Noise Class Reference

#include <noise.h>

Collaboration diagram for Noise:

Public Member Functions
	Noise (const NoiseParams *np, s32 seed, u32 sx, u32 sy, u32 sz=1)
	~Noise ()
void	setSize (u32 sx, u32 sy, u32 sz=1)
void	setSpreadFactor (v3f spread)
void	setOctaves (int octaves)
void	gradientMap2D (float x, float y, float step_x, float step_y, s32 seed)
void	gradientMap3D (float x, float y, float z, float step_x, float step_y, float step_z, s32 seed)
float *	perlinMap2D (float x, float y, float *persistence_map=NULL)
float *	perlinMap3D (float x, float y, float z, float *persistence_map=NULL)
float *	perlinMap2D_PO (float x, float xoff, float y, float yoff, float *persistence_map=NULL)
float *	perlinMap3D_PO (float x, float xoff, float y, float yoff, float z, float zoff, float *persistence_map=NULL)

Public Attributes
NoiseParams	np
s32	seed
u32	sx
u32	sy
u32	sz
float *	noise_buf = nullptr
float *	gradient_buf = nullptr
float *	persist_buf = nullptr
float *	result = nullptr

Private Member Functions
void	allocBuffers ()
void	resizeNoiseBuf (bool is3d)
void	updateResults (float g, float *gmap, const float *persistence_map, size_t bufsize)

Constructor & Destructor Documentation

Noise()

Noise::Noise	(	const NoiseParams *	np,
		s32	seed,
		u32	sx,
		u32	sy,
		u32	sz = 1 )

References allocBuffers(), np, seed, sx, sy, and sz.

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~Noise()

Noise::~Noise

(

)

References gradient_buf, noise_buf, persist_buf, and result.

Member Function Documentation

allocBuffers()

void Noise::allocBuffers ( )

private

References gradient_buf, noise_buf, persist_buf, resizeNoiseBuf(), result, sx, sy, and sz.

Referenced by Noise(), and setSize().

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gradientMap2D()

void Noise::gradientMap2D	(	float	x,
		float	y,
		float	step_x,
		float	step_y,
		s32	seed )

References biLinearInterpolation(), NoiseParams::flags, gradient_buf, idx, noise2d(), noise_buf, NOISE_FLAG_DEFAULTS, NOISE_FLAG_EASED, np, seed, sx, and sy.

Referenced by perlinMap2D().

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gradientMap3D()

void Noise::gradientMap3D	(	float	x,
		float	y,
		float	z,
		float	step_x,
		float	step_y,
		float	step_z,
		s32	seed )

References NoiseParams::flags, gradient_buf, idx, noise3d(), noise_buf, NOISE_FLAG_EASED, np, seed, sx, sy, sz, and triLinearInterpolation().

Referenced by perlinMap3D().

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perlinMap2D()

float * Noise::perlinMap2D	(	float	x,
		float	y,
		float *	persistence_map = NULL )

References gradientMap2D(), NoiseParams::lacunarity, np, NoiseParams::octaves, NoiseParams::offset, NoiseParams::persist, persist_buf, result, NoiseParams::scale, seed, NoiseParams::seed, NoiseParams::spread, sx, sy, and updateResults().

Referenced by BiomeGenOriginal::calcBiomeNoise(), OrePuff::generate(), OreSheet::generate(), OreStratum::generate(), MapgenV5::generateBaseTerrain(), MapgenBasic::generateBiomes(), MapgenCarpathian::generateTerrain(), MapgenFlat::generateTerrain(), MapgenFractal::generateTerrain(), MapgenV7::generateTerrain(), MapgenValleys::generateTerrain(), LuaPerlinNoiseMap::l_calc_2d_map(), LuaPerlinNoiseMap::l_get_2d_map(), LuaPerlinNoiseMap::l_get_2d_map_flat(), perlinMap2D_PO(), and TestNoise::testNoise2dBulk().

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perlinMap2D_PO()

float * Noise::perlinMap2D_PO ( float x, float xoff, float y, float yoff, float * persistence_map = NULL )

inline

References np, perlinMap2D(), and NoiseParams::spread.

Referenced by MapgenV6::calculateNoise().

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perlinMap3D()

float * Noise::perlinMap3D	(	float	x,
		float	y,
		float	z,
		float *	persistence_map = NULL )

References gradientMap3D(), NoiseParams::lacunarity, np, NoiseParams::octaves, NoiseParams::offset, NoiseParams::persist, persist_buf, result, NoiseParams::scale, seed, NoiseParams::seed, NoiseParams::spread, sx, sy, sz, and updateResults().

Referenced by OreBlob::generate(), OreVein::generate(), MapgenV5::generateBaseTerrain(), CavernsNoise::generateCaverns(), CavesNoiseIntersection::generateCaves(), MapgenCarpathian::generateTerrain(), MapgenV7::generateTerrain(), MapgenValleys::generateTerrain(), LuaPerlinNoiseMap::l_calc_3d_map(), LuaPerlinNoiseMap::l_get_3d_map(), LuaPerlinNoiseMap::l_get_3d_map_flat(), perlinMap3D_PO(), TestNoise::testNoise3dBulk(), and TestNoise::testNoiseInvalidParams().

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perlinMap3D_PO()

float * Noise::perlinMap3D_PO ( float x, float xoff, float y, float yoff, float z, float zoff, float * persistence_map = NULL )

inline

References np, perlinMap3D(), and NoiseParams::spread.

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resizeNoiseBuf()

void Noise::resizeNoiseBuf ( bool is3d )

private

References errorstream, NoiseParams::lacunarity, noise_buf, np, NoiseParams::octaves, NoiseParams::spread, sx, sy, and sz.

Referenced by allocBuffers(), setOctaves(), and setSpreadFactor().

