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.
28 #include "content_sao.h"
31 #include "content_mapnode.h" // For content_mapnode_get_new_name
32 #include "voxelalgorithms.h"
34 #include "settings.h" // For g_settings
35 #include "main.h" // For g_profiler
37 #include "serialization.h"
38 #include "util/serialize.h"
42 const char *GenElementManager::ELEMENT_TITLE = "element";
44 FlagDesc flagdesc_mapgen[] = {
47 {"dungeons", MG_DUNGEONS},
53 FlagDesc flagdesc_gennotify[] = {
54 {"dungeon", 1 << GENNOTIFY_DUNGEON},
55 {"temple", 1 << GENNOTIFY_TEMPLE},
56 {"cave_begin", 1 << GENNOTIFY_CAVE_BEGIN},
57 {"cave_end", 1 << GENNOTIFY_CAVE_END},
58 {"large_cave_begin", 1 << GENNOTIFY_LARGECAVE_BEGIN},
59 {"large_cave_end", 1 << GENNOTIFY_LARGECAVE_END},
60 {"decoration", 1 << GENNOTIFY_DECORATION},
65 ///////////////////////////////////////////////////////////////////////////////
82 Mapgen::Mapgen(int mapgenid, MapgenParams *params, EmergeManager *emerge) :
83 gennotify(emerge->gen_notify_on, &emerge->gen_notify_on_deco_ids)
87 seed = (int)params->seed;
88 water_level = params->water_level;
89 flags = params->flags;
90 csize = v3s16(1, 1, 1) * (params->chunksize * MAP_BLOCKSIZE);
104 u32 Mapgen::getBlockSeed(v3s16 p, int seed)
113 u32 Mapgen::getBlockSeed2(v3s16 p, int seed)
115 u32 n = 1619 * p.X + 31337 * p.Y + 52591 * p.Z + 1013 * seed;
117 return (n * (n * n * 60493 + 19990303) + 1376312589);
121 // Returns Y one under area minimum if not found
122 s16 Mapgen::findGroundLevelFull(v2s16 p2d)
124 v3s16 em = vm->m_area.getExtent();
125 s16 y_nodes_max = vm->m_area.MaxEdge.Y;
126 s16 y_nodes_min = vm->m_area.MinEdge.Y;
127 u32 i = vm->m_area.index(p2d.X, y_nodes_max, p2d.Y);
130 for (y = y_nodes_max; y >= y_nodes_min; y--) {
131 MapNode &n = vm->m_data[i];
132 if (ndef->get(n).walkable)
135 vm->m_area.add_y(em, i, -1);
137 return (y >= y_nodes_min) ? y : y_nodes_min - 1;
141 s16 Mapgen::findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax)
143 v3s16 em = vm->m_area.getExtent();
144 u32 i = vm->m_area.index(p2d.X, ymax, p2d.Y);
147 for (y = ymax; y >= ymin; y--) {
148 MapNode &n = vm->m_data[i];
149 if (ndef->get(n).walkable)
152 vm->m_area.add_y(em, i, -1);
158 void Mapgen::updateHeightmap(v3s16 nmin, v3s16 nmax)
163 //TimeTaker t("Mapgen::updateHeightmap", NULL, PRECISION_MICRO);
165 for (s16 z = nmin.Z; z <= nmax.Z; z++) {
166 for (s16 x = nmin.X; x <= nmax.X; x++, index++) {
167 s16 y = findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
169 // if the values found are out of range, trust the old heightmap
170 if (y == nmax.Y && heightmap[index] > nmax.Y)
172 if (y == nmin.Y - 1 && heightmap[index] < nmin.Y)
175 heightmap[index] = y;
178 //printf("updateHeightmap: %dus\n", t.stop());
182 void Mapgen::updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax)
184 bool isliquid, wasliquid;
185 v3s16 em = vm->m_area.getExtent();
187 for (s16 z = nmin.Z; z <= nmax.Z; z++) {
188 for (s16 x = nmin.X; x <= nmax.X; x++) {
191 u32 i = vm->m_area.index(x, nmax.Y, z);
192 for (s16 y = nmax.Y; y >= nmin.Y; y--) {
193 isliquid = ndef->get(vm->m_data[i]).isLiquid();
195 // there was a change between liquid and nonliquid, add to queue.
