What are the placement rules for Oasis in world builder?

[iammaxhailme]

I"m trying to put some on some flat desert tiles, and some work and some don't. I thought it might have to do with proximity to other fresh water, or non-desert tiles, or hills, but I can't seem to find any logic... some tiles allow an oasis and some don't and I can't find the reason.

 

[AlannaT]

From Features.xml:
"<Row FeatureType="FEATURE_OASIS" Name="LOC_FEATURE_OASIS_NAME" NoAdjacentFeatures="true" NoCoast="true" AddsFreshWater="true" Appeal="+1" AntiquityPriority="2" NoRiver="true" Settlement="false"/>"
"<Row FeatureType="FEATURE_OASIS" TerrainType="TERRAIN_DESERT"/>"

This looks to me as if there are the following conditions to fulfill:

• Must be on desert
  
• No feature on adjacents tiles, which includes no other oasis, no floodplains etc.
• Not next to a river
• Not next to coast

Does this help?

 

[iammaxhailme]

Yes, thanks. I think there are more rules than that though. I experimented in world builder a bit more and my hypothesis is that (as you said) Oasis can't be on a tile with river, but it seems that it also can't be adjacent to another tile which has river either, even if the river is on the other side (Not 100% sure about this one, but it seems to be like that).

 

[cvb]

but it seems that it also can't be adjacent to another tile which has river either, even if the river is on the other side (Not 100% sure about this one, but it seems to be like that).

"even if the river is on the other side" means though this (entire) adjacent plot has already fresh water.

I would suspect, that plots, which are adjacent to (Plot:IsFreshWater & Plot:IsCoastalLand =) 'green on the settler lense'-plots, are not allowed to have FEATURE_OASIS - so an Oasis is surrounded completely by noWater tiles.

I also seem to remember having read that setting Features can cause issues, if adjacent Plot:IsNaturalWonder ...

Interested in what you find out.

.

 

[iammaxhailme]

It does allow an Oasis to be directly adjacent to lake.