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path: root/src/mapgen/mg_ore.cpp
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/*
Minetest
Copyright (C) 2014-2018 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
Copyright (C) 2015-2018 paramat

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 "mg_ore.h"
#include "mapgen.h"
#include "noise.h"
#include "map.h"
#include "log.h"
#include "util/numeric.h"
#include <cmath>
#include <algorithm>


FlagDesc flagdesc_ore[] = {
	{"absheight",                 OREFLAG_ABSHEIGHT}, // Non-functional
	{"puff_cliffs",               OREFLAG_PUFF_CLIFFS},
	{"puff_additive_composition", OREFLAG_PUFF_ADDITIVE},
	{NULL,                        0}
};


///////////////////////////////////////////////////////////////////////////////


OreManager::OreManager(IGameDef *gamedef) :
	ObjDefManager(gamedef, OBJDEF_ORE)
{
}


size_t OreManager::placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
	size_t nplaced = 0;

	for (size_t i = 0; i != m_objects.size(); i++) {
		Ore *ore = (Ore *)m_objects[i];
		if (!ore)
			continue;

		nplaced += ore->placeOre(mg, blockseed, nmin, nmax);
		blockseed++;
	}

	return nplaced;
}


void OreManager::clear()
{
	for (ObjDef *object : m_objects) {
		Ore *ore = (Ore *) object;
		delete ore;
	}
	m_objects.clear();
}


///////////////////////////////////////////////////////////////////////////////


Ore::~Ore()
{
	delete noise;
}


void Ore::resolveNodeNames()
{
	getIdFromNrBacklog(&c_ore, "", CONTENT_AIR);
	getIdsFromNrBacklog(&c_wherein);
}


size_t Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
	if (nmin.Y > y_max || nmax.Y < y_min)
		return 0;

	int actual_ymin = MYMAX(nmin.Y, y_min);
	int actual_ymax = MYMIN(nmax.Y, y_max);
	if (clust_size >= actual_ymax - actual_ymin + 1)
		return 0;

	nmin.Y = actual_ymin;
	nmax.Y = actual_ymax;
	generate(mg->vm, mg->seed, blockseed, nmin, nmax, mg->biomemap);

	return 1;
}


///////////////////////////////////////////////////////////////////////////////


void OreScatter::generate(MMVManip *vm, int mapseed, u32 blockseed,
	v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
	PcgRandom pr(blockseed);
	MapNode n_ore(c_ore, 0, ore_param2);

	u32 sizex  = (nmax.X - nmin.X + 1);
	u32 volume = (nmax.X - nmin.X + 1) *
				 (nmax.Y - nmin.Y + 1) *
				 (nmax.Z - nmin.Z + 1);
	u32 csize     = clust_size;
	u32 cvolume    = csize * csize * csize;
	u32 nclusters = volume / clust_scarcity;

	for (u32 i = 0; i != nclusters; i++) {
		int x0 = pr.range(nmin.X, nmax.X - csize + 1);
		int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
		int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);

		if ((flags & OREFLAG_USE_NOISE) &&
			(NoisePerlin3D(&np, x0, y0, z0, mapseed) < nthresh))
			continue;

		if (biomemap && !biomes.empty()) {
			u32 index = sizex * (z0 - nmin.Z) + (x0 - nmin.X);
			std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
			if (it == biomes.end())
				continue;
		}

		for (u32 z1 = 0; z1 != csize; z1++)
		for (u32 y1 = 0; y1 != csize; y1++)
		for (u32 x1 = 0; x1 != csize; x1++) {
			if (pr.range(1, cvolume) > clust_num_ores)
				continue;

			u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
			if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
				continue;

			vm->m_data[i] = n_ore;
		}
	}
}


///////////////////////////////////////////////////////////////////////////////


void OreSheet::generate(MMVManip *vm, int mapseed, u32 blockseed,
	v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
	PcgRandom pr(blockseed + 4234);
	MapNode n_ore(c_ore, 0, ore_param2);

