minetest/src/server.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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU 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.
*/
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/*
(c) 2010 Perttu Ahola <celeron55@gmail.com>
*/
#include "server.h"
#include "utility.h"
#include <iostream>
#include "clientserver.h"
#include "map.h"
#include "jmutexautolock.h"
#include "main.h"
#include "constants.h"
#include "voxel.h"
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#include "materials.h"
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#define BLOCK_EMERGE_FLAG_FROMDISK (1<<0)
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void * ServerThread::Thread()
{
ThreadStarted();
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
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while(getRun())
{
try{
m_server->AsyncRunStep();
//dout_server<<"Running m_server->Receive()"<<std::endl;
m_server->Receive();
}
catch(con::NoIncomingDataException &e)
{
}
}
END_DEBUG_EXCEPTION_HANDLER
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return NULL;
}
void * EmergeThread::Thread()
{
ThreadStarted();
DSTACK(__FUNCTION_NAME);
bool debug=false;
BEGIN_DEBUG_EXCEPTION_HANDLER
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/*
Get block info from queue, emerge them and send them
to clients.
After queue is empty, exit.
*/
while(getRun())
{
QueuedBlockEmerge *qptr = m_server->m_emerge_queue.pop();
if(qptr == NULL)
break;
SharedPtr<QueuedBlockEmerge> q(qptr);
v3s16 &p = q->pos;
//derr_server<<"EmergeThread::Thread(): running"<<std::endl;
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//TimeTaker timer("block emerge", g_device);
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/*
Try to emerge it from somewhere.
If it is only wanted as optional, only loading from disk
will be allowed.
*/
/*
Check if any peer wants it as non-optional. In that case it
will be generated.
Also decrement the emerge queue count in clients.
*/
bool optional = true;
{
core::map<u16, u8>::Iterator i;
for(i=q->peer_ids.getIterator(); i.atEnd()==false; i++)
{
//u16 peer_id = i.getNode()->getKey();
// Check flags
u8 flags = i.getNode()->getValue();
if((flags & BLOCK_EMERGE_FLAG_FROMDISK) == false)
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optional = false;
}
}
/*dstream<<"EmergeThread: p="
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<") "
<<"optional="<<optional<<std::endl;*/
ServerMap &map = ((ServerMap&)m_server->m_env.getMap());
core::map<v3s16, MapBlock*> changed_blocks;
core::map<v3s16, MapBlock*> lighting_invalidated_blocks;
MapBlock *block = NULL;
bool got_block = true;
core::map<v3s16, MapBlock*> modified_blocks;
{//envlock
JMutexAutoLock envlock(m_server->m_env_mutex);
//TimeTaker timer("block emerge envlock", g_device);
try{
bool only_from_disk = false;
if(optional)
only_from_disk = true;
block = map.emergeBlock(
p,
only_from_disk,
changed_blocks,
lighting_invalidated_blocks);
// If it is a dummy, block was not found on disk
if(block->isDummy())
{
//dstream<<"EmergeThread: Got a dummy block"<<std::endl;
got_block = false;
}
}
catch(InvalidPositionException &e)
{
// Block not found.
// This happens when position is over limit.
got_block = false;
}
if(got_block)
{
if(debug && changed_blocks.size() > 0)
{
dout_server<<DTIME<<"Got changed_blocks: ";
for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
i.atEnd() == false; i++)
{
MapBlock *block = i.getNode()->getValue();
v3s16 p = block->getPos();
dout_server<<"("<<p.X<<","<<p.Y<<","<<p.Z<<") ";
}
dout_server<<std::endl;
}
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/*
Update water pressure
*/
m_server->UpdateBlockWaterPressure(block, modified_blocks);
for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
i.atEnd() == false; i++)
{
MapBlock *block = i.getNode()->getValue();
m_server->UpdateBlockWaterPressure(block, modified_blocks);
//v3s16 p = i.getNode()->getKey();
//m_server->UpdateBlockWaterPressure(p, modified_blocks);
}
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/*
Collect a list of blocks that have been modified in
addition to the fetched one.
*/
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// Add all the "changed blocks" to modified_blocks
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for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
i.atEnd() == false; i++)
{
MapBlock *block = i.getNode()->getValue();
modified_blocks.insert(block->getPos(), block);
}
/*dstream<<"lighting "<<lighting_invalidated_blocks.size()
<<" blocks"<<std::endl;
TimeTaker timer("** updateLighting", g_device);*/
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// Update lighting without locking the environment mutex,
// add modified blocks to changed blocks
map.updateLighting(lighting_invalidated_blocks, modified_blocks);
}
// If we got no block, there should be no invalidated blocks
else
{
assert(lighting_invalidated_blocks.size() == 0);
}
}//envlock
/*
Set sent status of modified blocks on clients
*/
// NOTE: Server's clients are also behind the connection mutex
JMutexAutoLock lock(m_server->m_con_mutex);
/*
Add the originally fetched block to the modified list
*/
if(got_block)
{
modified_blocks.insert(p, block);
}
/*
Set the modified blocks unsent for all the clients
*/
for(core::map<u16, RemoteClient*>::Iterator
i = m_server->m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
if(modified_blocks.size() > 0)
{
// Remove block from sent history
client->SetBlocksNotSent(modified_blocks);
}
}
}
END_DEBUG_EXCEPTION_HANDLER
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return NULL;
}
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void RemoteClient::GetNextBlocks(Server *server, float dtime,
core::array<PrioritySortedBlockTransfer> &dest)
{
DSTACK(__FUNCTION_NAME);
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// Increment timers
{
JMutexAutoLock lock(m_blocks_sent_mutex);
m_nearest_unsent_reset_timer += dtime;
}
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// Won't send anything if already sending
{
JMutexAutoLock lock(m_blocks_sending_mutex);
if(m_blocks_sending.size() >= g_settings.getU16
("max_simultaneous_block_sends_per_client"))
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{
//dstream<<"Not sending any blocks, Queue full."<<std::endl;
return;
}
}
Player *player = server->m_env.getPlayer(peer_id);
v3f playerpos = player->getPosition();
v3f playerspeed = player->getSpeed();
v3s16 center_nodepos = floatToInt(playerpos);
v3s16 center = getNodeBlockPos(center_nodepos);
/*
Get the starting value of the block finder radius.
*/
s16 last_nearest_unsent_d;
s16 d_start;
{
JMutexAutoLock lock(m_blocks_sent_mutex);
if(m_last_center != center)
{
m_nearest_unsent_d = 0;
m_last_center = center;
}
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/*dstream<<"m_nearest_unsent_reset_timer="
<<m_nearest_unsent_reset_timer<<std::endl;*/
if(m_nearest_unsent_reset_timer > 5.0)
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{
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m_nearest_unsent_reset_timer = 0;
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m_nearest_unsent_d = 0;
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//dstream<<"Resetting m_nearest_unsent_d"<<std::endl;
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}
last_nearest_unsent_d = m_nearest_unsent_d;
d_start = m_nearest_unsent_d;
}
u16 maximum_simultaneous_block_sends_setting = g_settings.getU16
("max_simultaneous_block_sends_per_client");
u16 maximum_simultaneous_block_sends =
maximum_simultaneous_block_sends_setting;
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/*
Check the time from last addNode/removeNode.
Decrease send rate if player is building stuff.
*/
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{
SharedPtr<JMutexAutoLock> lock(m_time_from_building.getLock());
m_time_from_building.m_value += dtime;
/*if(m_time_from_building.m_value
< FULL_BLOCK_SEND_ENABLE_MIN_TIME_FROM_BUILDING)*/
if(m_time_from_building.m_value < g_settings.getFloat(
"full_block_send_enable_min_time_from_building"))
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{
maximum_simultaneous_block_sends
= LIMITED_MAX_SIMULTANEOUS_BLOCK_SENDS;
}
}
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u32 num_blocks_selected;
{
JMutexAutoLock lock(m_blocks_sending_mutex);
num_blocks_selected = m_blocks_sending.size();
}
/*
next time d will be continued from the d from which the nearest
unsent block was found this time.
This is because not necessarily any of the blocks found this
time are actually sent.
*/
s32 new_nearest_unsent_d = -1;
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// Serialization version used
//u8 ser_version = serialization_version;
//bool has_incomplete_blocks = false;
s16 d_max = g_settings.getS16("max_block_send_distance");
s16 d_max_gen = g_settings.getS16("max_block_generate_distance");
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//dstream<<"Starting from "<<d_start<<std::endl;
for(s16 d = d_start; d <= d_max; d++)
{
//dstream<<"RemoteClient::SendBlocks(): d="<<d<<std::endl;
//if(has_incomplete_blocks == false)
{
JMutexAutoLock lock(m_blocks_sent_mutex);
/*
If m_nearest_unsent_d was changed by the EmergeThread
(it can change it to 0 through SetBlockNotSent),
update our d to it.
