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/* $Id$ */
/** @file heightmap.h Functions related to creating heightmaps from files. */
#ifndef HEIGHTMAP_H
#define HEIGHTMAP_H
/*
* Order of these enums has to be the same as in lang/english.txt
* Otherwise you will get inconsistent behaviour.
*/
enum {
HM_COUNTER_CLOCKWISE, ///< Rotate the map counter clockwise 45 degrees
HM_CLOCKWISE, ///< Rotate the map clockwise 45 degrees
};
/**
* Get the dimensions of a heightmap.
* @param filename to query
* @param x dimension x
* @param y dimension y
* @return Returns false if loading of the image failed.
*/
bool GetHeightmapDimensions(char *filename, uint *x, uint *y);
/**
* Load a heightmap from file and change the map in his current dimensions
* to a landscape representing the heightmap.
* It converts pixels to height. The brighter, the higher.
* @param filename of the heighmap file to be imported
*/
void LoadHeightmap(char *filename);
/**
* Make an empty world where all tiles are of height 'tile_height'.
* @param tile_height of the desired new empty world
*/
void FlatEmptyWorld(byte tile_height);
/**
* This function takes care of the fact that land in OpenTTD can never differ
* more than 1 in height
*/
void FixSlopes();
#endif /* HEIGHTMAP_H */
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