mirror of
https://github.com/moparisthebest/minetest
synced 2024-11-10 11:25:07 -05:00
580 lines
16 KiB
C++
580 lines
16 KiB
C++
/*
|
|
Minetest
|
|
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
|
|
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
|
|
|
|
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 "emerge.h"
|
|
#include "server.h"
|
|
#include <iostream>
|
|
#include <queue>
|
|
#include "map.h"
|
|
#include "environment.h"
|
|
#include "util/container.h"
|
|
#include "util/thread.h"
|
|
#include "main.h"
|
|
#include "constants.h"
|
|
#include "voxel.h"
|
|
#include "config.h"
|
|
#include "mapblock.h"
|
|
#include "serverobject.h"
|
|
#include "settings.h"
|
|
#include "scripting_game.h"
|
|
#include "profiler.h"
|
|
#include "log.h"
|
|
#include "nodedef.h"
|
|
#include "biome.h"
|
|
#include "mapgen_v6.h"
|
|
#include "mapgen_v7.h"
|
|
#include "mapgen_indev.h"
|
|
#include "mapgen_singlenode.h"
|
|
#include "mapgen_math.h"
|
|
|
|
|
|
class EmergeThread : public SimpleThread
|
|
{
|
|
public:
|
|
Server *m_server;
|
|
ServerMap *map;
|
|
EmergeManager *emerge;
|
|
Mapgen *mapgen;
|
|
bool enable_mapgen_debug_info;
|
|
int id;
|
|
|
|
Event qevent;
|
|
std::queue<v3s16> blockqueue;
|
|
|
|
EmergeThread(Server *server, int ethreadid):
|
|
SimpleThread(),
|
|
m_server(server),
|
|
map(NULL),
|
|
emerge(NULL),
|
|
mapgen(NULL),
|
|
id(ethreadid)
|
|
{
|
|
}
|
|
|
|
void *Thread();
|
|
|
|
void trigger()
|
|
{
|
|
setRun(true);
|
|
if(IsRunning() == false)
|
|
{
|
|
Start();
|
|
}
|
|
}
|
|
|
|
bool popBlockEmerge(v3s16 *pos, u8 *flags);
|
|
bool getBlockOrStartGen(v3s16 p, MapBlock **b,
|
|
BlockMakeData *data, bool allow_generate);
|
|
};
|
|
|
|
|
|
/////////////////////////////// Emerge Manager ////////////////////////////////
|
|
|
|
EmergeManager::EmergeManager(IGameDef *gamedef) {
|
|
//register built-in mapgens
|
|
registerMapgen("v6", new MapgenFactoryV6());
|
|
registerMapgen("v7", new MapgenFactoryV7());
|
|
registerMapgen("indev", new MapgenFactoryIndev());
|
|
registerMapgen("singlenode", new MapgenFactorySinglenode());
|
|
registerMapgen("math", new MapgenFactoryMath());
|
|
|
|
this->ndef = gamedef->getNodeDefManager();
|
|
this->biomedef = new BiomeDefManager();
|
|
this->params = NULL;
|
|
|
|
this->luaoverride_params = NULL;
|
|
this->luaoverride_params_modified = 0;
|
|
this->luaoverride_flagmask = 0;
|
|
|
|
mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
|
|
|
|
queuemutex.Init();
|
|
|
|
int nthreads;
|
|
if (g_settings->get("num_emerge_threads").empty()) {
|
|
int nprocs = porting::getNumberOfProcessors();
|
|
// leave a proc for the main thread and one for some other misc threads
|
|
nthreads = (nprocs > 2) ? nprocs - 2 : 1;
|
|
} else {
|
|
nthreads = g_settings->getU16("num_emerge_threads");
|
|
}
|
|
if (nthreads < 1)
|
|
nthreads = 1;
|
|
|
|
qlimit_total = g_settings->getU16("emergequeue_limit_total");
|
|
qlimit_diskonly = g_settings->get("emergequeue_limit_diskonly").empty() ?
|
|
nthreads * 5 + 1 :
|
|
g_settings->getU16("emergequeue_limit_diskonly");
|
|
qlimit_generate = g_settings->get("emergequeue_limit_generate").empty() ?
