McRogueFace/deps_windows/libtcod-1.23.1-x86_64-msvc/include/libtcod/heightmap.h

116 lines
5.4 KiB
C

/* BSD 3-Clause License
*
* Copyright © 2008-2022, Jice and the libtcod contributors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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_HEIGHTMAP_H
#define _TCOD_HEIGHTMAP_H
#include "mersenne_types.h"
#include "noise.h"
#include "portability.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
int w, h;
float* __restrict values;
} TCOD_heightmap_t;
TCODLIB_API TCOD_heightmap_t* TCOD_heightmap_new(int w, int h);
TCODLIB_API void TCOD_heightmap_delete(TCOD_heightmap_t* hm);
TCODLIB_API float TCOD_heightmap_get_value(const TCOD_heightmap_t* hm, int x, int y);
TCODLIB_API float TCOD_heightmap_get_interpolated_value(const TCOD_heightmap_t* hm, float x, float y);
TCODLIB_API void TCOD_heightmap_set_value(TCOD_heightmap_t* hm, int x, int y, float value);
TCODLIB_API float TCOD_heightmap_get_slope(const TCOD_heightmap_t* hm, int x, int y);
TCODLIB_API void TCOD_heightmap_get_normal(const TCOD_heightmap_t* hm, float x, float y, float n[3], float waterLevel);
TCODLIB_API int TCOD_heightmap_count_cells(const TCOD_heightmap_t* hm, float min, float max);
TCODLIB_API bool TCOD_heightmap_has_land_on_border(const TCOD_heightmap_t* hm, float waterLevel);
TCODLIB_API void TCOD_heightmap_get_minmax(const TCOD_heightmap_t* hm, float* min, float* max);
TCODLIB_API void TCOD_heightmap_copy(const TCOD_heightmap_t* hm_source, TCOD_heightmap_t* hm_dest);
TCODLIB_API void TCOD_heightmap_add(TCOD_heightmap_t* hm, float value);
TCODLIB_API void TCOD_heightmap_scale(TCOD_heightmap_t* hm, float value);
TCODLIB_API void TCOD_heightmap_clamp(TCOD_heightmap_t* hm, float min, float max);
TCODLIB_API void TCOD_heightmap_normalize(TCOD_heightmap_t* hm, float min, float max);
TCODLIB_API void TCOD_heightmap_clear(TCOD_heightmap_t* hm);
TCODLIB_API void TCOD_heightmap_lerp_hm(
const TCOD_heightmap_t* hm1, const TCOD_heightmap_t* hm2, TCOD_heightmap_t* out, float coef);
TCODLIB_API void TCOD_heightmap_add_hm(const TCOD_heightmap_t* hm1, const TCOD_heightmap_t* hm2, TCOD_heightmap_t* out);
TCODLIB_API void TCOD_heightmap_multiply_hm(
const TCOD_heightmap_t* hm1, const TCOD_heightmap_t* hm2, TCOD_heightmap_t* out);
TCODLIB_API void TCOD_heightmap_add_hill(TCOD_heightmap_t* hm, float hx, float hy, float h_radius, float h_height);
TCODLIB_API void TCOD_heightmap_dig_hill(TCOD_heightmap_t* hm, float hx, float hy, float h_radius, float h_height);
TCODLIB_API void TCOD_heightmap_dig_bezier(
TCOD_heightmap_t* hm, int px[4], int py[4], float startRadius, float startDepth, float endRadius, float endDepth);
TCODLIB_API void TCOD_heightmap_rain_erosion(
TCOD_heightmap_t* hm, int nbDrops, float erosionCoef, float sedimentationCoef, TCOD_Random* rnd);
/* TCODLIB_API void TCOD_heightmap_heat_erosion(TCOD_heightmap_t *hm, int nbPass,float minSlope,float erosionCoef,float
* sedimentationCoef,TCOD_Random* rnd); */
TCODLIB_API void TCOD_heightmap_kernel_transform(
TCOD_heightmap_t* hm,
int kernel_size,
const int* dx,
const int* dy,
const float* weight,
float minLevel,
float maxLevel);
TCODLIB_API void TCOD_heightmap_add_voronoi(
TCOD_heightmap_t* hm, int nbPoints, int nbCoef, const float* coef, TCOD_Random* rnd);
TCODLIB_API void TCOD_heightmap_mid_point_displacement(TCOD_heightmap_t* hm, TCOD_Random* rnd, float roughness);
TCODLIB_API void TCOD_heightmap_add_fbm(
TCOD_heightmap_t* hm,
TCOD_noise_t noise,
float mul_x,
float mul_y,
float add_x,
float add_y,
float octaves,
float delta,
float scale);
TCODLIB_API void TCOD_heightmap_scale_fbm(
TCOD_heightmap_t* hm,
TCOD_noise_t noise,
float mul_x,
float mul_y,
float add_x,
float add_y,
float octaves,
float delta,
float scale);
TCOD_DEPRECATED("This function does nothing and will be removed.")
TCODLIB_API void TCOD_heightmap_islandify(TCOD_heightmap_t* hm, float seaLevel, TCOD_Random* rnd);
#ifdef __cplusplus
}
#endif
#endif