/*
Minetest
-Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2015 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2013-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2015-2017 paramat
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
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#ifndef MAPGEN_HEADER
-#define MAPGEN_HEADER
+#pragma once
#include "noise.h"
#include "nodedef.h"
-#include "mapnode.h"
#include "util/string.h"
#include "util/container.h"
-#define DEFAULT_MAPGEN "v6"
+#define MAPGEN_DEFAULT MAPGEN_V7
+#define MAPGEN_DEFAULT_NAME "v7"
/////////////////// Mapgen flags
-#define MG_TREES 0x01
-#define MG_CAVES 0x02
-#define MG_DUNGEONS 0x04
-#define MG_FLAT 0x08
-#define MG_LIGHT 0x10
+#define MG_TREES 0x01 // Deprecated. Moved into mgv6 flags
+#define MG_CAVES 0x02
+#define MG_DUNGEONS 0x04
+#define MG_FLAT 0x08 // Deprecated. Moved into mgv6 flags
+#define MG_LIGHT 0x10
+#define MG_DECORATIONS 0x20
+
+typedef u8 biome_t; // copy from mg_biome.h to avoid an unnecessary include
class Settings;
class MMVManip;
extern FlagDesc flagdesc_gennotify[];
class Biome;
+class BiomeGen;
+struct BiomeParams;
+class BiomeManager;
class EmergeManager;
class MapBlock;
class VoxelManipulator;
NUM_GENNOTIFY_TYPES
};
-// TODO(hmmmm/paramat): make stone type selection dynamic
enum MgStoneType {
- STONE,
- DESERT_STONE,
- SANDSTONE,
+ MGSTONE_STONE,
+ MGSTONE_DESERT_STONE,
+ MGSTONE_SANDSTONE,
+ MGSTONE_OTHER,
};
struct GenNotifyEvent {
class GenerateNotifier {
public:
- GenerateNotifier();
+ GenerateNotifier() = default;
GenerateNotifier(u32 notify_on, std::set<u32> *notify_on_deco_ids);
void setNotifyOn(u32 notify_on);
bool peek_events=false);
private:
- u32 m_notify_on;
+ u32 m_notify_on = 0;
std::set<u32> *m_notify_on_deco_ids;
std::list<GenNotifyEvent> m_notify_events;
};
-struct MapgenSpecificParams {
- virtual void readParams(const Settings *settings) = 0;
- virtual void writeParams(Settings *settings) const = 0;
- virtual ~MapgenSpecificParams() {}
+enum MapgenType {
+ MAPGEN_V5,
+ MAPGEN_V6,
+ MAPGEN_V7,
+ MAPGEN_FLAT,
+ MAPGEN_FRACTAL,
+ MAPGEN_VALLEYS,
+ MAPGEN_SINGLENODE,
+ MAPGEN_CARPATHIAN,
+ MAPGEN_INVALID,
};
struct MapgenParams {
- std::string mg_name;
- s16 chunksize;
- u64 seed;
- s16 water_level;
- u32 flags;
-
- NoiseParams np_biome_heat;
- NoiseParams np_biome_heat_blend;
- NoiseParams np_biome_humidity;
- NoiseParams np_biome_humidity_blend;
-
- MapgenSpecificParams *sparams;
-
- MapgenParams() :
- mg_name(DEFAULT_MAPGEN),
- chunksize(5),
- seed(0),
- water_level(1),
- flags(MG_TREES | MG_CAVES | MG_LIGHT),
- np_biome_heat(NoiseParams(50, 50, v3f(1000.0, 1000.0, 1000.0), 5349, 3, 0.5, 2.0)),
- np_biome_heat_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 13, 2, 1.0, 2.0)),
- np_biome_humidity(NoiseParams(50, 50, v3f(1000.0, 1000.0, 1000.0), 842, 3, 0.5, 2.0)),
- np_biome_humidity_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 90003, 2, 1.0, 2.0)),
- sparams(NULL)
- {}
-
- void load(const Settings &settings);
- void save(Settings &settings) const;
+ MapgenParams() = default;
+ virtual ~MapgenParams();
+
+ MapgenType mgtype = MAPGEN_DEFAULT;
+ s16 chunksize = 5;
+ u64 seed = 0;
+ s16 water_level = 1;
+ s16 mapgen_limit = MAX_MAP_GENERATION_LIMIT;