196 if (isliquid != wasliquid)
197 trans_liquid->push_back(v3s16(x, y, z));
199 wasliquid = isliquid;
200 vm->m_area.add_y(em, i, -1);
207 void Mapgen::setLighting(u8 light, v3s16 nmin, v3s16 nmax)
209 ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
210 VoxelArea a(nmin, nmax);
212 for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
213 for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
214 u32 i = vm->m_area.index(a.MinEdge.X, y, z);
215 for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++)
216 vm->m_data[i].param1 = light;
222 void Mapgen::lightSpread(VoxelArea &a, v3s16 p, u8 light)
224 if (light <= 1 || !a.contains(p))
227 u32 vi = vm->m_area.index(p);
228 MapNode &nn = vm->m_data[vi];
231 // should probably compare masked, but doesn't seem to make a difference
232 if (light <= nn.param1 || !ndef->get(nn).light_propagates)
237 lightSpread(a, p + v3s16(0, 0, 1), light);
238 lightSpread(a, p + v3s16(0, 1, 0), light);
239 lightSpread(a, p + v3s16(1, 0, 0), light);
240 lightSpread(a, p - v3s16(0, 0, 1), light);
241 lightSpread(a, p - v3s16(0, 1, 0), light);
242 lightSpread(a, p - v3s16(1, 0, 0), light);
246 void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax, v3s16 full_nmin, v3s16 full_nmax)
248 ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
249 //TimeTaker t("updateLighting");
251 propagateSunlight(nmin, nmax);
252 spreadLight(full_nmin, full_nmax);
254 //printf("updateLighting: %dms\n", t.stop());
259 void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax)
261 ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
262 //TimeTaker t("updateLighting");
265 nmin - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
266 nmax + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
269 nmin - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
270 nmax + v3s16(1, 1, 1) * MAP_BLOCKSIZE);
272 //printf("updateLighting: %dms\n", t.stop());
276 void Mapgen::propagateSunlight(v3s16 nmin, v3s16 nmax)
278 //TimeTaker t("propagateSunlight");
279 VoxelArea a(nmin, nmax);
280 bool block_is_underground = (water_level >= nmax.Y);
281 v3s16 em = vm->m_area.getExtent();
283 for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
284 for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++) {
285 // see if we can get a light value from the overtop
286 u32 i = vm->m_area.index(x, a.MaxEdge.Y + 1, z);
287 if (vm->m_data[i].getContent() == CONTENT_IGNORE) {
288 if (block_is_underground)
290 } else if ((vm->m_data[i].param1 & 0x0F) != LIGHT_SUN) {
293 vm->m_area.add_y(em, i, -1);
295 for (int y = a.MaxEdge.Y; y >= a.MinEdge.Y; y--) {
296 MapNode &n = vm->m_data[i];
297 if (!ndef->get(n).sunlight_propagates)
299 n.param1 = LIGHT_SUN;
300 vm->m_area.add_y(em, i, -1);
304 //printf("propagateSunlight: %dms\n", t.stop());
309 void Mapgen::spreadLight(v3s16 nmin, v3s16 nmax)
311 //TimeTaker t("spreadLight");
312 VoxelArea a(nmin, nmax);
313 v3s16 em = vm->m_area.getExtent();
315 for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
316 for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
317 u32 i = vm->m_area.index(a.MinEdge.X, y, z);
318 for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++) {
319 MapNode &n = vm->m_data[i];
320 if (n.getContent() == CONTENT_IGNORE ||
321 !ndef->get(n).light_propagates)
324 u8 light_produced = ndef->get(n).light_source & 0x0F;
326 n.param1 = light_produced;
328 u8 light = n.param1 & 0x0F;
330 lightSpread(a, v3s16(x, y, z + 1), light);
