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- /*
- Minetest
- Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
- 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.h"
- #include "voxel.h"
- #include "noise.h"
- #include "biome.h"
- #include "mapblock.h"
- #include "mapnode.h"
- #include "map.h"
- //#include "serverobject.h"
- #include "content_sao.h"
- #include "nodedef.h"
- #include "content_mapnode.h" // For content_mapnode_get_new_name
- #include "voxelalgorithms.h"
- #include "profiler.h"
- #include "settings.h" // For g_settings
- #include "main.h" // For g_profiler
- #include "treegen.h"
- #include "mapgen_v6.h"
- #include "mapgen_v7.h"
- #include "serialization.h"
- #include "util/serialize.h"
- #include "filesys.h"
- FlagDesc flagdesc_mapgen[] = {
- {"trees", MG_TREES},
- {"caves", MG_CAVES},
- {"dungeons", MG_DUNGEONS},
- {"flat", MG_FLAT},
- {"light", MG_LIGHT},
- {NULL, 0}
- };
- FlagDesc flagdesc_ore[] = {
- {"absheight", OREFLAG_ABSHEIGHT},
- {"scatter_noisedensity", OREFLAG_DENSITY},
- {"claylike_nodeisnt", OREFLAG_NODEISNT},
- {NULL, 0}
- };
- FlagDesc flagdesc_deco_schematic[] = {
- {"place_center_x", DECO_PLACE_CENTER_X},
- {"place_center_y", DECO_PLACE_CENTER_Y},
- {"place_center_z", DECO_PLACE_CENTER_Z},
- {NULL, 0}
- };
- FlagDesc flagdesc_gennotify[] = {
- {"dungeon", 1 << GENNOTIFY_DUNGEON},
- {"temple", 1 << GENNOTIFY_TEMPLE},
- {"cave_begin", 1 << GENNOTIFY_CAVE_BEGIN},
- {"cave_end", 1 << GENNOTIFY_CAVE_END},
- {"large_cave_begin", 1 << GENNOTIFY_LARGECAVE_BEGIN},
- {"large_cave_end", 1 << GENNOTIFY_LARGECAVE_END},
- {NULL, 0}
- };
- ///////////////////////////////////////////////////////////////////////////////
- Ore *createOre(OreType type) {
- switch (type) {
- case ORE_SCATTER:
- return new OreScatter;
- case ORE_SHEET:
- return new OreSheet;
- //case ORE_CLAYLIKE: //TODO: implement this!
- // return new OreClaylike;
- default:
- return NULL;
- }
- }
- Ore::~Ore() {
- delete np;
- delete noise;
- }
- void Ore::resolveNodeNames(INodeDefManager *ndef) {
- if (ore == CONTENT_IGNORE) {
- ore = ndef->getId(ore_name);
- if (ore == CONTENT_IGNORE) {
- errorstream << "Ore::resolveNodeNames: ore node '"
- << ore_name << "' not defined";
- ore = CONTENT_AIR;
- wherein.push_back(CONTENT_AIR);
- return;
- }
- }
- for (size_t i=0; i != wherein_names.size(); i++) {
- std::string name = wherein_names[i];
- content_t c = ndef->getId(name);
- if (c != CONTENT_IGNORE) {
- wherein.push_back(c);
- }
- }
- }
- void Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
- int in_range = 0;
- in_range |= (nmin.Y <= height_max && nmax.Y >= height_min);
- if (flags & OREFLAG_ABSHEIGHT)
- in_range |= (nmin.Y >= -height_max && nmax.Y <= -height_min) << 1;
- if (!in_range)
- return;
- int ymin, ymax;
- if (in_range & ORE_RANGE_MIRROR) {
- ymin = MYMAX(nmin.Y, -height_max);
- ymax = MYMIN(nmax.Y, -height_min);
- } else {
- ymin = MYMAX(nmin.Y, height_min);
- ymax = MYMIN(nmax.Y, height_max);
- }
- if (clust_size >= ymax - ymin + 1)
- return;
- nmin.Y = ymin;
- nmax.Y = ymax;
- generate(mg->vm, mg->seed, blockseed, nmin, nmax);
- }
- void OreScatter::generate(ManualMapVoxelManipulator *vm, int seed,
- u32 blockseed, v3s16 nmin, v3s16 nmax) {
- PseudoRandom pr(blockseed);
- MapNode n_ore(ore, 0, ore_param2);
- int volume = (nmax.X - nmin.X + 1) *
- (nmax.Y - nmin.Y + 1) *
- (nmax.Z - nmin.Z + 1);
