Add private multiplayer room codes

ONLINE_SETUP.md

@@ -1,4 +1,4 @@
-# Void Bastion Online 0.19
+# Void Bastion Online 0.20
 
 ## Fertiger Stand
 
@@ -22,9 +22,9 @@ Mögliche Spielarten sind `mission`, `endless`, `coop_ai` und `coop_online`.
 
 ## Multiplayer
 
-Die Godot-Anbindung öffnet nach der Anmeldung eine WSS/WS-Echtzeitverbindung. Die schnelle Spielersuche vermittelt exakt zwei Spieler mit derselben Suchart in eine serverautoritative Koop-Sitzung. Der Matchserver verwaltet Teilnehmer, gemeinsame Sitzungsdaten und die Weiterleitung zulässiger Spielnachrichten.
+Die Godot-Anbindung öffnet nach der Anmeldung eine WSS/WS-Echtzeitverbindung. Die schnelle Spielersuche vermittelt exakt zwei passende Spieler. Alternativ erstellt ein Spieler einen privaten Raum mit einem sechsstelligen Code, dem der zweite Spieler gezielt beitritt.
 
-Der lokale KI-Koop bleibt unabhängig davon spielbar. Die vollständige Synchronisation von Türmen, Gegnern und gemeinsamem Reaktor zwischen zwei sichtbaren Spielclients ist der nächste Gameplay-Schritt; Konto, Transport, Vermittlung und Server-Match sind bereits funktionsfähig.
+Der autoritative Matchserver verwaltet Spielerplätze, getrennte Energie, Türme, Gegner, Wellen und die gemeinsamen Reaktorleben. Beide Clients erhalten denselben geprüften Spielzustand. Der lokale KI-Koop bleibt unabhängig davon spielbar.
 
 ## Adressen
 
@@ -41,4 +41,4 @@ Die öffentliche Freischaltung ist abgeschlossen: Der autoritative DNS-Eintrag `
 - echter Onlinetest im Heimnetz: `godot --headless --path . --script res://tests/online_integration_test.gd`
 - Produktionstest: `VOID_BASTION_TEST_HOST=api.void-bastion.gergames.de VOID_BASTION_TEST_SCHEME=https VOID_BASTION_TEST_PORT=443 godot --headless --path . --script res://tests/online_integration_test.gd`
 
-Der Onlinetest prüft zwei Gastanmeldungen, RPC, Ergebnisannahme, Ranglistenabruf, zwei WebSocket-Verbindungen, Matchmaking und den Beitritt beider Clients zur selben autoritativen Partie.
+Der Onlinetest prüft zwei Gastanmeldungen, RPC, Ergebnisannahme, Ranglistenabruf, zwei WebSocket-Verbindungen, schnelles Matchmaking, autoritative Spielzustände sowie Erstellen und Beitreten eines privaten Raums per Code.

README.md

@@ -1,4 +1,4 @@
-# Void Bastion – spielbarer Prototyp 0.19
+# Void Bastion – spielbarer Prototyp 0.20
 
 Ein plattformübergreifender 2D-Tower-Defense-Prototyp für Godot 4. Der aktuelle Stand ist für Windows, Android und später iOS ausgelegt.
 
@@ -39,10 +39,10 @@ Ein plattformübergreifender 2D-Tower-Defense-Prototyp für Godot 4. Der aktuell
 - dauerhaftes lokales Gastprofil mit stabiler Spieler-ID als Grundlage für Apple-, Google- und Windows-Anmeldung
 - eigene Profilansicht mit lokalen Missions- und Endlosbestwerten pro Karte
 - wartende, lokal gespeicherte Highscore-Einträge für die spätere sichere Serverübertragung
-- eigener Multiplayerbereich mit schnellem Spiel, Freundeseinladung und privatem Raum als vorbereitete Sucharten
+- eigener Multiplayerbereich mit schneller Spielersuche sowie privaten Koop-Räumen mit sechsstelligen Raumcodes
 - Vorschau einer symmetrisch gespiegelten Zwei-Spieler-Arena mit gemeinsamem Reaktor
 - getrennte Ressourcenmodelle für beide Koop-Spieler sowie gemeinsam geteilte Reaktorleben
-- sichtbarer, abbrechbarer Vorbereitungszustand für die spätere servergestützte Spielersuche
+- sichtbarer und jederzeit abbrechbarer Wartezustand für schnelle und private Online-Partien
 - bereits spielbarer lokaler Koop-Modus mit einem KI-Partner auf der gespiegelten Kartenhälfte
 - nahezu verdoppelte Koop-Weltbreite: Beide Spieler erhalten eine vollständige Kartenhälfte in ursprünglicher Größe
 - Spiegelachse direkt durch den vorhandenen Kartenreaktor, sodass Hintergrundreaktor, gemeinsamer Zielpunkt und Laufwege wieder zusammenpassen
@@ -102,7 +102,7 @@ Die öffentliche Spiel-API ist unter `api.void-bastion.gergames.de` erreichbar.
 
 ## Steuerung
 
-> **Online-Stand 0.19:** Der offizielle Nakama-Godot-Client, automatische Gastanmeldung, 36 autoritative Ranglisten, geprüfte Ergebnisübermittlung, Echtzeit-Sockets und das serverautoritative Zwei-Spieler-Matchmaking sind eingebaut und gegen Unraid getestet. Die öffentliche API ist über `https://api.void-bastion.gergames.de` mit einem gültigen Let’s-Encrypt-Zertifikat freigeschaltet. Details stehen in `ONLINE_SETUP.md`.
+> **Online-Stand 0.20:** Der offizielle Nakama-Godot-Client, automatische Gastanmeldung, 36 autoritative Ranglisten, geprüfte Ergebnisübermittlung, Echtzeit-Sockets, serverautoritativer Zwei-Spieler-Koop und private Räume per Raumcode sind eingebaut. Die öffentliche API ist über `https://api.void-bastion.gergames.de` mit einem gültigen Let’s-Encrypt-Zertifikat freigeschaltet. Details stehen in `ONLINE_SETUP.md`.
 
