feat: Implement a new portal door game mode with arena partitioning, dynamic connections, and multiplayer synchronization.

scenes/main.gd

@@ -58,6 +58,14 @@ func _ready():
 	if multiplayer.is_server():
 		randomize_game_grid()
 
+@rpc("any_peer", "call_local", "reliable")
+func sync_portal_configs(configs: Array):
+	if portal_mode_manager:
+		# Temporarily store the configs and trigger spawn
+		# Note: We use a custom property in manager to pass this
+		portal_mode_manager.set_meta("door_configs", configs)
+		portal_mode_manager._spawn_portal_doors()
+
 	# Force gridmap cell size to match player logic (1, 0.05, 1) - >0.001 to avoid errors
 	var em = $EnhancedGridMap
 	if em:

scenes/portal_door.tscn

@@ -21,7 +21,7 @@ emission = Color(0.0, 0.4, 1.0, 1)
 emission_energy_multiplier = 2.0
 
 [sub_resource type="BoxShape3D" id="BoxShape3D_trigger"]
-size = Vector3(1.4, 2.1, 0.5)
+size = Vector3(1.4, 2.1, 0.8)
 
 [sub_resource type="SceneReplicationConfig" id="SceneReplicationConfig_portal"]
 properties/0/path = NodePath(":target_room_id")