1 files changed, 454 insertions, 0 deletions
diff --git a/src/Generating/ComposableGenerator.cpp b/src/Generating/ComposableGenerator.cpp
new file mode 100644
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+++ b/src/Generating/ComposableGenerator.cpp
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+
+// ComposableGenerator.cpp
+
+// Implements the cComposableGenerator class representing the chunk generator that takes the composition approach to generating chunks
+
+#include "Globals.h"
+
+#include "ComposableGenerator.h"
+#include "../World.h"
+#include "inifile/iniFile.h"
+#include "../Root.h"
+
+// Individual composed algorithms:
+#include "BioGen.h"
+#include "HeiGen.h"
+#include "CompoGen.h"
+#include "StructGen.h"
+#include "FinishGen.h"
+
+#include "Caves.h"
+#include "DistortedHeightmap.h"
+#include "EndGen.h"
+#include "MineShafts.h"
+#include "Noise3DGenerator.h"
+#include "Ravines.h"
+
+
+
+
+
+
+
+
+
+
+cComposableGenerator::cComposableGenerator(cChunkGenerator & a_ChunkGenerator) :
+	super(a_ChunkGenerator),
+	m_BiomeGen(NULL),
+	m_HeightGen(NULL),
+	m_CompositionGen(NULL),
+	m_UnderlyingBiomeGen(NULL),
+	m_UnderlyingHeightGen(NULL),
+	m_UnderlyingCompositionGen(NULL)
+{
+}
+
+
+
+
+
+cComposableGenerator::~cComposableGenerator()
+{
+	// 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;
+	delete m_UnderlyingCompositionGen;
+	m_UnderlyingCompositionGen = NULL;
+	delete m_UnderlyingHeightGen;
+	m_UnderlyingHeightGen = NULL;
+	delete m_UnderlyingBiomeGen;
+	m_UnderlyingBiomeGen = NULL;
+}
+
+
+
+
+
+void cComposableGenerator::Initialize(cWorld * a_World, cIniFile & a_IniFile)
+{
+	super::Initialize(a_World, a_IniFile);
+	
+	InitBiomeGen(a_IniFile);
+	InitHeightGen(a_IniFile);
+	InitCompositionGen(a_IniFile);
+	InitStructureGens(a_IniFile);
+	InitFinishGens(a_IniFile);
+}
+
+
+
+
+
+void cComposableGenerator::GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
+{
+	if (m_BiomeGen != NULL)  // Quick fix for generator deinitializing before the world storage finishes loading
+	{
+		m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, a_BiomeMap);
+	}
+}
+
+
+
+
+
+void cComposableGenerator::DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc)
+{
+	if (a_ChunkDesc.IsUsingDefaultBiomes())
+	{
+		m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, a_ChunkDesc.GetBiomeMap());
+	}
+	
+	if (a_ChunkDesc.IsUsingDefaultHeight())
+	{
+		m_HeightGen->GenHeightMap(a_ChunkX, a_ChunkZ, a_ChunkDesc.GetHeightMap());
+	}
+	
+	if (a_ChunkDesc.IsUsingDefaultComposition())
+	{
+		m_CompositionGen->ComposeTerrain(a_ChunkDesc);
+	}
+
+	if (a_ChunkDesc.IsUsingDefaultStructures())
+	{	
+		for (cStructureGenList::iterator itr = m_StructureGens.begin(); itr != m_StructureGens.end(); ++itr)
+		{
+			(*itr)->GenStructures(a_ChunkDesc);
+		}   // for itr - m_StructureGens[]
+	}
+	
+	if (a_ChunkDesc.IsUsingDefaultFinish())
+	{
+		for (cFinishGenList::iterator itr = m_FinishGens.begin(); itr != m_FinishGens.end(); ++itr)
+		{
+			(*itr)->GenFinish(a_ChunkDesc);
+		}  // for itr - m_FinishGens[]
+	}
+}
+
+
+
+
+
+void cComposableGenerator::InitBiomeGen(cIniFile & a_IniFile)
+{
+	bool CacheOffByDefault = false;
