can_challenge_rival_to_single_combat_trigger

The comment above it in the file

We use a trigger so this can be enabled elsewhere easily.

What it checks

• the game's own tooltip text · ◦ our reading of the script line · code the script where neither exists

“They” is whatever it runs on (the scope it is called in). The scripted triggers and effects it calls link to their own pages; $PARAMETERS$ stay as written: each call fills them in.

can_challenge_rival_to_single_combat_trigger = {
	# Enabling perks.
	OR = {
		has_perk = stalwart_leader_perk
		culture = { has_cultural_parameter = can_duel_rivals }
		government_has_flag = government_is_nomadic
		government_has_flag = government_is_japan_feudal
	}
}