/* Minetest Copyright (C) 2010-2013 celeron55, Perttu Ahola This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This program 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "mapgen_indev.h" #include "constants.h" #include "log.h" /////////////////// Mapgen Indev perlin noise default values NoiseIndevParams nparams_indev_def_terrain_base (-AVERAGE_MUD_AMOUNT, 20.0, v3f(250.0, 250.0, 250.0), 82341, 5, 0.6, 1); NoiseIndevParams nparams_indev_def_terrain_higher (20.0, 16.0, v3f(500.0, 500.0, 500.0), 85039, 5, 0.6, 1); NoiseIndevParams nparams_indev_def_steepness (0.85, 0.5, v3f(125.0, 125.0, 125.0), -932, 5, 0.7, 1); NoiseIndevParams nparams_indev_def_mud (AVERAGE_MUD_AMOUNT, 2.0, v3f(200.0, 200.0, 200.0), 91013, 3, 0.55, 1); /////////////////////////////////////////////////////////////////////////////// void NoiseIndev::init(NoiseIndevParams *np, int seed, int sx, int sy, int sz) { Noise::init((NoiseParams*)np, seed, sx, sy, sz); this->npindev = np; } NoiseIndev::NoiseIndev(NoiseIndevParams *np, int seed, int sx, int sy) : Noise(np, seed, sx, sy) { init(np, seed, sx, sy, 1); } NoiseIndev::NoiseIndev(NoiseIndevParams *np, int seed, int sx, int sy, int sz) : Noise(np, seed, sx, sy, sz) { init(np, seed, sx, sy, sz); } float farscale(float scale, float x, float y, float z) { return ( 1 + ( 1 - (MAP_GENERATION_LIMIT * 3 - (fabs(x) + fabs(y) + fabs(z)) ) / (MAP_GENERATION_LIMIT * 3) ) * (scale - 1) ); } void NoiseIndev::transformNoiseMapFarScale(float xx, float yy, float zz) { // more correct use distantion from 0,0,0 via pow, but + is faster //float farscale = ( 1 + ( 1 - (MAP_GENERATION_LIMIT * 3 - (fabs(xx) + fabs(yy) + fabs(zz)) ) / (MAP_GENERATION_LIMIT * 3) ) * ((npindev)->farscale - 1) ); // dstream << "TNM rs=" << farscale << " from=" << (npindev)->farscale << " x=" << xx << " y=" << yy <<" z=" << zz << std::endl; int i = 0; for (int z = 0; z != sz; z++) { for (int y = 0; y != sy; y++) { for (int x = 0; x != sx; x++) { //result[i] = result[i] * npindev->scale * farscale + npindev->offset; result[i] = result[i] * npindev->scale * farscale(npindev->farscale,xx,yy,zz) + npindev->offset; i++; } } } } MapgenIndev::MapgenIndev(int mapgenid, MapgenIndevParams *params) : MapgenV6(mapgenid, params) { noiseindev_terrain_base = new NoiseIndev(params->npindev_terrain_base, seed, csize.X, csize.Y); noiseindev_terrain_higher = new NoiseIndev(params->npindev_terrain_higher, seed, csize.X, csize.Y); noiseindev_steepness = new NoiseIndev(params->npindev_steepness, seed, csize.X, csize.Y); // noise_height_select = new Noise(params->np_height_select, seed, csize.X, csize.Y); // noise_trees = new Noise(params->np_trees, seed, csize.X, csize.Y); noiseindev_mud = new NoiseIndev(params->npindev_mud, seed, csize.X, csize.Y); // noise_beach = new Noise(params->np_beach, seed, csize.X, csize.Y); // noise_biome = new Noise(params->np_biome, seed, csize.X, csize.Y); } MapgenIndev::~MapgenIndev() { delete noiseindev_terrain_base; delete noiseindev_terrain_higher; delete noiseindev_steepness; //delete noise_height_select; //delete noise_trees; delete noiseindev_mud; //delete noise_beach; //delete noise_biome; } void MapgenIndev::calculateNoise() { int x = node_min.X; int y = node_min.Y; int z = node_min.Z; // Need to adjust for the original implementation's +.5 offset... if (!(flags & MG_FLAT)) { noiseindev_terrain_base->perlinMap2D( x + 0.5 * noiseindev_terrain_base->npindev->spread.X, z + 0.5 * noiseindev_terrain_base->npindev->spread.Z); noiseindev_terrain_base->transformNoiseMapFarScale(x, y, z); //noise_terrain_base->transformNoiseMap(); noiseindev_terrain_higher->perlinMap2D( x + 0.5 * noiseindev_terrain_higher->npindev->spread.X, z + 0.5 * noiseindev_terrain_higher->npindev->spread.Z); noiseindev_terrain_higher->transformNoiseMapFarScale(x, y, z); //noise_terrain_higher->transformNoiseMap(); noiseindev_steepness->perlinMap2D( x + 0.5 * noiseindev_steepness->npindev->spread.X, z + 0.5 * noiseindev_steepness->npindev->spread.Z); noiseindev_steepness->transformNoiseMapFarScale(x, y, z); noise_height_select->perlinMap2D( x + 0.5 * noise_height_select->np->spread.X, z + 0.5 * noise_height_select->np->spread.Z); } if (!