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minetest/src/client.cpp

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/*
Minetest-c55
Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
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 "client.h"
#include <iostream>
#include "clientserver.h"
#include "jmutexautolock.h"
#include "main.h"
#include <sstream>
#include "porting.h"
#include "mapsector.h"
#include "mapblock_mesh.h"
#include "mapblock.h"
#include "settings.h"
#include "profiler.h"
#include "log.h"
#include "nodemetadata.h"
#include "nodedef.h"
#include "itemdef.h"
#include "shader.h"
#include <IFileSystem.h>
#include "sha1.h"
#include "base64.h"
#include "clientmap.h"
#include "filecache.h"
#include "sound.h"
#include "util/string.h"
#include "hex.h"
#include "IMeshCache.h"
#include "util/serialize.h"
#include "config.h"
#if USE_CURL
#include <curl/curl.h>
#endif
static std::string getMediaCacheDir()
{
return porting::path_user + DIR_DELIM + "cache" + DIR_DELIM + "media";
}
/*
QueuedMeshUpdate
*/
QueuedMeshUpdate::QueuedMeshUpdate():
p(-1337,-1337,-1337),
data(NULL),
ack_block_to_server(false)
{
}
QueuedMeshUpdate::~QueuedMeshUpdate()
{
if(data)
delete data;
}
/*
MeshUpdateQueue
*/
MeshUpdateQueue::MeshUpdateQueue()
{
m_mutex.Init();
}
MeshUpdateQueue::~MeshUpdateQueue()
{
JMutexAutoLock lock(m_mutex);
for(std::vector<QueuedMeshUpdate*>::iterator
i = m_queue.begin();
i != m_queue.end(); i++)
{
QueuedMeshUpdate *q = *i;
delete q;
}
}
/*
peer_id=0 adds with nobody to send to
*/
void MeshUpdateQueue::addBlock(v3s16 p, MeshMakeData *data, bool ack_block_to_server, bool urgent)
{
DSTACK(__FUNCTION_NAME);
assert(data);
JMutexAutoLock lock(m_mutex);
if(urgent)
m_urgents.insert(p);
/*
Find if block is already in queue.
If it is, update the data and quit.
*/
for(std::vector<QueuedMeshUpdate*>::iterator
i = m_queue.begin();
i != m_queue.end(); i++)
{
QueuedMeshUpdate *q = *i;
if(q->p == p)
{
if(q->data)
delete q->data;
q->data = data;
if(ack_block_to_server)
q->ack_block_to_server = true;
return;
}
}
/*
Add the block
*/
QueuedMeshUpdate *q = new QueuedMeshUpdate;
q->p = p;
q->data = data;
q->ack_block_to_server = ack_block_to_server;
m_queue.push_back(q);
}
// Returned pointer must be deleted
// Returns NULL if queue is empty
QueuedMeshUpdate * MeshUpdateQueue::pop()
{
JMutexAutoLock lock(m_mutex);
bool must_be_urgent = !m_urgents.empty();
for(std::vector<QueuedMeshUpdate*>::iterator
i = m_queue.begin();
i != m_queue.end(); i++)
{
QueuedMeshUpdate *q = *i;
if(must_be_urgent && m_urgents.count(q->p) == 0)
continue;
m_queue.erase(i);
m_urgents.erase(q->p);
return q;
}
return NULL;
}
/*
MeshUpdateThread
*/
void * MeshUpdateThread::Thread()
{
ThreadStarted();
log_register_thread("MeshUpdateThread");
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
while(getRun())
{
/*// Wait for output queue to flush.
// Allow 2 in queue, this makes less frametime jitter.
// Umm actually, there is no much difference
if(m_queue_out.size() >= 2)
{
sleep_ms(3);
continue;
}*/
QueuedMeshUpdate *q = m_queue_in.pop();
if(q == NULL)
{
sleep_ms(3);
continue;
}
ScopeProfiler sp(g_profiler, "Client: Mesh making");
MapBlockMesh *mesh_new = new MapBlockMesh(q->data);
if(mesh_new->getMesh()->getMeshBufferCount() == 0)
{
delete mesh_new;
mesh_new = NULL;
}
MeshUpdateResult r;
r.p = q->p;
r.mesh = mesh_new;
r.ack_block_to_server = q->ack_block_to_server;
/*infostream<<"MeshUpdateThread: Processed "
<<"("<<q->p.X<<","<<q->p.Y<<","<<q->p.Z<<")"
<<std::endl;*/
m_queue_out.push_back(r);
delete q;
}
END_DEBUG_EXCEPTION_HANDLER(errorstream)
return NULL;
}
void * MediaFetchThread::Thread()
{
ThreadStarted();
log_register_thread("MediaFetchThread");
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
#if USE_CURL
CURL *curl;
CURLcode res;
for (core::list<MediaRequest>::Iterator i = m_file_requests.begin();
i != m_file_requests.end(); i++) {
curl = curl_easy_init();
assert(curl);
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl, CURLOPT_URL, (m_remote_url + i->name).c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
std::ostringstream stream;
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &stream);
res = curl_easy_perform(curl);
if (res == CURLE_OK) {
std::string data = stream.str();
m_file_data.push_back(make_pair(i->name, data));
} else {
m_failed.push_back(*i);
infostream << "cURL request failed for " << i->name << std::endl;
}
curl_easy_cleanup(curl);
}
#endif
END_DEBUG_EXCEPTION_HANDLER(errorstream)
return NULL;
}
Client::Client(
IrrlichtDevice *device,
const char *playername,
std::string password,
MapDrawControl &control,
IWritableTextureSource *tsrc,
IWritableShaderSource *shsrc,
IWritableItemDefManager *itemdef,
IWritableNodeDefManager *nodedef,
ISoundManager *sound,
MtEventManager *event
):
m_tsrc(tsrc),
m_shsrc(shsrc),
m_itemdef(itemdef),
m_nodedef(nodedef),
m_sound(sound),
m_event(event),
m_mesh_update_thread(this),
m_env(
new ClientMap(this, this, control,
device->getSceneManager()->getRootSceneNode(),
device->getSceneManager(), 666),
device->getSceneManager(),
tsrc, this, device
),
m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
m_device(device),
m_server_ser_ver(SER_FMT_VER_INVALID),
m_playeritem(0),
m_inventory_updated(false),
m_inventory_from_server(NULL),
m_inventory_from_server_age(0.0),
m_animation_time(0),
m_crack_level(-1),
m_crack_pos(0,0,0),
m_map_seed(0),
m_password(password),
m_access_denied(false),
m_media_cache(getMediaCacheDir()),
m_media_receive_started(false),
m_media_count(0),
m_media_received_count(0),
m_itemdef_received(false),
m_nodedef_received(false),
m_time_of_day_set(false),
m_last_time_of_day_f(-1),
m_time_of_day_update_timer(0),
m_recommended_send_interval(0.1),
m_removed_sounds_check_timer(0)
{
m_packetcounter_timer = 0.0;
//m_delete_unused_sectors_timer = 0.0;
m_connection_reinit_timer = 0.0;
m_avg_rtt_timer = 0.0;
m_playerpos_send_timer = 0.0;
m_ignore_damage_timer = 0.0;
// Build main texture atlas, now that the GameDef exists (that is, us)
if(g_settings->getBool("enable_texture_atlas"))
m_tsrc->buildMainAtlas(this);
else
infostream<<"Not building texture atlas."<<std::endl;
/*
Add local player
*/
{
Player *player = new LocalPlayer(this);
player->updateName(playername);
m_env.addPlayer(player);
}
for (size_t i = 0; i < g_settings->getU16("media_fetch_threads"); ++i)
m_media_fetch_threads.push_back(new MediaFetchThread(this));
}
Client::~Client()
{
{
//JMutexAutoLock conlock(m_con_mutex); //bulk comment-out
m_con.Disconnect();
}
m_mesh_update_thread.setRun(false);
while(m_mesh_update_thread.IsRunning())
sleep_ms(100);
delete m_inventory_from_server;
// Delete detached inventories