- int csize = clust_size;
- int orechance = (csize * csize * csize) / clust_num_ores;
- int nclusters = volume / clust_scarcity;
- for (int i = 0; i != nclusters; i++) {
- int x0 = pr.range(nmin.X, nmax.X - csize + 1);
- int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
- int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);
- if (np && (NoisePerlin3D(np, x0, y0, z0, seed) < nthresh))
- continue;
- for (int z1 = 0; z1 != csize; z1++)
- for (int y1 = 0; y1 != csize; y1++)
- for (int x1 = 0; x1 != csize; x1++) {
- if (pr.range(1, orechance) != 1)
- continue;
- u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
- for (size_t ii = 0; ii < wherein.size(); ii++)
- if (vm->m_data[i].getContent() == wherein[ii])
- vm->m_data[i] = n_ore;
- }
- }
- }
- void OreSheet::generate(ManualMapVoxelManipulator *vm, int seed,
- u32 blockseed, v3s16 nmin, v3s16 nmax) {
- PseudoRandom pr(blockseed + 4234);
- MapNode n_ore(ore, 0, ore_param2);
- int max_height = clust_size;
- int y_start = pr.range(nmin.Y, nmax.Y - max_height);
- if (!noise) {
- int sx = nmax.X - nmin.X + 1;
- int sz = nmax.Z - nmin.Z + 1;
- noise = new Noise(np, 0, sx, sz);
- }
- noise->seed = seed + y_start;
- noise->perlinMap2D(nmin.X, nmin.Z);
- int index = 0;
- for (int z = nmin.Z; z <= nmax.Z; z++)
- for (int x = nmin.X; x <= nmax.X; x++) {
- float noiseval = noise->result[index++];
- if (noiseval < nthresh)
- continue;
- int height = max_height * (1. / pr.range(1, 3));
- int y0 = y_start + np->scale * noiseval; //pr.range(1, 3) - 1;
- int y1 = y0 + height;
- for (int y = y0; y != y1; y++) {
- u32 i = vm->m_area.index(x, y, z);
- if (!vm->m_area.contains(i))
- continue;
- for (size_t ii = 0; ii < wherein.size(); ii++)
- if (vm->m_data[i].getContent() == wherein[ii])
- vm->m_data[i] = n_ore;
- }
- }
- }
- ///////////////////////////////////////////////////////////////////////////////
- Decoration *createDecoration(DecorationType type) {
- switch (type) {
- case DECO_SIMPLE:
- return new DecoSimple;
- case DECO_SCHEMATIC:
- return new DecoSchematic;
- //case DECO_LSYSTEM:
- // return new DecoLSystem;
- default:
- return NULL;
- }
- }
- Decoration::Decoration() {
- mapseed = 0;
- np = NULL;
- fill_ratio = 0;
- sidelen = 1;
- }
- Decoration::~Decoration() {
- delete np;
- }
- void Decoration::resolveNodeNames(INodeDefManager *ndef) {
- this->ndef = ndef;
- if (c_place_on == CONTENT_IGNORE)
- c_place_on = ndef->getId(place_on_name);
- }
- void Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
- PseudoRandom ps(blockseed + 53);
- int carea_size = nmax.X - nmin.X + 1;
- // Divide area into parts
- if (carea_size % sidelen) {
- errorstream << "Decoration::placeDeco: chunk size is not divisible by "
- "sidelen; setting sidelen to " << carea_size << std::endl;
- sidelen = carea_size;
- }
- s16 divlen = carea_size / sidelen;
- int area = sidelen * sidelen;
- for (s16 z0 = 0; z0 < divlen; z0++)
- for (s16 x0 = 0; x0 < divlen; x0++) {
- v2s16 p2d_center( // Center position of part of division
- nmin.X + sidelen / 2 + sidelen * x0,
- nmin.Z + sidelen / 2 + sidelen * z0
- );
- v2s16 p2d_min( // Minimum edge of part of division
- nmin.X + sidelen * x0,
- nmin.Z + sidelen * z0
- );
- v2s16 p2d_max( // Maximum edge of part of division
- nmin.X + sidelen + sidelen * x0 - 1,
- nmin.Z + sidelen + sidelen * z0 - 1
- );
- // Amount of decorations
- float nval = np ?
