From 2da1eee394554879bf1cee6bc0f7b77acf0b6c43 Mon Sep 17 00:00:00 2001 From: sfan5 Date: Tue, 23 Mar 2021 15:43:26 +0100 Subject: Fix broken `BiomeGen` abstraction (#11107) --- src/emerge.cpp | 16 ++++-- src/emerge.h | 7 ++- src/mapgen/mapgen.cpp | 4 +- src/mapgen/mapgen_valleys.cpp | 3 +- src/mapgen/mg_biome.cpp | 90 ++++++------------------------- src/mapgen/mg_biome.h | 27 ++++++---- src/noise.cpp | 6 +-- src/noise.h | 6 +-- src/script/lua_api/l_mapgen.cpp | 116 ++++++++++------------------------------ 9 files changed, 90 insertions(+), 185 deletions(-) diff --git a/src/emerge.cpp b/src/emerge.cpp index e0dc5628e..32e7d9f24 100644 --- a/src/emerge.cpp +++ b/src/emerge.cpp @@ -113,13 +113,15 @@ EmergeParams::~EmergeParams() { infostream << "EmergeParams: destroying " << this << std::endl; // Delete everything that was cloned on creation of EmergeParams + delete biomegen; delete biomemgr; delete oremgr; delete decomgr; delete schemmgr; } -EmergeParams::EmergeParams(EmergeManager *parent, const BiomeManager *biomemgr, +EmergeParams::EmergeParams(EmergeManager *parent, const BiomeGen *biomegen, + const BiomeManager *biomemgr, const OreManager *oremgr, const DecorationManager *decomgr, const SchematicManager *schemmgr) : ndef(parent->ndef), @@ -129,6 +131,7 @@ EmergeParams::EmergeParams(EmergeManager *parent, const BiomeManager *biomemgr, biomemgr(biomemgr->clone()), oremgr(oremgr->clone()), decomgr(decomgr->clone()), schemmgr(schemmgr->clone()) { + this->biomegen = biomegen->clone(this->biomemgr); } //// @@ -143,6 +146,10 @@ EmergeManager::EmergeManager(Server *server) this->decomgr = new DecorationManager(server); this->schemmgr = new SchematicManager(server); + // initialized later + this->mgparams = nullptr; + this->biomegen = nullptr; + // Note that accesses to this variable are not synchronized. // This is because the *only* thread ever starting or stopping // EmergeThreads should be the ServerThread. @@ -240,9 +247,12 @@ void EmergeManager::initMapgens(MapgenParams *params) mgparams = params; + v3s16 csize = v3s16(1, 1, 1) * (params->chunksize * MAP_BLOCKSIZE); + biomegen = biomemgr->createBiomeGen(BIOMEGEN_ORIGINAL, params->bparams, csize); + for (u32 i = 0; i != m_threads.size(); i++) { - EmergeParams *p = new EmergeParams( - this, biomemgr, oremgr, decomgr, schemmgr); + EmergeParams *p = new EmergeParams(this, biomegen, + biomemgr, oremgr, decomgr, schemmgr); infostream << "EmergeManager: Created params " << p << " for thread " << i << std::endl; m_mapgens.push_back(Mapgen::createMapgen(params->mgtype, params, p)); diff --git a/src/emerge.h b/src/emerge.h index da845e243..aac3e7dd3 100644 --- a/src/emerge.h +++ b/src/emerge.h @@ -99,13 +99,15 @@ public: u32 gen_notify_on; const std::set *gen_notify_on_deco_ids; // shared + BiomeGen *biomegen; BiomeManager *biomemgr; OreManager *oremgr; DecorationManager *decomgr; SchematicManager *schemmgr; private: - EmergeParams(EmergeManager *parent, const BiomeManager *biomemgr, + EmergeParams(EmergeManager *parent, const BiomeGen *biomegen, + const BiomeManager *biomemgr, const OreManager *oremgr, const DecorationManager *decomgr, const SchematicManager *schemmgr); }; @@ -140,6 +142,8 @@ public: ~EmergeManager(); DISABLE_CLASS_COPY(EmergeManager); + const BiomeGen *getBiomeGen() const { return biomegen; } + // no usage restrictions const BiomeManager *getBiomeManager() const { return biomemgr; } const OreManager *getOreManager() const { return oremgr; } @@ -196,6 +200,7 @@ private: // Managers of various map generation-related components // Note that each Mapgen gets a copy(!) of these to work with + BiomeGen *biomegen; BiomeManager *biomemgr; OreManager *oremgr; DecorationManager *decomgr; diff --git a/src/mapgen/mapgen.cpp b/src/mapgen/mapgen.cpp index e0dfd2d71..7984ff609 100644 --- a/src/mapgen/mapgen.cpp +++ b/src/mapgen/mapgen.cpp @@ -595,7 +595,8 @@ MapgenBasic::MapgenBasic(int mapgenid, MapgenParams *params, EmergeParams *emerg this->heightmap = new s16[csize.X * csize.Z]; //// Initialize biome generator - biomegen = m_bmgr->createBiomeGen(BIOMEGEN_ORIGINAL, params->bparams, csize); + biomegen = emerge->biomegen; + biomegen->assertChunkSize(csize); biomemap = biomegen->biomemap; //// Look up some commonly used content @@ -621,7 +622,6 @@ MapgenBasic::MapgenBasic(int mapgenid, MapgenParams *params, EmergeParams *emerg MapgenBasic::~MapgenBasic() { - delete biomegen; delete []heightmap; delete m_emerge; // destroying EmergeParams is our responsibility diff --git a/src/mapgen/mapgen_valleys.cpp b/src/mapgen/mapgen_valleys.cpp index c4234857e..80a99b1f0 100644 --- a/src/mapgen/mapgen_valleys.cpp +++ b/src/mapgen/mapgen_valleys.cpp @@ -57,7 +57,8 @@ FlagDesc flagdesc_mapgen_valleys[] = { MapgenValleys::MapgenValleys(MapgenValleysParams *params, EmergeParams *emerge) : MapgenBasic(MAPGEN_VALLEYS, params, emerge) { - // NOTE: MapgenValleys has a hard dependency on BiomeGenOriginal + FATAL_ERROR_IF(biomegen->getType() != BIOMEGEN_ORIGINAL, + "MapgenValleys has a hard dependency on BiomeGenOriginal"); m_bgen = (BiomeGenOriginal *)biomegen; spflags = params->spflags; diff --git a/src/mapgen/mg_biome.cpp b/src/mapgen/mg_biome.cpp index 610c38594..f08cc190f 100644 --- a/src/mapgen/mg_biome.cpp +++ b/src/mapgen/mg_biome.cpp @@ -101,71 +101,6 @@ BiomeManager *BiomeManager::clone() const return mgr; } - -// For BiomeGen type 'BiomeGenOriginal' -float BiomeManager::getHeatAtPosOriginal(v3s16 pos, NoiseParams &np_heat, - NoiseParams &np_heat_blend, u64 seed) const -{ - return - NoisePerlin2D(&np_heat, pos.X, pos.Z, seed) + - NoisePerlin2D(&np_heat_blend, pos.X, pos.Z, seed); -} - - -// For BiomeGen type 'BiomeGenOriginal' -float BiomeManager::getHumidityAtPosOriginal(v3s16 pos, NoiseParams &np_humidity, - NoiseParams &np_humidity_blend, u64 seed) const -{ - return - NoisePerlin2D(&np_humidity, pos.X, pos.Z, seed) + - NoisePerlin2D(&np_humidity_blend, pos.X, pos.Z, seed); -} - - -// For BiomeGen type 'BiomeGenOriginal' -const Biome *BiomeManager::getBiomeFromNoiseOriginal(float