{
for(std::map<std::string, Inventory*>::iterator
i = m_detached_inventories.begin();
i != m_detached_inventories.end(); i++){
delete i->second;
}
}
for (core::list<MediaFetchThread*>::Iterator i = m_media_fetch_threads.begin();
i != m_media_fetch_threads.end(); i++)
delete *i;
}
void Client::connect(Address address)
{
DSTACK(__FUNCTION_NAME);
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
m_con.SetTimeoutMs(0);
m_con.Connect(address);
}
bool Client::connectedAndInitialized()
{
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
if(m_con.Connected() == false)
return false;
if(m_server_ser_ver == SER_FMT_VER_INVALID)
return false;
return true;
}
void Client::step(float dtime)
{
DSTACK(__FUNCTION_NAME);
// Limit a bit
if(dtime > 2.0)
dtime = 2.0;
if(m_ignore_damage_timer > dtime)
m_ignore_damage_timer -= dtime;
else
m_ignore_damage_timer = 0.0;
m_animation_time += dtime;
if(m_animation_time > 60.0)
m_animation_time -= 60.0;
m_time_of_day_update_timer += dtime;
//infostream<<"Client steps "<<dtime<<std::endl;
{
//TimeTaker timer("ReceiveAll()", m_device);
// 0ms
ReceiveAll();
}
{
//TimeTaker timer("m_con_mutex + m_con.RunTimeouts()", m_device);
// 0ms
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
m_con.RunTimeouts(dtime);
}
/*
Packet counter
*/
{
float &counter = m_packetcounter_timer;
counter -= dtime;
if(counter <= 0.0)
{
counter = 20.0;
infostream<<"Client packetcounter (20s):"<<std::endl;
m_packetcounter.print(infostream);
m_packetcounter.clear();
}
}
// Get connection status
bool connected = connectedAndInitialized();
#if 0
{
/*
Delete unused sectors
NOTE: This jams the game for a while because deleting sectors
clear caches
*/
float &counter = m_delete_unused_sectors_timer;
counter -= dtime;
if(counter <= 0.0)
{
// 3 minute interval
//counter = 180.0;
counter = 60.0;
//JMutexAutoLock lock(m_env_mutex); //bulk comment-out
core::list<v3s16> deleted_blocks;
float delete_unused_sectors_timeout =
g_settings->getFloat("client_delete_unused_sectors_timeout");
// Delete sector blocks
/*u32 num = m_env.getMap().unloadUnusedData
(delete_unused_sectors_timeout,
true, &deleted_blocks);*/
// Delete whole sectors
m_env.getMap().unloadUnusedData
(delete_unused_sectors_timeout,
&deleted_blocks);
if(deleted_blocks.size() > 0)
{
/*infostream<<"Client: Deleted blocks of "<<num
<<" unused sectors"<<std::endl;*/
/*infostream<<"Client: Deleted "<<num
<<" unused sectors"<<std::endl;*/
/*
Send info to server
*/
// Env is locked so con can be locked.
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
core::list<v3s16>::Iterator i = deleted_blocks.begin();
core::list<v3s16> sendlist;
for(;;)
{
if(sendlist.size() == 255 || i == deleted_blocks.end())
{
if(sendlist.size() == 0)
break;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u32 replysize = 2+1+6*sendlist.size();
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOSERVER_DELETEDBLOCKS);
reply[2] = sendlist.size();
u32 k = 0;
for(core::list<v3s16>::Iterator
j = sendlist.begin();
j != sendlist.end(); j++)
{
writeV3S16(&reply[2+1+6*k], *j);
k++;
}
m_con.Send(PEER_ID_SERVER, 1, reply, true);
if(i == deleted_blocks.end())
break;
sendlist.clear();
}
sendlist.push_back(*i);
i++;
}
}
}
}
#endif
if(connected == false)
{
float &counter = m_connection_reinit_timer;
counter -= dtime;
if(counter <= 0.0)
{
counter = 2.0;
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
Player *myplayer = m_env.getLocalPlayer();
assert(myplayer != NULL);
// Send TOSERVER_INIT
// [0] u16 TOSERVER_INIT
// [2] u8 SER_FMT_VER_HIGHEST
// [3] u8[20] player_name
// [23] u8[28] password (new in some version)
// [51] u16 minimum supported network protocol version (added sometime)
// [53] u16 maximum supported network protocol version (added later than the previous one)
SharedBuffer<u8> data(2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2+2);
writeU16(&data[0], TOSERVER_INIT);
writeU8(&data[2], SER_FMT_VER_HIGHEST);
memset((char*)&data[3], 0, PLAYERNAME_SIZE);
snprintf((char*)&data[3], PLAYERNAME_SIZE, "%s", myplayer->getName());
/*infostream<<"Client: sending initial password hash: \""<<m_password<<"\""
<<std::endl;*/
memset((char*)&data[23], 0, PASSWORD_SIZE);
snprintf((char*)&data[23], PASSWORD_SIZE, "%s", m_password.c_str());
writeU16(&data[51], CLIENT_PROTOCOL_VERSION_MIN);
writeU16(&data[53], CLIENT_PROTOCOL_VERSION_MAX);
// Send as unreliable
Send(0, data, false);
}
// Not connected, return
return;
}
/*
Do stuff if connected
*/
/*
Run Map's timers and unload unused data
*/
const float map_timer_and_unload_dtime = 5.25;
if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime))
{
ScopeProfiler sp(g_profiler, "Client: map timer and unload");
core::list<v3s16> deleted_blocks;
m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
g_settings->getFloat("client_unload_unused_data_timeout"),
&deleted_blocks);
/*if(deleted_blocks.size() > 0)
infostream<<"Client: Unloaded "<<deleted_blocks.size()
<<" unused blocks"<<std::endl;*/
/*
Send info to server
NOTE: This loop is intentionally iterated the way it is.
*/
core::list<v3s16>::Iterator i = deleted_blocks.begin();
core::list<v3s16> sendlist;
for(;;)
{
if(sendlist.size() == 255 || i == deleted_blocks.end())
{
if(sendlist.size() == 0)
break;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u32 replysize = 2+1+6*sendlist.size();
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOSERVER_DELETEDBLOCKS);
reply[2] = sendlist.size();
u32 k = 0;
for(core::list<v3s16>::Iterator
j = sendlist.begin();
j != sendlist.end(); j++)
{
writeV3S16(&reply[2+1+6*k], *j);
k++;
}
m_con.Send(PEER_ID_SERVER, 1, reply, true);
if(i == deleted_blocks.end())
break;
sendlist.clear();
}
sendlist.push_back(*i);
i++;
}
}
/*
Handle environment
*/
{
// 0ms
//JMutexAutoLock lock(m_env_mutex); //bulk comment-out
// Control local player (0ms)
LocalPlayer *player = m_env.getLocalPlayer();
assert(player != NULL);
player->applyControl(dtime);
//TimeTaker envtimer("env step", m_device);
// Step environment
m_env.step(dtime);
/*
Get events
*/
for(;;)
{
ClientEnvEvent event = m_env.getClientEvent();
if(event.type == CEE_NONE)
{
break;
}
else if(event.type == CEE_PLAYER_DAMAGE)
{
if(m_ignore_damage_timer <= 0)
{
u8 damage = event.player_damage.amount;
if(event.player_damage.send_to_server)
sendDamage(damage);
// Add to ClientEvent queue
ClientEvent event;
event.type = CE_PLAYER_DAMAGE;
event.player_damage.amount = damage;
m_client_event_queue.push_back(event);
}
}
}
}
/*
Print some info
*/
{
float &counter = m_avg_rtt_timer;
counter += dtime;
if(counter >= 10)
{
counter = 0.0;
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
// connectedAndInitialized() is true, peer exists.