- NoisePerlin2D(np, p2d_center.X, p2d_center.Y, mapseed) :
- fill_ratio;
- u32 deco_count = area * MYMAX(nval, 0.f);
- for (u32 i = 0; i < deco_count; i++) {
- s16 x = ps.range(p2d_min.X, p2d_max.X);
- s16 z = ps.range(p2d_min.Y, p2d_max.Y);
- int mapindex = carea_size * (z - nmin.Z) + (x - nmin.X);
- s16 y = mg->heightmap ?
- mg->heightmap[mapindex] :
- mg->findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
- if (y < nmin.Y || y > nmax.Y)
- continue;
- int height = getHeight();
- int max_y = nmax.Y;// + MAP_BLOCKSIZE - 1;
- if (y + 1 + height > max_y) {
- continue;
- #if 0
- printf("Decoration at (%d %d %d) cut off\n", x, y, z);
- //add to queue
- JMutexAutoLock cutofflock(cutoff_mutex);
- cutoffs.push_back(CutoffData(x, y, z, height));
- #endif
- }
- if (mg->biomemap) {
- std::set<u8>::iterator iter;
- if (biomes.size()) {
- iter = biomes.find(mg->biomemap[mapindex]);
- if (iter == biomes.end())
- continue;
- }
- }
- generate(mg, &ps, max_y, v3s16(x, y, z));
- }
- }
- }
- #if 0
- void Decoration::placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
- PseudoRandom pr(blockseed + 53);
- std::vector<CutoffData> handled_cutoffs;
- // Copy over the cutoffs we're interested in so we don't needlessly hold a lock
- {
- JMutexAutoLock cutofflock(cutoff_mutex);
- for (std::list<CutoffData>::iterator i = cutoffs.begin();
- i != cutoffs.end(); ++i) {
- CutoffData cutoff = *i;
- v3s16 p = cutoff.p;
- s16 height = cutoff.height;
- if (p.X < nmin.X || p.X > nmax.X ||
- p.Z < nmin.Z || p.Z > nmax.Z)
- continue;
- if (p.Y + height < nmin.Y || p.Y > nmax.Y)
- continue;
- handled_cutoffs.push_back(cutoff);
- }
- }
- // Generate the cutoffs
- for (size_t i = 0; i != handled_cutoffs.size(); i++) {
- v3s16 p = handled_cutoffs[i].p;
- s16 height = handled_cutoffs[i].height;
- if (p.Y + height > nmax.Y) {
- //printf("Decoration at (%d %d %d) cut off again!\n", p.X, p.Y, p.Z);
- cuttoffs.push_back(v3s16(p.X, p.Y, p.Z));
- }
- generate(mg, &pr, nmax.Y, nmin.Y - p.Y, v3s16(p.X, nmin.Y, p.Z));
- }
- // Remove cutoffs that were handled from the cutoff list
- {
- JMutexAutoLock cutofflock(cutoff_mutex);
- for (std::list<CutoffData>::iterator i = cutoffs.begin();
- i != cutoffs.end(); ++i) {
- for (size_t j = 0; j != handled_cutoffs.size(); j++) {
- CutoffData coff = *i;
- if (coff.p == handled_cutoffs[j].p)
- i = cutoffs.erase(i);
- }
- }
- }
- }
- #endif
- ///////////////////////////////////////////////////////////////////////////////
- void DecoSimple::resolveNodeNames(INodeDefManager *ndef) {
- Decoration::resolveNodeNames(ndef);
- if (c_deco == CONTENT_IGNORE && !decolist_names.size()) {
- c_deco = ndef->getId(deco_name);
- if (c_deco == CONTENT_IGNORE) {
- errorstream << "DecoSimple::resolveNodeNames: decoration node '"
- << deco_name << "' not defined" << std::endl;
- c_deco = CONTENT_AIR;
- }
- }
- if (c_spawnby == CONTENT_IGNORE) {
- c_spawnby = ndef->getId(spawnby_name);
- if (c_spawnby == CONTENT_IGNORE) {
- errorstream << "DecoSimple::resolveNodeNames: spawnby node '"
- << spawnby_name << "' not defined" << std::endl;
- nspawnby = -1;
- c_spawnby = CONTENT_AIR;
- }
- }
- if (c_decolist.size())
- return;
- for (size_t i = 0; i != decolist_names.size(); i++) {
- content_t c = ndef->getId(decolist_names[i]);
