test implement webrtc

src/scripts/webrtc_network.gd

@@ -0,0 +1,141 @@
+extends Node
+
+# WebRTC Network Manager - For browser/WebAssembly builds
+# Uses WebRTCMultiplayerPeer for P2P connections
+
+signal connection_ready
+signal connection_failed
+signal session_created(session_data)
+signal peer_connected_webrtc(peer_id)
+signal peer_disconnected_webrtc(peer_id)
+
+const STUN_SERVER = "stun:ruinborn.thefirstboss.com:3578"
+
+var webrtc_peer: WebRTCMultiplayerPeer = null
+var is_host: bool = false
+
+func _ready():
+	print("WebRTC: Using STUN server: ", STUN_SERVER)
+
+func create_host() -> bool:
+	print("WebRTC: Creating host")
+	webrtc_peer = WebRTCMultiplayerPeer.new()
+	
+	# Godot 4.x API: initialize(peer_id, server_compat)
+	# peer_id 1 for server, server_compat = true
+	var error = webrtc_peer.initialize(1, true)
+	if error != OK:
+		push_error("WebRTC: Failed to initialize server: " + str(error))
+		return false
+	
+	multiplayer.multiplayer_peer = webrtc_peer
+	is_host = true
+	
+	# Connect signals
+	webrtc_peer.peer_connected.connect(_on_peer_connected)
+	webrtc_peer.peer_disconnected.connect(_on_peer_disconnected)
+	
+	print("WebRTC: Host initialized successfully")
+	connection_ready.emit()
+	return true
+
+func create_client() -> bool:
+	print("WebRTC: Creating client")
+	webrtc_peer = WebRTCMultiplayerPeer.new()
+	
+	# Godot 4.x API: initialize(peer_id, server_compat)
+	# peer_id 0 for auto-assign, server_compat = false for client
+	var error = webrtc_peer.initialize(0, false)
+	if error != OK:
+		push_error("WebRTC: Failed to initialize client: " + str(error))
+		return false
+	
+	multiplayer.multiplayer_peer = webrtc_peer
+	is_host = false
+	
+	# Connect signals
+	webrtc_peer.peer_connected.connect(_on_peer_connected)
+	webrtc_peer.peer_disconnected.connect(_on_peer_disconnected)
+	
+	print("WebRTC: Client initialized successfully")
+	connection_ready.emit()
+	return true
+
+func create_mesh(peer_id: int) -> bool:
+	print("WebRTC: Creating mesh peer for ID ", peer_id)
+	if not webrtc_peer:
+		push_error("WebRTC: Peer not initialized")
+		return false
+	
+	# Create peer connection with STUN server configured
+	var peer_connection = WebRTCPeerConnection.new()
+	
+	# Configure STUN server for NAT traversal
+	var config = {
+		"iceServers": [
+			{
+				"urls": [STUN_SERVER]
+			}
+		]
+	}
+	
+	var init_error = peer_connection.initialize(config)
+	if init_error != OK:
+		push_error("WebRTC: Failed to initialize peer connection: " + str(init_error))
+		return false
+	
+	var error = webrtc_peer.add_peer(peer_connection, peer_id)
+	
+	if error != OK:
+		push_error("WebRTC: Failed to add peer: " + str(error))
+		return false
+	
+	print("WebRTC: Mesh peer created for ID ", peer_id, " with STUN server")
+	return true
+
+# Get the local session description (offer or answer) to share with remote peer
+func get_local_session() -> String:
+	if not webrtc_peer:
+		return ""
+	
+	# Get all connection states and session descriptions
+	var session_data = {}
+	
+	# For host, we need to create offers for each connected peer
+	# For client, we need to create an answer
+	
+	# Note: WebRTCMultiplayerPeer handles this internally
+	# We just need to get the peer connection for manual signaling
+	
+	# This is a simplified approach - for full WebRTC, you'd need to:
+	# 1. Create RTCPeerConnection
+	# 2. Create offer/answer
+	# 3. Exchange ICE candidates
+	
+	# For now, return empty - we'll use a signaling server approach instead
+	return ""
+
+# Set the remote session description from another peer
+func set_remote_session(session_data: String) -> bool:
+	if not webrtc_peer:
+		return false
+	
+	# Parse and apply remote session
+	# This would involve SDP parsing and ICE candidate exchange
+	
+	return true
+
+func _on_peer_connected(id: int):
+	print("WebRTC: Peer connected: ", id)
+	peer_connected_webrtc.emit(id)
+
+func _on_peer_disconnected(id: int):
+	print("WebRTC: Peer disconnected: ", id)
+	peer_disconnected_webrtc.emit(id)
+
+func close_connection():
+	if webrtc_peer:
+		webrtc_peer.close()
+		webrtc_peer = null
+	multiplayer.multiplayer_peer = null
+	is_host = false