[Net] Modularize multiplayer, expose MultiplayerAPI to extensions.

- RPC configurations are now dictionaries.
- Script.get_rpc_methods renamed to Script.get_rpc_config.
- Node.rpc[_id] and Callable.rpc now return an Error.
- Refactor MultiplayerAPI to allow extension.
- New MultiplayerAPI.rpc method with Array argument (for scripts).
- Move the default MultiplayerAPI implementation to a module.

3 files changed, 8 insertions, 8 deletions

diff --git a/modules/webrtc/doc_classes/WebRTCMultiplayerPeer.xml b/modules/webrtc/doc_classes/WebRTCMultiplayerPeer.xml
index 3996a002ed..df92097135 100644
--- a/modules/webrtc/doc_classes/WebRTCMultiplayerPeer.xml
+++ b/modules/webrtc/doc_classes/WebRTCMultiplayerPeer.xml
@@ -57,7 +57,7 @@
 				Initialize the multiplayer peer with the given [code]peer_id[/code] (must be between 1 and 2147483647).
 				If [code]server_compatibilty[/code] is [code]false[/code] (default), the multiplayer peer will be immediately in state [constant MultiplayerPeer.CONNECTION_CONNECTED] and [signal MultiplayerPeer.connection_succeeded] will not be emitted.
 				If [code]server_compatibilty[/code] is [code]true[/code] the peer will suppress all [signal MultiplayerPeer.peer_connected] signals until a peer with id [constant MultiplayerPeer.TARGET_PEER_SERVER] connects and then emit [signal MultiplayerPeer.connection_succeeded]. After that the signal [signal MultiplayerPeer.peer_connected] will be emitted for every already connected peer, and any new peer that might connect. If the server peer disconnects after that, signal [signal MultiplayerPeer.server_disconnected] will be emitted and state will become [constant MultiplayerPeer.CONNECTION_CONNECTED].
-				You can optionally specify a [code]channels_config[/code] array of [enum TransferMode] which will be used to create extra channels (WebRTC only supports one transfer mode per channel).
+				You can optionally specify a [code]channels_config[/code] array of [enum MultiplayerPeer.TransferMode] which will be used to create extra channels (WebRTC only supports one transfer mode per channel).
 			</description>
 		</method>
 		<method name="remove_peer">
diff --git a/modules/webrtc/webrtc_multiplayer_peer.cpp b/modules/webrtc/webrtc_multiplayer_peer.cpp
index 6f68b84ad3..e03b6b2473 100644
--- a/modules/webrtc/webrtc_multiplayer_peer.cpp
+++ b/modules/webrtc/webrtc_multiplayer_peer.cpp
@@ -197,14 +197,14 @@ Error WebRTCMultiplayerPeer::initialize(int p_self_id, bool p_server_compat, Arr
 		cfg["ordered"] = true;
 
 		switch (mode) {
-			case Multiplayer::TRANSFER_MODE_UNRELIABLE_ORDERED:
+			case TRANSFER_MODE_UNRELIABLE_ORDERED:
 				cfg["maxPacketLifetime"] = 1;
 				break;
-			case Multiplayer::TRANSFER_MODE_UNRELIABLE:
+			case TRANSFER_MODE_UNRELIABLE:
 				cfg["maxPacketLifetime"] = 1;
 				cfg["ordered"] = false;
 				break;
-			case Multiplayer::TRANSFER_MODE_RELIABLE:
+			case TRANSFER_MODE_RELIABLE:
 				break;
 			default:
 				ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, vformat("The 'channels_config' array must contain only enum values from 'MultiplayerPeer.Multiplayer::TransferMode'. Got: %d", mode));
@@ -339,13 +339,13 @@ Error WebRTCMultiplayerPeer::put_packet(const uint8_t *p_buffer, int p_buffer_si
 	int ch = get_transfer_channel();
 	if (ch == 0) {
 		switch (get_transfer_mode()) {
-			case Multiplayer::TRANSFER_MODE_RELIABLE:
+			case TRANSFER_MODE_RELIABLE:
 				ch = CH_RELIABLE;
 				break;
-			case Multiplayer::TRANSFER_MODE_UNRELIABLE_ORDERED:
+			case TRANSFER_MODE_UNRELIABLE_ORDERED:
 				ch = CH_ORDERED;
 				break;
-			case Multiplayer::TRANSFER_MODE_UNRELIABLE:
+			case TRANSFER_MODE_UNRELIABLE:
 				ch = CH_UNRELIABLE;
 				break;
 		}
diff --git a/modules/webrtc/webrtc_multiplayer_peer.h b/modules/webrtc/webrtc_multiplayer_peer.h
index d4ed7ef7de..ea7c60036b 100644
--- a/modules/webrtc/webrtc_multiplayer_peer.h
+++ b/modules/webrtc/webrtc_multiplayer_peer.h
@@ -31,7 +31,7 @@
 #ifndef WEBRTC_MULTIPLAYER_PEER_H
 #define WEBRTC_MULTIPLAYER_PEER_H
 
-#include "core/multiplayer/multiplayer_peer.h"
+#include "scene/main/multiplayer_peer.h"
 #include "webrtc_peer_connection.h"
 
 class WebRTCMultiplayerPeer : public MultiplayerPeer {