+	m_BiomeGen = cBiomeGen::CreateBiomeGen(a_IniFile, m_ChunkGenerator.GetSeed(), CacheOffByDefault);
+	
+	// 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;
+		}
+		LOGD("Using a cache for biomegen of size %d.", CacheSize);
+		m_UnderlyingBiomeGen = m_BiomeGen;
+		m_BiomeGen = new cBioGenCache(m_UnderlyingBiomeGen, CacheSize);
+	}
+}
+
+
+
+
+
+void cComposableGenerator::InitHeightGen(cIniFile & a_IniFile)
+{
+	AString HeightGenName = a_IniFile.GetValueSet("Generator", "HeightGen", "");
+	if (HeightGenName.empty())
+	{
+		LOGWARN("[Generator] HeightGen value not set in world.ini, using \"Biomal\".");
+		HeightGenName = "Biomal";
+	}
+	
+	int Seed = m_ChunkGenerator.GetSeed();
+	bool CacheOffByDefault = false;
+	if (NoCaseCompare(HeightGenName, "flat") == 0)
+	{
+		m_HeightGen = new cHeiGenFlat;
+		CacheOffByDefault = true;  // We're generating faster than a cache would retrieve data
+	}
+	else if (NoCaseCompare(HeightGenName, "classic") == 0)
+	{
+		m_HeightGen = new cHeiGenClassic(Seed);
+	}
+	else if (NoCaseCompare(HeightGenName, "DistortedHeightmap") == 0)
+	{
+		m_HeightGen = new cDistortedHeightmap(Seed, *m_BiomeGen);
+	}
+	else if (NoCaseCompare(HeightGenName, "End") == 0)
+	{
+		m_HeightGen = new cEndGen(Seed);
+	}
+	else if (NoCaseCompare(HeightGenName, "Noise3D") == 0)
+	{
+		m_HeightGen = new cNoise3DComposable(Seed);
+	}
+	else  // "biomal" or <not found>
+	{
+		if (NoCaseCompare(HeightGenName, "biomal") != 0)
+		{
+			LOGWARN("Unknown HeightGen \"%s\", using \"Biomal\" instead.", HeightGenName.c_str());
+		}
+		m_HeightGen = new cHeiGenBiomal(Seed, *m_BiomeGen);
+
+		/*
+		// Performance-testing:
+		LOGINFO("Measuring performance of cHeiGenBiomal...");
+		clock_t BeginTick = clock();
+		for (int x = 0; x < 500; x++)
+		{
+			cChunkDef::HeightMap Heights;
+			m_HeightGen->GenHeightMap(x * 5, x * 5, Heights);
+		}
+		clock_t Duration = clock() - BeginTick;
+		LOGINFO("HeightGen for 500 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
+		//*/
+	}
+	
+	// Read the settings:
+	m_HeightGen->InitializeHeightGen(a_IniFile);
+	
+	// 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;
+		}
+		LOGD("Using a cache for Heightgen of size %d.", CacheSize);
+		m_UnderlyingHeightGen = m_HeightGen;
+		m_HeightGen = new cHeiGenCache(*m_UnderlyingHeightGen, CacheSize);
+	}
+}
+
+
+
+
+
+void cComposableGenerator::InitCompositionGen(cIniFile & a_IniFile)
+{
+	int Seed = m_ChunkGenerator.GetSeed();
+	AString CompoGenName = a_IniFile.GetValueSet("Generator", "CompositionGen", "");
+	if (CompoGenName.empty())
+	{
+		LOGWARN("[Generator] CompositionGen value not set in world.ini, using \"Biomal\".");
+		CompoGenName = "Biomal";
+	}
+	if (NoCaseCompare(CompoGenName, "sameblock") == 0)
+	{
+		m_CompositionGen = new cCompoGenSameBlock;
+	}
+	else if (NoCaseCompare(CompoGenName, "debugbiomes") == 0)
+	{
+		m_CompositionGen = new cCompoGenDebugBiomes;
+	}
+	else if (NoCaseCompare(CompoGenName, "classic") == 0)
+	{
+		m_CompositionGen = new cCompoGenClassic;
+	}
+	else if (NoCaseCompare(CompoGenName, "DistortedHeightmap") == 0)
+	{
+		m_CompositionGen = new cDistortedHeightmap(Seed, *m_BiomeGen);
+	}
+	else if (NoCaseCompare(CompoGenName, "end") == 0)
