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Code Issues Releases Wiki Activity

Move PlayerSAO to dedicated files

This commit is contained in:
Loic Blot 2020-04-11 09:59:09 +02:00 committed by Loïc Blot
parent c99e8df07f
commit 894a34aef4
19 changed files with 1038 additions and 992 deletions
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3
src/clientiface.cpp
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@ -19,6 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <sstream>
#include "clientiface.h"
#include "content_sao.h"
#include "network/connection.h"
#include "network/serveropcodes.h"
#include "remoteplayer.h"
@ -27,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "serverenvironment.h"
#include "map.h"
#include "emerge.h"
#include "content_sao.h" // TODO this is used for cleanup of only
#include "server/player_sao.h"
#include "log.h"
#include "util/srp.h"
#include "face_position_cache.h"

676
src/content_sao.cpp
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@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "remoteplayer.h"
#include "server.h"
#include "scripting_server.h"
#include "server/player_sao.h"
#include "settings.h"
#include <algorithm>
#include <cmath>
@ -678,678 +679,3 @@ bool LuaEntitySAO::collideWithObjects() const
{
return m_prop.collideWithObjects;
}
/*
PlayerSAO
*/
// No prototype, PlayerSAO does not need to be deserialized
PlayerSAO::PlayerSAO(ServerEnvironment *env_, RemotePlayer *player_, session_t peer_id_,
bool is_singleplayer):
UnitSAO(env_, v3f(0,0,0)),
m_player(player_),
m_peer_id(peer_id_),
m_is_singleplayer(is_singleplayer)
{
SANITY_CHECK(m_peer_id != PEER_ID_INEXISTENT);
m_prop.hp_max = PLAYER_MAX_HP_DEFAULT;
m_prop.breath_max = PLAYER_MAX_BREATH_DEFAULT;
m_prop.physical = false;
m_prop.collisionbox = aabb3f(-0.3f, 0.0f, -0.3f, 0.3f, 1.77f, 0.3f);
m_prop.selectionbox = aabb3f(-0.3f, 0.0f, -0.3f, 0.3f, 1.77f, 0.3f);
m_prop.pointable = true;
// Start of default appearance, this should be overwritten by Lua
m_prop.visual = "upright_sprite";
m_prop.visual_size = v3f(1, 2, 1);
m_prop.textures.clear();
m_prop.textures.emplace_back("player.png");
m_prop.textures.emplace_back("player_back.png");
m_prop.colors.clear();
m_prop.colors.emplace_back(255, 255, 255, 255);
m_prop.spritediv = v2s16(1,1);
m_prop.eye_height = 1.625f;
// End of default appearance
m_prop.is_visible = true;
m_prop.backface_culling = false;
m_prop.makes_footstep_sound = true;
m_prop.stepheight = PLAYER_DEFAULT_STEPHEIGHT * BS;
m_hp = m_prop.hp_max;
m_breath = m_prop.breath_max;
// Disable zoom in survival mode using a value of 0
m_prop.zoom_fov = g_settings->getBool("creative_mode") ? 15.0f : 0.0f;
if (!g_settings->getBool("enable_damage"))
m_armor_groups["immortal"] = 1;
}
void PlayerSAO::finalize(RemotePlayer *player, const std::set<std::string> &privs)
{
assert(player);
m_player = player;
m_privs = privs;
}
v3f PlayerSAO::getEyeOffset() const
{
return v3f(0, BS * m_prop.eye_height, 0);
}
std::string PlayerSAO::getDescription()
{
return std::string("player ") + m_player->getName();
}
// Called after id has been set and has been inserted in environment
void PlayerSAO::addedToEnvironment(u32 dtime_s)
{
ServerActiveObject::addedToEnvironment(dtime_s);
ServerActiveObject::setBasePosition(m_base_position);
m_player->setPlayerSAO(this);
m_player->setPeerId(m_peer_id);
m_last_good_position = m_base_position;
}
// Called before removing from environment
void PlayerSAO::removingFromEnvironment()
{
ServerActiveObject::removingFromEnvironment();
if (m_player->getPlayerSAO() == this) {
unlinkPlayerSessionAndSave();
for (u32 attached_particle_spawner : m_attached_particle_spawners) {
m_env->deleteParticleSpawner(attached_particle_spawner, false);
}
}
}
std::string PlayerSAO::getClientInitializationData(u16 protocol_version)
{
std::ostringstream os(std::ios::binary);
// Protocol >= 15
writeU8(os, 1); // version
os << serializeString(m_player->getName()); // name
writeU8(os, 1); // is_player
writeS16(os, getId()); // id
writeV3F32(os, m_base_position);
writeV3F32(os, m_rotation);
writeU16(os, getHP());
std::ostringstream msg_os(std::ios::binary);
msg_os << serializeLongString(getPropertyPacket()); // message 1
msg_os << serializeLongString(generateUpdateArmorGroupsCommand()); // 2
msg_os << serializeLongString(generateUpdateAnimationCommand()); // 3
for (std::unordered_map<std::string, core::vector2d<v3f>>::const_iterator
ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
msg_os << serializeLongString(generateUpdateBonePositionCommand((*ii).first,
(*ii).second.X, (*ii).second.Y)); // m_bone_position.size
}
msg_os << serializeLongString(generateUpdateAttachmentCommand()); // 4
msg_os << serializeLongString(generateUpdatePhysicsOverrideCommand()); // 5
// (AO_CMD_UPDATE_NAMETAG_ATTRIBUTES) : Deprecated, for backwards compatibility only.
msg_os << serializeLongString(generateUpdateNametagAttributesCommand(m_prop.nametag_color)); // 6
int message_count = 6 + m_bone_position.size();
for (std::unordered_set<int>::const_iterator ii = m_attachment_child_ids.begin();
ii != m_attachment_child_ids.end(); ++ii) {
if (ServerActiveObject *obj = m_env->getActiveObject(*ii)) {
message_count++;
msg_os << serializeLongString(obj->generateUpdateInfantCommand(*ii, protocol_version));
}
}
writeU8(os, message_count);
os.write(msg_os.str().c_str(), msg_os.str().size());
// return result
return os.str();
}
void PlayerSAO::getStaticData(std::string * result) const
{
FATAL_ERROR("Obsolete function");
}
void PlayerSAO::step(float dtime, bool send_recommended)
{
if (!isImmortal() && m_drowning_interval.step(dtime, 2.0f)) {
// Get nose/mouth position, approximate with eye position
v3s16 p = floatToInt(getEyePosition(), BS);
MapNode n = m_env->getMap().getNode(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
// If node generates drown
if (c.drowning > 0 && m_hp > 0) {
if (m_breath > 0)
setBreath(m_breath - 1);
// No more breath, damage player
if (m_breath == 0) {
PlayerHPChangeReason reason(PlayerHPChangeReason::DROWNING);
setHP(m_hp - c.drowning, reason);
m_env->getGameDef()->SendPlayerHPOrDie(this, reason);
}
}
}
if (m_breathing_interval.step(dtime, 0.5f) && !isImmortal()) {
// Get nose/mouth position, approximate with eye position
v3s16 p = floatToInt(getEyePosition(), BS);
MapNode n = m_env->getMap().getNode(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
// If player is alive & not drowning & not in ignore & not immortal, breathe
if (m_breath < m_prop.breath_max && c.drowning == 0 &&
n.getContent() != CONTENT_IGNORE && m_hp > 0)
setBreath(m_breath + 1);
}
if (!isImmortal() && m_node_hurt_interval.step(dtime, 1.0f)) {
u32 damage_per_second = 0;
