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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
225 lines
8.9 KiB
C++
225 lines
8.9 KiB
C++
/**************************************************************************/
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/* multiplayer_peer.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "multiplayer_peer.h"
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#include "core/os/os.h"
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uint32_t MultiplayerPeer::generate_unique_id() const {
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uint32_t hash = 0;
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while (hash == 0 || hash == 1) {
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hash = hash_murmur3_one_32(
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(uint32_t)OS::get_singleton()->get_ticks_usec());
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hash = hash_murmur3_one_32(
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(uint32_t)OS::get_singleton()->get_unix_time(), hash);
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hash = hash_murmur3_one_32(
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(uint32_t)OS::get_singleton()->get_user_data_dir().hash64(), hash);
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hash = hash_murmur3_one_32(
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(uint32_t)((uint64_t)this), hash); // Rely on ASLR heap
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hash = hash_murmur3_one_32(
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(uint32_t)((uint64_t)&hash), hash); // Rely on ASLR stack
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hash = hash_fmix32(hash);
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hash = hash & 0x7FFFFFFF; // Make it compatible with unsigned, since negative ID is used for exclusion
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}
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return hash;
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}
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void MultiplayerPeer::set_transfer_channel(int p_channel) {
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transfer_channel = p_channel;
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}
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int MultiplayerPeer::get_transfer_channel() const {
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return transfer_channel;
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}
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void MultiplayerPeer::set_transfer_mode(TransferMode p_mode) {
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transfer_mode = p_mode;
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}
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MultiplayerPeer::TransferMode MultiplayerPeer::get_transfer_mode() const {
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return transfer_mode;
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}
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void MultiplayerPeer::set_refuse_new_connections(bool p_enable) {
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refuse_connections = p_enable;
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}
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bool MultiplayerPeer::is_refusing_new_connections() const {
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return refuse_connections;
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}
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bool MultiplayerPeer::is_server_relay_supported() const {
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return false;
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}
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void MultiplayerPeer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_transfer_channel", "channel"), &MultiplayerPeer::set_transfer_channel);
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ClassDB::bind_method(D_METHOD("get_transfer_channel"), &MultiplayerPeer::get_transfer_channel);
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ClassDB::bind_method(D_METHOD("set_transfer_mode", "mode"), &MultiplayerPeer::set_transfer_mode);
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ClassDB::bind_method(D_METHOD("get_transfer_mode"), &MultiplayerPeer::get_transfer_mode);
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ClassDB::bind_method(D_METHOD("set_target_peer", "id"), &MultiplayerPeer::set_target_peer);
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ClassDB::bind_method(D_METHOD("get_packet_peer"), &MultiplayerPeer::get_packet_peer);
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ClassDB::bind_method(D_METHOD("get_packet_channel"), &MultiplayerPeer::get_packet_channel);
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ClassDB::bind_method(D_METHOD("get_packet_mode"), &MultiplayerPeer::get_packet_mode);
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ClassDB::bind_method(D_METHOD("poll"), &MultiplayerPeer::poll);
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ClassDB::bind_method(D_METHOD("close"), &MultiplayerPeer::close);
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ClassDB::bind_method(D_METHOD("disconnect_peer", "peer", "force"), &MultiplayerPeer::disconnect_peer, DEFVAL(false));
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ClassDB::bind_method(D_METHOD("get_connection_status"), &MultiplayerPeer::get_connection_status);
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ClassDB::bind_method(D_METHOD("get_unique_id"), &MultiplayerPeer::get_unique_id);
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ClassDB::bind_method(D_METHOD("generate_unique_id"), &MultiplayerPeer::generate_unique_id);
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ClassDB::bind_method(D_METHOD("set_refuse_new_connections", "enable"), &MultiplayerPeer::set_refuse_new_connections);
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ClassDB::bind_method(D_METHOD("is_refusing_new_connections"), &MultiplayerPeer::is_refusing_new_connections);
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ClassDB::bind_method(D_METHOD("is_server_relay_supported"), &MultiplayerPeer::is_server_relay_supported);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "refuse_new_connections"), "set_refuse_new_connections", "is_refusing_new_connections");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "transfer_mode", PROPERTY_HINT_ENUM, "Unreliable,Unreliable Ordered,Reliable"), "set_transfer_mode", "get_transfer_mode");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "transfer_channel", PROPERTY_HINT_RANGE, "0,255,1"), "set_transfer_channel", "get_transfer_channel");
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BIND_ENUM_CONSTANT(CONNECTION_DISCONNECTED);
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BIND_ENUM_CONSTANT(CONNECTION_CONNECTING);
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BIND_ENUM_CONSTANT(CONNECTION_CONNECTED);
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BIND_CONSTANT(TARGET_PEER_BROADCAST);
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BIND_CONSTANT(TARGET_PEER_SERVER);
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BIND_ENUM_CONSTANT(TRANSFER_MODE_UNRELIABLE);
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BIND_ENUM_CONSTANT(TRANSFER_MODE_UNRELIABLE_ORDERED);
