set_armor_artifact_type_effect

set_armor_artifact_type_effect = {
	save_temporary_scope_value_as = {
		name = allow_no_type_option
		value = $NO_TYPE$
	}
	# Historically many of these types of armor were used in some combination, but to give a clearer portrayal to the player we have to simplify it a bit
	hidden_effect = {
		$BASE_SCOPE$ = {
			#The type has been decided in events, when the character got inspired, or now. Let's save it! (might still leave it up to the sponsor if allow_no_type_option = yes!)
			if = {
				limit = {
					NOT = { exists = var:artifact_armor_type }
				}
				random_list = { #What do they want to forge?
					50 = { #Fairly common everywhere
						artifact_armor_type_mail_modifier = yes
						set_variable = {
							name = artifact_armor_type
							value = flag:armor_type_mail
						}
					}
					1 = { #Expensive
						artifact_armor_type_plate_modifier = yes
						set_variable = {
							name = artifact_armor_type
							value = flag:armor_type_plate
						}
						modifier = {
							factor = 0
							culture = {
								NOT = { has_innovation = innovation_plate_armor }
							}
						}
					}
					50 = { #Fairly common everywhere
						artifact_armor_type_scale_modifier = yes
						set_variable = {
							name = artifact_armor_type
							value = flag:armor_type_scale
						}
					}
					5 = { #Expensive
						artifact_armor_type_lamellar_modifier = yes
						set_variable = {
							name = artifact_armor_type
							value = flag:armor_type_lamellar
						}
					}
					5 = {
						artifact_armor_type_laminar_modifier = yes
						set_variable = {
							name = artifact_armor_type
							value = flag:armor_type_laminar
						}
					}
					0 = {
						artifact_armor_type_brigandine_modifier = yes
						set_variable = {
							name = artifact_armor_type
							value = flag:armor_type_brigandine
						}
					}
					50 = { #They don't care and you can decide!
						trigger = {
							scope:allow_no_type_option = yes
						}
						modifier = {
							add = 30
							has_personality_submissive_trigger = yes
						}
						modifier = {
							add = 9916 # ~1% chance of being predetermined if comissioning from a local artisan.
							has_character_flag = local_artisan
						}
						ai_value_modifier = {
							ai_boldness = -0.25
							ai_energy = -0.25
						}
					}
				}
			}
		}
	}
}

As written in game/common/scripted_effects/00_ep1_artifact_creation_effects.txt.