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mcserver/source/cChunkGenerator.cpp

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#include "Globals.h"
#include "cChunkGenerator.h"
#include "cWorld.h"
#include "../iniFile/iniFile.h"
#include "BioGen.h"
#include "HeiGen.h"
#include "CompoGen.h"
#include "StructGen.h"
#include "FinishGen.h"
#include "cRoot.h"
#include "cPluginManager.h"
#include "cLuaChunk.h"
/// If the generation queue size exceeds this number, a warning will be output
const int QUEUE_WARNING_LIMIT = 1000;
/// If the generation queue size exceeds this number, chunks with no clients will be skipped
const int QUEUE_SKIP_LIMIT = 500;
static BLOCKTYPE GetIniBlock(cIniFile & a_IniFile, const AString & a_SectionName, const AString & a_ValueName, const AString & a_Default)
{
AString BlockType = a_IniFile.GetValueSet(a_SectionName, a_ValueName, a_Default);
BLOCKTYPE Block = BlockStringToType(BlockType);
if (Block < 0)
{
LOGWARN("[&s].%s Could not parse block value \"%s\". Using default: \"%s\".", a_SectionName.c_str(), a_ValueName.c_str(), BlockType.c_str(),a_Default.c_str());
return BlockStringToType(a_Default);
}
return Block;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cChunkGenerator:
cChunkGenerator::cChunkGenerator(void)
: super("cChunkGenerator")
, m_World(NULL)
, m_BiomeGen(NULL)
, m_HeightGen(NULL)
, m_CompositionGen(NULL)
{
}
cChunkGenerator::~cChunkGenerator()
{
Stop();
}
bool cChunkGenerator::Start(cWorld * a_World, cIniFile & a_IniFile)
{
MTRand rnd;
m_World = a_World;
m_Seed = a_IniFile.GetValueSetI("Seed", "Seed", rnd.randInt());
InitBiomeGen(a_IniFile);
InitHeightGen(a_IniFile);
InitCompositionGen(a_IniFile);
InitStructureGens(a_IniFile);
InitFinishGens(a_IniFile);
a_IniFile.WriteFile();
return super::Start();
}
void cChunkGenerator::Stop(void)
{
m_ShouldTerminate = true;
m_Event.Set();
m_evtRemoved.Set(); // Wake up anybody waiting for empty queue
Wait();
// Delete the generating composition:
for (cFinishGenList::const_iterator itr = m_FinishGens.begin(); itr != m_FinishGens.end(); ++itr)
{
delete *itr;
}
m_FinishGens.clear();
for (cStructureGenList::const_iterator itr = m_StructureGens.begin(); itr != m_StructureGens.end(); ++itr)
{
delete *itr;
}
m_StructureGens.clear();
delete m_CompositionGen;
m_CompositionGen = NULL;
delete m_HeightGen;
m_HeightGen = NULL;
delete m_BiomeGen;
m_BiomeGen = NULL;
}
void cChunkGenerator::InitBiomeGen(cIniFile & a_IniFile)
{
AString BiomeGenName = a_IniFile.GetValueSet("Generator", "BiomeGen", "");
if (BiomeGenName.empty())
{
LOGWARN("[Generator]::BiomeGen value not found in world.ini, using \"DistortedVoronoi\".");
BiomeGenName = "DistortedVoronoi";
}
bool CacheOffByDefault = false;
if (NoCaseCompare(BiomeGenName, "constant") == 0)
{
AString Biome = a_IniFile.GetValueSet("Generator", "ConstantBiome", "Plains");
EMCSBiome b = StringToBiome(Biome);
if (b == -1)
{
LOGWARN("[Generator]::ConstantBiome value \"%s\" not recognized, using \"Plains\".", Biome.c_str());
b = biPlains;
}
m_BiomeGen = new cBioGenConstant(b);
CacheOffByDefault = true; // we're generating faster than a cache would retrieve data :)
}
else if (NoCaseCompare(BiomeGenName, "checkerboard") == 0)
{
int BiomeSize = a_IniFile.GetValueSetI("Generator", "CheckerboardBiomeSize", 64);
AString Biomes = a_IniFile.GetValueSet ("Generator", "CheckerBoardBiomes", "");
m_BiomeGen = new cBioGenCheckerboard(BiomeSize, Biomes);
CacheOffByDefault = true; // we're (probably) generating faster than a cache would retrieve data
}
else if (NoCaseCompare(BiomeGenName, "voronoi") == 0)
{
int CellSize = a_IniFile.GetValueSetI("Generator", "VoronoiCellSize", 64);