- if (c == CONTENT_IGNORE) {
- errorstream << "DecoSimple::resolveNodeNames: decolist node '"
- << decolist_names[i] << "' not defined" << std::endl;
- c = CONTENT_AIR;
- }
- c_decolist.push_back(c);
- }
- }
- void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
- ManualMapVoxelManipulator *vm = mg->vm;
- u32 vi = vm->m_area.index(p);
- if (vm->m_data[vi].getContent() != c_place_on &&
- c_place_on != CONTENT_IGNORE)
- return;
- if (nspawnby != -1) {
- int nneighs = 0;
- v3s16 dirs[8] = { // a Moore neighborhood
- v3s16( 0, 0, 1),
- v3s16( 0, 0, -1),
- v3s16( 1, 0, 0),
- v3s16(-1, 0, 0),
- v3s16( 1, 0, 1),
- v3s16(-1, 0, 1),
- v3s16(-1, 0, -1),
- v3s16( 1, 0, -1)
- };
- for (int i = 0; i != 8; i++) {
- u32 index = vm->m_area.index(p + dirs[i]);
- if (vm->m_area.contains(index) &&
- vm->m_data[index].getContent() == c_spawnby)
- nneighs++;
- }
- if (nneighs < nspawnby)
- return;
- }
- size_t ndecos = c_decolist.size();
- content_t c_place = ndecos ? c_decolist[pr->range(0, ndecos - 1)] : c_deco;
- s16 height = (deco_height_max > 0) ?
- pr->range(deco_height, deco_height_max) : deco_height;
- height = MYMIN(height, max_y - p.Y);
- v3s16 em = vm->m_area.getExtent();
- for (int i = 0; i < height; i++) {
- vm->m_area.add_y(em, vi, 1);
- content_t c = vm->m_data[vi].getContent();
- if (c != CONTENT_AIR && c != CONTENT_IGNORE)
- break;
- vm->m_data[vi] = MapNode(c_place);
- }
- }
- int DecoSimple::getHeight() {
- return (deco_height_max > 0) ? deco_height_max : deco_height;
- }
- std::string DecoSimple::getName() {
- return deco_name;
- }
- ///////////////////////////////////////////////////////////////////////////////
- DecoSchematic::DecoSchematic() {
- node_names = NULL;
- schematic = NULL;
- slice_probs = NULL;
- flags = 0;
- size = v3s16(0, 0, 0);
- }
- DecoSchematic::~DecoSchematic() {
- delete node_names;
- delete []schematic;
- delete []slice_probs;
- }
- void DecoSchematic::resolveNodeNames(INodeDefManager *ndef) {
- Decoration::resolveNodeNames(ndef);
- if (filename.empty())
- return;
- if (!node_names) {
- errorstream << "DecoSchematic::resolveNodeNames: node name list was "
- "not created" << std::endl;
- return;
- }
- for (size_t i = 0; i != node_names->size(); i++) {
- std::string name = node_names->at(i);
- std::map<std::string, std::string>::iterator it;
- it = replacements.find(name);
- if (it != replacements.end())
- name = it->second;
- content_t c = ndef->getId(name);
- if (c == CONTENT_IGNORE) {
- errorstream << "DecoSchematic::resolveNodeNames: node '"
- << name << "' not defined" << std::endl;
- c = CONTENT_AIR;
- }
- c_nodes.push_back(c);
- }
- for (int i = 0; i != size.X * size.Y * size.Z; i++)
- schematic[i].setContent(c_nodes[schematic[i].getContent()]);
- delete node_names;
- node_names = NULL;
- }
- void DecoSchematic::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
- ManualMapVoxelManipulator *vm = mg->vm;
- if (flags & DECO_PLACE_CENTER_X)
- p.X -= (size.X + 1) / 2;
- if (flags & DECO_PLACE_CENTER_Y)
- p.Y -= (size.Y + 1) / 2;
- if (flags & DECO_PLACE_CENTER_Z)
- p.Z -= (size.Z + 1) / 2;
- u32 vi = vm->m_area.index(p);
- if (vm->m_data[vi].getContent() != c_place_on &&
- c_place_on != CONTENT_IGNORE)
- return;
- Rotation rot = (rotation == ROTATE_RAND) ?