float avg_rtt = m_con.GetPeerAvgRTT(PEER_ID_SERVER);
infostream<<"Client: avg_rtt="<<avg_rtt<<std::endl;
}
}
/*
Send player position to server
*/
{
float &counter = m_playerpos_send_timer;
counter += dtime;
if(counter >= m_recommended_send_interval)
{
counter = 0.0;
sendPlayerPos();
}
}
/*
Replace updated meshes
*/
{
//JMutexAutoLock lock(m_env_mutex); //bulk comment-out
//TimeTaker timer("** Processing mesh update result queue");
// 0ms
/*infostream<<"Mesh update result queue size is "
<<m_mesh_update_thread.m_queue_out.size()
<<std::endl;*/
int num_processed_meshes = 0;
while(m_mesh_update_thread.m_queue_out.size() > 0)
{
num_processed_meshes++;
MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_front();
MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
if(block)
{
//JMutexAutoLock lock(block->mesh_mutex);
// Delete the old mesh
if(block->mesh != NULL)
{
// TODO: Remove hardware buffers of meshbuffers of block->mesh
delete block->mesh;
block->mesh = NULL;
}
// Replace with the new mesh
block->mesh = r.mesh;
}
if(r.ack_block_to_server)
{
/*infostream<<"Client: ACK block ("<<r.p.X<<","<<r.p.Y
<<","<<r.p.Z<<")"<<std::endl;*/
/*
Acknowledge block
*/
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u32 replysize = 2+1+6;
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOSERVER_GOTBLOCKS);
reply[2] = 1;
writeV3S16(&reply[3], r.p);
// Send as reliable
m_con.Send(PEER_ID_SERVER, 1, reply, true);
}
}
if(num_processed_meshes > 0)
g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
}
/*
Load fetched media
*/
if (m_media_receive_started) {
bool all_stopped = true;
for (core::list<MediaFetchThread*>::Iterator thread = m_media_fetch_threads.begin();
thread != m_media_fetch_threads.end(); thread++) {
all_stopped &= !(*thread)->IsRunning();
while ((*thread)->m_file_data.size() > 0) {
std::pair <std::string, std::string> out = (*thread)->m_file_data.pop_front();
++m_media_received_count;
bool success = loadMedia(out.second, out.first);
if(success){
verbosestream<<"Client: Loaded received media: "
<<"\""<<out.first<<"\". Caching."<<std::endl;
} else{
infostream<<"Client: Failed to load received media: "
<<"\""<<out.first<<"\". Not caching."<<std::endl;
continue;
}
bool did = fs::CreateAllDirs(getMediaCacheDir());
if(!did){
errorstream<<"Could not create media cache directory"
<<std::endl;
}
{
core::map<std::string, std::string>::Node *n;
n = m_media_name_sha1_map.find(out.first);
if(n == NULL)
errorstream<<"The server sent a file that has not "
<<"been announced."<<std::endl;
else
m_media_cache.update_sha1(out.second);
}
}
}
if (all_stopped) {
core::list<MediaRequest> fetch_failed;
for (core::list<MediaFetchThread*>::Iterator thread = m_media_fetch_threads.begin();
thread != m_media_fetch_threads.end(); thread++) {
for (core::list<MediaRequest>::Iterator request = (*thread)->m_failed.begin();
request != (*thread)->m_failed.end(); request++)
fetch_failed.push_back(*request);
(*thread)->m_failed.clear();
}
if (fetch_failed.size() > 0) {
infostream << "Failed to remote-fetch " << fetch_failed.size() << " files. "
<< "Requesting them the usual way." << std::endl;
request_media(fetch_failed);
}
}
}
/*
If the server didn't update the inventory in a while, revert
the local inventory (so the player notices the lag problem
and knows something is wrong).
*/
if(m_inventory_from_server)
{
float interval = 10.0;
float count_before = floor(m_inventory_from_server_age / interval);
m_inventory_from_server_age += dtime;
float count_after = floor(m_inventory_from_server_age / interval);
if(count_after != count_before)
{
// Do this every <interval> seconds after TOCLIENT_INVENTORY
// Reset the locally changed inventory to the authoritative inventory
Player *player = m_env.getLocalPlayer();
player->inventory = *m_inventory_from_server;
m_inventory_updated = true;
}
}
/*
Update positions of sounds attached to objects
*/
{
for(std::map<int, u16>::iterator
i = m_sounds_to_objects.begin();
i != m_sounds_to_objects.end(); i++)
{
int client_id = i->first;
u16 object_id = i->second;
ClientActiveObject *cao = m_env.getActiveObject(object_id);
if(!cao)
continue;
v3f pos = cao->getPosition();
m_sound->updateSoundPosition(client_id, pos);
}
}
/*
Handle removed remotely initiated sounds
*/
m_removed_sounds_check_timer += dtime;
if(m_removed_sounds_check_timer >= 2.32)
{
m_removed_sounds_check_timer = 0;
// Find removed sounds and clear references to them
std::set<s32> removed_server_ids;
for(std::map<s32, int>::iterator
i = m_sounds_server_to_client.begin();
i != m_sounds_server_to_client.end();)
{
s32 server_id = i->first;
int client_id = i->second;
i++;
if(!m_sound->soundExists(client_id)){
m_sounds_server_to_client.erase(server_id);
m_sounds_client_to_server.erase(client_id);
m_sounds_to_objects.erase(client_id);
removed_server_ids.insert(server_id);
}
}
// Sync to server
if(removed_server_ids.size() != 0)
{
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOSERVER_REMOVED_SOUNDS);
writeU16(os, removed_server_ids.size());
for(std::set<s32>::iterator i = removed_server_ids.begin();
i != removed_server_ids.end(); i++)
writeS32(os, *i);
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
}
}
bool Client::loadMedia(const std::string &data, const std::string &filename)
{
// Silly irrlicht's const-incorrectness
Buffer<char> data_rw(data.c_str(), data.size());
std::string name;
const char *image_ext[] = {
".png", ".jpg", ".bmp", ".tga",
".pcx", ".ppm", ".psd", ".wal", ".rgb",
NULL
};
name = removeStringEnd(filename, image_ext);
if(name != "")
{
verbosestream<<"Client: Attempting to load image "
<<"file \""<<filename<<"\""<<std::endl;
io::IFileSystem *irrfs = m_device->getFileSystem();
video::IVideoDriver *vdrv = m_device->getVideoDriver();
// Create an irrlicht memory file
io::IReadFile *rfile = irrfs->createMemoryReadFile(
*data_rw, data_rw.getSize(), "_tempreadfile");
assert(rfile);
// Read image
video::IImage *img = vdrv->createImageFromFile(rfile);
if(!img){
errorstream<<"Client: Cannot create image from data of "
<<"file \""<<filename<<"\""<<std::endl;
rfile->drop();
return false;
}
else {
m_tsrc->insertSourceImage(filename, img);
img->drop();
rfile->drop();
return true;
}
}
const char *sound_ext[] = {
".0.ogg", ".1.ogg", ".2.ogg", ".3.ogg", ".4.ogg",
".5.ogg", ".6.ogg", ".7.ogg", ".8.ogg", ".9.ogg",
".ogg", NULL
};
name = removeStringEnd(filename, sound_ext);
if(name != "")
{
verbosestream<<"Client: Attempting to load sound "
<<"file \""<<filename<<"\""<<std::endl;
m_sound->loadSoundData(name, data);
return true;
}
const char *model_ext[] = {
".x", ".b3d", ".md2", ".obj",
NULL
};
name = removeStringEnd(filename, model_ext);
if(name != "")
{
verbosestream<<"Client: Storing model into Irrlicht: "
<<"\""<<filename<<"\""<<std::endl;
io::IFileSystem *irrfs = m_device->getFileSystem();
