Terrain heightmap module. More...

#include <stdint.h>
#include "mersenne_types.h"
#include "noise.h"
#include "portability.h"

Classes
struct	TCOD_heightmap_t
	A contigious 2D array of float values. More...

Functions
static bool	TCOD_heightmap_is_valid (const TCOD_heightmap_t *heightmap)
	Return true if `heightmap` is valid.

static bool	TCOD_heightmap_in_bounds (const TCOD_heightmap_t *heightmap, int x, int y)
	Return true if `x`,`y` are valid and accessible coordinates for this `heightmap`

static float	TCOD_heightmap_get_value (const TCOD_heightmap_t *heightmap, int x, int y)
	Return the value at `x`,`y` from `heightmap`, or `0.0` for out-of-bounds coordinates.

static void	TCOD_heightmap_set_value (TCOD_heightmap_t *heightmap, int x, int y, float value)
	Set `x`,`y` on `heightmap` to `value`, out-of-bounds coordinates are silently ignored.

TCOD_heightmap_t *	TCOD_heightmap_new (int w, int h)

void	TCOD_heightmap_delete (TCOD_heightmap_t *hm)

float	TCOD_heightmap_get_interpolated_value (const TCOD_heightmap_t *hm, float x, float y)

float	TCOD_heightmap_get_slope (const TCOD_heightmap_t *hm, int x, int y)

void	TCOD_heightmap_get_normal (const TCOD_heightmap_t *hm, float x, float y, float n[3], float waterLevel)

int	TCOD_heightmap_count_cells (const TCOD_heightmap_t *hm, float min, float max)

bool	TCOD_heightmap_has_land_on_border (const TCOD_heightmap_t *hm, float waterLevel)

void	TCOD_heightmap_get_minmax (const TCOD_heightmap_t heightmap, float min_out, float *max_out)
	Output the highest and lowest values in `heightmap` to `min` and `max`

void	TCOD_heightmap_copy (const TCOD_heightmap_t hm_source, TCOD_heightmap_t hm_dest)

void	TCOD_heightmap_add (TCOD_heightmap_t *hm, float value)

void	TCOD_heightmap_scale (TCOD_heightmap_t *hm, float value)

void	TCOD_heightmap_clamp (TCOD_heightmap_t *hm, float min, float max)

void	TCOD_heightmap_normalize (TCOD_heightmap_t *hm, float min, float max)

void	TCOD_heightmap_clear (TCOD_heightmap_t *hm)

void	TCOD_heightmap_lerp_hm (const TCOD_heightmap_t hm1, const TCOD_heightmap_t hm2, TCOD_heightmap_t *out, float coef)

void	TCOD_heightmap_add_hm (const TCOD_heightmap_t hm1, const TCOD_heightmap_t hm2, TCOD_heightmap_t *out)

void	TCOD_heightmap_multiply_hm (const TCOD_heightmap_t hm1, const TCOD_heightmap_t hm2, TCOD_heightmap_t *out)

void	TCOD_heightmap_add_hill (TCOD_heightmap_t *hm, float hx, float hy, float h_radius, float h_height)

void	TCOD_heightmap_dig_hill (TCOD_heightmap_t *hm, float hx, float hy, float h_radius, float h_height)

void	TCOD_heightmap_dig_bezier (TCOD_heightmap_t *hm, int px[4], int py[4], float startRadius, float startDepth, float endRadius, float endDepth)

void	TCOD_heightmap_rain_erosion (TCOD_heightmap_t hm, int nbDrops, float erosionCoef, float sedimentationCoef, TCOD_Random rnd)

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)

void	TCOD_heightmap_threshold_mask (const TCOD_heightmap_t hm, uint8_t mask, float minLevel, float maxLevel)
	Generate a mask from heightmap values within a threshold range.

void	TCOD_heightmap_kernel_transform_out (const TCOD_heightmap_t hm_src, TCOD_heightmap_t hm_dst, int kernel_size, const int dx, const int dy, const float weight, const uint8_t mask)
	Apply a sparse kernel convolution from source to destination heightmap.

void	TCOD_heightmap_add_voronoi (TCOD_heightmap_t hm, int nbPoints, int nbCoef, const float coef, TCOD_Random *rnd)

void	TCOD_heightmap_mid_point_displacement (TCOD_heightmap_t hm, TCOD_Random rnd, float roughness)

void	TCOD_heightmap_add_fbm (TCOD_heightmap_t hm, TCOD_Noise noise, float mul_x, float mul_y, float add_x, float add_y, float octaves, float delta, float scale)

void	TCOD_heightmap_scale_fbm (TCOD_heightmap_t hm, TCOD_Noise noise, float mul_x, float mul_y, float add_x, float add_y, float octaves, float delta, float scale)

void	TCOD_heightmap_islandify (TCOD_heightmap_t hm, float seaLevel, TCOD_Random rnd)

Detailed Description

Terrain heightmap module.

Classes

Functions

Detailed Description