 - Turm unten auswählen und auf eine freie Plattformfläche klicken oder tippen.
 - Am PC folgt der Reichweitenkreis vor dem Bau dem Mauszeiger. Auf Mobilgeräten markiert der erste Tipp den Bauplatz samt Reichweite; der zweite Tipp auf dasselbe Feld bestätigt den Bau.
@@ -117,6 +117,7 @@ Die öffentliche Spiel-API ist unter `api.void-bastion.gergames.de` erreichbar.
 - `P`, Escape oder die Pause-Schaltfläche pausiert das Spiel.
 - Nach Welle 15 kann die erfolgreiche Mission beendet oder freiwillig im Endlosmodus fortgesetzt werden.
 - Unter **Multiplayer → Mit KI-Partner** startet die gespiegelte Koop-Arena sofort. Du baust auf der vollständigen linken Karte, die KI auf deren vollständiger Spiegelung; beide Seiten verteidigen denselben Reaktor. Mit **KI >** und **< ICH** wird ohne Verkleinerung zwischen beiden Seiten gewechselt.
+- Unter **Multiplayer → Raum erstellen** wird ein privater Koop-Raum angelegt und ein sechsstelliger Code angezeigt. Der Mitspieler wählt **Raum beitreten** und gibt diesen Code ein.
 
 ## Nächste Produktionsschritte
 
@@ -125,8 +126,8 @@ Die öffentliche Spiel-API ist unter `api.void-bastion.gergames.de` erreichbar.
 3. Kampagnenfortschritt und zusätzliche Bossvarianten
 4. Freischaltmenü für neue Türme und Karten mit den bereits gespeicherten Kernkristallen
 5. Plattformkonten mit einer eigenen plattformübergreifenden Spieler-ID verbinden
-6. Autoritativen Koop-Spielserver, Räume, Freundeseinladungen und Spielersuche anbinden
-7. Die gespiegelte Koop-Arena spielbar machen und anschließend über echte Geräte synchron testen
+6. Private Raumcodes und die autoritative Koop-Synchronisierung auf echten Android-, iOS- und Windows-Geräten testen
+7. Freundesliste, Einladungen und Wiederverbindung nach kurzzeitigem Netzverlust ergänzen
 8. Store-Käufe erst nach stabiler Offline- und Koop-Kernversion
 
 ## Godot Agent Tools MCP

main.gd

@@ -137,7 +137,10 @@ var friend_match_button := Rect2(475, 665, 300, 64)
 var private_match_button := Rect2(825, 665, 300, 64)
 var ai_match_button := Rect2(1175, 665, 300, 64)
 var cancel_search_button := Rect2(625, 650, 350, 64)
+var room_code_input_rect := Rect2(510, 340, 580, 90)
+var join_room_button := Rect2(625, 525, 350, 64)
 var coop_side_button := Rect2(920, 18, 140, 54)
+var room_code_input := ""
 
 @onready var ads_manager = $AdsManager
 @onready var account_manager = $AccountManager
@@ -366,6 +369,20 @@ func _update_effects(delta: float) -> void:
 
 
 func _unhandled_input(event: InputEvent) -> void:
+	if game_mode == "room_code_entry" and event is InputEventKey and event.pressed and not event.echo:
+		if event.keycode == KEY_ESCAPE:
+			_hide_virtual_keyboard()
+			game_mode = "multiplayer_menu"
+		elif event.keycode == KEY_BACKSPACE:
+			room_code_input = room_code_input.left(maxi(0, room_code_input.length() - 1))
+		elif event.keycode == KEY_ENTER:
+			_join_entered_room()
+		elif event.unicode > 0 and room_code_input.length() < 6:
+			var character := char(event.unicode).to_upper()
+			if "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".contains(character):
+				room_code_input += character
+		queue_redraw()
+		return
 	if event is InputEventKey and event.pressed and not event.echo and event.keycode in [KEY_P, KEY_ESCAPE] and game_mode in ["playing", "paused"]:
 		_toggle_pause()
 		return
@@ -409,13 +426,23 @@ func _handle_pointer(position: Vector2, is_touch := false) -> void:
 		elif quick_match_button.has_point(position):
 			_open_matchmaking("quick")
 		elif friend_match_button.has_point(position):
-			_open_matchmaking("friend")
+			_open_room_code_entry()
 		elif private_match_button.has_point(position):
-			_open_matchmaking("private")
+			_open_private_room()
 		elif ai_match_button.has_point(position):
 			_start_coop_ai_game()
 		queue_redraw()
 		return
+	if game_mode == "room_code_entry":
+		if multiplayer_back_button.has_point(position):
+			_hide_virtual_keyboard()
+			game_mode = "multiplayer_menu"
+		elif room_code_input_rect.has_point(position):
+			_show_room_code_keyboard()
+		elif join_room_button.has_point(position):
+			_join_entered_room()
+		queue_redraw()
+		return
 	if game_mode == "matchmaking":
 		if cancel_search_button.has_point(position) or multiplayer_back_button.has_point(position):
 			multiplayer_manager.cancel_search()
@@ -607,6 +634,41 @@ func _open_matchmaking(mode: String) -> void:
 	queue_redraw()
 