Else update m_nearest_unsent_d
*/
if(m_nearest_unsent_d != last_nearest_unsent_d)
{
d = m_nearest_unsent_d;
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last_nearest_unsent_d = m_nearest_unsent_d;
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}
}
/*
Get the border/face dot coordinates of a "d-radiused"
box
*/
core::list<v3s16> list;
getFacePositions(list, d);
core::list<v3s16>::Iterator li;
for(li=list.begin(); li!=list.end(); li++)
{
v3s16 p = *li + center;
/*
Send throttling
- Don't allow too many simultaneous transfers
- EXCEPT when the blocks are very close
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Also, don't send blocks that are already flying.
*/
u16 maximum_simultaneous_block_sends_now =
maximum_simultaneous_block_sends;
if(d <= BLOCK_SEND_DISABLE_LIMITS_MAX_D)
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{
maximum_simultaneous_block_sends_now =
maximum_simultaneous_block_sends_setting;
}
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{
JMutexAutoLock lock(m_blocks_sending_mutex);
// Limit is dynamically lowered when building
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if(num_blocks_selected
>= maximum_simultaneous_block_sends_now)
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{
/*dstream<<"Not sending more blocks. Queue full. "
<<m_blocks_sending.size()
<<std::endl;*/
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goto queue_full;
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}
if(m_blocks_sending.find(p) != NULL)
continue;
}
/*
Do not go over-limit
*/
if(p.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Z < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Z > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
continue;
bool generate = d <= d_max_gen;
// Limit the generating area vertically to half
if(abs(p.Y - center.Y) > d_max_gen / 2)
generate = false;
/*
Don't send already sent blocks
*/
{
JMutexAutoLock lock(m_blocks_sent_mutex);
if(m_blocks_sent.find(p) != NULL)
continue;
}
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/*
Check if map has this block
*/
MapBlock *block = NULL;
try
{
block = server->m_env.getMap().getBlockNoCreate(p);
}
catch(InvalidPositionException &e)
{
}
bool surely_not_found_on_disk = false;
if(block != NULL)
{
/*if(block->isIncomplete())
{
has_incomplete_blocks = true;
continue;
}*/
if(block->isDummy())
{
surely_not_found_on_disk = true;
}
}
/*
If block has been marked to not exist on disk (dummy)
and generating new ones is not wanted, skip block.
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*/
if(generate == false && surely_not_found_on_disk == true)
{
// get next one.
continue;
}
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/*
Record the lowest d from which a a block has been
found being not sent and possibly to exist
*/
if(new_nearest_unsent_d == -1 || d < new_nearest_unsent_d)
{
new_nearest_unsent_d = d;
}
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/*
Add inexistent block to emerge queue.
*/
if(block == NULL || surely_not_found_on_disk)
{
/*SharedPtr<JMutexAutoLock> lock
(m_num_blocks_in_emerge_queue.getLock());*/
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//TODO: Get value from somewhere
// Allow only one block in emerge queue
if(server->m_emerge_queue.peerItemCount(peer_id) < 1)
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{
// Add it to the emerge queue and trigger the thread
u8 flags = 0;
if(generate == false)
flags |= BLOCK_EMERGE_FLAG_FROMDISK;
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server->m_emerge_queue.addBlock(peer_id, p, flags);
server->m_emergethread.trigger();
}
// get next one.
continue;
}
/*
Add block to queue
*/
PrioritySortedBlockTransfer q((float)d, p, peer_id);
dest.push_back(q);
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num_blocks_selected += 1;
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}
}
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queue_full:
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if(new_nearest_unsent_d != -1)
{
JMutexAutoLock lock(m_blocks_sent_mutex);
m_nearest_unsent_d = new_nearest_unsent_d;
}
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}
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void RemoteClient::SendObjectData(
Server *server,
float dtime,
core::map<v3s16, bool> &stepped_blocks
)
{
DSTACK(__FUNCTION_NAME);
// Can't send anything without knowing version
if(serialization_version == SER_FMT_VER_INVALID)
{
dstream<<"RemoteClient::SendObjectData(): Not sending, no version."
<<std::endl;
return;
}
/*
Send a TOCLIENT_OBJECTDATA packet.
Sent as unreliable.
u16 command
u16 number of player positions
for each player:
v3s32 position*100
v3s32 speed*100
s32 pitch*100
s32 yaw*100
u16 count of blocks
for each block:
block objects
*/
std::ostringstream os(std::ios_base::binary);
u8 buf[12];
// Write command
writeU16(buf, TOCLIENT_OBJECTDATA);
os.write((char*)buf, 2);
/*
Get and write player data
*/
core::list<Player*> players = server->m_env.getPlayers();
// Write player count
u16 playercount = players.size();
writeU16(buf, playercount);
os.write((char*)buf, 2);
core::list<Player*>::Iterator i;
for(i = players.begin();
i != players.end(); i++)
{
Player *player = *i;
v3f pf = player->getPosition();
v3f sf = player->getSpeed();
v3s32 position_i(pf.X*100, pf.Y*100, pf.Z*100);
v3s32 speed_i (sf.X*100, sf.Y*100, sf.Z*100);
s32 pitch_i (player->getPitch() * 100);
s32 yaw_i (player->getYaw() * 100);
writeU16(buf, player->peer_id);
os.write((char*)buf, 2);
writeV3S32(buf, position_i);
os.write((char*)buf, 12);
writeV3S32(buf, speed_i);
os.write((char*)buf, 12);
writeS32(buf, pitch_i);
os.write((char*)buf, 4);
writeS32(buf, yaw_i);
os.write((char*)buf, 4);
}
/*
Get and write object data
*/
/*
Get nearby blocks.
For making players to be able to build to their nearby
environment (building is not possible on blocks that are not
in memory):
- Set blocks changed
- Add blocks to emerge queue if they are not found
SUGGESTION: These could be ignored from the backside of the player
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*/
Player *player = server->m_env.getPlayer(peer_id);
v3f playerpos = player->getPosition();
v3f playerspeed = player->getSpeed();
v3s16 center_nodepos = floatToInt(playerpos);
v3s16 center = getNodeBlockPos(center_nodepos);
s16 d_max = g_settings.getS16("active_object_range");
// Number of blocks whose objects were written to bos
u16 blockcount = 0;
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std::ostringstream bos(std::ios_base::binary);
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for(s16 d = 0; d <= d_max; d++)
{
core::list<v3s16> list;
getFacePositions(list, d);
core::list<v3s16>::Iterator li;
for(li=list.begin(); li!=list.end(); li++)
{
v3s16 p = *li + center;
/*
Ignore blocks that haven't been sent to the client
*/
{
JMutexAutoLock sentlock(m_blocks_sent_mutex);
if(m_blocks_sent.find(p) == NULL)
continue;
}
// Try stepping block and add it to a send queue
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try
{
// Get block
MapBlock *block = server->m_env.getMap().getBlockNoCreate(p);
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/*
Step block if not in stepped_blocks and add to stepped_blocks.
*/
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if(stepped_blocks.find(p) == NULL)
{
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block->stepObjects(dtime, true, server->getDayNightRatio());
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stepped_blocks.insert(p, true);
block->setChangedFlag();
}
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// Skip block if there are no objects
if(block->getObjectCount() == 0)
continue;
/*
Write objects
*/
// Write blockpos
writeV3S16(buf, p);
bos.write((char*)buf, 6);
// Write objects
block->serializeObjects(bos, serialization_version);
blockcount++;
/*
Stop collecting objects if data is already too big
*/
// Sum of player and object data sizes
s32 sum = (s32)os.tellp() + 2 + (s32)bos.tellp();
// break out if data too big
if(sum > MAX_OBJECTDATA_SIZE)
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{
goto skip_subsequent;
}
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} //try
catch(InvalidPositionException &e)
{
// Not in memory
// Add it to the emerge queue and trigger the thread.
// Fetch the block only if it is on disk.