- (Rotation)pr->range(ROTATE_0, ROTATE_270) : rotation;
- blitToVManip(p, vm, rot, false);
- }
- int DecoSchematic::getHeight() {
- return size.Y;
- }
- std::string DecoSchematic::getName() {
- return filename;
- }
- void DecoSchematic::blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
- Rotation rot, bool force_placement) {
- int xstride = 1;
- int ystride = size.X;
- int zstride = size.X * size.Y;
- s16 sx = size.X;
- s16 sy = size.Y;
- s16 sz = size.Z;
- int i_start, i_step_x, i_step_z;
- switch (rot) {
- case ROTATE_90:
- i_start = sx - 1;
- i_step_x = zstride;
- i_step_z = -xstride;
- SWAP(s16, sx, sz);
- break;
- case ROTATE_180:
- i_start = zstride * (sz - 1) + sx - 1;
- i_step_x = -xstride;
- i_step_z = -zstride;
- break;
- case ROTATE_270:
- i_start = zstride * (sz - 1);
- i_step_x = -zstride;
- i_step_z = xstride;
- SWAP(s16, sx, sz);
- break;
- default:
- i_start = 0;
- i_step_x = xstride;
- i_step_z = zstride;
- }
- s16 y_map = p.Y;
- for (s16 y = 0; y != sy; y++) {
- if (slice_probs[y] != MTSCHEM_PROB_ALWAYS &&
- myrand_range(1, 255) > slice_probs[y])
- continue;
- for (s16 z = 0; z != sz; z++) {
- u32 i = z * i_step_z + y * ystride + i_start;
- for (s16 x = 0; x != sx; x++, i += i_step_x) {
- u32 vi = vm->m_area.index(p.X + x, y_map, p.Z + z);
- if (!vm->m_area.contains(vi))
- continue;
- if (schematic[i].getContent() == CONTENT_IGNORE)
- continue;
- if (schematic[i].param1 == MTSCHEM_PROB_NEVER)
- continue;
- if (!force_placement) {
- content_t c = vm->m_data[vi].getContent();
- if (c != CONTENT_AIR && c != CONTENT_IGNORE)
- continue;
- }
- if (schematic[i].param1 != MTSCHEM_PROB_ALWAYS &&
- myrand_range(1, 255) > schematic[i].param1)
- continue;
- vm->m_data[vi] = schematic[i];
- vm->m_data[vi].param1 = 0;
- if (rot)
- vm->m_data[vi].rotateAlongYAxis(ndef, rot);
- }
- }
- y_map++;
- }
- }
- void DecoSchematic::placeStructure(Map *map, v3s16 p, bool force_placement) {
- assert(schematic != NULL);
- ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
- Rotation rot = (rotation == ROTATE_RAND) ?
- (Rotation)myrand_range(ROTATE_0, ROTATE_270) : rotation;
- v3s16 s = (rot == ROTATE_90 || rot == ROTATE_270) ?
- v3s16(size.Z, size.Y, size.X) : size;
- if (flags & DECO_PLACE_CENTER_X)
- p.X -= (s.X + 1) / 2;
- if (flags & DECO_PLACE_CENTER_Y)
- p.Y -= (s.Y + 1) / 2;
- if (flags & DECO_PLACE_CENTER_Z)
- p.Z -= (s.Z + 1) / 2;
- v3s16 bp1 = getNodeBlockPos(p);
- v3s16 bp2 = getNodeBlockPos(p + s - v3s16(1,1,1));
- vm->initialEmerge(bp1, bp2);
- blitToVManip(p, vm, rot, force_placement);
- std::map<v3s16, MapBlock *> lighting_modified_blocks;
- std::map<v3s16, MapBlock *> modified_blocks;
- vm->blitBackAll(&modified_blocks);
- // TODO: Optimize this by using Mapgen::calcLighting() instead
- lighting_modified_blocks.insert(modified_blocks.begin(), modified_blocks.end());
- map->updateLighting(lighting_modified_blocks, modified_blocks);
- MapEditEvent event;
- event.type = MEET_OTHER;
- for (std::map<v3s16, MapBlock *>::iterator
- it = modified_blocks.begin();
- it != modified_blocks.end(); ++it)
- event.modified_blocks.insert(it->first);
- map->dispatchEvent(&event);
- }
- bool DecoSchematic::loadSchematicFile() {
- content_t cignore = CONTENT_IGNORE;
- bool have_cignore = false;
- std::ifstream is(filename.c_str(), std::ios_base::binary);
- u32 signature = readU32(is);
- if (signature != MTSCHEM_FILE_SIGNATURE) {
- errorstream << "loadSchematicFile: invalid schematic "
- "file" << std::endl;
- return false;
- }
- u16 version = readU16(is);
