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

data/worldlets/valley.json

@@ -1,8 +1,9 @@
 {
-  "_doc": "A worldlet (docs/WORLDLETS_DESIGN.md): its size, and its terrain as building blocks applied in order (scripts/world/terrain.gd: hills, rim, sea_cliff, lake, ocean_edge). The numbers here are the Valley exactly as it was hand-coded: tests/test_worldlets.gd checks it still makes the same height grid.",
+  "_doc": "A worldlet (docs/WORLDLETS_DESIGN.md): its name and description (the New World page), whether a new world can start here (\"start\"; the others are reached on the journey), its size, and its terrain as building blocks applied in order (scripts/world/terrain.gd: hills, rim, sea_cliff, lake, ocean_edge). The numbers here are the Valley exactly as it was hand-coded: tests/test_worldlets.gd checks it still makes the same height grid.",
   "id": "valley",
   "name": "Valley",
   "description": "A sheltered valley ringed by mountains, with a lake in the middle and sea cliffs on one side.",
+  "start": true,
   "size": 320,
   "resolution": 256,
   "terrain": [

scripts/building/bed.gd.uid

@@ -0,0 +1 @@
+uid://nx08dmty60ny

scripts/building/build_piece.gd.uid

@@ -0,0 +1 @@
+uid://dsbvhwas6wsxf

scripts/building/build_system.gd.uid

@@ -0,0 +1 @@
+uid://gj02g6p3xfip

scripts/building/door.gd.uid

@@ -0,0 +1 @@
+uid://dhsyx4mrm28oe

scripts/building/forge.gd.uid

@@ -0,0 +1 @@
+uid://cl5ip4achfdwo

scripts/building/hearth.gd.uid

@@ -0,0 +1 @@
+uid://mjs6qb5p3q1a

scripts/building/jar.gd.uid

@@ -0,0 +1 @@
+uid://ciqsy8msggcke

scripts/building/lamp.gd.uid

@@ -0,0 +1 @@
+uid://cwvlv0fbxhlgj

scripts/building/processor.gd.uid

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

scripts/building/rug.gd.uid

@@ -0,0 +1 @@
+uid://d21if6sepl888

scripts/building/stonecutter.gd.uid

@@ -0,0 +1 @@
+uid://dk1ge2xxgiev1

scripts/core/boot.gd.uid

@@ -0,0 +1 @@
+uid://frm15unnr4w5

scripts/core/guide.gd.uid

@@ -0,0 +1 @@
+uid://nva2x7o0ggw1

scripts/core/hints.gd.uid

@@ -0,0 +1 @@
+uid://cd4pyfn6igpx0

scripts/core/music.gd.uid

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

scripts/core/narrator.gd.uid

@@ -0,0 +1 @@
+uid://ctvohlyg6yr5m

scripts/core/sfx.gd.uid

@@ -0,0 +1 @@
+uid://br583euuk842q

scripts/core/updates.gd.uid

@@ -0,0 +1 @@
+uid://3lflq11qfg00

scripts/creatures/bear.gd.uid

@@ -0,0 +1 @@
+uid://co3yk3efstys2

scripts/creatures/bear_range.gd.uid

@@ -0,0 +1 @@
+uid://ce34amx3oagyx

scripts/creatures/creature.gd.uid

@@ -0,0 +1 @@
+uid://cdxggdwnq1ctn

scripts/creatures/creature_meshes.gd.uid

@@ -0,0 +1 @@
+uid://dy6utmjegblry

scripts/creatures/crow.gd.uid

