/*
Minetest
-Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2010-2015 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
#include "content_sao.h"
#include "nodedef.h"
#include "emerge.h"
-#include "content_mapnode.h" // For content_mapnode_get_new_name
#include "voxelalgorithms.h"
+#include "porting.h"
#include "profiler.h"
-#include "settings.h" // For g_settings
-#include "main.h" // For g_profiler
+#include "settings.h"
#include "treegen.h"
#include "serialization.h"
#include "util/serialize.h"
+#include "util/numeric.h"
#include "filesys.h"
#include "log.h"
-const char *GenElementManager::ELEMENT_TITLE = "element";
-
FlagDesc flagdesc_mapgen[] = {
- {"trees", MG_TREES},
- {"caves", MG_CAVES},
- {"dungeons", MG_DUNGEONS},
- {"flat", MG_FLAT},
- {"light", MG_LIGHT},
+ {"trees", MG_TREES},
+ {"caves", MG_CAVES},
+ {"dungeons", MG_DUNGEONS},
+ {"flat", MG_FLAT},
+ {"light", MG_LIGHT},
+ {"decorations", MG_DECORATIONS},
{NULL, 0}
};
};
-///////////////////////////////////////////////////////////////////////////////
+////
+//// Mapgen
+////
Mapgen::Mapgen()
{
- generating = false;
- id = -1;
- seed = 0;
- water_level = 0;
- flags = 0;
-
- vm = NULL;
- ndef = NULL;
- heightmap = NULL;
- biomemap = NULL;
+ generating = false;
+ id = -1;
+ seed = 0;
+ water_level = 0;
+ flags = 0;
+
+ vm = NULL;
+ ndef = NULL;
+ heightmap = NULL;
+ biomemap = NULL;
+ heatmap = NULL;
+ humidmap = NULL;
}
Mapgen::Mapgen(int mapgenid, MapgenParams *params, EmergeManager *emerge) :
gennotify(emerge->gen_notify_on, &emerge->gen_notify_on_deco_ids)
{
- generating = false;
- id = mapgenid;
- seed = (int)params->seed;
- water_level = params->water_level;
- flags = params->flags;
- csize = v3s16(1, 1, 1) * (params->chunksize * MAP_BLOCKSIZE);
+ generating = false;
+ id = mapgenid;
+ seed = (int)params->seed;
+ water_level = params->water_level;
+ flags = params->flags;
+ csize = v3s16(1, 1, 1) * (params->chunksize * MAP_BLOCKSIZE);
vm = NULL;
ndef = NULL;
heightmap = NULL;
biomemap = NULL;
+ heatmap = NULL;
+ humidmap = NULL;
}
}
+u32 Mapgen::getBlockSeed(v3s16 p, int seed)
+{
+ return (u32)seed +
+ p.Z * 38134234 +
+ p.Y * 42123 +
+ p.X * 23;
+}
+
+
+u32 Mapgen::getBlockSeed2(v3s16 p, int seed)
+{
+ u32 n = 1619 * p.X + 31337 * p.Y + 52591 * p.Z + 1013 * seed;
+ n = (n >> 13) ^ n;
+ return (n * (n * n * 60493 + 19990303) + 1376312589);
+}
+
+
// Returns Y one under area minimum if not found
s16 Mapgen::findGroundLevelFull(v2s16 p2d)
{
}
+// Returns -MAX_MAP_GENERATION_LIMIT if not found
s16 Mapgen::findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax)
{
v3s16 em = vm->m_area.getExtent();
vm->m_area.add_y(em, i, -1);
}
- return y;
+ return (y >= ymin) ? y : -MAX_MAP_GENERATION_LIMIT;
+}
+
+
+// Returns -MAX_MAP_GENERATION_LIMIT if not found or if ground is found first
+s16 Mapgen::findLiquidSurface(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)
+ return -MAX_MAP_GENERATION_LIMIT;
+ else if (ndef->get(n).isLiquid())
+ break;
+
+ vm->m_area.add_y(em, i, -1);
+ }
+ return (y >= ymin) ? y : -MAX_MAP_GENERATION_LIMIT;
}
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;
}
}
}
-void Mapgen::setLighting(v3s16 nmin, v3s16 nmax, u8 light)
+void Mapgen::setLighting(u8 light, v3s16 nmin, v3s16 nmax)
{
ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
VoxelArea a(nmin, nmax);
}
-void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax)
+void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax, v3s16 full_nmin, v3s16 full_nmax,
+ bool propagate_shadow)
{
- 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
+ propagateSunlight(nmin, nmax, propagate_shadow);
+ spreadLight(full_nmin, full_nmax);
+
+ //printf("updateLighting: %dms\n", t.stop());
+}
+
+
+void Mapgen::propagateSunlight(v3s16 nmin, v3s16 nmax, bool propagate_shadow)
+{
+ //TimeTaker t("propagateSunlight");
+ VoxelArea a(nmin, nmax);
+ bool block_is_underground = (water_level >= nmax.Y);
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
if (vm->m_data[i].getContent() == CONTENT_IGNORE) {
if (block_is_underground)
continue;
- } else if ((vm->m_data[i].param1 & 0x0F) != LIGHT_SUN) {
