Here's my swamp terrain with waterlillies, based on the brown swamp by LBPB for the Great Lost Civlizations MOD, and now also featured in The Ancient Mediterranean MOD.
I will replace the jungle with this one
It looks good.
This is a nice new graphic Would it be possible to add more jungle away from the rivers & have the swamp only occur on or near the river?
Simple enough to do:
Change the Flood Plains to The Jungle and make the Flood Plains Rivers Looks like this Cool Swamp graphic, This would make a great Effect, also frees up a Multi-Effect Terrain Incase you want some other effect...
Many possible ways to muck around with the graphics to get what you want.
What I was implying is that You can get around all the terrain restrictions by thinking outside the box,
Realistically Flood plains doesn't really need to have a seperate one for desert (unless there are other parameters that I dont know about (which is highly possible)) Desert is desert and if it has a river it has grass on the river banks, so the desert terrain is sorta a spare one:
You should think of the terrains as:
TerrainB-foliageA (forest) -
TerrainB-Highly elevated (mountain)
TerrainB-4-river adjusted (flood plains)
Then re-arrange what goes where so you get the right terrain adjustemenst and changes...
Uhhh... what? How is this terrain scheme you wrote down related to civ?
I think flood plains are designed to be nile-like. They overflood twice per year and leave very fertile soil. You are right, it has nothing to do with the desert, though.