The pirate treasure: each player's own mound at their X, dug with a pickaxe; the drowned crew rise at night or when the chest comes up; the ship's compass, a spyglass, a cutlass and pirate gold; online too

scripts/world/crew_site.gd

@@ -0,0 +1,47 @@
+extends Node3D
+## Where a band of the drowned crew rose (treasure.gd): what their guard
+## brains (guard.gd) ask of their "barrow". They're up and angry from the
+## start, chase whoever's nearest within LEASH of the dig, and go back to
+## stand round it when nobody is. By day, once nobody's been near for a
+## while, they sink back into the ground.
+
+const LEASH := 20.0
+const SINK_AFTER := 30.0     ## seconds with nobody near, by day
+
+var world: Node3D
+var spot := Vector3.ZERO
+var alarmed := true
+var crew: Array = []
+var _alone := 0.0
+
+func center() -> Vector3:
+	return spot
+
+func wakes_for(p: Node3D) -> bool:
+	return alarmed and not p.survival.dead
+
+func alarm() -> void:
+	alarmed = true
+
+## (Out in the open: they walk on the ground.)
+func floor_y_at(_p: Vector3) -> float:
+	return -INF
+
+func is_night() -> bool:
+	var h: float = world.day_night.hours()
+	return h >= 19.5 or h < 5.5
+
+func alive() -> Array:
+	return crew.filter(func(g): return is_instance_valid(g) and not g.is_dead())
+
+func _physics_process(delta: float) -> void:
+	var anyone := false
+	for p in world.players():
+		if not p.survival.dead and p.global_position.distance_to(spot) < LEASH:
+			anyone = true
+	_alone = 0.0 if anyone or is_night() else _alone + delta
+	if alive().is_empty() or _alone > SINK_AFTER:
+		for g in crew:
+			if is_instance_valid(g) and not g.is_dead():
+				g.queue_free()
+		queue_free()