- if (version > MTSCHEM_FILE_VER_HIGHEST_READ) {
- errorstream << "loadSchematicFile: unsupported schematic "
- "file version" << std::endl;
- return false;
- }
- size = readV3S16(is);
- delete []slice_probs;
- slice_probs = new u8[size.Y];
- if (version >= 3) {
- for (int y = 0; y != size.Y; y++)
- slice_probs[y] = readU8(is);
- } else {
- for (int y = 0; y != size.Y; y++)
- slice_probs[y] = MTSCHEM_PROB_ALWAYS;
- }
- int nodecount = size.X * size.Y * size.Z;
- u16 nidmapcount = readU16(is);
- node_names = new std::vector<std::string>;
- for (int i = 0; i != nidmapcount; i++) {
- std::string name = deSerializeString(is);
- if (name == "ignore") {
- name = "air";
- cignore = i;
- have_cignore = true;
- }
- node_names->push_back(name);
- }
- delete []schematic;
- schematic = new MapNode[nodecount];
- MapNode::deSerializeBulk(is, SER_FMT_VER_HIGHEST_READ, schematic,
- nodecount, 2, 2, true);
- if (version == 1) { // fix up the probability values
- for (int i = 0; i != nodecount; i++) {
- if (schematic[i].param1 == 0)
- schematic[i].param1 = MTSCHEM_PROB_ALWAYS;
- if (have_cignore && schematic[i].getContent() == cignore)
- schematic[i].param1 = MTSCHEM_PROB_NEVER;
- }
- }
- return true;
- }
- /*
- Minetest Schematic File Format
- All values are stored in big-endian byte order.
- [u32] signature: 'MTSM'
- [u16] version: 3
- [u16] size X
- [u16] size Y
- [u16] size Z
- For each Y:
- [u8] slice probability value
- [Name-ID table] Name ID Mapping Table
- [u16] name-id count
- For each name-id mapping:
- [u16] name length
- [u8[]] name
- ZLib deflated {
- For each node in schematic: (for z, y, x)
- [u16] content
- For each node in schematic:
- [u8] probability of occurance (param1)
- For each node in schematic:
- [u8] param2
- }
- Version changes:
- 1 - Initial version
- 2 - Fixed messy never/always place; 0 probability is now never, 0xFF is always
- 3 - Added y-slice probabilities; this allows for variable height structures
- */
- void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
- std::ostringstream ss(std::ios_base::binary);
- writeU32(ss, MTSCHEM_FILE_SIGNATURE); // signature
- writeU16(ss, MTSCHEM_FILE_VER_HIGHEST_WRITE); // version
- writeV3S16(ss, size); // schematic size
- for (int y = 0; y != size.Y; y++) // Y slice probabilities
- writeU8(ss, slice_probs[y]);
- std::vector<content_t> usednodes;
- int nodecount = size.X * size.Y * size.Z;
- build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
- u16 numids = usednodes.size();
- writeU16(ss, numids); // name count
- for (int i = 0; i != numids; i++)
- ss << serializeString(ndef->get(usednodes[i]).name); // node names
- // compressed bulk node data
- MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE, schematic,
- nodecount, 2, 2, true);
- fs::safeWriteToFile(filename, ss.str());
- }
- void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
- std::vector<content_t> *usednodes) {
- std::map<content_t, content_t> nodeidmap;
- content_t numids = 0;
- for (u32 i = 0; i != nodecount; i++) {
- content_t id;
- content_t c = nodes[i].getContent();
- std::map<content_t, content_t>::const_iterator it = nodeidmap.find(c);
- if (it == nodeidmap.end()) {
- id = numids;
- numids++;
- usednodes->push_back(c);
- nodeidmap.insert(std::make_pair(c, id));
- } else {
- id = it->second;
- }
- nodes[i].setContent(id);
- }
- }
- bool DecoSchematic::getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2) {
- ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
- v3s16 bp1 = getNodeBlockPos(p1);