std::string nodename;
// Lowest and highest damage points are 0.1 within collisionbox
float dam_top = m_prop.collisionbox.MaxEdge.Y - 0.1f;
// Sequence of damage points, starting 0.1 above feet and progressing
// upwards in 1 node intervals, stopping below top damage point.
for (float dam_height = 0.1f; dam_height < dam_top; dam_height++) {
v3s16 p = floatToInt(m_base_position +
v3f(0.0f, dam_height * BS, 0.0f), BS);
MapNode n = m_env->getMap().getNode(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
if (c.damage_per_second > damage_per_second) {
damage_per_second = c.damage_per_second;
nodename = c.name;
}
}
// Top damage point
v3s16 ptop = floatToInt(m_base_position +
v3f(0.0f, dam_top * BS, 0.0f), BS);
MapNode ntop = m_env->getMap().getNode(ptop);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(ntop);
if (c.damage_per_second > damage_per_second) {
damage_per_second = c.damage_per_second;
nodename = c.name;
}
if (damage_per_second != 0 && m_hp > 0) {
s32 newhp = (s32)m_hp - (s32)damage_per_second;
PlayerHPChangeReason reason(PlayerHPChangeReason::NODE_DAMAGE, nodename);
setHP(newhp, reason);
m_env->getGameDef()->SendPlayerHPOrDie(this, reason);
}
}
if (!m_properties_sent) {
m_properties_sent = true;
std::string str = getPropertyPacket();
// create message and add to list
ActiveObjectMessage aom(getId(), true, str);
m_messages_out.push(aom);
m_env->getScriptIface()->player_event(this, "properties_changed");
}
// If attached, check that our parent is still there. If it isn't, detach.
if (m_attachment_parent_id && !isAttached()) {
m_attachment_parent_id = 0;
m_attachment_bone = "";
m_attachment_position = v3f(0.0f, 0.0f, 0.0f);
m_attachment_rotation = v3f(0.0f, 0.0f, 0.0f);
setBasePosition(m_last_good_position);
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
//dstream<<"PlayerSAO::step: dtime: "<<dtime<<std::endl;
// Set lag pool maximums based on estimated lag
const float LAG_POOL_MIN = 5.0f;
float lag_pool_max = m_env->getMaxLagEstimate() * 2.0f;
if(lag_pool_max < LAG_POOL_MIN)
lag_pool_max = LAG_POOL_MIN;
m_dig_pool.setMax(lag_pool_max);
m_move_pool.setMax(lag_pool_max);
// Increment cheat prevention timers
m_dig_pool.add(dtime);
m_move_pool.add(dtime);
m_time_from_last_teleport += dtime;
m_time_from_last_punch += dtime;
m_nocheat_dig_time += dtime;
m_max_speed_override_time = MYMAX(m_max_speed_override_time - dtime, 0.0f);
// Each frame, parent position is copied if the object is attached,
// otherwise it's calculated normally.
// If the object gets detached this comes into effect automatically from
// the last known origin.
if (isAttached()) {
v3f pos = m_env->getActiveObject(m_attachment_parent_id)->getBasePosition();
m_last_good_position = pos;
setBasePosition(pos);
}
if (!send_recommended)
return;
if (m_position_not_sent) {
m_position_not_sent = false;
float update_interval = m_env->getSendRecommendedInterval();
v3f pos;
// When attached, the position is only sent to clients where the
// parent isn't known
if (isAttached())
pos = m_last_good_position;
else
pos = m_base_position;
std::string str = generateUpdatePositionCommand(
pos,
v3f(0.0f, 0.0f, 0.0f),
v3f(0.0f, 0.0f, 0.0f),
m_rotation,
true,
false,
update_interval
);
// create message and add to list
m_messages_out.emplace(getId(), false, str);
}
if (!m_armor_groups_sent) {
m_armor_groups_sent = true;
// create message and add to list
m_messages_out.emplace(getId(), true, generateUpdateArmorGroupsCommand());
}
if (!m_physics_override_sent) {
m_physics_override_sent = true;
// create message and add to list
m_messages_out.emplace(getId(), true, generateUpdatePhysicsOverrideCommand());
}
if (!m_animation_sent) {
m_animation_sent = true;
// create message and add to list
m_messages_out.emplace(getId(), true, generateUpdateAnimationCommand());
}
if (!m_bone_position_sent) {
m_bone_position_sent = true;
for (std::unordered_map<std::string, core::vector2d<v3f>>::const_iterator
ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
std::string str = generateUpdateBonePositionCommand((*ii).first,
(*ii).second.X, (*ii).second.Y);
// create message and add to list
m_messages_out.emplace(getId(), true, str);
}
}
if (!m_attachment_sent) {
m_attachment_sent = true;
std::string str = generateUpdateAttachmentCommand();
// create message and add to list
ActiveObjectMessage aom(getId(), true, str);
m_messages_out.push(aom);
}
}
std::string PlayerSAO::generateUpdatePhysicsOverrideCommand() const
{
std::ostringstream os(std::ios::binary);
// command
writeU8(os, AO_CMD_SET_PHYSICS_OVERRIDE);
// parameters
writeF32(os, m_physics_override_speed);
writeF32(os, m_physics_override_jump);
writeF32(os, m_physics_override_gravity);
// these are sent inverted so we get true when the server sends nothing
writeU8(os, !m_physics_override_sneak);
writeU8(os, !m_physics_override_sneak_glitch);
writeU8(os, !m_physics_override_new_move);
return os.str();
}
void PlayerSAO::setBasePosition(const v3f &position)
{
if (m_player && position != m_base_position)
m_player->setDirty(true);
// This needs to be ran for attachments too
ServerActiveObject::setBasePosition(position);
// Updating is not wanted/required for player migration
if (m_env) {
m_position_not_sent = true;
}
}
void PlayerSAO::setPos(const v3f &pos)
{
if(isAttached())
return;
// Send mapblock of target location
v3s16 blockpos = v3s16(pos.X / MAP_BLOCKSIZE, pos.Y / MAP_BLOCKSIZE, pos.Z / MAP_BLOCKSIZE);
m_env->getGameDef()->SendBlock(m_peer_id, blockpos);
setBasePosition(pos);
// Movement caused by this command is always valid
m_last_good_position = pos;
m_move_pool.empty();
m_time_from_last_teleport = 0.0;
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
void PlayerSAO::moveTo(v3f pos, bool continuous)
{
if(isAttached())
return;
setBasePosition(pos);
// Movement caused by this command is always valid
m_last_good_position = pos;
m_move_pool.empty();
m_time_from_last_teleport = 0.0;
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
void PlayerSAO::setPlayerYaw(const float yaw)
{
v3f rotation(0, yaw, 0);
if (m_player && yaw != m_rotation.Y)
m_player->setDirty(true);
// Set player model yaw, not look view
UnitSAO::setRotation(rotation);
}
void PlayerSAO::setFov(const float fov)
{
if (m_player && fov != m_fov)
m_player->setDirty(true);
m_fov = fov;
}
void PlayerSAO::setWantedRange(const s16 range)
{
if (m_player && range != m_wanted_range)
m_player->setDirty(true);
m_wanted_range = range;
}
void PlayerSAO::setPlayerYawAndSend(const float yaw)
{
setPlayerYaw(yaw);
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
void PlayerSAO::setLookPitch(const float pitch)
{
if (m_player && pitch != m_pitch)
m_player->setDirty(true);
