215 lines
6.7 KiB
GDScript3
215 lines
6.7 KiB
GDScript3
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extends Node
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const DISPLAY_NAME_FILE = "user://display_name.txt"
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const DEFAULT_DISPLAY_NAME = "UnnamedPlayer"
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const DEFAULT_SIGNALLER_URL = "ws://localhost:8888"
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# const DEFAULT_SIGNALLER_URL = "wss://webrtc-signaller.deno.dev:443"
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const DEFAULT_ICE_SERVERS = [
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{ "urls": ["stun:[::1]:3478", "stun:stun.l.google.com:19302"] },
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# { "urls": ["stun:stun.l.google.com:19302"] }, # just google
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# { "urls": ["stun:[::1]:3478"] }, # just localhost
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]
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signal lobby_data(lobbies)
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signal lobby_joined(lobby_and_peer)
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signal lobby_left(id)
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signal lobby_delete(id)
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signal peer_data(peers)
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signal peer_left(id)
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signal peer_init(peer_id)
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signal candidate_received(cand)
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signal offer_received(data)
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signal answer_received(data)
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# webrtc
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signal webrtc_peer_connected(id)
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signal webrtc_peer_disconnected(id)
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signal webrtc_connection_succeeded()
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# websocket
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signal signaller_connected
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signal signaller_connection_failure
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signal signaller_disconnected
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onready var webrtc = WebRTCMultiplayer.new()
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onready var websocket = WebSocketClient.new()
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onready var display_name = DEFAULT_DISPLAY_NAME setget set_display_name
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onready var current_lobby = null
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onready var lobbies = {}
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onready var peers = {}
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onready var signaller_url = DEFAULT_SIGNALLER_URL
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func _init():
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pass
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func _ready():
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display_name = _load_display_name()
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webrtc.connect("connection_succeeded", self, "_webrtc_connection_succeeded")
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webrtc.connect("peer_connected", self, "_webrtc_peer_connected")
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webrtc.connect("peer_disconnected", self, "_webrtc_peer_disconnected")
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websocket.connect("connection_established", self, "_signaller_connected")
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websocket.connect("data_received", self, "_signaller_data")
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websocket.connect("server_close_request", self, "_signaller_close_request")
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websocket.connect("connection_closed", self, "_signaller_closed")
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websocket.connect("connection_error", self, "_signaller_error", [false])
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websocket.connect("connection_failed", self, "_signaller_error", [false])
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print(self)
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print(websocket)
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print(webrtc)
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add_child(websocket)
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add_child(webrtc)
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func connect_to_signaller(url = signaller_url):
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signaller_url = url
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close()
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print("Attempting to connect to WebSocket signalling server at %s" % signaller_url)
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var result = websocket.connect_to_url(signaller_url)
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if result != OK:
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print("Failed to connect to WebSocket signalling server at %s: %s" % [signaller_url, result])
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func close():
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webrtc.close()
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websocket.disconnect_from_host()
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func set_display_name(new_display_name: String):
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display_name = new_display_name
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_send("update_display_name:%s" % display_name)
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func request_lobby_list():
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return _send("request_lobby_list")
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func join_lobby(id: String):
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return _send("lobby_join:%s" % id)
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func create_lobby():
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return _send("lobby_create")
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func is_host(): return get_tree().get_network_unique_id() == 1
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func set_lobby_name(s: String):
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if is_host(): _send_json({"name": s}, "update_lobby")
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func lock_lobby():
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if is_host(): _send_json({"locked": true}, "update_lobby")
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func set_lobby_max_players(n: int):
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if is_host(): _send_json({"maxPlayers": n}, "update_lobby")
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func request_peer_list(): _send("request_peer_list")
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func send_candidate(id, mid, index, sdp) -> int:
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return _send_json({"id": id, "mid": mid, "index": index, "sdp": sdp}, "candidate")
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func send_offer(id, offer) -> int:
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return _send_json({"id": id, "offer": offer }, "offer")
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func send_answer(id, answer) -> int:
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return _send_json({"id": id, "answer": answer }, "answer")
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func _webrtc_peer_connected(id):
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emit_signal("webrtc_peer_connected", id)
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func _webrtc_peer_disconnected(id):
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emit_signal("webrtc_peer_disconnected", id)
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func _webrtc_connection_succeeded():
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emit_signal("webrtc_connection_succeeded")
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func _signaller_error(err):
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print("WebSocket error: %s" % err)
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emit_signal("signaller_connection_failure")
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_signaller_closed(err)
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func _signaller_closed(code):
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print("WebSocket closed: %s: " % code)
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emit_signal("signaller_disconnected")
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func _signaller_close_request(code: int, reason: String):
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print("Received WebSocket close request from signalling server - Code: %s, Reason: %s" % [code, reason])
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# TODO: does this fire _closed?
