adv_data_city_impr_calc() function header refers to ai/aicity.c
adv_data_city_impr_calc() function header refers to very old name of ai/aicity.c. It's ai/default/daicity.c in latest branches, ai/default/aicity.c in a bit older ones.
adv_data_city_impr_calc() function header refers to very old name of ai/aicity.c. It's ai/default/daicity.c in latest branches, ai/default/aicity.c in a bit older ones.