Follow-up Comment #2, bug #21640 (project freeciv): I found the cause, and it is not a bug, but a bad design, imho.
It is related to this code inside aihand.c /* Put the remaining to tax or science. */ if (!adv_wants_science(pplayer) || dai_on_war_footing(ait, pplayer)) { rates[AI_RATE_TAX] = MIN(maxrate, rates[AI_RATE_TAX] + RATE_REMAINS(rates)); rates[AI_RATE_LUX] = MIN(maxrate, rates[AI_RATE_LUX] + RATE_REMAINS(rates)); rates[AI_RATE_SCI] = MIN(maxrate, rates[AI_RATE_SCI] + RATE_REMAINS(rates)); log_base(LOGLEVEL_TAX, "%s [res] crazy " "(Sci/Lux/Tax)>=%d/%d/%d", player_name(pplayer), rates[AI_RATE_SCI], rates[AI_RATE_LUX], rates[AI_RATE_TAX]); } else { rates[AI_RATE_SCI] = MIN(maxrate, rates[AI_RATE_SCI] + RATE_REMAINS(rates)); rates[AI_RATE_TAX] = MIN(maxrate, rates[AI_RATE_TAX] + RATE_REMAINS(rates)); rates[AI_RATE_LUX] = MIN(maxrate, rates[AI_RATE_LUX] + RATE_REMAINS(rates)); log_base(LOGLEVEL_TAX, "%s [res] sane " "(Sci/Lux/Tax)>=%d/%d/%d", player_name(pplayer), rates[AI_RATE_SCI], rates[AI_RATE_LUX], rates[AI_RATE_TAX]); It seems the ai set the taxes to be able to pay the upkeeps (techs and buildings), and the remaining taxes are send, in this order, to science, gold and luxury... (this is good to me) except if the ai is "on_war_footing", then the remaining taxes are send to gold (ok), luxury, and science. It seems the AI ends too often in this "on_war_footing" state, and they prefer luxury over science. It was hard to notice in versions previous to 2.5 because HARD or CHEATING AI levels overide the limits to taxes by governments, and the result was taxes set 100% to gold, instead of 60% to gold, and 40% to luxury. I'll upload my suggested solution to prioritize the remaining taxes this way: 1) if (!adv_wants_science(pplayer) then gold, luxury, science 2) if dai_on_war_footing(ait, pplayer) then gold, science, luxury I think this fix improves a lot the researching capabilities of the AI when taxes are limited. _______________________________________________________ Reply to this item at: <http://gna.org/bugs/?21640> _______________________________________________ Mensaje enviado vía/por Gna! http://gna.org/ _______________________________________________ Freeciv-dev mailing list Freeciv-dev@gna.org https://mail.gna.org/listinfo/freeciv-dev