io::IReadFile *rfile = irrfs->createMemoryReadFile(
*data_rw, data_rw.getSize(), filename.c_str());
assert(rfile);
scene::ISceneManager *smgr = m_device->getSceneManager();
scene::IAnimatedMesh *mesh = smgr->getMesh(rfile);
smgr->getMeshCache()->addMesh(filename.c_str(), mesh);
return true;
}
errorstream<<"Client: Don't know how to load file \""
<<filename<<"\""<<std::endl;
return false;
}
// Virtual methods from con::PeerHandler
void Client::peerAdded(con::Peer *peer)
{
infostream<<"Client::peerAdded(): peer->id="
<<peer->id<<std::endl;
}
void Client::deletingPeer(con::Peer *peer, bool timeout)
{
infostream<<"Client::deletingPeer(): "
"Server Peer is getting deleted "
<<"(timeout="<<timeout<<")"<<std::endl;
}
/*
u16 command
u16 number of files requested
for each file {
u16 length of name
string name
}
*/
void Client::request_media(const core::list<MediaRequest> &file_requests)
{
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOSERVER_REQUEST_MEDIA);
writeU16(os, file_requests.size());
for(core::list<MediaRequest>::ConstIterator i = file_requests.begin();
i != file_requests.end(); i++) {
os<<serializeString(i->name);
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
infostream<<"Client: Sending media request list to server ("
<<file_requests.size()<<" files)"<<std::endl;
}
void Client::ReceiveAll()
{
DSTACK(__FUNCTION_NAME);
u32 start_ms = porting::getTimeMs();
for(;;)
{
// Limit time even if there would be huge amounts of data to
// process
if(porting::getTimeMs() > start_ms + 100)
break;
try{
Receive();
g_profiler->graphAdd("client_received_packets", 1);
}
catch(con::NoIncomingDataException &e)
{
break;
}
catch(con::InvalidIncomingDataException &e)
{
infostream<<"Client::ReceiveAll(): "
"InvalidIncomingDataException: what()="
<<e.what()<<std::endl;
}
}
}
void Client::Receive()
{
DSTACK(__FUNCTION_NAME);
SharedBuffer<u8> data;
u16 sender_peer_id;
u32 datasize;
{
//TimeTaker t1("con mutex and receive", m_device);
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
datasize = m_con.Receive(sender_peer_id, data);
}
//TimeTaker t1("ProcessData", m_device);
ProcessData(*data, datasize, sender_peer_id);
}
/*
sender_peer_id given to this shall be quaranteed to be a valid peer
*/
void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
{
DSTACK(__FUNCTION_NAME);
// Ignore packets that don't even fit a command
if(datasize < 2)
{
m_packetcounter.add(60000);
return;
}
ToClientCommand command = (ToClientCommand)readU16(&data[0]);
//infostream<<"Client: received command="<<command<<std::endl;
m_packetcounter.add((u16)command);
/*
If this check is removed, be sure to change the queue
system to know the ids
*/
if(sender_peer_id != PEER_ID_SERVER)
{
infostream<<"Client::ProcessData(): Discarding data not "
"coming from server: peer_id="<<sender_peer_id
<<std::endl;
return;
}
u8 ser_version = m_server_ser_ver;
//infostream<<"Client received command="<<(int)command<<std::endl;
if(command == TOCLIENT_INIT)
{
if(datasize < 3)
return;
u8 deployed = data[2];
infostream<<"Client: TOCLIENT_INIT received with "
"deployed="<<((int)deployed&0xff)<<std::endl;
if(deployed < SER_FMT_VER_LOWEST
|| deployed > SER_FMT_VER_HIGHEST)
{
infostream<<"Client: TOCLIENT_INIT: Server sent "
<<"unsupported ser_fmt_ver"<<std::endl;
return;
}
m_server_ser_ver = deployed;
// Get player position
v3s16 playerpos_s16(0, BS*2+BS*20, 0);
if(datasize >= 2+1+6)
playerpos_s16 = readV3S16(&data[2+1]);
v3f playerpos_f = intToFloat(playerpos_s16, BS) - v3f(0, BS/2, 0);
{ //envlock
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
// Set player position
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
player->setPosition(playerpos_f);
}
if(datasize >= 2+1+6+8)
{
// Get map seed
m_map_seed = readU64(&data[2+1+6]);
infostream<<"Client: received map seed: "<<m_map_seed<<std::endl;
}
if(datasize >= 2+1+6+8+4)
{
// Get map seed
m_recommended_send_interval = readF1000(&data[2+1+6+8]);
infostream<<"Client: received recommended send interval "
<<m_recommended_send_interval<<std::endl;
}
// Reply to server
u32 replysize = 2;
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOSERVER_INIT2);
// Send as reliable
m_con.Send(PEER_ID_SERVER, 1, reply, true);
return;
}
if(command == TOCLIENT_ACCESS_DENIED)
{
// The server didn't like our password. Note, this needs
// to be processed even if the serialisation format has
// not been agreed yet, the same as TOCLIENT_INIT.
m_access_denied = true;
m_access_denied_reason = L"Unknown";
if(datasize >= 4)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
m_access_denied_reason = deSerializeWideString(is);
}
return;
}
if(ser_version == SER_FMT_VER_INVALID)
{
infostream<<"Client: Server serialization"
" format invalid or not initialized."
" Skipping incoming command="<<command<<std::endl;
return;
}
// Just here to avoid putting the two if's together when
// making some copypasta
{}
if(command == TOCLIENT_REMOVENODE)
{
if(datasize < 8)
return;
v3s16 p;
p.X = readS16(&data[2]);
p.Y = readS16(&data[4]);
p.Z = readS16(&data[6]);
//TimeTaker t1("TOCLIENT_REMOVENODE");
removeNode(p);
}
else if(command == TOCLIENT_ADDNODE)
{
if(datasize < 8 + MapNode::serializedLength(ser_version))
return;
v3s16 p;
p.X = readS16(&data[2]);
p.Y = readS16(&data[4]);
p.Z = readS16(&data[6]);
//TimeTaker t1("TOCLIENT_ADDNODE");
MapNode n;
n.deSerialize(&data[8], ser_version);
addNode(p, n);
}
else if(command == TOCLIENT_BLOCKDATA)
{
// Ignore too small packet
if(datasize < 8)
return;
v3s16 p;
p.X = readS16(&data[2]);
p.Y = readS16(&data[4]);
p.Z = readS16(&data[6]);
/*infostream<<"Client: Thread: BLOCKDATA for ("
<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
/*infostream<<"Client: Thread: BLOCKDATA for ("
<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
std::string datastring((char*)&data[8], datasize-8);
std::istringstream istr(datastring, std::ios_base::binary);
MapSector *sector;
MapBlock *block;
v2s16 p2d(p.X, p.Z);
sector = m_env.getMap().emergeSector(p2d);
assert(sector->getPos() == p2d);
//TimeTaker timer("MapBlock deSerialize");
// 0ms
block = sector->getBlockNoCreateNoEx(p.Y);
if(block)
{
/*
Update an existing block
*/
//infostream<<"Updating"<<std::endl;
block->deSerialize(istr, ser_version, false);
}
else
{
/*
Create a new block
*/
//infostream<<"Creating new"<<std::endl;
block = new MapBlock(&m_env.getMap(), p, this);
block->deSerialize(istr, ser_version, false);
sector->insertBlock(block);
}
#if 0
/*
Acknowledge block
*/
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u32 replysize = 2+1+6;
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOSERVER_GOTBLOCKS);
reply[2] = 1;
writeV3S16(&reply[3], p);
// Send as reliable
m_con.Send(PEER_ID_SERVER, 1, reply, true);
#endif
/*
Add it to mesh update queue and set it to be acknowledged after update.