AString Biomes = a_IniFile.GetValueSet ("Generator", "VoronoiBiomes", "");
m_BiomeGen = new cBioGenVoronoi(m_Seed, CellSize, Biomes);
}
else
{
if (NoCaseCompare(BiomeGenName, "distortedvoronoi") != 0)
{
LOGWARNING("Unknown BiomeGen \"%s\", using \"DistortedVoronoi\" instead.", BiomeGenName.c_str());
}
int CellSize = a_IniFile.GetValueSetI("Generator", "DistortedVoronoiCellSize", 96);
AString Biomes = a_IniFile.GetValueSet ("Generator", "DistortedVoronoiBiomes", "");
m_BiomeGen = new cBioGenDistortedVoronoi(m_Seed, CellSize, Biomes);
}
// Add a cache, if requested:
int CacheSize = a_IniFile.GetValueSetI("Generator", "BiomeGenCacheSize", CacheOffByDefault ? 0 : 64);
if (CacheSize > 0)
{
if (CacheSize < 4)
{
LOGWARNING("Biomegen cache size set too low, would hurt performance instead of helping. Increasing from %d to %d",
CacheSize, 4
);
CacheSize = 4;
}
LOGINFO("Using a cache for biomegen of size %d.", CacheSize);
m_BiomeGen = new cBioGenCache(m_BiomeGen, CacheSize);
}
}
void cChunkGenerator::InitHeightGen(cIniFile & a_IniFile)
{
AString HeightGenName = a_IniFile.GetValueSet("Generator", "HeightGen", "");
if (HeightGenName.empty())
{
LOGWARN("[Generator]::HeightGen value not found in world.ini, using \"Biomal\".");
HeightGenName = "Biomal";
}
bool CacheOffByDefault = false;
if (NoCaseCompare(HeightGenName, "flat") == 0)
{
int Height = a_IniFile.GetValueSetI("Generator", "FlatHeight", 5);
m_HeightGen = new cHeiGenFlat(Height);
CacheOffByDefault = true; // We're generating faster than a cache would retrieve data
}
else if (NoCaseCompare(HeightGenName, "classic") == 0)
{
// These used to be in terrain.ini, but now they are in world.ini (so that multiple worlds can have different values):
float HeightFreq1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq1", 0.1);
float HeightFreq2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq2", 1.0);
float HeightFreq3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq3", 2.0);
float HeightAmp1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp1", 1.0);
float HeightAmp2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp2", 0.5);
float HeightAmp3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp3", 0.5);
m_HeightGen = new cHeiGenClassic(m_Seed, HeightFreq1, HeightAmp1, HeightFreq2, HeightAmp2, HeightFreq3, HeightAmp3);
}
else // "biomal" or <not found>
{
if (NoCaseCompare(HeightGenName, "biomal") != 0)
{
LOGWARN("Unknown HeightGen \"%s\", using \"Biomal\" instead.", HeightGenName.c_str());
}
m_HeightGen = new cHeiGenBiomal(m_Seed, *m_BiomeGen);
}
// Add a cache, if requested:
int CacheSize = a_IniFile.GetValueSetI("Generator", "HeightGenCacheSize", CacheOffByDefault ? 0 : 64);
if (CacheSize > 0)
{
if (CacheSize < 4)
{
LOGWARNING("Heightgen cache size set too low, would hurt performance instead of helping. Increasing from %d to %d",
CacheSize, 4
);
CacheSize = 4;
}
LOGINFO("Using a cache for Heightgen of size %d.", CacheSize);
m_HeightGen = new cHeiGenCache(m_HeightGen, CacheSize);
}
}
void cChunkGenerator::InitCompositionGen(cIniFile & a_IniFile)
{
AString CompoGenName = a_IniFile.GetValueSet("Generator", "CompositionGen", "");
if (CompoGenName.empty())
{
LOGWARN("[Generator]::CompositionGen value not found in world.ini, using \"Biomal\".");
CompoGenName = "Biomal";
}
if (NoCaseCompare(CompoGenName, "sameblock") == 0)
{
AString BlockType = a_IniFile.GetValueSet("Generator", "SameBlockType", "");
if (BlockType.empty())
{
LOGWARN("[Generator]::SameBlockType value not found in world.ini, using \"stone\".");
BlockType = "stone";
}
int Block = GetIniBlock(a_IniFile, "[Generator]", "SameBlockType", "stone");
bool Bedrocked = (a_IniFile.GetValueSetI("Generator", "SameBlockBedrocked", 1) != 0);
