Function LoadHeightmap

src/heightmap.cpp:517–536

* Load a heightmap from file and change the map in its current dimensions * to a landscape representing the heightmap. * It converts pixels to height. The brighter, the higher. * @param dft Type of image file. * @param filename of the heightmap file to be imported */

 * @param filename of the heightmap file to be imported
 */
bool LoadHeightmap(DetailedFileType dft, std::string_view filename)
{
	uint x, y;
	std::vector<uint8_t> map;

	if (!ReadHeightMap(dft, filename, &x, &y, &map)) {
		return false;
	}

	GreyscaleToMapHeights(x, y, map);

	FixSlopes();

	/* If all map borders are water, we will draw infinite water. */
	_settings_game.construction.freeform_edges = !IsMapSurroundedByWater();

	MarkWholeScreenDirty();

	return true;
}

/**
 * Make an empty world where all tiles are of height 'tile_height'.