// Grab and increment counter
/*SharedPtr<JMutexAutoLock> lock
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(m_num_blocks_in_emerge_queue.getLock());
m_num_blocks_in_emerge_queue.m_value++;*/
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// Add to queue as an anonymous fetch from disk
u8 flags = BLOCK_EMERGE_FLAG_FROMDISK;
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server->m_emerge_queue.addBlock(0, p, flags);
server->m_emergethread.trigger();
}
}
}
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skip_subsequent:
// Write block count
writeU16(buf, blockcount);
os.write((char*)buf, 2);
// Write block objects
os<<bos.str();
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/*
Send data
*/
//dstream<<"Server: Sending object data to "<<peer_id<<std::endl;
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// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as unreliable
server->m_con.Send(peer_id, 0, data, false);
}
void RemoteClient::GotBlock(v3s16 p)
{
JMutexAutoLock lock(m_blocks_sending_mutex);
JMutexAutoLock lock2(m_blocks_sent_mutex);
if(m_blocks_sending.find(p) != NULL)
m_blocks_sending.remove(p);
else
dstream<<"RemoteClient::GotBlock(): Didn't find in"
" m_blocks_sending"<<std::endl;
m_blocks_sent.insert(p, true);
}
void RemoteClient::SentBlock(v3s16 p)
{
JMutexAutoLock lock(m_blocks_sending_mutex);
if(m_blocks_sending.size() > 15)
{
dstream<<"RemoteClient::SentBlock(): "
<<"m_blocks_sending.size()="
<<m_blocks_sending.size()<<std::endl;
}
if(m_blocks_sending.find(p) == NULL)
m_blocks_sending.insert(p, 0.0);
else
dstream<<"RemoteClient::SentBlock(): Sent block"
" already in m_blocks_sending"<<std::endl;
}
void RemoteClient::SetBlockNotSent(v3s16 p)
{
JMutexAutoLock sendinglock(m_blocks_sending_mutex);
JMutexAutoLock sentlock(m_blocks_sent_mutex);
m_nearest_unsent_d = 0;
if(m_blocks_sending.find(p) != NULL)
m_blocks_sending.remove(p);
if(m_blocks_sent.find(p) != NULL)
m_blocks_sent.remove(p);
}
void RemoteClient::SetBlocksNotSent(core::map<v3s16, MapBlock*> &blocks)
{
JMutexAutoLock sendinglock(m_blocks_sending_mutex);
JMutexAutoLock sentlock(m_blocks_sent_mutex);
m_nearest_unsent_d = 0;
for(core::map<v3s16, MapBlock*>::Iterator
i = blocks.getIterator();
i.atEnd()==false; i++)
{
v3s16 p = i.getNode()->getKey();
if(m_blocks_sending.find(p) != NULL)
m_blocks_sending.remove(p);
if(m_blocks_sent.find(p) != NULL)
m_blocks_sent.remove(p);
}
}
/*
PlayerInfo
*/
PlayerInfo::PlayerInfo()
{
name[0] = 0;
}
void PlayerInfo::PrintLine(std::ostream *s)
{
(*s)<<id<<": \""<<name<<"\" ("
<<position.X<<","<<position.Y
<<","<<position.Z<<") ";
address.print(s);
(*s)<<" avg_rtt="<<avg_rtt;
(*s)<<std::endl;
}
u32 PIChecksum(core::list<PlayerInfo> &l)
{
core::list<PlayerInfo>::Iterator i;
u32 checksum = 1;
u32 a = 10;
for(i=l.begin(); i!=l.end(); i++)
{
checksum += a * (i->id+1);
checksum ^= 0x435aafcd;
a *= 10;
}
return checksum;
}
/*
Server
*/
Server::Server(
std::string mapsavedir,
HMParams hm_params,
MapParams map_params
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):
m_env(new ServerMap(mapsavedir, hm_params, map_params), dout_server),
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m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
m_thread(this),
m_emergethread(this),
m_time_of_day(9000),
m_time_counter(0),
m_time_of_day_send_timer(0),
m_uptime(0)
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{
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m_flowwater_timer = 0.0;
m_print_info_timer = 0.0;
m_objectdata_timer = 0.0;
m_emergethread_trigger_timer = 0.0;
m_savemap_timer = 0.0;
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m_env_mutex.Init();
m_con_mutex.Init();
m_step_dtime_mutex.Init();
m_step_dtime = 0.0;
}
Server::~Server()
{
// Stop threads
stop();
JMutexAutoLock clientslock(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
u16 peer_id = i.getNode()->getKey();
// Delete player
{
JMutexAutoLock envlock(m_env_mutex);
m_env.removePlayer(peer_id);
}
// Delete client
delete i.getNode()->getValue();
}
}
void Server::start(unsigned short port)
{
DSTACK(__FUNCTION_NAME);
// Stop thread if already running
m_thread.stop();
// Initialize connection
m_con.setTimeoutMs(30);
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m_con.Serve(port);
// Start thread
m_thread.setRun(true);
m_thread.Start();
dout_server<<"Server started on port "<<port<<std::endl;
}
void Server::stop()
{
DSTACK(__FUNCTION_NAME);
// Stop threads (set run=false first so both start stopping)
m_thread.setRun(false);
m_emergethread.setRun(false);
m_thread.stop();
m_emergethread.stop();
dout_server<<"Server threads stopped"<<std::endl;
}
void Server::step(float dtime)
{
DSTACK(__FUNCTION_NAME);
// Limit a bit
if(dtime > 2.0)
dtime = 2.0;
{
JMutexAutoLock lock(m_step_dtime_mutex);
m_step_dtime += dtime;
}
}
void Server::AsyncRunStep()
{
DSTACK(__FUNCTION_NAME);
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float dtime;
{
JMutexAutoLock lock1(m_step_dtime_mutex);
dtime = m_step_dtime;
}
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// Send blocks to clients
SendBlocks(dtime);
if(dtime < 0.001)
return;
//dstream<<"Server steps "<<dtime<<std::endl;
//dstream<<"Server::AsyncRunStep(): dtime="<<dtime<<std::endl;
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{
JMutexAutoLock lock1(m_step_dtime_mutex);
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m_step_dtime -= dtime;
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}
/*
Update uptime
*/
{
m_uptime.set(m_uptime.get() + dtime);
}
/*
Update m_time_of_day
*/
{
m_time_counter += dtime;
f32 speed = g_settings.getFloat("time_speed") * 24000./(24.*3600);
u32 units = (u32)(m_time_counter*speed);
m_time_counter -= (f32)units / speed;
m_time_of_day.set((m_time_of_day.get() + units) % 24000);
//dstream<<"Server: m_time_of_day = "<<m_time_of_day.get()<<std::endl;
/*
Send to clients at constant intervals
*/
m_time_of_day_send_timer -= dtime;
if(m_time_of_day_send_timer < 0.0)
{
m_time_of_day_send_timer = g_settings.getFloat("time_send_interval");
//JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
//Player *player = m_env.getPlayer(client->peer_id);
SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
m_time_of_day.get());
// Send as reliable
m_con.Send(client->peer_id, 0, data, true);
}
}
}
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{
// Process connection's timeouts
JMutexAutoLock lock2(m_con_mutex);
m_con.RunTimeouts(dtime);
}
{
// This has to be called so that the client list gets synced
// with the peer list of the connection
handlePeerChanges();
}
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{
// Step environment
// This also runs Map's timers
JMutexAutoLock lock(m_env_mutex);
m_env.step(dtime);
}
/*
Do background stuff
*/
/*
Flow water
*/
{
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float interval;
if(g_settings.getBool("endless_water") == false)
interval = 1.0;
else
interval = 0.25;
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float &counter = m_flowwater_timer;
counter += dtime;
if(counter >= 0.25 && m_flow_active_nodes.size() > 0)
{
counter = 0.0;
core::map<v3s16, MapBlock*> modified_blocks;
{
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JMutexAutoLock envlock(m_env_mutex);
MapVoxelManipulator v(&m_env.getMap());
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v.m_disable_water_climb =
g_settings.getBool("disable_water_climb");
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if(g_settings.getBool("endless_water") == false)
v.flowWater(m_flow_active_nodes, 0, false, 250);
else
v.flowWater(m_flow_active_nodes, 0, false, 50);
v.blitBack(modified_blocks);
ServerMap &map = ((ServerMap&)m_env.getMap());
// Update lighting
core::map<v3s16, MapBlock*> lighting_modified_blocks;
map.updateLighting(modified_blocks, lighting_modified_blocks);
// Add blocks modified by lighting to modified_blocks
for(core::map<v3s16, MapBlock*>::Iterator
i = lighting_modified_blocks.getIterator();
i.atEnd() == false; i++)
{
MapBlock *block = i.getNode()->getValue();
modified_blocks.insert(block->getPos(), block);
}
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} // envlock
/*
Set the modified blocks unsent for all the clients
*/
JMutexAutoLock lock2(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
if(modified_blocks.size() > 0)
{
// Remove block from sent history
client->SetBlocksNotSent(modified_blocks);
}
}
} // interval counter
}
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// Periodically print some info
{
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float &counter = m_print_info_timer;
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counter += dtime;
if(counter >= 30.0)
{
counter = 0.0;