*/
//infostream<<"Adding mesh update task for received block"<<std::endl;
addUpdateMeshTaskWithEdge(p, true);
}
else if(command == TOCLIENT_INVENTORY)
{
if(datasize < 3)
return;
//TimeTaker t1("Parsing TOCLIENT_INVENTORY", m_device);
{ //envlock
//TimeTaker t2("mutex locking", m_device);
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
//t2.stop();
//TimeTaker t3("istringstream init", m_device);
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
//t3.stop();
//m_env.printPlayers(infostream);
//TimeTaker t4("player get", m_device);
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
//t4.stop();
//TimeTaker t1("inventory.deSerialize()", m_device);
player->inventory.deSerialize(is);
//t1.stop();
m_inventory_updated = true;
delete m_inventory_from_server;
m_inventory_from_server = new Inventory(player->inventory);
m_inventory_from_server_age = 0.0;
//infostream<<"Client got player inventory:"<<std::endl;
//player->inventory.print(infostream);
}
}
else if(command == TOCLIENT_TIME_OF_DAY)
{
if(datasize < 4)
return;
u16 time_of_day = readU16(&data[2]);
time_of_day = time_of_day % 24000;
//infostream<<"Client: time_of_day="<<time_of_day<<std::endl;
float time_speed = 0;
if(datasize >= 2 + 2 + 4){
time_speed = readF1000(&data[4]);
} else {
// Old message; try to approximate speed of time by ourselves
float time_of_day_f = (float)time_of_day / 24000.0;
float tod_diff_f = 0;
if(time_of_day_f < 0.2 && m_last_time_of_day_f > 0.8)
tod_diff_f = time_of_day_f - m_last_time_of_day_f + 1.0;
else
tod_diff_f = time_of_day_f - m_last_time_of_day_f;
m_last_time_of_day_f = time_of_day_f;
float time_diff = m_time_of_day_update_timer;
m_time_of_day_update_timer = 0;
if(m_time_of_day_set){
time_speed = 3600.0*24.0 * tod_diff_f / time_diff;
infostream<<"Client: Measured time_of_day speed (old format): "
<<time_speed<<" tod_diff_f="<<tod_diff_f
<<" time_diff="<<time_diff<<std::endl;
}
}
// Update environment
m_env.setTimeOfDay(time_of_day);
m_env.setTimeOfDaySpeed(time_speed);
m_time_of_day_set = true;
u32 dr = m_env.getDayNightRatio();
verbosestream<<"Client: time_of_day="<<time_of_day
<<" time_speed="<<time_speed
<<" dr="<<dr<<std::endl;
}
else if(command == TOCLIENT_CHAT_MESSAGE)
{
/*
u16 command
u16 length
wstring message
*/
u8 buf[6];
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
// Read stuff
is.read((char*)buf, 2);
u16 len = readU16(buf);
std::wstring message;
for(u16 i=0; i<len; i++)
{
is.read((char*)buf, 2);
message += (wchar_t)readU16(buf);
}
/*infostream<<"Client received chat message: "
<<wide_to_narrow(message)<<std::endl;*/
m_chat_queue.push_back(message);
}
else if(command == TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD)
{
//if(g_settings->getBool("enable_experimental"))
{
/*
u16 command
u16 count of removed objects
for all removed objects {
u16 id
}
u16 count of added objects
for all added objects {
u16 id
u8 type
u32 initialization data length
string initialization data
}
*/
char buf[6];
// Get all data except the command number
std::string datastring((char*)&data[2], datasize-2);
// Throw them in an istringstream
std::istringstream is(datastring, std::ios_base::binary);
// Read stuff
// Read removed objects
is.read(buf, 2);
u16 removed_count = readU16((u8*)buf);
for(u16 i=0; i<removed_count; i++)
{
is.read(buf, 2);
u16 id = readU16((u8*)buf);
// Remove it
{
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
m_env.removeActiveObject(id);
}
}
// Read added objects
is.read(buf, 2);
u16 added_count = readU16((u8*)buf);
for(u16 i=0; i<added_count; i++)
{
is.read(buf, 2);
u16 id = readU16((u8*)buf);
is.read(buf, 1);
u8 type = readU8((u8*)buf);
std::string data = deSerializeLongString(is);
// Add it
{
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
m_env.addActiveObject(id, type, data);
}
}
}
}
else if(command == TOCLIENT_ACTIVE_OBJECT_MESSAGES)
{
//if(g_settings->getBool("enable_experimental"))
{
/*
u16 command
for all objects
{
u16 id
u16 message length
string message
}
*/
char buf[6];
// Get all data except the command number
std::string datastring((char*)&data[2], datasize-2);
// Throw them in an istringstream
std::istringstream is(datastring, std::ios_base::binary);
while(is.eof() == false)
{
// Read stuff
is.read(buf, 2);
u16 id = readU16((u8*)buf);
if(is.eof())
break;
is.read(buf, 2);
u16 message_size = readU16((u8*)buf);
std::string message;
message.reserve(message_size);
for(u16 i=0; i<message_size; i++)
{
is.read(buf, 1);
message.append(buf, 1);
}
// Pass on to the environment
{
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
m_env.processActiveObjectMessage(id, message);
}
}
}
}
else if(command == TOCLIENT_HP)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
u8 oldhp = player->hp;
u8 hp = readU8(is);
player->hp = hp;
if(hp < oldhp)
{
// Add to ClientEvent queue
ClientEvent event;
event.type = CE_PLAYER_DAMAGE;
event.player_damage.amount = oldhp - hp;
m_client_event_queue.push_back(event);
}
}
else if(command == TOCLIENT_MOVE_PLAYER)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
v3f pos = readV3F1000(is);
f32 pitch = readF1000(is);
f32 yaw = readF1000(is);
player->setPosition(pos);
/*player->setPitch(pitch);
player->setYaw(yaw);*/
infostream<<"Client got TOCLIENT_MOVE_PLAYER"
<<" pos=("<<pos.X<<","<<pos.Y<<","<<pos.Z<<")"
<<" pitch="<<pitch
<<" yaw="<<yaw
<<std::endl;
/*
Add to ClientEvent queue.
This has to be sent to the main program because otherwise
it would just force the pitch and yaw values to whatever
the camera points to.
*/
ClientEvent event;
event.type = CE_PLAYER_FORCE_MOVE;
event.player_force_move.pitch = pitch;
event.player_force_move.yaw = yaw;
m_client_event_queue.push_back(event);
// Ignore damage for a few seconds, so that the player doesn't
// get damage from falling on ground
m_ignore_damage_timer = 3.0;
}
else if(command == TOCLIENT_PLAYERITEM)
{
infostream<<"Client: WARNING: Ignoring TOCLIENT_PLAYERITEM"<<std::endl;
}
else if(command == TOCLIENT_DEATHSCREEN)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
bool set_camera_point_target = readU8(is);
v3f camera_point_target = readV3F1000(is);
ClientEvent event;
event.type = CE_DEATHSCREEN;
event.deathscreen.set_camera_point_target = set_camera_point_target;
event.deathscreen.camera_point_target_x = camera_point_target.X;
event.deathscreen.camera_point_target_y = camera_point_target.Y;
event.deathscreen.camera_point_target_z = camera_point_target.Z;
m_client_event_queue.push_back(event);
}
else if(command == TOCLIENT_ANNOUNCE_MEDIA)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
// Mesh update thread must be stopped while
// updating content definitions
assert(!m_mesh_update_thread.IsRunning());
int num_files = readU16(is);
infostream<<"Client: Received media announcement: packet size: "
<<datasize<<std::endl;
core::list<MediaRequest> file_requests;
for(int i=0; i<num_files; i++)
{
//read file from cache
std::string name = deSerializeString(is);
std::string sha1_base64 = deSerializeString(is);
// if name contains illegal characters, ignore the file
if(!string_allowed(name, TEXTURENAME_ALLOWED_CHARS)){
errorstream<<"Client: ignoring illegal file name "
<<"sent by server: \""<<name<<"\""<<std::endl;
continue;
}
std::string sha1_raw = base64_decode(sha1_base64);
std::string sha1_hex = hex_encode(sha1_raw);