heat, - float humidity, v3s16 pos) const -{ - Biome *biome_closest = nullptr; - Biome *biome_closest_blend = nullptr; - float dist_min = FLT_MAX; - float dist_min_blend = FLT_MAX; - - for (size_t i = 1; i < getNumObjects(); i++) { - Biome *b = (Biome *)getRaw(i); - if (!b || - pos.Y < b->min_pos.Y || pos.Y > b->max_pos.Y + b->vertical_blend || - pos.X < b->min_pos.X || pos.X > b->max_pos.X || - pos.Z < b->min_pos.Z || pos.Z > b->max_pos.Z) - continue; - - float d_heat = heat - b->heat_point; - float d_humidity = humidity - b->humidity_point; - float dist = (d_heat * d_heat) + (d_humidity * d_humidity); - - if (pos.Y <= b->max_pos.Y) { // Within y limits of biome b - if (dist < dist_min) { - dist_min = dist; - biome_closest = b; - } - } else if (dist < dist_min_blend) { // Blend area above biome b - dist_min_blend = dist; - biome_closest_blend = b; - } - } - - const u64 seed = pos.Y + (heat + humidity) * 0.9f; - PcgRandom rng(seed); - - if (biome_closest_blend && dist_min_blend <= dist_min && - rng.range(0, biome_closest_blend->vertical_blend) >= - pos.Y - biome_closest_blend->max_pos.Y) - return biome_closest_blend; - - return (biome_closest) ? biome_closest : (Biome *)getRaw(BIOME_NONE); -} - - //////////////////////////////////////////////////////////////////////////////// void BiomeParamsOriginal::readParams(const Settings *settings) @@ -189,7 +124,7 @@ void BiomeParamsOriginal::writeParams(Settings *settings) const //////////////////////////////////////////////////////////////////////////////// BiomeGenOriginal::BiomeGenOriginal(BiomeManager *biomemgr, - BiomeParamsOriginal *params, v3s16 chunksize) + const BiomeParamsOriginal *params, v3s16 chunksize) { m_bmgr = biomemgr; m_params = params; @@ -224,17 +159,26 @@ BiomeGenOriginal::~BiomeGenOriginal() delete noise_humidity_blend; } -// Only usable in a mapgen thread -Biome *BiomeGenOriginal::calcBiomeAtPoint(v3s16 pos) const +BiomeGen *BiomeGenOriginal::clone(BiomeManager *biomemgr) const +{ + return new BiomeGenOriginal(biomemgr, m_params, m_csize); +} + +float BiomeGenOriginal::calcHeatAtPoint(v3s16 pos) const { - float heat = - NoisePerlin2D(&m_params->np_heat, pos.X, pos.Z, m_params->seed) + + return NoisePerlin2D(&m_params->np_heat, pos.X, pos.Z, m_params->seed) + NoisePerlin2D(&m_params->np_heat_blend, pos.X, pos.Z, m_params->seed); - float humidity = - NoisePerlin2D(&m_params->np_humidity, pos.X, pos.Z, m_params->seed) + +} + +float BiomeGenOriginal::calcHumidityAtPoint(v3s16 pos) const +{ + return NoisePerlin2D(&m_params->np_humidity, pos.X, pos.Z, m_params->seed) + NoisePerlin2D(&m_params->np_humidity_blend, pos.X, pos.Z, m_params->seed); +} - return calcBiomeFromNoise(heat, humidity, pos); +Biome *BiomeGenOriginal::calcBiomeAtPoint(v3s16 pos) const +{ + return calcBiomeFromNoise(calcHeatAtPoint(pos), calcHumidityAtPoint(pos), pos); } diff --git a/src/mapgen/mg_biome.h b/src/mapgen/mg_biome.h index be4cfea4d..c85afc3a0 100644 --- a/src/mapgen/mg_biome.h +++ b/src/mapgen/mg_biome.h @@ -97,6 +97,15 @@ public: virtual BiomeGenType getType() const = 0; + // Clone this BiomeGen and set a the new BiomeManager to be used by the copy + virtual BiomeGen *clone(BiomeManager *biomemgr) const = 0; + + // Check that the internal chunk size is what the mapgen expects, just to be sure. + inline void assertChunkSize(v3s16 expect) const + { + FATAL_ERROR_IF(m_csize != expect, "Chunk size mismatches"); + } + // Calculates the biome at the exact position provided. This function can // be called at any time, but may be less efficient than the latter methods, // depending on implementation. @@ -158,12 +167,18 @@ struct BiomeParamsOriginal : public BiomeParams { class BiomeGenOriginal : public BiomeGen { public: BiomeGenOriginal(BiomeManager *biomemgr, - BiomeParamsOriginal *params, v3s16 chunksize); + const BiomeParamsOriginal *params, v3s16 chunksize); virtual ~BiomeGenOriginal(); BiomeGenType getType() const { return BIOMEGEN_ORIGINAL; } + BiomeGen *clone(BiomeManager *biomemgr) const; + + // Slower, meant for Script API use + float calcHeatAtPoint(v3s16 pos) const; + float calcHumidityAtPoint(v3s16 pos) const; Biome *calcBiomeAtPoint(v3s16 pos) const; + void calcBiomeNoise(v3s16 pmin); biome_t *getBiomes(s16 *heightmap, v3s16 pmin); @@ -176,7 +191,7 @@ public: float *humidmap; private: - BiomeParamsOriginal *m_params; + const BiomeParamsOriginal *m_params; Noise *noise_heat; Noise *noise_humidity; @@ -229,14 +244,6 @@ public: virtual void clear(); - // For BiomeGen type 'BiomeGenOriginal' - float getHeatAtPosOriginal(v3s16 pos, NoiseParams &np_heat, - NoiseParams &np_heat_blend, u64 seed) const; - float getHumidityAtPosOriginal(v3s16 pos, NoiseParams &np_humidity, - NoiseParams &np_humidity_blend, u64 seed) const; - const Biome *getBiomeFromNoiseOriginal(float heat, float humidity, - v3s16 pos) const; - private: BiomeManager() {}; diff --git a/src/noise.cpp b/src/noise.cpp index e16564b05..a10efa3c4 100644 --- a/src/noise.cpp +++ b/src/noise.cpp @@ -369,7 +369,7 @@ float contour(float v) ///////////////////////// [ New noise ] //////////////////////////// -float NoisePerlin2D(NoiseParams *np, float x, float y, s32 seed) +float NoisePerlin2D(const NoiseParams *np, float x, float y, s32 seed) { float a = 0; float f = 1.0; @@ -395,7 +395,7 @@ float NoisePerlin2D(NoiseParams *np, float x, float y, s32 seed) } -float NoisePerlin3D(NoiseParams *np, float x, float y, float z, s32 seed) +float NoisePerlin3D(const NoiseParams *np, float x, float y, float z, s32 seed) { float a = 0; float f = 1.0; @@ -422,7 +422,7 @@ float NoisePerlin3D(NoiseParams *np, float x, float y, float z, s32 seed) } -Noise::Noise(NoiseParams *np_, s32 seed, u32 sx, u32 sy, u32 sz) +Noise::Noise(const NoiseParams *np_, s32 seed, u32 sx, u32 sy, u32 sz) { np = *np_; this->seed = seed; diff --git a/src/noise.h b/src/noise.h index 613879890..854781731 100644 --- a/src/noise.h +++ b/src/noise.h @@ -146,7 +146,7 @@ public: float *persist_buf = nullptr; float *result = nullptr; - Noise(NoiseParams *np, s32 