m_pitch = pitch;
}
void PlayerSAO::setLookPitchAndSend(const float pitch)
{
setLookPitch(pitch);
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
u16 PlayerSAO::punch(v3f dir,
const ToolCapabilities *toolcap,
ServerActiveObject *puncher,
float time_from_last_punch)
{
if (!toolcap)
return 0;
FATAL_ERROR_IF(!puncher, "Punch action called without SAO");
// No effect if PvP disabled or if immortal
if (isImmortal() || !g_settings->getBool("enable_pvp")) {
if (puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
// create message and add to list
sendPunchCommand();
return 0;
}
}
s32 old_hp = getHP();
HitParams hitparams = getHitParams(m_armor_groups, toolcap,
time_from_last_punch);
PlayerSAO *playersao = m_player->getPlayerSAO();
bool damage_handled = m_env->getScriptIface()->on_punchplayer(playersao,
puncher, time_from_last_punch, toolcap, dir,
hitparams.hp);
if (!damage_handled) {
setHP((s32)getHP() - (s32)hitparams.hp,
PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, puncher));
} else { // override client prediction
if (puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
// create message and add to list
sendPunchCommand();
}
}
actionstream << puncher->getDescription() << " (id=" << puncher->getId() <<
", hp=" << puncher->getHP() << ") punched " <<
getDescription() << " (id=" << m_id << ", hp=" << m_hp <<
"), damage=" << (old_hp - (s32)getHP()) <<
(damage_handled ? " (handled by Lua)" : "") << std::endl;
return hitparams.wear;
}
void PlayerSAO::setHP(s32 hp, const PlayerHPChangeReason &reason)
{
s32 oldhp = m_hp;
hp = rangelim(hp, 0, m_prop.hp_max);
if (oldhp != hp) {
s32 hp_change = m_env->getScriptIface()->on_player_hpchange(this, hp - oldhp, reason);
if (hp_change == 0)
return;
hp = rangelim(oldhp + hp_change, 0, m_prop.hp_max);
}
if (hp < oldhp && isImmortal())
return;
m_hp = hp;
// Update properties on death
if ((hp == 0) != (oldhp == 0))
m_properties_sent = false;
}
void PlayerSAO::setBreath(const u16 breath, bool send)
{
if (m_player && breath != m_breath)
m_player->setDirty(true);
m_breath = rangelim(breath, 0, m_prop.breath_max);
if (send)
m_env->getGameDef()->SendPlayerBreath(this);
}
Inventory *PlayerSAO::getInventory() const
{
return m_player ? &m_player->inventory : nullptr;
}
InventoryLocation PlayerSAO::getInventoryLocation() const
{
InventoryLocation loc;
loc.setPlayer(m_player->getName());
return loc;
}
u16 PlayerSAO::getWieldIndex() const
{
return m_player->getWieldIndex();
}
ItemStack PlayerSAO::getWieldedItem(ItemStack *selected, ItemStack *hand) const
{
return m_player->getWieldedItem(selected, hand);
}
bool PlayerSAO::setWieldedItem(const ItemStack &item)
{
InventoryList *mlist = m_player->inventory.getList(getWieldList());
if (mlist) {
mlist->changeItem(m_player->getWieldIndex(), item);
return true;
}
return false;
}
void PlayerSAO::disconnected()
{
m_peer_id = PEER_ID_INEXISTENT;
m_pending_removal = true;
}
void PlayerSAO::unlinkPlayerSessionAndSave()
{
assert(m_player->getPlayerSAO() == this);
m_player->setPeerId(PEER_ID_INEXISTENT);
m_env->savePlayer(m_player);
m_player->setPlayerSAO(NULL);
m_env->removePlayer(m_player);
}
std::string PlayerSAO::getPropertyPacket()
{
m_prop.is_visible = (true);
return generateSetPropertiesCommand(m_prop);
}
void PlayerSAO::setMaxSpeedOverride(const v3f &vel)
{
if (m_max_speed_override_time == 0.0f)
m_max_speed_override = vel;
else
m_max_speed_override += vel;
if (m_player) {
float accel = MYMIN(m_player->movement_acceleration_default,
m_player->movement_acceleration_air);
m_max_speed_override_time = m_max_speed_override.getLength() / accel / BS;
}
}
bool PlayerSAO::checkMovementCheat()
{
if (isAttached() || m_is_singleplayer ||
g_settings->getBool("disable_anticheat")) {
m_last_good_position = m_base_position;
return false;
}
bool cheated = false;
/*
Check player movements
NOTE: Actually the server should handle player physics like the
client does and compare player's position to what is calculated
on our side. This is required when eg. players fly due to an
explosion. Altough a node-based alternative might be possible
too, and much more lightweight.
*/
float override_max_H, override_max_V;
if (m_max_speed_override_time > 0.0f) {
override_max_H = MYMAX(fabs(m_max_speed_override.X), fabs(m_max_speed_override.Z));
override_max_V = fabs(m_max_speed_override.Y);
} else {
override_max_H = override_max_V = 0.0f;
}
float player_max_walk = 0; // horizontal movement
float player_max_jump = 0; // vertical upwards movement
if (m_privs.count("fast") != 0)
player_max_walk = m_player->movement_speed_fast; // Fast speed
else
player_max_walk = m_player->movement_speed_walk; // Normal speed
player_max_walk *= m_physics_override_speed;
player_max_walk = MYMAX(player_max_walk, override_max_H);
player_max_jump = m_player->movement_speed_jump * m_physics_override_jump;
// FIXME: Bouncy nodes cause practically unbound increase in Y speed,
// until this can be verified correctly, tolerate higher jumping speeds
player_max_jump *= 2.0;
player_max_jump = MYMAX(player_max_jump, override_max_V);
// Don't divide by zero!
if (player_max_walk < 0.0001f)
player_max_walk = 0.0001f;
if (player_max_jump < 0.0001f)
player_max_jump = 0.0001f;
v3f diff = (m_base_position - m_last_good_position);
float d_vert = diff.Y;
diff.Y = 0;
float d_horiz = diff.getLength();
float required_time = d_horiz / player_max_walk;
// FIXME: Checking downwards movement is not easily possible currently,
// the server could calculate speed differences to examine the gravity
if (d_vert > 0) {
// In certain cases (water, ladders) walking speed is applied vertically
float s = MYMAX(player_max_jump, player_max_walk);
required_time = MYMAX(required_time, d_vert / s);
}
if (m_move_pool.grab(required_time)) {
m_last_good_position = m_base_position;
} else {
const float LAG_POOL_MIN = 5.0;
float lag_pool_max = m_env->getMaxLagEstimate() * 2.0;
lag_pool_max = MYMAX(lag_pool_max, LAG_POOL_MIN);
if (m_time_from_last_teleport > lag_pool_max) {
actionstream << "Player " << m_player->getName()
<< " moved too fast; resetting position"
<< std::endl;
cheated = true;
}
setBasePosition(m_last_good_position);
}
return cheated;
}
bool PlayerSAO::getCollisionBox(aabb3f *toset) const
{
//update collision box
toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;
toset->MinEdge += m_base_position;
toset->MaxEdge += m_base_position;
return true;
}
bool PlayerSAO::getSelectionBox(aabb3f *toset) const
{
if (!m_prop.is_visible || !m_prop.pointable) {
return false;
}
toset->MinEdge = m_prop.selectionbox.MinEdge * BS;
toset->MaxEdge = m_prop.selectionbox.MaxEdge * BS;
return true;
}
float PlayerSAO::getZoomFOV() const
{
return m_prop.zoom_fov;
}