+ u32 flags = MG_CAVES | MG_LIGHT | MG_DECORATIONS;
+
+ BiomeParams *bparams = nullptr;
+
+ s16 mapgen_edge_min = -MAX_MAP_GENERATION_LIMIT;
+ s16 mapgen_edge_max = MAX_MAP_GENERATION_LIMIT;
+
+ virtual void readParams(const Settings *settings);
+ virtual void writeParams(Settings *settings) const;
+
+ bool saoPosOverLimit(const v3f &p);
+ s32 getSpawnRangeMax();
+
+private:
+ void calcMapgenEdges();
+
+ float m_sao_limit_min = -MAX_MAP_GENERATION_LIMIT * BS;
+ float m_sao_limit_max = MAX_MAP_GENERATION_LIMIT * BS;
+ bool m_mapgen_edges_calculated = false;
};
+
+/*
+ Generic interface for map generators. All mapgens must inherit this class.
+ If a feature exposed by a public member pointer is not supported by a
+ certain mapgen, it must be set to NULL.
+
+ Apart from makeChunk, getGroundLevelAtPoint, and getSpawnLevelAtPoint, all
+ methods can be used by constructing a Mapgen base class and setting the
+ appropriate public members (e.g. vm, ndef, and so on).
+*/
class Mapgen {
public:
- int seed;
- int water_level;
- u32 flags;
- bool generating;
- int id;
+ s32 seed = 0;
+ int water_level = 0;
+ int mapgen_limit = 0;
+ u32 flags = 0;
+ bool generating = false;
+ int id = -1;
- MMVManip *vm;
- INodeDefManager *ndef;
+ MMVManip *vm = nullptr;
+ INodeDefManager *ndef = nullptr;
u32 blockseed;
- s16 *heightmap;
- u8 *biomemap;
- float *heatmap;
- float *humidmap;
+ s16 *heightmap = nullptr;
+ biome_t *biomemap = nullptr;
v3s16 csize;
+ BiomeGen *biomegen = nullptr;
GenerateNotifier gennotify;
- Mapgen();
+ Mapgen() = default;
Mapgen(int mapgenid, MapgenParams *params, EmergeManager *emerge);
- virtual ~Mapgen();
+ virtual ~Mapgen() = default;
+ DISABLE_CLASS_COPY(Mapgen);
+
+ virtual MapgenType getType() const { return MAPGEN_INVALID; }
- static u32 getBlockSeed(v3s16 p, int seed);
- static u32 getBlockSeed2(v3s16 p, int seed);
+ static u32 getBlockSeed(v3s16 p, s32 seed);
+ static u32 getBlockSeed2(v3s16 p, s32 seed);
s16 findGroundLevelFull(v2s16 p2d);
s16 findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax);
+ s16 findLiquidSurface(v2s16 p2d, s16 ymin, s16 ymax);
void updateHeightmap(v3s16 nmin, v3s16 nmax);
void updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax);
void setLighting(u8 light, v3s16 nmin, v3s16 nmax);
void lightSpread(VoxelArea &a, v3s16 p, u8 light);
-
- void calcLighting(v3s16 nmin, v3s16 nmax);
- void calcLighting(v3s16 nmin, v3s16 nmax,
- v3s16 full_nmin, v3s16 full_nmax);
-
- void propagateSunlight(v3s16 nmin, v3s16 nmax);
+ void calcLighting(v3s16 nmin, v3s16 nmax, v3s16 full_nmin, v3s16 full_nmax,
+ bool propagate_shadow = true);
+ void propagateSunlight(v3s16 nmin, v3s16 nmax, bool propagate_shadow);
void spreadLight(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 MapgenSpecificParams *createMapgenParams() = 0;
- virtual ~MapgenFactory() {}
+ // getSpawnLevelAtPoint() is a function within each mapgen that returns a
+ // suitable y co-ordinate for player spawn ('suitable' usually meaning
+ // within 16 nodes of water_level). If a suitable spawn level cannot be
+ // found at the specified (X, Z) 'MAX_MAP_GENERATION_LIMIT' is returned to
+ // signify this and to cause Server::findSpawnPos() to try another (X, Z).