JMutexAutoLock lock2(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
//u16 peer_id = i.getNode()->getKey();
RemoteClient *client = i.getNode()->getValue();
client->PrintInfo(std::cout);
}
}
}
/*
Update digging
NOTE: Some of this could be moved to RemoteClient
*/
#if 0
{
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
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for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
Player *player = m_env.getPlayer(client->peer_id);
JMutexAutoLock digmutex(client->m_dig_mutex);
if(client->m_dig_tool_item == -1)
continue;
client->m_dig_time_remaining -= dtime;
if(client->m_dig_time_remaining > 0)
{
client->m_time_from_building.set(0.0);
continue;
}
v3s16 p_under = client->m_dig_position;
// Mandatory parameter; actually used for nothing
core::map<v3s16, MapBlock*> modified_blocks;
u8 material;
try
{
// Get material at position
material = m_env.getMap().getNode(p_under).d;
// If it's not diggable, do nothing
if(content_diggable(material) == false)
{
derr_server<<"Server: Not finishing digging: Node not diggable"
<<std::endl;
client->m_dig_tool_item = -1;
break;
}
}
catch(InvalidPositionException &e)
{
derr_server<<"Server: Not finishing digging: Node not found"
<<std::endl;
client->m_dig_tool_item = -1;
break;
}
// Create packet
u32 replysize = 8;
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOCLIENT_REMOVENODE);
writeS16(&reply[2], p_under.X);
writeS16(&reply[4], p_under.Y);
writeS16(&reply[6], p_under.Z);
// Send as reliable
m_con.SendToAll(0, reply, true);
if(g_settings.getBool("creative_mode") == false)
{
// Add to inventory and send inventory
InventoryItem *item = new MaterialItem(material, 1);
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player->inventory.addItem("main", item);
SendInventory(player->peer_id);
}
/*
Remove the node
(this takes some time so it is done after the quick stuff)
*/
m_env.getMap().removeNodeAndUpdate(p_under, modified_blocks);
/*
Update water
*/
// Update water pressure around modification
// This also adds it to m_flow_active_nodes if appropriate
MapVoxelManipulator v(&m_env.getMap());
v.m_disable_water_climb =
g_settings.getBool("disable_water_climb");
VoxelArea area(p_under-v3s16(1,1,1), p_under+v3s16(1,1,1));
try
{
v.updateAreaWaterPressure(area, m_flow_active_nodes);
}
catch(ProcessingLimitException &e)
{
dstream<<"Processing limit reached (1)"<<std::endl;
}
v.blitBack(modified_blocks);
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}
}
#endif
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// Send object positions
{
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float &counter = m_objectdata_timer;
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counter += dtime;
if(counter >= g_settings.getFloat("objectdata_interval"))
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{
JMutexAutoLock lock1(m_env_mutex);
JMutexAutoLock lock2(m_con_mutex);
SendObjectData(counter);
counter = 0.0;
}
}
// Trigger emergethread (it gets somehow gets to a
// non-triggered but bysy state sometimes)
{
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float &counter = m_emergethread_trigger_timer;
counter += dtime;
if(counter >= 2.0)
{
counter = 0.0;
m_emergethread.trigger();
}
}
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// Save map
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{
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float &counter = m_savemap_timer;
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counter += dtime;
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if(counter >= g_settings.getFloat("server_map_save_interval"))
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{
counter = 0.0;
JMutexAutoLock lock(m_env_mutex);
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// Save only changed parts
m_env.getMap().save(true);
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// Delete unused sectors
u32 deleted_count = m_env.getMap().deleteUnusedSectors(
g_settings.getFloat("server_unload_unused_sectors_timeout"));
if(deleted_count > 0)
{
dout_server<<"Server: Unloaded "<<deleted_count
<<" sectors from memory"<<std::endl;
}
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}
}
}
void Server::Receive()
{
DSTACK(__FUNCTION_NAME);
u32 data_maxsize = 10000;
Buffer<u8> data(data_maxsize);
u16 peer_id;
u32 datasize;
try{
{
JMutexAutoLock conlock(m_con_mutex);
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datasize = m_con.Receive(peer_id, *data, data_maxsize);
}
// This has to be called so that the client list gets synced
// with the peer list of the connection
handlePeerChanges();
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ProcessData(*data, datasize, peer_id);
}
catch(con::InvalidIncomingDataException &e)
{
derr_server<<"Server::Receive(): "
"InvalidIncomingDataException: what()="
<<e.what()<<std::endl;
}
catch(con::PeerNotFoundException &e)
{
//NOTE: This is not needed anymore
// The peer has been disconnected.
// Find the associated player and remove it.
/*JMutexAutoLock envlock(m_env_mutex);
dout_server<<"ServerThread: peer_id="<<peer_id
<<" has apparently closed connection. "
<<"Removing player."<<std::endl;
m_env.removePlayer(peer_id);*/
}
}
void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
// Environment is locked first.
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
con::Peer *peer;
try{
peer = m_con.GetPeer(peer_id);
}
catch(con::PeerNotFoundException &e)
{
derr_server<<DTIME<<"Server::ProcessData(): Cancelling: peer "
<<peer_id<<" not found"<<std::endl;
return;
}
//u8 peer_ser_ver = peer->serialization_version;
u8 peer_ser_ver = getClient(peer->id)->serialization_version;
try
{
if(datasize < 2)
return;
ToServerCommand command = (ToServerCommand)readU16(&data[0]);
if(command == TOSERVER_INIT)
{
// [0] u16 TOSERVER_INIT
// [2] u8 SER_FMT_VER_HIGHEST
// [3] u8[20] player_name
if(datasize < 3)
return;
derr_server<<DTIME<<"Server: Got TOSERVER_INIT from "
<<peer->id<<std::endl;
// First byte after command is maximum supported
// serialization version
u8 client_max = data[2];
u8 our_max = SER_FMT_VER_HIGHEST;
// Use the highest version supported by both
u8 deployed = core::min_(client_max, our_max);
// If it's lower than the lowest supported, give up.
if(deployed < SER_FMT_VER_LOWEST)
deployed = SER_FMT_VER_INVALID;
//peer->serialization_version = deployed;
getClient(peer->id)->pending_serialization_version = deployed;
if(deployed == SER_FMT_VER_INVALID)
{
derr_server<<DTIME<<"Server: Cannot negotiate "
"serialization version with peer "
<<peer_id<<std::endl;
return;
}
/*
Set up player
*/
Player *player = m_env.getPlayer(peer_id);
// Check if player doesn't exist
if(player == NULL)
throw con::InvalidIncomingDataException
("Server::ProcessData(): INIT: Player doesn't exist");
// update name if it was supplied
if(datasize >= 20+3)
{
data[20+3-1] = 0;
player->updateName((const char*)&data[3]);
}
// Now answer with a TOCLIENT_INIT
SharedBuffer<u8> reply(2+1+6);
writeU16(&reply[0], TOCLIENT_INIT);
writeU8(&reply[2], deployed);
writeV3S16(&reply[3], floatToInt(player->getPosition()+v3f(0,BS/2,0)));
// Send as reliable
m_con.Send(peer_id, 0, reply, true);
return;
}
if(command == TOSERVER_INIT2)
{
derr_server<<DTIME<<"Server: Got TOSERVER_INIT2 from "
<<peer->id<<std::endl;
getClient(peer->id)->serialization_version
= getClient(peer->id)->pending_serialization_version;
/*
Send some initialization data
*/
// Send player info to all players
SendPlayerInfos();
// Send inventory to player
SendInventory(peer->id);
// Send time of day
{
SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
m_time_of_day.get());
m_con.Send(peer->id, 0, data, true);
}
// Send information about server to player in chat
{
std::wostringstream os(std::ios_base::binary);
os<<L"# Server: ";
// Uptime
os<<L"uptime="<<m_uptime.get();
// Information about clients
os<<L", clients={";
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Get name of player
std::wstring name = L"unknown";
Player *player = m_env.getPlayer(client->peer_id);
if(player != NULL)
name = narrow_to_wide(player->getName());
// Add name to information string
os<<name<<L",";
}
os<<L"}";
// Send message
SendChatMessage(peer_id, os.str());
}
// Send information about joining in chat
{
std::wstring name = L"unknown";
Player *player = m_env.getPlayer(peer_id);
if(player != NULL)
name = narrow_to_wide(player->getName());
std::wstring message;
message += L"*** ";
message += name;
message += L" joined game";
BroadcastChatMessage(message);
}
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return;
}
if(peer_ser_ver == SER_FMT_VER_INVALID)
{
derr_server<<DTIME<<"Server::ProcessData(): Cancelling: Peer"
" serialization format invalid or not initialized."