+ } else if ((vm->m_data[i].param1 & 0x0F) != LIGHT_SUN &&
+ propagate_shadow) {
continue;
}
vm->m_area.add_y(em, i, -1);
}
}
}
+ //printf("propagateSunlight: %dms\n", t.stop());
+}
+
+
+void Mapgen::spreadLight(v3s16 nmin, v3s16 nmax)
+{
+ //TimeTaker t("spreadLight");
+ VoxelArea a(nmin, nmax);
- // 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);
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);
+ lightSpread(a, v3s16(x, y, z + 1), light);
+ lightSpread(a, v3s16(x, y + 1, z ), light);
+ lightSpread(a, v3s16(x + 1, y, z ), light);
+ lightSpread(a, v3s16(x, y, z - 1), light);
+ lightSpread(a, v3s16(x, y - 1, z ), light);
+ lightSpread(a, v3s16(x - 1, y, z ), light);
}
}
}
}
- //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);
- }
+ //printf("spreadLight: %dms\n", t.stop());
}
-///////////////////////////////////////////////////////////////////////////////
+////
+//// GenerateNotifier
+////
GenerateNotifier::GenerateNotifier()
{
+ m_notify_on = 0;
}
}
-///////////////////////////////////////////////////////////////////////////////
-
-
-GenElementManager::GenElementManager(IGameDef *gamedef)
-{
- m_resolver = gamedef->getNodeDefManager()->getResolver();
-}
-
-
-GenElementManager::~GenElementManager()
-{
- for (size_t i = 0; i != m_elements.size(); i++)
- delete m_elements[i];
-}
-
+////
+//// MapgenParams
+////
-u32 GenElementManager::add(GenElement *elem)
+void MapgenParams::load(const Settings &settings)
{
- size_t nelem = m_elements.size();
-
- for (size_t i = 0; i != nelem; i++) {
- if (m_elements[i] == NULL) {
- elem->id = i;
- m_elements[i] = elem;
- return i;
- }
+ std::string seed_str;
+ const char *seed_name = (&settings == g_settings) ? "fixed_map_seed" : "seed";
+
+ if (settings.getNoEx(seed_name, seed_str) && !seed_str.empty())
+ seed = read_seed(seed_str.c_str());
+ else
+ myrand_bytes(&seed, sizeof(seed));
+
+ settings.getNoEx("mg_name", mg_name);
+ settings.getS16NoEx("water_level", water_level);
+ settings.getS16NoEx("chunksize", chunksize);
+ settings.getFlagStrNoEx("mg_flags", flags, flagdesc_mapgen);
+ settings.getNoiseParams("mg_biome_np_heat", np_biome_heat);
+ settings.getNoiseParams("mg_biome_np_heat_blend", np_biome_heat_blend);
+ settings.getNoiseParams("mg_biome_np_humidity", np_biome_humidity);
+ settings.getNoiseParams("mg_biome_np_humidity_blend", np_biome_humidity_blend);
+
+ delete sparams;
+ MapgenFactory *mgfactory = EmergeManager::getMapgenFactory(mg_name);
+ if (mgfactory) {
+ sparams = mgfactory->createMapgenParams();
+ sparams->readParams(&settings);
}
-
- if (nelem >= this->ELEMENT_LIMIT)
- return -1;
-
- elem->id = nelem;
- m_elements.push_back(elem);
-
- verbosestream << "GenElementManager: added " << this->ELEMENT_TITLE
- << " element '" << elem->name << "'" << std::endl;
-
- return nelem;
-}
-
-
-GenElement *GenElementManager::get(u32 id)
-{
- return (id < m_elements.size()) ? m_elements[id] : NULL;
-}
-
-
-GenElement *GenElementManager::getByName(const std::string &name)
-{
- for (size_t i = 0; i != m_elements.size(); i++) {
- GenElement *elem = m_elements[i];
- if (elem && name == elem->name)
- return elem;
- }
-
- return NULL;
-}
-
-
-GenElement *GenElementManager::update(u32 id, GenElement *elem)
-{
- if (id >= m_elements.size())
- return NULL;
-
- GenElement *old_elem = m_elements[id];
- m_elements[id] = elem;
- return old_elem;
-}
-
-
-GenElement *GenElementManager::remove(u32 id)
-{
- return update(id, NULL);
}
-void GenElementManager::clear()
+void MapgenParams::save(Settings &settings) const
{
- m_elements.clear();
+ settings.set("mg_name", mg_name);
+ settings.setU64("seed", seed);
+ settings.setS16("water_level", water_level);
+ settings.setS16("chunksize", chunksize);
+ settings.setFlagStr("mg_flags", flags, flagdesc_mapgen, U32_MAX);
+ settings.setNoiseParams("mg_biome_np_heat", np_biome_heat);
+ settings.setNoiseParams("mg_biome_np_heat_blend", np_biome_heat_blend);
+ settings.setNoiseParams("mg_biome_np_humidity", np_biome_humidity);
+ settings.setNoiseParams("mg_biome_np_humidity_blend", np_biome_humidity_blend);
+
+ if (sparams)
+ sparams->writeParams(&settings);
}
projects / minetest.git / blobdiff