X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fmapgen_v7.cpp;h=e6801a24b75293ad38db2838cbb8894274803675;hb=6151f7bc4b32c2576035bd3381bd81ae287c57eb;hp=443aea2815b19bf8eda4bbc61ac97331e0a14e5c;hpb=ad789be45b1ec1333f5908b89efd85f5b29fb940;p=dragonfireclient.git diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp index 443aea281..e6801a24b 100644 --- a/src/mapgen_v7.cpp +++ b/src/mapgen_v7.cpp @@ -1,6 +1,7 @@ /* Minetest -Copyright (C) 2010-2013 kwolekr, Ryan Kwolek +Copyright (C) 2010-2015 kwolekr, Ryan Kwolek +Copyright (C) 2010-2015 paramat, Matt Gregory 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 @@ -27,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "content_sao.h" #include "nodedef.h" #include "voxelalgorithms.h" -#include "profiler.h" +//#include "profiler.h" // For TimeTaker #include "settings.h" // For g_settings #include "emerge.h" #include "dungeongen.h" @@ -45,11 +46,12 @@ FlagDesc flagdesc_mapgen_v7[] = { {NULL, 0} }; + /////////////////////////////////////////////////////////////////////////////// MapgenV7::MapgenV7(int mapgenid, MapgenParams *params, EmergeManager *emerge) - : Mapgen(mapgenid, params, emerge) + : MapgenBasic(mapgenid, params, emerge) { this->m_emerge = emerge; this->bmgr = emerge->biomemgr; @@ -57,14 +59,18 @@ MapgenV7::MapgenV7(int mapgenid, MapgenParams *params, EmergeManager *emerge) //// amount of elements to skip for the next index //// for noise/height/biome maps (not vmanip) this->ystride = csize.X; - this->zstride = csize.X * (csize.Y + 2); + // 1-up 1-down overgeneration + this->zstride_1u1d = csize.X * (csize.Y + 2); + // 1-down overgeneration + this->zstride_1d = csize.X * (csize.Y + 1); - this->biomemap = new u8[csize.X * csize.Z]; - this->heightmap = new s16[csize.X * csize.Z]; + this->heightmap = new s16[csize.X * csize.Z]; this->ridge_heightmap = new s16[csize.X * csize.Z]; MapgenV7Params *sp = (MapgenV7Params *)params->sparams; - this->spflags = sp->spflags; + + this->spflags = sp->spflags; + this->cave_width = sp->cave_width; //// Terrain noise noise_terrain_base = new Noise(&sp->np_terrain_base, seed, csize.X, csize.Z); @@ -76,41 +82,43 @@ MapgenV7::MapgenV7(int mapgenid, MapgenParams *params, EmergeManager *emerge) noise_ridge_uwater = new Noise(&sp->np_ridge_uwater, seed, csize.X, csize.Z); //// 3d terrain noise + // 1-up 1-down overgeneration noise_mountain = new Noise(&sp->np_mountain, seed, csize.X, csize.Y + 2, csize.Z); noise_ridge = new Noise(&sp->np_ridge, seed, csize.X, csize.Y + 2, csize.Z); - noise_cave1 = new Noise(&sp->np_cave1, seed, csize.X, csize.Y + 2, csize.Z); - noise_cave2 = new Noise(&sp->np_cave2, seed, csize.X, csize.Y + 2, csize.Z); + // 1-down overgeneraion + noise_cave1 = new Noise(&sp->np_cave1, seed, csize.X, csize.Y + 1, csize.Z); + noise_cave2 = new Noise(&sp->np_cave2, seed, csize.X, csize.Y + 1, csize.Z); - //// Biome noise - noise_heat = new Noise(¶ms->np_biome_heat, seed, csize.X, csize.Z); - noise_humidity = new Noise(¶ms->np_biome_humidity, seed, csize.X, csize.Z); + // TODO(hmmmm): should we have a way to disable biomemanager biomes? + //// Initialize biome generator + biomegen = emerge->biomemgr->createBiomeGen( + BIOMEGEN_ORIGINAL, params->bparams, csize); + biomemap = biomegen->biomemap; //// Resolve nodes to be used - INodeDefManager *ndef = emerge->ndef; - - c_stone = ndef->getId("mapgen_stone"); - c_dirt = ndef->getId("mapgen_dirt"); - c_dirt_with_grass = ndef->getId("mapgen_dirt_with_grass"); - c_sand = ndef->getId("mapgen_sand"); - c_water_source = ndef->getId("mapgen_water_source"); - c_lava_source = ndef->getId("mapgen_lava_source"); - c_ice = ndef->getId("default:ice"); - c_cobble = ndef->getId("mapgen_cobble"); - c_desert_stone = ndef->getId("mapgen_desert_stone"); - c_mossycobble = ndef->getId("mapgen_mossycobble"); - c_sandbrick = ndef->getId("mapgen_sandstonebrick"); - c_stair_cobble = ndef->getId("mapgen_stair_cobble"); - c_stair_sandstone = ndef->getId("mapgen_stair_sandstone"); + c_stone = ndef->getId("mapgen_stone"); + c_water_source = ndef->getId("mapgen_water_source"); + c_lava_source = ndef->getId("mapgen_lava_source"); + c_desert_stone = ndef->getId("mapgen_desert_stone"); + c_ice = ndef->getId("mapgen_ice"); + c_sandstone = ndef->getId("mapgen_sandstone"); + + c_cobble = ndef->getId("mapgen_cobble"); + c_stair_cobble = ndef->getId("mapgen_stair_cobble"); + c_mossycobble = ndef->getId("mapgen_mossycobble"); + c_sandstonebrick = ndef->getId("mapgen_sandstonebrick"); + c_stair_sandstonebrick = ndef->getId("mapgen_stair_sandstonebrick"); + if (c_ice == CONTENT_IGNORE) c_ice = CONTENT_AIR; if (c_mossycobble == CONTENT_IGNORE) c_mossycobble = c_cobble; - if (c_sandbrick == CONTENT_IGNORE) - c_sandbrick = c_desert_stone; if (c_stair_cobble == CONTENT_IGNORE) c_stair_cobble = c_cobble; - if (c_stair_sandstone == CONTENT_IGNORE) - c_stair_sandstone = c_sandbrick; + if (c_sandstonebrick == CONTENT_IGNORE) + c_sandstonebrick = c_sandstone; + if (c_stair_sandstonebrick == CONTENT_IGNORE) + c_stair_sandstonebrick = c_sandstone; } @@ -128,36 +136,36 @@ MapgenV7::~MapgenV7() delete noise_cave1; delete noise_cave2; - delete noise_heat; - delete noise_humidity; + delete biomegen; delete[] ridge_heightmap; delete[] heightmap; - delete[] biomemap; } MapgenV7Params::MapgenV7Params() { - spflags = MGV7_MOUNTAINS | MGV7_RIDGES; - - np_terrain_base = NoiseParams(4, 70, v3f(300, 300, 300), 82341, 6, 0.7, 2.0); - np_terrain_alt = NoiseParams(4, 25, v3f(600, 600, 600), 5934, 5, 0.6, 2.0); - np_terrain_persist = NoiseParams(0.6, 0.1, v3f(500, 500, 500), 539, 3, 0.6, 2.0); - np_height_select = NoiseParams(-0.5, 1, v3f(250, 250, 250), 4213, 5, 0.69, 2.0); - np_filler_depth = NoiseParams(0, 1.2, v3f(150, 150, 150), 261, 4, 0.7, 2.0); - np_mount_height = NoiseParams(100, 30, v3f(500, 500, 500), 72449, 4, 0.6, 2.0); - np_ridge_uwater = NoiseParams(0, 1, v3f(500, 500, 500), 85039, 4, 0.6, 2.0); - np_mountain = NoiseParams(-0.6, 1, v3f(250, 350, 250), 5333, 5, 0.68, 2.0); - np_ridge = NoiseParams(0, 1, v3f(100, 100, 100), 6467, 4, 0.75, 2.0); - np_cave1 = NoiseParams(0, 12, v3f(100, 100, 100), 52534, 4, 0.5, 2.0); - np_cave2 = NoiseParams(0, 12, v3f(100, 100, 100), 10325, 4, 0.5, 2.0); + spflags = MGV7_MOUNTAINS | MGV7_RIDGES; + cave_width = 0.3; + + np_terrain_base = NoiseParams(4, 70, v3f(600, 600, 600), 82341, 5, 0.6, 2.0); + np_terrain_alt = NoiseParams(4, 25, v3f(600, 600, 600), 5934, 5, 0.6, 2.0); + np_terrain_persist = NoiseParams(0.6, 0.1, v3f(2000, 2000, 2000), 539, 3, 0.6, 2.0); + np_height_select = NoiseParams(-8, 16, v3f(500, 500, 500), 4213, 6, 0.7, 2.0); + np_filler_depth = NoiseParams(0, 1.2, v3f(150, 150, 150), 261, 3, 0.7, 2.0); + np_mount_height = NoiseParams(256, 112, v3f(1000, 1000, 1000), 72449, 3, 0.6, 2.0); + np_ridge_uwater = NoiseParams(0, 1, v3f(1000, 1000, 1000), 85039, 5, 0.6, 2.0); + np_mountain = NoiseParams(-0.6, 1, v3f(250, 350, 250), 5333, 5, 0.63, 2.0); + np_ridge = NoiseParams(0, 1, v3f(100, 100, 100), 6467, 4, 0.75, 2.0); + np_cave1 = NoiseParams(0, 12, v3f(96, 96, 96), 52534, 4, 0.5, 2.0); + np_cave2 = NoiseParams(0, 12, v3f(96, 96, 96), 10325, 4, 0.5, 2.0); } void MapgenV7Params::readParams(const Settings *settings) { - settings->getFlagStrNoEx("mgv7_spflags", spflags, flagdesc_mapgen_v7); + settings->getFlagStrNoEx("mgv7_spflags", spflags, flagdesc_mapgen_v7); + settings->getFloatNoEx("mgv7_cave_width", cave_width); settings->getNoiseParams("mgv7_np_terrain_base", np_terrain_base); settings->getNoiseParams("mgv7_np_terrain_alt", np_terrain_alt); @@ -175,7 +183,8 @@ void MapgenV7Params::readParams(const Settings *settings) void MapgenV7Params::writeParams(Settings *settings) const { - settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7, (u32)-1); + settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7, U32_MAX); + settings->setFloat("mgv7_cave_width", cave_width); settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base); settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt); @@ -191,10 +200,10 @@ void MapgenV7Params::writeParams(Settings *settings) const } -/////////////////////////////////////// +/////////////////////////////////////////////////////////////////////////////// -int MapgenV7::getGroundLevelAtPoint(v2s16 p) +int MapgenV7::getSpawnLevelAtPoint(v2s16 p) { // Base terrain calculation s16 y = baseTerrainLevelAtPoint(p.X, p.Y); @@ -202,22 +211,24 @@ int MapgenV7::getGroundLevelAtPoint(v2s16 p) // Ridge/river terrain calculation float width = 0.2; float uwatern = NoisePerlin2D(&noise_ridge_uwater->np, p.X, p.Y, seed) * 2; - // actually computing the depth of the ridge is much more expensive; - // if inside a river, simply guess + // if inside a river this is an unsuitable spawn point if (fabs(uwatern) <= width) - return water_level - 10; + return MAX_MAP_GENERATION_LIMIT; // Mountain terrain calculation - int iters = 128; // don't even bother iterating more than 128 times.. + int iters = 128; while (iters--) { - //current point would have been air - if (!getMountainTerrainAtPoint(p.X, y, p.Y)) - return y; - + if (!getMountainTerrainAtPoint(p.X, y + 1, p.Y)) { // Air, y is ground level + if (y <= water_level || y > water_level + 16) + return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point + else + return y; + } y++; } - return y; + // Unsuitable spawn point, no ground surface found + return MAX_MAP_GENERATION_LIMIT; } @@ -227,11 +238,11 @@ void MapgenV7::makeChunk(BlockMakeData *data) assert(data->vmanip); assert(data->nodedef); assert(data->blockpos_requested.X >= data->blockpos_min.X && - data->blockpos_requested.Y >= data->blockpos_min.Y && - data->blockpos_requested.Z >= data->blockpos_min.Z); + data->blockpos_requested.Y >= data->blockpos_min.Y && + data->blockpos_requested.Z >= data->blockpos_min.Z); assert(data->blockpos_requested.X <= data->blockpos_max.X && - data->blockpos_requested.Y <= data->blockpos_max.Y && - data->blockpos_requested.Z <= data->blockpos_max.Z); + data->blockpos_requested.Y <= data->blockpos_max.Y && + data->blockpos_requested.Z <= data->blockpos_max.Z); this->generating = true; this->vm = data->vmanip; @@ -250,21 +261,22 @@ void MapgenV7::makeChunk(BlockMakeData *data) // Make some noise calculateNoise(); - // Generate base terrain, mountains, and ridges with initial heightmaps + // Generate terrain and ridges with initial heightmaps s16 stone_surface_max_y = generateTerrain(); - // Create heightmap - updateHeightmap(node_min, node_max); + if (spflags & MGV7_RIDGES) + generateRidgeTerrain(); - // Create biomemap at heightmap surface - bmgr->calcBiomes(csize.X, csize.Z, noise_heat->result, - noise_humidity->result, heightmap, biomemap); + // Update heightmap to include mountain terrain + updateHeightmap(node_min, node_max); - // Actually place the biome-specific nodes - bool desert_stone = generateBiomes(noise_heat->result, noise_humidity->result); + // Init biome generator, place biome-specific nodes, and build biomemap + biomegen->calcBiomeNoise(node_min); + biomegen->getBiomes(heightmap); + MgStoneType stone_type = generateBiomes(); if (flags & MG_CAVES) - generateCaves(stone_surface_max_y); + generateCaves(stone_surface_max_y, water_level); if ((flags & MG_DUNGEONS) && (stone_surface_max_y >= node_min.Y)) { DungeonParams dp; @@ -272,27 +284,37 @@ void MapgenV7::makeChunk(BlockMakeData *data) dp.np_rarity = nparams_dungeon_rarity; dp.np_density = nparams_dungeon_density; dp.np_wetness = nparams_dungeon_wetness; - dp.c_water = c_water_source; - if (desert_stone) { - dp.c_cobble = c_sandbrick; - dp.c_moss = c_sandbrick; // should make this 'cracked sandstone' later - dp.c_stair = c_stair_sandstone; + dp.c_water = c_water_source; + if (stone_type == MGSTONE_STONE) { + dp.c_cobble = c_cobble; + dp.c_moss = c_mossycobble; + dp.c_stair = c_stair_cobble; + + dp.diagonal_dirs = false; + dp.mossratio = 3.0; + dp.holesize = v3s16(1, 2, 1); + dp.roomsize = v3s16(0, 0, 0); + dp.notifytype = GENNOTIFY_DUNGEON; + } else if (stone_type == MGSTONE_DESERT_STONE) { + dp.c_cobble = c_desert_stone; + dp.c_moss = c_desert_stone; + dp.c_stair = c_desert_stone; dp.diagonal_dirs = true; - dp.mossratio = 0.0; - dp.holesize = v3s16(2, 3, 2); - dp.roomsize = v3s16(2, 5, 2); - dp.notifytype = GENNOTIFY_TEMPLE; - } else { - dp.c_cobble = c_cobble; - dp.c_moss = c_mossycobble; - dp.c_stair = c_stair_cobble; + dp.mossratio = 0.0; + dp.holesize = v3s16(2, 3, 2); + dp.roomsize = v3s16(2, 5, 2); + dp.notifytype = GENNOTIFY_TEMPLE; + } else if (stone_type == MGSTONE_SANDSTONE) { + dp.c_cobble = c_sandstonebrick; + dp.c_moss = c_sandstonebrick; + dp.c_stair = c_sandstonebrick; dp.diagonal_dirs = false; - dp.mossratio = 3.0; - dp.holesize = v3s16(1, 2, 1); - dp.roomsize = v3s16(0, 0, 0); - dp.notifytype = GENNOTIFY_DUNGEON; + dp.mossratio = 0.0; + dp.holesize = v3s16(2, 2, 2); + dp.roomsize = v3s16(2, 0, 2); + dp.notifytype = GENNOTIFY_DUNGEON; } DungeonGen dgen(this, &dp); @@ -300,7 +322,8 @@ void MapgenV7::makeChunk(BlockMakeData *data) } // Generate the registered decorations - m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max); + if (flags & MG_DECORATIONS) + m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max); // Generate the registered ores m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max); @@ -326,9 +349,9 @@ void MapgenV7::makeChunk(BlockMakeData *data) void MapgenV7::calculateNoise() { //TimeTaker