m_CompositionGen = new cCompoGenSameBlock((BLOCKTYPE)Block, Bedrocked);
}
else if (NoCaseCompare(CompoGenName, "debugbiomes") == 0)
{
m_CompositionGen = new cCompoGenDebugBiomes;
}
else if (NoCaseCompare(CompoGenName, "classic") == 0)
{
int SeaLevel = a_IniFile.GetValueSetI("Generator", "ClassicSeaLevel", 60);
int BeachHeight = a_IniFile.GetValueSetI("Generator", "ClassicBeachHeight", 2);
int BeachDepth = a_IniFile.GetValueSetI("Generator", "ClassicBeachDepth", 4);
BLOCKTYPE BlockTop = GetIniBlock(a_IniFile, "Generator", "ClassicBlockTop", "grass");
BLOCKTYPE BlockMiddle = GetIniBlock(a_IniFile, "Generator", "ClassicBlockMiddle", "dirt");
BLOCKTYPE BlockBottom = GetIniBlock(a_IniFile, "Generator", "ClassicBlockBottom", "stone");
BLOCKTYPE BlockBeach = GetIniBlock(a_IniFile, "Generator", "ClassicBlockBeach", "sand");
BLOCKTYPE BlockBeachBottom = GetIniBlock(a_IniFile, "Generator", "ClassicBlockBeachBottom", "sandstone");
BLOCKTYPE BlockSea = GetIniBlock(a_IniFile, "Generator", "ClassicBlockSea", "9");
m_CompositionGen = new cCompoGenClassic(
SeaLevel, BeachHeight, BeachDepth, BlockTop, BlockMiddle, BlockBottom, BlockBeach,
BlockBeachBottom, BlockSea
);
}
else
{
if (NoCaseCompare(CompoGenName, "biomal") != 0)
{
LOGWARN("Unknown CompositionGen \"%s\", using \"biomal\" instead.", CompoGenName.c_str());
}
int SeaLevel = a_IniFile.GetValueSetI("Generator", "BiomalSeaLevel", 62);
m_CompositionGen = new cCompoGenBiomal(m_Seed, SeaLevel);
}
}
void cChunkGenerator::InitStructureGens(cIniFile & a_IniFile)
{
AString Structures = a_IniFile.GetValueSet("Generator", "Structures", "Trees,MarbleCaves,OreNests");
AStringVector Str = StringSplit(Structures, ",");
for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
{
if (NoCaseCompare(*itr, "trees") == 0)
{
m_StructureGens.push_back(new cStructGenTrees(m_Seed, m_BiomeGen, m_HeightGen, m_CompositionGen));
}
else if (NoCaseCompare(*itr, "marblecaves") == 0)
{
m_StructureGens.push_back(new cStructGenMarbleCaves(m_Seed));
}
else if (NoCaseCompare(*itr, "orenests") == 0)
{
m_StructureGens.push_back(new cStructGenOreNests(m_Seed));
}
else
{
LOGWARNING("Unknown structure generator: \"%s\". Ignoring.", itr->c_str());
}
} // for itr - Str[]
}
void cChunkGenerator::InitFinishGens(cIniFile & a_IniFile)
{
AString Structures = a_IniFile.GetValueSet("Generator", "Finishers", "SprinkleFoliage,Ice,Snow");
AStringVector Str = StringSplit(Structures, ",");
for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
{
if (NoCaseCompare(*itr, "SprinkleFoliage") == 0)
{
m_FinishGens.push_back(new cFinishGenSprinkleFoliage(m_Seed));
}
else if (NoCaseCompare(*itr, "Snow") == 0)
{
m_FinishGens.push_back(new cFinishGenSnow);
}
else if (NoCaseCompare(*itr, "Ice") == 0)
{
m_FinishGens.push_back(new cFinishGenIce);
}
} // for itr - Str[]
}
void cChunkGenerator::QueueGenerateChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
{
{
cCSLock Lock(m_CS);
// Check if it is already in the queue:
for (cChunkCoordsList::iterator itr = m_Queue.begin(); itr != m_Queue.end(); ++itr)
{
if ((itr->m_ChunkX == a_ChunkX) && (itr->m_ChunkY == a_ChunkY) && (itr->m_ChunkZ == a_ChunkZ))
{
// Already in the queue, bail out
return;
}
} // for itr - m_Queue[]
// Add to queue, issue a warning if too many:
if (m_Queue.size() >= QUEUE_WARNING_LIMIT)
{
LOGWARN("WARNING: Adding chunk [%i, %i] to generation queue; Queue is too big! (%i)", a_ChunkX, a_ChunkZ, m_Queue.size());
}
m_Queue.push_back(cChunkCoords(a_ChunkX, a_ChunkY, a_ChunkZ));
}
m_Event.Set();
}
void cChunkGenerator::GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
{
m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, a_BiomeMap);
