3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 //#include "serverobject.h"
28 #include "content_sao.h"
30 #include "content_mapnode.h" // For content_mapnode_get_new_name
31 #include "voxelalgorithms.h"
33 #include "settings.h" // For g_settings
34 #include "main.h" // For g_profiler
36 #include "mapgen_v6.h"
37 #include "mapgen_v7.h"
38 #include "util/serialize.h"
40 FlagDesc flagdesc_mapgen[] = {
43 {"dungeons", MG_DUNGEONS},
44 {"v6_jungles", MGV6_JUNGLES},
45 {"v6_biome_blend", MGV6_BIOME_BLEND},
47 {"nolight", MG_NOLIGHT},
51 FlagDesc flagdesc_ore[] = {
52 {"absheight", OREFLAG_ABSHEIGHT},
53 {"scatter_noisedensity", OREFLAG_DENSITY},
54 {"claylike_nodeisnt", OREFLAG_NODEISNT},
58 FlagDesc flagdesc_deco_schematic[] = {
59 {"place_center_x", DECO_PLACE_CENTER_X},
60 {"place_center_y", DECO_PLACE_CENTER_Y},
61 {"place_center_z", DECO_PLACE_CENTER_Z},
65 ///////////////////////////////////////////////////////////////////////////////
68 Ore *createOre(OreType type) {
71 return new OreScatter;
74 //case ORE_CLAYLIKE: //TODO: implement this!
75 // return new OreClaylike;
88 void Ore::resolveNodeNames(INodeDefManager *ndef) {
89 if (ore == CONTENT_IGNORE) {
90 ore = ndef->getId(ore_name);
91 if (ore == CONTENT_IGNORE) {
92 errorstream << "Ore::resolveNodeNames: ore node '"
93 << ore_name << "' not defined";
95 wherein = CONTENT_AIR;
99 if (wherein == CONTENT_IGNORE) {
100 wherein = ndef->getId(wherein_name);
101 if (wherein == CONTENT_IGNORE) {
102 errorstream << "Ore::resolveNodeNames: wherein node '"
103 << wherein_name << "' not defined";
105 wherein = CONTENT_AIR;
111 void Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
114 in_range |= (nmin.Y <= height_max && nmax.Y >= height_min);
115 if (flags & OREFLAG_ABSHEIGHT)
116 in_range |= (nmin.Y >= -height_max && nmax.Y <= -height_min) << 1;
121 if (in_range & ORE_RANGE_MIRROR) {
122 ymin = MYMAX(nmin.Y, -height_max);
123 ymax = MYMIN(nmax.Y, -height_min);
125 ymin = MYMAX(nmin.Y, height_min);
126 ymax = MYMIN(nmax.Y, height_max);
128 if (clust_size >= ymax - ymin + 1)
133 generate(mg->vm, mg->seed, blockseed, nmin, nmax);
137 void OreScatter::generate(ManualMapVoxelManipulator *vm, int seed,
138 u32 blockseed, v3s16 nmin, v3s16 nmax) {
139 PseudoRandom pr(blockseed);
140 MapNode n_ore(ore, 0, ore_param2);
142 int volume = (nmax.X - nmin.X + 1) *
143 (nmax.Y - nmin.Y + 1) *
144 (nmax.Z - nmin.Z + 1);
145 int csize = clust_size;
146 int orechance = (csize * csize * csize) / clust_num_ores;
147 int nclusters = volume / clust_scarcity;
149 for (int i = 0; i != nclusters; i++) {
150 int x0 = pr.range(nmin.X, nmax.X - csize + 1);
151 int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
152 int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);
154 if (np && (NoisePerlin3D(np, x0, y0, z0, seed) < nthresh))
157 for (int z1 = 0; z1 != csize; z1++)
158 for (int y1 = 0; y1 != csize; y1++)