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setOctaves()

void Noise::setOctaves

(

int

octaves

)

References np, NoiseParams::octaves, resizeNoiseBuf(), and sz.

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setSize()

void Noise::setSize	(	u32	sx,
		u32	sy,
		u32	sz = 1 )

References allocBuffers(), sx, sy, and sz.

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setSpreadFactor()

void Noise::setSpreadFactor

(

v3f

spread

)

References np, resizeNoiseBuf(), NoiseParams::spread, and sz.

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updateResults()

void Noise::updateResults ( float g, float * gmap, const float * persistence_map, size_t bufsize )

private

References NoiseParams::flags, gradient_buf, NOISE_FLAG_ABSVALUE, np, and result.

Referenced by perlinMap2D(), and perlinMap3D().

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Member Data Documentation

gradient_buf

float* Noise::gradient_buf = nullptr

Referenced by ~Noise(), allocBuffers(), gradientMap2D(), gradientMap3D(), and updateResults().

noise_buf

float* Noise::noise_buf = nullptr

Referenced by ~Noise(), allocBuffers(), gradientMap2D(), gradientMap3D(), and resizeNoiseBuf().

np

NoiseParams Noise::np

Referenced by Noise(), MapgenV7::baseTerrainLevelAtPoint(), MapgenV6::baseTerrainLevelFromNoise(), MapgenV7::getMountainTerrainAtPoint(), MapgenCarpathian::getSpawnLevelAtPoint(), MapgenFlat::getSpawnLevelAtPoint(), MapgenFractal::getSpawnLevelAtPoint(), MapgenV5::getSpawnLevelAtPoint(), MapgenV7::getSpawnLevelAtPoint(), MapgenValleys::getSpawnLevelAtPoint(), gradientMap2D(), gradientMap3D(), LuaPerlinNoiseMap::packIn(), perlinMap2D(), perlinMap2D_PO(), perlinMap3D(), perlinMap3D_PO(), resizeNoiseBuf(), setOctaves(), setSpreadFactor(), and updateResults().

persist_buf

float* Noise::persist_buf = nullptr

Referenced by ~Noise(), allocBuffers(), perlinMap2D(), and perlinMap3D().

result

float* Noise::result = nullptr

Referenced by BiomeGenOriginal::BiomeGenOriginal(), ~Noise(), allocBuffers(), MapgenV6::baseTerrainLevelFromMap(), MapgenV7::baseTerrainLevelFromMap(), BiomeGenOriginal::calcBiomeNoise(), OreBlob::generate(), OrePuff::generate(), OreSheet::generate(), OreStratum::generate(), OreVein::generate(), MapgenV5::generateBaseTerrain(), MapgenBasic::generateBiomes(), CavernsNoise::generateCaverns(), CavesNoiseIntersection::generateCaves(), MapgenCarpathian::generateTerrain(), MapgenFlat::generateTerrain(), MapgenFractal::generateTerrain(), MapgenV7::generateTerrain(), MapgenValleys::generateTerrain(), MapgenV6::getBiome(), BiomeGenOriginal::getBiomeAtIndex(), BiomeGenOriginal::getBiomes(), MapgenV7::getFloatlandTerrainFromMap(), MapgenV6::getHaveBeach(), MapgenV6::getHumidity(), MapgenV7::getMountainTerrainFromMap(), MapgenV6::getMudAmount(), MapgenV7::getRiverChannelFromMap(), LuaPerlinNoiseMap::l_get_2d_map(), LuaPerlinNoiseMap::l_get_2d_map_flat(), LuaPerlinNoiseMap::l_get_3d_map(), LuaPerlinNoiseMap::l_get_3d_map_flat(), LuaPerlinNoiseMap::l_get_map_slice(), perlinMap2D(), perlinMap3D(), and updateResults().

seed

s32 Noise::seed

Referenced by Noise(), OreBlob::generate(), OrePuff::generate(), OreSheet::generate(), gradientMap2D(), gradientMap3D(), LuaPerlinNoiseMap::packIn(), perlinMap2D(), and perlinMap3D().

sx

u32 Noise::sx

Referenced by Noise(), allocBuffers(), gradientMap2D(), gradientMap3D(), LuaPerlinNoiseMap::l_get_2d_map(), LuaPerlinNoiseMap::l_get_2d_map_flat(), LuaPerlinNoiseMap::l_get_3d_map(), LuaPerlinNoiseMap::l_get_3d_map_flat(), LuaPerlinNoiseMap::l_get_map_slice(), LuaPerlinNoiseMap::packIn(), perlinMap2D(), perlinMap3D(), resizeNoiseBuf(), and setSize().

sy

u32 Noise::sy

Referenced by Noise(), allocBuffers(), gradientMap2D(), gradientMap3D(), LuaPerlinNoiseMap::l_get_2d_map(), LuaPerlinNoiseMap::l_get_2d_map_flat(), LuaPerlinNoiseMap::l_get_3d_map(), LuaPerlinNoiseMap::l_get_3d_map_flat(), LuaPerlinNoiseMap::l_get_map_slice(), LuaPerlinNoiseMap::packIn(), perlinMap2D(), perlinMap3D(), resizeNoiseBuf(), and setSize().

sz

u32 Noise::sz

Referenced by Noise(), allocBuffers(), gradientMap3D(), LuaPerlinNoiseMap::is3D(), LuaPerlinNoiseMap::l_get_3d_map(), LuaPerlinNoiseMap::l_get_3d_map_flat(), LuaPerlinNoiseMap::l_get_map_slice(), LuaPerlinNoiseMap::packIn(), perlinMap3D(), resizeNoiseBuf(), setOctaves(), setSize(), and setSpreadFactor().

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The documentation for this class was generated from the following files:

• noise.h
• noise.cpp