}
void cChunkGenerator::WaitForQueueEmpty(void)
{
cCSLock Lock(m_CS);
while (!m_ShouldTerminate && !m_Queue.empty())
{
cCSUnlock Unlock(Lock);
m_evtRemoved.Wait();
}
}
int cChunkGenerator::GetQueueLength(void)
{
cCSLock Lock(m_CS);
return (int)m_Queue.size();
}
EMCSBiome cChunkGenerator::GetBiomeAt(int a_BlockX, int a_BlockZ)
{
cChunkDef::BiomeMap Biomes;
int Y = 0;
int ChunkX, ChunkZ;
cWorld::AbsoluteToRelative(a_BlockX, Y, a_BlockZ, ChunkX, Y, ChunkZ);
m_BiomeGen->GenBiomes(ChunkX, ChunkZ, Biomes);
return cChunkDef::GetBiome(Biomes, a_BlockX, a_BlockZ);
}
void cChunkGenerator::Execute(void)
{
while (!m_ShouldTerminate)
{
cCSLock Lock(m_CS);
while (m_Queue.size() == 0)
{
cCSUnlock Unlock(Lock);
m_Event.Wait();
if (m_ShouldTerminate)
{
return;
}
}
cChunkCoords coords = m_Queue.front(); // Get next coord from queue
m_Queue.erase( m_Queue.begin() ); // Remove coordinate from queue
bool SkipEnabled = (m_Queue.size() > QUEUE_SKIP_LIMIT);
Lock.Unlock(); // Unlock ASAP
m_evtRemoved.Set();
// Hack for regenerating chunks: if Y != 0, the chunk is considered invalid, even if it has its data set
if ((coords.m_ChunkY == 0) && m_World->IsChunkValid(coords.m_ChunkX, coords.m_ChunkY, coords.m_ChunkZ))
{
LOGD("Chunk [%d, %d] already generated, skipping generation", coords.m_ChunkX, coords.m_ChunkZ);
// Already generated, ignore request
continue;
}
if (SkipEnabled && !m_World->HasChunkAnyClients(coords.m_ChunkX, coords.m_ChunkY, coords.m_ChunkZ))
{
LOGWARNING("Chunk generator overloaded, skipping chunk [%d, %d, %d]", coords.m_ChunkX, coords.m_ChunkY, coords.m_ChunkZ);
continue;
}
LOGD("Generating chunk [%d, %d, %d]", coords.m_ChunkX, coords.m_ChunkY, coords.m_ChunkZ);
DoGenerate(coords.m_ChunkX, coords.m_ChunkY, coords.m_ChunkZ);
// Save the chunk right after generating, so that we don't have to generate it again on next run
m_World->GetStorage().QueueSaveChunk(coords.m_ChunkX, coords.m_ChunkY, coords.m_ChunkZ);
} // while (!bStop)
}
void cChunkGenerator::DoGenerate(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
{
cChunkDef::BiomeMap BiomeMap;
cChunkDef::BlockTypes BlockTypes;
cChunkDef::BlockNibbles BlockMeta;
cChunkDef::HeightMap HeightMap;
cEntityList Entities;
cBlockEntityList BlockEntities;
cLuaChunk LuaChunk( BlockTypes, BlockMeta, HeightMap, BiomeMap );
if( cRoot::Get()->GetPluginManager()->CallHook( cPluginManager::E_PLUGIN_CHUNK_GENERATING, 3, a_ChunkX, a_ChunkZ, &LuaChunk ) )
{
// A plugin interrupted generation, handle something plugin specific?
//LOG("returned true");
}
else
{
// Use the composed generator:
m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, BiomeMap);
m_HeightGen->GenHeightMap(a_ChunkX, a_ChunkZ, HeightMap);
m_CompositionGen->ComposeTerrain(a_ChunkX, a_ChunkZ, BlockTypes, BlockMeta, HeightMap, BiomeMap, Entities, BlockEntities);
for (cStructureGenList::iterator itr = m_StructureGens.begin(); itr != m_StructureGens.end(); ++itr)
{
(*itr)->GenStructures(a_ChunkX, a_ChunkZ, BlockTypes, BlockMeta, HeightMap, Entities, BlockEntities);
} // for itr - m_StructureGens[]
for (cFinishGenList::iterator itr = m_FinishGens.begin(); itr != m_FinishGens.end(); ++itr)
{
(*itr)->GenFinish(a_ChunkX, a_ChunkZ, BlockTypes, BlockMeta, HeightMap, BiomeMap, Entities, BlockEntities);
} // for itr - m_FinishGens[]
}
m_World->SetChunkData(
a_ChunkX, a_ChunkY, a_ChunkZ,
BlockTypes, BlockMeta,
NULL, NULL, // We don't have lighting, chunk will be lighted when needed
&HeightMap, &BiomeMap,
Entities, BlockEntities,
true
);
cRoot::Get()->GetPluginManager()->CallHook(cPluginManager::E_PLUGIN_CHUNK_GENERATED, 3, m_World, a_ChunkX, a_ChunkZ);
}
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