Late connection

scripts/gui/hud/player_round_display.gd

@@ -5,6 +5,7 @@ extends Label
 # Called when the node enters the scene tree for the first time.
 func _ready() -> void:
 	Session.round_started.connect(update)
+	Session.session_started.connect(update)
 
 func update():
 	if our_side:

scripts/gui/lobby/lobby_buttons.gd

@@ -3,13 +3,5 @@ extends Node
 func _ready() -> void:
 	Lobby.lobby_joined.connect(on_lobby_joined)
 
-func _on_leave_button_pressed() -> void:
-	Lobby.leave()
-	$"../..".hide()
-	$"../../../MainMenu".show()
-
-func _on_start_button_pressed() -> void:
-	Lobby.start_game.rpc()
-
 func on_lobby_joined() -> void:
 	$StartButton.hide()

scripts/gui/main_menu_gui.gd

@@ -1,8 +1,9 @@
-extends Node
+extends Control
 
 
 func _ready() -> void:
 	Lobby.lobby_joined.connect(hide_host_buttons)
+	Session.session_started.connect(hide)
 	Lobby.lobby_created.connect(show_host_buttons)
 	Lobby.lobby_closed.connect(cleanup_lobby)
 	Lobby.update_teams_state.connect(on_player_switched_team)
@@ -20,7 +21,7 @@ func cleanup_lobby() -> void:
 
 
 func _on_start_button_pressed() -> void:
-	Lobby.start_game.rpc()
+	Lobby.start_game()
 
 func hide_host_buttons() -> void:
 	%StartButton.hide()

scripts/multiplayer/lobby.gd

@@ -145,12 +145,12 @@ func server_team_switch(id: int, team: int) -> void:
 			defence_team.erase(id)
 		specators_team.append(id)
 
-@rpc("authority","call_local","reliable")
 func start_game() -> void:
-	get_tree().change_scene_to_file("res://levels/prototype_scene.tscn")
-	if multiplayer.is_server():
-		await get_tree().scene_changed
-		Session.start_session()
+	if not multiplayer.is_server():
+		return
+	get_tree().current_scene.get_node("%MainMenu").visible = false
+	get_tree().current_scene.get_node("%LevelContainer").add_child(preload("res://levels/prototype_scene.tscn").instantiate())
+	Session.start_session()
 
 func get_team() -> Session.TEAMS:
 	var id = multiplayer.get_unique_id()

scripts/multiplayer/session.gd

@@ -19,7 +19,10 @@ enum ROUND_STATES {
 const ATTACK_LAYER: int = 0b10000
 const DEFENCE_LAYER: int = 0b100000
 
+signal session_started
+signal session_ended
 signal round_started
+signal late_player_connected(id: int)
 signal round_state_changed(state: int)
 signal player_stopped_interacting(id: int)
 
@@ -41,7 +44,7 @@ var round_timer: Timer
 var buy_timer: Timer
 
 var round_state: ROUND_STATES
-var session_started: bool = false
+var session_started_flag: bool = false
 
 var reference_round_time: float
 
@@ -67,6 +70,38 @@ func _ready() -> void:
 	add_child(bomb_timer)
 	add_child(round_timer)
 	add_child(buy_timer)
+	
+	multiplayer.peer_connected.connect(sync_session_server)
+
+func sync_session_server(id: int):
+	if multiplayer.is_server() == false or session_started_flag == false:
+		return
+	
+	var data: PackedByteArray
+	data.resize(6)
+	data.encode_u8(0,current_round)
+	data.encode_u8(1,attacker_score)
+	data.encode_u8(2,defender_score)
+	data.encode_u8(3,attackers_alive)
+	data.encode_u8(4,defenders_alive)
+	data.encode_u8(5,round_state)
+	
+	sync_session_client.rpc_id(id,data)
+	late_player_connected.emit(id)
+
+@rpc("authority","call_remote","reliable")
+func sync_session_client(data: PackedByteArray):
+	if not is_server_request():
+		return
+	
+	current_round = data.decode_u8(0)
+	attacker_score = data.decode_u8(1)
+	defender_score = data.decode_u8(2)
+	attackers_alive = data.decode_u8(3)
+	defenders_alive = data.decode_u8(4)
+	round_state = data.decode_u8(5) as ROUND_STATES
+	session_started.emit()
+	
 
 func _process(_delta: float) -> void:
 	if multiplayer.is_server() == false or not session_started:
@@ -96,7 +131,8 @@ func start_session() -> void:
 	current_round = 0
 	attacker_score = 0
 	defender_score = 0
-	session_started = true
+	session_started_flag = true
+	session_started.emit()
 	
 	start_round()
 
@@ -111,8 +147,9 @@ func end_session() -> void:
 	round_timer.stop()
 	buy_timer.stop()
 	object_containers.clear()
+	session_ended.emit()
 
-	session_started = false
+	session_started_flag = false
 
 @rpc("authority","call_remote","reliable")
 func start_round() -> void:

scripts/multiplayer/spawn_system/team_spawner.gd

@@ -8,6 +8,9 @@ func _ready() -> void:
 		queue_free()
 		return
 	Session.round_started.connect(spawn)
+	if team == Session.TEAMS.SPECTATE:
+		Session.late_player_connected.connect(spawn_spectator)
+	
 
 func _exit_tree() -> void:
 	if not multiplayer.is_server():