159 for (int x1 = 0; x1 != csize; x1++) {
160 if (pr.range(1, orechance) != 1)
163 u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
164 if (vm->m_data[i].getContent() == wherein)
165 vm->m_data[i] = n_ore;
171 void OreSheet::generate(ManualMapVoxelManipulator *vm, int seed,
172 u32 blockseed, v3s16 nmin, v3s16 nmax) {
173 PseudoRandom pr(blockseed + 4234);
174 MapNode n_ore(ore, 0, ore_param2);
176 int max_height = clust_size;
177 int y_start = pr.range(nmin.Y, nmax.Y - max_height);
180 int sx = nmax.X - nmin.X + 1;
181 int sz = nmax.Z - nmin.Z + 1;
182 noise = new Noise(np, 0, sx, sz);
184 noise->seed = seed + y_start;
185 noise->perlinMap2D(nmin.X, nmin.Z);
188 for (int z = nmin.Z; z <= nmax.Z; z++)
189 for (int x = nmin.X; x <= nmax.X; x++) {
190 float noiseval = noise->result[index++];
191 if (noiseval < nthresh)
194 int height = max_height * (1. / pr.range(1, 3));
195 int y0 = y_start + np->scale * noiseval; //pr.range(1, 3) - 1;
196 int y1 = y0 + height;
197 for (int y = y0; y != y1; y++) {
198 u32 i = vm->m_area.index(x, y, z);
199 if (!vm->m_area.contains(i))
202 if (vm->m_data[i].getContent() == wherein)
203 vm->m_data[i] = n_ore;
209 ///////////////////////////////////////////////////////////////////////////////
212 Decoration *createDecoration(DecorationType type) {
215 return new DecoSimple;
217 return new DecoSchematic;
219 // return new DecoLSystem;
226 Decoration::Decoration() {
234 Decoration::~Decoration() {
239 void Decoration::resolveNodeNames(INodeDefManager *ndef) {
242 if (c_place_on == CONTENT_IGNORE)
243 c_place_on = ndef->getId(place_on_name);
247 void Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
248 PseudoRandom ps(blockseed + 53);
249 int carea_size = nmax.X - nmin.X + 1;
251 // Divide area into parts
252 if (carea_size % sidelen) {
253 errorstream << "Decoration::placeDeco: chunk size is not divisible by "
254 "sidelen; setting sidelen to " << carea_size << std::endl;
255 sidelen = carea_size;
258 s16 divlen = carea_size / sidelen;
259 int area = sidelen * sidelen;
261 for (s16 z0 = 0; z0 < divlen; z0++)
262 for (s16 x0 = 0; x0 < divlen; x0++) {
263 v2s16 p2d_center( // Center position of part of division
264 nmin.X + sidelen / 2 + sidelen * x0,
265 nmin.Z + sidelen / 2 + sidelen * z0
267 v2s16 p2d_min( // Minimum edge of part of division
268 nmin.X + sidelen * x0,
269 nmin.Z + sidelen * z0
271 v2s16 p2d_max( // Maximum edge of part of division
272 nmin.X + sidelen + sidelen * x0 - 1,
273 nmin.Z + sidelen + sidelen * z0 - 1
276 // Amount of decorations
278 NoisePerlin2D(np, p2d_center.X, p2d_center.Y, mapseed) :
280 u32 deco_count = area * MYMAX(nval, 0.f);
282 for (u32 i = 0; i < deco_count; i++) {
283 s16 x = ps.range(p2d_min.X, p2d_max.X);
284 s16 z = ps.range(p2d_min.Y, p2d_max.Y);
286 int mapindex = carea_size * (z - nmin.Z) + (x - nmin.X);
288 s16 y = mg->heightmap ?