	u16 max_height = column_height_max;
	int y_start_min = nmin.Y + max_height;
	int y_start_max = nmax.Y - max_height;

	int y_start = y_start_min < y_start_max ?
		pr.range(y_start_min, y_start_max) :
		(y_start_min + y_start_max) / 2;

	if (!noise) {
		int sx = nmax.X - nmin.X + 1;
		int sz = nmax.Z - nmin.Z + 1;
		noise = new Noise(&np, 0, sx, sz);
	}
	noise->seed = mapseed + y_start;
	noise->perlinMap2D(nmin.X, nmin.Z);

	size_t index = 0;
	for (int z = nmin.Z; z <= nmax.Z; z++)
	for (int x = nmin.X; x <= nmax.X; x++, index++) {
		float noiseval = noise->result[index];
		if (noiseval < nthresh)
			continue;

		if (biomemap && !biomes.empty()) {
			std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
			if (it == biomes.end())
				continue;
		}

		u16 height = pr.range(column_height_min, column_height_max);
		int ymidpoint = y_start + noiseval;
		int y0 = MYMAX(nmin.Y, ymidpoint - height * (1 - column_midpoint_factor));
		int y1 = MYMIN(nmax.Y, y0 + height - 1);

		for (int y = y0; y <= y1; y++) {
			u32 i = vm->m_area.index(x, y, z);
			if (!vm->m_area.contains(i))
				continue;
			if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
				continue;

			vm->m_data[i] = n_ore;
		}
	}
}


///////////////////////////////////////////////////////////////////////////////


OrePuff::~OrePuff()
{
	delete noise_puff_top;
	delete noise_puff_bottom;
}


void OrePuff::generate(MMVManip *vm, int mapseed, u32 blockseed,
	v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
	PcgRandom pr(blockseed + 4234);
	MapNode n_ore(c_ore, 0, ore_param2);

	int y_start = pr.range(nmin.Y, nmax.Y);

	if (!noise) {
		int sx = nmax.X - nmin.X + 1;
		int sz = nmax.Z - nmin.Z + 1;
		noise = new Noise(&np, 0, sx, sz);
		noise_puff_top = new Noise(&np_puff_top, 0, sx, sz);
		noise_puff_bottom = new Noise(&np_puff_bottom, 0, sx, sz);
	}

	noise->seed = mapseed + y_start;
	noise->perlinMap2D(nmin.X, nmin.Z);
	bool noise_generated = false;

	size_t index = 0;
	for (int z = nmin.Z; z <= nmax.Z; z++)
	for (int x = nmin.X; x <= nmax.X; x++, index++) {
		float noiseval = noise->result[index];
		if (noiseval < nthresh)
			continue;

		if (biomemap && !biomes.empty()) {
			std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
			if (it == biomes.end())
				continue;
		}

		if (!noise_generated) {
			noise_generated = true;
			noise_puff_top->perlinMap2D(nmin.X, nmin.Z);
			noise_puff_bottom->perlinMap2D(nmin.X, nmin.Z);
		}

		float ntop    = noise_puff_top->result[index];
		float nbottom = noise_puff_bottom->result[index];

		if (!(flags & OREFLAG_PUFF_CLIFFS)) {
			float ndiff = noiseval - nthresh;
			if (ndiff < 1.0f) {
				ntop *= ndiff;
				nbottom *= ndiff;
			}
		}

		int ymid = y_start;
		int y0 = ymid - nbottom;
		int y1 = ymid + ntop;

		if ((flags & OREFLAG_PUFF_ADDITIVE) && (y0 > y1))
			SWAP(int, y0, y1);

		for (int y = y0; y <= y1; y++) {
			u32 i = vm->m_area.index(x, y, z);
			if (!vm->m_area.contains(i))
				continue;
			if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
				continue;

			vm->m_data[i] = n_ore;
		}
	}
}


///////////////////////////////////////////////////////////////////////////////


void OreBlob::generate(MMVManip *vm, int mapseed, u32 blockseed,
	v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
	PcgRandom pr(blockseed + 2404);
	MapNode n_ore(c_ore, 0, ore_param2);

