reveler_lifestyle_rank_up_check_effect

reveler_lifestyle_rank_up_check_effect = {
	if = {
		limit = {
			NOT = { has_trait = lifestyle_reveler }
		}
		random = {
			chance = 15
			modifier = {
				add = -10
				rite = { trait_is_sin_rite = lifestyle_reveler }
			}
			modifier = {
				add = -10
				has_trait = temperate
			}
			modifier = {
				add = -10
				has_trait = inappetetic
			}
			modifier = {
				add = 10
				culture = { has_cultural_parameter = reveler_traits_more_valued }
			}
			modifier = {
				add = 5
				has_trait = gluttonous
			}
			modifier = {
				add = 5
				has_trait = drunkard
			}
			modifier = {
				add = 5
				has_trait = comfort_eater
			}
			modifier = {
				add = 15
				exists = var:reveler_lifestyle_progress
				var:reveler_lifestyle_progress >= reveler_rank_up_3_threshold
			}
			modifier = {
				add = 15
				exists = var:reveler_lifestyle_progress
				var:reveler_lifestyle_progress >= reveler_rank_up_2_threshold
			}
			modifier = {
				add = 15
				exists = var:reveler_lifestyle_progress
				var:reveler_lifestyle_progress >= reveler_rank_up_1_threshold
			}
			trigger_event = feast.0050
			show_as_tooltip = {
				add_trait = lifestyle_reveler
			}
		}
	}
	else = {
		if = {
			limit = {
				NOT = { has_trait = lifestyle_reveler }
				exists = var:reveler_lifestyle_progress
				var:reveler_lifestyle_progress >= reveler_rank_up_3_threshold
			}
			add_trait_xp = {
				trait = lifestyle_reveler
				value = 10
			}
		}
		else_if = {
			limit = {
				exists = var:reveler_lifestyle_progress
				var:reveler_lifestyle_progress >= reveler_rank_up_2_threshold
			}
			add_trait_xp = {
				trait = lifestyle_reveler
				value = 5
			}
		}
		else_if = {
			limit = {
				exists = var:reveler_lifestyle_progress
				var:reveler_lifestyle_progress >= reveler_rank_up_1_threshold
			}
			add_trait_xp = {
				trait = lifestyle_reveler
				value = 3
			}
		}
		else = {
			add_trait_xp = {
				trait = lifestyle_reveler
				value = 1
			}
		}
		set_variable = {
			name = reveler_lifestyle_progress
			value = 0
		}
	}
}

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