1e8bf86379
Used by ENetMultiplayerPeer and WebSocketServer to generate network IDs, and exposed to the user for p2p networks (e.g. WebRTCMultiplayerPeer) and custom MultiplayerPeer implementations.
91 lines
4.8 KiB
C++
91 lines
4.8 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) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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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_djb2_one_32(
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(uint32_t)OS::get_singleton()->get_ticks_usec());
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hash = hash_djb2_one_32(
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(uint32_t)OS::get_singleton()->get_unix_time(), hash);
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hash = hash_djb2_one_32(
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(uint32_t)OS::get_singleton()->get_user_data_dir().hash64(), hash);
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hash = hash_djb2_one_32(
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(uint32_t)((uint64_t)this), hash); // Rely on ASLR heap
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hash = hash_djb2_one_32(
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(uint32_t)((uint64_t)&hash), hash); // Rely on ASLR stack
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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::_bind_methods() {
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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("poll"), &MultiplayerPeer::poll);
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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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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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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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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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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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ADD_SIGNAL(MethodInfo("server_disconnected"));
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ADD_SIGNAL(MethodInfo("connection_succeeded"));
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ADD_SIGNAL(MethodInfo("connection_failed"));
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}
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