" Skipping incoming command="<<command<<std::endl;
return;
}
Player *player = m_env.getPlayer(peer_id);
if(player == NULL){
derr_server<<"Server::ProcessData(): Cancelling: "
"No player for peer_id="<<peer_id
<<std::endl;
return;
}
if(command == TOSERVER_PLAYERPOS)
{
if(datasize < 2+12+12+4+4)
return;
u32 start = 0;
v3s32 ps = readV3S32(&data[start+2]);
v3s32 ss = readV3S32(&data[start+2+12]);
f32 pitch = (f32)readS32(&data[2+12+12]) / 100.0;
f32 yaw = (f32)readS32(&data[2+12+12+4]) / 100.0;
v3f position((f32)ps.X/100., (f32)ps.Y/100., (f32)ps.Z/100.);
v3f speed((f32)ss.X/100., (f32)ss.Y/100., (f32)ss.Z/100.);
pitch = wrapDegrees(pitch);
yaw = wrapDegrees(yaw);
player->setPosition(position);
player->setSpeed(speed);
player->setPitch(pitch);
player->setYaw(yaw);
/*dout_server<<"Server::ProcessData(): Moved player "<<peer_id<<" to "
<<"("<<position.X<<","<<position.Y<<","<<position.Z<<")"
<<" pitch="<<pitch<<" yaw="<<yaw<<std::endl;*/
}
else if(command == TOSERVER_GOTBLOCKS)
{
if(datasize < 2+1)
return;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u16 count = data[2];
for(u16 i=0; i<count; i++)
{
if((s16)datasize < 2+1+(i+1)*6)
throw con::InvalidIncomingDataException
("GOTBLOCKS length is too short");
v3s16 p = readV3S16(&data[2+1+i*6]);
/*dstream<<"Server: GOTBLOCKS ("
<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
RemoteClient *client = getClient(peer_id);
client->GotBlock(p);
}
}
else if(command == TOSERVER_DELETEDBLOCKS)
{
if(datasize < 2+1)
return;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u16 count = data[2];
for(u16 i=0; i<count; i++)
{
if((s16)datasize < 2+1+(i+1)*6)
throw con::InvalidIncomingDataException
("DELETEDBLOCKS length is too short");
v3s16 p = readV3S16(&data[2+1+i*6]);
/*dstream<<"Server: DELETEDBLOCKS ("
<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
RemoteClient *client = getClient(peer_id);
client->SetBlockNotSent(p);
}
}
else if(command == TOSERVER_CLICK_OBJECT)
{
if(datasize < 13)
return;
/*
[0] u16 command
[2] u8 button (0=left, 1=right)
[3] v3s16 block
[9] s16 id
[11] u16 item
*/
u8 button = readU8(&data[2]);
v3s16 p;
p.X = readS16(&data[3]);
p.Y = readS16(&data[5]);
p.Z = readS16(&data[7]);
s16 id = readS16(&data[9]);
//u16 item_i = readU16(&data[11]);
MapBlock *block = NULL;
try
{
block = m_env.getMap().getBlockNoCreate(p);
}
catch(InvalidPositionException &e)
{
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derr_server<<"CLICK_OBJECT block not found"<<std::endl;
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return;
}
MapBlockObject *obj = block->getObject(id);
if(obj == NULL)
{
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derr_server<<"CLICK_OBJECT object not found"<<std::endl;
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return;
}
//TODO: Check that object is reasonably close
// Left click
if(button == 0)
{
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InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist != NULL)
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{
// Skip if inventory has no free space
2010-12-22 10:29:06 +01:00
if(ilist->getUsedSlots() == ilist->getSize())
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{
dout_server<<"Player inventory has no free space"<<std::endl;
return;
}
2010-12-24 02:08:05 +01:00
/*
Create the inventory item
*/
InventoryItem *item = NULL;
// If it is an item-object, take the item from it
if(obj->getTypeId() == MAPBLOCKOBJECT_TYPE_ITEM)
{
item = ((ItemObject*)obj)->createInventoryItem();
}
// Else create an item of the object
else
{
item = new MapBlockObjectItem
(obj->getInventoryString());
}
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// Add to inventory and send inventory
2010-12-22 10:29:06 +01:00
ilist->addItem(item);
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SendInventory(player->peer_id);
}
// Remove from block
block->removeObject(id);
}
}
else if(command == TOSERVER_GROUND_ACTION)
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{
if(datasize < 17)
return;
/*
length: 17
[0] u16 command
[2] u8 action
2010-11-27 00:02:21 +01:00
[3] v3s16 nodepos_undersurface
[9] v3s16 nodepos_abovesurface
[15] u16 item
actions:
0: start digging
1: place block
2: stop digging (all parameters ignored)
2010-11-27 00:02:21 +01:00
*/
u8 action = readU8(&data[2]);
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v3s16 p_under;
p_under.X = readS16(&data[3]);
p_under.Y = readS16(&data[5]);
p_under.Z = readS16(&data[7]);
v3s16 p_over;
p_over.X = readS16(&data[9]);
p_over.Y = readS16(&data[11]);
p_over.Z = readS16(&data[13]);
u16 item_i = readU16(&data[15]);
//TODO: Check that target is reasonably close
/*
0: start digging
2010-11-27 00:02:21 +01:00
*/
if(action == 0)
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{
/*
NOTE: This can be used in the future to check if
somebody is cheating, by checking the timing.
*/
} // action == 0
/*
2: stop digging
*/
else if(action == 2)
{
#if 0
RemoteClient *client = getClient(peer->id);
JMutexAutoLock digmutex(client->m_dig_mutex);
client->m_dig_tool_item = -1;
#endif
}
/*
3: Digging completed
*/
2010-12-24 10:44:26 +01:00
else if(action == 3)
{
// Mandatory parameter; actually used for nothing
core::map<v3s16, MapBlock*> modified_blocks;
u8 material;
try
{
// Get material at position
material = m_env.getMap().getNode(p_under).d;
// If it's not diggable, do nothing
if(content_diggable(material) == false)
{
derr_server<<"Server: Not finishing digging: Node not diggable"
<<std::endl;
return;
}
}
catch(InvalidPositionException &e)
{
derr_server<<"Server: Not finishing digging: Node not found"
<<std::endl;
return;
}
//TODO: Send to only other clients
/*
Send the removal to all other clients
*/
// Create packet
u32 replysize = 8;
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOCLIENT_REMOVENODE);
writeS16(&reply[2], p_under.X);
writeS16(&reply[4], p_under.Y);
writeS16(&reply[6], p_under.Z);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Don't send if it's the same one
if(peer_id == client->peer_id)
continue;
// Send as reliable
m_con.Send(client->peer_id, 0, reply, true);
}
/*
Update and send inventory
*/
if(g_settings.getBool("creative_mode") == false)
{
2010-12-25 00:54:39 +01:00
/*
Wear out tool
*/
InventoryList *mlist = player->inventory.getList("main");
if(mlist != NULL)
{
InventoryItem *item = mlist->getItem(item_i);
if(item && (std::string)item->getName() == "ToolItem")
{
ToolItem *titem = (ToolItem*)item;
std::string toolname = titem->getToolName();
// Get digging properties for material and tool
DiggingProperties prop =
getDiggingProperties(material, toolname);
if(prop.diggable == false)
{
derr_server<<"Server: WARNING: Player digged"
<<" with impossible material + tool"
<<" combination"<<std::endl;
}
bool weared_out = titem->addWear(prop.wear);
if(weared_out)
{
mlist->deleteItem(item_i);
}
}
}
/*
Add digged item to inventory
*/
InventoryItem *item = new MaterialItem(material, 1);
player->inventory.addItem("main", item);
2010-12-25 00:54:39 +01:00
/*
Send inventory
*/
SendInventory(player->peer_id);
}
/*
Remove the node
(this takes some time so it is done after the quick stuff)
*/
m_env.getMap().removeNodeAndUpdate(p_under, modified_blocks);
/*
Update water
*/
// Update water pressure around modification
// This also adds it to m_flow_active_nodes if appropriate
MapVoxelManipulator v(&m_env.getMap());
v.m_disable_water_climb =
g_settings.getBool("disable_water_climb");
VoxelArea area(p_under-v3s16(1,1,1), p_under+v3s16(1,1,1));
try
{
v.updateAreaWaterPressure(area, m_flow_active_nodes);
}
catch(ProcessingLimitException &e)
{
dstream<<"Processing limit reached (1)"<<std::endl;
}
v.blitBack(modified_blocks);
}
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/*
1: place block
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*/
else if(action == 1)
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{
2010-12-22 10:29:06 +01:00
InventoryList *ilist = player->inventory.getList("main");
if(ilist == NULL)
return;
2010-11-27 00:02:21 +01:00
// Get item
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InventoryItem *item = ilist->getItem(item_i);
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// If there is no item, it is not possible to add it anywhere
if(item == NULL)
return;
/*
Handle material items
*/
if(std::string("MaterialItem") == item->getName())
{
try{
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// Don't add a node if this is not a free space
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MapNode n2 = m_env.getMap().getNode(p_over);
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if(content_buildable_to(n2.d) == false)
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return;
}
catch(InvalidPositionException &e)
{
derr_server<<"Server: Ignoring ADDNODE: Node not found"
<<std::endl;
return;
}
// Reset build time counter
getClient(peer->id)->m_time_from_building.set(0.0);
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// Create node data
MaterialItem *mitem = (MaterialItem*)item;
MapNode n;
n.d = mitem->getMaterial();
if(content_directional(n.d))
n.dir = packDir(p_under - p_over);
#if 1
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// Create packet
u32 replysize = 8 + MapNode::serializedLength(peer_ser_ver);
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOCLIENT_ADDNODE);
writeS16(&reply[2], p_over.X);
writeS16(&reply[4], p_over.Y);
writeS16(&reply[6], p_over.Z);
n.serialize(&reply[8], peer_ser_ver);
// Send as reliable
m_con.SendToAll(0, reply, true);
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/*
Handle inventory
*/
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InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist)
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{
// Remove from inventory and send inventory
if(mitem->getCount() == 1)
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ilist->deleteItem(item_i);
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else
mitem->remove(1);
// Send inventory
SendInventory(peer_id);
}
/*
Add node.
This takes some time so it is done after the quick stuff
*/
core::map<v3s16, MapBlock*> modified_blocks;
m_env.getMap().addNodeAndUpdate(p_over, n, modified_blocks);
2010-12-13 02:19:12 +01:00
#endif
#if 0
/*
Handle inventory
*/
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InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist)
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{
// Remove from inventory and send inventory
if(mitem->getCount() == 1)
2010-12-22 10:29:06 +01:00
ilist->deleteItem(item_i);
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else
mitem->remove(1);
// Send inventory
SendInventory(peer_id);
}
/*
Add node.