+	{
+		m_CompositionGen = new cEndGen(Seed);
+	}
+	else if (NoCaseCompare(CompoGenName, "nether") == 0)
+	{
+		m_CompositionGen = new cCompoGenNether(Seed);
+	}
+	else if (NoCaseCompare(CompoGenName, "Noise3D") == 0)
+	{
+		m_CompositionGen = new cNoise3DComposable(m_ChunkGenerator.GetSeed());
+	}
+	else
+	{
+		if (NoCaseCompare(CompoGenName, "biomal") != 0)
+		{
+			LOGWARN("Unknown CompositionGen \"%s\", using \"biomal\" instead.", CompoGenName.c_str());
+		}
+		m_CompositionGen = new cCompoGenBiomal(Seed);
+
+		/*
+		// Performance-testing:
+		LOGINFO("Measuring performance of cCompoGenBiomal...");
+		clock_t BeginTick = clock();
+		for (int x = 0; x < 500; x++)
+		{
+			cChunkDesc Desc(200 + x * 8, 200 + x * 8);
+			m_BiomeGen->GenBiomes(Desc.GetChunkX(), Desc.GetChunkZ(), Desc.GetBiomeMap());
+			m_HeightGen->GenHeightMap(Desc.GetChunkX(), Desc.GetChunkZ(), Desc.GetHeightMap());
+			m_CompositionGen->ComposeTerrain(Desc);
+		}
+		clock_t Duration = clock() - BeginTick;
+		LOGINFO("CompositionGen for 500 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
+		//*/
+	}
+	
+	// Read the settings from the ini file:
+	m_CompositionGen->InitializeCompoGen(a_IniFile);
+	
+	int CompoGenCacheSize = a_IniFile.GetValueSetI("Generator", "CompositionGenCacheSize", 64);
+	if (CompoGenCacheSize > 1)
+	{
+		m_UnderlyingCompositionGen = m_CompositionGen;
+		m_CompositionGen = new cCompoGenCache(*m_UnderlyingCompositionGen, 32);
+	}
+}
+
+
+
+
+
+void cComposableGenerator::InitStructureGens(cIniFile & a_IniFile)
+{
+	AString Structures = a_IniFile.GetValueSet("Generator", "Structures", "Ravines, WormNestCaves, WaterLakes, LavaLakes, OreNests, Trees");
+
+	int Seed = m_ChunkGenerator.GetSeed();
+	AStringVector Str = StringSplitAndTrim(Structures, ",");
+	for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
+	{
+		if (NoCaseCompare(*itr, "DualRidgeCaves") == 0)
+		{
+			float Threshold = (float)a_IniFile.GetValueSetF("Generator", "DualRidgeCavesThreshold", 0.3);
+			m_StructureGens.push_back(new cStructGenDualRidgeCaves(Seed, Threshold));
+		}
+		else if (NoCaseCompare(*itr, "DirectOverhangs") == 0)
+		{
+			m_StructureGens.push_back(new cStructGenDirectOverhangs(Seed));
+		}
+		else if (NoCaseCompare(*itr, "DistortedMembraneOverhangs") == 0)
+		{
+			m_StructureGens.push_back(new cStructGenDistortedMembraneOverhangs(Seed));
+		}
+		else if (NoCaseCompare(*itr, "LavaLakes") == 0)
+		{
+			int Probability = a_IniFile.GetValueSetI("Generator", "LavaLakesProbability", 10);
+			m_StructureGens.push_back(new cStructGenLakes(Seed * 5 + 16873, E_BLOCK_STATIONARY_LAVA, *m_HeightGen, Probability));
+		}
+		else if (NoCaseCompare(*itr, "MarbleCaves") == 0)
+		{
+			m_StructureGens.push_back(new cStructGenMarbleCaves(Seed));
+		}
+		else if (NoCaseCompare(*itr, "MineShafts") == 0)
+		{
+			int GridSize        = a_IniFile.GetValueSetI("Generator", "MineShaftsGridSize",        512);
+			int MaxSystemSize   = a_IniFile.GetValueSetI("Generator", "MineShaftsMaxSystemSize",   160);
+			int ChanceCorridor  = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceCorridor",  600);
+			int ChanceCrossing  = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceCrossing",  200);
