diff options
author | Fabio Alessandrelli <fabio.alessandrelli@gmail.com> | 2021-07-12 16:26:37 +0200 |
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committer | Fabio Alessandrelli <fabio.alessandrelli@gmail.com> | 2021-07-12 16:36:34 +0200 |
commit | 97e763dddf6aad72b7dd05ad52dfe16cecc1f221 (patch) | |
tree | d8b3f03abeeb8b0a12a1a3b2432b9c79e7351e53 /modules/webrtc/webrtc_multiplayer.cpp | |
parent | b31e8530b25b0ec3315df4e6354ab0186bf9f3b0 (diff) |
[Net] Rename WebRTCMultiplayer to WebRTCMultiplayerPeer.
Diffstat (limited to 'modules/webrtc/webrtc_multiplayer.cpp')
-rw-r--r-- | modules/webrtc/webrtc_multiplayer.cpp | 392 |
1 files changed, 0 insertions, 392 deletions
diff --git a/modules/webrtc/webrtc_multiplayer.cpp b/modules/webrtc/webrtc_multiplayer.cpp deleted file mode 100644 index 019ac890b8..0000000000 --- a/modules/webrtc/webrtc_multiplayer.cpp +++ /dev/null @@ -1,392 +0,0 @@ -/*************************************************************************/ -/* webrtc_multiplayer.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ - -#include "webrtc_multiplayer.h" - -#include "core/io/marshalls.h" -#include "core/os/os.h" - -void WebRTCMultiplayer::_bind_methods() { - ClassDB::bind_method(D_METHOD("initialize", "peer_id", "server_compatibility"), &WebRTCMultiplayer::initialize, DEFVAL(false)); - ClassDB::bind_method(D_METHOD("add_peer", "peer", "peer_id", "unreliable_lifetime"), &WebRTCMultiplayer::add_peer, DEFVAL(1)); - ClassDB::bind_method(D_METHOD("remove_peer", "peer_id"), &WebRTCMultiplayer::remove_peer); - ClassDB::bind_method(D_METHOD("has_peer", "peer_id"), &WebRTCMultiplayer::has_peer); - ClassDB::bind_method(D_METHOD("get_peer", "peer_id"), &WebRTCMultiplayer::get_peer); - ClassDB::bind_method(D_METHOD("get_peers"), &WebRTCMultiplayer::get_peers); - ClassDB::bind_method(D_METHOD("close"), &WebRTCMultiplayer::close); -} - -void WebRTCMultiplayer::set_transfer_mode(TransferMode p_mode) { - transfer_mode = p_mode; -} - -MultiplayerPeer::TransferMode WebRTCMultiplayer::get_transfer_mode() const { - return transfer_mode; -} - -void WebRTCMultiplayer::set_target_peer(int p_peer_id) { - target_peer = p_peer_id; -} - -/* Returns the ID of the MultiplayerPeer who sent the most recent packet: */ -int WebRTCMultiplayer::get_packet_peer() const { - return next_packet_peer; -} - -bool WebRTCMultiplayer::is_server() const { - return unique_id == TARGET_PEER_SERVER; -} - -void WebRTCMultiplayer::poll() { - if (peer_map.size() == 0) { - return; - } - - List<int> remove; - List<int> add; - for (Map<int, Ref<ConnectedPeer>>::Element *E = peer_map.front(); E; E = E->next()) { - Ref<ConnectedPeer> peer = E->get(); - peer->connection->poll(); - // Check peer state - switch (peer->connection->get_connection_state()) { - case WebRTCPeerConnection::STATE_NEW: - case WebRTCPeerConnection::STATE_CONNECTING: - // Go to next peer, not ready yet. - continue; - case WebRTCPeerConnection::STATE_CONNECTED: - // Good to go, go ahead and check channel state. - break; - default: - // Peer is closed or in error state. Got to next peer. - remove.push_back(E->key()); - continue; - } - // Check channels state - int ready = 0; - for (List<Ref<WebRTCDataChannel>>::Element *C = peer->channels.front(); C && C->get().is_valid(); C = C->next()) { - Ref<WebRTCDataChannel> ch = C->get(); - switch (ch->get_ready_state()) { - case WebRTCDataChannel::STATE_CONNECTING: - continue; - case WebRTCDataChannel::STATE_OPEN: - ready++; - continue; - default: - // Channel was closed or in error state, remove peer id. - remove.push_back(E->key()); - } - // We got a closed channel break out, the peer will be removed. - break; - } - // This peer has newly connected, and all channels are now open. - if (ready == peer->channels.size() && !peer->connected) { - peer->connected = true; - add.push_back(E->key()); - } - } - // Remove disconnected peers - for (List<int>::Element *E = remove.front(); E; E = E->next()) { - remove_peer(E->get()); - if (next_packet_peer == E->get()) { - next_packet_peer = 0; - } - } - // Signal newly connected peers - for (List<int>::Element *E = add.front(); E; E = E->next()) { - // Already connected to server: simply notify new peer. - // NOTE: Mesh is always connected. - if (connection_status == CONNECTION_CONNECTED) { - emit_signal("peer_connected", E->get()); - } - - // Server emulation mode suppresses peer_conencted until server connects. - if (server_compat && E->get() == TARGET_PEER_SERVER) { - // Server connected. - connection_status = CONNECTION_CONNECTED; - emit_signal("peer_connected", TARGET_PEER_SERVER); - emit_signal("connection_succeeded"); - // Notify of all previously connected peers - for (Map<int, Ref<ConnectedPeer>>::Element *F = peer_map.front(); F; F = F->next()) { - if (F->key() != 1 && F->get()->connected) { - emit_signal("peer_connected", F->key()); - } - } - break; // Because we already notified of all newly added peers. - } - } - // Fetch next packet - if (next_packet_peer == 0) { - _find_next_peer(); - } -} - -void WebRTCMultiplayer::_find_next_peer() { - Map<int, Ref<ConnectedPeer>>::Element *E = peer_map.find(next_packet_peer); - if (E) { - E = E->next(); - } - // After last. - while (E) { - for (List<Ref<WebRTCDataChannel>>::Element *F = E->get()->channels.front(); F; F = F->next()) { - if (F->get()->get_available_packet_count()) { - next_packet_peer = E->key(); - return; - } - } - E = E->next(); - } - E = peer_map.front(); - // Before last - while (E) { - for (List<Ref<WebRTCDataChannel>>::Element *F = E->get()->channels.front(); F; F = F->next()) { - if (F->get()->get_available_packet_count()) { - next_packet_peer = E->key(); - return; - } - } - if (E->key() == (int)next_packet_peer) { - break; - } - E = E->next(); - } - // No packet found - next_packet_peer = 0; -} - -void WebRTCMultiplayer::set_refuse_new_connections(bool p_enable) { - refuse_connections = p_enable; -} - -bool WebRTCMultiplayer::is_refusing_new_connections() const { - return refuse_connections; -} - -MultiplayerPeer::ConnectionStatus WebRTCMultiplayer::get_connection_status() const { - return connection_status; -} - -Error WebRTCMultiplayer::initialize(int p_self_id, bool p_server_compat) { - ERR_FAIL_COND_V(p_self_id < 0 || p_self_id > ~(1 << 31), ERR_INVALID_PARAMETER); - unique_id = p_self_id; - server_compat = p_server_compat; - - // Mesh and server are always connected - if (!server_compat || p_self_id == 1) { - connection_status = CONNECTION_CONNECTED; - } else { - connection_status = CONNECTION_CONNECTING; - } - return OK; -} - -int WebRTCMultiplayer::get_unique_id() const { - ERR_FAIL_COND_V(connection_status == CONNECTION_DISCONNECTED, 1); - return unique_id; -} - -void WebRTCMultiplayer::_peer_to_dict(Ref<ConnectedPeer> p_connected_peer, Dictionary &r_dict) { - Array channels; - for (List<Ref<WebRTCDataChannel>>::Element *F = p_connected_peer->channels.front(); F; F = F->next()) { - channels.push_back(F->get()); - } - r_dict["connection"] = p_connected_peer->connection; - r_dict["connected"] = p_connected_peer->connected; - r_dict["channels"] = channels; -} - -bool WebRTCMultiplayer::has_peer(int p_peer_id) { - return peer_map.has(p_peer_id); -} - -Dictionary WebRTCMultiplayer::get_peer(int p_peer_id) { - ERR_FAIL_COND_V(!peer_map.has(p_peer_id), Dictionary()); - Dictionary out; - _peer_to_dict(peer_map[p_peer_id], out); - return out; -} - -Dictionary WebRTCMultiplayer::get_peers() { - Dictionary out; - for (Map<int, Ref<ConnectedPeer>>::Element *E = peer_map.front(); E; E = E->next()) { - Dictionary d; - _peer_to_dict(E->get(), d); - out[E->key()] = d; - } - return out; -} - -Error WebRTCMultiplayer::add_peer(Ref<WebRTCPeerConnection> p_peer, int p_peer_id, int p_unreliable_lifetime) { - ERR_FAIL_COND_V(p_peer_id < 0 || p_peer_id > ~(1 << 31), ERR_INVALID_PARAMETER); - ERR_FAIL_COND_V(p_unreliable_lifetime < 0, ERR_INVALID_PARAMETER); - ERR_FAIL_COND_V(refuse_connections, ERR_UNAUTHORIZED); - // Peer must be valid, and in new state (to create data channels) - ERR_FAIL_COND_V(!p_peer.is_valid(), ERR_INVALID_PARAMETER); - ERR_FAIL_COND_V(p_peer->get_connection_state() != WebRTCPeerConnection::STATE_NEW, ERR_INVALID_PARAMETER); - - Ref<ConnectedPeer> peer = memnew(ConnectedPeer); - peer->connection = p_peer; - - // Initialize data channels - Dictionary cfg; - cfg["negotiated"] = true; - cfg["ordered"] = true; - - cfg["id"] = 1; - peer->channels[CH_RELIABLE] = p_peer->create_data_channel("reliable", cfg); - ERR_FAIL_COND_V(!peer->channels[CH_RELIABLE].is_valid(), FAILED); - - cfg["id"] = 2; - cfg["maxPacketLifetime"] = p_unreliable_lifetime; - peer->channels[CH_ORDERED] = p_peer->create_data_channel("ordered", cfg); - ERR_FAIL_COND_V(!peer->channels[CH_ORDERED].is_valid(), FAILED); - - cfg["id"] = 3; - cfg["ordered"] = false; - peer->channels[CH_UNRELIABLE] = p_peer->create_data_channel("unreliable", cfg); - ERR_FAIL_COND_V(!peer->channels[CH_UNRELIABLE].is_valid(), FAILED); - - peer_map[p_peer_id] = peer; // add the new peer connection to the peer_map - - return OK; -} - -void WebRTCMultiplayer::remove_peer(int p_peer_id) { - ERR_FAIL_COND(!peer_map.has(p_peer_id)); - Ref<ConnectedPeer> peer = peer_map[p_peer_id]; - peer_map.erase(p_peer_id); - if (peer->connected) { - peer->connected = false; - emit_signal("peer_disconnected", p_peer_id); - if (server_compat && p_peer_id == TARGET_PEER_SERVER) { - emit_signal("server_disconnected"); - connection_status = CONNECTION_DISCONNECTED; - } - } -} - -Error WebRTCMultiplayer::get_packet(const uint8_t **r_buffer, int &r_buffer_size) { - // Peer not available - if (next_packet_peer == 0 || !peer_map.has(next_packet_peer)) { - _find_next_peer(); - ERR_FAIL_V(ERR_UNAVAILABLE); - } - for (List<Ref<WebRTCDataChannel>>::Element *E = peer_map[next_packet_peer]->channels.front(); E; E = E->next()) { - if (E->get()->get_available_packet_count()) { - Error err = E->get()->get_packet(r_buffer, r_buffer_size); - _find_next_peer(); - return err; - } - } - // Channels for that peer were empty. Bug? - _find_next_peer(); - ERR_FAIL_V(ERR_BUG); -} - -Error WebRTCMultiplayer::put_packet(const uint8_t *p_buffer, int p_buffer_size) { - ERR_FAIL_COND_V(connection_status == CONNECTION_DISCONNECTED, ERR_UNCONFIGURED); - - int ch = CH_RELIABLE; - switch (transfer_mode) { - case TRANSFER_MODE_RELIABLE: - ch = CH_RELIABLE; - break; - case TRANSFER_MODE_UNRELIABLE_ORDERED: - ch = CH_ORDERED; - break; - case TRANSFER_MODE_UNRELIABLE: - ch = CH_UNRELIABLE; - break; - } - - Map<int, Ref<ConnectedPeer>>::Element *E = nullptr; - - if (target_peer > 0) { - E = peer_map.find(target_peer); - ERR_FAIL_COND_V_MSG(!E, ERR_INVALID_PARAMETER, "Invalid target peer: " + itos(target_peer) + "."); - - ERR_FAIL_COND_V(E->value()->channels.size() <= ch, ERR_BUG); - ERR_FAIL_COND_V(!E->value()->channels[ch].is_valid(), ERR_BUG); - return E->value()->channels[ch]->put_packet(p_buffer, p_buffer_size); - - } else { - int exclude = -target_peer; - - for (Map<int, Ref<ConnectedPeer>>::Element *F = peer_map.front(); F; F = F->next()) { - // Exclude packet. If target_peer == 0 then don't exclude any packets - if (target_peer != 0 && F->key() == exclude) { - continue; - } - - ERR_CONTINUE(F->value()->channels.size() <= ch || !F->value()->channels[ch].is_valid()); - F->value()->channels[ch]->put_packet(p_buffer, p_buffer_size); - } - } - return OK; -} - -int WebRTCMultiplayer::get_available_packet_count() const { - if (next_packet_peer == 0) { - return 0; // To be sure next call to get_packet works if size > 0 . - } - int size = 0; - for (Map<int, Ref<ConnectedPeer>>::Element *E = peer_map.front(); E; E = E->next()) { - for (List<Ref<WebRTCDataChannel>>::Element *F = E->get()->channels.front(); F; F = F->next()) { - size += F->get()->get_available_packet_count(); - } - } - return size; -} - -int WebRTCMultiplayer::get_max_packet_size() const { - return 1200; -} - -void WebRTCMultiplayer::close() { - peer_map.clear(); - unique_id = 0; - next_packet_peer = 0; - target_peer = 0; - connection_status = CONNECTION_DISCONNECTED; -} - -WebRTCMultiplayer::WebRTCMultiplayer() { - unique_id = 0; - next_packet_peer = 0; - target_peer = 0; - client_count = 0; - transfer_mode = TRANSFER_MODE_RELIABLE; - refuse_connections = false; - connection_status = CONNECTION_DISCONNECTED; - server_compat = false; -} - -WebRTCMultiplayer::~WebRTCMultiplayer() { - close(); -} |