This takes some time so it is done after the quick stuff
*/
core::map<v3s16, MapBlock*> modified_blocks;
m_env.getMap().addNodeAndUpdate(p_over, n, modified_blocks);
/*
Set the modified blocks unsent for all the clients
*/
//JMutexAutoLock lock2(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
if(modified_blocks.size() > 0)
{
// Remove block from sent history
client->SetBlocksNotSent(modified_blocks);
}
}
#endif
/*
Update water
*/
// Update water pressure around modification
// This also adds it to m_flow_active_nodes if appropriate
MapVoxelManipulator v(&m_env.getMap());
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v.m_disable_water_climb =
g_settings.getBool("disable_water_climb");
VoxelArea area(p_over-v3s16(1,1,1), p_over+v3s16(1,1,1));
try
{
v.updateAreaWaterPressure(area, m_flow_active_nodes);
}
catch(ProcessingLimitException &e)
{
dstream<<"Processing limit reached (1)"<<std::endl;
}
v.blitBack(modified_blocks);
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}
/*
2010-12-24 02:08:05 +01:00
Handle other items
2010-11-27 00:02:21 +01:00
*/
2010-12-24 02:08:05 +01:00
else
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{
v3s16 blockpos = getNodeBlockPos(p_over);
MapBlock *block = NULL;
try
{
block = m_env.getMap().getBlockNoCreate(blockpos);
}
catch(InvalidPositionException &e)
{
derr_server<<"Error while placing object: "
"block not found"<<std::endl;
return;
}
v3s16 block_pos_i_on_map = block->getPosRelative();
v3f block_pos_f_on_map = intToFloat(block_pos_i_on_map);
v3f pos = intToFloat(p_over);
pos -= block_pos_f_on_map;
/*dout_server<<"pos="
<<"("<<pos.X<<","<<pos.Y<<","<<pos.Z<<")"
<<std::endl;*/
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MapBlockObject *obj = NULL;
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2010-12-24 02:08:05 +01:00
/*
Handle block object items
*/
if(std::string("MBOItem") == item->getName())
{
MapBlockObjectItem *oitem = (MapBlockObjectItem*)item;
/*dout_server<<"Trying to place a MapBlockObjectItem: "
"inventorystring=\""
<<oitem->getInventoryString()
<<"\""<<std::endl;*/
obj = oitem->createObject
(pos, player->getYaw(), player->getPitch());
}
/*
Handle other items
*/
else
{
dout_server<<"Placing a miscellaneous item on map"
<<std::endl;
/*
Create an ItemObject that contains the item.
*/
ItemObject *iobj = new ItemObject(NULL, -1, pos);
std::ostringstream os(std::ios_base::binary);
item->serialize(os);
dout_server<<"Item string is \""<<os.str()<<"\""<<std::endl;
iobj->setItemString(os.str());
obj = iobj;
}
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if(obj == NULL)
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{
derr_server<<"WARNING: item resulted in NULL object, "
<<"not placing onto map"
2010-11-27 00:02:21 +01:00
<<std::endl;
2010-12-24 02:08:05 +01:00
}
else
{
block->addObject(obj);
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2010-12-24 02:08:05 +01:00
dout_server<<"Placed object"<<std::endl;
2010-11-27 00:02:21 +01:00
2010-12-24 02:08:05 +01:00
InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist)
{
// Remove from inventory and send inventory
ilist->deleteItem(item_i);
// Send inventory
SendInventory(peer_id);
}
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}
}
} // action == 1
2010-11-27 00:02:21 +01:00
/*
Catch invalid actions
2010-11-27 00:02:21 +01:00
*/
else
{
derr_server<<"WARNING: Server: Invalid action "
<<action<<std::endl;
2010-11-27 00:02:21 +01:00
}
}
#if 0
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else if(command == TOSERVER_RELEASE)
{
if(datasize < 3)
return;
/*
length: 3
[0] u16 command
[2] u8 button
*/
dstream<<"TOSERVER_RELEASE ignored"<<std::endl;
2010-11-27 00:02:21 +01:00
}
#endif
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else if(command == TOSERVER_SIGNTEXT)
{
/*
u16 command
v3s16 blockpos
s16 id
u16 textlen
textdata
*/
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
u8 buf[6];
// Read stuff
is.read((char*)buf, 6);
v3s16 blockpos = readV3S16(buf);
is.read((char*)buf, 2);
s16 id = readS16(buf);
is.read((char*)buf, 2);
u16 textlen = readU16(buf);
std::string text;
for(u16 i=0; i<textlen; i++)
{
is.read((char*)buf, 1);
text += (char)buf[0];
}
MapBlock *block = NULL;
try
{
block = m_env.getMap().getBlockNoCreate(blockpos);
}
catch(InvalidPositionException &e)
{
derr_server<<"Error while setting sign text: "
"block not found"<<std::endl;
return;
}
MapBlockObject *obj = block->getObject(id);
if(obj == NULL)
{
derr_server<<"Error while setting sign text: "
"object not found"<<std::endl;
return;
}
if(obj->getTypeId() != MAPBLOCKOBJECT_TYPE_SIGN)
{
derr_server<<"Error while setting sign text: "
"object is not a sign"<<std::endl;
return;
}
((SignObject*)obj)->setText(text);
obj->getBlock()->setChangedFlag();
}
2010-12-22 15:30:23 +01:00
else if(command == TOSERVER_INVENTORY_ACTION)
{
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/*// Ignore inventory changes if in creative mode
2010-12-22 15:30:23 +01:00
if(g_settings.getBool("creative_mode") == true)
{
dstream<<"TOSERVER_INVENTORY_ACTION: ignoring in creative mode"
<<std::endl;
return;
2010-12-25 15:04:51 +01:00
}*/
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// Strip command and create a stream
std::string datastring((char*)&data[2], datasize-2);
dstream<<"TOSERVER_INVENTORY_ACTION: data="<<datastring<<std::endl;
std::istringstream is(datastring, std::ios_base::binary);
// Create an action
InventoryAction *a = InventoryAction::deSerialize(is);
if(a != NULL)
{
/*
2010-12-25 15:04:51 +01:00
Handle craftresult specially if not in creative mode
2010-12-22 15:30:23 +01:00
*/
bool disable_action = false;
2010-12-25 15:04:51 +01:00
if(a->getType() == IACTION_MOVE
&& g_settings.getBool("creative_mode") == false)
2010-12-22 15:30:23 +01:00
{
IMoveAction *ma = (IMoveAction*)a;
// Don't allow moving anything to craftresult
if(ma->to_name == "craftresult")
{
// Do nothing
disable_action = true;
}
// When something is removed from craftresult
if(ma->from_name == "craftresult")
{
disable_action = true;
// Remove stuff from craft
InventoryList *clist = player->inventory.getList("craft");
if(clist)
{
u16 count = ma->count;
if(count == 0)
count = 1;
clist->decrementMaterials(count);
2010-12-22 15:30:23 +01:00
}
// Do action
// Feed action to player inventory
a->apply(&player->inventory);
// Eat it
delete a;
// If something appeared in craftresult, throw it
// in the main list
InventoryList *rlist = player->inventory.getList("craftresult");
InventoryList *mlist = player->inventory.getList("main");
if(rlist && mlist && rlist->getUsedSlots() == 1)
{
InventoryItem *item1 = rlist->changeItem(0, NULL);
mlist->addItem(item1);
}
}
}
if(disable_action == false)
{
// Feed action to player inventory
a->apply(&player->inventory);
// Eat it
delete a;
}
// Send inventory
SendInventory(player->peer_id);
}
else
{
dstream<<"TOSERVER_INVENTORY_ACTION: "
<<"InventoryAction::deSerialize() returned NULL"
<<std::endl;
}
}
else if(command == TOSERVER_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);
}
2010-12-25 02:33:38 +01:00
// Get player name of this client
std::wstring name = narrow_to_wide(player->getName());
std::wstring line = std::wstring(L"<")+name+L"> "+message;
2010-12-25 15:04:51 +01:00
dstream<<"CHAT: "<<wide_to_narrow(line)<<std::endl;
/*
Send the message to all other clients
*/
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Don't send if it's the same one
if(peer_id == client->peer_id)
continue;
2010-12-25 02:33:38 +01:00
SendChatMessage(client->peer_id, line);
}
}
2010-11-27 00:02:21 +01:00
else
{
derr_server<<"WARNING: Server::ProcessData(): Ignoring "
"unknown command "<<command<<std::endl;
}
} //try
catch(SendFailedException &e)
{
derr_server<<"Server::ProcessData(): SendFailedException: "
<<"what="<<e.what()
<<std::endl;
}
}
/*void Server::Send(u16 peer_id, u16 channelnum,
SharedBuffer<u8> data, bool reliable)
{
JMutexAutoLock lock(m_con_mutex);
m_con.Send(peer_id, channelnum, data, reliable);
}*/
void Server::SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver)
{
DSTACK(__FUNCTION_NAME);
/*
Create a packet with the block in the right format
*/
std::ostringstream os(std::ios_base::binary);
block->serialize(os, ver);
std::string s = os.str();
SharedBuffer<u8> blockdata((u8*)s.c_str(), s.size());
u32 replysize = 8 + blockdata.getSize();
SharedBuffer<u8> reply(replysize);
v3s16 p = block->getPos();
writeU16(&reply[0], TOCLIENT_BLOCKDATA);
writeS16(&reply[2], p.X);
writeS16(&reply[4], p.Y);
writeS16(&reply[6], p.Z);
memcpy(&reply[8], *blockdata, blockdata.getSize());
2010-12-13 02:19:12 +01:00
2010-12-14 00:56:24 +01:00
/*dstream<<"Sending block ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
<<": \tpacket size: "<<replysize<<std::endl;*/
2010-11-27 00:02:21 +01:00
/*
Send packet
*/
m_con.Send(peer_id, 1, reply, true);
}
core::list<PlayerInfo> Server::getPlayerInfo()
{
DSTACK(__FUNCTION_NAME);
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
core::list<PlayerInfo> list;
core::list<Player*> players = m_env.getPlayers();
core::list<Player*>::Iterator i;
for(i = players.begin();
i != players.end(); i++)
{
PlayerInfo info;
Player *player = *i;
try{
con::Peer *peer = m_con.GetPeer(player->peer_id);
info.id = peer->id;
info.address = peer->address;
info.avg_rtt = peer->avg_rtt;
}
catch(con::PeerNotFoundException &e)
{
// Outdated peer info
info.id = 0;
info.address = Address(0,0,0,0,0);
info.avg_rtt = 0.0;
}
snprintf(info.name, PLAYERNAME_SIZE, "%s", player->getName());
info.position = player->getPosition();
list.push_back(info);
}
return list;
}
void Server::peerAdded(con::Peer *peer)
{
DSTACK(__FUNCTION_NAME);
dout_server<<"Server::peerAdded(): peer->id="
<<peer->id<<std::endl;
PeerChange c;
c.type = PEER_ADDED;
c.peer_id = peer->id;
c.timeout = false;
m_peer_change_queue.push_back(c);
2010-11-27 00:02:21 +01:00
}
void Server::deletingPeer(con::Peer *peer, bool timeout)
{
DSTACK(__FUNCTION_NAME);
dout_server<<"Server::deletingPeer(): peer->id="
<<peer->id<<", timeout="<<timeout<<std::endl;
PeerChange c;
c.type = PEER_REMOVED;
c.peer_id = peer->id;
c.timeout = timeout;
m_peer_change_queue.push_back(c);
2010-11-27 00:02:21 +01:00
}
void Server::SendObjectData(float dtime)
{
DSTACK(__FUNCTION_NAME);
core::map<v3s16, bool> stepped_blocks;
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