+			int ChanceStaircase = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceStaircase", 200);
+			m_StructureGens.push_back(new cStructGenMineShafts(
+				Seed, GridSize, MaxSystemSize, 
+				ChanceCorridor, ChanceCrossing, ChanceStaircase
+			));
+		}
+		else if (NoCaseCompare(*itr, "OreNests") == 0)
+		{
+			m_StructureGens.push_back(new cStructGenOreNests(Seed));
+		}
+		else if (NoCaseCompare(*itr, "Ravines") == 0)
+		{
+			m_StructureGens.push_back(new cStructGenRavines(Seed, 128));
+		}
+		else if (NoCaseCompare(*itr, "Trees") == 0)
+		{
+			m_StructureGens.push_back(new cStructGenTrees(Seed, m_BiomeGen, m_HeightGen, m_CompositionGen));
+		}
+		else if (NoCaseCompare(*itr, "WaterLakes") == 0)
+		{
+			int Probability = a_IniFile.GetValueSetI("Generator", "WaterLakesProbability", 25);
+			m_StructureGens.push_back(new cStructGenLakes(Seed * 3 + 652, E_BLOCK_STATIONARY_WATER, *m_HeightGen, Probability));
+		}
+		else if (NoCaseCompare(*itr, "WormNestCaves") == 0)
+		{
+			m_StructureGens.push_back(new cStructGenWormNestCaves(Seed));
+		}
+		else
+		{
+			LOGWARNING("Unknown structure generator: \"%s\". Ignoring.", itr->c_str());
+		}
+	}  // for itr - Str[]
+}
+
+
+
+
+
+void cComposableGenerator::InitFinishGens(cIniFile & a_IniFile)
+{
+	int Seed = m_ChunkGenerator.GetSeed();
+	AString Structures = a_IniFile.GetValueSet("Generator", "Finishers", "SprinkleFoliage,Ice,Snow,Lilypads,BottomLava,DeadBushes,PreSimulator");
+
+	AStringVector Str = StringSplitAndTrim(Structures, ",");
+	for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
+	{
+		// Finishers, alpha-sorted:
+		if (NoCaseCompare(*itr, "BottomLava") == 0)
+		{
+			int DefaultBottomLavaLevel = (m_World->GetDimension() == dimNether) ? 30 : 10;
+			int BottomLavaLevel = a_IniFile.GetValueSetI("Generator", "BottomLavaLevel", DefaultBottomLavaLevel);
+			m_FinishGens.push_back(new cFinishGenBottomLava(BottomLavaLevel));
+		}
+		else if (NoCaseCompare(*itr, "DeadBushes") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenSingleBiomeSingleTopBlock(Seed, E_BLOCK_DEAD_BUSH, biDesert, 2, E_BLOCK_SAND, E_BLOCK_SAND));
+		}
+		else if (NoCaseCompare(*itr, "Ice") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenIce);
+		}
+		else if (NoCaseCompare(*itr, "LavaSprings") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenFluidSprings(Seed, E_BLOCK_LAVA, a_IniFile, *m_World));
+		}
+		else if (NoCaseCompare(*itr, "Lilypads") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenSingleBiomeSingleTopBlock(Seed, E_BLOCK_LILY_PAD, biSwampland, 4, E_BLOCK_WATER, E_BLOCK_STATIONARY_WATER));
+		}
+		else if (NoCaseCompare(*itr, "PreSimulator") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenPreSimulator);
+		}
+		else if (NoCaseCompare(*itr, "Snow") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenSnow);
+		}
+		else if (NoCaseCompare(*itr, "SprinkleFoliage") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenSprinkleFoliage(Seed));
+		}
+		else if (NoCaseCompare(*itr, "WaterSprings") == 0)
+		{
+			m_FinishGens.push_back(new cFinishGenFluidSprings(Seed, E_BLOCK_WATER, a_IniFile, *m_World));
+		}
+	}  // for itr - Str[]
+}
+
+
+
+