godot-demo-projects/networking/webrtc_minimal/chat.gd

extends Node
# An example p2p chat client.

var peer = WebRTCPeerConnection.new()

# Create negotiated data channel.
var channel = peer.create_data_channel("chat", {"negotiated": true, "id": 1})

func _ready():
	# Connect all functions.
	peer.connect("ice_candidate_created", self, "_on_ice_candidate")
	peer.connect("session_description_created", self, "_on_session")

	# Register to the local signaling server (see below for the implementation).
	Signaling.register(get_path())


func _on_ice_candidate(mid, index, sdp):
	# Send the ICE candidate to the other peer via signaling server.
	Signaling.send_candidate(get_path(), mid, index, sdp)


func _on_session(type, sdp):
	# Send the session to other peer via signaling server.
	Signaling.send_session(get_path(), type, sdp)
	# Set generated description as local.
	peer.set_local_description(type, sdp)


func _process(delta):
	# Always poll the connection frequently.
	peer.poll()
	if channel.get_ready_state() == WebRTCDataChannel.STATE_OPEN:
		while channel.get_available_packet_count() > 0:
			print(get_path(), " received: ", channel.get_packet().get_string_from_utf8())


func send_message(message):
	channel.put_packet(message.to_utf8())