AI ideas

[reubene]

Here's some note for my thoughts on the AI implementation, I think this is technically feasible any comments would be appreciated

AI script should run after others but before first turn.

Player 0 will use barbarians.lua

Other players can be set or will use default AI script default_ai.lua

Executed in a special context the ai object will be specially bound and unique for that ai

Within this file you can access any of the standard lua functions. The game has not started at this point but initial setup is otherwise complete.

The file should register for the events this ai is interested in any event not registered will be ignored and result in no action, the exception is events that require a response such as audience requested if the ai doesn't handle these they will be answered with a negative. The barbarian ai is an example of ignoring these events... if you ignore diplomacy events you will end up at war with everyone.

Events:
Init - called shortly after this script if load game this is supplied with any ai state data that this script store on save.

Save - called when the user triggers a save the return of this method is treated as a binary blob in the save file and returned if the game is loaded via init

Turn - called at the beginning of each turn after city production you can decide ai strategy and issue orders to units here,

Units Orders Needed - called once for each unit that still needs orders if no orders are issued to the unit it will do nothing this turn

Foreign Unit Encountered - called when a foreign unit moves into visual range, can be a good place to initiate diplomacy especially if you encounter a unit from a new player or a player you've not seen in a while. This event is issued first to the player or players who's units did not move and then to the moving player

City Event X
A set of events fired in the preflight process of the turn if certain issues happen gives the AI a chance to handle these

• Civil Disorder
• We love the king
• Population increase
• Population decrease
• Construction complete
• Construction invalid (Wonder race lost, building already built, unit obsolete, etc...)
• Research Complete, this is a city Event since science is generated by cities

End Of Turn - called after all other events just before turn passes to the next player, good place to check production orders etc..

[axx0]

Seems you got this figured out more or less. I've been looking for AI mechanics, some of it can be found on civfanatics, e.g. here, stuff from that thread that could be useful:

Expansionist civs expand more rapidly than neutral ones which expand more rapidly than the perfectionist ones. This is useful info when you are trying to decide which rival to conquer first.

Civilized and Perfectionist Civs are the best trading partners. Perfectionists make larger cities by not trying to expand all the time and Civilized ones pursue civil techs and civil improvements which facilitate larger cities.

Rational civs are easier to make peace (or ally) with. Aggressive ones often want something just to talk to you. I am not sure how else this trait comes into play.

Aggressive Leaders are more likely to lean toward war or demand high payments for peace.
Rational Leaders are more likely to offer peace and might only be bluffing when asking for payment.

As for mechanics of player's reputation, how it deteriorates, how it can be increased and what it actually affects AI-wise can be found here.