X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fmapgen_v5.cpp;h=d7e9d6664cc3a5e7a716ac9ba18485b4f30e6bdb;hb=4a1265ceb5919c53efaa8c50bbb0fe7955aa47aa;hp=16fe4be5d4ed84b2476269bcdc4ba378dc1f437a;hpb=7233a1228eb161cbcbb46c6e801cabd89ef3d2ab;p=dragonfireclient.git diff --git a/src/mapgen_v5.cpp b/src/mapgen_v5.cpp index 16fe4be5d..d7e9d6664 100644 --- a/src/mapgen_v5.cpp +++ b/src/mapgen_v5.cpp @@ -1,6 +1,7 @@ /* Minetest -Copyright (C) 2010-2013 kwolekr, Ryan Kwolek +Copyright (C) 2014-2017 paramat +Copyright (C) 2014-2016 kwolekr, Ryan Kwolek 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 @@ -27,85 +28,46 @@ 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 "main.h" // For g_profiler #include "emerge.h" #include "dungeongen.h" #include "cavegen.h" -#include "treegen.h" #include "mg_biome.h" #include "mg_ore.h" #include "mg_decoration.h" #include "mapgen_v5.h" -#include "util/directiontables.h" FlagDesc flagdesc_mapgen_v5[] = { - {"blobs", MGV5_BLOBS}, - {NULL, 0} + {"caverns", MGV5_CAVERNS}, + {NULL, 0} }; -MapgenV5::MapgenV5(int mapgenid, MapgenParams *params, EmergeManager *emerge) - : Mapgen(mapgenid, params, emerge) +MapgenV5::MapgenV5(int mapgenid, MapgenV5Params *params, EmergeManager *emerge) + : MapgenBasic(mapgenid, params, emerge) { - this->m_emerge = emerge; - this->bmgr = emerge->biomemgr; - - // 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); - - this->biomemap = new u8[csize.X * csize.Z]; - this->heightmap = new s16[csize.X * csize.Z]; - - MapgenV5Params *sp = (MapgenV5Params *)params->sparams; - this->spflags = sp->spflags; + spflags = params->spflags; + cave_width = params->cave_width; + large_cave_depth = params->large_cave_depth; + lava_depth = params->lava_depth; + cavern_limit = params->cavern_limit; + cavern_taper = params->cavern_taper; + cavern_threshold = params->cavern_threshold; // Terrain noise - noise_filler_depth = new Noise(&sp->np_filler_depth, seed, csize.X, csize.Z); - noise_factor = new Noise(&sp->np_factor, seed, csize.X, csize.Z); - noise_height = new Noise(&sp->np_height, seed, csize.X, csize.Z); + noise_filler_depth = new Noise(¶ms->np_filler_depth, seed, csize.X, csize.Z); + noise_factor = new Noise(¶ms->np_factor, seed, csize.X, csize.Z); + noise_height = new Noise(¶ms->np_height, seed, csize.X, csize.Z); // 3D terrain noise - 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); - noise_ground = new Noise(&sp->np_ground, seed, csize.X, csize.Y + 2, csize.Z); - noise_crumble = new Noise(&sp->np_crumble, seed, csize.X, csize.Y + 2, csize.Z); - noise_wetness = new Noise(&sp->np_wetness, seed, csize.X, csize.Y + 2, 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); - - //// 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_gravel = ndef->getId("mapgen_gravel"); - c_cobble = ndef->getId("mapgen_cobble"); - c_ice = ndef->getId("default:ice"); - 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"); - 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; + // 1-up 1-down overgeneration + noise_ground = new Noise(¶ms->np_ground, seed, csize.X, csize.Y + 2, csize.Z); + // 1 down overgeneration + MapgenBasic::np_cave1 = params->np_cave1; + MapgenBasic::np_cave2 = params->np_cave2; + MapgenBasic::np_cavern = params->np_cavern; } @@ -114,116 +76,99 @@ MapgenV5::~MapgenV5() delete noise_filler_depth; delete noise_factor; delete noise_height; - delete noise_cave1; - delete noise_cave2; delete noise_ground; - delete noise_crumble; - delete noise_wetness; - - delete noise_heat; - delete noise_humidity; - - delete[] heightmap; - delete[] biomemap; } MapgenV5Params::MapgenV5Params() { - spflags = MGV5_BLOBS; - np_filler_depth = NoiseParams(0, 1, v3f(150, 150, 150), 261, 4, 0.7, 2.0); np_factor = NoiseParams(0, 1, v3f(250, 250, 250), 920381, 3, 0.45, 2.0); np_height = NoiseParams(0, 10, v3f(250, 250, 250), 84174, 4, 0.5, 2.0); - np_cave1 = NoiseParams(0, 6, v3f(50, 50, 50), 52534, 4, 0.5, 2.0, NOISE_FLAG_EASED); - np_cave2 = NoiseParams(0, 6, v3f(50, 50, 50), 10325, 4, 0.5, 2.0, NOISE_FLAG_EASED); np_ground = NoiseParams(0, 40, v3f(80, 80, 80), 983240, 4, 0.55, 2.0, NOISE_FLAG_EASED); - np_crumble = NoiseParams(0, 1, v3f(20, 20, 20), 34413, 3, 1.3, 2.0, NOISE_FLAG_EASED); - np_wetness = NoiseParams(0, 1, v3f(40, 40, 40), 32474, 4, 1.1, 2.0); + np_cave1 = NoiseParams(0, 12, v3f(50, 50, 50), 52534, 4, 0.5, 2.0); + np_cave2 = NoiseParams(0, 12, v3f(50, 50, 50), 10325, 4, 0.5, 2.0); + np_cavern = NoiseParams(0, 1, v3f(384, 128, 384), 723, 5, 0.63, 2.0); } -// Current caves noise scale default is 6 to compensate for new eased 3d noise amplitude - -// Scaling the output of the noise function affects the overdrive of the -// contour function, which affects the shape of the output considerably. - -//#define CAVE_NOISE_SCALE 12.0 < original default -//#define CAVE_NOISE_SCALE 10.0 -//#define CAVE_NOISE_SCALE 7.5 -//#define CAVE_NOISE_SCALE 5.0 -//#define CAVE_NOISE_SCALE 1.0 - -//#define CAVE_NOISE_THRESHOLD (2.5/CAVE_NOISE_SCALE) -//#define CAVE_NOISE_THRESHOLD (1.5/CAVE_NOISE_SCALE) < original and current code - - -void MapgenV5Params::readParams(Settings *settings) +void MapgenV5Params::readParams(const Settings *settings) { - settings->getFlagStrNoEx("mgv5_spflags", spflags, flagdesc_mapgen_v5); + settings->getFlagStrNoEx("mgv5_spflags", spflags, flagdesc_mapgen_v5); + settings->getFloatNoEx("mgv5_cave_width", cave_width); + settings->getS16NoEx("mgv5_large_cave_depth", large_cave_depth); + settings->getS16NoEx("mgv5_lava_depth", lava_depth); + settings->getS16NoEx("mgv5_cavern_limit", cavern_limit); + settings->getS16NoEx("mgv5_cavern_taper", cavern_taper); + settings->getFloatNoEx("mgv5_cavern_threshold", cavern_threshold); settings->getNoiseParams("mgv5_np_filler_depth", np_filler_depth); settings->getNoiseParams("mgv5_np_factor", np_factor); settings->getNoiseParams("mgv5_np_height", np_height); + settings->getNoiseParams("mgv5_np_ground", np_ground); settings->getNoiseParams("mgv5_np_cave1", np_cave1); settings->getNoiseParams("mgv5_np_cave2", np_cave2); - settings->getNoiseParams("mgv5_np_ground", np_ground); - settings->getNoiseParams("mgv5_np_crumble", np_crumble); - settings->getNoiseParams("mgv5_np_wetness", np_wetness); + settings->getNoiseParams("mgv5_np_cavern", np_cavern); } -void MapgenV5Params::writeParams(Settings *settings) +void MapgenV5Params::writeParams(Settings *settings) const { - settings->setFlagStr("mgv5_spflags", spflags, flagdesc_mapgen_v5, (u32)-1); + settings->setFlagStr("mgv5_spflags", spflags, flagdesc_mapgen_v5, U32_MAX); + settings->setFloat("mgv5_cave_width", cave_width); + settings->setS16("mgv5_large_cave_depth", large_cave_depth); + settings->setS16("mgv5_lava_depth", lava_depth); + settings->setS16("mgv5_cavern_limit", cavern_limit); + settings->setS16("mgv5_cavern_taper", cavern_taper); + settings->setFloat("mgv5_cavern_threshold", cavern_threshold); settings->setNoiseParams("mgv5_np_filler_depth", np_filler_depth); settings->setNoiseParams("mgv5_np_factor", np_factor); settings->setNoiseParams("mgv5_np_height", np_height); + settings->setNoiseParams("mgv5_np_ground", np_ground); settings->setNoiseParams("mgv5_np_cave1", np_cave1); settings->setNoiseParams("mgv5_np_cave2", np_cave2); - settings->setNoiseParams("mgv5_np_ground", np_ground); - settings->setNoiseParams("mgv5_np_crumble", np_crumble); - settings->setNoiseParams("mgv5_np_wetness", np_wetness); + settings->setNoiseParams("mgv5_np_cavern", np_cavern); } -int