t("calculateNoise", NULL, PRECISION_MICRO); - int x = node_min.X; - int y = node_min.Y - 1; - int z = node_min.Z; + s16 x = node_min.X; + s16 y = node_min.Y - 1; + s16 z = node_min.Z; noise_terrain_persist->perlinMap2D(x, z); float *persistmap = noise_terrain_persist->result; @@ -337,9 +360,9 @@ void MapgenV7::calculateNoise() noise_terrain_alt->perlinMap2D(x, z, persistmap); noise_height_select->perlinMap2D(x, z); - if (flags & MG_CAVES) { - noise_cave1->perlinMap3D(x, y, z); - noise_cave2->perlinMap3D(x, y, z); + if (spflags & MGV7_MOUNTAINS) { + noise_mountain->perlinMap3D(x, y, z); + noise_mount_height->perlinMap2D(x, z); } if ((spflags & MGV7_RIDGES) && node_max.Y >= water_level) { @@ -347,31 +370,14 @@ void MapgenV7::calculateNoise() noise_ridge_uwater->perlinMap2D(x, z); } - if ((spflags & MGV7_MOUNTAINS) && node_max.Y >= 0) { - noise_mountain->perlinMap3D(x, y, z); - noise_mount_height->perlinMap2D(x, z); - } + // Cave noises are calculated in generateCaves() + // only if solid terrain is present in mapchunk - if (node_max.Y >= water_level) { - noise_filler_depth->perlinMap2D(x, z); - noise_heat->perlinMap2D(x, z); - noise_humidity->perlinMap2D(x, z); - } //printf("calculateNoise: %dus\n", t.stop()); } -Biome *MapgenV7::getBiomeAtPoint(v3s16 p) -{ - float heat = NoisePerlin2D(&noise_heat->np, p.X, p.Z, seed); - float humidity = NoisePerlin2D(&noise_humidity->np, p.X, p.Z, seed); - s16 groundlevel = baseTerrainLevelAtPoint(p.X, p.Z); - - return bmgr->getBiome(heat, humidity, groundlevel); -} - -//needs to be updated -float MapgenV7::baseTerrainLevelAtPoint(int x, int z) +float MapgenV7::baseTerrainLevelAtPoint(s16 x, s16 z) { float hselect = NoisePerlin2D(&noise_height_select->np, x, z, seed); hselect = rangelim(hselect, 0.0, 1.0); @@ -404,103 +410,66 @@ float MapgenV7::baseTerrainLevelFromMap(int index) } -bool MapgenV7::getMountainTerrainAtPoint(int x, int y, int z) +bool MapgenV7::getMountainTerrainAtPoint(s16 x, s16 y, s16 z) { float mnt_h_n = NoisePerlin2D(&noise_mount_height->np, x, z, seed); + float density_gradient = -((float)y / mnt_h_n); float mnt_n = NoisePerlin3D(&noise_mountain->np, x, y, z, seed); - return mnt_n * mnt_h_n >= (float)y; + + return mnt_n + density_gradient >= 0.0; } -bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, int y) +bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y) { float mounthn = noise_mount_height->result[idx_xz]; + float density_gradient = -((float)y / mounthn); float mountn = noise_mountain->result[idx_xyz]; - return mountn * mounthn >= (float)y; -} - - -#if 0 -void MapgenV7::carveRivers() { - MapNode n_air(CONTENT_AIR), n_water_source(c_water_source); - MapNode n_stone(c_stone); - u32 index = 0; - - int river_depth = 4; - - for (s16 z = node_min.Z; z <= node_max.Z; z++) - for (s16 x = node_min.X; x <= node_max.X; x++, index++) { - float terrain_mod = noise_terrain_mod->result[index]; - NoiseParams *np = noise_terrain_river->np; - np.persist = noise_terrain_persist->result[index]; - float terrain_river = NoisePerlin2DNoTxfm(np, x, z, seed); - float height = terrain_river * (1 - abs(terrain_mod)) * - noise_terrain_river->np.scale; - height = log(height * height); //log(h^3) is pretty interesting for terrain - - s16 y = heightmap[index]; - if (height < 1.0 && y > river_depth && - y - river_depth >= node_min.Y && y <= node_max.Y) { - - for (s16 ry = y; ry != y - river_depth; ry--) { - u32 vi = vm->m_area.index(x, ry, z); - vm->m_data[vi] = n_air; - } - u32 vi = vm->m_area.index(x, y - river_depth, z); - vm->m_data[vi] = n_water_source; - } - } + return mountn + density_gradient >= 0.0; } -#endif int MapgenV7::generateTerrain() -{ - int ymax = generateBaseTerrain(); - - if (spflags & MGV7_MOUNTAINS) - ymax = generateMountainTerrain(ymax); - - if (spflags & MGV7_RIDGES) - generateRidgeTerrain(); - - return ymax; -} - - -int MapgenV7::generateBaseTerrain() { MapNode n_air(CONTENT_AIR); MapNode n_stone(c_stone); MapNode n_water(c_water_source); - int stone_surface_max_y = -MAP_GENERATION_LIMIT; v3s16 em = vm->m_area.getExtent(); - u32 index = 0; + s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT; + u32 index2d = 0; + bool mountain_flag = spflags & MGV7_MOUNTAINS; for (s16 z = node_min.Z; z <= node_max.Z; z++) - for (s16 x = node_min.X; x <= node_max.X; x++, index++) { - float surface_height = baseTerrainLevelFromMap(index); - s16 surface_y = (s16)surface_height; - - heightmap[index] = surface_y; - ridge_heightmap[index] = surface_y; + for (s16 x = node_min.X; x <= node_max.X; x++, index2d++) { + s16 surface_y = baseTerrainLevelFromMap(index2d); + heightmap[index2d] = surface_y; // Create base terrain heightmap + ridge_heightmap[index2d] = surface_y; if (surface_y > stone_surface_max_y) stone_surface_max_y = surface_y; - u32 i = vm->m_area.index(x, node_min.Y - 1, z); + u32 vi = vm->m_area.index(x, node_min.Y - 1, z); + u32 index3d = (z - node_min.Z) * zstride_1u1d + (x - node_min.X); + for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) { - if (vm->m_data[i].getContent() == CONTENT_IGNORE) { - if (y <= surface_y) - vm->m_data[i] = n_stone; - else if (y <= water_level) - vm->m_data[i] = n_water; - else - vm->m_data[i] = n_air; + if (vm->m_data[vi].getContent() == CONTENT_IGNORE) { + if (y <= surface_y) { + vm->m_data[vi] = n_stone; // Base terrain + } else if (mountain_flag && + getMountainTerrainFromMap(index3d, index2d, y)) { + vm->m_data[vi] = n_stone; // Mountain terrain + if (y > stone_surface_max_y) + stone_surface_max_y = y; + } else if (y <= water_level) { + vm->m_data[vi] = n_water; + } else { + vm->m_data[vi] = n_air; + } } - vm->m_area.add_y(em, i, 1); + vm->m_area.add_y(em, vi, 1); + index3d += ystride; } } @@ -508,46 +477,15 @@ int MapgenV7::generateBaseTerrain() } -int MapgenV7::generateMountainTerrain(int ymax) -{ - if (node_max.Y < 0) - return ymax; - - MapNode n_stone(c_stone); - u32 j = 0; - - for (s16 z = node_min.Z; z <= node_max.Z; z++) - for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) { - u32 vi = vm->m_area.index(node_min.X, y, z); - for (s16 x = node_min.X; x <= node_max.X; x++) { - int index = (z - node_min.Z) * csize.X + (x - node_min.X); - content_t c = vm->m_data[vi].getContent(); - - if (getMountainTerrainFromMap(j, index, y) - && (c == CONTENT_AIR || c == c_water_source)) { - vm->m_data[vi] = n_stone; - if (y > ymax) - ymax = y; - } - - vi++; - j++; - } - } - - return ymax; -} - - void MapgenV7::generateRidgeTerrain() { - if (node_max.Y < water_level) + if (node_max.Y < water_level - 16) return; MapNode n_water(c_water_source); MapNode n_air(CONTENT_AIR); u32 index = 0; - float width = 0.2; // TODO: figure out acceptable perlin noise values + float width = 0.2; for (s16 