forked from Mirrorlandia_minetest/minetest
49073ba2c3
To terminate unwanted shadows from floatlands or realms above Also add to LuaVoxelManip calc_lighting for use in mapgen mods Remove the 2 argument calcLighting, mapgens now use the 5 argument form to specify the volumes for propagateSunlight and spreadLight In mgsinglenode replace calcLighting with setLighting and clean-up use of tabs and spaces
196 lines
4.8 KiB
C++
196 lines
4.8 KiB
C++
/*
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Minetest
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Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MAPGEN_HEADER
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#define MAPGEN_HEADER
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#include "noise.h"
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#include "nodedef.h"
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#include "mapnode.h"
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#include "util/string.h"
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#include "util/container.h"
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#define DEFAULT_MAPGEN "v6"
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/////////////////// Mapgen flags
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#define MG_TREES 0x01
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#define MG_CAVES 0x02
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#define MG_DUNGEONS 0x04
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#define MG_FLAT 0x08
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#define MG_LIGHT 0x10
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#define MG_DECORATIONS 0x20
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class Settings;
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class MMVManip;
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class INodeDefManager;
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extern FlagDesc flagdesc_mapgen[];
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extern FlagDesc flagdesc_gennotify[];
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class Biome;
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class EmergeManager;
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class MapBlock;
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class VoxelManipulator;
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struct BlockMakeData;
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class VoxelArea;
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class Map;
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enum MapgenObject {
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MGOBJ_VMANIP,
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MGOBJ_HEIGHTMAP,
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MGOBJ_BIOMEMAP,
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MGOBJ_HEATMAP,
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MGOBJ_HUMIDMAP,
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MGOBJ_GENNOTIFY
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};
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enum GenNotifyType {
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GENNOTIFY_DUNGEON,
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GENNOTIFY_TEMPLE,
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GENNOTIFY_CAVE_BEGIN,
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GENNOTIFY_CAVE_END,
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GENNOTIFY_LARGECAVE_BEGIN,
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GENNOTIFY_LARGECAVE_END,
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GENNOTIFY_DECORATION,
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NUM_GENNOTIFY_TYPES
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};
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// TODO(hmmmm/paramat): make stone type selection dynamic
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enum MgStoneType {
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STONE,
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DESERT_STONE,
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SANDSTONE,
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};
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struct GenNotifyEvent {
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GenNotifyType type;
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v3s16 pos;
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u32 id;
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};
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class GenerateNotifier {
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public:
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GenerateNotifier();
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GenerateNotifier(u32 notify_on, std::set<u32> *notify_on_deco_ids);
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void setNotifyOn(u32 notify_on);
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void setNotifyOnDecoIds(std::set<u32> *notify_on_deco_ids);
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bool addEvent(GenNotifyType type, v3s16 pos, u32 id=0);
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void getEvents(std::map<std::string, std::vector<v3s16> > &event_map,
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bool peek_events=false);
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private:
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u32 m_notify_on;
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std::set<u32> *m_notify_on_deco_ids;
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std::list<GenNotifyEvent> m_notify_events;
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};
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struct MapgenSpecificParams {
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virtual void readParams(const Settings *settings) = 0;
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virtual void writeParams(Settings *settings) const = 0;
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virtual ~MapgenSpecificParams() {}
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};
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struct MapgenParams {
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std::string mg_name;
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s16 chunksize;
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u64 seed;
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s16 water_level;
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u32 flags;
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NoiseParams np_biome_heat;
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NoiseParams np_biome_heat_blend;
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NoiseParams np_biome_humidity;
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NoiseParams np_biome_humidity_blend;
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MapgenSpecificParams *sparams;
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MapgenParams() :
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mg_name(DEFAULT_MAPGEN),
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chunksize(5),
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seed(0),
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water_level(1),
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flags(MG_CAVES | MG_LIGHT | MG_DECORATIONS),
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np_biome_heat(NoiseParams(50, 50, v3f(750.0, 750.0, 750.0), 5349, 3, 0.5, 2.0)),
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np_biome_heat_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 13, 2, 1.0, 2.0)),
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np_biome_humidity(NoiseParams(50, 50, v3f(750.0, 750.0, 750.0), 842, 3, 0.5, 2.0)),
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np_biome_humidity_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 90003, 2, 1.0, 2.0)),
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sparams(NULL)
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{}
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void load(const Settings &settings);
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void save(Settings &settings) const;
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};
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class Mapgen {
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public:
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int seed;
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int water_level;
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u32 flags;
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bool generating;
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int id;
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MMVManip *vm;
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INodeDefManager *ndef;
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u32 blockseed;
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s16 *heightmap;
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u8 *biomemap;
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float *heatmap;
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float *humidmap;
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v3s16 csize;
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GenerateNotifier gennotify;
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Mapgen();
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Mapgen(int mapgenid, MapgenParams *params, EmergeManager *emerge);
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virtual ~Mapgen();
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static u32 getBlockSeed(v3s16 p, int seed);
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static u32 getBlockSeed2(v3s16 p, int seed);
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s16 findGroundLevelFull(v2s16 p2d);
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s16 findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax);
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s16 findLiquidSurface(v2s16 p2d, s16 ymin, s16 ymax);
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void updateHeightmap(v3s16 nmin, v3s16 nmax);
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void updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax);
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void setLighting(u8 light, v3s16 nmin, v3s16 nmax);
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void lightSpread(VoxelArea &a, v3s16 p, u8 light);
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void calcLighting(v3s16 nmin, v3s16 nmax, v3s16 full_nmin, v3s16 full_nmax,
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bool propagate_shadow = true);
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void propagateSunlight(v3s16 nmin, v3s16 nmax, bool propagate_shadow);
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void spreadLight(v3s16 nmin, v3s16 nmax);
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virtual void makeChunk(BlockMakeData *data) {}
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virtual int getGroundLevelAtPoint(v2s16 p) { return 0; }
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private:
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DISABLE_CLASS_COPY(Mapgen);
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};
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struct MapgenFactory {
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virtual Mapgen *createMapgen(int mgid, MapgenParams *params,
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EmergeManager *emerge) = 0;
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virtual MapgenSpecificParams *createMapgenParams() = 0;
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virtual ~MapgenFactory() {}
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};
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#endif
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