289 mg->heightmap[mapindex] :
290 mg->findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
292 if (y < nmin.Y || y > nmax.Y)
295 int height = getHeight();
296 int max_y = nmax.Y;// + MAP_BLOCKSIZE - 1;
297 if (y + 1 + height > max_y) {
300 printf("Decoration at (%d %d %d) cut off\n", x, y, z);
302 JMutexAutoLock cutofflock(cutoff_mutex);
303 cutoffs.push_back(CutoffData(x, y, z, height));
308 std::set<u8>::iterator iter;
311 iter = biomes.find(mg->biomemap[mapindex]);
312 if (iter == biomes.end())
317 generate(mg, &ps, max_y, v3s16(x, y, z));
324 void Decoration::placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
325 PseudoRandom pr(blockseed + 53);
326 std::vector<CutoffData> handled_cutoffs;
328 // Copy over the cutoffs we're interested in so we don't needlessly hold a lock
330 JMutexAutoLock cutofflock(cutoff_mutex);
331 for (std::list<CutoffData>::iterator i = cutoffs.begin();
332 i != cutoffs.end(); ++i) {
333 CutoffData cutoff = *i;
335 s16 height = cutoff.height;
336 if (p.X < nmin.X || p.X > nmax.X ||
337 p.Z < nmin.Z || p.Z > nmax.Z)
339 if (p.Y + height < nmin.Y || p.Y > nmax.Y)
342 handled_cutoffs.push_back(cutoff);
346 // Generate the cutoffs
347 for (size_t i = 0; i != handled_cutoffs.size(); i++) {
348 v3s16 p = handled_cutoffs[i].p;
349 s16 height = handled_cutoffs[i].height;
351 if (p.Y + height > nmax.Y) {
352 //printf("Decoration at (%d %d %d) cut off again!\n", p.X, p.Y, p.Z);
353 cuttoffs.push_back(v3s16(p.X, p.Y, p.Z));
356 generate(mg, &pr, nmax.Y, nmin.Y - p.Y, v3s16(p.X, nmin.Y, p.Z));
359 // Remove cutoffs that were handled from the cutoff list
361 JMutexAutoLock cutofflock(cutoff_mutex);
362 for (std::list<CutoffData>::iterator i = cutoffs.begin();
363 i != cutoffs.end(); ++i) {
365 for (size_t j = 0; j != handled_cutoffs.size(); j++) {
366 CutoffData coff = *i;
367 if (coff.p == handled_cutoffs[j].p)
368 i = cutoffs.erase(i);
376 ///////////////////////////////////////////////////////////////////////////////
379 void DecoSimple::resolveNodeNames(INodeDefManager *ndef) {
380 Decoration::resolveNodeNames(ndef);
382 if (c_deco == CONTENT_IGNORE) {
383 c_deco = ndef->getId(deco_name);
384 if (c_deco == CONTENT_IGNORE) {
385 errorstream << "DecoSimple::resolveNodeNames: decoration node '"
386 << deco_name << "' not defined" << std::endl;
387 c_deco = CONTENT_AIR;
390 if (c_spawnby == CONTENT_IGNORE) {
391 c_spawnby = ndef->getId(spawnby_name);
392 if (c_spawnby == CONTENT_IGNORE) {
393 errorstream << "DecoSimple::resolveNodeNames: spawnby node '"
394 << deco_name << "' not defined" << std::endl;
396 c_spawnby = CONTENT_AIR;
400 if (c_decolist.size())
403 for (size_t i = 0; i != decolist_names.size(); i++) {
404 content_t c = ndef->getId(decolist_names[i]);
405 if (c == CONTENT_IGNORE) {
406 errorstream << "DecoSimple::resolveNodeNames: decolist node '"
407 << decolist_names[i] << "' not defined" << std::endl;
410 c_decolist.push_back(c);
415 void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
416 ManualMapVoxelManipulator *vm = mg->vm;
418 u32 vi = vm->m_area.index(p);
419 if (vm->m_data[vi].getContent() != c_place_on &&
420 c_place_on != CONTENT_IGNORE)
423 if (nspawnby != -1) {
425 v3s16 dirs[8] = { // a Moore neighborhood
436 for (int i = 0; i != 8; i++) {
437 u32 index = vm->m_area.index(p + dirs[i]);
438 if (vm->m_area.contains(index) &&
439 vm->m_data[index].getContent() == c_spawnby)
443 if (nneighs < nspawnby)
447 size_t ndecos = c_decolist.size();
448 content_t c_place = ndecos ? c_decolist[pr->range(0, ndecos - 1)] : c_deco;
450 s16 height = (deco_height_max > 0) ?
