#include "mapgen.h"
#include "voxel.h"
#include "noise.h"
-#include "biome.h"
+#include "gamedef.h"
+#include "mg_biome.h"
#include "mapblock.h"
#include "mapnode.h"
#include "map.h"
-//#include "serverobject.h"
#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 "mapgen_v6.h"
-#include "mapgen_v7.h"
+#include "serialization.h"
+#include "util/serialize.h"
+#include "util/numeric.h"
+#include "filesys.h"
+#include "log.h"
FlagDesc flagdesc_mapgen[] = {
- {"trees", MG_TREES},
- {"caves", MG_CAVES},
- {"dungeons", MG_DUNGEONS},
- {"v6_jungles", MGV6_JUNGLES},
- {"v6_biome_blend", MGV6_BIOME_BLEND},
- {"flat", MG_FLAT},
- {NULL, 0}
+ {"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_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},
+ {"decoration", 1 << GENNOTIFY_DECORATION},
+ {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;
- }
+Mapgen::Mapgen()
+{
+ generating = false;
+ id = -1;
+ seed = 0;
+ water_level = 0;
+ flags = 0;
+
+ vm = NULL;
+ ndef = NULL;
+ heightmap = NULL;
+ biomemap = NULL;
}
-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 = CONTENT_AIR;
- }
- }
-
- if (wherein == CONTENT_IGNORE) {
- wherein = ndef->getId(wherein_name);
- if (wherein == CONTENT_IGNORE) {
- errorstream << "Ore::resolveNodeNames: wherein node '"
- << wherein_name << "' not defined";
- ore = CONTENT_AIR;
- wherein = CONTENT_AIR;
- }
- }
+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);
+
+ vm = NULL;
+ ndef = NULL;
+ heightmap = NULL;
+ biomemap = NULL;
}
-void Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
- int in_range = 0;
+Mapgen::~Mapgen()
+{
+}
- 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;
- resolveNodeNames(mg->ndef);
-
- 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);
- if (vm->m_data[i].getContent() == wherein)
- vm->m_data[i] = n_ore;
- }
+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)
+{
+ 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;
}
-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);
+// Returns -MAP_GENERATION_LIMIT if not found
+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);
}
- noise->seed = seed + y_start;
- noise->perlinMap2D(nmin.X, nmin.Z);
-
+ return (y >= ymin) ? y : -MAP_GENERATION_LIMIT;
+}
+
+
+void Mapgen::updateHeightmap(v3s16 nmin, v3s16 nmax)
+{
+ if (!heightmap)
+ return;
+
+ //TimeTaker t("Mapgen::updateHeightmap", NULL, PRECISION_MICRO);
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;
-
- if (vm->m_data[i].getContent() == wherein)
- vm->m_data[i] = n_ore;
+ 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);
+
+ heightmap[index] = y;
}
}
+ //printf("updateHeightmap: %dus\n", t.stop());
}
-void Mapgen::updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax) {
+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
+
+ // there was a change between liquid and nonliquid, add to queue.