 
+func _open_private_room() -> void:
+	multiplayer_manager.reset_coop_session(int(_difficulty().start_credits), 30)
+	multiplayer_manager.create_private_room(selected_difficulty)
+	game_mode = "matchmaking"
+	queue_redraw()
+
+
+func _open_room_code_entry() -> void:
+	room_code_input = ""
+	game_mode = "room_code_entry"
+	_show_room_code_keyboard()
+	queue_redraw()
+
+
+func _join_entered_room() -> void:
+	if room_code_input.length() != 6:
+		_show_status("DER RAUMCODE MUSS SECHS ZEICHEN HABEN")
+		return
+	_hide_virtual_keyboard()
+	multiplayer_manager.reset_coop_session(int(_difficulty().start_credits), 30)
+	multiplayer_manager.join_private_room(room_code_input)
+	game_mode = "matchmaking"
+	queue_redraw()
+
+
+func _show_room_code_keyboard() -> void:
+	if DisplayServer.has_feature(DisplayServer.FEATURE_VIRTUAL_KEYBOARD):
+		DisplayServer.virtual_keyboard_show(room_code_input, room_code_input_rect, DisplayServer.KEYBOARD_TYPE_DEFAULT, 6, room_code_input.length(), room_code_input.length())
+
+
+func _hide_virtual_keyboard() -> void:
+	if DisplayServer.has_feature(DisplayServer.FEATURE_VIRTUAL_KEYBOARD):
+		DisplayServer.virtual_keyboard_hide()
+
+
 func _start_game() -> void:
 	coop_online_mode = false
 	credits = int(_difficulty().start_credits)
@@ -1111,7 +1173,7 @@ func _load_progress() -> void:
 
 
 func _draw() -> void:
-	if game_mode in ["menu", "profile", "multiplayer_menu", "matchmaking"]:
+	if game_mode in ["menu", "profile", "multiplayer_menu", "room_code_entry", "matchmaking"]:
 		draw_texture_rect(MAP_TEXTURES[selected_map], Rect2(Vector2.ZERO, SCREEN), false, Color("f3f6fb"))
 		draw_rect(Rect2(Vector2.ZERO, SCREEN), Color(0.01, 0.025, 0.055, 0.06))
 		if game_mode == "menu":
@@ -1120,6 +1182,8 @@ func _draw() -> void:
 			_draw_profile()
 		elif game_mode == "multiplayer_menu":
 			_draw_multiplayer_menu()
+		elif game_mode == "room_code_entry":
+			_draw_room_code_entry()
 		else:
 			_draw_matchmaking()
 		return
@@ -1426,14 +1490,30 @@ func _draw_multiplayer_menu() -> void:
 	draw_string(font, Vector2(945, 225), "MITSPIELER  •  ENERGIE %d" % multiplayer_manager.player_credits[1], HORIZONTAL_ALIGNMENT_RIGHT, 440, 17, Color("ffcf7a"))
 	draw_string(font, Vector2(570, 555), "REAKTORLEBEN  %02d  •  GETRENNTE RESSOURCEN" % multiplayer_manager.shared_reactor_lives, HORIZONTAL_ALIGNMENT_CENTER, 460, 16, Color.WHITE)
 	_draw_button(quick_match_button, "SCHNELLES SPIEL", false, Color("185f68"))
-	_draw_button(friend_match_button, "MIT FREUND SPIELEN", false, Color("254f75"))
-	_draw_button(private_match_button, "PRIVATES SPIEL", false, Color("493f67"))
+	_draw_button(friend_match_button, "RAUM BEITRETEN", false, Color("254f75"))
+	_draw_button(private_match_button, "RAUM ERSTELLEN", false, Color("493f67"))
 	_draw_button(ai_match_button, "MIT KI-PARTNER", false, Color("6b4b28"))
 	var service_text := "GERGAMES-SERVER VERBUNDEN  •  ONLINE-KOOP IST SPIELBEREIT" if online_manager.is_online() else "VERBINDUNG ZUM GERGAMES-SERVER WIRD AUTOMATISCH AUFGEBAUT"
 	var service_color := Color("83ffc8") if online_manager.is_online() else Color("ffcf7a")
 	draw_string(font, Vector2(0, 770), service_text, HORIZONTAL_ALIGNMENT_CENTER, 1600, 15, service_color)
 
