diff options
Diffstat (limited to 'src/mapgen.h')
| -rw-r--r-- | src/mapgen.h | 158 |
1 files changed, 120 insertions, 38 deletions
diff --git a/src/mapgen.h b/src/mapgen.h index abc3d2e89..b18bfb930 100644 --- a/src/mapgen.h +++ b/src/mapgen.h @@ -26,16 +26,19 @@ with this program; if not, write to the Free Software Foundation, Inc., #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_TREES 0x01 // Deprecated. Moved into mgv6 flags #define MG_CAVES 0x02 #define MG_DUNGEONS 0x04 -#define MG_FLAT 0x08 +#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; class INodeDefManager; @@ -44,6 +47,9 @@ extern FlagDesc flagdesc_mapgen[]; extern FlagDesc flagdesc_gennotify[]; class Biome; +class BiomeGen; +struct BiomeParams; +class BiomeManager; class EmergeManager; class MapBlock; class VoxelManipulator; @@ -73,9 +79,9 @@ enum GenNotifyType { // TODO(hmmmm/paramat): make stone type selection dynamic enum MgStoneType { - STONE, - DESERT_STONE, - SANDSTONE, + MGSTONE_STONE, + MGSTONE_DESERT_STONE, + MGSTONE_SANDSTONE, }; struct GenNotifyEvent { @@ -102,46 +108,55 @@ private: 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_INVALID, }; struct MapgenParams { - std::string mg_name; + MapgenType mgtype; 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; + BiomeParams *bparams; MapgenParams() : - mg_name(DEFAULT_MAPGEN), + mgtype(MAPGEN_DEFAULT), chunksize(5), seed(0), water_level(1), flags(MG_CAVES | MG_LIGHT | MG_DECORATIONS), - np_biome_heat(NoiseParams(50, 50, v3f(750.0, 750.0, 750.0), 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(750.0, 750.0, 750.0), 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; + bparams(NULL) + { + } + + virtual ~MapgenParams(); + + virtual void readParams(const Settings *settings); + virtual void writeParams(Settings *settings) const; }; + +/* + 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; + s32 seed; int water_level; u32 flags; bool generating; @@ -152,19 +167,20 @@ public: u32 blockseed; s16 *heightmap; - u8 *biomemap; - float *heatmap; - float *humidmap; + biome_t *biomemap; v3s16 csize; + BiomeGen *biomegen; GenerateNotifier gennotify; Mapgen(); Mapgen(int mapgenid, MapgenParams *params, EmergeManager *emerge); virtual ~Mapgen(); - static u32 getBlockSeed(v3s16 p, int seed); - static u32 getBlockSeed2(v3s16 p, int seed); + virtual MapgenType getType() const { return MAPGEN_INVALID; } + + 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); @@ -188,15 +204,81 @@ public: // 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); DISABLE_CLASS_COPY(Mapgen); }; -struct MapgenFactory { - virtual Mapgen *createMapgen(int mgid, MapgenParams *params, - EmergeManager *emerge) = 0; - virtual MapgenSpecificParams *createMapgenParams() = 0; - virtual ~MapgenFactory() {} +/* + 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 void generateDungeons(s16 max_stone_y, MgStoneType stone_type); + virtual MgStoneType generateBiomes(); + 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_water_source; + content_t c_river_water_source; + content_t c_desert_stone; + content_t c_sandstone; + + // Content required for generateDungeons + content_t c_cobble; + content_t c_stair_cobble; + content_t c_mossycobble; + content_t c_sandstonebrick; + content_t c_stair_sandstonebrick; + + int ystride; + int zstride; + int zstride_1d; + int zstride_1u1d; + + u32 spflags; + + NoiseParams np_cave1; + NoiseParams np_cave2; + float cave_width; }; #endif |