moved network interface

src/blitz/godot/NetworkInterface.cpp

@@ -0,0 +1,129 @@
+#include <blitz/godot/NetworkInterface.h>
+
+#include <blitz/protocol/PacketFactory.h>
+#include <blitz/protocol/PacketSerializer.h>
+#include <godot_cpp/classes/e_net_multiplayer_peer.hpp>
+#include <godot_cpp/classes/multiplayer_api.hpp>
+#include <godot_cpp/classes/packed_scene.hpp>
+#include <godot_cpp/classes/resource_loader.hpp>
+#include <godot_cpp/variant/utility_functions.hpp>
+
+namespace blitz {
+
+static const char ServerScenePath[] = "res://Scenes/Network/server.tscn";
+
+using namespace godot;
+
+void NetworkInterface::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("RecievePacketDataReliable", "a_PacketData"), &NetworkInterface::RecievePacketDataReliable);
+
+	// server
+	ADD_SIGNAL(MethodInfo("player_connected", PropertyInfo(Variant::INT, "peer_id")));
+	ADD_SIGNAL(MethodInfo("player_disconnected", PropertyInfo(Variant::INT, "peer_id")));
+
+	// client
+	ADD_SIGNAL(MethodInfo("server_disconnected"));
+	ADD_SIGNAL(MethodInfo("local_player_connected"));
+
+	protocol::PacketFactory::Init();
+}
+
+NetworkInterface::NetworkInterface() {}
+
+NetworkInterface::~NetworkInterface() {}
+
+void NetworkInterface::_ready() {
+	// TODO: unreliable
+	Dictionary config;
+	config["rpc_mode"] = MultiplayerAPI::RPC_MODE_ANY_PEER;
+	config["transfer_mode"] = MultiplayerPeer::TRANSFER_MODE_RELIABLE;
+	config["call_local"] = true;
+	config["channel"] = 0;
+	rpc_config("RecievePacketDataReliable", config);
+
+	get_multiplayer()->connect("peer_connected", callable_mp(this, &NetworkInterface::OnPlayerConnected));
+	get_multiplayer()->connect("peer_disconnected", callable_mp(this, &NetworkInterface::OnPlayerDisconnected));
+	get_multiplayer()->connect("connected_to_server", callable_mp(this, &NetworkInterface::OnConnectOk));
+	get_multiplayer()->connect("connection_failed", callable_mp(this, &NetworkInterface::OnConnectFail));
+	get_multiplayer()->connect("server_disconnected", callable_mp(this, &NetworkInterface::OnServerDisconnected));
+}
+
+void NetworkInterface::BroadcastPacket(const protocol::Packet& a_Packet) {
+	PackedByteArray byteArray = protocol::PacketSerializer::Serialize(a_Packet);
+	rpc("RecievePacketDataReliable", byteArray);
+}
+
+void NetworkInterface::SendPacket(PeerID a_Peer, const protocol::Packet& a_Packet) {
+	PackedByteArray byteArray = protocol::PacketSerializer::Serialize(a_Packet);
+	rpc_id(a_Peer, "RecievePacketDataReliable", byteArray);
+}
+
+void NetworkInterface::RecievePacketDataReliable(godot::PackedByteArray a_PacketData) {
+	auto packet = protocol::PacketSerializer::Deserialize(a_PacketData);
+	if (packet) {
+		packet->m_Sender = get_multiplayer()->get_remote_sender_id();
+		Dispatch(*packet);
+	}
+}
+
+Error NetworkInterface::JoinGame(const String& a_Address, uint16_t a_Port) {
+	auto* peer = memnew(ENetMultiplayerPeer);
+	Error error = peer->create_client(a_Address, a_Port);
+	if (error) {
+		OnConnectFail();
+		return error;
+	}
+
+	get_multiplayer()->set_multiplayer_peer(peer);
+	return Error::OK;
+}
+
+Error NetworkInterface::CreateGame(uint16_t a_Port, bool a_Dedicated) {
+	auto* peer = memnew(ENetMultiplayerPeer);
+	Error error = peer->create_server(a_Port);
+	if (error)
+		return error;
+
+	get_multiplayer()->set_multiplayer_peer(peer);
+
+	Ref<PackedScene> serverScene = ResourceLoader::get_singleton()->load(ServerScenePath);
+	add_child(serverScene->instantiate());
+
+	if (!a_Dedicated) {
+		emit_signal("local_player_connected");
+		emit_signal("player_connected", get_multiplayer()->get_unique_id());
+	}
+
+	return Error::OK;
+}
+
+void NetworkInterface::OnPlayerConnected(PeerID a_PeerId) {
+	emit_signal("player_connected", a_PeerId);
+}
+
+void NetworkInterface::OnPlayerDisconnected(PeerID a_PeerId) {
+	emit_signal("player_disconnected", a_PeerId);
+}
+
+void NetworkInterface::OnConnectOk() {
+	emit_signal("local_player_connected");
+}
+
+void NetworkInterface::OnConnectFail() {
+	ShutdownNetwork();
+	emit_signal("server_disconnected");
+}
+
+void NetworkInterface::OnServerDisconnected() {
+	ShutdownNetwork();
+	emit_signal("server_disconnected");
+}
+
+void NetworkInterface::ShutdownNetwork() {
+	get_multiplayer()->set_multiplayer_peer(nullptr);
+	if (auto* server = find_child("Server")) {
+		server->queue_free();
+	}
+}
+
+}  // namespace blitz