451 pr->range(deco_height, deco_height_max) : deco_height;
453 height = MYMIN(height, max_y - p.Y);
455 v3s16 em = vm->m_area.getExtent();
456 for (int i = 0; i < height; i++) {
457 vm->m_area.add_y(em, vi, 1);
459 content_t c = vm->m_data[vi].getContent();
460 if (c != CONTENT_AIR && c != CONTENT_IGNORE)
463 vm->m_data[vi] = MapNode(c_place);
468 int DecoSimple::getHeight() {
469 return (deco_height_max > 0) ? deco_height_max : deco_height;
473 std::string DecoSimple::getName() {
478 ///////////////////////////////////////////////////////////////////////////////
481 DecoSchematic::DecoSchematic() {
485 size = v3s16(0, 0, 0);
489 DecoSchematic::~DecoSchematic() {
495 void DecoSchematic::resolveNodeNames(INodeDefManager *ndef) {
496 Decoration::resolveNodeNames(ndef);
498 if (filename.empty())
502 errorstream << "DecoSchematic::resolveNodeNames: node name list was "
503 "not created" << std::endl;
507 for (size_t i = 0; i != node_names->size(); i++) {
508 content_t c = ndef->getId(node_names->at(i));
509 if (c == CONTENT_IGNORE) {
510 errorstream << "DecoSchematic::resolveNodeNames: node '"
511 << node_names->at(i) << "' not defined" << std::endl;
514 c_nodes.push_back(c);
517 for (int i = 0; i != size.X * size.Y * size.Z; i++)
518 schematic[i].setContent(c_nodes[schematic[i].getContent()]);
525 void DecoSchematic::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
526 ManualMapVoxelManipulator *vm = mg->vm;
528 if (flags & DECO_PLACE_CENTER_X)
529 p.X -= (size.X + 1) / 2;
530 if (flags & DECO_PLACE_CENTER_Y)
531 p.Y -= (size.Y + 1) / 2;
532 if (flags & DECO_PLACE_CENTER_Z)
533 p.Z -= (size.Z + 1) / 2;
535 u32 vi = vm->m_area.index(p);
536 if (vm->m_data[vi].getContent() != c_place_on &&
537 c_place_on != CONTENT_IGNORE)
540 Rotation rot = (rotation == ROTATE_RAND) ?
541 (Rotation)pr->range(ROTATE_0, ROTATE_270) : rotation;
543 blitToVManip(p, vm, rot, false);
547 int DecoSchematic::getHeight() {
552 std::string DecoSchematic::getName() {
557 void DecoSchematic::blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
558 Rotation rot, bool force_placement) {
560 int ystride = size.X;
561 int zstride = size.X * size.Y;
567 int i_start, i_step_x, i_step_z;
576 i_start = zstride * (sz - 1) + sx - 1;
581 i_start = zstride * (sz - 1);
592 for (s16 z = 0; z != sz; z++)
593 for (s16 y = 0; y != sy; y++) {
594 u32 i = z * i_step_z + y * ystride + i_start;
595 for (s16 x = 0; x != sx; x++, i += i_step_x) {
596 u32 vi = vm->m_area.index(p.X + x, p.Y + y, p.Z + z);
597 if (!vm->m_area.contains(vi))
600 if (schematic[i].getContent() == CONTENT_IGNORE)
603 if (!force_placement) {
604 content_t c = vm->m_data[vi].getContent();
605 if (c != CONTENT_AIR && c != CONTENT_IGNORE)
609 if (schematic[i].param1 && myrand_range(1, 256) > schematic[i].param1)
612 vm->m_data[vi] = schematic[i];
613 vm->m_data[vi].param1 = 0;
616 vm->m_data[vi].rotateAlongYAxis(ndef, rot);
622 void DecoSchematic::placeStructure(Map *map, v3s16 p) {
623 assert(schematic != NULL);
624 ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
626 Rotation rot = (rotation == ROTATE_RAND) ?
627 (Rotation)myrand_range(ROTATE_0, ROTATE_270) : rotation;
629 v3s16 s = (rot == ROTATE_90 || rot == ROTATE_270) ?