if (isliquid != wasliquid)
trans_liquid->push_back(v3s16(x, y, z));
}
-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::lightSpread(VoxelArea &a, v3s16 p, u8 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];
// 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);
}
-void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax) {
- VoxelArea a(nmin, nmax);
- bool block_is_underground = (water_level >= nmax.Y);
+void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax, v3s16 full_nmin, v3s16 full_nmax)
+{
+ ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
+ //TimeTaker t("updateLighting");
+
+ propagateSunlight(nmin, nmax);
+ spreadLight(full_nmin, full_nmax);
+
+ //printf("updateLighting: %dms\n", t.stop());
+}
+
+
+void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax)
+{
ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
//TimeTaker t("updateLighting");
- // first, send vertical rays of sunshine downward
+ propagateSunlight(
+ nmin - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
+ nmax + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
+
+ spreadLight(
+ nmin - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
+ nmax + v3s16(1, 1, 1) * MAP_BLOCKSIZE);
+
+ //printf("updateLighting: %dms\n", t.stop());
+}
+
+
+void Mapgen::propagateSunlight(v3s16 nmin, v3s16 nmax)
+{
+ //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
}
}
}
-
- // now spread the sunlight and light up any sources
+ //printf("propagateSunlight: %dms\n", t.stop());
+}
+
+
+
+void Mapgen::spreadLight(v3s16 nmin, v3s16 nmax)
+{
+ //TimeTaker t("spreadLight");
+ 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);
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);
}
}
}
-
- //printf("updateLighting: %dms\n", t.stop());
+
+ //printf("spreadLight: %dms\n", t.stop());
}
-void Mapgen::calcLightingOld(v3s16 nmin, v3s16 nmax) {
+
+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);
+ light_sources, unlight_from);
voxalgo::propagateSunlight(*vm, a, sunlight, light_sources, ndef);
vm->unspreadLight(bank, unlight_from, light_sources, ndef);
}
-//////////////////////// Mapgen V6 parameter read/write
+///////////////////////////////////////////////////////////////////////////////
-bool MapgenV6Params::readParams(Settings *settings) {
- freq_desert = settings->getFloat("mgv6_freq_desert");
- freq_beach = settings->getFloat("mgv6_freq_beach");
+GenerateNotifier::GenerateNotifier()
+{
+ m_notify_on = 0;
+}
- np_terrain_base = settings->getNoiseParams("mgv6_np_terrain_base");
- np_terrain_higher = settings->getNoiseParams("mgv6_np_terrain_higher");
- np_steepness = settings->getNoiseParams("mgv6_np_steepness");
- np_height_select = settings->getNoiseParams("mgv6_np_height_select");
- np_mud = settings->getNoiseParams("mgv6_np_mud");
- np_beach = settings->getNoiseParams("mgv6_np_beach");
- np_biome = settings->getNoiseParams("mgv6_np_biome");
- np_cave = settings->getNoiseParams("mgv6_np_cave");
- np_humidity = settings->getNoiseParams("mgv6_np_humidity");
- np_trees = settings->getNoiseParams("mgv6_np_trees");
- np_apple_trees = settings->getNoiseParams("mgv6_np_apple_trees");
- bool success =
- np_terrain_base && np_terrain_higher && np_steepness &&
- np_height_select && np_trees && np_mud &&
- np_beach && np_biome && np_cave &&
- np_humidity && np_apple_trees;
- return success;
+GenerateNotifier::GenerateNotifier(u32 notify_on,
+ std::set<u32> *notify_on_deco_ids)
+{
+ m_notify_on = notify_on;
+ m_notify_on_deco_ids = notify_on_deco_ids;
}
-void MapgenV6Params::writeParams(Settings *settings) {
- settings->setFloat("mgv6_freq_desert", freq_desert);
- settings->setFloat("mgv6_freq_beach", freq_beach);
-
- settings->setNoiseParams("mgv6_np_terrain_base", np_terrain_base);
- settings->setNoiseParams("mgv6_np_terrain_higher", np_terrain_higher);
- settings->setNoiseParams("mgv6_np_steepness", np_steepness);
- settings->setNoiseParams("mgv6_np_height_select", np_height_select);
- settings->setNoiseParams("mgv6_np_mud", np_mud);
- settings->setNoiseParams("mgv6_np_beach", np_beach);
- settings->setNoiseParams("mgv6_np_biome", np_biome);
- settings->setNoiseParams("mgv6_np_cave", np_cave);
- settings->setNoiseParams("mgv6_np_humidity", np_humidity);
