From 894a34aef48024a752a1ef151d046955d83858d0 Mon Sep 17 00:00:00 2001 From: Loic Blot Date: Sat, 11 Apr 2020 09:59:09 +0200 Subject: Move PlayerSAO to dedicated files --- src/server/player_sao.h | 325 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) create mode 100644 src/server/player_sao.h (limited to 'src/server/player_sao.h') diff --git a/src/server/player_sao.h b/src/server/player_sao.h new file mode 100644 index 000000000..ce1cb1677 --- /dev/null +++ b/src/server/player_sao.h @@ -0,0 +1,325 @@ + +/* +Minetest +Copyright (C) 2010-2013 celeron55, Perttu Ahola +Copyright (C) 2013-2020 Minetest core developers & community + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "constants.h" +#include "network/networkprotocol.h" +#include "unit_sao.h" +#include "util/numeric.h" + +/* + PlayerSAO needs some internals exposed. +*/ + +class LagPool +{ + float m_pool = 15.0f; + float m_max = 15.0f; +public: + LagPool() = default; + + void setMax(float new_max) + { + m_max = new_max; + if(m_pool > new_max) + m_pool = new_max; + } + + void add(float dtime) + { + m_pool -= dtime; + if(m_pool < 0) + m_pool = 0; + } + + void empty() + { + m_pool = m_max; + } + + bool grab(float dtime) + { + if(dtime <= 0) + return true; + if(m_pool + dtime > m_max) + return false; + m_pool += dtime; + return true; + } +}; + +class RemotePlayer; + +class PlayerSAO : public UnitSAO +{ +public: + PlayerSAO(ServerEnvironment *env_, RemotePlayer *player_, session_t peer_id_, + bool is_singleplayer); + + ActiveObjectType getType() const + { return ACTIVEOBJECT_TYPE_PLAYER; } + ActiveObjectType getSendType() const + { return ACTIVEOBJECT_TYPE_GENERIC; } + std::string getDescription(); + + /* + Active object <-> environment interface + */ + + void addedToEnvironment(u32 dtime_s); + void removingFromEnvironment(); + bool isStaticAllowed() const { return false; } + std::string getClientInitializationData(u16 protocol_version); + void getStaticData(std::string *result) const; + void step(float dtime, bool send_recommended); + void setBasePosition(const v3f &position); + void setPos(const v3f &pos); + void moveTo(v3f pos, bool continuous); + void setPlayerYaw(const float yaw); + // Data should not be sent at player initialization + void setPlayerYawAndSend(const float yaw); + void setLookPitch(const float pitch); + // Data should not be sent at player initialization + void setLookPitchAndSend(const float pitch); + f32 getLookPitch() const { return m_pitch; } + f32 getRadLookPitch() const { return m_pitch * core::DEGTORAD; } + // Deprecated + f32 getRadLookPitchDep() const { return -1.0 * m_pitch * core::DEGTORAD; } + void setFov(const float pitch); + f32 getFov() const { return m_fov; } + void setWantedRange(const s16 range); + s16 getWantedRange() const { return m_wanted_range; } + + /* + Interaction interface + */ + + u16 punch(v3f dir, + const ToolCapabilities *toolcap, + ServerActiveObject *puncher, + float time_from_last_punch); + void rightClick(ServerActiveObject *clicker) {} + void setHP(s32 hp, const PlayerHPChangeReason &reason); + void setHPRaw(u16 hp) { m_hp = hp; } + s16 readDamage(); + u16 getBreath() const { return m_breath; } + void setBreath(const u16 breath, bool send = true); + + /* + Inventory interface + */ + Inventory *getInventory() const; + InventoryLocation getInventoryLocation() const; + void setInventoryModified() {} + std::string getWieldList() const { return "main"; } + u16 getWieldIndex() const; + ItemStack getWieldedItem(ItemStack *selected, ItemStack *hand = nullptr) const; + bool setWieldedItem(const ItemStack &item); + + /* + PlayerSAO-specific + */ + + void disconnected(); + + RemotePlayer *getPlayer() { return m_player; } + session_t getPeerID() const { return m_peer_id; } + + // Cheat prevention + + v3f getLastGoodPosition() const + { + return m_last_good_position; + } + float resetTimeFromLastPunch() + { + float