@@ -0,0 +1 @@
+uid://bs230fcuvorft

scripts/creatures/den.gd.uid

@@ -0,0 +1 @@
+uid://beng43qyj6rke

scripts/creatures/fox.gd.uid

@@ -0,0 +1 @@
+uid://cfailgwvqv2fc

scripts/creatures/guard.gd.uid

@@ -0,0 +1 @@
+uid://x0xva7tw6ind

scripts/creatures/old_stag.gd.uid

@@ -0,0 +1 @@
+uid://f88v5i7s5e5c

scripts/creatures/projectile.gd.uid

@@ -0,0 +1 @@
+uid://ccpmq0ddkoc8g

scripts/creatures/spawner.gd.uid

@@ -0,0 +1 @@
+uid://dukt8gme03lsb

scripts/creatures/thieves.gd.uid

@@ -0,0 +1 @@
+uid://cpwa4sffdi3nt

scripts/creatures/tutorial_wolf.gd.uid

@@ -0,0 +1 @@
+uid://b8wfmfnhg2edq

scripts/creatures/wolf.gd.uid

@@ -0,0 +1 @@
+uid://024u453fdbml

scripts/creatures/wolf_pack.gd.uid

@@ -0,0 +1 @@
+uid://cbb3g7cjprhy8

scripts/fishing/bobber.gd.uid

@@ -0,0 +1 @@
+uid://br7isyu6hxnsd

scripts/fishing/lake_fish.gd.uid

@@ -0,0 +1 @@
+uid://cs6ucd2nldqmj

scripts/net/avatar.gd.uid

@@ -0,0 +1 @@
+uid://bccgr18dkfhad

scripts/net/character_mesh.gd.uid

@@ -0,0 +1 @@
+uid://w2qc4a4ai4vt

scripts/net/chat.gd.uid

@@ -0,0 +1 @@
+uid://cj8ew4d4huen5

scripts/net/creature_net.gd.uid

@@ -0,0 +1 @@
+uid://c3amf3mwhetmf

scripts/net/identity.gd.uid

@@ -0,0 +1 @@
+uid://x0plvp658wne

scripts/net/net.gd

@@ -304,14 +304,14 @@ var _host_out := ""
 var _host_port := DEFAULT_PORT
 
 ## Settings for a hosted game: name, password, port, a rules preset
-## (co-op / rivals / adversarial) and the seed for a new island.
+## (co-op / rivals / adversarial) and the seed and worldlet for a new island.
 const PRESETS := {
 	"co-op": {"pvp": "false", "raiding": "false", "locks": "owner_and_friends", "death_penalty": "grave"},
 	"rivals": {"pvp": "true", "raiding": "false", "locks": "owner_and_friends", "death_penalty": "grave"},
 	"adversarial": {"pvp": "true", "raiding": "true", "locks": "owner", "death_penalty": "drop_all"},
 }
 
-func host(server_name: String, password: String, port: int, preset: String, seed: int) -> void:
+func host(server_name: String, password: String, port: int, preset: String, seed: int, worldlet: String = "valley") -> void:
 	if hosting or state != "offline":
 		return
 	if _host_pid != 0 and OS.is_process_running(_host_pid):
@@ -324,8 +324,9 @@ func host(server_name: String, password: String, port: int, preset: String, seed
 	c.data.password = password
 	c.data.port = port
 	var fresh := not FileAccess.file_exists(host_config.get_base_dir().path_join("worlds/server-world/meta.json"))
-	if fresh:
+	if fresh:   # (an island keeps its seed and worldlet once it's made)
 		c.data.seed = seed
+		c.data.worldlet = worldlet
 	c.save()
 	_host_port = port
 	var args := PackedStringArray(["--headless"])