- settings->setNoiseParams("mgv6_np_trees", np_trees);
- settings->setNoiseParams("mgv6_np_apple_trees", np_apple_trees);
+void GenerateNotifier::setNotifyOn(u32 notify_on)
+{
+ m_notify_on = notify_on;
}
-bool MapgenV7Params::readParams(Settings *settings) {
- np_terrain_base = settings->getNoiseParams("mgv7_np_terrain_base");
- np_terrain_alt = settings->getNoiseParams("mgv7_np_terrain_alt");
- np_terrain_mod = settings->getNoiseParams("mgv7_np_terrain_mod");
- np_terrain_persist = settings->getNoiseParams("mgv7_np_terrain_persist");
- np_height_select = settings->getNoiseParams("mgv7_np_height_select");
- np_ridge = settings->getNoiseParams("mgv7_np_ridge");
-
- bool success =
- np_terrain_base && np_terrain_alt && np_terrain_mod &&
- np_terrain_persist && np_height_select && np_ridge;
- return success;
+void GenerateNotifier::setNotifyOnDecoIds(std::set<u32> *notify_on_deco_ids)
+{
+ m_notify_on_deco_ids = notify_on_deco_ids;
}
-void MapgenV7Params::writeParams(Settings *settings) {
- settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base);
- settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt);
- settings->setNoiseParams("mgv7_np_terrain_mod", np_terrain_mod);
- settings->setNoiseParams("mgv7_np_terrain_persist", np_terrain_persist);
- settings->setNoiseParams("mgv7_np_height_select", np_height_select);
- settings->setNoiseParams("mgv7_np_ridge", np_ridge);
+bool GenerateNotifier::addEvent(GenNotifyType type, v3s16 pos, u32 id)
+{
+ if (!(m_notify_on & (1 << type)))
+ return false;
+
+ if (type == GENNOTIFY_DECORATION &&
+ m_notify_on_deco_ids->find(id) == m_notify_on_deco_ids->end())
+ return false;
+
+ GenNotifyEvent gne;
+ gne.type = type;
+ gne.pos = pos;
+ gne.id = id;
+ m_notify_events.push_back(gne);
+
+ return true;
+}
+
+
+void GenerateNotifier::getEvents(
+ std::map<std::string, std::vector<v3s16> > &event_map,
+ bool peek_events)
+{
+ std::list<GenNotifyEvent>::iterator it;
+
+ for (it = m_notify_events.begin(); it != m_notify_events.end(); ++it) {
+ GenNotifyEvent &gn = *it;
+ std::string name = (gn.type == GENNOTIFY_DECORATION) ?
+ "decoration#"+ itos(gn.id) :
+ flagdesc_gennotify[gn.type].name;
+
+ event_map[name].push_back(gn.pos);
+ }
+
+ if (!peek_events)
+ m_notify_events.clear();
}
-/////////////////////////////////// legacy static functions for farmesh
+///////////////////////////////////////////////////////////////////////////////
+
+
+ObjDefManager::ObjDefManager(IGameDef *gamedef, ObjDefType type)
+{
+ m_objtype = type;
+ m_ndef = gamedef->getNodeDefManager();
+}
-s16 Mapgen::find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision) {
- //just need to return something
- s16 level = 5;
- return level;
+ObjDefManager::~ObjDefManager()
+{
+ for (size_t i = 0; i != m_objects.size(); i++)
+ delete m_objects[i];
}
-bool Mapgen::get_have_beach(u64 seed, v2s16 p2d) {
- double sandnoise = noise2d_perlin(
- 0.2+(float)p2d.X/250, 0.7+(float)p2d.Y/250,
- seed+59420, 3, 0.50);
+ObjDefHandle ObjDefManager::add(ObjDef *obj)
+{
+ assert(obj);
- return (sandnoise > 0.15);
+ if (obj->name.length() && getByName(obj->name))
+ return OBJDEF_INVALID_HANDLE;
+
+ u32 index = addRaw(obj);
+ if (index == OBJDEF_INVALID_INDEX)
+ return OBJDEF_INVALID_HANDLE;
+
+ obj->handle = createHandle(index, m_objtype, obj->uid);
+ return obj->handle;
}
-double Mapgen::tree_amount_2d(u64 seed, v2s16 p) {
- double noise = noise2d_perlin(
- 0.5+(float)p.X/125, 0.5+(float)p.Y/125,
- seed+2, 4, 0.66);
- double zeroval = -0.39;
- if(noise < zeroval)
- return 0;
+ObjDef *ObjDefManager::get(ObjDefHandle handle) const
+{
+ u32 index = validateHandle(handle);
+ return (index != OBJDEF_INVALID_INDEX) ? getRaw(index) : NULL;
+}
+
+
+ObjDef *ObjDefManager::set(ObjDefHandle handle, ObjDef *obj)
+{
+ u32 index = validateHandle(handle);
+ return (index != OBJDEF_INVALID_INDEX) ? setRaw(index, obj) : NULL;
+}
+
+
+u32 ObjDefManager::addRaw(ObjDef *obj)
+{
+ size_t nobjects = m_objects.size();
+ if (nobjects >= OBJDEF_MAX_ITEMS)
+ return -1;
+
+ obj->index = nobjects;
+
+ // Ensure UID is nonzero so that a valid handle == OBJDEF_INVALID_HANDLE
+ // is not possible. The slight randomness bias isn't very significant.
