feat: Add lobby and multiplayer room management with Nakama and ENet LAN support.

scenes/lobby.gd

@@ -726,12 +726,8 @@ func _on_ready_state_changed(_player_id: int, _is_ready: bool) -> void:
 
 func _on_all_players_ready() -> void:
 	if LobbyManager.is_host:
-		if LobbyManager.is_lan_mode and LobbyManager.players_in_room.size() == 1:
-			# Auto-start for solo LAN testing
-			LobbyManager.start_game()
-		else:
-			start_game_btn.disabled = false
-			status_label.text = "All ready! Start the match!"
+		start_game_btn.disabled = false
+		status_label.text = "All ready! Start the match!"
 	else:
 		status_label.text = "All ready! Waiting for host..."
 
@@ -876,6 +872,8 @@ func _update_player_slots() -> void:
 			if ready_label:
 				ready_label.text = "WAITING..."
 				ready_label.add_theme_color_override("font_color", Color(0.5, 0.5, 0.7))
+	
+	_update_status()
 
 func _update_status() -> void:
 	var players = LobbyManager.get_players()

scenes/safe_zone_wall.tscn

@@ -1,24 +1,24 @@
 [gd_scene format=3 uid="uid://b8yqx5v3n8u1p"]
 
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_block"]
+albedo_color = Color(0.46, 0.46, 0.46, 1)
+metallic = 0.5
+roughness = 0.8
+uv1_scale = Vector3(3, 2, 1)
+
+[sub_resource type="BoxMesh" id="BoxMesh_wall"]
+material = SubResource("StandardMaterial3D_block")
+size = Vector3(1, 2, 0.1)
+
 [sub_resource type="BoxShape3D" id="BoxShape3D_wall"]
 size = Vector3(1, 2, 0.1)
 
-[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_wall"]
-albedo_color = Color(0.8, 0.2, 0.2, 0.8)
-emission_enabled = true
-emission = Color(1, 0, 0, 1)
-emission_energy_multiplier = 0.5
-
-[sub_resource type="BoxMesh" id="BoxMesh_wall"]
-material = SubResource("StandardMaterial3D_wall")
-size = Vector3(1, 2, 0.1)
-
-[node name="SafeZoneWall" type="StaticBody3D"]
-collision_layer = 1
+[node name="SafeZoneWall" type="StaticBody3D" unique_id=393858776]
 collision_mask = 0
 
-[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
+[node name="MeshInstance3D" type="MeshInstance3D" parent="." unique_id=110057234]
+visible = false
 mesh = SubResource("BoxMesh_wall")
 
-[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+[node name="CollisionShape3D" type="CollisionShape3D" parent="." unique_id=1293049960]
 shape = SubResource("BoxShape3D_wall")

scenes/wall_3d.tscn

@@ -1,4 +1,4 @@
-[gd_scene format=3 uid="uid://cggmcgvdj6wxt"]
+[gd_scene format=3 uid="uid://sb04b5pkw2g6"]
 
 [sub_resource type="BoxShape3D" id="BoxShape3D_wall"]
 size = Vector3(1.68, 1.5, 0.05)
@@ -6,9 +6,6 @@ size = Vector3(1.68, 1.5, 0.05)
 [node name="Wall3D" type="StaticBody3D" unique_id=992511920]
 collision_mask = 0
 
-[node name="MeshInstance3D" type="MeshInstance3D" parent="." unique_id=1405008923]
-transform = Transform3D(1.68, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0)
-
 [node name="CollisionShape3D" type="CollisionShape3D" parent="." unique_id=1446599023]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.35764623, 0)
 shape = SubResource("BoxShape3D_wall")

scripts/managers/lobby_manager.gd

@@ -359,8 +359,8 @@ func sync_ready_state(player_id: int, is_ready: bool) -> void:
 
 func _check_all_ready() -> void:
 	"""Check if all players are ready."""
-	# In LAN mode allow solo play - only 1 player needed
-	var min_players = 1 if is_lan_mode else 2
+	# Allow solo play in both LAN and Nakama modes
+	var min_players = 1
 	if players_in_room.size() < min_players:
 		_all_ready = false
 		return
@@ -373,17 +373,6 @@ func _check_all_ready() -> void:
 	_all_ready = true
 	emit_signal("all_players_ready")
 
-func force_solo_ready() -> void:
-	"""Mark the local player as ready immediately (for solo LAN play)."""
-	if not multiplayer.has_multiplayer_peer():
-		return
-	var my_id = multiplayer.get_unique_id()
-	for player in players_in_room:
-		if player["id"] == my_id:
-			player["is_ready"] = true
-			break
-	_check_all_ready()
-
 func is_all_ready() -> bool:
 	return _all_ready
 
@@ -814,6 +803,7 @@ func _on_peer_connected(peer_id: int) -> void:
 		# Sync player list to all clients
 		rpc("sync_player_list", players_in_room)
 		emit_signal("player_joined", new_player)
+		_check_all_ready()
 	else:
 		# Client: if we connected to the host (peer_id 1), request room info
 		if peer_id == 1 and not is_host:

scripts/managers/stop_n_go_manager.gd

@@ -21,7 +21,7 @@ const POWERUP_SPAWN_COUNT: int = 5 # Number of power-up tiles to spawn
 var powerups_spawned: bool = false
 var stop_phase_occurred: bool = false
 
-var safe_zone_wall_scene = preload("res://scenes/wall_3d.tscn")
+var safe_zone_wall_scene = preload("res://scenes/safe_zone_wall.tscn")
 
 const PERMANENT_POWERUP_LOCATIONS: Array[Vector2i] = [
 	Vector2i(4, 1),   # Power up 1