	u32 sizex  = (nmax.X - nmin.X + 1);
	u32 volume = (nmax.X - nmin.X + 1) *
				 (nmax.Y - nmin.Y + 1) *
				 (nmax.Z - nmin.Z + 1);
	u32 csize  = clust_size;
	u32 nblobs = volume / clust_scarcity;

	if (!noise)
		noise = new Noise(&np, mapseed, csize, csize, csize);

	for (u32 i = 0; i != nblobs; i++) {
		int x0 = pr.range(nmin.X, nmax.X - csize + 1);
		int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
		int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);

		if (biomemap && !biomes.empty()) {
			u32 bmapidx = sizex * (z0 - nmin.Z) + (x0 - nmin.X);
			std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[bmapidx]);
			if (it == biomes.end())
				continue;
		}

		bool noise_generated = false;
		noise->seed = blockseed + i;

		size_t index = 0;
		for (u32 z1 = 0; z1 != csize; z1++)
		for (u32 y1 = 0; y1 != csize; y1++)
		for (u32 x1 = 0; x1 != csize; x1++, index++) {
			u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
			if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
				continue;

			// Lazily generate noise only if there's a chance of ore being placed
			// This simple optimization makes calls 6x faster on average
			if (!noise_generated) {
				noise_generated = true;
				noise->perlinMap3D(x0, y0, z0);
			}

			float noiseval = noise->result[index];

			float xdist = (s32)x1 - (s32)csize / 2;
			float ydist = (s32)y1 - (s32)csize / 2;
			float zdist = (s32)z1 - (s32)csize / 2;

			noiseval -= std::sqrt(xdist * xdist + ydist * ydist + zdist * zdist) / csize;

			if (noiseval < nthresh)
				continue;

			vm->m_data[i] = n_ore;
		}
	}
}


///////////////////////////////////////////////////////////////////////////////


OreVein::~OreVein()
{
	delete noise2;
}


void OreVein::generate(MMVManip *vm, int mapseed, u32 blockseed,
	v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
	PcgRandom pr(blockseed + 520);
	MapNode n_ore(c_ore, 0, ore_param2);

	int sizex = nmax.X - nmin.X + 1;
	int sizey = nmax.Y - nmin.Y + 1;
	// Because this ore uses 3D noise the perlinmap Y size can be different in
	// different mapchunks due to ore Y limits. So recreate the noise objects
	// if Y size has changed.
	// Because these noise objects are created multiple times for this ore type
	// it is necessary to 'delete' them here.
	if (!noise || sizey != sizey_prev) {
		delete noise;
		delete noise2;
		int sizez = nmax.Z - nmin.Z + 1;
		noise  = new Noise(&np, mapseed, sizex, sizey, sizez);
		noise2 = new Noise(&np, mapseed + 436, sizex, sizey, sizez);
		sizey_prev = sizey;
	}

	bool noise_generated = false;
	size_t index = 0;
	for (int z = nmin.Z; z <= nmax.Z; z++)
	for (int y = nmin.Y; y <= nmax.Y; y++)
	for (int x = nmin.X; x <= nmax.X; x++, index++) {
		u32 i = vm->m_area.index(x, y, z);
		if (!vm->m_area.contains(i))
			continue;
		if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
			continue;

		if (biomemap && !biomes.empty()) {
			u32 bmapidx = sizex * (z - nmin.Z) + (x - nmin.X);
			std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[bmapidx]);
			if (it == biomes.end())
				continue;
		}

		// Same lazy generation optimization as in OreBlob
		if (!noise_generated) {
			noise_generated = true;
			noise->perlinMap3D(nmin.X, nmin.Y, nmin.Z);
			noise2->perlinMap3D(nmin.X, nmin.Y, nmin.Z);
		}

