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minetest/src/mapgen.h

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/*
Minetest
Copyright (C) 2010-2013 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
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.
*/
#ifndef MAPGEN_HEADER
#define MAPGEN_HEADER
#include "irrlichttypes_bloated.h"
#include "util/container.h" // UniqueQueue
#include "gamedef.h"
#include "nodedef.h"
#include "mapnode.h"
#include "noise.h"
#include "settings.h"
/////////////////// Mapgen flags
#define MG_TREES 0x01
#define MG_CAVES 0x02
#define MG_DUNGEONS 0x04
#define MGV6_JUNGLES 0x08
#define MGV6_BIOME_BLEND 0x10
#define MG_FLAT 0x20
#define MG_NOLIGHT 0x40
#define MGV7_MOUNTAINS 0x80
#define MGV7_RIDGES 0x100
/////////////////// Ore generation flags
// Use absolute value of height to determine ore placement
#define OREFLAG_ABSHEIGHT 0x01
// Use 3d noise to get density of ore placement, instead of just the position
#define OREFLAG_DENSITY 0x02 // not yet implemented
// For claylike ore types, place ore if the number of surrounding
// nodes isn't the specified node
#define OREFLAG_NODEISNT 0x04 // not yet implemented
/////////////////// Decoration flags
#define DECO_PLACE_CENTER_X 1
#define DECO_PLACE_CENTER_Y 2
#define DECO_PLACE_CENTER_Z 4
#define ORE_RANGE_ACTUAL 1
#define ORE_RANGE_MIRROR 2
#define NUM_GEN_NOTIFY 6
extern FlagDesc flagdesc_mapgen[];
extern FlagDesc flagdesc_ore[];
extern FlagDesc flagdesc_deco_schematic[];
extern FlagDesc flagdesc_gennotify[];
class BiomeDefManager;
class Biome;
class EmergeManager;
class MapBlock;
class ManualMapVoxelManipulator;
class VoxelManipulator;
struct BlockMakeData;
class VoxelArea;
class Map;
enum MapgenObject {
MGOBJ_VMANIP,
MGOBJ_HEIGHTMAP,
MGOBJ_BIOMEMAP,
MGOBJ_HEATMAP,
MGOBJ_HUMIDMAP,
MGOBJ_GENNOTIFY
};
enum GenNotify {
GENNOTIFY_DUNGEON,
GENNOTIFY_TEMPLE,
GENNOTIFY_CAVE_BEGIN,
GENNOTIFY_CAVE_END,
GENNOTIFY_LARGECAVE_BEGIN,
GENNOTIFY_LARGECAVE_END
};
enum OreType {
ORE_SCATTER,
ORE_SHEET,
ORE_CLAYLIKE
};
struct MapgenParams {
std::string mg_name;
int chunksize;
u64 seed;
int water_level;
u32 flags;
MapgenParams() {
mg_name = "v6";
seed = 0;
water_level = 1;
chunksize = 5;
flags = MG_TREES | MG_CAVES | MGV6_BIOME_BLEND;
}
virtual bool readParams(Settings *settings) { return true; }
virtual void writeParams(Settings *settings) {}
virtual ~MapgenParams() {}
};
class Mapgen {
public:
int seed;
int water_level;
bool generating;
int id;
ManualMapVoxelManipulator *vm;
INodeDefManager *ndef;
s16 *heightmap;
u8 *biomemap;
v3s16 csize;
u32 gennotify;
std::vector<v3s16> *gen_notifications[NUM_GEN_NOTIFY];
Mapgen();
virtual ~Mapgen();
s16 findGroundLevelFull(v2s16 p2d);
s16 findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax);
void updateHeightmap(v3s16 nmin, v3s16 nmax);
void updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax);
void setLighting(v3s16 nmin, v3s16 nmax, u8 light);
void lightSpread(VoxelArea &a, v3s16 p, u8 light);
void calcLighting(v3s16 nmin, v3s16 nmax);
void calcLightingOld(v3s16 nmin, v3s16 nmax);
virtual void makeChunk(BlockMakeData *data) {}
virtual int getGroundLevelAtPoint(v2s16 p) { return 0; }
};
struct MapgenFactory {
virtual Mapgen *createMapgen(int mgid, MapgenParams *params,
EmergeManager *emerge) = 0;
virtual MapgenParams *createMapgenParams() = 0;
virtual ~MapgenFactory() {}
};
class Ore {
public:
std::string ore_name;
std::vector<std::string> wherein_names;
content_t ore;
std::vector<content_t> wherein; // the node to be replaced