331 lightSpread(a, v3s16(x, y + 1, z ), light);
332 lightSpread(a, v3s16(x + 1, y, z ), light);
333 lightSpread(a, v3s16(x, y, z - 1), light);
334 lightSpread(a, v3s16(x, y - 1, z ), light);
335 lightSpread(a, v3s16(x - 1, y, z ), light);
341 //printf("spreadLight: %dms\n", t.stop());
346 void Mapgen::calcLightingOld(v3s16 nmin, v3s16 nmax)
348 enum LightBank banks[2] = {LIGHTBANK_DAY, LIGHTBANK_NIGHT};
349 VoxelArea a(nmin, nmax);
350 bool block_is_underground = (water_level > nmax.Y);
351 bool sunlight = !block_is_underground;
353 ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
355 for (int i = 0; i < 2; i++) {
356 enum LightBank bank = banks[i];
357 std::set<v3s16> light_sources;
358 std::map<v3s16, u8> unlight_from;
360 voxalgo::clearLightAndCollectSources(*vm, a, bank, ndef,
361 light_sources, unlight_from);
362 voxalgo::propagateSunlight(*vm, a, sunlight, light_sources, ndef);
364 vm->unspreadLight(bank, unlight_from, light_sources, ndef);
365 vm->spreadLight(bank, light_sources, ndef);
370 ///////////////////////////////////////////////////////////////////////////////
372 GenerateNotifier::GenerateNotifier()
378 GenerateNotifier::GenerateNotifier(u32 notify_on,
379 std::set<u32> *notify_on_deco_ids)
381 m_notify_on = notify_on;
382 m_notify_on_deco_ids = notify_on_deco_ids;
386 void GenerateNotifier::setNotifyOn(u32 notify_on)
388 m_notify_on = notify_on;
392 void GenerateNotifier::setNotifyOnDecoIds(std::set<u32> *notify_on_deco_ids)
394 m_notify_on_deco_ids = notify_on_deco_ids;
398 bool GenerateNotifier::addEvent(GenNotifyType type, v3s16 pos, u32 id)
400 if (!(m_notify_on & (1 << type)))
403 if (type == GENNOTIFY_DECORATION &&
404 m_notify_on_deco_ids->find(id) == m_notify_on_deco_ids->end())
411 m_notify_events.push_back(gne);
417 void GenerateNotifier::getEvents(
418 std::map<std::string, std::vector<v3s16> > &event_map,
421 std::list<GenNotifyEvent>::iterator it;
423 for (it = m_notify_events.begin(); it != m_notify_events.end(); ++it) {
424 GenNotifyEvent &gn = *it;
425 std::string name = (gn.type == GENNOTIFY_DECORATION) ?
426 "decoration#"+ itos(gn.id) :
427 flagdesc_gennotify[gn.type].name;
429 event_map[name].push_back(gn.pos);
433 m_notify_events.clear();
437 ///////////////////////////////////////////////////////////////////////////////
440 GenElementManager::GenElementManager(IGameDef *gamedef)
442 m_ndef = gamedef->getNodeDefManager();
446 GenElementManager::~GenElementManager()
448 for (size_t i = 0; i != m_elements.size(); i++)
449 delete m_elements[i];
453 u32 GenElementManager::add(GenElement *elem)
455 size_t nelem = m_elements.size();
457 for (size_t i = 0; i != nelem; i++) {
458 if (m_elements[i] == NULL) {
460 m_elements[i] = elem;
465 if (nelem >= this->ELEMENT_LIMIT)
469 m_elements.push_back(elem);
471 verbosestream << "GenElementManager: added " << this->ELEMENT_TITLE
472 << " element '" << elem->name << "'" << std::endl;
478 GenElement *GenElementManager::get(u32 id)
480 return (id < m_elements.size()) ? m_elements[id] : NULL;
484 GenElement *GenElementManager::getByName(const std::string &name)
486 for (size_t i = 0; i != m_elements.size(); i++) {
487 GenElement *elem = m_elements[i];
488 if (elem && name == elem->name)
496 GenElement *GenElementManager::update(u32 id, GenElement *elem)
498 if (id >= m_elements.size())
501 GenElement *old_elem = m_elements[id];
502 m_elements[id] = elem;
507 GenElement *GenElementManager::remove(u32 id)
509 return update(id, NULL);
513 void GenElementManager::clear()