 
+func _draw_room_code_entry() -> void:
+	var font := ThemeDB.fallback_font
+	draw_rect(Rect2(Vector2.ZERO, SCREEN), Color(0.005, 0.015, 0.035, 0.88))
+	_draw_button(multiplayer_back_button, "<  ZURÜCK", false, Color("26394a"))
+	draw_string(font, Vector2(0, 205), "PRIVATEN RAUM BEITRETEN", HORIZONTAL_ALIGNMENT_CENTER, 1600, 42, Color("c7f5ff"))
+	draw_string(font, Vector2(0, 260), "GIB DEN SECHSSTELLIGEN CODE DEINES MITPILOTEN EIN", HORIZONTAL_ALIGNMENT_CENTER, 1600, 17, Color("66dff3"))
+	draw_rect(room_code_input_rect, Color(0.01, 0.035, 0.065, 0.98), true)
+	draw_rect(room_code_input_rect, Color("65eaff") if room_code_input.length() == 6 else Color("39788e"), false, 3.0)
+	var shown_code := room_code_input
+	if shown_code.is_empty():
+		shown_code = "------"
+	draw_string(font, Vector2(room_code_input_rect.position.x, room_code_input_rect.position.y + 61), "  ".join(shown_code.split("")), HORIZONTAL_ALIGNMENT_CENTER, room_code_input_rect.size.x, 38, Color("8ffaff") if not room_code_input.is_empty() else Color("688293"))
+	draw_string(font, Vector2(0, 470), "BUCHSTABEN UND ZAHLEN  •  GROSS-/KLEINSCHREIBUNG IST EGAL", HORIZONTAL_ALIGNMENT_CENTER, 1600, 14, Color("9fdce9"))
+	_draw_button(join_room_button, "RAUM BEITRETEN", room_code_input.length() == 6, Color("185f68") if room_code_input.length() == 6 else Color("26394a"))
+
+
 func _draw_coop_lane_preview(mirrored: bool) -> void:
 	var points := PackedVector2Array([Vector2(205, 300), Vector2(505, 300), Vector2(505, 385), Vector2(720, 385)])
 	if mirrored:
@@ -1453,13 +1533,17 @@ func _draw_matchmaking() -> void:
 	var font := ThemeDB.fallback_font
 	draw_rect(Rect2(Vector2.ZERO, SCREEN), Color(0.005, 0.015, 0.035, 0.88))
 	_draw_button(multiplayer_back_button, "<  ZURÜCK", false, Color("26394a"))
-	draw_string(font, Vector2(0, 210), "MITSPIELERSUCHE", HORIZONTAL_ALIGNMENT_CENTER, 1600, 46, Color("c7f5ff"))
+	var private_mode: bool = multiplayer_manager.matchmaking_mode in ["private_host", "private_join"]
+	draw_string(font, Vector2(0, 210), "PRIVATER KOOP-RAUM" if private_mode else "MITSPIELERSUCHE", HORIZONTAL_ALIGNMENT_CENTER, 1600, 46, Color("c7f5ff"))
 	var pulse := 56.0 + sin(elapsed * 3.0) * 8.0
 	draw_arc(Vector2(800, 390), pulse, -PI * 0.2, PI * 1.45, 52, Color("65eaff"), 5.0)
 	draw_circle(Vector2(800, 390), 22.0, Color("8ffaff"))
-	var mode_labels := {"quick": "SCHNELLES SPIEL", "friend": "FREUND EINLADEN", "private": "PRIVATEN RAUM ERSTELLEN"}
-	draw_string(font, Vector2(0, 500), mode_labels.get(multiplayer_manager.matchmaking_mode, "KOOP-SPIEL"), HORIZONTAL_ALIGNMENT_CENTER, 1600, 23, Color.WHITE)
-	_draw_button(cancel_search_button, "SUCHE ABBRECHEN", false, Color("5c3342"))
+	var mode_labels := {"quick": "SCHNELLES SPIEL", "private_host": "RAUM ERSTELLEN", "private_join": "RAUM BEITRETEN"}
+	var mode_text: String = mode_labels.get(multiplayer_manager.matchmaking_mode, "KOOP-SPIEL")
+	if not multiplayer_manager.private_room_code.is_empty():
+		mode_text = "RAUMCODE   %s" % "  ".join(multiplayer_manager.private_room_code.split(""))
+	draw_string(font, Vector2(0, 500), mode_text, HORIZONTAL_ALIGNMENT_CENTER, 1600, 23, Color.WHITE)
+	_draw_button(cancel_search_button, "ZURÜCK" if multiplayer_manager.matchmaking_state == "room_not_found" else "SUCHE ABBRECHEN", false, Color("5c3342"))
 	var online_text := "ONLINE  •  SUCHE NACH EINEM MITPILOTEN"
 	var online_color := Color("83ffc8")
 	if multiplayer_manager.matchmaking_state == "waiting_for_service":
@@ -1471,6 +1555,18 @@ func _draw_matchmaking() -> void:
 	elif multiplayer_manager.matchmaking_state == "matched":
 		online_text = "MITPILOT GEFUNDEN  •  KOOP-SITZUNG BEREIT"
 		online_color = Color("8ffaff")
+	elif multiplayer_manager.matchmaking_state == "creating_room":
+		online_text = "PRIVATER RAUM WIRD ERSTELLT ."
+		online_color = Color("ffcf7a")
+	elif multiplayer_manager.matchmaking_state == "hosting":
+		online_text = "TEILE DEN RAUMCODE MIT DEINEM MITPILOTEN  •  WARTE AUF BEITRITT"
+		online_color = Color("83ffc8")
+	elif multiplayer_manager.matchmaking_state == "joining_room":
+		online_text = "PRIVATER RAUM WIRD GESUCHT ."
+		online_color = Color("ffcf7a")
+	elif multiplayer_manager.matchmaking_state == "room_not_found":
+		online_text = "RAUM NICHT GEFUNDEN ODER BEREITS VOLL"
+		online_color = Color("ff8e8e")
 	draw_rect(Rect2(180, 520, 1240, 44), Color(0.005, 0.015, 0.035, 0.98), true)
 	draw_string(font, Vector2(0, 548), online_text, HORIZONTAL_ALIGNMENT_CENTER, 1600, 16, online_color)
 

multiplayer_manager.gd

@@ -12,6 +12,7 @@ const COOP_REACTOR_LIVES := 30
 var matchmaking_state := "idle"
 var matchmaking_mode := ""
 var matchmaking_difficulty := 1
+var private_room_code := ""
 var online_match = null
 var online_mode := false
 var player_slot := -1
@@ -26,6 +27,7 @@ func reset_coop_session(start_credits := COOP_START_CREDITS, reactor_lives := CO
 	online_mode = false
 	player_slot = -1
 	latest_snapshot = {}
+	private_room_code = ""
 
 
 func spend_player_credits(player_index: int, amount: int) -> bool:
@@ -76,11 +78,37 @@ func begin_search(mode := "quick", difficulty := 1) -> void:
 	call_deferred("_begin_online_search", mode)
 
 
+func create_private_room(difficulty := 1) -> void:
+	matchmaking_mode = "private_host"
+	matchmaking_difficulty = clampi(difficulty, 0, 2)
+	private_room_code = ""
+	online_match = null
+	online_mode = false
+	player_slot = -1
+	latest_snapshot = {}
+	matchmaking_state = "waiting_for_service"
+	state_changed.emit(matchmaking_state)
+	call_deferred("_create_private_room_online")
+
+
+func join_private_room(room_code: String) -> void:
+	matchmaking_mode = "private_join"
+	private_room_code = room_code.to_upper().strip_edges()
+	online_match = null
+	online_mode = false
+	player_slot = -1
+	latest_snapshot = {}
+	matchmaking_state = "waiting_for_service"
+	state_changed.emit(matchmaking_state)
+	call_deferred("_join_private_room_online")
+
+
 func cancel_search() -> void:
 	var online_manager = get_parent().get_node_or_null("OnlineManager")
 	if online_manager:
 		online_manager.cancel_matchmaking()
 	matchmaking_mode = ""
+	private_room_code = ""
 	matchmaking_state = "idle"
 	state_changed.emit(matchmaking_state)
 