u32 clust_scarcity; // ore cluster has a 1-in-clust_scarcity chance of appearing at a node
s16 clust_num_ores; // how many ore nodes are in a chunk
s16 clust_size; // how large (in nodes) a chunk of ore is
s16 height_min;
s16 height_max;
u8 ore_param2; // to set node-specific attributes
u32 flags; // attributes for this ore
float nthresh; // threshhold for noise at which an ore is placed
NoiseParams *np; // noise for distribution of clusters (NULL for uniform scattering)
Noise *noise;
Ore() {
ore = CONTENT_IGNORE;
np = NULL;
noise = NULL;
}
virtual ~Ore();
void resolveNodeNames(INodeDefManager *ndef);
void placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax) = 0;
};
class OreScatter : public Ore {
~OreScatter() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
class OreSheet : public Ore {
~OreSheet() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
Ore *createOre(OreType type);
enum DecorationType {
DECO_SIMPLE,
DECO_SCHEMATIC,
DECO_LSYSTEM
};
#if 0
struct CutoffData {
VoxelArea a;
Decoration *deco;
//v3s16 p;
//v3s16 size;
//s16 height;
CutoffData(s16 x, s16 y, s16 z, s16 h) {
p = v3s16(x, y, z);
height = h;
}
};
#endif
class Decoration {
public:
INodeDefManager *ndef;
int mapseed;
std::string place_on_name;
content_t c_place_on;
s16 sidelen;
float fill_ratio;
NoiseParams *np;
std::set<u8> biomes;
//std::list<CutoffData> cutoffs;
//JMutex cutoff_mutex;
Decoration();
virtual ~Decoration();
virtual void resolveNodeNames(INodeDefManager *ndef);
void placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
void placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) = 0;
virtual int getHeight() = 0;
virtual std::string getName() = 0;
};
class DecoSimple : public Decoration {
public:
std::string deco_name;
std::string spawnby_name;
content_t c_deco;
content_t c_spawnby;
s16 deco_height;
s16 deco_height_max;
s16 nspawnby;
std::vector<std::string> decolist_names;
std::vector<content_t> c_decolist;
~DecoSimple() {}
void resolveNodeNames(INodeDefManager *ndef);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p);
virtual int getHeight();
virtual std::string getName();
};
#define MTSCHEM_FILE_SIGNATURE 0x4d54534d // 'MTSM'
#define MTSCHEM_FILE_VER_HIGHEST_READ 3
#define MTSCHEM_FILE_VER_HIGHEST_WRITE 3
#define MTSCHEM_PROB_NEVER 0x00
#define MTSCHEM_PROB_ALWAYS 0xFF
class DecoSchematic : public Decoration {
public:
std::string filename;
std::vector<std::string> *node_names;
std::vector<content_t> c_nodes;
std::map<std::string, std::string> replacements;
u32 flags;
Rotation rotation;
v3s16 size;
MapNode *schematic;
u8 *slice_probs;
DecoSchematic();
~DecoSchematic();
void resolveNodeNames(INodeDefManager *ndef);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p);
virtual int getHeight();
virtual std::string getName();
void blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
Rotation rot, bool force_placement);
bool loadSchematicFile();
void saveSchematicFile(INodeDefManager *ndef);
bool getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2);
void placeStructure(Map *map, v3s16 p);
void applyProbabilities(v3s16 p0,
std::vector<std::pair<v3s16, u8> > *plist,
std::vector<std::pair<s16, u8> > *splist);
};
void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
std::vector<content_t> *usednodes);
/*
class DecoLSystem : public Decoration {
public:
virtual void generate(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
};
*/
Decoration *createDecoration(DecorationType type);
#endif
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