assign_random_nickname_effect

assign_random_nickname_effect = {
	save_scope_as = nickname_root_scope
	if = {
		limit = {
			is_adult = yes
			has_any_nickname = no
			NOT = { government_has_flag = government_is_mercenary }
			NOT = { has_game_rule = random_nickname_frequency_none }
		}
		random_list = {
			100 = {
				trigger = {
					exists = scope:toggle_null_result
				}
				# To make rare nicknames even rarer
			}
			100 = {
				trigger = {
					is_male = yes
					has_trait = stubborn
					has_trait = impatient
					NOR = {
						prestige_level >= 3
						portrait_shared_clothing_contents_trigger = { # They have a chance to be bald normally; it's not weird or tease-worthy
							CULTURE_SCOPE = culture
							CULTURE_FLAG = african
						}
						is_bald_trigger = yes
						exists = scope:had_nick_the_actually_bald
					}
				}
				modifier = {
					prestige_level < 2
					factor = 2
				}
				give_nickname = nick_the_bald_ironic
				# Flag this as having been spat out already, in case we're applying several nicknames in quick succession.
				flag_random_nickname_as_taken_in_batch_effect = { NICK = nick_the_bald_ironic }
				trigger_event = lifestyle_nicknames.1000
			}
			10 = {
				trigger = {
					is_male = yes
					age >= 30
					stress >= 100
					NOR = {
						portrait_shared_clothing_contents_trigger = { # They have a chance to be bald normally; it's not weird or tease-worthy
							CULTURE_SCOPE = culture
							CULTURE_FLAG = african
						}
						is_bald_trigger = yes
						exists = scope:had_nick_the_actually_bald
					}
				}
				modifier = {
					add = age
				}
				give_nickname = nick_the_actually_bald
				# Flag this as having been spat out already, in case we're applying several nicknames in quick succession.
				flag_random_nickname_as_taken_in_batch_effect = { NICK = nick_the_actually_bald }
				trigger_event = lifestyle_nicknames.1000
			}
			100 = {
				trigger = {
					NOR = {
						has_trait = crusader_king
						mpo_has_gok_mongol_empire_trigger = yes
					}
					has_personality_extroverted_trigger = yes
					NOT = {
						any_realm_county = {
							culture = scope:nickname_root_scope.culture
						}
					}
					NOT = {
						primary_title ?= {
							any_past_holder = {
								has_nickname = nick_the_stranger
							}
						}
					}
					is_landed = yes
					NOT = { exists = scope:had_nick_the_stranger }
				}
				modifier = {
					NOT = {
						any_realm_county = {
							culture = {
								cultural_acceptance = { target = scope:nickname_root_scope.culture value >= 40 }
							}
						}
					}
					factor = 2
				}
				give_nickname = nick_the_stranger
				# Flag this as having been spat out already, in case we're applying several nicknames in quick succession.
				flag_random_nickname_as_taken_in_batch_effect = { NICK = nick_the_stranger }
				trigger_event = lifestyle_nicknames.1000
			}
			100 = {
				trigger = {
					is_playable_character = yes
					NOR = {
						any_sub_realm_county = {
							faith = scope:nickname_root_scope.faith
						}
						AND = {
							top_liege != this
							faith = liege.faith
						}
						government_has_flag = government_is_theocracy
						government_has_flag = government_is_landless_adventurer
					}
					NOT = { exists = scope:had_nick_the_faith }
				}
				modifier = {
					has_trait = zealous
					factor = 2
				}
				give_nickname = nick_the_faith

As written in game/common/scripted_effects/00_nickname_effects.txt.