u16 peer_id = i.getNode()->getKey();
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == peer_id);
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
client->SendObjectData(this, dtime, stepped_blocks);
}
}
void Server::SendPlayerInfos()
{
DSTACK(__FUNCTION_NAME);
//JMutexAutoLock envlock(m_env_mutex);
core::list<Player*> players = m_env.getPlayers();
u32 player_count = players.getSize();
u32 datasize = 2+(2+PLAYERNAME_SIZE)*player_count;
SharedBuffer<u8> data(datasize);
writeU16(&data[0], TOCLIENT_PLAYERINFO);
u32 start = 2;
core::list<Player*>::Iterator i;
for(i = players.begin();
i != players.end(); i++)
{
Player *player = *i;
/*dstream<<"Server sending player info for player with "
"peer_id="<<player->peer_id<<std::endl;*/
writeU16(&data[start], player->peer_id);
snprintf((char*)&data[start+2], PLAYERNAME_SIZE, "%s", player->getName());
start += 2+PLAYERNAME_SIZE;
}
//JMutexAutoLock conlock(m_con_mutex);
// Send as reliable
m_con.SendToAll(0, data, true);
}
2010-12-25 00:54:39 +01:00
enum ItemSpecType
{
ITEM_NONE,
ITEM_MATERIAL,
ITEM_CRAFT,
ITEM_TOOL,
ITEM_MBO
};
struct ItemSpec
{
ItemSpec():
type(ITEM_NONE)
{
}
ItemSpec(enum ItemSpecType a_type, std::string a_name):
type(a_type),
name(a_name),
num(65535)
{
}
ItemSpec(enum ItemSpecType a_type, u16 a_num):
type(a_type),
name(""),
num(a_num)
{
}
enum ItemSpecType type;
// Only other one of these is used
std::string name;
u16 num;
};
/*
items: a pointer to an array of 9 pointers to items
specs: a pointer to an array of 9 ItemSpecs
*/
bool checkItemCombination(InventoryItem **items, ItemSpec *specs)
{
u16 items_min_x = 100;
u16 items_max_x = 100;
u16 items_min_y = 100;
u16 items_max_y = 100;
for(u16 y=0; y<3; y++)
for(u16 x=0; x<3; x++)
{
if(items[y*3 + x] == NULL)
continue;
if(items_min_x == 100 || x < items_min_x)
items_min_x = x;
if(items_min_y == 100 || y < items_min_y)
items_min_y = y;
if(items_max_x == 100 || x > items_max_x)
items_max_x = x;
if(items_max_y == 100 || y > items_max_y)
items_max_y = y;
}
// No items at all, just return false
if(items_min_x == 100)
return false;
u16 items_w = items_max_x - items_min_x + 1;
u16 items_h = items_max_y - items_min_y + 1;
u16 specs_min_x = 100;
u16 specs_max_x = 100;
u16 specs_min_y = 100;
u16 specs_max_y = 100;
for(u16 y=0; y<3; y++)
for(u16 x=0; x<3; x++)
{
if(specs[y*3 + x].type == ITEM_NONE)
continue;
if(specs_min_x == 100 || x < specs_min_x)
specs_min_x = x;
if(specs_min_y == 100 || y < specs_min_y)
specs_min_y = y;
if(specs_max_x == 100 || x > specs_max_x)
specs_max_x = x;
if(specs_max_y == 100 || y > specs_max_y)
specs_max_y = y;
}
// No specs at all, just return false
if(specs_min_x == 100)
return false;
u16 specs_w = specs_max_x - specs_min_x + 1;
u16 specs_h = specs_max_y - specs_min_y + 1;
// Different sizes
if(items_w != specs_w || items_h != specs_h)
return false;
for(u16 y=0; y<specs_h; y++)
for(u16 x=0; x<specs_w; x++)
{
u16 items_x = items_min_x + x;
u16 items_y = items_min_y + y;
u16 specs_x = specs_min_x + x;
u16 specs_y = specs_min_y + y;
InventoryItem *item = items[items_y * 3 + items_x];
ItemSpec &spec = specs[specs_y * 3 + specs_x];
if(spec.type == ITEM_NONE)
{
// Has to be no item
if(item != NULL)
return false;
continue;
}
// There should be an item
if(item == NULL)
return false;
std::string itemname = item->getName();
if(spec.type == ITEM_MATERIAL)
{
if(itemname != "MaterialItem")
return false;
MaterialItem *mitem = (MaterialItem*)item;
if(mitem->getMaterial() != spec.num)
return false;
}
else if(spec.type == ITEM_CRAFT)
{
if(itemname != "CraftItem")
return false;
CraftItem *mitem = (CraftItem*)item;
if(mitem->getSubName() != spec.name)
return false;
}
else if(spec.type == ITEM_TOOL)
{
// Not supported yet
assert(0);
}
else if(spec.type == ITEM_MBO)
{
// Not supported yet
assert(0);
}
else
{
// Not supported yet
assert(0);
}
}
return true;
}
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void Server::SendInventory(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
Player* player = m_env.getPlayer(peer_id);
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/*
Calculate crafting stuff
*/
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if(g_settings.getBool("creative_mode") == false)
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{
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InventoryList *clist = player->inventory.getList("craft");
InventoryList *rlist = player->inventory.getList("craftresult");
if(rlist)
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{
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rlist->clearItems();
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}
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if(clist && rlist)
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{
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InventoryItem *items[9];
for(u16 i=0; i<9; i++)
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{
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items[i] = clist->getItem(i);
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}
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bool found = false;
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// Wood
if(!found)
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{
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ItemSpec specs[9];
specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_TREE);
if(checkItemCombination(items, specs))
{
rlist->addItem(new MaterialItem(CONTENT_WOOD, 4));
found = true;
}
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}
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// Stick
if(!found)
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{
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ItemSpec specs[9];
specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
if(checkItemCombination(items, specs))
{
rlist->addItem(new CraftItem("Stick", 4));
found = true;
}
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}
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// Sign
if(!found)
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{
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ItemSpec specs[9];
specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[1] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[2] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[3] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[4] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[5] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[7] = ItemSpec(ITEM_CRAFT, "Stick");
if(checkItemCombination(items, specs))
{
rlist->addItem(new MapBlockObjectItem("Sign"));
found = true;
}
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}
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// Torch
if(!found)
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{
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ItemSpec specs[9];
specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_COALSTONE);
specs[3] = ItemSpec(ITEM_CRAFT, "Stick");
if(checkItemCombination(items, specs))
{
rlist->addItem(new MaterialItem(CONTENT_TORCH, 4));
found = true;
}
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}
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// Wooden pick
if(!found)
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{
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ItemSpec specs[9];
specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[1] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[2] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
specs[4] = ItemSpec(ITEM_CRAFT, "Stick");
specs[7] = ItemSpec(ITEM_CRAFT, "Stick");
if(checkItemCombination(items, specs))
{
rlist->addItem(new ToolItem("WPick", 0));
found = true;
}
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}
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// Stone pick
if(!found)
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{
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ItemSpec specs[9];
specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_STONE);
specs[1] = ItemSpec(ITEM_MATERIAL, CONTENT_STONE);
specs[2] = ItemSpec(ITEM_MATERIAL, CONTENT_STONE);
specs[4] = ItemSpec(ITEM_CRAFT, "Stick");
specs[7] = ItemSpec(ITEM_CRAFT, "Stick");
if(checkItemCombination(items, specs))
{
rlist->addItem(new ToolItem("STPick", 0));
found = true;
}
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}
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// Mese pick
if(!found)
{
ItemSpec specs[9];
specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_MESE);
specs[1] = ItemSpec(ITEM_MATERIAL, CONTENT_MESE);
specs[2] = ItemSpec(ITEM_MATERIAL, CONTENT_MESE);
specs[4] = ItemSpec(ITEM_CRAFT, "Stick");
specs[7] = ItemSpec(ITEM_CRAFT, "Stick");
if(checkItemCombination(items, specs))
{
rlist->addItem(new ToolItem("MesePick", 0));
found = true;
}
}
}
} // if creative_mode == false
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/*
Serialize it
*/
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std::ostringstream os;
//os.imbue(std::locale("C"));
player->inventory.serialize(os);
std::string s = os.str();
SharedBuffer<u8> data(s.size()+2);
writeU16(&data[0], TOCLIENT_INVENTORY);
memcpy(&data[2], s.c_str(), s.size());
// Send as reliable
m_con.Send(peer_id, 0, data, true);
}
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void Server::SendChatMessage(u16 peer_id, const std::wstring &message)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
u8 buf[12];
// Write command
writeU16(buf, TOCLIENT_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());
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// Send as reliable
m_con.Send(peer_id, 0, data, true);
}
void Server::BroadcastChatMessage(const std::wstring &message)
{
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
SendChatMessage(client->peer_id, message);
}
}
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void Server::SendBlocks(float dtime)
{
DSTACK(__FUNCTION_NAME);
JMutexAutoLock envlock(m_env_mutex);
core::array<PrioritySortedBlockTransfer> queue;
s32 total_sending = 0;
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
total_sending += client->SendingCount();
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
client->GetNextBlocks(this, dtime, queue);
}
// Sort.
