#ifndef _PAYSAGES_TERRAIN_PRIVATE_H_
#define _PAYSAGES_TERRAIN_PRIVATE_H_

#include "public.h"

typedef struct
{
    struct {
        int xstart;
        int xend;
        int xsize;
        int zstart;
        int zend;
        int zsize;
    } rect;
    double* data;
} TerrainHeightMapChunk;

struct TerrainHeightMap
{
    TerrainDefinition* terrain;
    int fixed_count;
    TerrainHeightMapChunk* fixed_data;
    int floating_used;
    TerrainHeightMapChunk floating_data;
};

TerrainHeightMap* terrainHeightMapCreate(TerrainDefinition* definition);
void terrainHeightmapDelete(TerrainHeightMap* heightmap);
void terrainHeightmapCopy(TerrainHeightMap* source, TerrainHeightMap* destination);
void terrainHeightmapSave(PackStream* stream, TerrainHeightMap* heightmap);
void terrainHeightmapLoad(PackStream* stream, TerrainHeightMap* heightmap);
int terrainHeightmapGetHeight(TerrainHeightMap* heightmap, double x, double z, double* result);

#endif