std::ostringstream tmp_os(std::ios_base::binary);
bool found_in_cache = m_media_cache.load_sha1(sha1_raw, tmp_os);
m_media_name_sha1_map.set(name, sha1_raw);
// If found in cache, try to load it from there
if(found_in_cache)
{
bool success = loadMedia(tmp_os.str(), name);
if(success){
verbosestream<<"Client: Loaded cached media: "
<<sha1_hex<<" \""<<name<<"\""<<std::endl;
continue;
} else{
infostream<<"Client: Failed to load cached media: "
<<sha1_hex<<" \""<<name<<"\""<<std::endl;
}
}
// Didn't load from cache; queue it to be requested
verbosestream<<"Client: Adding file to request list: \""
<<sha1_hex<<" \""<<name<<"\""<<std::endl;
file_requests.push_back(MediaRequest(name));
}
std::string remote_media = "";
try {
remote_media = deSerializeString(is);
}
catch(SerializationError) {
// not supported by server or turned off
}
m_media_count = file_requests.size();
m_media_receive_started = true;
if (remote_media == "" || !USE_CURL) {
request_media(file_requests);
} else {
#if USE_CURL
core::list<MediaFetchThread*>::Iterator cur = m_media_fetch_threads.begin();
for(core::list<MediaRequest>::Iterator i = file_requests.begin();
i != file_requests.end(); i++) {
(*cur)->m_file_requests.push_back(*i);
cur++;
if (cur == m_media_fetch_threads.end())
cur = m_media_fetch_threads.begin();
}
for (core::list<MediaFetchThread*>::Iterator i = m_media_fetch_threads.begin();
i != m_media_fetch_threads.end(); i++) {
(*i)->m_remote_url = remote_media;
(*i)->Start();
}
#endif
// notify server we received everything
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOSERVER_RECEIVED_MEDIA);
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
ClientEvent event;
event.type = CE_TEXTURES_UPDATED;
m_client_event_queue.push_back(event);
}
else if(command == TOCLIENT_MEDIA)
{
if (m_media_count == 0)
return;
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
// Mesh update thread must be stopped while
// updating content definitions
assert(!m_mesh_update_thread.IsRunning());
/*
u16 command
u16 total number of file bunches
u16 index of this bunch
u32 number of files in this bunch
for each file {
u16 length of name
string name
u32 length of data
data
}
*/
int num_bunches = readU16(is);
int bunch_i = readU16(is);
int num_files = readU32(is);
infostream<<"Client: Received files: bunch "<<bunch_i<<"/"
<<num_bunches<<" files="<<num_files
<<" size="<<datasize<<std::endl;
for(int i=0; i<num_files; i++){
m_media_received_count++;
std::string name = deSerializeString(is);
std::string data = deSerializeLongString(is);
// if name contains illegal characters, ignore the file
if(!string_allowed(name, TEXTURENAME_ALLOWED_CHARS)){
errorstream<<"Client: ignoring illegal file name "
<<"sent by server: \""<<name<<"\""<<std::endl;
continue;
}
bool success = loadMedia(data, name);
if(success){
verbosestream<<"Client: Loaded received media: "
<<"\""<<name<<"\". Caching."<<std::endl;
} else{
infostream<<"Client: Failed to load received media: "
<<"\""<<name<<"\". Not caching."<<std::endl;
continue;
}
bool did = fs::CreateAllDirs(getMediaCacheDir());
if(!did){
errorstream<<"Could not create media cache directory"
<<std::endl;
}
{
core::map<std::string, std::string>::Node *n;
n = m_media_name_sha1_map.find(name);
if(n == NULL)
errorstream<<"The server sent a file that has not "
<<"been announced."<<std::endl;
else
m_media_cache.update_sha1(data);
}
}
ClientEvent event;
event.type = CE_TEXTURES_UPDATED;
m_client_event_queue.push_back(event);
}
else if(command == TOCLIENT_TOOLDEF)
{
infostream<<"Client: WARNING: Ignoring TOCLIENT_TOOLDEF"<<std::endl;
}
else if(command == TOCLIENT_NODEDEF)
{
infostream<<"Client: Received node definitions: packet size: "
<<datasize<<std::endl;
// Mesh update thread must be stopped while
// updating content definitions
assert(!m_mesh_update_thread.IsRunning());
// Decompress node definitions
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
std::ostringstream tmp_os;
decompressZlib(tmp_is, tmp_os);
// Deserialize node definitions
std::istringstream tmp_is2(tmp_os.str());
m_nodedef->deSerialize(tmp_is2);
m_nodedef_received = true;
}
else if(command == TOCLIENT_CRAFTITEMDEF)
{
infostream<<"Client: WARNING: Ignoring TOCLIENT_CRAFTITEMDEF"<<std::endl;
}
else if(command == TOCLIENT_ITEMDEF)
{
infostream<<"Client: Received item definitions: packet size: "
<<datasize<<std::endl;
// Mesh update thread must be stopped while
// updating content definitions
assert(!m_mesh_update_thread.IsRunning());
// Decompress item definitions
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
std::ostringstream tmp_os;
decompressZlib(tmp_is, tmp_os);
// Deserialize node definitions
std::istringstream tmp_is2(tmp_os.str());
m_itemdef->deSerialize(tmp_is2);
m_itemdef_received = true;
}
else if(command == TOCLIENT_PLAY_SOUND)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
s32 server_id = readS32(is);
std::string name = deSerializeString(is);
float gain = readF1000(is);
int type = readU8(is); // 0=local, 1=positional, 2=object
v3f pos = readV3F1000(is);
u16 object_id = readU16(is);
bool loop = readU8(is);
// Start playing
int client_id = -1;
switch(type){
case 0: // local
client_id = m_sound->playSound(name, loop, gain);
break;
case 1: // positional
client_id = m_sound->playSoundAt(name, loop, gain, pos);
break;
case 2: { // object
ClientActiveObject *cao = m_env.getActiveObject(object_id);
if(cao)
pos = cao->getPosition();
client_id = m_sound->playSoundAt(name, loop, gain, pos);
// TODO: Set up sound to move with object
break; }
default:
break;
}
if(client_id != -1){
m_sounds_server_to_client[server_id] = client_id;
m_sounds_client_to_server[client_id] = server_id;
if(object_id != 0)
m_sounds_to_objects[client_id] = object_id;
}
}
else if(command == TOCLIENT_STOP_SOUND)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
s32 server_id = readS32(is);
std::map<s32, int>::iterator i =
m_sounds_server_to_client.find(server_id);
if(i != m_sounds_server_to_client.end()){
int client_id = i->second;
m_sound->stopSound(client_id);
}
}
else if(command == TOCLIENT_PRIVILEGES)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
m_privileges.clear();
infostream<<"Client: Privileges updated: ";
u16 num_privileges = readU16(is);
for(u16 i=0; i<num_privileges; i++){
std::string priv = deSerializeString(is);
m_privileges.insert(priv);
infostream<<priv<<" ";
}
infostream<<std::endl;
}
else if(command == TOCLIENT_INVENTORY_FORMSPEC)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
// Store formspec in LocalPlayer
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
player->inventory_formspec = deSerializeLongString(is);
}
else if(command == TOCLIENT_DETACHED_INVENTORY)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
std::string name = deSerializeString(is);
infostream<<"Client: Detached inventory update: \""<<name<<"\""<<std::endl;
Inventory *inv = NULL;
if(m_detached_inventories.count(name) > 0)
inv = m_detached_inventories[name];
else{
inv = new Inventory(m_itemdef);
m_detached_inventories[name] = inv;
}
inv->deSerialize(is);
}
else if(command == TOCLIENT_SHOW_FORMSPEC)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
std::string formspec = deSerializeLongString(is);
std::string formname = deSerializeString(is);
ClientEvent event;
event.type = CE_SHOW_FORMSPEC;
// pointer is required as event is a struct only!