|
|
nthreads + 1 :
|
|
g_settings->getU16("emergequeue_limit_generate");
|
|
|
|
for (int i = 0; i != nthreads; i++)
|
|
emergethread.push_back(new EmergeThread((Server *)gamedef, i));
|
|
|
|
infostream << "EmergeManager: using " << nthreads << " threads" << std::endl;
|
|
}
|
|
|
|
|
|
EmergeManager::~EmergeManager() {
|
|
for (unsigned int i = 0; i != emergethread.size(); i++) {
|
|
emergethread[i]->setRun(false);
|
|
emergethread[i]->qevent.signal();
|
|
emergethread[i]->stop();
|
|
delete emergethread[i];
|
|
delete mapgen[i];
|
|
}
|
|
emergethread.clear();
|
|
mapgen.clear();
|
|
|
|
for (unsigned int i = 0; i < ores.size(); i++)
|
|
delete ores[i];
|
|
ores.clear();
|
|
|
|
for (unsigned int i = 0; i < decorations.size(); i++)
|
|
delete decorations[i];
|
|
decorations.clear();
|
|
|
|
for (std::map<std::string, MapgenFactory *>::iterator iter = mglist.begin();
|
|
iter != mglist.end(); iter ++) {
|
|
delete iter->second;
|
|
}
|
|
mglist.clear();
|
|
|
|
delete biomedef;
|
|
}
|
|
|
|
|
|
void EmergeManager::initMapgens(MapgenParams *mgparams) {
|
|
Mapgen *mg;
|
|
|
|
if (mapgen.size())
|
|
return;
|
|
|
|
// Resolve names of nodes for things that were registered
|
|
// (at this point, the registration period is over)
|
|
biomedef->resolveNodeNames(ndef);
|
|
|
|
for (size_t i = 0; i != ores.size(); i++)
|
|
ores[i]->resolveNodeNames(ndef);
|
|
|
|
for (size_t i = 0; i != decorations.size(); i++)
|
|
decorations[i]->resolveNodeNames(ndef);
|
|
|
|
// Apply mapgen parameter overrides from Lua
|
|
if (luaoverride_params) {
|
|
if (luaoverride_params_modified & MGPARAMS_SET_MGNAME)
|
|
mgparams->mg_name = luaoverride_params->mg_name;
|
|
|
|
if (luaoverride_params_modified & MGPARAMS_SET_SEED)
|
|
mgparams->seed = luaoverride_params->seed;
|
|
|
|
if (luaoverride_params_modified & MGPARAMS_SET_WATER_LEVEL)
|
|
mgparams->water_level = luaoverride_params->water_level;
|
|
|
|
if (luaoverride_params_modified & MGPARAMS_SET_FLAGS) {
|
|
mgparams->flags &= ~luaoverride_flagmask;
|
|
mgparams->flags |= luaoverride_params->flags;
|
|
}
|
|
|
|
delete luaoverride_params;
|
|
luaoverride_params = NULL;
|
|
}
|
|
|
|
// Create the mapgens
|
|
this->params = mgparams;
|
|
for (size_t i = 0; i != emergethread.size(); i++) {
|
|
mg = createMapgen(params->mg_name, 0, params);
|
|
if (!mg) {
|
|
infostream << "EmergeManager: falling back to mapgen v6" << std::endl;
|
|
delete params;
|
|
params = createMapgenParams("v6");
|
|
mg = createMapgen("v6", 0, params);
|
|
}
|
|
mapgen.push_back(mg);
|
|
}
|
|
}
|
|
|
|
|
|
Mapgen *EmergeManager::getCurrentMapgen() {
|
|
for (unsigned int i = 0; i != emergethread.size(); i++) {
|
|
if (emergethread[i]->IsSameThread())
|
|
return emergethread[i]->mapgen;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
void EmergeManager::triggerAllThreads() {
|
|
for (unsigned int i = 0; i != emergethread.size(); i++)
|
|
emergethread[i]->trigger();
|
|
}
|
|
|
|
bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate) {
|
|
std::map<v3s16, BlockEmergeData *>::const_iterator iter;
|
|
BlockEmergeData *bedata;
|
|
u16 count;
|
|
u8 flags = 0;
|
|
int idx = 0;
|
|
|
|
if (allow_generate)
|
|
flags |= BLOCK_EMERGE_ALLOWGEN;
|
|
|
|
{
|
|
JMutexAutoLock queuelock(queuemutex);
|
|
|
|
count = blocks_enqueued.size();
|
|
if (count >= qlimit_total)
|
|
return false;
|
|
|
|
count = peer_queue_count[peer_id];