scripts/net/net.gd.uid

@@ -0,0 +1 @@
+uid://d1153ihwyw01t

scripts/net/net_sync.gd.uid

@@ -0,0 +1 @@
+uid://bgyhqtmwppt4g

scripts/net/player_net.gd.uid

@@ -0,0 +1 @@
+uid://dim4cfgbtabvf

scripts/net/rules.gd.uid

@@ -0,0 +1 @@
+uid://d2fotty6gceeh

scripts/net/server_config.gd.uid

@@ -0,0 +1 @@
+uid://cykv4lse4g62a

scripts/net/server_player.gd.uid

@@ -0,0 +1 @@
+uid://dkdnvh8f18o2x

scripts/net/world_net.gd.uid

@@ -0,0 +1 @@
+uid://cmk7ho2ij6esq

scripts/ui/guide.gd.uid

@@ -0,0 +1 @@
+uid://dbijp4r843nyk

scripts/ui/hint_card.gd.uid

@@ -0,0 +1 @@
+uid://0npv7fub184o

scripts/ui/hut_outline.gd.uid

@@ -0,0 +1 @@
+uid://87b73wsdjp7t

scripts/ui/title_screen.gd

@@ -370,6 +370,7 @@ func _host_page() -> Control:
 		_host_preset.add_item(n)
 	_host_preset.custom_minimum_size = Vector2(420, 36)
 	v.add_child(_host_preset)
+	_host_worldlet = _worldlet_picker(v)
 	var row := HBoxContainer.new()
 	row.add_theme_constant_override("separation", 10)
 	var c1 := VBoxContainer.new()
@@ -424,6 +425,7 @@ func _fill_host() -> void:
 	_host_seed.editable = not existing
 	_host_seed_label.text = "Seed" if not existing else "Seed (kept)"
 	_host_seed.text = "" if not existing else str(int(c.data.seed))
+	_show_host_worldlet(existing, meta_path)
 	_host_msg.text = "Your hosted island carries on where you left it." if existing else "A new island will be made."
 	_host_msg.add_theme_color_override("font_color", UITheme.TEXT_DIM)
 	_host_btn.disabled = false
@@ -439,7 +441,8 @@ func _start_host() -> void:
 	if name.is_empty():
 		name = "%s's island" % Net.get_identity().name
 	_host_btn.disabled = true
-	Net.host(name, _host_pw.text, int(port_t), PRESET_IDS[maxi(_host_preset.selected, 0)], seed)
+	Net.host(name, _host_pw.text, int(port_t), PRESET_IDS[maxi(_host_preset.selected, 0)], seed,
+		picked_worldlet(_host_worldlet))
 
