adventurer_potential_destination_distance_check

adventurer_potential_destination_distance_check = {
	#This is made to be used inside set_adventure_location_effect - it relies on the scope it is being run in being the adventurer
	#Also expects $REGION$
	any_county_in_region = {
		region = $REGION$
		trigger_if = {
			limit = {
				prev.adventure_inspiration_average_skill_value >= high_inspiration_skill
			}
			NOT = {
				prev.location = {
					geographical_region = $REGION$
				}
			} #Highly skilled adventurers can travel anywhere - and will not pick the region they are already in
		}
		trigger_else_if = {
			limit = {
				prev.adventure_inspiration_average_skill_value >= medium_inspiration_skill
			}
			squared_distance = {
				target = prev.location
				value <= medium_adventure_max_length
			}
		}
		trigger_else = {
			#low_inspiration_skill
			squared_distance = {
				target = prev.location
				value < short_adventure_max_length
			}
		}
	}
}

As written in game/common/scripted_triggers/00_activity_triggers.txt.