// Lowest priority number comes first.
// Lowest is most important.
queue.sort();
JMutexAutoLock conlock(m_con_mutex);
for(u32 i=0; i<queue.size(); i++)
{
//TODO: Calculate limit dynamically
if(total_sending >= g_settings.getS32
("max_simultaneous_block_sends_server_total"))
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break;
PrioritySortedBlockTransfer q = queue[i];
MapBlock *block = NULL;
try
{
block = m_env.getMap().getBlockNoCreate(q.pos);
}
catch(InvalidPositionException &e)
{
continue;
}
RemoteClient *client = getClient(q.peer_id);
SendBlockNoLock(q.peer_id, block, client->serialization_version);
client->SentBlock(q.pos);
total_sending++;
}
}
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RemoteClient* Server::getClient(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
//JMutexAutoLock lock(m_con_mutex);
core::map<u16, RemoteClient*>::Node *n;
n = m_clients.find(peer_id);
// A client should exist for all peers
assert(n != NULL);
return n->getValue();
}
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void Server::UpdateBlockWaterPressure(MapBlock *block,
core::map<v3s16, MapBlock*> &modified_blocks)
{
MapVoxelManipulator v(&m_env.getMap());
v.m_disable_water_climb =
g_settings.getBool("disable_water_climb");
VoxelArea area(block->getPosRelative(),
block->getPosRelative() + v3s16(1,1,1)*(MAP_BLOCKSIZE-1));
try
{
v.updateAreaWaterPressure(area, m_flow_active_nodes);
}
catch(ProcessingLimitException &e)
{
dstream<<"Processing limit reached (1)"<<std::endl;
}
v.blitBack(modified_blocks);
}
void Server::handlePeerChange(PeerChange &c)
{
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
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if(c.type == PEER_ADDED)
{
/*
Add
*/
// Error check
core::map<u16, RemoteClient*>::Node *n;
n = m_clients.find(c.peer_id);
// The client shouldn't already exist
assert(n == NULL);
// Create client
RemoteClient *client = new RemoteClient();
client->peer_id = c.peer_id;
m_clients.insert(client->peer_id, client);
// Create player
{
Player *player = m_env.getPlayer(c.peer_id);
// The player shouldn't already exist
assert(player == NULL);
player = new ServerRemotePlayer();
player->peer_id = c.peer_id;
/*
Set player position
*/
// We're going to throw the player to this position
//v2s16 nodepos(29990,29990);
//v2s16 nodepos(9990,9990);
v2s16 nodepos(0,0);
v2s16 sectorpos = getNodeSectorPos(nodepos);
// Get zero sector (it could have been unloaded to disk)
m_env.getMap().emergeSector(sectorpos);
// Get ground height at origin
f32 groundheight = m_env.getMap().getGroundHeight(nodepos, true);
// The sector should have been generated -> groundheight exists
assert(groundheight > GROUNDHEIGHT_VALID_MINVALUE);
// Don't go underwater
if(groundheight < WATER_LEVEL)
groundheight = WATER_LEVEL;
player->setPosition(intToFloat(v3s16(
nodepos.X,
groundheight + 1,
nodepos.Y
)));
/*
Add player to environment
*/
m_env.addPlayer(player);
/*
Add stuff to inventory
*/
if(g_settings.getBool("creative_mode"))
{
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// Give some good picks
{
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InventoryItem *item = new ToolItem("STPick", 0);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
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{
InventoryItem *item = new ToolItem("MesePick", 0);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
/*
Give materials
*/
assert(USEFUL_CONTENT_COUNT <= PLAYER_INVENTORY_SIZE);
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// add torch first
InventoryItem *item = new MaterialItem(CONTENT_TORCH, 1);
player->inventory.addItem("main", item);
// Then others
for(u16 i=0; i<USEFUL_CONTENT_COUNT; i++)
{
// Skip some materials
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if(i == CONTENT_OCEAN || i == CONTENT_TORCH)
continue;
InventoryItem *item = new MaterialItem(i, 1);
player->inventory.addItem("main", item);
}
// Sign
{
InventoryItem *item = new MapBlockObjectItem("Sign Example text");
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
}
else
{
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/*{
InventoryItem *item = new MaterialItem(CONTENT_MESE, 6);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
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{
InventoryItem *item = new MaterialItem(CONTENT_COALSTONE, 6);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
{
InventoryItem *item = new MaterialItem(CONTENT_WOOD, 6);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
{
InventoryItem *item = new CraftItem("Stick", 4);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
{
InventoryItem *item = new ToolItem("WPick", 32000);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
}
{
InventoryItem *item = new ToolItem("STPick", 32000);
void* r = player->inventory.addItem("main", item);
assert(r == NULL);
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}*/
/*// Give some lights
{
InventoryItem *item = new MaterialItem(CONTENT_TORCH, 999);
bool r = player->inventory.addItem("main", item);
assert(r == true);
}
// and some signs
for(u16 i=0; i<4; i++)
{
InventoryItem *item = new MapBlockObjectItem("Sign Example text");
bool r = player->inventory.addItem("main", item);
assert(r == true);
}*/
/*// Give some other stuff
{
InventoryItem *item = new MaterialItem(CONTENT_TREE, 999);
bool r = player->inventory.addItem("main", item);
assert(r == true);
}*/
}
}
} // PEER_ADDED
else if(c.type == PEER_REMOVED)
{
/*
Delete
*/
// Error check
core::map<u16, RemoteClient*>::Node *n;
n = m_clients.find(c.peer_id);
// The client should exist
assert(n != NULL);
// Collect information about leaving in chat
std::wstring message;
{
std::wstring name = L"unknown";
Player *player = m_env.getPlayer(c.peer_id);
if(player != NULL)
name = narrow_to_wide(player->getName());
message += L"*** ";
message += name;
message += L" left game";
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if(c.timeout)
message += L" (timed out)";
}
// Delete player
{
m_env.removePlayer(c.peer_id);
}
// Delete client
delete m_clients[c.peer_id];
m_clients.remove(c.peer_id);
// Send player info to all remaining clients
SendPlayerInfos();
// Send leave chat message to all remaining clients
BroadcastChatMessage(message);
} // PEER_REMOVED
else
{
assert(0);
}
}
void Server::handlePeerChanges()
{
while(m_peer_change_queue.size() > 0)
{
PeerChange c = m_peer_change_queue.pop_front();
dout_server<<"Server: Handling peer change: "
<<"id="<<c.peer_id<<", timeout="<<c.timeout
<<std::endl;
handlePeerChange(c);
}
}
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