+ obj->uid = myrand() & OBJDEF_UID_MASK;
+ if (obj->uid == 0)
+ obj->uid = 1;
+
+ m_objects.push_back(obj);
+
+ infostream << "ObjDefManager: added " << getObjectTitle()
+ << ": name=\"" << obj->name
+ << "\" index=" << obj->index
+ << " uid=" << obj->uid
+ << std::endl;
+
+ return nobjects;
+}
+
+
+ObjDef *ObjDefManager::getRaw(u32 index) const
+{
+ return m_objects[index];
+}
+
+
+ObjDef *ObjDefManager::setRaw(u32 index, ObjDef *obj)
+{
+ ObjDef *old_obj = m_objects[index];
+ m_objects[index] = obj;
+ return old_obj;
+}
+
+
+ObjDef *ObjDefManager::getByName(const std::string &name) const
+{
+ for (size_t i = 0; i != m_objects.size(); i++) {
+ ObjDef *obj = m_objects[i];
+ if (obj && !strcasecmp(name.c_str(), obj->name.c_str()))
+ return obj;
+ }
+
+ return NULL;
+}
+
+
+void ObjDefManager::clear()
+{
+ for (size_t i = 0; i != m_objects.size(); i++)
+ delete m_objects[i];
+
+ m_objects.clear();
+}
+
+
+u32 ObjDefManager::validateHandle(ObjDefHandle handle) const
+{
+ ObjDefType type;
+ u32 index;
+ u32 uid;
+
+ bool is_valid =
+ (handle != OBJDEF_INVALID_HANDLE) &&
+ decodeHandle(handle, &index, &type, &uid) &&
+ (type == m_objtype) &&
+ (index < m_objects.size()) &&
+ (m_objects[index]->uid == uid);
+
+ return is_valid ? index : -1;
+}
+
+
+ObjDefHandle ObjDefManager::createHandle(u32 index, ObjDefType type, u32 uid)
+{
+ ObjDefHandle handle = 0;
+ set_bits(&handle, 0, 18, index);
+ set_bits(&handle, 18, 6, type);
+ set_bits(&handle, 24, 7, uid);
+
+ u32 parity = calc_parity(handle);
+ set_bits(&handle, 31, 1, parity);
+
+ return handle ^ OBJDEF_HANDLE_SALT;
+}
+
+
+bool ObjDefManager::decodeHandle(ObjDefHandle handle, u32 *index,
+ ObjDefType *type, u32 *uid)
+{
+ handle ^= OBJDEF_HANDLE_SALT;
+
+ u32 parity = get_bits(handle, 31, 1);
+ set_bits(&handle, 31, 1, 0);
+ if (parity != calc_parity(handle))
+ return false;
+
+ *index = get_bits(handle, 0, 18);
+ *type = (ObjDefType)get_bits(handle, 18, 6);
+ *uid = get_bits(handle, 24, 7);
+ return true;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+
+
+void MapgenParams::load(const Settings &settings)
+{
+ 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
- return 0.04 * (noise-zeroval) / (1.0-zeroval);
+ 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_humidity", np_biome_humidity);
+
+ delete sparams;
+ sparams = EmergeManager::createMapgenParams(mg_name);
+ if (sparams)
+ sparams->readParams(&settings);
+}
+
+
+void MapgenParams::save(Settings &settings) const
+{
+ 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)-1);
+ settings.setNoiseParams("mg_biome_np_heat", np_biome_heat);
+ settings.setNoiseParams("mg_biome_np_humidity", np_biome_humidity);
+
+ if (sparams)
+ sparams->writeParams(&settings);
}
+
projects / minetest.git / blobdiff