299
src/content_sao.h
View File

@ -99,302 +99,3 @@ private:
std::string m_current_texture_modifier = "";
};
/*
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<std::string> &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<std::string> &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<std::string> 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)
{}
};

2
src/database/database-files.cpp
View File

@ -20,11 +20,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <cassert>
#include <json/json.h>
#include "database-files.h"
#include "content_sao.h"
#include "remoteplayer.h"
#include "settings.h"
#include "porting.h"
#include "filesys.h"
#include "server/player_sao.h"
#include "util/string.h"
// !!! WARNING !!!

2
src/database/database-postgresql.cpp
View File

@ -36,8 +36,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "debug.h"
#include "exceptions.h"
#include "settings.h"
#include "content_sao.h"
#include "remoteplayer.h"
#include "server/player_sao.h"
Database_PostgreSQL::Database_PostgreSQL(const std::string &connect_string) :
m_connect_string(connect_string)

2
src/database/database-sqlite3.cpp
View File

@ -33,8 +33,8 @@ SQLite format specification:
#include "settings.h"
#include "porting.h"
#include "util/string.h"
#include "content_sao.h"
#include "remoteplayer.h"
#include "server/player_sao.h"
#include <cassert>

2
src/network/serverpackethandler.cpp
View File

@ -20,7 +20,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "chatmessage.h"
#include "server.h"
#include "log.h"
#include "content_sao.h"
#include "emerge.h"
#include "mapblock.h"
#include "modchannels.h"
@ -34,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "network/connection.h"
#include "network/networkprotocol.h"
#include "network/serveropcodes.h"
#include "server/player_sao.h"
#include "util/auth.h"
#include "util/base64.h"
#include "util/pointedthing.h"

2
src/remoteplayer.cpp
View File

@ -20,13 +20,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "remoteplayer.h"
#include <json/json.h>
#include "content_sao.h"
#include "filesys.h"
#include "gamedef.h"
#include "porting.h" // strlcpy
#include "server.h"
#include "settings.h"
#include "convert_json.h"
#include "server/player_sao.h"
/*
RemotePlayer

3
src/script/common/c_content.cpp
View File

@ -21,7 +21,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "common/c_types.h"
#include "nodedef.h"
#include "object_properties.h"
#include "content_sao.h"
#include "cpp_api/s_node.h"
#include "lua_api/l_object.h"
#include "lua_api/l_item.h"
@ -29,10 +28,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "server.h"
#include "log.h"
#include "tool.h"
#include "server/serveractiveobject.h"
#include "porting.h"
#include "mapgen/mg_schematic.h"
#include "noise.h"
#include "server/player_sao.h"
#include "util/pointedthing.h"
#include "debug.h" // For FATAL_ERROR
#include <json/json.h>