r = m_time_from_last_punch; + m_time_from_last_punch = 0.0; + return r; + } + void noCheatDigStart(const v3s16 &p) + { + m_nocheat_dig_pos = p; + m_nocheat_dig_time = 0; + } + v3s16 getNoCheatDigPos() + { + return m_nocheat_dig_pos; + } + float getNoCheatDigTime() + { + return m_nocheat_dig_time; + } + void noCheatDigEnd() + { + m_nocheat_dig_pos = v3s16(32767, 32767, 32767); + } + LagPool& getDigPool() + { + return m_dig_pool; + } + void setMaxSpeedOverride(const v3f &vel); + // Returns true if cheated + bool checkMovementCheat(); + + // Other + + void updatePrivileges(const std::set &privs, + bool is_singleplayer) + { + m_privs = privs; + m_is_singleplayer = is_singleplayer; + } + + bool getCollisionBox(aabb3f *toset) const; + bool getSelectionBox(aabb3f *toset) const; + bool collideWithObjects() const { return true; } + + void finalize(RemotePlayer *player, const std::set &privs); + + v3f getEyePosition() const { return m_base_position + getEyeOffset(); } + v3f getEyeOffset() const; + float getZoomFOV() const; + + inline Metadata &getMeta() { return m_meta; } + +private: + std::string getPropertyPacket(); + void unlinkPlayerSessionAndSave(); + std::string generateUpdatePhysicsOverrideCommand() const; + + RemotePlayer *m_player = nullptr; + session_t m_peer_id = 0; + + // Cheat prevention + LagPool m_dig_pool; + LagPool m_move_pool; + v3f m_last_good_position; + float m_time_from_last_teleport = 0.0f; + float m_time_from_last_punch = 0.0f; + v3s16 m_nocheat_dig_pos = v3s16(32767, 32767, 32767); + float m_nocheat_dig_time = 0.0f; + float m_max_speed_override_time = 0.0f; + v3f m_max_speed_override = v3f(0.0f, 0.0f, 0.0f); + + // Timers + IntervalLimiter m_breathing_interval; + IntervalLimiter m_drowning_interval; + IntervalLimiter m_node_hurt_interval; + + bool m_position_not_sent = false; + + // Cached privileges for enforcement + std::set m_privs; + bool m_is_singleplayer; + + u16 m_breath = PLAYER_MAX_BREATH_DEFAULT; + f32 m_pitch = 0.0f; + f32 m_fov = 0.0f; + s16 m_wanted_range = 0.0f; + + Metadata m_meta; +public: + float m_physics_override_speed = 1.0f; + float m_physics_override_jump = 1.0f; + float m_physics_override_gravity = 1.0f; + bool m_physics_override_sneak = true; + bool m_physics_override_sneak_glitch = false; + bool m_physics_override_new_move = true; + bool m_physics_override_sent = false; +}; + + +struct PlayerHPChangeReason { + enum Type : u8 { + SET_HP, + PLAYER_PUNCH, + FALL, + NODE_DAMAGE, + DROWNING, + RESPAWN + }; + + Type type = SET_HP; + bool from_mod = false; + int lua_reference = -1; + + // For PLAYER_PUNCH + ServerActiveObject *object = nullptr; + // For NODE_DAMAGE + std::string node; + + inline bool hasLuaReference() const + { + return lua_reference >= 0; + } + + bool setTypeFromString(const std::string &typestr) + { + if (typestr == "set_hp") + type = SET_HP; + else if (typestr == "punch") + type = PLAYER_PUNCH; + else if (typestr == "fall") + type = FALL; + else if (typestr == "node_damage") + type = NODE_DAMAGE; + else if (typestr == "drown") + type = DROWNING; + else if (typestr == "respawn") + type = RESPAWN; + else + return false; + + return true; + } + + std::string getTypeAsString() const + { + switch (type) { + case PlayerHPChangeReason::SET_HP: + return "set_hp"; + case PlayerHPChangeReason::PLAYER_PUNCH: + return "punch"; + case PlayerHPChangeReason::FALL: + return "fall"; + case PlayerHPChangeReason::NODE_DAMAGE: + return "node_damage"; + case PlayerHPChangeReason::DROWNING: + return "drown"; + case PlayerHPChangeReason::RESPAWN: + return "respawn"; + default: + return "?"; + } + } + + PlayerHPChangeReason(Type type): + type(type) + {} + + PlayerHPChangeReason(Type type, ServerActiveObject *object): + type(type), object(object) + {} + + PlayerHPChangeReason(Type type, std::string node): + type(type), node(node) + {} +}; 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