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Diffstat (limited to 'modules/enet/enet_multiplayer_peer.h')
| -rw-r--r-- | modules/enet/enet_multiplayer_peer.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/modules/enet/enet_multiplayer_peer.h b/modules/enet/enet_multiplayer_peer.h new file mode 100644 index 0000000000..e6d45eb16a --- /dev/null +++ b/modules/enet/enet_multiplayer_peer.h @@ -0,0 +1,185 @@ +/*************************************************************************/ +/* enet_multiplayer_peer.h */ +/*************************************************************************/ +/* 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. */ +/*************************************************************************/ + +#ifndef NETWORKED_MULTIPLAYER_ENET_H +#define NETWORKED_MULTIPLAYER_ENET_H + +#include "core/crypto/crypto.h" +#include "core/io/compression.h" +#include "core/io/multiplayer_peer.h" + +#include <enet/enet.h> + +class ENetMultiplayerPeer : public MultiplayerPeer { + GDCLASS(ENetMultiplayerPeer, MultiplayerPeer); + +public: + enum CompressionMode { + COMPRESS_NONE, + COMPRESS_RANGE_CODER, + COMPRESS_FASTLZ, + COMPRESS_ZLIB, + COMPRESS_ZSTD + }; + +private: + enum { + SYSMSG_ADD_PEER, + SYSMSG_REMOVE_PEER + }; + + enum { + SYSCH_CONFIG, + SYSCH_RELIABLE, + SYSCH_UNRELIABLE, + SYSCH_MAX + }; + + bool active = false; + bool server = false; + + uint32_t unique_id = 0; + + int target_peer = 0; + TransferMode transfer_mode = TRANSFER_MODE_RELIABLE; + int transfer_channel = -1; + int channel_count = SYSCH_MAX; + bool always_ordered = false; + + ENetEvent event; + ENetPeer *peer = nullptr; + ENetHost *host = nullptr; + + bool refuse_connections = false; + bool server_relay = true; + + ConnectionStatus connection_status = CONNECTION_DISCONNECTED; + + Map<int, ENetPeer *> peer_map; + + struct Packet { + ENetPacket *packet = nullptr; + int from = 0; + int channel = 0; + }; + + CompressionMode compression_mode = COMPRESS_NONE; + + List<Packet> incoming_packets; + + Packet current_packet; + + uint32_t _gen_unique_id() const; + void _pop_current_packet(); + + Vector<uint8_t> src_compressor_mem; + Vector<uint8_t> dst_compressor_mem; + + ENetCompressor enet_compressor; + static size_t enet_compress(void *context, const ENetBuffer *inBuffers, size_t inBufferCount, size_t inLimit, enet_uint8 *outData, size_t outLimit); + static size_t enet_decompress(void *context, const enet_uint8 *inData, size_t inLimit, enet_uint8 *outData, size_t outLimit); + static void enet_compressor_destroy(void *context); + void _setup_compressor(); + + IPAddress bind_ip; + + bool dtls_enabled = false; + Ref<CryptoKey> dtls_key; + Ref<X509Certificate> dtls_cert; + bool dtls_verify = true; + +protected: + static void _bind_methods(); + +public: + virtual void set_transfer_mode(TransferMode p_mode) override; + virtual TransferMode get_transfer_mode() const override; + virtual void set_target_peer(int p_peer) override; + + virtual int get_packet_peer() const override; + + virtual IPAddress get_peer_address(int p_peer_id) const; + virtual int get_peer_port(int p_peer_id) const; + virtual int get_local_port() const; + void set_peer_timeout(int p_peer_id, int p_timeout_limit, int p_timeout_min, int p_timeout_max); + + Error create_server(int p_port, int p_max_clients = 32, int p_in_bandwidth = 0, int p_out_bandwidth = 0); + Error create_client(const String &p_address, int p_port, int p_in_bandwidth = 0, int p_out_bandwidth = 0, int p_local_port = 0); + + void close_connection(uint32_t wait_usec = 100); + + void disconnect_peer(int p_peer, bool now = false); + + virtual void poll() override; + + virtual bool is_server() const override; + + virtual int get_available_packet_count() const override; + virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size) override; ///< buffer is GONE after next get_packet + virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size) override; + + virtual int get_max_packet_size() const override; + + virtual ConnectionStatus get_connection_status() const override; + + virtual void set_refuse_new_connections(bool p_enable) override; + virtual bool is_refusing_new_connections() const override; + + virtual int get_unique_id() const override; + + void set_compression_mode(CompressionMode p_mode); + CompressionMode get_compression_mode() const; + + int get_packet_channel() const; + int get_last_packet_channel() const; + void set_transfer_channel(int p_channel); + int get_transfer_channel() const; + void set_channel_count(int p_channel); + int get_channel_count() const; + void set_always_ordered(bool p_ordered); + bool is_always_ordered() const; + void set_server_relay_enabled(bool p_enabled); + bool is_server_relay_enabled() const; + + ENetMultiplayerPeer(); + ~ENetMultiplayerPeer(); + + void set_bind_ip(const IPAddress &p_ip); + void set_dtls_enabled(bool p_enabled); + bool is_dtls_enabled() const; + void set_dtls_verify_enabled(bool p_enabled); + bool is_dtls_verify_enabled() const; + void set_dtls_key(Ref<CryptoKey> p_key); + void set_dtls_certificate(Ref<X509Certificate> p_cert); +}; + +VARIANT_ENUM_CAST(ENetMultiplayerPeer::CompressionMode); + +#endif // NETWORKED_MULTIPLAYER_ENET_H |