is_available_travelling

The comment above it in the file

If you update one of the available triggers, update all of them. It's a lot better for performance to not have scripted triggers within scripted triggers when they're checked as often as these ones are.

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.

is_available_travelling = {
	is_available_quick = {
		alive = yes
		in_army = no
		imprisoned = no
		incapable = no
		travel = yes
	}
	has_contagious_deadly_disease_trigger = no
	has_none_of_variables = {
		name = is_in_task_contract_event_chain
		name = gone_adventuring
		name = merchant_var
	}
}