W1: choose a worldlet (New World and Host Game pages, kept once an island exists), worldlet shown in the Load list; Godot .uid files

scripts/world/barrow.gd.uid

@@ -0,0 +1 @@
+uid://5vs0iggnxpuc

scripts/world/hazards.gd.uid

@@ -0,0 +1 @@
+uid://bmcefncielej3

scripts/world/standing_stones.gd.uid

@@ -0,0 +1 @@
+uid://c4dyxek30amhh

scripts/world/terrain.gd

@@ -169,9 +169,20 @@ static func worldlets() -> Array:
 		if f.ends_with(".json"):
 			var d := load_worldlet(f.get_basename())
 			if not d.is_empty():
-				out.append({"id": String(d.id), "name": String(d.get("name", d.id)), "description": String(d.get("description", ""))})
+				out.append({"id": String(d.id), "name": String(d.get("name", d.id)), "description": String(d.get("description", "")),
+					"start": bool(d.get("start", false))})
+	out.sort_custom(func(a, b): return a.id == "valley" or (b.id != "valley" and a.name < b.name))
 	return out
 
+## The worldlets a new world can start in (the rest are reached on the journey).
+static func starting_worldlets() -> Array:
+	return worldlets().filter(func(w): return w.start)
+
+## A worldlet's display name ("Valley"), or its id if there's no such worldlet.
+static func worldlet_name(id: String) -> String:
+	var d := load_worldlet(id)
+	return String(d.get("name", id)) if not d.is_empty() else id
+
 ## Takes on worldlet `id`: its size and every block's numbers. Returns ""
 ## on success, else what's wrong (an unknown worldlet or block keeps the old
 ## settings, so the game still has an island).

scripts/world/weather.gd.uid

@@ -0,0 +1 @@
+uid://b5x4pld4ecyr4

scripts/world/weather_fx.gd.uid

@@ -0,0 +1 @@
+uid://ch20dfnan2yed