 func _on_host_status(text: String, failed: bool) -> void:
 	if not _pages["host"].visible:
@@ -591,6 +594,7 @@ func _new_page() -> Control:
 		_rot_pick.add_item(t[1])
 	_rot_pick.custom_minimum_size = Vector2(360, 36)
 	v.add_child(_rot_pick)
+	_worldlet_pick = _worldlet_picker(v)
 	var h := HBoxContainer.new()
 	h.add_theme_constant_override("separation", 10)
 	h.add_child(_button("Create & Play", _create, 170))
@@ -633,7 +637,8 @@ func _fill_list() -> void:
 		info.add_child(UITheme.label(w.name, 18))
 		var played := int(w.get("play_time", 0.0))
 		var when := Time.get_datetime_string_from_unix_time(int(w.get("last_played", 0)), true)
-		info.add_child(UITheme.label("seed %d  ·  played %dh %02dm  ·  %s" % [int(w.seed), played / 3600, (played / 60) % 60, when], 13, UITheme.TEXT_DIM))
+		info.add_child(UITheme.label("%s  ·  seed %d  ·  played %dh %02dm  ·  %s" % [Terrain.worldlet_name(String(w.get("worldlet", "valley"))),
+			int(w.seed), played / 3600, (played / 60) % 60, when], 13, UITheme.TEXT_DIM))
 		h.add_child(info)
 		h.add_child(_button("Play", _play.bind(w.id), 80))
 		var del := Button.new()
@@ -681,7 +686,68 @@ func _create() -> void:
 	var seed_text := _seed_edit.text.strip_edges()
 	var seed := int(seed_text) if seed_text.is_valid_int() else (seed_text.hash() if not seed_text.is_empty() else randi())
 	var rot: String = ROT_CHOICES[maxi(_rot_pick.selected, 0)][0]
-	_play(Saves.create_world(world_name, seed, {"rot": rot}))
+	_play(Saves.create_world(world_name, seed, {"rot": rot, "worldlet": picked_worldlet(_worldlet_pick)}))
+
+# --- worldlets (docs/WORLDLETS_DESIGN.md, W1) -----------------------------------------
+
+const Terrain = preload("res://scripts/world/terrain.gd")
+var _worldlet_pick: OptionButton
+var _host_worldlet: OptionButton
+
+## "Where": the worldlets a new world can start in, with the chosen one's
+## description under it. (Only the Valley today: the others are reached on
+## the journey, so the list is short and the picker sits still.)
+func _worldlet_picker(v: VBoxContainer) -> OptionButton:
+	var starts: Array = Terrain.starting_worldlets()
+	v.add_child(UITheme.label("Where", 15, UITheme.TEXT_DIM))
+	var pick := OptionButton.new()
+	pick.custom_minimum_size = Vector2(360, 36)
+	pick.focus_mode = Control.FOCUS_NONE
+	for w in starts:
+		pick.add_item(String(w.name))
+		pick.set_item_metadata(pick.item_count - 1, String(w.id))
+	pick.disabled = starts.size() < 2
+	v.add_child(pick)
+	var about := UITheme.label(String(starts[0].description) if not starts.is_empty() else "", 13, UITheme.TEXT_DIM)
+	about.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
+	about.custom_minimum_size = Vector2(360, 0)
+	v.add_child(about)
+	pick.item_selected.connect(func(i: int):
+		about.text = String(Terrain.load_worldlet(String(pick.get_item_metadata(i))).get("description", "")))
+	return pick
+
+## The Host page's "Where": a hosted island keeps its worldlet, like its
+## seed, so once it exists the picker shows that one and stays put.
+func _show_host_worldlet(existing: bool, meta_path: String) -> void:
+	var id := "valley"
+	if existing:
+		var meta: Variant = JSON.parse_string(FileAccess.get_file_as_string(meta_path))
+		if meta is Dictionary:
+			id = String(meta.get("worldlet", "valley"))
+	var i := select_worldlet(_host_worldlet, id)
+	if i >= 0:
+		_host_worldlet.item_selected.emit(i)
+	_host_worldlet.disabled = existing or _host_worldlet.item_count < 2
+
+## Selects worldlet `id` in `pick`, adding it if it isn't a starting one
+## (an island made somewhere else). Returns its index, or -1.
+static func select_worldlet(pick: OptionButton, id: String) -> int:
+	for i in pick.item_count:
+		if String(pick.get_item_metadata(i)) == id:
+			pick.select(i)
+			return i
+	if Terrain.load_worldlet(id).is_empty():
+		return -1
+	pick.add_item(Terrain.worldlet_name(id))
+	pick.set_item_metadata(pick.item_count - 1, id)
+	pick.select(pick.item_count - 1)
+	return pick.item_count - 1
+
+## The id of the worldlet chosen in `pick` (the Valley if nothing is).
+static func picked_worldlet(pick: OptionButton) -> String:
+	if pick == null or pick.item_count == 0 or pick.selected < 0:
+		return "valley"
+	return String(pick.get_item_metadata(pick.selected))
 
 ## The tutorial (docs/TUTORIAL_DESIGN.md): its own world on the original
 ## island (seed 1337), made the first time and carried on after that.

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

tests/net_bot.gd.uid

@@ -0,0 +1 @@
+uid://coc65tapbhoan

tests/net_world_bot.gd.uid

@@ -0,0 +1 @@
+uid://c770mv6jl6dbb

tests/run_all.sh

@@ -9,7 +9,7 @@ if [ ! -f .godot/global_script_class_cache.cfg ]; then
 	echo "Importing the project first (fresh copy)..."
 	godot --headless --path . --import >/dev/null 2>&1
 fi
-for t in test_survival_core test_survival_stats test_save_load test_weather_building test_creatures_combat test_wolves test_alpha test_bear test_thieves test_barrow test_boss test_den_sites test_fishing_diet test_food test_hazards test_iron test_stone test_net_lobby test_net_world test_net_shared test_net_life test_net_boss test_net_rules test_host test_tutorial test_tutorial_full test_hints test_updates test_audio test_items_more test_worldlets test_terrain_edges test_boundary; do
+for t in test_survival_core test_survival_stats test_save_load test_weather_building test_creatures_combat test_wolves test_alpha test_bear test_thieves test_barrow test_boss test_den_sites test_fishing_diet test_food test_hazards test_iron test_stone test_net_lobby test_net_world test_net_shared test_net_life test_net_boss test_net_rules test_host test_tutorial test_tutorial_full test_hints test_updates test_audio test_items_more test_worldlets test_worldlet_pick test_terrain_edges test_boundary; do
 	extra=""
 	[ "$t" = "test_boundary" ] && extra="--fixed-fps 30"
 	# A suite that waits on a world that failed to load would hang forever,