630 v3s16(size.Z, size.Y, size.X) : size;
632 if (flags & DECO_PLACE_CENTER_X)
633 p.X -= (s.X + 1) / 2;
634 if (flags & DECO_PLACE_CENTER_Y)
635 p.Y -= (s.Y + 1) / 2;
636 if (flags & DECO_PLACE_CENTER_Z)
637 p.Z -= (s.Z + 1) / 2;
639 v3s16 bp1 = getNodeBlockPos(p);
640 v3s16 bp2 = getNodeBlockPos(p + s - v3s16(1,1,1));
641 vm->initialEmerge(bp1, bp2);
643 blitToVManip(p, vm, rot, true);
645 std::map<v3s16, MapBlock *> lighting_modified_blocks;
646 std::map<v3s16, MapBlock *> modified_blocks;
647 vm->blitBackAll(&modified_blocks);
649 // TODO: Optimize this by using Mapgen::calcLighting() instead
650 lighting_modified_blocks.insert(modified_blocks.begin(), modified_blocks.end());
651 map->updateLighting(lighting_modified_blocks, modified_blocks);
654 event.type = MEET_OTHER;
655 for (std::map<v3s16, MapBlock *>::iterator
656 it = modified_blocks.begin();
657 it != modified_blocks.end(); ++it)
658 event.modified_blocks.insert(it->first);
660 map->dispatchEvent(&event);
664 bool DecoSchematic::loadSchematicFile() {
665 std::ifstream is(filename.c_str(), std::ios_base::binary);
667 u32 signature = readU32(is);
668 if (signature != MTSCHEM_FILE_SIGNATURE) {
669 errorstream << "loadSchematicFile: invalid schematic "
674 u16 version = readU16(is);
676 errorstream << "loadSchematicFile: unsupported schematic "
677 "file version" << std::endl;
681 size = readV3S16(is);
682 int nodecount = size.X * size.Y * size.Z;
684 u16 nidmapcount = readU16(is);
686 node_names = new std::vector<std::string>;
687 for (int i = 0; i != nidmapcount; i++) {
688 std::string name = deSerializeString(is);
689 node_names->push_back(name);
693 schematic = new MapNode[nodecount];
694 MapNode::deSerializeBulk(is, SER_FMT_VER_HIGHEST_READ, schematic,
695 nodecount, 2, 2, true);
702 Minetest Schematic File Format
704 All values are stored in big-endian byte order.
705 [u32] signature: 'MTSM'
710 [Name-ID table] Name ID Mapping Table
712 For each name-id mapping:
716 For each node in schematic: (for z, y, x)
718 For each node in schematic:
719 [u8] probability of occurance (param1)
720 For each node in schematic:
724 void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
725 std::ofstream os(filename.c_str(), std::ios_base::binary);
727 writeU32(os, MTSCHEM_FILE_SIGNATURE); // signature
728 writeU16(os, 1); // version
729 writeV3S16(os, size); // schematic size
731 std::vector<content_t> usednodes;
732 int nodecount = size.X * size.Y * size.Z;
733 build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
735 u16 numids = usednodes.size();
736 writeU16(os, numids); // name count
737 for (int i = 0; i != numids; i++)
738 os << serializeString(ndef->get(usednodes[i]).name); // node names
740 // compressed bulk node data
741 MapNode::serializeBulk(os, SER_FMT_VER_HIGHEST_WRITE, schematic,
742 nodecount, 2, 2, true);
746 void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
747 std::vector<content_t> *usednodes) {
748 std::map<content_t, content_t> nodeidmap;
749 content_t numids = 0;
751 for (u32 i = 0; i != nodecount; i++) {
753 content_t c = nodes[i].getContent();
755 std::map<content_t, content_t>::const_iterator it = nodeidmap.find(c);
756 if (it == nodeidmap.end()) {
760 usednodes->push_back(c);
761 nodeidmap.insert(std::make_pair(c, id));
765 nodes[i].setContent(id);
770 bool DecoSchematic::getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2) {
771 ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