|
|
u16 qlimit_peer = allow_generate ? qlimit_generate : qlimit_diskonly;
|
|
if (count >= qlimit_peer)
|
|
return false;
|
|
|
|
iter = blocks_enqueued.find(p);
|
|
if (iter != blocks_enqueued.end()) {
|
|
bedata = iter->second;
|
|
bedata->flags |= flags;
|
|
return true;
|
|
}
|
|
|
|
bedata = new BlockEmergeData;
|
|
bedata->flags = flags;
|
|
bedata->peer_requested = peer_id;
|
|
blocks_enqueued.insert(std::make_pair(p, bedata));
|
|
|
|
peer_queue_count[peer_id] = count + 1;
|
|
|
|
// insert into the EmergeThread queue with the least items
|
|
int lowestitems = emergethread[0]->blockqueue.size();
|
|
for (unsigned int i = 1; i != emergethread.size(); i++) {
|
|
int nitems = emergethread[i]->blockqueue.size();
|
|
if (nitems < lowestitems) {
|
|
idx = i;
|
|
lowestitems = nitems;
|
|
}
|
|
}
|
|
|
|
emergethread[idx]->blockqueue.push(p);
|
|
}
|
|
emergethread[idx]->qevent.signal();
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
int EmergeManager::getGroundLevelAtPoint(v2s16 p) {
|
|
if (mapgen.size() == 0 || !mapgen[0]) {
|
|
errorstream << "EmergeManager: getGroundLevelAtPoint() called"
|
|
" before mapgen initialized" << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
return mapgen[0]->getGroundLevelAtPoint(p);
|
|
}
|
|
|
|
|
|
bool EmergeManager::isBlockUnderground(v3s16 blockpos) {
|
|
/*
|
|
v2s16 p = v2s16((blockpos.X * MAP_BLOCKSIZE) + MAP_BLOCKSIZE / 2,
|
|
(blockpos.Y * MAP_BLOCKSIZE) + MAP_BLOCKSIZE / 2);
|
|
int ground_level = getGroundLevelAtPoint(p);
|
|
return blockpos.Y * (MAP_BLOCKSIZE + 1) <= min(water_level, ground_level);
|
|
*/
|
|
|
|
//yuck, but then again, should i bother being accurate?
|
|
//the height of the nodes in a single block is quite variable
|
|
return blockpos.Y * (MAP_BLOCKSIZE + 1) <= params->water_level;
|
|
}
|
|
|
|
|
|
u32 EmergeManager::getBlockSeed(v3s16 p) {
|
|
return (u32)(params->seed & 0xFFFFFFFF) +
|
|
p.Z * 38134234 +
|
|
p.Y * 42123 +
|
|
p.X * 23;
|
|
}
|
|
|
|
|
|
Mapgen *EmergeManager::createMapgen(std::string mgname, int mgid,
|
|
MapgenParams *mgparams) {
|
|
std::map<std::string, MapgenFactory *>::const_iterator iter;
|
|
iter = mglist.find(mgname);
|
|
if (iter == mglist.end()) {
|
|
errorstream << "EmergeManager; mapgen " << mgname <<
|
|
" not registered" << std::endl;
|
|
return NULL;
|
|
}
|
|
|
|
MapgenFactory *mgfactory = iter->second;
|
|
return mgfactory->createMapgen(mgid, mgparams, this);
|
|
}
|
|
|
|
|
|
MapgenParams *EmergeManager::createMapgenParams(std::string mgname) {
|
|
std::map<std::string, MapgenFactory *>::const_iterator iter;
|
|
iter = mglist.find(mgname);
|
|
if (iter == mglist.end()) {
|
|
errorstream << "EmergeManager: mapgen " << mgname <<
|
|
" not registered" << std::endl;
|
|
return NULL;
|
|
}
|
|
|
|
MapgenFactory *mgfactory = iter->second;
|
|
return mgfactory->createMapgenParams();
|
|
}
|
|
|
|
|
|
MapgenParams *EmergeManager::getParamsFromSettings(Settings *settings) {
|
|
std::string mg_name = settings->get("mg_name");
|
|
MapgenParams *mgparams = createMapgenParams(mg_name);
|
|
if (!mgparams)
|
|
return NULL;
|
|
|
|
mgparams->mg_name = mg_name;
|
|
mgparams->seed = settings->getU64(settings == g_settings ? "fixed_map_seed" : "seed");
|
|
mgparams->water_level = settings->getS16("water_level");
|
|
mgparams->chunksize = settings->getS16("chunksize");
|
|
mgparams->flags = settings->getFlagStr("mg_flags", flagdesc_mapgen);