MapgenV5::getGroundLevelAtPoint(v2s16 p) +int MapgenV5::getSpawnLevelAtPoint(v2s16 p) { - //TimeTaker t("getGroundLevelAtPoint", NULL, PRECISION_MICRO); float f = 0.55 + NoisePerlin2D(&noise_factor->np, p.X, p.Y, seed); - if(f < 0.01) + if (f < 0.01) f = 0.01; - else if(f >= 1.0) + else if (f >= 1.0) f *= 1.6; - float h = water_level + NoisePerlin2D(&noise_height->np, p.X, p.Y, seed); + float h = NoisePerlin2D(&noise_height->np, p.X, p.Y, seed); - s16 search_top = water_level + 15; - s16 search_base = water_level; - // Use these 2 lines instead for a slower search returning highest ground level - //s16 search_top = h + f * noise_ground->np->octaves * noise_ground->np->scale; - //s16 search_base = h - f * noise_ground->np->octaves * noise_ground->np->scale; + // noise_height 'offset' is the average level of terrain. At least 50% of + // terrain will be below this. + // Raising the maximum spawn level above 'water_level + 16' is necessary + // for when noise_height 'offset' is set much higher than water_level. + s16 max_spawn_y = MYMAX(noise_height->np.offset, water_level + 16); - s16 level = -31000; - for (s16 y = search_top; y >= search_base; y--) { + // Starting spawn search at max_spawn_y + 128 ensures 128 nodes of open + // space above spawn position. Avoids spawning in possibly sealed voids. + for (s16 y = max_spawn_y + 128; y >= water_level; y--) { float n_ground = NoisePerlin3D(&noise_ground->np, p.X, y, p.Y, seed); - if(n_ground * f > y - h) { - if(y >= search_top - 7) - break; - else - level = y; - break; + + if (n_ground * f > y - h) { // If solid + if (y < water_level || y > max_spawn_y) + return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point + + // y + 2 because y is surface and due to biome 'dust' nodes. + return y + 2; } } - - //printf("getGroundLevelAtPoint: %dus\n", t.stop()); - return level; + // Unsuitable spawn position, no ground found + return MAX_MAP_GENERATION_LIMIT; } void MapgenV5::makeChunk(BlockMakeData *data) { + // Pre-conditions assert(data->vmanip); assert(data->nodedef); assert(data->blockpos_requested.X >= data->blockpos_min.X && @@ -233,9 +178,9 @@ void MapgenV5::makeChunk(BlockMakeData *data) data->blockpos_requested.Y <= data->blockpos_max.Y && data->blockpos_requested.Z <= data->blockpos_max.Z); - generating = true; - vm = data->vmanip; - ndef = data->nodedef; + this->generating = true; + this->vm = data->vmanip; + this->ndef = data->nodedef; //TimeTaker t("makeChunk"); v3s16 blockpos_min = data->blockpos_min; @@ -248,37 +193,47 @@ void MapgenV5::makeChunk(BlockMakeData *data) // Create a block-specific seed blockseed = getBlockSeed2(full_node_min, seed); - // Make some noise - calculateNoise(); - // Generate base terrain s16 stone_surface_max_y = generateBaseTerrain(); + // Create heightmap updateHeightmap(node_min, node_max); - // Generate underground dirt, sand, gravel and lava blobs - if (spflags & MGV5_BLOBS) { - generateBlobs(); + // Init biome generator, place biome-specific nodes, and build biomemap + biomegen->calcBiomeNoise(node_min); + + MgStoneType mgstone_type; + content_t biome_stone; + generateBiomes(&mgstone_type, &biome_stone, water_level - 1); + + // Generate caverns, tunnels and classic caves + if (flags & MG_CAVES) { + bool near_cavern = false; + // Generate caverns + if (spflags & MGV5_CAVERNS) + near_cavern = generateCaverns(stone_surface_max_y); + // Generate tunnels and classic caves + if (near_cavern) + // Disable