// adding a std:string to a struct isn't possible
event.show_formspec.formspec = new std::string(formspec);
event.show_formspec.formname = new std::string(formname);
m_client_event_queue.push_back(event);
}
else
{
infostream<<"Client: Ignoring unknown command "
<<command<<std::endl;
}
}
void Client::Send(u16 channelnum, SharedBuffer<u8> data, bool reliable)
{
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
m_con.Send(PEER_ID_SERVER, channelnum, data, reliable);
}
void Client::interact(u8 action, const PointedThing& pointed)
{
if(connectedAndInitialized() == false){
infostream<<"Client::interact() "
"cancelled (not connected)"
<<std::endl;
return;
}
std::ostringstream os(std::ios_base::binary);
/*
[0] u16 command
[2] u8 action
[3] u16 item
[5] u32 length of the next item
[9] serialized PointedThing
actions:
0: start digging (from undersurface) or use
1: stop digging (all parameters ignored)
2: digging completed
3: place block or item (to abovesurface)
4: use item
*/
writeU16(os, TOSERVER_INTERACT);
writeU8(os, action);
writeU16(os, getPlayerItem());
std::ostringstream tmp_os(std::ios::binary);
pointed.serialize(tmp_os);
os<<serializeLongString(tmp_os.str());
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
const std::map<std::string, std::string> &fields)
{
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOSERVER_NODEMETA_FIELDS);
writeV3S16(os, p);
os<<serializeString(formname);
writeU16(os, fields.size());
for(std::map<std::string, std::string>::const_iterator
i = fields.begin(); i != fields.end(); i++){
const std::string &name = i->first;
const std::string &value = i->second;
os<<serializeString(name);
os<<serializeLongString(value);
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendInventoryFields(const std::string &formname,
const std::map<std::string, std::string> &fields)
{
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOSERVER_INVENTORY_FIELDS);
os<<serializeString(formname);
writeU16(os, fields.size());
for(std::map<std::string, std::string>::const_iterator
i = fields.begin(); i != fields.end(); i++){
const std::string &name = i->first;
const std::string &value = i->second;
os<<serializeString(name);
os<<serializeLongString(value);
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendInventoryAction(InventoryAction *a)
{
std::ostringstream os(std::ios_base::binary);
u8 buf[12];
// Write command
writeU16(buf, TOSERVER_INVENTORY_ACTION);
os.write((char*)buf, 2);
a->serialize(os);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendChatMessage(const std::wstring &message)
{
std::ostringstream os(std::ios_base::binary);
u8 buf[12];
// Write command
writeU16(buf, TOSERVER_CHAT_MESSAGE);
os.write((char*)buf, 2);
// Write length
writeU16(buf, message.size());
os.write((char*)buf, 2);
// Write string
for(u32 i=0; i<message.size(); i++)
{
u16 w = message[i];
writeU16(buf, w);
os.write((char*)buf, 2);
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendChangePassword(const std::wstring oldpassword,
const std::wstring newpassword)
{
Player *player = m_env.getLocalPlayer();
if(player == NULL)
return;
std::string playername = player->getName();
std::string oldpwd = translatePassword(playername, oldpassword);
std::string newpwd = translatePassword(playername, newpassword);
std::ostringstream os(std::ios_base::binary);
u8 buf[2+PASSWORD_SIZE*2];
/*
[0] u16 TOSERVER_PASSWORD
[2] u8[28] old password
[30] u8[28] new password
*/
writeU16(buf, TOSERVER_PASSWORD);
for(u32 i=0;i<PASSWORD_SIZE-1;i++)
{
buf[2+i] = i<oldpwd.length()?oldpwd[i]:0;
buf[30+i] = i<newpwd.length()?newpwd[i]:0;
}
buf[2+PASSWORD_SIZE-1] = 0;
buf[30+PASSWORD_SIZE-1] = 0;
os.write((char*)buf, 2+PASSWORD_SIZE*2);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendDamage(u8 damage)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOSERVER_DAMAGE);
writeU8(os, damage);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendRespawn()
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOSERVER_RESPAWN);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
Send(0, data, true);
}
void Client::sendPlayerPos()
{
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
LocalPlayer *myplayer = m_env.getLocalPlayer();
if(myplayer == NULL)
return;
// Save bandwidth by only updating position when something changed
if(myplayer->last_position == myplayer->getPosition() &&
myplayer->last_speed == myplayer->getSpeed() &&
myplayer->last_pitch == myplayer->getPitch() &&
myplayer->last_yaw == myplayer->getYaw() &&
myplayer->last_keyPressed == myplayer->keyPressed)
return;
myplayer->last_position = myplayer->getPosition();
myplayer->last_speed = myplayer->getSpeed();
myplayer->last_pitch = myplayer->getPitch();
myplayer->last_yaw = myplayer->getYaw();
myplayer->last_keyPressed = myplayer->keyPressed;
u16 our_peer_id;
{
//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
our_peer_id = m_con.GetPeerID();
}
// Set peer id if not set already
if(myplayer->peer_id == PEER_ID_INEXISTENT)
myplayer->peer_id = our_peer_id;
// Check that an existing peer_id is the same as the connection's
assert(myplayer->peer_id == our_peer_id);
v3f pf = myplayer->getPosition();
v3s32 position(pf.X*100, pf.Y*100, pf.Z*100);
v3f sf = myplayer->getSpeed();
v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
s32 pitch = myplayer->getPitch() * 100;
s32 yaw = myplayer->getYaw() * 100;
u32 keyPressed=myplayer->keyPressed;
/*
Format:
[0] u16 command
[2] v3s32 position*100
[2+12] v3s32 speed*100
[2+12+12] s32 pitch*100
[2+12+12+4] s32 yaw*100
[2+12+12+4+4] u32 keyPressed
*/
SharedBuffer<u8> data(2+12+12+4+4+4);
writeU16(&data[0], TOSERVER_PLAYERPOS);
writeV3S32(&data[2], position);
writeV3S32(&data[2+12], speed);
writeS32(&data[2+12+12], pitch);
writeS32(&data[2+12+12+4], yaw);
writeU32(&data[2+12+12+4+4], keyPressed);
// Send as unreliable
Send(0, data, false);
}
void Client::sendPlayerItem(u16 item)
{
Player *myplayer = m_env.getLocalPlayer();
if(myplayer == NULL)
return;
u16 our_peer_id = m_con.GetPeerID();
// Set peer id if not set already
if(myplayer->peer_id == PEER_ID_INEXISTENT)
myplayer->peer_id = our_peer_id;
// Check that an existing peer_id is the same as the connection's
assert(myplayer->peer_id == our_peer_id);
SharedBuffer<u8> data(2+2);
writeU16(&data[0], TOSERVER_PLAYERITEM);
writeU16(&data[2], item);
// Send as reliable
Send(0, data, true);
}
void Client::removeNode(v3s16 p)
{
core::map<v3s16, MapBlock*> modified_blocks;
try
{
//TimeTaker t("removeNodeAndUpdate", m_device);
m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
}
catch(InvalidPositionException &e)
{
}
// add urgent task to update the modified node
addUpdateMeshTaskForNode(p, false, true);
for(core::map<v3s16, MapBlock * >::Iterator
i = modified_blocks.getIterator();
i.atEnd() == false; i++)
{
v3s16 p = i.getNode()->getKey();
addUpdateMeshTaskWithEdge(p);
}
}
void Client::addNode(v3s16 p, MapNode n)
{
TimeTaker timer1("Client::addNode()");
core::map<v3s16, MapBlock*> modified_blocks;
try
{
//TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
m_env.getMap().addNodeAndUpdate(p, n, modified_blocks);
}
catch(InvalidPositionException &e)
{}
for(core::map<v3s16, MapBlock * >::Iterator
i = modified_blocks.getIterator();
i.atEnd() == false; i++)
{
v3s16 p = i.getNode()->getKey();
addUpdateMeshTaskWithEdge(p);
}
}
void Client::setPlayerControl(PlayerControl &control)
{
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
LocalPlayer *player = m_env.getLocalPlayer();
assert(player != NULL);
player->control = control;
}
void Client::selectPlayerItem(u16 item)
{
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
m_playeritem = item;
m_inventory_updated = true;
sendPlayerItem(item);
}
// Returns true if the inventory of the local player has been
// updated from the server. If it is true, it is set to false.
bool Client::getLocalInventoryUpdated()
{
// m_inventory_updated is behind envlock
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
bool updated = m_inventory_updated;
m_inventory_updated = false;
return updated;
}
// Copies the inventory of the local player to parameter
void Client::getLocalInventory(Inventory &dst)
{
//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
dst = player->inventory;
}
Inventory* Client::getInventory(const InventoryLocation &loc)
{
switch(loc.type){
case InventoryLocation::UNDEFINED:
{}
break;
case InventoryLocation::CURRENT_PLAYER:
{
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
return &player->inventory;
}
break;
case InventoryLocation::PLAYER:
{
Player *player = m_env.getPlayer(loc.name.c_str());
if(!player)
return NULL;
return &player->inventory;
}
break;
case InventoryLocation::NODEMETA:
{
NodeMetadata *meta = m_env.getMap().getNodeMetadata(loc.p);
if(!meta)
return NULL;
return meta->getInventory();
}
break;
case InventoryLocation::DETACHED:
{
if(m_detached_inventories.count(loc.name) == 0)
return NULL;
return m_detached_inventories[loc.name];
}
break;
default:
assert(0);
}
return NULL;
}
void Client::inventoryAction(InventoryAction *a)
{
/*
Send it to the server
*/
sendInventoryAction(a);
/*
Predict some local inventory changes
*/
a->clientApply(this, this);
}
ClientActiveObject * Client::getSelectedActiveObject(
f32 max_d,
v3f from_pos_f_on_map,
core::line3d<f32> shootline_on_map
)
{
core::array<DistanceSortedActiveObject> objects;
m_env.getActiveObjects(from_pos_f_on_map, max_d, objects);
//infostream<<"Collected "<<objects.size()<<" nearby objects"<<std::endl;
// Sort them.
