int city_culture(const struct city *pcity)
int player_culture(const struct player *plr)
int city_history_gain(const struct city *pcity)
int nation_history_gain(const struct player *pplayer)
struct unit struct city struct unit struct tile struct extra_type const struct act_prob *act_probs int actor_unit_id struct unit struct unit int const struct action *paction struct unit struct city * pcity