- v3s16 bp2 = getNodeBlockPos(p2);
- vm->initialEmerge(bp1, bp2);
- size = p2 - p1 + 1;
- slice_probs = new u8[size.Y];
- for (s16 y = 0; y != size.Y; y++)
- slice_probs[y] = MTSCHEM_PROB_ALWAYS;
- schematic = new MapNode[size.X * size.Y * size.Z];
- u32 i = 0;
- for (s16 z = p1.Z; z <= p2.Z; z++)
- for (s16 y = p1.Y; y <= p2.Y; y++) {
- u32 vi = vm->m_area.index(p1.X, y, z);
- for (s16 x = p1.X; x <= p2.X; x++, i++, vi++) {
- schematic[i] = vm->m_data[vi];
- schematic[i].param1 = MTSCHEM_PROB_ALWAYS;
- }
- }
- delete vm;
- return true;
- }
- void DecoSchematic::applyProbabilities(v3s16 p0,
- std::vector<std::pair<v3s16, u8> > *plist,
- std::vector<std::pair<s16, u8> > *splist) {
- for (size_t i = 0; i != plist->size(); i++) {
- v3s16 p = (*plist)[i].first - p0;
- int index = p.Z * (size.Y * size.X) + p.Y * size.X + p.X;
- if (index < size.Z * size.Y * size.X) {
- u8 prob = (*plist)[i].second;
- schematic[index].param1 = prob;
- // trim unnecessary node names from schematic
- if (prob == MTSCHEM_PROB_NEVER)
- schematic[index].setContent(CONTENT_AIR);
- }
- }
- for (size_t i = 0; i != splist->size(); i++) {
- s16 y = (*splist)[i].first - p0.Y;
- slice_probs[y] = (*splist)[i].second;
- }
- }
- ///////////////////////////////////////////////////////////////////////////////
- Mapgen::Mapgen() {
- seed = 0;
- water_level = 0;
- generating = false;
- id = -1;
- vm = NULL;
- ndef = NULL;
- heightmap = NULL;
- biomemap = NULL;
- for (unsigned int i = 0; i != NUM_GEN_NOTIFY; i++)
- gen_notifications[i] = new std::vector<v3s16>;
- }
- Mapgen::~Mapgen() {
- for (unsigned int i = 0; i != NUM_GEN_NOTIFY; i++)
- delete gen_notifications[i];
- }
- // Returns Y one under area minimum if not found
- s16 Mapgen::findGroundLevelFull(v2s16 p2d) {
- v3s16 em = vm->m_area.getExtent();
- s16 y_nodes_max = vm->m_area.MaxEdge.Y;
- s16 y_nodes_min = vm->m_area.MinEdge.Y;
- u32 i = vm->m_area.index(p2d.X, y_nodes_max, p2d.Y);
- s16 y;
- for (y = y_nodes_max; y >= y_nodes_min; y--) {
- MapNode &n = vm->m_data[i];
- if (ndef->get(n).walkable)
- break;
- vm->m_area.add_y(em, i, -1);
- }
- return (y >= y_nodes_min) ? y : y_nodes_min - 1;
- }
- s16 Mapgen::findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax) {
- v3s16 em = vm->m_area.getExtent();
- u32 i = vm->m_area.index(p2d.X, ymax, p2d.Y);
- s16 y;
- for (y = ymax; y >= ymin; y--) {
- MapNode &n = vm->m_data[i];
- if (ndef->get(n).walkable)
- break;
- vm->m_area.add_y(em, i, -1);
- }
- return y;
- }
- void Mapgen::updateHeightmap(v3s16 nmin, v3s16 nmax) {
- if (!heightmap)
- return;
- //TimeTaker t("Mapgen::updateHeightmap", NULL, PRECISION_MICRO);
- int index = 0;
- for (s16 z = nmin.Z; z <= nmax.Z; z++) {
- for (s16 x = nmin.X; x <= nmax.X; x++, index++) {
- s16 y = findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
- // if the values found are out of range, trust the old heightmap
- if (y == nmax.Y && heightmap[index] > nmax.Y)
- continue;
- if (y == nmin.Y - 1 && heightmap[index] < nmin.Y)
- continue;
- heightmap[index] = y;
- }
- }
- //printf("updateHeightmap: %dus\n", t.stop());
- }
- void Mapgen::updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax) {
- bool isliquid, wasliquid;
- v3s16 em = vm->m_area.getExtent();
- for (s16 z = nmin.Z; z <= nmax.Z; z++) {
- for (s16 x = nmin.X; x <= nmax.X; x++) {
- wasliquid = true;
- u32 i = vm->m_area.index(x, nmax.Y, z);
- for (s16 y = nmax.Y; y >= nmin.Y; y--) {
- isliquid = ndef->get(vm->m_data[i]).isLiquid();
- // there was a change between liquid and nonliquid, add to queue.