		// randval ranges from -1..1
		float randval   = (float)pr.next() / (pr.RANDOM_RANGE / 2) - 1.f;
		float noiseval  = contour(noise->result[index]);
		float noiseval2 = contour(noise2->result[index]);
		if (noiseval * noiseval2 + randval * random_factor < nthresh)
			continue;

		vm->m_data[i] = n_ore;
	}
}


///////////////////////////////////////////////////////////////////////////////


OreStratum::~OreStratum()
{
	delete noise_stratum_thickness;
}


void OreStratum::generate(MMVManip *vm, int mapseed, u32 blockseed,
	v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
	PcgRandom pr(blockseed + 4234);
	MapNode n_ore(c_ore, 0, ore_param2);

	if (flags & OREFLAG_USE_NOISE) {
		if (!noise) {
			int sx = nmax.X - nmin.X + 1;
			int sz = nmax.Z - nmin.Z + 1;
			noise = new Noise(&np, 0, sx, sz);
		}
		noise->perlinMap2D(nmin.X, nmin.Z);
	}

	if (flags & OREFLAG_USE_NOISE2) {
		if (!noise_stratum_thickness) {
			int sx = nmax.X - nmin.X + 1;
			int sz = nmax.Z - nmin.Z + 1;
			noise_stratum_thickness = new Noise(&np_stratum_thickness, 0, sx, sz);
		}
		noise_stratum_thickness->perlinMap2D(nmin.X, nmin.Z);
	}

	size_t index = 0;

	for (int z = nmin.Z; z <= nmax.Z; z++)
	for (int x = nmin.X; x <= nmax.X; x++, index++) {
		if (biomemap && !biomes.empty()) {
			std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
			if (it == biomes.end())
				continue;
		}

		int y0;
		int y1;

		if (flags & OREFLAG_USE_NOISE) {
			float nhalfthick = ((flags & OREFLAG_USE_NOISE2) ?
				noise_stratum_thickness->result[index] : (float)stratum_thickness) /
				2.0f;
			float nmid = noise->result[index];
			y0 = MYMAX(nmin.Y, std::ceil(nmid - nhalfthick));
			y1 = MYMIN(nmax.Y, nmid + nhalfthick);
		} else { // Simple horizontal stratum
			y0 = nmin.Y;
			y1 = nmax.Y;
		}

		for (int y = y0; y <= y1; y++) {
			if (pr.range(1, clust_scarcity) != 1)
				continue;

			u32 i = vm->m_area.index(x, y, z);
			if (!vm->m_area.contains(i))
				continue;
			if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
				continue;

			vm->m_data[i] = n_ore;
		}
	}
}
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/*
Minetest
Copyright (C) 2013 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 <algorithm>
#include "clientserver.h"
#include "jthread/jmutexautolock.h"
#include "main.h"
#include <sstream>
#include "filesys.h"
#include "porting.h"
#include "mapsector.h"
#include "mapblock_mesh.h"
#include "mapblock.h"
#include "settings.h"
#include "profiler.h"
#include "gettext.h"
#include "log.h"
#include "nodemetadata.h"
#include "nodedef.h"
#include "itemdef.h"
#include "shader.h"
#include <IFileSystem.h>
#include "base64.h"
#include "clientmap.h"
#include "clientmedia.h"
#include "sound.h"
#include "util/string.h"
#include "IMeshCache.h"
#include "serialization.h"
#include "util/serialize.h"
#include "config.h"
#include "util/directiontables.h"
#include "util/pointedthing.h"
#include "version.h"

/*
	QueuedMeshUpdate
*/

QueuedMeshUpdate::QueuedMeshUpdate():
	p(-1337,-1337,-1337),
	data(NULL),
	ack_block_to_server(false)
{
}