@@ -102,10 +130,43 @@ func _begin_online_search(mode: String) -> void:
 	state_changed.emit(matchmaking_state)
 
 
+func _ensure_online_manager():
+	var online_manager = get_parent().get_node_or_null("OnlineManager")
+	if not online_manager:
+		matchmaking_state = "offline"
+		state_changed.emit(matchmaking_state)
+		return null
+	if not online_manager.is_authenticated():
+		await online_manager.connect_and_authenticate()
+	return online_manager
+
+
+func _create_private_room_online() -> void:
+	var online_manager = await _ensure_online_manager()
+	if not online_manager or matchmaking_mode != "private_host":
+		return
+	var created: bool = await online_manager.create_private_room(matchmaking_difficulty)
+	private_room_code = online_manager.private_room_code if created else ""
+	matchmaking_state = "hosting" if created else online_manager.connection_state
+	state_changed.emit(matchmaking_state)
+
+
+func _join_private_room_online() -> void:
+	var online_manager = await _ensure_online_manager()
+	if not online_manager or matchmaking_mode != "private_join":
+		return
+	var joined: bool = await online_manager.join_private_room(private_room_code)
+	matchmaking_state = "matched" if joined else "room_not_found"
+	state_changed.emit(matchmaking_state)
+
+
 func _on_online_matchmaking_state_changed(value: String) -> void:
 	if matchmaking_state == "idle":
 		return
 	matchmaking_state = value
+	var online_manager = get_parent().get_node_or_null("OnlineManager")
+	if online_manager and not online_manager.private_room_code.is_empty():
+		private_room_code = online_manager.private_room_code
 	state_changed.emit(matchmaking_state)
 
 

online_manager.gd

@@ -9,6 +9,7 @@ signal matchmaking_state_changed(state: String)
 signal match_found(match_data)
 signal match_snapshot_received(snapshot: Dictionary)
 signal match_event_received(event: Dictionary)
+signal private_room_created(room_code: String)
 
 const SERVER_KEY := "voidbastion-public-v1"
 const PRODUCTION_HOST := "api.void-bastion.gergames.de"
@@ -30,6 +31,7 @@ var last_error := ""
 var current_host := ""
 var current_match = null
 var matchmaker_ticket := ""
+var private_room_code := ""
 var account_manager: AccountManager
 var auto_connect_enabled := true
 
@@ -102,6 +104,7 @@ func disconnect_from_server() -> void:
 	session = null
 	current_match = null
 	matchmaker_ticket = ""
+	private_room_code = ""
 	_set_connection_state("offline")
 
 
@@ -178,9 +181,62 @@ func cancel_matchmaking() -> void:
 	if socket and not matchmaker_ticket.is_empty():
 		await socket.remove_matchmaker_async(matchmaker_ticket)
 	matchmaker_ticket = ""
+	if current_match != null and not private_room_code.is_empty():
+		await socket.leave_match_async(current_match.match_id)
+		current_match = null
+	private_room_code = ""
 	matchmaking_state_changed.emit("idle")
 
 
+func create_private_room(difficulty := 1) -> bool:
+	if not is_online() or socket == null:
+		matchmaking_state_changed.emit("offline")
+		return false
+	matchmaking_state_changed.emit("creating_room")
+	var result = await client.rpc_async(session, "create_private_room", JSON.stringify({"difficulty": clampi(difficulty, 0, 2)}))
+	var data := _parse_rpc_result(result)
+	var match_id := String(data.get("match_id", ""))
+	private_room_code = String(data.get("room_code", ""))
+	if match_id.is_empty() or private_room_code.length() != 6:
+		private_room_code = ""
+		matchmaking_state_changed.emit("error")
+		return false
+	current_match = await socket.join_match_async(match_id)
+	if current_match == null or current_match.is_exception():
+		current_match = null
+		private_room_code = ""
+		matchmaking_state_changed.emit("error")
+		return false
+	private_room_created.emit(private_room_code)
+	matchmaking_state_changed.emit("hosting")
+	await send_match_command(OP_READY, {})
+	return true
+
+
+func join_private_room(room_code: String) -> bool:
+	if not is_online() or socket == null:
+		matchmaking_state_changed.emit("offline")
+		return false
+	private_room_code = room_code.to_upper().strip_edges()
+	matchmaking_state_changed.emit("joining_room")
+	var result = await client.rpc_async(session, "join_private_room", JSON.stringify({"room_code": private_room_code}))
+	var data := _parse_rpc_result(result)
+	var match_id := String(data.get("match_id", ""))
+	if not bool(data.get("found", false)) or match_id.is_empty():
+		private_room_code = ""
+		matchmaking_state_changed.emit("room_not_found")
+		return false
+	current_match = await socket.join_match_async(match_id)
+	if current_match == null or current_match.is_exception():
+		current_match = null
+		private_room_code = ""
+		matchmaking_state_changed.emit("room_not_found")
+		return false
+	matchmaking_state_changed.emit("matched")
+	await send_match_command(OP_READY, {})
+	return true
+
+
 func _on_matchmaker_matched(matched) -> void:
 	matchmaker_ticket = ""
 	current_match = await socket.join_matched_async(matched)
@@ -219,6 +275,7 @@ func leave_current_match() -> void:
 	if socket and current_match != null:
 		await socket.leave_match_async(current_match.match_id)
 	current_match = null
+	private_room_code = ""
 
