Michaël Lemaire
c0f945fb27
git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@511 b1fd45b6-86a6-48da-8261-f70d1f35bdcc
79 lines
3.3 KiB
C
79 lines
3.3 KiB
C
#ifndef _PAYSAGES_NOISE_H_
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#define _PAYSAGES_NOISE_H_
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#include "tools/pack.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum
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{
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NOISE_FUNCTION_SIMPLEX,
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NOISE_FUNCTION_PERLIN,
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NOISE_FUNCTION_NAIVE
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} NoiseFunctionAlgorithm;
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typedef struct
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{
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NoiseFunctionAlgorithm algorithm;
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double ridge_factor; /* -0.5;0.5 */
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double curve_factor; /* -1.0;1.0 */
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} NoiseFunction;
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typedef struct
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{
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double wavelength;
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double amplitude;
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double minvalue;
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double xoffset;
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double yoffset;
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double zoffset;
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} NoiseLevel;
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typedef struct NoiseGenerator NoiseGenerator;
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void noiseInit();
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void noiseQuit();
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void noiseSave(PackStream* stream);
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void noiseLoad(PackStream* stream);
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NoiseGenerator* noiseCreateGenerator();
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void noiseDeleteGenerator(NoiseGenerator* generator);
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void noiseSaveGenerator(PackStream* stream, NoiseGenerator* generator);
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void noiseLoadGenerator(PackStream* stream, NoiseGenerator* generator);
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void noiseCopy(NoiseGenerator* source, NoiseGenerator* destination);
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void noiseValidate(NoiseGenerator* generator);
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void noiseRandomizeOffsets(NoiseGenerator* generator);
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NoiseFunction noiseGetFunction(NoiseGenerator* generator);
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void noiseSetFunction(NoiseGenerator* generator, NoiseFunction* function);
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void noiseSetFunctionParams(NoiseGenerator* generator, NoiseFunctionAlgorithm algorithm, double ridge_factor, double curve_factor);
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void noiseForceValue(NoiseGenerator* generator, double value);
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void noiseGetRange(NoiseGenerator* generator, double* minvalue, double* maxvalue);
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int noiseGetLevelCount(NoiseGenerator* generator);
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void noiseClearLevels(NoiseGenerator* generator);
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void noiseAddLevel(NoiseGenerator* generator, NoiseLevel level, int protect_offsets);
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void noiseAddLevelSimple(NoiseGenerator* generator, double scaling, double minvalue, double maxvalue);
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void noiseAddLevels(NoiseGenerator* generator, int level_count, NoiseLevel start_level, double scaling_factor, double amplitude_factor, double center_factor);
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void noiseAddLevelsSimple(NoiseGenerator* generator, int level_count, double scaling, double minvalue, double maxvalue, double center_factor);
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void noiseRemoveLevel(NoiseGenerator* generator, int level);
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int noiseGetLevel(NoiseGenerator* generator, int level, NoiseLevel* params);
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void noiseSetLevel(NoiseGenerator* generator, int index, NoiseLevel level, int protect_offsets);
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void noiseSetLevelSimple(NoiseGenerator* generator, int index, double scaling, double minvalue, double maxvalue);
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void noiseNormalizeAmplitude(NoiseGenerator* generator, double minvalue, double maxvalue, int adjust_scaling);
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double noiseGet1DLevel(NoiseGenerator* generator, int level, double x);
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double noiseGet1DTotal(NoiseGenerator* generator, double x);
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double noiseGet1DDetail(NoiseGenerator* generator, double x, double detail);
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double noiseGet2DLevel(NoiseGenerator* generator, int level, double x, double y);
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double noiseGet2DTotal(NoiseGenerator* generator, double x, double y);
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double noiseGet2DDetail(NoiseGenerator* generator, double x, double y, double detail);
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double noiseGet3DLevel(NoiseGenerator* generator, int level, double x, double y, double z);
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double noiseGet3DTotal(NoiseGenerator* generator, double x, double y, double z);
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double noiseGet3DDetail(NoiseGenerator* generator, double x, double y, double z, double detail);
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#ifdef __cplusplus
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}
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#endif
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#endif
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