// After this, the closest object is the first in the array.
objects.sort();
for(u32 i=0; i<objects.size(); i++)
{
ClientActiveObject *obj = objects[i].obj;
core::aabbox3d<f32> *selection_box = obj->getSelectionBox();
if(selection_box == NULL)
continue;
v3f pos = obj->getPosition();
core::aabbox3d<f32> offsetted_box(
selection_box->MinEdge + pos,
selection_box->MaxEdge + pos
);
if(offsetted_box.intersectsWithLine(shootline_on_map))
{
//infostream<<"Returning selected object"<<std::endl;
return obj;
}
}
//infostream<<"No object selected; returning NULL."<<std::endl;
return NULL;
}
void Client::printDebugInfo(std::ostream &os)
{
//JMutexAutoLock lock1(m_fetchblock_mutex);
/*JMutexAutoLock lock2(m_incoming_queue_mutex);
os<<"m_incoming_queue.getSize()="<<m_incoming_queue.getSize()
//<<", m_fetchblock_history.size()="<<m_fetchblock_history.size()
//<<", m_opt_not_found_history.size()="<<m_opt_not_found_history.size()
<<std::endl;*/
}
core::list<std::wstring> Client::getConnectedPlayerNames()
{
core::list<Player*> players = m_env.getPlayers(true);
core::list<std::wstring> playerNames;
for(core::list<Player*>::Iterator
i = players.begin();
i != players.end(); i++)
{
Player *player = *i;
playerNames.push_back(narrow_to_wide(player->getName()));
}
return playerNames;
}
float Client::getAnimationTime()
{
return m_animation_time;
}
int Client::getCrackLevel()
{
return m_crack_level;
}
void Client::setCrack(int level, v3s16 pos)
{
int old_crack_level = m_crack_level;
v3s16 old_crack_pos = m_crack_pos;
m_crack_level = level;
m_crack_pos = pos;
if(old_crack_level >= 0 && (level < 0 || pos != old_crack_pos))
{
// remove old crack
addUpdateMeshTaskForNode(old_crack_pos, false, true);
}
if(level >= 0 && (old_crack_level < 0 || pos != old_crack_pos))
{
// add new crack
addUpdateMeshTaskForNode(pos, false, true);
}
}
u16 Client::getHP()
{
Player *player = m_env.getLocalPlayer();
assert(player != NULL);
return player->hp;
}
bool Client::getChatMessage(std::wstring &message)
{
if(m_chat_queue.size() == 0)
return false;
message = m_chat_queue.pop_front();
return true;
}
void Client::typeChatMessage(const std::wstring &message)
{
// Discard empty line
if(message == L"")
return;
// Send to others
sendChatMessage(message);
// Show locally
if (message[0] == L'/')
{
m_chat_queue.push_back(
(std::wstring)L"issued command: "+message);
}
else
{
LocalPlayer *player = m_env.getLocalPlayer();
assert(player != NULL);
std::wstring name = narrow_to_wide(player->getName());
m_chat_queue.push_back(
(std::wstring)L"<"+name+L"> "+message);
}
}
void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
{
/*infostream<<"Client::addUpdateMeshTask(): "
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
<<" ack_to_server="<<ack_to_server
<<" urgent="<<urgent
<<std::endl;*/
MapBlock *b = m_env.getMap().getBlockNoCreateNoEx(p);
if(b == NULL)
return;
/*
Create a task to update the mesh of the block
*/
MeshMakeData *data = new MeshMakeData(this);
{
//TimeTaker timer("data fill");
// Release: ~0ms
// Debug: 1-6ms, avg=2ms
data->fill(b);
data->setCrack(m_crack_level, m_crack_pos);
data->setSmoothLighting(g_settings->getBool("smooth_lighting"));
}
// Debug wait
//while(m_mesh_update_thread.m_queue_in.size() > 0) sleep_ms(10);
// Add task to queue
m_mesh_update_thread.m_queue_in.addBlock(p, data, ack_to_server, urgent);
/*infostream<<"Mesh update input queue size is "
<<m_mesh_update_thread.m_queue_in.size()
<<std::endl;*/
}
void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
{
/*{
v3s16 p = blockpos;
infostream<<"Client::addUpdateMeshTaskWithEdge(): "
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
<<std::endl;
}*/
try{
v3s16 p = blockpos + v3s16(0,0,0);
//MapBlock *b = m_env.getMap().getBlockNoCreate(p);
addUpdateMeshTask(p, ack_to_server, urgent);
}
catch(InvalidPositionException &e){}
// Leading edge
try{
v3s16 p = blockpos + v3s16(-1,0,0);
addUpdateMeshTask(p, false, urgent);
}
catch(InvalidPositionException &e){}
try{
v3s16 p = blockpos + v3s16(0,-1,0);
addUpdateMeshTask(p, false, urgent);
}
catch(InvalidPositionException &e){}
try{
v3s16 p = blockpos + v3s16(0,0,-1);
addUpdateMeshTask(p, false, urgent);
}
catch(InvalidPositionException &e){}
}
void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
{
{
v3s16 p = nodepos;
infostream<<"Client::addUpdateMeshTaskForNode(): "
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
<<std::endl;
}
v3s16 blockpos = getNodeBlockPos(nodepos);
v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
try{
v3s16 p = blockpos + v3s16(0,0,0);
addUpdateMeshTask(p, ack_to_server, urgent);
}
catch(InvalidPositionException &e){}
// Leading edge
if(nodepos.X == blockpos_relative.X){
try{
v3s16 p = blockpos + v3s16(-1,0,0);
addUpdateMeshTask(p, false, urgent);
}
catch(InvalidPositionException &e){}
}
if(nodepos.Y == blockpos_relative.Y){
try{
v3s16 p = blockpos + v3s16(0,-1,0);
addUpdateMeshTask(p, false, urgent);
}
catch(InvalidPositionException &e){}
}
if(nodepos.Z == blockpos_relative.Z){
try{
v3s16 p = blockpos + v3s16(0,0,-1);
addUpdateMeshTask(p, false, urgent);
}
catch(InvalidPositionException &e){}
}
}
ClientEvent Client::getClientEvent()
{
if(m_client_event_queue.size() == 0)
{
ClientEvent event;
event.type = CE_NONE;
return event;
}
return m_client_event_queue.pop_front();
}
void Client::afterContentReceived()
{
infostream<<"Client::afterContentReceived() started"<<std::endl;
assert(m_itemdef_received);
assert(m_nodedef_received);
assert(texturesReceived());
// remove the information about which checksum each texture
// ought to have
m_media_name_sha1_map.clear();
// Rebuild inherited images and recreate textures
infostream<<"- Rebuilding images and textures"<<std::endl;
m_tsrc->rebuildImagesAndTextures();
// Update texture atlas
infostream<<"- Updating texture atlas"<<std::endl;
if(g_settings->getBool("enable_texture_atlas"))
m_tsrc->buildMainAtlas(this);
// Rebuild shaders
m_shsrc->rebuildShaders();
// Update node aliases
infostream<<"- Updating node aliases"<<std::endl;
m_nodedef->updateAliases(m_itemdef);
// Update node textures
infostream<<"- Updating node textures"<<std::endl;
m_nodedef->updateTextures(m_tsrc);
// Preload item textures and meshes if configured to
if(g_settings->getBool("preload_item_visuals"))
{
verbosestream<<"Updating item textures and meshes"<<std::endl;
std::set<std::string> names = m_itemdef->getAll();
for(std::set<std::string>::const_iterator
i = names.begin(); i != names.end(); ++i){
// Asking for these caches the result
m_itemdef->getInventoryTexture(*i, this);
m_itemdef->getWieldMesh(*i, this);
}
}
// Start mesh update thread after setting up content definitions
infostream<<"- Starting mesh update thread"<<std::endl;
m_mesh_update_thread.Start();
infostream<<"Client::afterContentReceived() done"<<std::endl;
}
float Client::getRTT(void)
{
try{
return m_con.GetPeerAvgRTT(PEER_ID_SERVER);
} catch(con::PeerNotFoundException &e){
return 1337;
}
}
// IGameDef interface
// Under envlock
IItemDefManager* Client::getItemDefManager()
{
return m_itemdef;
}
INodeDefManager* Client::getNodeDefManager()
{
return m_nodedef;
}
ICraftDefManager* Client::getCraftDefManager()
{
return NULL;
//return m_craftdef;
}
ITextureSource* Client::getTextureSource()
{
return m_tsrc;
}
IShaderSource* Client::getShaderSource()
{
return m_shsrc;
}
u16 Client::allocateUnknownNodeId(const std::string &name)
{
errorstream<<"Client::allocateUnknownNodeId(): "
<<"Client cannot allocate node IDs"<<std::endl;
assert(0);
return CONTENT_IGNORE;
}
ISoundManager* Client::getSoundManager()
{
return m_sound;
}
MtEventManager* Client::getEventManager()
{
return m_event;
}
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