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Mapgen: Combine generateBiomes, dustTopNodes, and generateCaves

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This commit condenses the above methods into a single implementation used by
V7, V5, Flat, Fractal, and Valleys mapgens and introduces MapgenBasic.
This commit is contained in:
kwolekr 2016-05-02 02:24:57 -04:00
parent 76f4856479
commit 87bc39dca7
12 changed files with 316 additions and 1161 deletions
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56
src/mapgen.h
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@ -46,6 +46,7 @@ extern FlagDesc flagdesc_gennotify[];
class Biome;
class BiomeGen;
struct BiomeParams;
class BiomeManager;
class EmergeManager;
class MapBlock;
class VoxelManipulator;
@ -137,6 +138,16 @@ struct MapgenParams {
void save(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;
@ -189,6 +200,51 @@ private:
DISABLE_CLASS_COPY(Mapgen);
};
/*
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:
EmergeManager *m_emerge;
BiomeManager *bmgr;
Noise *noise_filler_depth;
Noise *noise_cave1;
Noise *noise_cave2;
v3s16 node_min;
v3s16 node_max;
v3s16 full_node_min;
v3s16 full_node_max;
content_t c_stone;
content_t c_water_source;
content_t c_river_water_source;
content_t c_desert_stone;
content_t c_sandstone;
int ystride;
int zstride_1d;
float cave_width;
MapgenBasic(int mapgenid, MapgenParams *params, EmergeManager *emerge);
virtual MgStoneType generateBiomes();
virtual void dustTopNodes();
virtual void generateCaves(s16 max_stone_y, s16 large_cave_depth);
};
struct MapgenFactory {
virtual Mapgen *createMapgen(int mgid, MapgenParams *params,
EmergeManager *emerge) = 0;