/* $Id$ */ /* * This file is part of OpenTTD. * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. */ /** @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 HeightmapRotation { 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 */