tests/test_alpha.gd.uid

@@ -0,0 +1 @@
+uid://ck4x0gw0w6q54

tests/test_audio.gd.uid

@@ -0,0 +1 @@
+uid://dkwpi1kjp11us

tests/test_barrow.gd.uid

@@ -0,0 +1 @@
+uid://bveecfelviv2q

tests/test_bear.gd.uid

@@ -0,0 +1 @@
+uid://bwv2gjno475ns

tests/test_boss.gd.uid

@@ -0,0 +1 @@
+uid://emp4g3jo3n6u

tests/test_creatures_combat.gd.uid

@@ -0,0 +1 @@
+uid://b181ahffmk3oy

tests/test_den_sites.gd.uid

@@ -0,0 +1 @@
+uid://dpmqwgnwum26x

tests/test_fishing_diet.gd.uid

@@ -0,0 +1 @@
+uid://dlm83u70hui08

tests/test_food.gd.uid

@@ -0,0 +1 @@
+uid://ba0oxbbweqnos

tests/test_hazards.gd.uid

@@ -0,0 +1 @@
+uid://b5jjbmkuhcyu2

tests/test_hints.gd.uid

@@ -0,0 +1 @@
+uid://c2sl304vqgqjm

tests/test_host.gd

@@ -46,7 +46,7 @@ func _body() -> void:
 	var statuses: Array[String] = []
 	Net.host_status.connect(func(t, _f): statuses.append(t))
 	print("hosting")
-	Net.host("Alice's island", "", PORT, "rivals", 4242)
+	Net.host("Alice's island", "", PORT, "rivals", 4242, "valley")
 	check(Net.hosting, "Host Game starts a server (%s)" % ", ".join(statuses))
 	await _until(func(): return Net.state == "connected", 40.0)
 	check(Net.state == "connected", "and joins it (%s)" % " -> ".join(statuses))
@@ -56,6 +56,7 @@ func _body() -> void:
 		"with the name and the rules picked (friendly rivals: PvP on)")
 	check(bool(Net.players.get(Net.local_peer, {}).get("admin", false)), "and Alice is its admin")
 	check(int(Net.world_info.get("seed", 0)) == 4242, "a new island from the seed given (%d)" % int(Net.world_info.get("seed", 0)))
+	check(String(Net.world_info.get("worldlet", "")) == "valley", "in the worldlet picked (%s)" % Net.world_info.get("worldlet", "-"))
 	var addrs: Array[String] = Net.my_addresses()
 	check(not addrs.is_empty(), "the addresses friends can use: %s" % ", ".join(addrs))
 	var log_path := ProjectSettings.globalize_path(DIR + "/server.log")
@@ -105,10 +106,12 @@ func _body() -> void:
 	c.data.backups_kept = 3
 	c.save()
 	statuses.clear()
-	Net.host("Alice's island", "", PORT, "co-op", 999)
+	Net.host("Alice's island", "", PORT, "co-op", 999, "cove")
 	await _until(func(): return Net.state == "connected", 40.0)
 	check(Net.state == "connected", "Host Game again: joined (%s)" % " -> ".join(statuses))
 	check(int(Net.world_info.get("seed", 0)) == 4242, "the same island (seed %d, not the new one typed)" % int(Net.world_info.get("seed", 0)))
+	check(String(load("res://scripts/net/server_config.gd").open(DIR + "/server.json").data.worldlet) == "valley",
+		"and the same worldlet (the Valley, not the new one picked)")
 	check(not bool(Net.server_info.get("pvp", true)), "with the rules picked this time (co-op: PvP off)")
 	check(_backups().size() == 3, "start-up made a backup, and only backups_kept (3) are kept (%d)" % _backups().size())
 	_finished = true