2
src/script/cpp_api/s_base.cpp
View File

@ -22,7 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "cpp_api/s_security.h"
#include "lua_api/l_object.h"
#include "common/c_converter.h"
#include "server/serveractiveobject.h"
#include "server/player_sao.h"
#include "filesys.h"
#include "content/mods.h"
#include "porting.h"

1
src/script/cpp_api/s_player.h
View File

@ -28,6 +28,7 @@ struct InventoryLocation;
struct ItemStack;
struct ToolCapabilities;
struct PlayerHPChangeReason;
class ServerActiveObject;
class ScriptApiPlayer : virtual public ScriptApiBase
{

3
src/script/lua_api/l_env.cpp
View File

@ -17,6 +17,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <algorithm>
#include "lua_api/l_env.h"
#include "lua_api/l_internal.h"
#include "lua_api/l_nodemeta.h"
@ -25,7 +26,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_vmanip.h"
#include "common/c_converter.h"
#include "common/c_content.h"
#include <algorithm>
#include "scripting_server.h"
#include "environment.h"
#include "mapblock.h"
@ -39,6 +39,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "pathfinder.h"
#include "face_position_cache.h"
#include "remoteplayer.h"
#include "server/player_sao.h"
#ifndef SERVER
#include "client/client.h"
#endif

2
src/script/lua_api/l_object.cpp
View File

@ -27,12 +27,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "common/c_content.h"
#include "log.h"
#include "tool.h"
#include "server/serveractiveobject.h"
#include "content_sao.h"
#include "remoteplayer.h"
#include "server.h"
#include "hud.h"
#include "scripting_server.h"
#include "server/player_sao.h"
/*
ObjectRef

2
src/server.cpp
View File

@ -47,7 +47,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapgen/mg_biome.h"
#include "content_mapnode.h"
#include "content_nodemeta.h"
#include "content_sao.h"
#include "content/mods.h"
#include "modchannels.h"
#include "serverlist.h"
@ -64,6 +63,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "chatmessage.h"
#include "chat_interface.h"
#include "remoteplayer.h"
#include "server/player_sao.h"
class ClientNotFoundException : public BaseException
{

1
src/server/CMakeLists.txt
View File

@ -1,6 +1,7 @@
set(server_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/activeobjectmgr.cpp
${CMAKE_CURRENT_SOURCE_DIR}/mods.cpp
${CMAKE_CURRENT_SOURCE_DIR}/player_sao.cpp
${CMAKE_CURRENT_SOURCE_DIR}/serveractiveobject.cpp
${CMAKE_CURRENT_SOURCE_DIR}/unit_sao.cpp
PARENT_SCOPE)