|
|
|
|
if (!mgparams->readParams(settings)) {
|
|
delete mgparams;
|
|
return NULL;
|
|
}
|
|
return mgparams;
|
|
}
|
|
|
|
|
|
void EmergeManager::setParamsToSettings(Settings *settings) {
|
|
settings->set("mg_name", params->mg_name);
|
|
settings->setU64("seed", params->seed);
|
|
settings->setS16("water_level", params->water_level);
|
|
settings->setS16("chunksize", params->chunksize);
|
|
settings->setFlagStr("mg_flags", params->flags, flagdesc_mapgen);
|
|
|
|
params->writeParams(settings);
|
|
}
|
|
|
|
|
|
void EmergeManager::registerMapgen(std::string mgname, MapgenFactory *mgfactory) {
|
|
mglist.insert(std::make_pair(mgname, mgfactory));
|
|
infostream << "EmergeManager: registered mapgen " << mgname << std::endl;
|
|
}
|
|
|
|
|
|
////////////////////////////// Emerge Thread //////////////////////////////////
|
|
|
|
bool EmergeThread::popBlockEmerge(v3s16 *pos, u8 *flags) {
|
|
std::map<v3s16, BlockEmergeData *>::iterator iter;
|
|
JMutexAutoLock queuelock(emerge->queuemutex);
|
|
|
|
if (blockqueue.empty())
|
|
return false;
|
|
v3s16 p = blockqueue.front();
|
|
blockqueue.pop();
|
|
|
|
*pos = p;
|
|
|
|
iter = emerge->blocks_enqueued.find(p);
|
|
if (iter == emerge->blocks_enqueued.end())
|
|
return false; //uh oh, queue and map out of sync!!
|
|
|
|
BlockEmergeData *bedata = iter->second;
|
|
*flags = bedata->flags;
|
|
|
|
emerge->peer_queue_count[bedata->peer_requested]--;
|
|
|
|
delete bedata;
|
|
emerge->blocks_enqueued.erase(iter);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool EmergeThread::getBlockOrStartGen(v3s16 p, MapBlock **b,
|
|
BlockMakeData *data, bool allow_gen) {
|
|
v2s16 p2d(p.X, p.Z);
|
|
//envlock: usually takes <=1ms, sometimes 90ms or ~400ms to acquire
|
|
JMutexAutoLock envlock(m_server->m_env_mutex);
|
|
|
|
// Load sector if it isn't loaded
|
|
if (map->getSectorNoGenerateNoEx(p2d) == NULL)
|
|
map->loadSectorMeta(p2d);
|
|
|
|
// Attempt to load block
|
|
MapBlock *block = map->getBlockNoCreateNoEx(p);
|
|
if (!block || block->isDummy() || !block->isGenerated()) {
|
|
EMERGE_DBG_OUT("not in memory, attempting to load from disk");
|
|
block = map->loadBlock(p);
|
|
}
|
|
|
|
// If could not load and allowed to generate,
|
|
// start generation inside this same envlock
|
|
if (allow_gen && (block == NULL || !block->isGenerated())) {
|
|
EMERGE_DBG_OUT("generating");
|
|
*b = block;
|
|
return map->initBlockMake(data, p);
|
|
}
|
|
|
|
*b = block;
|
|
return false;
|
|
}
|
|
|
|
|
|
void *EmergeThread::Thread() {
|
|
ThreadStarted();
|
|
log_register_thread("EmergeThread" + itos(id));
|
|
DSTACK(__FUNCTION_NAME);
|
|
BEGIN_DEBUG_EXCEPTION_HANDLER
|
|
|
|
v3s16 last_tried_pos(-32768,-32768,-32768); // For error output
|
|
v3s16 p;
|
|
u8 flags;
|
|
|
|
map = (ServerMap *)&(m_server->m_env->getMap());
|
|
emerge = m_server->m_emerge;
|
|
mapgen = emerge->mapgen[id];
|
|
enable_mapgen_debug_info = emerge->mapgen_debug_info;
|
|
|
|
while (getRun())
|
|
try {
|
|
if (!popBlockEmerge(&p, &flags)) {
|
|
qevent.wait();
|
|
continue;
|
|
}
|
|
|
|
last_tried_pos = p;
|
|
if (blockpos_over_limit(p))
|
|
continue;
|
|
|
|
bool allow_generate = flags & BLOCK_EMERGE_ALLOWGEN;
|
|
EMERGE_DBG_OUT("p=" PP(p) " allow_generate=" << allow_generate);
|
|
|
|
/*
|
|
Try to fetch block from memory or disk.
|
|
If not found and asked to generate, initialize generator.