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func _signaller_connected(protocol = ""):
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print("Signaller connected via WebSocket using protocol %s" % protocol)
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websocket.get_peer(1).set_write_mode(WebSocketPeer.WRITE_MODE_TEXT)
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emit_signal("signaller_connected")
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_send_json({name = display_name}, "init")
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func _process(_delta: float):
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var status: int = websocket.get_connection_status()
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if status == WebSocketClient.CONNECTION_CONNECTED or status == WebSocketClient.CONNECTION_CONNECTING:
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websocket.poll()
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func _signaller_data():
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var msg: String = websocket.get_peer(1).get_packet().get_string_from_utf8()
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if msg.begins_with("json:"):
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var data = JSON.parse(msg.substr(5))
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if data.error == OK:
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_process_signaller_message(data.result)
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var _result = websocket.get_peer(1).put_packet("".to_utf8())
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else:
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var d = msg.split(":", false, 2)
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_process_signaller_message({type = d[0], data = d[1]})
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func _process_signaller_message(data: Dictionary):
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match data["type"]:
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# "init":
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"init_peer":
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webrtc.initialize(int(data.data), true)
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get_tree().network_peer = webrtc
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"lobby_data": emit_signal("lobby_data", data.data)
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"lobby_delete": emit_signal("lobby_delete", data.id)
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"lobby_joined":
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current_lobby = data
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emit_signal("lobby_joined", data)
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"lobby_left": emit_signal("lobby_left", data.id)
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"peer_data": emit_signal("peer_data", [data] if data.has("id") else data.data)
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"peer_left": emit_signal("peer_left", data.data)
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"candidate":
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print("Candidate received - Data: %s" % JSON.print(data))
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emit_signal("candidate_received", data)
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"offer":
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print("Offer received - Data: %s" % JSON.print(data))
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emit_signal("offer_received", data)
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"answer":
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print("Answer received - Data: %s" % JSON.print(data))
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emit_signal("answer_received", data)
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"ping": _send("pong")
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_: print("Unhandled Message - Data: %s" % JSON.print(data))
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func _load_display_name():
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var _display_name = DEFAULT_DISPLAY_NAME
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var display_name_file = File.new()
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if display_name_file.open(DISPLAY_NAME_FILE, File.READ) == OK:
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_display_name = display_name_file.get_as_text()
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else:
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print("Failed to open %s for reading display_name, creating default" % DISPLAY_NAME_FILE)
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_store_display_name()
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display_name_file.close()
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return _display_name
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func _store_display_name():
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var display_name_file = File.new()
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if display_name_file.open(DISPLAY_NAME_FILE, File.WRITE) == OK:
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display_name_file.store_string(display_name)
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else:
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print("Failed to open %s for writing display_name" % DISPLAY_NAME_FILE)
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display_name_file.close()
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func _send(s: String):
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return websocket.get_peer(1).put_packet(s.to_utf8())
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func _send_json(data: Dictionary, type=null):
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if type != null: data["type"] = type
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_send("json:%s" % JSON.print(data))
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