seed, u32 sx, u32 sy, u32 sz=1); + Noise(const NoiseParams *np, s32 seed, u32 sx, u32 sy, u32 sz=1); ~Noise(); void setSize(u32 sx, u32 sy, u32 sz=1); @@ -192,8 +192,8 @@ private: }; -float NoisePerlin2D(NoiseParams *np, float x, float y, s32 seed); -float NoisePerlin3D(NoiseParams *np, float x, float y, float z, s32 seed); +float NoisePerlin2D(const NoiseParams *np, float x, float y, s32 seed); +float NoisePerlin3D(const NoiseParams *np, float x, float y, float z, s32 seed); inline float NoisePerlin2D_PO(NoiseParams *np, float x, float xoff, float y, float yoff, s32 seed) diff --git a/src/script/lua_api/l_mapgen.cpp b/src/script/lua_api/l_mapgen.cpp index cc93bdbd0..eb3d49a5e 100644 --- a/src/script/lua_api/l_mapgen.cpp +++ b/src/script/lua_api/l_mapgen.cpp @@ -482,9 +482,7 @@ int ModApiMapgen::l_get_biome_id(lua_State *L) { NO_MAP_LOCK_REQUIRED; - const char *biome_str = lua_tostring(L, 1); - if (!biome_str) - return 0; + const char *biome_str = luaL_checkstring(L, 1); const BiomeManager *bmgr = getServer(L)->getEmergeManager()->getBiomeManager(); if (!bmgr) @@ -527,30 +525,12 @@ int ModApiMapgen::l_get_heat(lua_State *L) v3s16 pos = read_v3s16(L, 1); - NoiseParams np_heat; - NoiseParams np_heat_blend; - - MapSettingsManager *settingsmgr = - getServer(L)->getEmergeManager()->map_settings_mgr; + const BiomeGen *biomegen = getServer(L)->getEmergeManager()->getBiomeGen(); - if (!settingsmgr->getMapSettingNoiseParams("mg_biome_np_heat", - &np_heat) || - !settingsmgr->getMapSettingNoiseParams("mg_biome_np_heat_blend", - &np_heat_blend)) - return 0; - - std::string value; - if (!settingsmgr->getMapSetting("seed", &value)) - return 0; - std::istringstream ss(value); - u64 seed; - ss >> seed; - - const BiomeManager *bmgr = getServer(L)->getEmergeManager()->getBiomeManager(); - if (!bmgr) + if (!biomegen || biomegen->getType() != BIOMEGEN_ORIGINAL) return 0; - float heat = bmgr->getHeatAtPosOriginal(pos, np_heat, np_heat_blend, seed); + float heat = ((BiomeGenOriginal*) biomegen)->calcHeatAtPoint(pos); lua_pushnumber(L, heat); @@ -566,31 +546,12 @@ int ModApiMapgen::l_get_humidity(lua_State *L) v3s16 pos = read_v3s16(L, 1); - NoiseParams np_humidity; - NoiseParams np_humidity_blend; - - MapSettingsManager *settingsmgr = - getServer(L)->getEmergeManager()->map_settings_mgr; + const BiomeGen *biomegen = getServer(L)->getEmergeManager()->getBiomeGen(); - if (!settingsmgr->getMapSettingNoiseParams("mg_biome_np_humidity", - &np_humidity) || - !settingsmgr->getMapSettingNoiseParams("mg_biome_np_humidity_blend", - &np_humidity_blend)) + if (!biomegen || biomegen->getType() != BIOMEGEN_ORIGINAL) return 0; - std::string value; - if (!settingsmgr->getMapSetting("seed", &value)) - return 0; - std::istringstream ss(value); - u64 seed; - ss >> seed; - - const BiomeManager *bmgr = getServer(L)->getEmergeManager()->getBiomeManager(); - if (!bmgr) - return 0; - - float humidity = bmgr->getHumidityAtPosOriginal(pos, np_humidity, - np_humidity_blend, seed); + float humidity = ((BiomeGenOriginal*) biomegen)->calcHumidityAtPoint(pos); lua_pushnumber(L, humidity); @@ -606,45 +567,11 @@ int ModApiMapgen::l_get_biome_data(lua_State *L) v3s16 pos = read_v3s16(L, 1); - NoiseParams np_heat; - NoiseParams np_heat_blend; - NoiseParams np_humidity; - NoiseParams np_humidity_blend; - - MapSettingsManager *settingsmgr = - getServer(L)->getEmergeManager()->map_settings_mgr; - - if (!settingsmgr->getMapSettingNoiseParams("mg_biome_np_heat", - &np_heat) || - !settingsmgr->getMapSettingNoiseParams("mg_biome_np_heat_blend", - &np_heat_blend) || - !settingsmgr->getMapSettingNoiseParams("mg_biome_np_humidity", - &np_humidity) || - !settingsmgr->getMapSettingNoiseParams("mg_biome_np_humidity_blend", - &np_humidity_blend)) + const BiomeGen *biomegen = getServer(L)->getEmergeManager()->getBiomeGen(); + if (!biomegen) return 0; - std::string value; - if (!settingsmgr->getMapSetting("seed", &value)) - return 0; - std::istringstream ss(value); - u64 seed; - ss >> seed; - - const BiomeManager *bmgr = getServer(L)->getEmergeManager()->getBiomeManager(); - if (!bmgr) - return 0; - - float heat = bmgr->getHeatAtPosOriginal(pos, np_heat, np_heat_blend, seed); - if (!heat) - return 0; - - float humidity = bmgr->getHumidityAtPosOriginal(pos, np_humidity, - np_humidity_blend, seed); - if (!humidity) - return 0; - - const Biome *biome = bmgr->getBiomeFromNoiseOriginal(heat, humidity, pos); + const Biome *biome = biomegen->calcBiomeAtPoint(pos); if (!biome || biome->index == OBJDEF_INVALID_INDEX) return 0; @@ -653,11 +580,16 @@ int ModApiMapgen::l_get_biome_data(lua_State *L) lua_pushinteger(L, biome->index); lua_setfield(L, -2, "biome"); - lua_pushnumber(L, heat); - lua_setfield(L, -2, "heat"); + if (biomegen->getType() == BIOMEGEN_ORIGINAL) { + float heat = ((BiomeGenOriginal*) biomegen)->calcHeatAtPoint(pos); + float humidity = ((BiomeGenOriginal*) biomegen)->calcHumidityAtPoint(pos); - lua_pushnumber(L, humidity); - lua_setfield(L, -2, "humidity"); + lua_pushnumber(L, heat); + lua_setfield(L, -2, "heat"); + + lua_pushnumber(L, humidity); + lua_setfield(L, -2, "humidity"); + } return 1; } @@ -1493,9 +1425,12 @@ int ModApiMapgen::l_generate_ores(lua_State *L) NO_MAP_LOCK_REQUIRED; EmergeManager *emerge = getServer(L)->getEmergeManager(); + if (!emerge || !emerge->mgparams) + return 0; Mapgen mg; - mg.seed = emerge->mgparams->seed; + // Intentionally truncates to s32, see Mapgen::Mapgen() + mg.seed = (s32)emerge->mgparams->seed; mg.vm = LuaVoxelManip::checkobject(L, 1)->vm; mg.ndef = getServer(L)->getNodeDefManager(); @@ -1519,9 +1454,12 @@ int ModApiMapgen::l_generate_decorations(lua_State *L) NO_MAP_LOCK_REQUIRED; EmergeManager *emerge = getServer(L)->getEmergeManager(); + if (!emerge || !emerge->mgparams) + return 0; Mapgen mg; - mg.seed = emerge->mgparams->seed; + // Intentionally truncates to s32, see Mapgen::Mapgen() + mg.seed = (s32)emerge->mgparams->seed; mg.vm = LuaVoxelManip::checkobject(L, 1)->vm; mg.ndef = getServer(L)->getNodeDefManager(); -- cgit v1.2.3