695
src/server/player_sao.cpp Normal file
View File

@ -0,0 +1,695 @@
/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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 "player_sao.h"
#include "nodedef.h"
#include "remoteplayer.h"
#include "scripting_server.h"
#include "server.h"
#include "serverenvironment.h"
PlayerSAO::PlayerSAO(ServerEnvironment *env_, RemotePlayer *player_, session_t peer_id_,
bool is_singleplayer):
UnitSAO(env_, v3f(0,0,0)),
m_player(player_),
m_peer_id(peer_id_),
m_is_singleplayer(is_singleplayer)
{
SANITY_CHECK(m_peer_id != PEER_ID_INEXISTENT);
m_prop.hp_max = PLAYER_MAX_HP_DEFAULT;
m_prop.breath_max = PLAYER_MAX_BREATH_DEFAULT;
m_prop.physical = false;
m_prop.collisionbox = aabb3f(-0.3f, 0.0f, -0.3f, 0.3f, 1.77f, 0.3f);
m_prop.selectionbox = aabb3f(-0.3f, 0.0f, -0.3f, 0.3f, 1.77f, 0.3f);
m_prop.pointable = true;
// Start of default appearance, this should be overwritten by Lua
m_prop.visual = "upright_sprite";
m_prop.visual_size = v3f(1, 2, 1);
m_prop.textures.clear();
m_prop.textures.emplace_back("player.png");
m_prop.textures.emplace_back("player_back.png");
m_prop.colors.clear();
m_prop.colors.emplace_back(255, 255, 255, 255);
m_prop.spritediv = v2s16(1,1);
m_prop.eye_height = 1.625f;
// End of default appearance
m_prop.is_visible = true;
m_prop.backface_culling = false;
m_prop.makes_footstep_sound = true;
m_prop.stepheight = PLAYER_DEFAULT_STEPHEIGHT * BS;
m_hp = m_prop.hp_max;
m_breath = m_prop.breath_max;
// Disable zoom in survival mode using a value of 0
m_prop.zoom_fov = g_settings->getBool("creative_mode") ? 15.0f : 0.0f;
if (!g_settings->getBool("enable_damage"))
m_armor_groups["immortal"] = 1;
}
void PlayerSAO::finalize(RemotePlayer *player, const std::set<std::string> &privs)
{
assert(player);
m_player = player;
m_privs = privs;
}
v3f PlayerSAO::getEyeOffset() const
{
return v3f(0, BS * m_prop.eye_height, 0);
}
std::string PlayerSAO::getDescription()
{
return std::string("player ") + m_player->getName();
}
// Called after id has been set and has been inserted in environment
void PlayerSAO::addedToEnvironment(u32 dtime_s)
{
ServerActiveObject::addedToEnvironment(dtime_s);
ServerActiveObject::setBasePosition(m_base_position);
m_player->setPlayerSAO(this);
m_player->setPeerId(m_peer_id);
m_last_good_position = m_base_position;
}
// Called before removing from environment
void PlayerSAO::removingFromEnvironment()
{
ServerActiveObject::removingFromEnvironment();
if (m_player->getPlayerSAO() == this) {
unlinkPlayerSessionAndSave();
for (u32 attached_particle_spawner : m_attached_particle_spawners) {
m_env->deleteParticleSpawner(attached_particle_spawner, false);
}
}
}
std::string PlayerSAO::getClientInitializationData(u16 protocol_version)
{
std::ostringstream os(std::ios::binary);
// Protocol >= 15
writeU8(os, 1); // version
os << serializeString(m_player->getName()); // name
writeU8(os, 1); // is_player
writeS16(os, getId()); // id
writeV3F32(os, m_base_position);
writeV3F32(os, m_rotation);
writeU16(os, getHP());
std::ostringstream msg_os(std::ios::binary);
msg_os << serializeLongString(getPropertyPacket()); // message 1
msg_os << serializeLongString(generateUpdateArmorGroupsCommand()); // 2
msg_os << serializeLongString(generateUpdateAnimationCommand()); // 3
for (std::unordered_map<std::string, core::vector2d<v3f>>::const_iterator
ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
msg_os << serializeLongString(generateUpdateBonePositionCommand((*ii).first,
(*ii).second.X, (*ii).second.Y)); // m_bone_position.size
}
msg_os << serializeLongString(generateUpdateAttachmentCommand()); // 4
msg_os << serializeLongString(generateUpdatePhysicsOverrideCommand()); // 5
// (AO_CMD_UPDATE_NAMETAG_ATTRIBUTES) : Deprecated, for backwards compatibility only.
msg_os << serializeLongString(generateUpdateNametagAttributesCommand(m_prop.nametag_color)); // 6
int message_count = 6 + m_bone_position.size();
for (std::unordered_set<int>::const_iterator ii = m_attachment_child_ids.begin();
ii != m_attachment_child_ids.end(); ++ii) {
if (ServerActiveObject *obj = m_env->getActiveObject(*ii)) {
message_count++;
msg_os << serializeLongString(obj->generateUpdateInfantCommand(*ii, protocol_version));
}
}
writeU8(os, message_count);
os.write(msg_os.str().c_str(), msg_os.str().size());
// return result
return os.str();
}
void PlayerSAO::getStaticData(std::string * result) const
{
FATAL_ERROR("Obsolete function");
}
void PlayerSAO::step(float dtime, bool send_recommended)
{
if (!isImmortal() && m_drowning_interval.step(dtime, 2.0f)) {
// Get nose/mouth position, approximate with eye position
v3s16 p = floatToInt(getEyePosition(), BS);
MapNode n = m_env->getMap().getNode(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
// If node generates drown
if (c.drowning > 0 && m_hp > 0) {
if (m_breath > 0)
setBreath(m_breath - 1);
// No more breath, damage player
if (m_breath == 0) {
PlayerHPChangeReason reason(PlayerHPChangeReason::DROWNING);
setHP(m_hp - c.drowning, reason);
m_env->getGameDef()->SendPlayerHPOrDie(this, reason);
}
}
}
if (m_breathing_interval.step(dtime, 0.5f) && !isImmortal()) {
// Get nose/mouth position, approximate with eye position
v3s16 p = floatToInt(getEyePosition(), BS);
MapNode n = m_env->getMap().getNode(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
// If player is alive & not drowning & not in ignore & not immortal, breathe
if (m_breath < m_prop.breath_max && c.drowning == 0 &&
n.getContent() != CONTENT_IGNORE && m_hp > 0)
setBreath(m_breath + 1);
}
if (!isImmortal() && m_node_hurt_interval.step(dtime, 1.0f)) {
u32 damage_per_second = 0;
std::string nodename;
// Lowest and highest damage points are 0.1 within collisionbox
float dam_top = m_prop.collisionbox.MaxEdge.Y - 0.1f;
// Sequence of damage points, starting 0.1 above feet and progressing
// upwards in 1 node intervals, stopping below top damage point.
for (float dam_height = 0.1f; dam_height < dam_top; dam_height++) {
v3s16 p = floatToInt(m_base_position +
v3f(0.0f, dam_height * BS, 0.0f), BS);
MapNode n = m_env->getMap().getNode(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
if (c.damage_per_second > damage_per_second) {
damage_per_second = c.damage_per_second;
nodename = c.name;
}
}
// Top damage point
v3s16 ptop = floatToInt(m_base_position +
v3f(0.0f, dam_top * BS, 0.0f), BS);
MapNode ntop = m_env->getMap().getNode(ptop);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(ntop);
if (c.damage_per_second > damage_per_second) {
damage_per_second = c.damage_per_second;
nodename = c.name;
}
if (damage_per_second != 0 && m_hp > 0) {
s32 newhp = (s32)m_hp - (s32)damage_per_second;
PlayerHPChangeReason reason(PlayerHPChangeReason::NODE_DAMAGE, nodename);