 
 func _on_match_state(data) -> void:

server/nakama/runtime/build/index.js

@@ -3,6 +3,8 @@ var MAP_COUNT = 3;
 var DIFFICULTY_COUNT = 3;
 var VALID_MODES = ["mission", "endless", "coop_ai", "coop_online"];
 var MATCH_MODULE = "void_bastion_coop";
+var ROOM_COLLECTION = "private_rooms";
+var SYSTEM_USER_ID = "00000000-0000-0000-0000-000000000000";
 var OP_SNAPSHOT = 1, OP_EVENT = 2, OP_BUILD = 10, OP_UPGRADE = 11, OP_SELL = 12, OP_START_WAVE = 13, OP_READY = 14;
 var TICK_RATE = 10, SNAPSHOT_TICKS = 2, GRID = 80, WORLD_WIDTH = 2960, MIRROR_X = 1480;
 var REACTOR_X = 1480, REACTOR_Y = 440, REACTOR_RADIUS = 112, PLAYFIELD_TOP = 92, PLAYFIELD_BOTTOM = 758;
@@ -46,6 +48,47 @@ function rpcSubmitRun(ctx, logger, nk, payload) {
     return JSON.stringify({accepted:true,leaderboard_id:id,rank:record.rank,score:Number(record.score),wave:wave});
 }
 
+function normalizeRoomCode(value) {
+    return String(value || "").toUpperCase().replace(/[^A-Z0-9]/g, "").slice(0, 6);
+}
+function generateRoomCode() {
+    var alphabet = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789", code = "";
+    for (var i = 0; i < 6; i++) code += alphabet.charAt(Math.floor(Math.random() * alphabet.length));
+    return code;
+}
+function privateRoomRecord(nk, code) {
+    var records = nk.storageRead([{collection:ROOM_COLLECTION,key:code,userId:SYSTEM_USER_ID}]);
+    return records.length ? records[0] : null;
+}
+function deletePrivateRoomRecord(nk, code) {
+    if (code) nk.storageDelete([{collection:ROOM_COLLECTION,key:code,userId:SYSTEM_USER_ID}]);
+}
+function rpcCreatePrivateRoom(ctx, logger, nk, payload) {
+    if (!ctx.userId) throw new Error("authentication required");
+    var request;
+    try { request = JSON.parse(payload || "{}"); } catch (error) { request = {}; }
+    var difficulty = Math.max(0, Math.min(2, Math.floor(Number(request.difficulty || 1))));
+    var code = "";
+    for (var attempt = 0; attempt < 24; attempt++) {
+        var candidate = generateRoomCode();
+        if (!privateRoomRecord(nk, candidate)) { code = candidate; break; }
+    }
+    if (!code) throw new Error("room code allocation failed");
+    var matchId = nk.matchCreate(MATCH_MODULE, {difficulty:difficulty,mode:"private",roomCode:code,hostUserId:ctx.userId});
+    nk.storageWrite([{collection:ROOM_COLLECTION,key:code,userId:SYSTEM_USER_ID,value:{match_id:matchId,host_user_id:ctx.userId,created_at:Date.now()},permissionRead:0,permissionWrite:0}]);
+    return JSON.stringify({created:true,room_code:code,match_id:matchId});
+}
+function rpcJoinPrivateRoom(ctx, logger, nk, payload) {
+    if (!ctx.userId) throw new Error("authentication required");
+    var request;
+    try { request = JSON.parse(payload || "{}"); } catch (error) { request = {}; }
+    var code = normalizeRoomCode(request.room_code);
+    if (code.length !== 6) return JSON.stringify({found:false,error:"invalid_room_code"});
+    var record = privateRoomRecord(nk, code);
+    if (!record || !record.value || !record.value.match_id) return JSON.stringify({found:false,error:"room_not_found"});
+    return JSON.stringify({found:true,room_code:code,match_id:String(record.value.match_id)});
+}
+
 function matchmakerMatched(ctx, logger, nk, matches) {
     var difficulty = 1;
     if (matches.length && matches[0].properties && matches[0].properties.difficulty !== undefined) difficulty = Math.max(0,Math.min(2,Math.floor(Number(matches[0].properties.difficulty))));
@@ -54,9 +97,10 @@ function matchmakerMatched(ctx, logger, nk, matches) {
 function initialState(params) {
     var difficulty = Math.max(0,Math.min(2,Math.floor(Number(params.difficulty||1))));
     var credits = DIFFICULTIES[difficulty].startCredits;
-    return {presences:{},slots:{},started:false,gameOver:false,difficulty:difficulty,credits:[credits,credits],reactorLives:30,wave:0,waveActive:false,spawnRemaining:0,spawnTimer:0,nextSpawnRoute:0,nextEnemyId:1,nextTowerId:1,towers:[],enemies:[],lastSnapshotTick:0};