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BIND_ENUM_CONSTANT(TRANSFER_MODE_RELIABLE);
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ADD_SIGNAL(MethodInfo("peer_connected", PropertyInfo(Variant::INT, "id")));
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ADD_SIGNAL(MethodInfo("peer_disconnected", PropertyInfo(Variant::INT, "id")));
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}
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/*************/
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Error MultiplayerPeerExtension::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
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Error err;
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if (GDVIRTUAL_CALL(_get_packet, r_buffer, &r_buffer_size, err)) {
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return err;
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}
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if (GDVIRTUAL_IS_OVERRIDDEN(_get_packet_script)) {
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if (!GDVIRTUAL_CALL(_get_packet_script, script_buffer)) {
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return FAILED;
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}
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if (script_buffer.size() == 0) {
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return Error::ERR_UNAVAILABLE;
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}
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*r_buffer = script_buffer.ptr();
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r_buffer_size = script_buffer.size();
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return Error::OK;
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}
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WARN_PRINT_ONCE("MultiplayerPeerExtension::_get_packet_native is unimplemented!");
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return FAILED;
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}
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Error MultiplayerPeerExtension::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
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Error err;
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if (GDVIRTUAL_CALL(_put_packet, p_buffer, p_buffer_size, err)) {
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return err;
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}
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if (GDVIRTUAL_IS_OVERRIDDEN(_put_packet_script)) {
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PackedByteArray a;
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a.resize(p_buffer_size);
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memcpy(a.ptrw(), p_buffer, p_buffer_size);
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if (!GDVIRTUAL_CALL(_put_packet_script, a, err)) {
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return FAILED;
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}
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return (Error)err;
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}
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WARN_PRINT_ONCE("MultiplayerPeerExtension::_put_packet_native is unimplemented!");
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return FAILED;
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}
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void MultiplayerPeerExtension::set_refuse_new_connections(bool p_enable) {
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if (GDVIRTUAL_CALL(_set_refuse_new_connections, p_enable)) {
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return;
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}
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MultiplayerPeer::set_refuse_new_connections(p_enable);
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}
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bool MultiplayerPeerExtension::is_refusing_new_connections() const {
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bool refusing;
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if (GDVIRTUAL_CALL(_is_refusing_new_connections, refusing)) {
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return refusing;
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}
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return MultiplayerPeer::is_refusing_new_connections();
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}
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bool MultiplayerPeerExtension::is_server_relay_supported() const {
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bool can_relay;
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if (GDVIRTUAL_CALL(_is_server_relay_supported, can_relay)) {
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return can_relay;
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}
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return MultiplayerPeer::is_server_relay_supported();
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}
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void MultiplayerPeerExtension::_bind_methods() {
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GDVIRTUAL_BIND(_get_packet, "r_buffer", "r_buffer_size");
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GDVIRTUAL_BIND(_put_packet, "p_buffer", "p_buffer_size");
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GDVIRTUAL_BIND(_get_available_packet_count);
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GDVIRTUAL_BIND(_get_max_packet_size);
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GDVIRTUAL_BIND(_get_packet_script)
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GDVIRTUAL_BIND(_put_packet_script, "p_buffer");
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GDVIRTUAL_BIND(_set_transfer_channel, "p_channel");
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GDVIRTUAL_BIND(_get_transfer_channel);
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GDVIRTUAL_BIND(_set_transfer_mode, "p_mode");
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GDVIRTUAL_BIND(_get_transfer_mode);
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GDVIRTUAL_BIND(_set_target_peer, "p_peer");
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GDVIRTUAL_BIND(_get_packet_peer);
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GDVIRTUAL_BIND(_is_server);
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GDVIRTUAL_BIND(_poll);
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GDVIRTUAL_BIND(_close);
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GDVIRTUAL_BIND(_disconnect_peer, "p_peer", "p_force");
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GDVIRTUAL_BIND(_get_unique_id);
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GDVIRTUAL_BIND(_set_refuse_new_connections, "p_enable");
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GDVIRTUAL_BIND(_is_refusing_new_connections);
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GDVIRTUAL_BIND(_get_connection_status);
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ADD_PROPERTY_DEFAULT("transfer_mode", TRANSFER_MODE_RELIABLE);
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ADD_PROPERTY_DEFAULT("transfer_channel", 0);
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}
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