setHP(newhp, reason);
m_env->getGameDef()->SendPlayerHPOrDie(this, reason);
}
}
if (!m_properties_sent) {
m_properties_sent = true;
std::string str = getPropertyPacket();
// create message and add to list
ActiveObjectMessage aom(getId(), true, str);
m_messages_out.push(aom);
m_env->getScriptIface()->player_event(this, "properties_changed");
}
// If attached, check that our parent is still there. If it isn't, detach.
if (m_attachment_parent_id && !isAttached()) {
m_attachment_parent_id = 0;
m_attachment_bone = "";
m_attachment_position = v3f(0.0f, 0.0f, 0.0f);
m_attachment_rotation = v3f(0.0f, 0.0f, 0.0f);
setBasePosition(m_last_good_position);
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
//dstream<<"PlayerSAO::step: dtime: "<<dtime<<std::endl;
// Set lag pool maximums based on estimated lag
const float LAG_POOL_MIN = 5.0f;
float lag_pool_max = m_env->getMaxLagEstimate() * 2.0f;
if(lag_pool_max < LAG_POOL_MIN)
lag_pool_max = LAG_POOL_MIN;
m_dig_pool.setMax(lag_pool_max);
m_move_pool.setMax(lag_pool_max);
// Increment cheat prevention timers
m_dig_pool.add(dtime);
m_move_pool.add(dtime);
m_time_from_last_teleport += dtime;
m_time_from_last_punch += dtime;
m_nocheat_dig_time += dtime;
m_max_speed_override_time = MYMAX(m_max_speed_override_time - dtime, 0.0f);
// Each frame, parent position is copied if the object is attached,
// otherwise it's calculated normally.
// If the object gets detached this comes into effect automatically from
// the last known origin.
if (isAttached()) {
v3f pos = m_env->getActiveObject(m_attachment_parent_id)->getBasePosition();
m_last_good_position = pos;
setBasePosition(pos);
}
if (!send_recommended)
return;
if (m_position_not_sent) {
m_position_not_sent = false;
float update_interval = m_env->getSendRecommendedInterval();
v3f pos;
// When attached, the position is only sent to clients where the
// parent isn't known
if (isAttached())
pos = m_last_good_position;
else
pos = m_base_position;
std::string str = generateUpdatePositionCommand(
pos,
v3f(0.0f, 0.0f, 0.0f),
v3f(0.0f, 0.0f, 0.0f),
m_rotation,
true,
false,
update_interval
);
// create message and add to list
m_messages_out.emplace(getId(), false, str);
}
if (!m_armor_groups_sent) {
m_armor_groups_sent = true;
// create message and add to list
m_messages_out.emplace(getId(), true, generateUpdateArmorGroupsCommand());
}
if (!m_physics_override_sent) {
m_physics_override_sent = true;
// create message and add to list
m_messages_out.emplace(getId(), true, generateUpdatePhysicsOverrideCommand());
}
if (!m_animation_sent) {
m_animation_sent = true;
// create message and add to list
m_messages_out.emplace(getId(), true, generateUpdateAnimationCommand());
}
if (!m_bone_position_sent) {
m_bone_position_sent = true;
for (std::unordered_map<std::string, core::vector2d<v3f>>::const_iterator
ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
std::string str = generateUpdateBonePositionCommand((*ii).first,
(*ii).second.X, (*ii).second.Y);
// create message and add to list
m_messages_out.emplace(getId(), true, str);
}
}
if (!m_attachment_sent) {
m_attachment_sent = true;
std::string str = generateUpdateAttachmentCommand();
// create message and add to list
ActiveObjectMessage aom(getId(), true, str);
m_messages_out.push(aom);
}
}
std::string PlayerSAO::generateUpdatePhysicsOverrideCommand() const
{
std::ostringstream os(std::ios::binary);
// command
writeU8(os, AO_CMD_SET_PHYSICS_OVERRIDE);
// parameters
writeF32(os, m_physics_override_speed);
writeF32(os, m_physics_override_jump);
writeF32(os, m_physics_override_gravity);
// these are sent inverted so we get true when the server sends nothing
writeU8(os, !m_physics_override_sneak);
writeU8(os, !m_physics_override_sneak_glitch);
writeU8(os, !m_physics_override_new_move);
return os.str();
}
void PlayerSAO::setBasePosition(const v3f &position)
{
if (m_player && position != m_base_position)
m_player->setDirty(true);
// This needs to be ran for attachments too
ServerActiveObject::setBasePosition(position);
// Updating is not wanted/required for player migration
if (m_env) {
m_position_not_sent = true;
}
}
void PlayerSAO::setPos(const v3f &pos)
{
if(isAttached())
return;
// Send mapblock of target location
v3s16 blockpos = v3s16(pos.X / MAP_BLOCKSIZE, pos.Y / MAP_BLOCKSIZE, pos.Z / MAP_BLOCKSIZE);
m_env->getGameDef()->SendBlock(m_peer_id, blockpos);
setBasePosition(pos);
// Movement caused by this command is always valid
m_last_good_position = pos;
m_move_pool.empty();
m_time_from_last_teleport = 0.0;
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
void PlayerSAO::moveTo(v3f pos, bool continuous)
{
if(isAttached())
return;
setBasePosition(pos);
// Movement caused by this command is always valid
m_last_good_position = pos;
m_move_pool.empty();
m_time_from_last_teleport = 0.0;
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
void PlayerSAO::setPlayerYaw(const float yaw)
{
v3f rotation(0, yaw, 0);
if (m_player && yaw != m_rotation.Y)
m_player->setDirty(true);
// Set player model yaw, not look view
UnitSAO::setRotation(rotation);
}
void PlayerSAO::setFov(const float fov)
{
if (m_player && fov != m_fov)
m_player->setDirty(true);
m_fov = fov;
}
void PlayerSAO::setWantedRange(const s16 range)
{
if (m_player && range != m_wanted_range)
m_player->setDirty(true);
m_wanted_range = range;
}
void PlayerSAO::setPlayerYawAndSend(const float yaw)
{
setPlayerYaw(yaw);
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
void PlayerSAO::setLookPitch(const float pitch)
{
if (m_player && pitch != m_pitch)
m_player->setDirty(true);
m_pitch = pitch;
}
void PlayerSAO::setLookPitchAndSend(const float pitch)
{
setLookPitch(pitch);
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
u16 PlayerSAO::punch(v3f dir,
const ToolCapabilities *toolcap,
ServerActiveObject *puncher,
float time_from_last_punch)
{
if (!toolcap)
return 0;
FATAL_ERROR_IF(!puncher, "Punch action called without SAO");
// No effect if PvP disabled or if immortal
if (isImmortal() || !g_settings->getBool("enable_pvp")) {
if (puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
// create message and add to list
sendPunchCommand();
return 0;
}
}
s32 old_hp = getHP();
HitParams hitparams = getHitParams(m_armor_groups, toolcap,
time_from_last_punch);
PlayerSAO *playersao = m_player->getPlayerSAO();
bool damage_handled = m_env->getScriptIface()->on_punchplayer(playersao,
puncher, time_from_last_punch, toolcap, dir,
hitparams.hp);
if (!damage_handled) {
setHP((s32)getHP() - (s32)hitparams.hp,
PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, puncher));
} else { // override client prediction
if (puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
// create message and add to list