- if (isliquid != wasliquid)
- trans_liquid->push_back(v3s16(x, y, z));
- wasliquid = isliquid;
- vm->m_area.add_y(em, i, -1);
- }
- }
- }
- }
- void Mapgen::setLighting(v3s16 nmin, v3s16 nmax, u8 light) {
- ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
- VoxelArea a(nmin, nmax);
- for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
- for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
- u32 i = vm->m_area.index(a.MinEdge.X, y, z);
- for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++)
- vm->m_data[i].param1 = light;
- }
- }
- }
- void Mapgen::lightSpread(VoxelArea &a, v3s16 p, u8 light) {
- if (light <= 1 || !a.contains(p))
- return;
- u32 vi = vm->m_area.index(p);
- MapNode &nn = vm->m_data[vi];
- light--;
- // should probably compare masked, but doesn't seem to make a difference
- if (light <= nn.param1 || !ndef->get(nn).light_propagates)
- return;
- nn.param1 = light;
- lightSpread(a, p + v3s16(0, 0, 1), light);
- lightSpread(a, p + v3s16(0, 1, 0), light);
- lightSpread(a, p + v3s16(1, 0, 0), light);
- lightSpread(a, p - v3s16(0, 0, 1), light);
- lightSpread(a, p - v3s16(0, 1, 0), light);
- lightSpread(a, p - v3s16(1, 0, 0), light);
- }
- void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax) {
- VoxelArea a(nmin, nmax);
- bool block_is_underground = (water_level >= nmax.Y);
- ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
- //TimeTaker t("updateLighting");
- // first, send vertical rays of sunshine downward
- v3s16 em = vm->m_area.getExtent();
- for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
- for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++) {
- // see if we can get a light value from the overtop
- u32 i = vm->m_area.index(x, a.MaxEdge.Y + 1, z);
- if (vm->m_data[i].getContent() == CONTENT_IGNORE) {
- if (block_is_underground)
- continue;
- } else if ((vm->m_data[i].param1 & 0x0F) != LIGHT_SUN) {
- continue;
- }
- vm->m_area.add_y(em, i, -1);
- for (int y = a.MaxEdge.Y; y >= a.MinEdge.Y; y--) {
- MapNode &n = vm->m_data[i];
- if (!ndef->get(n).sunlight_propagates)
- break;
- n.param1 = LIGHT_SUN;
- vm->m_area.add_y(em, i, -1);
- }
- }
- }
- // now spread the sunlight and light up any sources
- for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
- for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
- u32 i = vm->m_area.index(a.MinEdge.X, y, z);
- for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++) {
- MapNode &n = vm->m_data[i];
- if (n.getContent() == CONTENT_IGNORE ||
- !ndef->get(n).light_propagates)
- continue;
- u8 light_produced = ndef->get(n).light_source & 0x0F;
- if (light_produced)
- n.param1 = light_produced;
- u8 light = n.param1 & 0x0F;
- if (light) {
- lightSpread(a, v3s16(x, y, z + 1), light - 1);
- lightSpread(a, v3s16(x, y + 1, z ), light - 1);
- lightSpread(a, v3s16(x + 1, y, z ), light - 1);
- lightSpread(a, v3s16(x, y, z - 1), light - 1);
- lightSpread(a, v3s16(x, y - 1, z ), light - 1);
- lightSpread(a, v3s16(x - 1, y, z ), light - 1);
- }
- }
- }
- }
- //printf("updateLighting: %dms\n", t.stop());
- }
- void Mapgen::calcLightingOld(v3s16 nmin, v3s16 nmax) {
- enum LightBank banks[2] = {LIGHTBANK_DAY, LIGHTBANK_NIGHT};
- VoxelArea a(nmin, nmax);
- bool block_is_underground = (water_level > nmax.Y);
- bool sunlight = !block_is_underground;
- ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
- for (int i = 0; i < 2; i++) {
- enum LightBank bank = banks[i];
- std::set<v3s16> light_sources;
- std::map<v3s16, u8> unlight_from;
- voxalgo::clearLightAndCollectSources(*vm, a, bank, ndef,
- light_sources, unlight_from);
- voxalgo::propagateSunlight(*vm, a, sunlight, light_sources, ndef);
- vm->unspreadLight(bank, unlight_from, light_sources, ndef);
- vm->spreadLight(bank, light_sources, ndef);
- }
- }
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