|
|
*/
|
|
BlockMakeData data;
|
|
MapBlock *block = NULL;
|
|
std::map<v3s16, MapBlock *> modified_blocks;
|
|
|
|
if (getBlockOrStartGen(p, &block, &data, allow_generate)) {
|
|
{
|
|
ScopeProfiler sp(g_profiler, "EmergeThread: Mapgen::makeChunk", SPT_AVG);
|
|
TimeTaker t("mapgen::make_block()");
|
|
|
|
mapgen->makeChunk(&data);
|
|
|
|
if (enable_mapgen_debug_info == false)
|
|
t.stop(true); // Hide output
|
|
}
|
|
|
|
{
|
|
//envlock: usually 0ms, but can take either 30 or 400ms to acquire
|
|
JMutexAutoLock envlock(m_server->m_env_mutex);
|
|
ScopeProfiler sp(g_profiler, "EmergeThread: after "
|
|
"Mapgen::makeChunk (envlock)", SPT_AVG);
|
|
|
|
map->finishBlockMake(&data, modified_blocks);
|
|
|
|
block = map->getBlockNoCreateNoEx(p);
|
|
if (block) {
|
|
/*
|
|
Do some post-generate stuff
|
|
*/
|
|
v3s16 minp = data.blockpos_min * MAP_BLOCKSIZE;
|
|
v3s16 maxp = data.blockpos_max * MAP_BLOCKSIZE +
|
|
v3s16(1,1,1) * (MAP_BLOCKSIZE - 1);
|
|
|
|
// Ignore map edit events, they will not need to be sent
|
|
// to anybody because the block hasn't been sent to anybody
|
|
MapEditEventAreaIgnorer
|
|
ign(&m_server->m_ignore_map_edit_events_area,
|
|
VoxelArea(minp, maxp));
|
|
{ // takes about 90ms with -O1 on an e3-1230v2
|
|
m_server->getScriptIface()->
|
|
environment_OnGenerated(
|
|
minp, maxp, emerge->getBlockSeed(minp));
|
|
}
|
|
|
|
EMERGE_DBG_OUT("ended up with: " << analyze_block(block));
|
|
|
|
m_server->m_env->activateBlock(block, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
Set sent status of modified blocks on clients
|
|
*/
|
|
|
|
// NOTE: Server's clients are also behind the connection mutex
|
|
//conlock: consistently takes 30-40ms to acquire
|
|
JMutexAutoLock lock(m_server->m_con_mutex);
|
|
// Add the originally fetched block to the modified list
|
|
if (block)
|
|
modified_blocks[p] = block;
|
|
|
|
// Update weather data in mapblock
|
|
for(std::map<v3s16, MapBlock *>::iterator
|
|
i = modified_blocks.begin();
|
|
i != modified_blocks.end(); ++i) {
|
|
map->getHeat(m_server->m_env, MAP_BLOCKSIZE*i->first ,i->second);
|
|
map->getHumidity(m_server->m_env, MAP_BLOCKSIZE*i->first, i->second);
|
|
}
|
|
|
|
// Set the modified blocks unsent for all the clients
|
|
for (std::map<u16, RemoteClient*>::iterator
|
|
i = m_server->m_clients.begin();
|
|
i != m_server->m_clients.end(); ++i) {
|
|
RemoteClient *client = i->second;
|
|
if (modified_blocks.size() > 0) {
|
|
// Remove block from sent history
|
|
client->SetBlocksNotSent(modified_blocks);
|
|
}
|
|
}
|
|
}
|
|
catch (VersionMismatchException &e) {
|
|
std::ostringstream err;
|
|
err << "World data version mismatch in MapBlock "<<PP(last_tried_pos)<<std::endl;
|
|
err << "----"<<std::endl;
|
|
err << "\""<<e.what()<<"\""<<std::endl;
|
|
err << "See debug.txt."<<std::endl;
|
|
err << "World probably saved by a newer version of Minetest."<<std::endl;
|
|
m_server->setAsyncFatalError(err.str());
|
|
}
|
|
catch (SerializationError &e) {
|
|
std::ostringstream err;
|
|
err << "Invalid data in MapBlock "<<PP(last_tried_pos)<<std::endl;
|
|
err << "----"<<std::endl;
|
|
err << "\""<<e.what()<<"\""<<std::endl;
|
|
err << "See debug.txt."<<std::endl;
|
|
err << "You can ignore this using [ignore_world_load_errors = true]."<<std::endl;
|
|
m_server->setAsyncFatalError(err.str());
|
|
}
|
|
|
|
END_DEBUG_EXCEPTION_HANDLER(errorstream)
|
|
log_deregister_thread();
|
|
return NULL;
|
|
}
|