118 lines
3.9 KiB
GDScript
118 lines
3.9 KiB
GDScript
extends Node
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"""
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This module sets up WebRTC peer connections.
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"""
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# var multiplayer_url = "wss://webrtc-signaller.deno.dev:443"
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var multiplayer_url = "ws://localhost:8888"
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# var multiplayer_url = "ws://echo.websocket.org"
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var webrtc_ice_servers = [
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{ "urls": ["stun:stun.l.google.com:19302"] },
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# { "urls": ["stun:localhost:3478"] }
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]
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const SignallerClient = preload("signaller_client.gd")
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onready var mp = WebRTCMultiplayer.new()
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onready var signaller = SignallerClient.new()
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func _ready():
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signaller.connect("offer_received", self, "offer_received")
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signaller.connect("answer_received", self, "answer_received")
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signaller.connect("candidate_received", self, "candidate_received")
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# signaller.connect("websocket_connected", self, "connected")
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# signaller.connect("websocket_disconnected", self, "disconnected")
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signaller.connect("peer_id_set", self, "_peer_id_set")
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signaller.connect("peer_joined", self, "_peer_joined")
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# mp.connect("peer_disconnected", self, "peer_disconnected")
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# connect("lobby_sealed", self, "lobby_sealed")
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add_child(signaller)
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func fake_singleplayer():
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print("Faking network peer for singleplayer...")
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mp.initialize(1, true)
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get_tree().network_peer = mp
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var peer: WebRTCPeerConnection = WebRTCPeerConnection.new()
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peer.initialize()
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mp.add_peer(peer, 1)
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func close():
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mp.close()
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signaller.close()
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func connect_to_signaller():
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close()
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signaller.connect_to_websocket_signaller(multiplayer_url)
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func _create_peer(peer_id):
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# if peer_id == signaller.peer_id: return
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var peer: WebRTCPeerConnection = WebRTCPeerConnection.new()
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print("New Net Peer with peer_id %d" % [peer_id])
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var _peer_init_results = peer.initialize({"iceServers": webrtc_ice_servers})
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var _result = peer.connect("session_description_created", self, "_offer_created", [peer_id])
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_result = peer.connect("ice_candidate_created", self, "_new_ice_candidate", [peer_id])
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mp.add_peer(peer, peer_id)
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var uid = mp.get_unique_id()
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if peer_id > uid:
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var offer_result = peer.create_offer()
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print("Create Offer Result: %s" % offer_result)
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else:
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print("Did not create offer: %d <= %d" % [peer_id, uid])
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return peer
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func _new_ice_candidate(mid_name, index_name, sdp_name, peer_id):
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print("New ICE Candidate - MID: %s, Index: %s, SDP: %s, PeerID: %s" % [mid_name, index_name, sdp_name, peer_id])
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signaller.send_candidate(peer_id, mid_name, index_name, sdp_name)
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func _offer_created(type, data, peer_id):
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print("Offer created - Type: %s, PeerID: %s, Data: %s" % [type, peer_id, JSON.print(data)])
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if not mp.has_peer(peer_id):
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return
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mp.get_peer(peer_id).connection.set_local_description(type, data)
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if type == "offer":
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signaller.send_offer(peer_id, data)
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else:
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signaller.send_answer(peer_id, data)
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func _peer_id_set(peer_id):
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print("Peer ID received %s - setting up to peer..." % [peer_id])
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mp.initialize(peer_id, true)
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get_tree().network_peer = mp
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func _peer_joined(peers):
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for i in range(len(peers)):
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var peer = peers[i]
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if peer.has("peerId"):
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var peer_id = peer["peerId"]
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if not mp.has_peer(peer_id):
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_create_peer(peer_id)
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func peer_disconnected(id):
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print("Peer %s disconnected" % id)
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if mp.has_peer(id):
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mp.remove_peer(id)
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func offer_received(data):
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var id = data["peerId"]
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if mp.has_peer(id):
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print("Setting offer remote description: %s" % JSON.print(data))
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mp.get_peer(id).connection.set_remote_description("offer", data["offer"])
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else:
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print("Received an offer for a peer with ID %s that hasn't been added" % id)
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func answer_received(data):
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var id = data["peerId"]
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if mp.has_peer(id):
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print("Setting answer remote description: %s" % JSON.print(data))
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mp.get_peer(id).connection.set_remote_description("answer", data["answer"])
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func candidate_received(data):
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var id = data["peerId"]
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if mp.has_peer(id):
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print("Adding ice candidate: %s" % JSON.print(data))
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mp.get_peer(id).connection.add_ice_candidate(data["mid"], data["index"], data["sdp"])
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else:
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print("Received candidate for non-existant peer %s" % id)
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