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Sick of AI's founding cities 1 tile inland?
There's a bug - or some very bad logic, in the city placement code, which results in coast (ie those 1-0-2) tiles being considered bad tiles - in the same class as tundra. In short, the AI is ignorant of Lighthouses - it literally doesn't know about the lighthouse when it comes to founding cities. There's a bit of a hack in the code which gives a MASSIVE point-boost to coastal cities, the problem is the check for "excessive bad tiles" overrides that - which results in cities which REALLY need to be on the coast, getting founded 1 inland. Oops.
So I fixed that with a bit of lighthouse awareness, coast is now only considered evil if the city itself isn't coastal.
Additionally I added some seafood awareness. When founding cities, it's easy to place cities in such a way that seafood is permanently blocked (and the AI delights in doing this). So what I did was add a pretty hefty point boost for seafood, if there is seafood offshore, the AI will try to found a city which uses that seafood.
Finally I tweaked the way it deals with founding cities on top of resources. The AI feels VERY strongly about founding cities on top of resources, in short the point value of a city on top of a resource is cut by 75%. I've relaxed that restriction a bit - now it's such that founding on top of a resource is considered about the same as losing a resource - now it might found on top of a resource if doing so will bring in an additional seafood.
As a side effect of these changes the guy who draws the blue circles for settlers is no longer high as a kite (the player-hints system uses the AI code). I'm not saying to trust the blue circles now, but they will be a lot closer to what I'd do.
Note that the compiled GameCoreDLL includes my bugfix since I can think of no conceivable reason why you'd not want those bugs fixed.
Files:
AICoastCities_CvGameCoreDLL
Place the DLL in your CustomAssets folder or place it in it's own mod folder. This mod will not cause save game incompatability.
CvPlayerAI
For the curious or for those making compilations, the CvPlayerAI.cpp file. Changes are restricted to the function int CvPlayerAI::AI_foundValue.
I'd love any feedback on this. Both if you find it improved, and (oh no!) if you find it worse.
There's a bug - or some very bad logic, in the city placement code, which results in coast (ie those 1-0-2) tiles being considered bad tiles - in the same class as tundra. In short, the AI is ignorant of Lighthouses - it literally doesn't know about the lighthouse when it comes to founding cities. There's a bit of a hack in the code which gives a MASSIVE point-boost to coastal cities, the problem is the check for "excessive bad tiles" overrides that - which results in cities which REALLY need to be on the coast, getting founded 1 inland. Oops.
So I fixed that with a bit of lighthouse awareness, coast is now only considered evil if the city itself isn't coastal.
Additionally I added some seafood awareness. When founding cities, it's easy to place cities in such a way that seafood is permanently blocked (and the AI delights in doing this). So what I did was add a pretty hefty point boost for seafood, if there is seafood offshore, the AI will try to found a city which uses that seafood.
Finally I tweaked the way it deals with founding cities on top of resources. The AI feels VERY strongly about founding cities on top of resources, in short the point value of a city on top of a resource is cut by 75%. I've relaxed that restriction a bit - now it's such that founding on top of a resource is considered about the same as losing a resource - now it might found on top of a resource if doing so will bring in an additional seafood.
As a side effect of these changes the guy who draws the blue circles for settlers is no longer high as a kite (the player-hints system uses the AI code). I'm not saying to trust the blue circles now, but they will be a lot closer to what I'd do.
Note that the compiled GameCoreDLL includes my bugfix since I can think of no conceivable reason why you'd not want those bugs fixed.
Files:
AICoastCities_CvGameCoreDLL
Place the DLL in your CustomAssets folder or place it in it's own mod folder. This mod will not cause save game incompatability.
CvPlayerAI
For the curious or for those making compilations, the CvPlayerAI.cpp file. Changes are restricted to the function int CvPlayerAI::AI_foundValue.
I'd love any feedback on this. Both if you find it improved, and (oh no!) if you find it worse.
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