sendPunchCommand();
}
}
actionstream << puncher->getDescription() << " (id=" << puncher->getId() <<
", hp=" << puncher->getHP() << ") punched " <<
getDescription() << " (id=" << m_id << ", hp=" << m_hp <<
"), damage=" << (old_hp - (s32)getHP()) <<
(damage_handled ? " (handled by Lua)" : "") << std::endl;
return hitparams.wear;
}
void PlayerSAO::setHP(s32 hp, const PlayerHPChangeReason &reason)
{
s32 oldhp = m_hp;
hp = rangelim(hp, 0, m_prop.hp_max);
if (oldhp != hp) {
s32 hp_change = m_env->getScriptIface()->on_player_hpchange(this, hp - oldhp, reason);
if (hp_change == 0)
return;
hp = rangelim(oldhp + hp_change, 0, m_prop.hp_max);
}
if (hp < oldhp && isImmortal())
return;
m_hp = hp;
// Update properties on death
if ((hp == 0) != (oldhp == 0))
m_properties_sent = false;
}
void PlayerSAO::setBreath(const u16 breath, bool send)
{
if (m_player && breath != m_breath)
m_player->setDirty(true);
m_breath = rangelim(breath, 0, m_prop.breath_max);
if (send)
m_env->getGameDef()->SendPlayerBreath(this);
}
Inventory *PlayerSAO::getInventory() const
{
return m_player ? &m_player->inventory : nullptr;
}
InventoryLocation PlayerSAO::getInventoryLocation() const
{
InventoryLocation loc;
loc.setPlayer(m_player->getName());
return loc;
}
u16 PlayerSAO::getWieldIndex() const
{
return m_player->getWieldIndex();
}
ItemStack PlayerSAO::getWieldedItem(ItemStack *selected, ItemStack *hand) const
{
return m_player->getWieldedItem(selected, hand);
}
bool PlayerSAO::setWieldedItem(const ItemStack &item)
{
InventoryList *mlist = m_player->inventory.getList(getWieldList());
if (mlist) {
mlist->changeItem(m_player->getWieldIndex(), item);
return true;
}
return false;
}
void PlayerSAO::disconnected()
{
m_peer_id = PEER_ID_INEXISTENT;
m_pending_removal = true;
}
void PlayerSAO::unlinkPlayerSessionAndSave()
{
assert(m_player->getPlayerSAO() == this);
m_player->setPeerId(PEER_ID_INEXISTENT);
m_env->savePlayer(m_player);
m_player->setPlayerSAO(NULL);
m_env->removePlayer(m_player);
}
std::string PlayerSAO::getPropertyPacket()
{
m_prop.is_visible = (true);
return generateSetPropertiesCommand(m_prop);
}
void PlayerSAO::setMaxSpeedOverride(const v3f &vel)
{
if (m_max_speed_override_time == 0.0f)
m_max_speed_override = vel;
else
m_max_speed_override += vel;
if (m_player) {
float accel = MYMIN(m_player->movement_acceleration_default,
m_player->movement_acceleration_air);
m_max_speed_override_time = m_max_speed_override.getLength() / accel / BS;
}
}
bool PlayerSAO::checkMovementCheat()
{
if (isAttached() || m_is_singleplayer ||
g_settings->getBool("disable_anticheat")) {
m_last_good_position = m_base_position;
return false;
}
bool cheated = false;
/*
Check player movements
NOTE: Actually the server should handle player physics like the
client does and compare player's position to what is calculated
on our side. This is required when eg. players fly due to an
explosion. Altough a node-based alternative might be possible
too, and much more lightweight.
*/
float override_max_H, override_max_V;
if (m_max_speed_override_time > 0.0f) {
override_max_H = MYMAX(fabs(m_max_speed_override.X), fabs(m_max_speed_override.Z));
override_max_V = fabs(m_max_speed_override.Y);
} else {
override_max_H = override_max_V = 0.0f;
}
float player_max_walk = 0; // horizontal movement
float player_max_jump = 0; // vertical upwards movement
if (m_privs.count("fast") != 0)
player_max_walk = m_player->movement_speed_fast; // Fast speed
else
player_max_walk = m_player->movement_speed_walk; // Normal speed
player_max_walk *= m_physics_override_speed;
player_max_walk = MYMAX(player_max_walk, override_max_H);
player_max_jump = m_player->movement_speed_jump * m_physics_override_jump;
// FIXME: Bouncy nodes cause practically unbound increase in Y speed,
// until this can be verified correctly, tolerate higher jumping speeds
player_max_jump *= 2.0;
player_max_jump = MYMAX(player_max_jump, override_max_V);
// Don't divide by zero!
if (player_max_walk < 0.0001f)
player_max_walk = 0.0001f;
if (player_max_jump < 0.0001f)
player_max_jump = 0.0001f;
v3f diff = (m_base_position - m_last_good_position);
float d_vert = diff.Y;
diff.Y = 0;
float d_horiz = diff.getLength();
float required_time = d_horiz / player_max_walk;
// FIXME: Checking downwards movement is not easily possible currently,
// the server could calculate speed differences to examine the gravity
if (d_vert > 0) {
// In certain cases (water, ladders) walking speed is applied vertically
float s = MYMAX(player_max_jump, player_max_walk);
required_time = MYMAX(required_time, d_vert / s);
}
if (m_move_pool.grab(required_time)) {
m_last_good_position = m_base_position;
} else {
const float LAG_POOL_MIN = 5.0;
float lag_pool_max = m_env->getMaxLagEstimate() * 2.0;
lag_pool_max = MYMAX(lag_pool_max, LAG_POOL_MIN);
if (m_time_from_last_teleport > lag_pool_max) {
actionstream << "Player " << m_player->getName()
<< " moved too fast; resetting position"
<< std::endl;
cheated = true;
}
setBasePosition(m_last_good_position);
}
return cheated;
}
bool PlayerSAO::getCollisionBox(aabb3f *toset) const
{
//update collision box
toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;
toset->MinEdge += m_base_position;
toset->MaxEdge += m_base_position;
return true;
}
bool PlayerSAO::getSelectionBox(aabb3f *toset) const
{
if (!m_prop.is_visible || !m_prop.pointable) {
return false;
}
toset->MinEdge = m_prop.selectionbox.MinEdge * BS;
toset->MaxEdge = m_prop.selectionbox.MaxEdge * BS;
return true;
}
float PlayerSAO::getZoomFOV() const
{
return m_prop.zoom_fov;
}

325
src/server/player_sao.h Normal file
View File

@ -0,0 +1,325 @@
/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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<std::string> &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<std::string> &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<std::string> 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)
{}
};

4
src/server/unit_sao.cpp
View File

@ -22,10 +22,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "scripting_server.h"
#include "serverenvironment.h"
/*
UnitSAO
*/
UnitSAO::UnitSAO(ServerEnvironment *env, v3f pos) : ServerActiveObject(env, pos)
{
// Initialize something to armor groups

4
src/serverenvironment.cpp
View File

@ -17,8 +17,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <algorithm>
#include "serverenvironment.h"
#include "content_sao.h"
#include "settings.h"
#include "log.h"
#include "mapblock.h"
@ -44,7 +44,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#if USE_POSTGRESQL
#include "database/database-postgresql.h"
#endif
#include <algorithm>
#include "server/player_sao.h"
#define LBM_NAME_ALLOWED_CHARS "abcdefghijklmnopqrstuvwxyz0123456789_:"