongRiver to true", but I've only started looking at lua so I don't know if that is something you can do or not.

 

[ls612]

I was thinking you could do something like "when a civ has researched this tech, set FasterAlongRiver to true", but I've only started looking at lua so I don't know if that is something you can do or not.

In the DLL it is set like this

void CvUnitMovement::GetCostsForMove(const CvUnit* pUnit, const CvPlot* pFromPlot, const CvPlot* pToPlot, int iBaseMoves, int& iRegularCost, int& iRouteCost, int& iRouteFlatCost)
{
	CvPlayerAI& kPlayer = GET_PLAYER(pUnit->getOwner());
	CvPlayerTraits* pTraits = kPlayer.GetPlayerTraits();
	bool bFasterAlongRiver = pTraits->IsFasterAlongRiver();

You could add a column to the techs and then change it to something like this:

bool bFasterAlongRiver = (pTraits->IsFasterAlongRiver() || kPlayer.GetPlayerTechs()->IsFasterAlongRiver());

 

[Anondod]

That's a bit beyond what I can understand and make use of with at my current level. But I'll keep this filed away until I know more of what I'm doing. Thank you!

 

[Pazyryk]

Unfortunately, there's no way in Lua to turn the existing civ traits on and off. You need to mod the dll (C++) to do that. However, you can implement a lot of "trait-like" effects with Lua, which can be linked to techs, policies or almost anything. But that takes some learning too.

 

[Anondod]

Would it be possible to give the trait to all civilizations but make it inactive until they research a particular tech?