minetest.git - modified minetest for gpcfs purposes

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/* Minetest-c55 Copyright (C) 2010-2011 kwolekr, Ryan Kwolek <kwolekr2@cs.scranton.edu> 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 the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "biome.h" #include "nodedef.h" #include "map.h" //for ManualMapVoxelManipulator #include "log.h" #include "main.h" #define BT_NONE 0 #define BT_OCEAN 1 #define BT_LAKE 2 #define BT_SBEACH 3 #define BT_GBEACH 4 #define BT_PLAINS 5 #define BT_HILLS 6 #define BT_EXTREMEHILLS 7 #define BT_MOUNTAINS 8 #define BT_DESERT 9 #define BT_DESERTHILLS 10 #define BT_HELL 11 #define BT_AETHER 12 #define BT_BTMASK 0x3F #define BTF_SNOW 0x40 #define BTF_FOREST 0x80 #define BGFREQ_1 ( 0.40) #define BGFREQ_2 (BGFREQ_1 + 0.05) #define BGFREQ_3 (BGFREQ_2 + 0.08) #define BGFREQ_4 (BGFREQ_3 + 0.35) #define BGFREQ_5 (BGFREQ_4 + 0.18) //BGFREQ_5 is not checked as an upper bound; it ought to sum up to 1.00, but it's okay if it doesn't. /*float bg1_temps[] = {0.0}; int bg1_biomes[] = {BT_OCEAN}; float bg2_temps[] = {10.0}; int bg2_biomes[] = {BT_GBEACH, BT_SBEACH}; float bg3_temps[] = {30.0, 40.0}; int bg3_biomes[] = {BT_HILLS, BT_EXTREMEHILLS, BT_MOUNTAINS}; float bg4_temps[] = {25.0, 30.0, 35.0, 40.0}; int bg4_biomes[] = {BT_HILLS, BT_EXTREMEHILLS, BT_MOUNTAINS, BT_DESERT, BT_DESERTHILLS}; float bg5_temps[] = {5.0, 40.0}; int bg5_biomes[] = {BT_LAKE, BT_PLAINS, BT_DESERT};*/ NoiseParams np_default = {20.0, 15.0, v3f(250., 250., 250.), 82341, 5, 0.6}; BiomeDefManager::BiomeDefManager(IGameDef *gamedef) { this->m_gamedef = gamedef; this->ndef = gamedef->ndef(); //the initial biome group bgroups.push_back(new std::vector<Biome *>); } BiomeDefManager::~BiomeDefManager() { for (unsigned int i = 0; i != bgroups.size(); i++) delete bgroups[i]; } Biome *BiomeDefManager::createBiome(BiomeTerrainType btt) { switch (btt) { case BIOME_TERRAIN_NORMAL: return new Biome; case BIOME_TERRAIN_LIQUID: return new BiomeLiquid; case BIOME_TERRAIN_NETHER: return new BiomeHell; case BIOME_TERRAIN_AETHER: return new BiomeAether; case BIOME_TERRAIN_FLAT: return new BiomeSuperflat; } return NULL; } void BiomeDefManager::addBiomeGroup(float freq) { int size = bgroup_freqs.size(); float newfreq = freq; if (size) newfreq += bgroup_freqs[size - 1]; bgroup_freqs.push_back(newfreq); bgroups.push_back(new std::vector<Biome *>); verbosestream << "BiomeDefManager: added biome group with frequency " << newfreq << std::endl; } void BiomeDefManager::addBiome(Biome *b) { std::vector<Biome *> *bgroup; if ((unsigned int)b->groupid >= bgroups.size()) { errorstream << "BiomeDefManager: attempted to add biome '" << b->name << "' to nonexistent biome group " << b->groupid << std::endl; return; } bgroup = bgroups[b->groupid]; bgroup->push_back(b); verbosestream << "BiomeDefManager: added biome '" << b->name << "' to biome group " << b->groupid << std::endl; } void BiomeDefManager::addDefaultBiomes() { Biome *b; b = new Biome; b->name = "Default"; b->n_top = MapNode(ndef->getId("mapgen_stone")); b->n_filler = b->n_top; b->ntopnodes = 0; b->height_min = -MAP_GENERATION_LIMIT; b->height_max = MAP_GENERATION_LIMIT; b->heat_min = FLT_MIN; b->heat_max = FLT_MAX; b->humidity_min = FLT_MIN; b->humidity_max = FLT_MAX; b->np = &np_default; biome_default = b; } Biome *BiomeDefManager::getBiome(float bgfreq, float heat, float humidity) { std::vector<Biome *> *bgroup; Biome *b; int i; int ngroups = bgroup_freqs.size(); if (!ngroups) return biome_default; for (i = 0; (i != ngroups) && (bgfreq > bgroup_freqs[i]); i++); bgroup = bgroups[i]; int nbiomes = bgroup->size(); for (i = 0; i != nbiomes; i++) { b = bgroup->operator[](i); if (heat >= b->heat_min && heat <= b->heat_max && humidity >= b->humidity_min && humidity <= b->humidity_max) return b; } return biome_default; } //////////////////////////// [ Generic biome ] //////////////////////////////// int Biome::getSurfaceHeight(float noise_terrain) { return np->offset + np->scale * noise_terrain; } void Biome::genColumn(Mapgen *mapgen, int x, int z, int y1, int y2) { } ///////////////////////////// [ Ocean biome ] ///////////////////////////////// void BiomeLiquid::genColumn(Mapgen *mapgen, int x, int z, int y1, int y2) { } ///////////////////////////// [ Nether biome ] ///////////////////////////////// int BiomeHell::getSurfaceHeight(float noise_terrain) { return np->offset + np->scale * noise_terrain; } void BiomeHell::genColumn(Mapgen *mapgen, int x, int z, int y1, int y2) { } ///////////////////////////// [ Aether biome ] //////////////////////////////// int BiomeAether::getSurfaceHeight(float noise_terrain) { return np->offset + np->scale * noise_terrain; } void BiomeAether::genColumn(Mapgen *mapgen, int x, int z, int y1, int y2) { } /////////////////////////// [ Superflat biome ] /////////////////////////////// int BiomeSuperflat::getSurfaceHeight(float noise_terrain) { return ntopnodes; } void BiomeSuperflat::genColumn(Mapgen *mapgen, int x, int z, int y1, int y2) { }


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