(flags & MG_FLAT)) { noiseindev_mud->perlinMap2D( x + 0.5 * noiseindev_mud->npindev->spread.X, z + 0.5 * noiseindev_mud->npindev->spread.Z); noiseindev_mud->transformNoiseMapFarScale(x, y, z); } noise_beach->perlinMap2D( x + 0.2 * noise_beach->np->spread.X, z + 0.7 * noise_beach->np->spread.Z); noise_biome->perlinMap2D( x + 0.6 * noise_biome->np->spread.X, z + 0.2 * noise_biome->np->spread.Z); } bool MapgenIndevParams::readParams(Settings *settings) { freq_desert = settings->getFloat("mgv6_freq_desert"); freq_beach = settings->getFloat("mgv6_freq_beach"); npindev_terrain_base = settings->getNoiseIndevParams("mgindev_np_terrain_base"); npindev_terrain_higher = settings->getNoiseIndevParams("mgindev_np_terrain_higher"); npindev_steepness = settings->getNoiseIndevParams("mgindev_np_steepness"); np_height_select = settings->getNoiseParams("mgv6_np_height_select"); np_trees = settings->getNoiseParams("mgv6_np_trees"); npindev_mud = settings->getNoiseIndevParams("mgindev_np_mud"); np_beach = settings->getNoiseParams("mgv6_np_beach"); np_biome = settings->getNoiseParams("mgv6_np_biome"); np_cave = settings->getNoiseParams("mgv6_np_cave"); bool success = npindev_terrain_base && npindev_terrain_higher && npindev_steepness && np_height_select && np_trees && npindev_mud && np_beach && np_biome && np_cave; return success; } void MapgenIndevParams::writeParams(Settings *settings) { settings->setFloat("mgv6_freq_desert", freq_desert); settings->setFloat("mgv6_freq_beach", freq_beach); settings->setNoiseIndevParams("mgindev_np_terrain_base", npindev_terrain_base); settings->setNoiseIndevParams("mgindev_np_terrain_higher", npindev_terrain_higher); settings->setNoiseIndevParams("mgindev_np_steepness", npindev_steepness); settings->setNoiseParams("mgv6_np_height_select", np_height_select); settings->setNoiseParams("mgv6_np_trees", np_trees); settings->setNoiseIndevParams("mgindev_np_mud", npindev_mud); settings->setNoiseParams("mgv6_np_beach", np_beach); settings->setNoiseParams("mgv6_np_biome", np_biome); settings->setNoiseParams("mgv6_np_cave", np_cave); } float MapgenIndev::baseTerrainLevelFromNoise(v2s16 p) { if (flags & MG_FLAT) return water_level; float terrain_base = NoisePerlin2DPosOffset(noiseindev_terrain_base->npindev, p.X, 0.5, p.Y, 0.5, seed); float terrain_higher = NoisePerlin2DPosOffset(noiseindev_terrain_higher->npindev, p.X, 0.5, p.Y, 0.5, seed); float steepness = NoisePerlin2DPosOffset(noiseindev_steepness->npindev, p.X, 0.5, p.Y, 0.5, seed); float height_select = NoisePerlin2DNoTxfmPosOffset(noise_height_select->np, p.X, 0.5, p.Y, 0.5, seed); return baseTerrainLevel(terrain_base, terrain_higher, steepness, height_select); } float MapgenIndev::baseTerrainLevelFromMap(int index) { if (flags & MG_FLAT) return water_level; float terrain_base = noiseindev_terrain_base->result[index]; float terrain_higher = noiseindev_terrain_higher->result[index]; float steepness = noiseindev_steepness->result[index]; float height_select = noise_height_select->result[index]; return baseTerrainLevel(terrain_base, terrain_higher, steepness, height_select); } float MapgenIndev::getMudAmount(int index) { if (flags & MG_FLAT) return AVERAGE_MUD_AMOUNT; /*return ((float)AVERAGE_MUD_AMOUNT + 2.0 * noise2d_perlin( 0.5+(float)p.X/200, 0.5+(float)p.Y/200, seed+91013, 3, 0.55));*/ return noiseindev_mud->result[index]; } void MapgenIndev::defineCave(Cave & cave, PseudoRandom ps, v3s16 node_min, bool large_cave) { cave.min_tunnel_diameter = 2; cave.max_tunnel_diameter = ps.range(2,6); cave.dswitchint = ps.range(1,14); //cave.tunnel_routepoints = 0; //cave.part_max_length_rs = 0; cave.flooded = large_cave && ps.range(0,4); if(large_cave){ cave.part_max_length_rs = ps.range(2,4); //dstream<<"try:"<