QueuedMeshUpdate::~QueuedMeshUpdate()
{
	if(data)
		delete data;
}

/*
	MeshUpdateQueue
*/
	
MeshUpdateQueue::MeshUpdateQueue()
{
}

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(!StopRequested())
	{
		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;

		m_queue_out.push_back(r);

		delete q;
	}

	END_DEBUG_EXCEPTION_HANDLER(errorstream)

	return NULL;
}

/*
	Client
*/

Client::Client(
		IrrlichtDevice *device,
		const char *playername,
		std::string password,
		MapDrawControl &control,
		IWritableTextureSource *tsrc,
		IWritableShaderSource *shsrc,
		IWritableItemDefManager *itemdef,
		IWritableNodeDefManager *nodedef,
		ISoundManager *sound,
		MtEventManager *event,
		bool ipv6
):
	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, ipv6, 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_itemdef_received(false),
	m_nodedef_received(false),
	m_media_downloader(new ClientMediaDownloader()),
	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;

	/*
		Add local player
	*/
	{
		Player *player = new LocalPlayer(this);

		player->updateName(playername);

		m_env.addPlayer(player);
	}
}

void Client::Stop()
{
	//request all client managed threads to stop
	m_mesh_update_thread.Stop();
}

bool Client::isShutdown()
{

	if (!m_mesh_update_thread.IsRunning()) return true;

	return false;
}

Client::~Client()
{
	m_con.Disconnect();

	m_mesh_update_thread.Stop();
	m_mesh_update_thread.Wait();
	while(!m_mesh_update_thread.m_queue_out.empty()) {
		MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
		delete r.mesh;
	}


	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;
	}

	// cleanup 3d model meshes on client shutdown
	while (m_device->getSceneManager()->getMeshCache()->getMeshCount() != 0) {
		scene::IAnimatedMesh * mesh =
			m_device->getSceneManager()->getMeshCache()->getMeshByIndex(0);

		if (mesh != NULL)
			m_device->getSceneManager()->getMeshCache()->removeMesh(mesh);
	}
}

void Client::connect(Address address)
{
	DSTACK(__FUNCTION_NAME);
	m_con.SetTimeoutMs(0);
	m_con.Connect(address);
}

bool Client::connectedAndInitialized()
{
	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;

	ReceiveAll();

	/*
		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_READ
			// [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_READ);

			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(1, 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");
		std::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.
		*/

		std::list<v3s16>::iterator i = deleted_blocks.begin();
		std::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(std::list<v3s16>::iterator
						j = sendlist.begin();
						j != sendlist.end(); ++j)
				{
					writeV3S16(&reply[2+1+6*k], *j);
					k++;
				}
				m_con.Send(PEER_ID_SERVER, 2, reply, true);

				if(i == deleted_blocks.end())
					break;

				sendlist.clear();
			}

			sendlist.push_back(*i);
			++i;
		}
	}

	/*
		Handle environment
	*/
	{
		// Control local player (0ms)
		LocalPlayer *player = m_env.getLocalPlayer();
		assert(player != NULL);
		player->applyControl(dtime);

		// 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);
				}
			}
			else if(event.type == CEE_PLAYER_BREATH)
			{
					u16 breath = event.player_breath.amount;
					sendBreath(breath);
			}
		}
	}

	/*
		Print some info
	*/
	{
		float &counter = m_avg_rtt_timer;
		counter += dtime;
		if(counter >= 10)
		{
			counter = 0.0;
			// 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
	*/
	{
		int num_processed_meshes = 0;
		while(!m_mesh_update_thread.m_queue_out.empty())
		{
			num_processed_meshes++;
			MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
			MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
			if(block)
			{
				// 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;
			} else {
				delete r.mesh;
			}
			if(r.ack_block_to_server)
			{
				/*
					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, 2, reply, true);
			}
		}
		if(num_processed_meshes > 0)
			g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
	}

	/*
		Load fetched media
	*/
	if (m_media_downloader && m_media_downloader->isStarted()) {
		m_media_downloader->step(this);
		if (m_media_downloader->isDone()) {
			received_media();
			delete m_media_downloader;
			m_media_downloader = NULL;
		}
	}