773 v3s16 bp1 = getNodeBlockPos(p1);
774 v3s16 bp2 = getNodeBlockPos(p2);
775 vm->initialEmerge(bp1, bp2);
778 schematic = new MapNode[size.X * size.Y * size.Z];
781 for (s16 z = p1.Z; z <= p2.Z; z++)
782 for (s16 y = p1.Y; y <= p2.Y; y++) {
783 u32 vi = vm->m_area.index(p1.X, y, z);
784 for (s16 x = p1.X; x <= p2.X; x++, i++, vi++) {
785 schematic[i] = vm->m_data[vi];
786 schematic[i].param1 = 0;
795 void DecoSchematic::applyProbabilities(std::vector<std::pair<v3s16, s16> > *plist, v3s16 p0) {
796 for (size_t i = 0; i != plist->size(); i++) {
797 v3s16 p = (*plist)[i].first - p0;
798 int index = p.Z * (size.Y * size.X) + p.Y * size.X + p.X;
799 if (index < size.Z * size.Y * size.X) {
800 s16 prob = (*plist)[i].second;
802 schematic[index].param1 = prob;
804 schematic[index].setContent(CONTENT_IGNORE);
810 ///////////////////////////////////////////////////////////////////////////////
825 // Returns Y one under area minimum if not found
826 s16 Mapgen::findGroundLevelFull(v2s16 p2d) {
827 v3s16 em = vm->m_area.getExtent();
828 s16 y_nodes_max = vm->m_area.MaxEdge.Y;
829 s16 y_nodes_min = vm->m_area.MinEdge.Y;
830 u32 i = vm->m_area.index(p2d.X, y_nodes_max, p2d.Y);
833 for (y = y_nodes_max; y >= y_nodes_min; y--) {
834 MapNode &n = vm->m_data[i];
835 if (ndef->get(n).walkable)
838 vm->m_area.add_y(em, i, -1);
840 return (y >= y_nodes_min) ? y : y_nodes_min - 1;
844 s16 Mapgen::findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax) {
845 v3s16 em = vm->m_area.getExtent();
846 u32 i = vm->m_area.index(p2d.X, ymax, p2d.Y);
849 for (y = ymax; y >= ymin; y--) {
850 MapNode &n = vm->m_data[i];
851 if (ndef->get(n).walkable)
854 vm->m_area.add_y(em, i, -1);
860 void Mapgen::updateHeightmap(v3s16 nmin, v3s16 nmax) {
864 //TimeTaker t("Mapgen::updateHeightmap", NULL, PRECISION_MICRO);
866 for (s16 z = nmin.Z; z <= nmax.Z; z++) {
867 for (s16 x = nmin.X; x <= nmax.X; x++, index++) {
868 s16 y = findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
870 // if the values found are out of range, trust the old heightmap
871 if (y == nmax.Y && heightmap[index] > nmax.Y)
873 if (y == nmin.Y - 1 && heightmap[index] < nmin.Y)
876 heightmap[index] = y;
879 //printf("updateHeightmap: %dus\n", t.stop());
883 void Mapgen::updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax) {
884 bool isliquid, wasliquid, rare;
885 v3s16 em = vm->m_area.getExtent();
886 rare = g_settings->getBool("liquid_finite");
889 for (s16 z = nmin.Z; z <= nmax.Z; z++) {
890 for (s16 x = nmin.X; x <= nmax.X; x++) {
893 u32 i = vm->m_area.index(x, nmax.Y, z);
894 for (s16 y = nmax.Y; y >= nmin.Y; y--) {
895 isliquid = ndef->get(vm->m_data[i]).isLiquid();
897 // there was a change between liquid and nonliquid, add to queue. no need to add every with liquid_finite
898 if (isliquid != wasliquid && (!rare || !(rarecnt++ % 36)))
899 trans_liquid->push_back(v3s16(x, y, z));
901 wasliquid = isliquid;
902 vm->m_area.add_y(em, i, -1);
909 void Mapgen::setLighting(v3s16 nmin, v3s16 nmax, u8 light) {
910 ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
911 VoxelArea a(nmin, nmax);
913 for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
914 for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
915 u32 i = vm->m_area.index(a.MinEdge.X, y, z);
916 for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++)
917 vm->m_data[i].param1 = light;
923 void Mapgen::lightSpread(VoxelArea &a, v3s16 p, u8 light) {
924 if (light <= 1 || !a.contains(p))
