noise.h
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/*
* libtcod 1.5.0
* Copyright (c) 2008,2009,2010 Jice
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The name of Jice may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Jice ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Jice BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _TCOD_PERLIN_H
#define _TCOD_PERLIN_H
typedef void *TCOD_noise_t;
#define TCOD_NOISE_MAX_OCTAVES 128
#define TCOD_NOISE_MAX_DIMENSIONS 4
#define TCOD_NOISE_DEFAULT_HURST 0.5f
#define TCOD_NOISE_DEFAULT_LACUNARITY 2.0f
TCODLIB_API TCOD_noise_t TCOD_noise_new(int dimensions, float hurst, float lacunarity);
// basic perlin noise
TCODLIB_API float TCOD_noise_perlin( TCOD_noise_t noise, float *f );
// fractional brownian motion (fractal sum of perlin noises)
TCODLIB_API float TCOD_noise_fbm_perlin( TCOD_noise_t noise, float *f, float octaves );
// turbulence (fractal sum of abs(perlin noise) )
TCODLIB_API float TCOD_noise_turbulence_perlin( TCOD_noise_t noise, float *f, float octaves );
// simplex noise
TCODLIB_API float TCOD_noise_simplex( TCOD_noise_t noise, float *f );
// fractional brownian motion (fractal sum of simplex noises)
TCODLIB_API float TCOD_noise_fbm_simplex( TCOD_noise_t noise, float *f, float octaves );
// turbulence (fractal sum of abs(simplex noise) )
TCODLIB_API float TCOD_noise_turbulence_simplex( TCOD_noise_t noise, float *f, float octaves );
// wavelet noise
TCODLIB_API float TCOD_noise_wavelet (TCOD_noise_t noise, float *f);
// fractional brownian motion (fractal sum of wavelet noises)
TCODLIB_API float TCOD_noise_fbm_wavelet(TCOD_noise_t noise, float *f, float octaves);
// turbulence (fractal sum of abs(simplex noise) )
TCODLIB_API float TCOD_noise_turbulence_wavelet(TCOD_noise_t noise, float *f, float octaves);
TCODLIB_API void TCOD_noise_delete(TCOD_noise_t noise);
#endif