tests/test_host.gd.uid

@@ -0,0 +1 @@
+uid://ci1cmi2muyyhm

tests/test_iron.gd.uid

@@ -0,0 +1 @@
+uid://diaexq7aujgcy

tests/test_items_more.gd.uid

@@ -0,0 +1 @@
+uid://c14jw5ojloao8

tests/test_net_boss.gd.uid

@@ -0,0 +1 @@
+uid://clqu3m2ic4h1y

tests/test_net_life.gd.uid

@@ -0,0 +1 @@
+uid://dxjnvqs81vu4l

tests/test_net_lobby.gd.uid

@@ -0,0 +1 @@
+uid://bf4kcu6iapdmv

tests/test_net_rules.gd.uid

@@ -0,0 +1 @@
+uid://cq738mqhslnq6

tests/test_net_shared.gd.uid

@@ -0,0 +1 @@
+uid://dypssblmpnt01

tests/test_net_world.gd.uid

@@ -0,0 +1 @@
+uid://bdcf2xkerrlw1

tests/test_stone.gd.uid

@@ -0,0 +1 @@
+uid://b2jwpmnhtrv2p

tests/test_survival_stats.gd.uid

@@ -0,0 +1 @@
+uid://rj7p5l0et5vo

tests/test_thieves.gd.uid

@@ -0,0 +1 @@
+uid://dlh2tpy6p4cub

tests/test_tutorial.gd.uid

@@ -0,0 +1 @@
+uid://d0kc40mfvtcnx

tests/test_tutorial_full.gd.uid

@@ -0,0 +1 @@
+uid://c2cnl3i4arfv0

tests/test_updates.gd.uid

@@ -0,0 +1 @@
+uid://34ao8ilbht52

tests/test_weather_building.gd.uid

@@ -0,0 +1 @@
+uid://dy1iyx1vqbbrg

tests/test_wolves.gd.uid

@@ -0,0 +1 @@
+uid://8mmbdrbtg53y

tests/test_worldlet_pick.gd

@@ -0,0 +1,110 @@
+extends SceneTree
+## W1 (docs/WORLDLETS_DESIGN.md): choosing a worldlet. The New World and Host
+## Game pages have a "Where" picker listing the worldlets a new world can
+## start in (only the Valley today, so it sits still); a world made from it
+## remembers it; the Load list says where each world is; and a hosted island
+## keeps its worldlet, like its seed, once it's made.
+## Run: godot --headless --path . --script res://tests/test_worldlet_pick.gd
+
+const DIR := "user://test_worldlet_pick"
+
+var _fails := 0
+var _finished := false
+
+func check(cond: bool, what: String) -> void:
+	print(("  ok   " if cond else "  FAIL ") + what)
+	if not cond:
+		_fails += 1
+
+func _initialize() -> void:
+	_run.call_deferred()
+
+func _run() -> void:
+	var S: Node = root.get_node("Saves")
+	var Net: Node = root.get_node("Net")
+	S.root_dir = DIR + "/worlds"
+	_rm_tree(DIR)
+	DirAccess.make_dir_recursive_absolute(DIR)
+	Net.host_config = DIR + "/server/server.json"
+	var me = load("res://scripts/net/identity.gd").open(DIR + "/me")
+	me.name = "Alice"
+	Net.identity = me
+	await _body(S, Net)
+	check(_finished, "test ran to the end (no script errors)")
+	_rm_tree(DIR)
+	print("RESULT: %s (%d failures)" % ["PASS" if _fails == 0 else "FAIL", _fails])
+	quit(1 if _fails > 0 else 0)
+
+func _body(S: Node, Net: Node) -> void:
+	var T: Script = load("res://scripts/world/terrain.gd")
+	var TS: Script = load("res://scripts/ui/title_screen.gd")
+	print("the worldlets to start in")
+	var starts: Array = T.starting_worldlets()
+	check(starts.size() == 1 and String(starts[0].id) == "valley", "only the Valley (%s)" % [starts.map(func(w): return w.id)])
+	check(T.worldlets().all(func(w): return w.has("start")), "every worldlet says whether it's a start")
+	check(T.worldlet_name("valley") == "Valley", "the Valley's name, for the menus")
+	check(T.worldlet_name("nowhere") == "nowhere", "(an unknown one: its id)")
+	check(TS.picked_worldlet(null) == "valley", "nothing picked: the Valley")
+
+	print("the New World page")
+	var title: Node = load("res://scenes/title.tscn").instantiate()