+ virtual int getSpawnLevelAtPoint(v2s16 p) { return 0; }
+
+ // Mapgen management functions
+ static MapgenType getMapgenType(const std::string &mgname);
+ static const char *getMapgenName(MapgenType mgtype);
+ static Mapgen *createMapgen(MapgenType mgtype, int mgid,
+ MapgenParams *params, EmergeManager *emerge);
+ static MapgenParams *createMapgenParams(MapgenType mgtype);
+ static void getMapgenNames(std::vector<const char *> *mgnames, bool include_hidden);
+
+private:
+ // isLiquidHorizontallyFlowable() is a helper function for updateLiquid()
+ // that checks whether there are floodable nodes without liquid beneath
+ // the node at index vi.
+ inline bool isLiquidHorizontallyFlowable(u32 vi, v3s16 em);
};
-#endif
+/*
+ MapgenBasic is a Mapgen implementation that handles basic functionality
+ the majority of conventional mapgens will probably want to use, but isn't
+ generic enough to be included as part of the base Mapgen class (such as
+ generating biome terrain over terrain node skeletons, generating caves,
+ dungeons, etc.)
+
+ Inherit MapgenBasic instead of Mapgen to add this basic functionality to
+ your mapgen without having to reimplement it. Feel free to override any of
+ these methods if you desire different or more advanced behavior.
+
+ Note that you must still create your own generateTerrain implementation when
+ inheriting MapgenBasic.
+*/
+class MapgenBasic : public Mapgen {
+public:
+ MapgenBasic(int mapgenid, MapgenParams *params, EmergeManager *emerge);
+ virtual ~MapgenBasic();
+
+ virtual void generateCaves(s16 max_stone_y, s16 large_cave_depth);
+ virtual bool generateCaverns(s16 max_stone_y);
+ virtual void generateDungeons(s16 max_stone_y,
+ MgStoneType stone_type, content_t biome_stone);
+ virtual void generateBiomes(MgStoneType *mgstone_type,
+ content_t *biome_stone, s16 biome_zero_level);
+ virtual void dustTopNodes();
+
+protected:
+ EmergeManager *m_emerge;
+ BiomeManager *m_bmgr;
+
+ Noise *noise_filler_depth;
+
+ v3s16 node_min;
+ v3s16 node_max;
+ v3s16 full_node_min;
+ v3s16 full_node_max;
+
+ // Content required for generateBiomes
+ content_t c_stone;
+ content_t c_desert_stone;
+ content_t c_sandstone;
+ content_t c_water_source;
+ content_t c_river_water_source;
+ content_t c_lava_source;
+
+ // Content required for generateDungeons
+ content_t c_cobble;
+ content_t c_stair_cobble;
+ content_t c_mossycobble;
+ content_t c_stair_desert_stone;
+ content_t c_sandstonebrick;
+ content_t c_stair_sandstone_block;
+
+ int ystride;
+ int zstride;
+ int zstride_1d;
+ int zstride_1u1d;
+
+ u32 spflags;
+
+ NoiseParams np_cave1;
+ NoiseParams np_cave2;
+ NoiseParams np_cavern;
+ float cave_width;
+ float cavern_limit;
+ float cavern_taper;
+ float cavern_threshold;
+ int lava_depth;
+};
projects / dragonfireclient.git / blobdiff