927 u32 vi = vm->m_area.index(p);
928 MapNode &nn = vm->m_data[vi];
931 // should probably compare masked, but doesn't seem to make a difference
932 if (light <= nn.param1 || !ndef->get(nn).light_propagates)
937 lightSpread(a, p + v3s16(0, 0, 1), light);
938 lightSpread(a, p + v3s16(0, 1, 0), light);
939 lightSpread(a, p + v3s16(1, 0, 0), light);
940 lightSpread(a, p - v3s16(0, 0, 1), light);
941 lightSpread(a, p - v3s16(0, 1, 0), light);
942 lightSpread(a, p - v3s16(1, 0, 0), light);
946 void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax) {
947 VoxelArea a(nmin, nmax);
948 bool block_is_underground = (water_level >= nmax.Y);
950 ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
951 //TimeTaker t("updateLighting");
953 // first, send vertical rays of sunshine downward
954 v3s16 em = vm->m_area.getExtent();
955 for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
956 for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++) {
957 // see if we can get a light value from the overtop
958 u32 i = vm->m_area.index(x, a.MaxEdge.Y + 1, z);
959 if (vm->m_data[i].getContent() == CONTENT_IGNORE) {
960 if (block_is_underground)
962 } else if ((vm->m_data[i].param1 & 0x0F) != LIGHT_SUN) {
965 vm->m_area.add_y(em, i, -1);
967 for (int y = a.MaxEdge.Y; y >= a.MinEdge.Y; y--) {
968 MapNode &n = vm->m_data[i];
969 if (!ndef->get(n).sunlight_propagates)
971 n.param1 = LIGHT_SUN;
972 vm->m_area.add_y(em, i, -1);
977 // now spread the sunlight and light up any sources
978 for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
979 for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
980 u32 i = vm->m_area.index(a.MinEdge.X, y, z);
981 for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++) {
982 MapNode &n = vm->m_data[i];
983 if (n.getContent() == CONTENT_IGNORE ||
984 !ndef->get(n).light_propagates)
987 u8 light_produced = ndef->get(n).light_source & 0x0F;
989 n.param1 = light_produced;
991 u8 light = n.param1 & 0x0F;
993 lightSpread(a, v3s16(x, y, z + 1), light - 1);
994 lightSpread(a, v3s16(x, y + 1, z ), light - 1);
995 lightSpread(a, v3s16(x + 1, y, z ), light - 1);
996 lightSpread(a, v3s16(x, y, z - 1), light - 1);
997 lightSpread(a, v3s16(x, y - 1, z ), light - 1);
998 lightSpread(a, v3s16(x - 1, y, z ), light - 1);
1004 //printf("updateLighting: %dms\n", t.stop());
1008 void Mapgen::calcLightingOld(v3s16 nmin, v3s16 nmax) {
1009 enum LightBank banks[2] = {LIGHTBANK_DAY, LIGHTBANK_NIGHT};
1010 VoxelArea a(nmin, nmax);
1011 bool block_is_underground = (water_level > nmax.Y);
1012 bool sunlight = !block_is_underground;
1014 ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
1016 for (int i = 0; i < 2; i++) {
1017 enum LightBank bank = banks[i];
1018 std::set<v3s16> light_sources;
1019 std::map<v3s16, u8> unlight_from;
1021 voxalgo::clearLightAndCollectSources(*vm, a, bank, ndef,
1022 light_sources, unlight_from);
1023 voxalgo::propagateSunlight(*vm, a, sunlight, light_sources, ndef);
1025 vm->unspreadLight(bank, unlight_from, light_sources, ndef);
1026 vm->spreadLight(bank, light_sources, ndef);
1031 //////////////////////// Mapgen V6 parameter read/write
1033 bool MapgenV6Params::readParams(Settings *settings) {
1034 freq_desert = settings->getFloat("mgv6_freq_desert");
1035 freq_beach = settings->getFloat("mgv6_freq_beach");
1038 settings->getNoiseParams("mgv6_np_terrain_base", np_terrain_base) &&
1039 settings->getNoiseParams("mgv6_np_terrain_higher", np_terrain_higher) &&
