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// ShapeGen.cpp
// Implements the function to create a cTerrainShapeGen descendant based on INI file settings
#include "Globals.h"
#include "HeiGen.h"
#include "../IniFile.h"
#include "DistortedHeightmap.h"
#include "EndGen.h"
#include "Noise3DGenerator.h"
#include "TwoHeights.h"
////////////////////////////////////////////////////////////////////////////////
// cTerrainHeightToShapeGen:
/** Converts old-style height-generators into new-style shape-generators. */
class cTerrainHeightToShapeGen : public cTerrainShapeGen
{
public:
cTerrainHeightToShapeGen(std::unique_ptr<cTerrainHeightGen> a_HeightGen) :
m_HeightGen(std::move(a_HeightGen))
{
}
// cTerrainShapeGen overrides:
virtual void GenShape(cChunkCoords a_ChunkCoords, cChunkDesc::Shape & a_Shape) override
{
// Generate the heightmap:
cChunkDef::HeightMap heightMap;
m_HeightGen->GenHeightMap(a_ChunkCoords, heightMap);
// Convert from heightmap to shape:
for (int z = 0; z < cChunkDef::Width; z++)
{
for (int x = 0; x < cChunkDef::Width; x++)
{
int height = cChunkDef::GetHeight(heightMap, x, z) + 1;
Byte * shapeColumn = &(a_Shape[(x + 16 * z) * 256]);
for (int y = 0; y < height; y++)
{
shapeColumn[y] = 1;
}
for (int y = height; y < cChunkDef::Height; y++)
{
shapeColumn[y] = 0;
}
} // for x
} // for z
}
virtual void InitializeShapeGen(cIniFile & a_IniFile) override { m_HeightGen->InitializeHeightGen(a_IniFile); }
protected:
/** The height generator being converted. */
std::unique_ptr<cTerrainHeightGen> m_HeightGen;
};
typedef std::shared_ptr<cTerrainHeightToShapeGen> cTerrainHeightToShapeGenPtr;
////////////////////////////////////////////////////////////////////////////////
// cTerrainShapeGen:
std::unique_ptr<cTerrainShapeGen> cTerrainShapeGen::CreateShapeGen(
cIniFile & a_IniFile,
cBiomeGen & a_BiomeGen,
int a_Seed,
bool & a_CacheOffByDefault
)
{
AString shapeGenName = a_IniFile.GetValue("Generator", "ShapeGen");
if (shapeGenName.empty())
{
LOGWARN("[Generator] ShapeGen value not set in world.ini, using \"BiomalNoise3D\".");
shapeGenName = "BiomalNoise3D";
}
// If the shapegen is HeightMap, redirect to older HeightMap-based generators:
if (NoCaseCompare(shapeGenName, "HeightMap") == 0)
{
auto heightGen = cTerrainHeightGen::CreateHeightGen(a_IniFile, a_BiomeGen, a_Seed, a_CacheOffByDefault);
if (heightGen != nullptr)
{
return std::make_unique<cTerrainHeightToShapeGen>(std::move(heightGen));
}
// The height gen was not recognized; several heightgens were promoted to shape gens, so let's try them instead:
shapeGenName = a_IniFile.GetValue("Generator", "HeightGen", "");
if (shapeGenName.empty())
{
LOGWARNING("[Generator] ShapeGen set to HeightMap, but HeightGen not set. Reverting to \"BiomalNoise3D\".");
shapeGenName = "BiomalNoise3D";
a_IniFile.SetValue("Generator", "ShapeGen", shapeGenName);
}
}
// Choose the shape generator based on the name:
a_CacheOffByDefault = false;
std::unique_ptr<cTerrainShapeGen> res;
if (NoCaseCompare(shapeGenName, "DistortedHeightmap") == 0)
{
res = std::make_unique<cDistortedHeightmap>(a_Seed, a_BiomeGen);
}
else if (NoCaseCompare(shapeGenName, "End") == 0)
{
res = std::make_unique<cEndGen>(a_Seed);
}
else if (NoCaseCompare(shapeGenName, "BiomalNoise3D") == 0)
{
res = std::make_unique<cBiomalNoise3DComposable>(a_Seed, a_BiomeGen);
}
else if (NoCaseCompare(shapeGenName, "Noise3D") == 0)
{
res = std::make_unique<cNoise3DComposable>(a_Seed);
}
else if (NoCaseCompare(shapeGenName, "TwoHeights") == 0)
{
res = CreateShapeGenTwoHeights(a_Seed, a_BiomeGen);
}
else
{
// No match found, force-set the default and retry
LOGWARN("Unknown ShapeGen \"%s\", using \"BiomalNoise3D\" instead.", shapeGenName.c_str());
a_IniFile.SetValue("Generator", "ShapeGen", "BiomalNoise3D");
return CreateShapeGen(a_IniFile, a_BiomeGen, a_Seed, a_CacheOffByDefault);
}
// Read the settings:
res->InitializeShapeGen(a_IniFile);
return res;
}
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