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Dungeons: Settable density noise, move number calculation to mapgens (#8473)

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Add user-settable noise parameters for dungeon density to each mapgen,
except V6 which hardcodes this noise parameter.

Move the calculation of number of dungeons generated in a mapchunk out
of dungeongen.cpp and into mapgen code, to allow mapgens to generate
any desired number of dungeons in a mapchunk, instead of being forced
to have number of dungeons determined by a density noise.

This is more flexible and allows mapgens to use dungeon generation to
create custom structures, such as occasional mega-dungeons.
This commit is contained in:
Paramat 2019-06-01 20:50:43 +01:00 • committed by GitHub
parent a1459a9eac
commit 7379aa74cf
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 154 additions and 95 deletions
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19
src/mapgen/dungeongen.cpp
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@ -31,9 +31,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
//#define DGEN_USE_TORCHES
NoiseParams nparams_dungeon_density(0.9, 0.5, v3f(500.0, 500.0, 500.0), 0, 2, 0.8, 2.0);
NoiseParams nparams_dungeon_alt_wall(-0.4, 1.0, v3f(40.0, 40.0, 40.0), 32474, 6, 1.1, 2.0);
///////////////////////////////////////////////////////////////////////////////
@ -73,22 +70,22 @@ DungeonGen::DungeonGen(const NodeDefManager *ndef,
dp.rooms_max = 16;
dp.notifytype = GENNOTIFY_DUNGEON;
dp.np_density = nparams_dungeon_density;
dp.np_alt_wall = nparams_dungeon_alt_wall;
dp.np_alt_wall =
NoiseParams(-0.4, 1.0, v3f(40.0, 40.0, 40.0), 32474, 6, 1.1, 2.0);
}
}
void DungeonGen::generate(MMVManip *vm, u32 bseed, v3s16 nmin, v3s16 nmax)
void DungeonGen::generate(MMVManip *vm, u32 bseed, v3s16 nmin, v3s16 nmax,
u16 num_dungeons)
{
if (num_dungeons == 0)
return;
assert(vm);
//TimeTaker t("gen dungeons");
float nval_density = NoisePerlin3D(&dp.np_density, nmin.X, nmin.Y, nmin.Z, dp.seed);
if (nval_density < 1.0f)
return;
static const bool preserve_ignore = !g_settings->getBool("projecting_dungeons");
this->vm = vm;
@ -122,7 +119,7 @@ void DungeonGen::generate(MMVManip *vm, u32 bseed, v3s16 nmin, v3s16 nmax)
}
// Add them
for (u32 i = 0; i < std::floor(nval_density); i++)
for (u32 i = 0; i < num_dungeons; i++)
makeDungeon(v3s16(1, 1, 1) * MAP_BLOCKSIZE);
// Optionally convert some structure to alternative structure