The tricky part is that terraforming land tiles of a nearby ocean base is very hard operation for the AI, unless it owns a base on that same continent. Sadly, projecting colonizing sea=> land seems really hard.
Hey, I just share my observations. You decide what to do with this.
I played with War/Research/Build/Expand faction priorities (what I think you refer to as AI_wealth, AI_growth and AI_power - I never dug up the code so I don't know how they are called), and in my experience AI can be 'taught' (encouraged, more likely) to go sea and be pretty efficient at it. Sea terraforming is very primitive, and thus easy to handle. You always build a kelp farm, and then you either build a mine or a harness. That's it. The kelp also spreads, making this even easier. I saw some very well terraformed AI bases. Food is plentiful, and the energy output is nothing to sneer at.
Thus these facilities might - might - be useful to an AI, somewhere mid-game, maybe in the 2200s.
Of course, the AI then kills itself with its Efficiency settings. Actually, I think it's one of the worst AI banes, right there with POLICE and SUPPORT. They are so bad at managing energy that I gave up and gave all AI a bonus of ++++EFFIC when playing with them. That, and a free Clean Reactor ability.
This could actually help the AI as well for pop-booming.
AI already prioritizes food far, far too much. It ends up with bloated bases full of drones it can't manage, sitting on a lot of farms and not producing anything of value.
It would be nice if it could be taught to evaluate resourses more rationally. I think your patch does this already... somewhat. A good indicator would be to place a borehole in the base vicinity and see how soon the AI would switch to it. It would be a better decision than most other tiles 90% of the time, unless the base is size 1 and needs to grow.
I have heard the AI prioritizes minerals mid-game and energy late-game, but I never get to see it. Then again, most of my games are won before 2250. Even with tech stagnation on and crawlers off, Transcendence can be achieved by 2300 without trying too hard.
(Miriam for builder? I have not seen that one.)
She builds a lot, I think, when she isn't at war. The latest PBEM we played with your patch, she seemed to neglect an army in favor of stuff like Energy Banks. With not a lot of energy to go around, too.
Maybe it was the jungles that were affecting her actions, though.
Yup. It seems that you can assign similar priorities to two factions, and one would still fare better than the other. In fact, I can try and dissuade Yang from expansion, and he still fares better than a highly encouraged Morgan!
Maybe it's the 'personalities' tha affect the outcome, or something else that is hard-coded.