	/*
		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);
			size_t server_ids = removed_server_ids.size();
			assert(server_ids <= 0xFFFF);
			writeU16(os, (u16) (server_ids & 0xFFFF));
			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(1, 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 memory: "
				<<"\""<<filename<<"\""<<std::endl;
		if(m_mesh_data.count(filename))
			errorstream<<"Multiple models with name \""<<filename.c_str()
					<<"\" found; replacing previous model"<<std::endl;
		m_mesh_data[filename] = data;
		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 std::list<std::string> &file_requests)
{
	std::ostringstream os(std::ios_base::binary);
	writeU16(os, TOSERVER_REQUEST_MEDIA);
	size_t file_requests_size = file_requests.size();
	assert(file_requests_size <= 0xFFFF);
	writeU16(os, (u16) (file_requests_size & 0xFFFF));

	for(std::list<std::string>::const_iterator i = file_requests.begin();
			i != file_requests.end(); ++i) {
		os<<serializeString(*i);
	}

	// Make data buffer
	std::string s = os.str();
	SharedBuffer<u8> data((u8*)s.c_str(), s.size());
	// Send as reliable
	Send(1, data, true);
	infostream<<"Client: Sending media request list to server ("
			<<file_requests.size()<<" files)"<<std::endl;
}

void Client::received_media()
{
	// 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(1, data, true);
	infostream<<"Client: Notifying server that we received all media"
			<<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 = m_con.Receive(sender_peer_id, data);
	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;

	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(!ser_ver_supported(deployed))
		{
			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);

			
		// 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;
	}
	
	/*
	  Handle runtime commands
	*/
	// there's no sane reason why we shouldn't have a player and
	// almost everyone needs a player reference
	Player *player = m_env.getLocalPlayer();
	assert(player != NULL);

	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]);
		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]);

		MapNode n;
		n.deSerialize(&data[8], ser_version);
		
		bool remove_metadata = true;
		u32 index = 8 + MapNode::serializedLength(ser_version);
		if ((datasize >= index+1) && data[index]){
			remove_metadata = false;
		}
		
		addNode(p, n, remove_metadata);
	}
	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]);
		
		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);
		
		block = sector->getBlockNoCreateNoEx(p.Y);
		if(block)
		{
			/*
				Update an existing block
			*/
			block->deSerialize(istr, ser_version, false);
			block->deSerializeNetworkSpecific(istr);
		}
		else
		{
			/*
				Create a new block
			*/
			block = new MapBlock(&m_env.getMap(), p, this);
			block->deSerialize(istr, ser_version, false);
			block->deSerializeNetworkSpecific(istr);
			sector->insertBlock(block);
		}

		/*
			Add it to mesh update queue and set it to be acknowledged after update.
		*/
		addUpdateMeshTaskWithEdge(p, true);
	}
	else if(command == TOCLIENT_INVENTORY)
	{
		if(datasize < 3)
			return;

		std::string datastring((char*)&data[2], datasize-2);
		std::istringstream is(datastring, std::ios_base::binary);

		player->inventory.deSerialize(is);

		m_inventory_updated = true;

		delete m_inventory_from_server;
		m_inventory_from_server = new Inventory(player->inventory);
		m_inventory_from_server_age = 0.0;

	}
	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;
		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(unsigned int i=0; i<len; i++)
		{
			is.read((char*)buf, 2);
			message += (wchar_t)readU16(buf);
		}
		
		m_chat_queue.push_back(message);
	}
	else if(command == TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD)
	{
		/*
			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 removed objects
		is.read(buf, 2);
		u16 removed_count = readU16((u8*)buf);
		for(unsigned int i=0; i<removed_count; i++)
		{
			is.read(buf, 2);
			u16 id = readU16((u8*)buf);
			m_env.removeActiveObject(id);
		}

		// Read added objects
		is.read(buf, 2);
		u16 added_count = readU16((u8*)buf);
		for(unsigned int 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
			m_env.addActiveObject(id, type, data);
		}
	}
	else if(command == TOCLIENT_ACTIVE_OBJECT_MESSAGES)
	{
		/*
			u16 command
			for all objects
			{
				u16 id
				u16 message length
				string message
			}
		*/
		char buf[6];
		// Get all data except the command number