z = node_min.Z; z <= node_max.Z; z++) for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) { @@ -555,7 +493,7 @@ void MapgenV7::generateRidgeTerrain() for (s16 x = node_min.X; x <= node_max.X; x++, index++, vi++) { int j = (z - node_min.Z) * csize.X + (x - node_min.X); - if (heightmap[j] < water_level - 16) + if (heightmap[j] < water_level - 16) // Use base terrain heightmap continue; float uwatern = noise_ridge_uwater->result[j] * 2; @@ -579,139 +517,77 @@ void MapgenV7::generateRidgeTerrain() } -bool MapgenV7::generateBiomes(float *heat_map, float *humidity_map) -{ - if (node_max.Y < water_level) - return false; +//////////////////////////////////////////////////////////////////////////////// +//// Code Boneyard +//// +//// Much of the stuff here has potential to become useful again at some point +//// in the future, but we don't want it to get lost or forgotten in version +//// control. +//// - v3s16 em = vm->m_area.getExtent(); - u32 index = 0; - bool desert_stone = false; +#if 0 +int MapgenV7::generateMountainTerrain(s16 ymax) +{ + MapNode n_stone(c_stone); + u32 j = 0; for (s16 z = node_min.Z; z <= node_max.Z; z++) - for (s16 x = node_min.X; x <= node_max.X; x++, index++) { - Biome *biome = NULL; - s16 dfiller = 0; - s16 y0_top = 0; - s16 y0_filler = 0; - s16 depth_water_top = 0; - - s16 nplaced = 0; - u32 i = vm->m_area.index(x, node_max.Y, z); - - content_t c_above = vm->m_data[i + em.X].getContent(); - bool have_air = c_above == CONTENT_AIR; - - for (s16 y = node_max.Y; y >= node_min.Y; y--) { - content_t c = vm->m_data[i].getContent(); - - if (c != CONTENT_IGNORE && c != CONTENT_AIR && - (y == node_max.Y || have_air)) { - biome = bmgr->getBiome(heat_map[index], humidity_map[index], y); - dfiller = biome->depth_filler + noise_filler_depth->result[index]; - y0_top = biome->depth_top; - y0_filler = biome->depth_top + dfiller; - depth_water_top = biome->depth_water_top; - - if (biome->c_stone == c_desert_stone) - desert_stone = true; - } + for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) { + u32 vi = vm->m_area.index(node_min.X, y, z); + for (s16 x = node_min.X; x <= node_max.X; x++) { + int index = (z - node_min.Z) * csize.X + (x - node_min.X); + content_t c = vm->m_data[vi].getContent(); - if (c == c_stone && have_air) { - content_t c_below = vm->m_data[i - em.X].getContent(); - - if (c_below != CONTENT_AIR && c_below != c_water_source) { - if (nplaced < y0_top) { - vm->m_data[i] = MapNode(biome->c_top); - nplaced++; - } else if (nplaced < y0_filler && nplaced >= y0_top) { - vm->m_data[i] = MapNode(biome->c_filler); - nplaced++; - } else if (c == c_stone) { - have_air = false; - nplaced = 0; - vm->m_data[i] = MapNode(biome->c_stone); - } else { - have_air = false; - nplaced = 0; - } - } else if (c == c_stone) { - have_air = false; - nplaced = 0; - vm->m_data[i] = MapNode(biome->c_stone); - } - } else if (c == c_stone) { - have_air = false; - nplaced = 0; - vm->m_data[i] = MapNode(biome->c_stone); - } else if (c == c_water_source) { - have_air = true; - nplaced = 0; - if (y > water_level - depth_water_top) - vm->m_data[i] = MapNode(biome->c_water_top); - else - vm->m_data[i] = MapNode(biome->c_water); - } else if (c == CONTENT_AIR) { - have_air = true; - nplaced = 0; + if (getMountainTerrainFromMap(j, index, y) + && (c == CONTENT_AIR || c == c_water_source)) { + vm->m_data[vi] = n_stone; + if (y > ymax) + ymax = y; } - vm->m_area.add_y(em, i, -1); + vi++; + j++; } } - return desert_stone; + return ymax; } +#endif -void MapgenV7::dustTopNodes() -{ - if (node_max.Y < water_level) - return; - - v3s16 em = vm->m_area.getExtent(); +#if 0 +void MapgenV7::carveRivers() { + MapNode n_air(CONTENT_AIR), n_water_source(c_water_source); + MapNode n_stone(c_stone); u32 index = 0; + int river_depth = 4; + for (s16 z = node_min.Z; z <= node_max.Z; z++) for (s16 x = node_min.X; x <= node_max.X; x++, index++) { - Biome *biome = (Biome *)bmgr->getRaw(biomemap[index]); - - if (biome->c_dust == CONTENT_IGNORE) - continue; - - u32 vi = vm->m_area.index(x, full_node_max.Y, z); - content_t c_full_max = vm->m_data[vi].getContent(); - s16 y_start; - - if (c_full_max == CONTENT_AIR) { - y_start = full_node_max.Y - 1; - } else if (c_full_max == CONTENT_IGNORE) { - vi = vm->m_area.index(x, node_max.Y + 1, z); - content_t c_max = vm->m_data[vi].getContent(); - - if (c_max == CONTENT_AIR) - y_start = node_max.Y; - else - continue; - } else { - continue; - } + float terrain_mod = noise_terrain_mod->result[index]; + NoiseParams *np = noise_terrain_river->np; + np.persist = noise_terrain_persist->result[index]; + float terrain_river = NoisePerlin2DNoTxfm(np, x, z, seed); + float height = terrain_river * (1 - abs(terrain_mod)) * + noise_terrain_river->np.scale; + height = log(height * height); //log(h^3) is pretty interesting for terrain - vi = vm->m_area.index(x, y_start, z); - for (s16 y = y_start; y >= node_min.Y - 1; y--) { - if (vm->m_data[vi].getContent() != CONTENT_AIR) - break; + s16 y = heightmap[index]; + if (height < 1.0 && y > river_depth && + y - river_depth >= node_min.Y && y <= node_max.Y) { - vm->m_area.add_y(em, vi, -1); - } + for (s16 ry = y; ry != y - river_depth; ry--) { + u32 vi = vm->m_area.index(x, ry, z); + vm->m_data[vi] = n_air; + } - content_t c = vm->m_data[vi].getContent(); - if (!ndef->get(c).buildable_to && c != CONTENT_IGNORE && c != biome->c_dust) { - vm->m_area.add_y(em, vi, 1); - vm->m_data[vi] = MapNode(biome->c_dust); + u32 vi = vm->m_area.index(x, y - river_depth, z); + vm->m_data[vi] = n_water_source; } } } +#endif #if 0 @@ -808,46 +684,3 @@ void MapgenV7::addTopNodes() } } #endif - - -void MapgenV7::generateCaves(int max_stone_y) -{ - if (max_stone_y >= node_min.Y) { - u32 index = 0; - u32 index2d = 0; - - for (s16 z = node_min.Z; z <= node_max.Z; z++) { - for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) { - u32 i = vm->m_area.index(node_min.X, y, z); - for (s16 x = node_min.X; x <= node_max.X; - x++, i++, index++, index2d++) { - float d1 = contour(noise_cave1->result[index]); - float d2 = contour(noise_cave2->result[index]); - if (d1 * d2 > 0.3) { - Biome *biome = (Biome *)bmgr-> - getRaw(biomemap[index2d]); - content_t c = vm->m_data[i].getContent(); - if (!ndef->get(c).is_ground_content || - c == CONTENT_AIR || - (y <= water_level && - c != biome->c_stone && - c != c_stone)) - continue; - - vm->m_data[i] = MapNode(CONTENT_AIR); - } - } - index2d -= ystride; - } - index2d += ystride; - } - } - - PseudoRandom ps(blockseed + 21343); - u32 bruises_count = (ps.range(1, 4) == 1) ? ps.range(1, 2) : 0; - for (u32 i = 0; i < bruises_count; i++) { - CaveV7 cave(this, &ps); - cave.makeCave(node_min, node_max, max_stone_y); - } -} -