classic caves in this mapchunk by setting + // 'large cave depth' to world base. Avoids excessive liquid in + // large caverns and floating blobs of overgenerated liquid. + generateCaves(stone_surface_max_y, -MAX_MAP_GENERATION_LIMIT); + else + generateCaves(stone_surface_max_y, large_cave_depth); } - // Calculate biomes - bmgr->calcBiomes(csize.X, csize.Z, noise_heat->result, - noise_humidity->result, heightmap, biomemap); - - // Actually place the biome-specific nodes - generateBiomes(); - // Generate dungeons and desert temples - if ((flags & MG_DUNGEONS) && (stone_surface_max_y >= node_min.Y)) { - DungeonGen dgen(this, NULL); - dgen.generate(blockseed, full_node_min, full_node_max); - } + if (flags & MG_DUNGEONS) + generateDungeons(stone_surface_max_y, mgstone_type, biome_stone); // 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, water_level - 1); // Generate the registered ores - m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max); + m_emerge->oremgr->placeAllOres(this, blockseed, + node_min, node_max, water_level - 1); // Sprinkle some dust on top after everything else was generated dustTopNodes(); @@ -289,256 +244,54 @@ void MapgenV5::makeChunk(BlockMakeData *data) updateLiquid(&data->transforming_liquid, full_node_min, full_node_max); // Calculate lighting - if (flags & MG_LIGHT) - calcLighting(node_min - v3s16(0, 1, 0), node_max + v3s16(0, 1, 0)); - - this->generating = false; -} - - -void MapgenV5::calculateNoise() -{ - //TimeTaker t("calculateNoise", NULL, PRECISION_MICRO); - int x = node_min.X; - int y = node_min.Y - 1; - int z = node_min.Z; - - noise_filler_depth->perlinMap2D(x, z); - noise_factor->perlinMap2D(x, z); - noise_height->perlinMap2D(x, z); - - noise_cave1->perlinMap3D(x, y, z); - noise_cave2->perlinMap3D(x, y, z); - noise_ground->perlinMap3D(x, y, z); - - if (spflags & MGV5_BLOBS) { - noise_crumble->perlinMap3D(x, y, z); - noise_wetness->perlinMap3D(x, y, z); + if (flags & MG_LIGHT) { + calcLighting(node_min - v3s16(0, 1, 0), node_max + v3s16(0, 1, 0), + full_node_min, full_node_max); } - noise_heat->perlinMap2D(x, z); - noise_humidity->perlinMap2D(x, z); - - //printf("calculateNoise: %dus\n", t.stop()); + this->generating = false; } -//bool is_cave(u32 index) { -// double d1 = contour(noise_cave1->result[index]); -// double d2 = contour(noise_cave2->result[index]); -// return d1*d2 > CAVE_NOISE_THRESHOLD; -//} - - -//bool val_is_ground(v3s16 p, u32 index, u32 index2d) { -// double f = 0.55 + noise_factor->result[index2d]; -// if(f < 0.01) -// f = 0.01; -// else if(f >= 1.0) -// f *= 1.6; -// double h = WATER_LEVEL + 10 * noise_height->result[index2d]; -// return (noise_ground->result[index] * f > (double)p.Y - h); -//} - - -// Make base ground level int MapgenV5::generateBaseTerrain() { u32 index = 0; u32 index2d = 0; - int stone_surface_max_y = -MAP_GENERATION_LIMIT; + int stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT; + + noise_factor->perlinMap2D(node_min.X, node_min.Z); + noise_height->perlinMap2D(node_min.X, node_min.Z); + noise_ground->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z); - 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++) { - if(vm->m_data[i].getContent() != CONTENT_IGNORE) + 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++, vi++, index++, index2d++) { + if (vm->m_data[vi].getContent() != CONTENT_IGNORE) continue; float f = 0.55 + noise_factor->result[index2d]; - if(f < 0.01) + if (f < 0.01) f = 0.01; - else if(f >= 1.0) + else if (f >= 1.0) f *= 1.6; - float h = water_level + noise_height->result[index2d]; - float d1 = contour(noise_cave1->result[index]); - float d2 = contour(noise_cave2->result[index]); + float h = noise_height->result[index2d]; - if(noise_ground->result[index] * f < y - h) { - if(y <= water_level) - vm->m_data[i] = MapNode(c_water_source); + if (noise_ground->result[index] * f < y - h) { + if (y <= water_level) + vm->m_data[vi] = MapNode(c_water_source); else - vm->m_data[i] = MapNode(CONTENT_AIR); - } else if(d1*d2 > 0.2) { - vm->m_data[i] = MapNode(CONTENT_AIR); + vm->m_data[vi] = MapNode(CONTENT_AIR); } else { - vm->m_data[i] = MapNode(c_stone); + vm->m_data[vi] = MapNode(c_stone); if (y > stone_surface_max_y) stone_surface_max_y = y; } } - index2d = index2d - ystride; + index2d -= ystride; } - index2d = index2d + ystride; + index2d += ystride; } return stone_surface_max_y; } - - -// Add mud and sand and others underground (in place of stone) -void MapgenV5::generateBlobs() -{ - u32 index = 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++) { - content_t c = vm->m_data[i].getContent(); - if(c != c_stone) - continue; - - if(noise_crumble->result[index] > 1.3) { - if(noise_wetness->result[index] > 0.0) - vm->m_data[i] = MapNode(c_dirt); - else - vm->m_data[i] = MapNode(c_sand); - } else if(noise_crumble->result[index] > 0.7) { - if(noise_wetness->result[index] < -0.6) - vm->m_data[i] = MapNode(c_gravel); - } else if(noise_crumble->result[index] < -3.5 + - MYMIN(0.1 * - sqrt((float)MYMAX(0, -y)), 1.5)) { - vm->m_data[i] = MapNode(c_lava_source); - } - } - } - } -} - - -void MapgenV5::generateBiomes() -{ - if (node_max.Y < water_level) - return; - - MapNode n_air(CONTENT_AIR); - MapNode n_stone(c_stone); - MapNode n_water(c_water_source); - - v3s16 em = vm->m_area.getExtent(); - u32 index = 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 = (Biome *)bmgr->get(biomemap[index]); - s16 dfiller = biome->depth_filler + noise_filler_depth->result[index]; - s16 y0_top = biome->depth_top; - s16 y0_filler = biome->depth_top + dfiller; - s16 shore_max = water_level + biome->height_shore; - s16 depth_water_top = biome->depth_water_top; - - 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(); - bool is_replaceable_content = - c == c_stone || c == c_dirt_with_grass || c == c_dirt || - c == c_sand || c == c_lava_source || c == c_gravel; - - if (is_replaceable_content && have_air) { - content_t c_below = vm->m_data[i - em.X].getContent(); - - if (c_below != CONTENT_AIR) { - if (nplaced < y0_top) { - if(y < water_level) - vm->m_data[i] = MapNode(biome->c_underwater); - else if(y <= shore_max) - vm->m_data[i] = MapNode(biome->c_shore_top); - else - vm->m_data[i] = MapNode(biome->c_top); - nplaced++; - } else if (nplaced < y0_filler && nplaced >= y0_top) { - if(y < water_level) - vm->m_data[i] = MapNode(biome->c_underwater); - else if(y <= shore_max) - vm->m_data[i] = MapNode(biome->c_shore_filler); - else - 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; - } - - vm->m_area.add_y(em, i, -1); - } - } -} - - -void MapgenV5::dustTopNodes() -{ - v3s16 em = vm->m_area.getExtent(); - u32 index = 0; - - if (water_level > node_max.Y) - return; - - 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->get(biomemap[index]); - - if (biome->c_dust == CONTENT_IGNORE) - continue; - - s16 y = node_max.Y + 1; - u32 vi = vm->m_area.index(x, y, z); - for (; y >= node_min.Y; y--) { - if (vm->m_data[vi].getContent() != CONTENT_AIR) - break; - - vm->m_area.add_y(em, vi, -1); - } - - content_t c = vm->m_data[vi].getContent(); - if (!ndef->get(c).buildable_to && c != CONTENT_IGNORE - && c != biome->c_dust) { - if (y == node_max.Y + 1) - continue; - - vm->m_area.add_y(em, vi, 1); - vm->m_data[vi] = MapNode(biome->c_dust); - } - } -} -