1040 settings->getNoiseParams("mgv6_np_steepness", np_steepness) &&
1041 settings->getNoiseParams("mgv6_np_height_select", np_height_select) &&
1042 settings->getNoiseParams("mgv6_np_mud", np_mud) &&
1043 settings->getNoiseParams("mgv6_np_beach", np_beach) &&
1044 settings->getNoiseParams("mgv6_np_biome", np_biome) &&
1045 settings->getNoiseParams("mgv6_np_cave", np_cave) &&
1046 settings->getNoiseParams("mgv6_np_humidity", np_humidity) &&
1047 settings->getNoiseParams("mgv6_np_trees", np_trees) &&
1048 settings->getNoiseParams("mgv6_np_apple_trees", np_apple_trees);
1053 void MapgenV6Params::writeParams(Settings *settings) {
1054 settings->setFloat("mgv6_freq_desert", freq_desert);
1055 settings->setFloat("mgv6_freq_beach", freq_beach);
1057 settings->setNoiseParams("mgv6_np_terrain_base", np_terrain_base);
1058 settings->setNoiseParams("mgv6_np_terrain_higher", np_terrain_higher);
1059 settings->setNoiseParams("mgv6_np_steepness", np_steepness);
1060 settings->setNoiseParams("mgv6_np_height_select", np_height_select);
1061 settings->setNoiseParams("mgv6_np_mud", np_mud);
1062 settings->setNoiseParams("mgv6_np_beach", np_beach);
1063 settings->setNoiseParams("mgv6_np_biome", np_biome);
1064 settings->setNoiseParams("mgv6_np_cave", np_cave);
1065 settings->setNoiseParams("mgv6_np_humidity", np_humidity);
1066 settings->setNoiseParams("mgv6_np_trees", np_trees);
1067 settings->setNoiseParams("mgv6_np_apple_trees", np_apple_trees);
1071 bool MapgenV7Params::readParams(Settings *settings) {
1073 settings->getNoiseParams("mgv7_np_terrain_base", np_terrain_base) &&
1074 settings->getNoiseParams("mgv7_np_terrain_alt", np_terrain_alt) &&
1075 settings->getNoiseParams("mgv7_np_terrain_persist", np_terrain_persist) &&
1076 settings->getNoiseParams("mgv7_np_height_select", np_height_select) &&
1077 settings->getNoiseParams("mgv7_np_filler_depth", np_filler_depth) &&
1078 settings->getNoiseParams("mgv7_np_mount_height", np_mount_height) &&
1079 settings->getNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater) &&
1080 settings->getNoiseParams("mgv7_np_mountain", np_mountain) &&
1081 settings->getNoiseParams("mgv7_np_ridge", np_ridge);
1086 void MapgenV7Params::writeParams(Settings *settings) {
1087 settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base);
1088 settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt);
1089 settings->setNoiseParams("mgv7_np_terrain_persist", np_terrain_persist);
1090 settings->setNoiseParams("mgv7_np_height_select", np_height_select);
1091 settings->setNoiseParams("mgv7_np_filler_depth", np_filler_depth);
1092 settings->setNoiseParams("mgv7_np_mount_height", np_mount_height);
1093 settings->setNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater);
1094 settings->setNoiseParams("mgv7_np_mountain", np_mountain);
1095 settings->setNoiseParams("mgv7_np_ridge", np_ridge);
1099 /////////////////////////////////// legacy static functions for farmesh
1101 s16 Mapgen::find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision) {
1102 //just need to return something
1108 bool Mapgen::get_have_beach(u64 seed, v2s16 p2d) {
1109 double sandnoise = noise2d_perlin(
1110 0.2+(float)p2d.X/250, 0.7+(float)p2d.Y/250,
1111 seed+59420, 3, 0.50);
1113 return (sandnoise > 0.15);
1117 double Mapgen::tree_amount_2d(u64 seed, v2s16 p) {
1118 double noise = noise2d_perlin(
1119 0.5+(float)p.X/125, 0.5+(float)p.Y/125,
1121 double zeroval = -0.39;
1125 return 0.04 * (noise-zeroval) / (1.0-zeroval);