+	root.add_child(title)
+	for _i in range(3):
+		await process_frame
+	var pick: OptionButton = title._worldlet_pick
+	check(pick != null and pick.item_count == 1 and pick.get_item_text(0) == "Valley", "a \"Where\" picker with the Valley in it")
+	check(pick.disabled, "which sits still with only one choice")
+	check(TS.picked_worldlet(pick) == "valley", "and gives the Valley")
+	var id: String = S.create_world("Pick test", 4242, {"worldlet": TS.picked_worldlet(pick)})
+	var meta: Dictionary = S.list_worlds().filter(func(w): return w.id == id)[0] if not id.is_empty() else {}
+	check(String(meta.get("worldlet", "")) == "valley", "a world made from it remembers the Valley (%s)" % meta.get("worldlet", "-"))
+
+	print("the Load list")
+	title._show("load")
+	await process_frame
+	check(_texts(title._list).any(func(t): return t.begins_with("Valley  ·  seed 4242")), "says where each world is (%s)" % [_texts(title._list)])
+
+	print("the Host Game page")
+	var hp: OptionButton = title._host_worldlet
+	check(hp != null and hp.get_item_text(hp.selected) == "Valley", "a \"Where\" picker too, on the Valley")
+	title._show("host")
+	await process_frame
+	check(hp.disabled and TS.picked_worldlet(hp) == "valley", "a new island: the Valley (the only start)")
+	# Once the island exists it keeps its worldlet: the picker shows that one.
+	DirAccess.make_dir_recursive_absolute(DIR + "/server/worlds/server-world")
+	var f := FileAccess.open(DIR + "/server/worlds/server-world/meta.json", FileAccess.WRITE)
+	f.store_string(JSON.stringify({"seed": 7, "worldlet": "valley"}))
+	f.close()
+	title._show("host")
+	await process_frame
+	check(hp.disabled and TS.picked_worldlet(hp) == "valley", "an island already made: shows its worldlet, locked")
+	check(title._host_seed_label.text == "Seed (kept)", "(like its seed)")
+	# A worldlet that isn't a start (an island made elsewhere) is still shown.
+	var extra := OptionButton.new()
+	extra.add_item("Valley")
+	extra.set_item_metadata(0, "valley")
+	check(TS.select_worldlet(extra, "valley") == 0, "select_worldlet finds the Valley")
+	check(TS.select_worldlet(extra, "nowhere") == -1 and extra.item_count == 1, "and adds nothing for an unknown one")
+	extra.free()
+	title.queue_free()
+	await process_frame
+
+	print("hosting records the worldlet")
+	var C: Script = load("res://scripts/net/server_config.gd")
+	check(String(C.open(DIR + "/server/server.json").data.worldlet) == "valley", "server.json's worldlet is the Valley by default")
+	_finished = true
+
+func _texts(n: Node) -> Array:
+	var out: Array = []
+	for c in n.find_children("*", "Label", true, false):
+		out.append(String(c.text))
+	return out
+
+static func _rm_tree(d: String) -> void:
+	if not DirAccess.dir_exists_absolute(d):
+		return
+	for f in DirAccess.get_files_at(d):
+		DirAccess.remove_absolute(d.path_join(f))
+	for s in DirAccess.get_directories_at(d):
+		_rm_tree(d.path_join(s))
+	DirAccess.remove_absolute(d)

tests/test_worldlet_pick.gd.uid

@@ -0,0 +1 @@
+uid://bq1s57q65wp3n

tests/test_worldlets.gd.uid

@@ -0,0 +1 @@
+uid://s1e6yemcmng2

tools/site/dump_data.gd.uid

@@ -0,0 +1 @@
+uid://5ok583rm7c4a

tools/trailer/trailer.gd.uid

@@ -0,0 +1 @@
+uid://xrbxktkso4gb