+    return {presences:{},slots:{},started:false,gameOver:false,difficulty:difficulty,mode:String(params.mode||"quick"),roomCode:normalizeRoomCode(params.roomCode),hostUserId:String(params.hostUserId||""),emptyTicks:0,credits:[credits,credits],reactorLives:30,wave:0,waveActive:false,spawnRemaining:0,spawnTimer:0,nextSpawnRoute:0,nextEnemyId:1,nextTowerId:1,towers:[],enemies:[],lastSnapshotTick:0};
 }
-function matchInit(ctx,logger,nk,params) { return {state:initialState(params||{}),tickRate:TICK_RATE,label:JSON.stringify({game:"void_bastion",mode:"coop",open:true})}; }
+function matchLabel(state) { return state.mode === "private" ? state.roomCode : JSON.stringify({game:"void_bastion",mode:state.mode,open:!state.started&&!state.gameOver}); }
+function matchInit(ctx,logger,nk,params) { var state=initialState(params||{}); return {state:state,tickRate:TICK_RATE,label:matchLabel(state)}; }
 function matchJoinAttempt(ctx,logger,nk,dispatcher,tick,state,presence,metadata) { return {state:state,accept:Object.keys(state.presences).length<2}; }
 function firstFreeSlot(state) {
     var used={},ids=Object.keys(state.slots);
@@ -71,13 +115,15 @@ function broadcastEvent(dispatcher,type,data) { var payload=data||{}; payload.ty
 function matchJoin(ctx,logger,nk,dispatcher,tick,state,presences) {
     for (var i=0;i<presences.length;i++) { var p=presences[i]; state.presences[p.userId]=p; if (state.slots[p.userId]===undefined) state.slots[p.userId]=firstFreeSlot(state); }
     state.started=Object.keys(state.presences).length===2;
+    state.emptyTicks=0;
+    dispatcher.matchLabelUpdate(matchLabel(state));
     broadcastEvent(dispatcher,"players",{count:Object.keys(state.presences).length,started:state.started,slots:state.slots});
     broadcastSnapshot(dispatcher,state,tick);
     return {state:state};
 }
 function matchLeave(ctx,logger,nk,dispatcher,tick,state,presences) {
     for (var i=0;i<presences.length;i++) delete state.presences[presences[i].userId];
-    state.started=false; broadcastEvent(dispatcher,"partner_left",{}); broadcastSnapshot(dispatcher,state,tick); return {state:state};
+    state.started=false; dispatcher.matchLabelUpdate(matchLabel(state)); broadcastEvent(dispatcher,"partner_left",{}); broadcastSnapshot(dispatcher,state,tick); return {state:state};
 }
 function parseMessage(nk,message) { try { return JSON.parse(nk.binaryToString(message.data)||"{}"); } catch (error) { return null; } }
 function towerDamage(t) { return TOWERS[t.type].damage*(1+(t.level-1)*0.52); }
@@ -174,18 +220,24 @@ function handleCommand(nk,dispatcher,state,message) {
     if (!changed) broadcastEvent(dispatcher,"command_rejected",{op_code:message.opCode,player:slot});
 }
 function matchLoop(ctx,logger,nk,dispatcher,tick,state,messages) {
+    if (!Object.keys(state.presences).length) {
+        state.emptyTicks += 1;
+        if (state.emptyTicks >= TICK_RATE * 60) { deletePrivateRoomRecord(nk,state.roomCode); return null; }
+    } else state.emptyTicks = 0;
     for (var i=0;i<messages.length;i++) handleCommand(nk,dispatcher,state,messages[i]);
     if (state.started&&!state.gameOver) { var delta=1/TICK_RATE; updateWave(state,delta,dispatcher); updateEnemies(state,delta); updateTowers(state,delta); }
     if (tick-state.lastSnapshotTick>=SNAPSHOT_TICKS||messages.length) broadcastSnapshot(dispatcher,state,tick);
     return {state:state};
 }
-function matchTerminate(ctx,logger,nk,dispatcher,tick,state,graceSeconds) { broadcastEvent(dispatcher,"server_shutdown",{grace:graceSeconds}); return {state:state}; }
+function matchTerminate(ctx,logger,nk,dispatcher,tick,state,graceSeconds) { deletePrivateRoomRecord(nk,state.roomCode); broadcastEvent(dispatcher,"server_shutdown",{grace:graceSeconds}); return {state:state}; }
 function matchSignal(ctx,logger,nk,dispatcher,tick,state,data) { return {state:state,data:JSON.stringify(snapshot(state,tick))}; }
 
 function InitModule(ctx,logger,nk,initializer) {
     for (var mode=0;mode<VALID_MODES.length;mode++) for (var map=0;map<MAP_COUNT;map++) for (var difficulty=0;difficulty<DIFFICULTY_COUNT;difficulty++) nk.leaderboardCreate(leaderboardId(map,difficulty,VALID_MODES[mode]),true,"desc","best",null,{game:"void_bastion"});
     initializer.registerRpc("server_info",rpcServerInfo);
     initializer.registerRpc("submit_run",rpcSubmitRun);
+    initializer.registerRpc("create_private_room",rpcCreatePrivateRoom);
+    initializer.registerRpc("join_private_room",rpcJoinPrivateRoom);
     initializer.registerMatchmakerMatched(matchmakerMatched);
     initializer.registerMatch(MATCH_MODULE,{matchInit:matchInit,matchJoinAttempt:matchJoinAttempt,matchJoin:matchJoin,matchLeave:matchLeave,matchLoop:matchLoop,matchTerminate:matchTerminate,matchSignal:matchSignal});
     logger.info("Void Bastion online runtime %s loaded",GAME_VERSION);

server/nakama/tests/runtime_sim_test.js

@@ -12,6 +12,11 @@ const sent = [];
 const dispatcher = {
   broadcastMessage(opCode, data) {
     sent.push({ opCode, data: JSON.parse(data) });
+  },
+  matchLabelUpdate(label) {
+    let data = label;
+    try { data = JSON.parse(label); } catch (error) {}
+    sent.push({ opCode: "label", data });
   }
 };
 const nk = { binaryToString: data => Buffer.from(data).toString("utf8") };
@@ -25,6 +30,24 @@ state = context.matchJoin({}, logger, nk, dispatcher, 2, state, [presenceB]).sta
 assert.strictEqual(state.started, true);
 assert.strictEqual(state.slots["pilot-a"], 0);
 assert.strictEqual(state.slots["pilot-b"], 1);
+assert.ok(sent.some(entry => entry.opCode === "label" && entry.data.open === false));
+assert.strictEqual(context.normalizeRoomCode(" ab-c12! "), "ABC12");
+
+const privateMatch = context.matchInit({}, logger, nk, { difficulty: 2, mode: "private", roomCode: "AB23CD", hostUserId: "pilot-a" });
+assert.strictEqual(privateMatch.label, "AB23CD");
+assert.strictEqual(privateMatch.state.difficulty, 2);
+
+const roomStorage = new Map();
+const nkRooms = {
+  storageRead(ops) { return ops.map(op => roomStorage.get(op.key)).filter(Boolean); },
+  storageWrite(ops) { for (const op of ops) roomStorage.set(op.key, { value: op.value }); },
+  storageDelete(ops) { for (const op of ops) roomStorage.delete(op.key); },
+  matchCreate() { return "private-match-id"; }
+};
+const createdRoom = JSON.parse(context.rpcCreatePrivateRoom({ userId: "pilot-a" }, logger, nkRooms, JSON.stringify({ difficulty: 2 })));
+assert.strictEqual(createdRoom.room_code.length, 6);
+const joinedRoom = JSON.parse(context.rpcJoinPrivateRoom({ userId: "pilot-b" }, logger, nkRooms, JSON.stringify({ room_code: createdRoom.room_code.toLowerCase() })));
+assert.strictEqual(joinedRoom.match_id, "private-match-id");
 
 function message(sender, opCode, payload) {
   return { sender, opCode, data: Buffer.from(JSON.stringify(payload)) };

tests/online_integration_test.gd

@@ -34,7 +34,7 @@ func _run() -> void:
 	assert(info_data is Dictionary and info_data.get("status") == "online", "Der Server muss seinen Onlinestatus melden.")
 	assert(info_data.get("version") == "0.20", "Der Server muss die aktuelle Runtime 0.20 geladen haben: %s" % info_data)
 
-	var run_payload := JSON.stringify({"map": 1, "difficulty": 1, "mode": "mission", "wave": 4, "score": 4700, "client_version": "0.19-integration"})
+	var run_payload := JSON.stringify({"map": 1, "difficulty": 1, "mode": "mission", "wave": 4, "score": 4700, "client_version": "0.20-integration"})
 	var submitted = await client_a.rpc_async(session_a, "submit_run", run_payload)
 	assert(not submitted.is_exception(), "Ein plausibles Ergebnis muss serverseitig angenommen werden.")
 	var records = await client_a.list_leaderboard_records_async(session_a, "mission_map1_difficulty1", null, null, 10)
@@ -83,6 +83,33 @@ func _run() -> void:
 	assert((snapshot_a.get("towers", []) as Array).size() == 2, "Beide autorisierten Bauaufträge müssen serverseitig sichtbar sein.")
 	assert(JSON.stringify(snapshot_a.get("towers", [])) == JSON.stringify(snapshot_b.get("towers", [])), "Beide Clients müssen denselben Turmzustand erhalten.")
 	assert(int(snapshot_a.get("reactor_lives", 0)) == int(snapshot_b.get("reactor_lives", -1)), "Beide Clients müssen dieselben gemeinsamen Reaktorleben sehen.")
+	assert(not (await socket_a.leave_match_async(match_a.match_id)).is_exception(), "Spieler A muss die schnelle Partie verlassen können.")
+	assert(not (await socket_b.leave_match_async(match_b.match_id)).is_exception(), "Spieler B muss die schnelle Partie verlassen können.")
+	await create_timer(0.2).timeout
+	snapshot_a = {}
+	snapshot_b = {}
+	var created_room = await client_a.rpc_async(session_a, "create_private_room", JSON.stringify({"difficulty": 2}))
+	assert(not created_room.is_exception(), "Spieler A muss einen privaten Raum erstellen können.")
+	var created_data = JSON.parse_string(created_room.payload)
+	assert(created_data is Dictionary, "Der private Raum muss gültige Daten liefern.")
+	var room_code := String(created_data.get("room_code", ""))
+	var private_match_id := String(created_data.get("match_id", ""))
+	assert(room_code.length() == 6 and not private_match_id.is_empty(), "Der Server muss einen sechsstelligen Raumcode und eine Partie liefern.")
+	var private_match_a = await socket_a.join_match_async(private_match_id)
+	assert(not private_match_a.is_exception(), "Der Gastgeber muss seinem privaten Raum beitreten können.")
+	var found_room = await client_b.rpc_async(session_b, "join_private_room", JSON.stringify({"room_code": room_code.to_lower()}))
+	assert(not found_room.is_exception(), "Der Mitspieler muss den Raumcode unabhängig von Groß-/Kleinschreibung finden können.")
+	var found_data = JSON.parse_string(found_room.payload)
+	assert(found_data is Dictionary and String(found_data.get("match_id", "")) == private_match_id, "Der Raumcode muss genau zur erstellten Partie führen: %s" % found_data)
+	var private_match_b = await socket_b.join_match_async(private_match_id)
+	assert(not private_match_b.is_exception(), "Der Mitspieler muss dem privaten Raum beitreten können.")
+	for attempt in 100:
+		if bool(snapshot_a.get("started", false)) and bool(snapshot_b.get("started", false)):
+			break
+		await create_timer(0.05).timeout
+	assert(bool(snapshot_a.get("started", false)) and bool(snapshot_b.get("started", false)), "Der private Raum muss mit zwei Spielern die gemeinsame Partie starten.")
+	assert(int(snapshot_a.get("difficulty", -1)) == 2 and int(snapshot_b.get("difficulty", -1)) == 2, "Die private Partie muss den Schwierigkeitsgrad des Gastgebers übernehmen.")
+	assert(private_match_a.match_id == private_match_b.match_id, "Beide Spieler müssen über den Raumcode dieselbe private Partie erhalten.")
 	socket_a.close()
 	socket_b.close()
 	print("VOID_BASTION_ONLINE_INTEGRATION_OK")