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Dungeons: Add setting to prevent projecting dungeons

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Prevents dungeons generating into ignore nodes in ungenerated mapchunks,
which can occasionally result in a dungeon projecting from the terrain.
This commit is contained in:
paramat 2017-06-26 06:24:30 +01:00 • committed by paramat
parent c358004368
commit ab746b0704
4 changed files with 14 additions and 2 deletions
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8
src/dungeongen.cpp
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@ -97,6 +97,8 @@ void DungeonGen::generate(MMVManip *vm, u32 bseed, v3s16 nmin, v3s16 nmax)
if (nval_density < 1.0f)
return;
static const bool preserve_ignore = !g_settings->getBool("projecting_dungeons");
this->vm = vm;
this->blockseed = bseed;
random.seed(bseed + 2);
@ -105,14 +107,16 @@ void DungeonGen::generate(MMVManip *vm, u32 bseed, v3s16 nmin, v3s16 nmax)
vm->clearFlag(VMANIP_FLAG_DUNGEON_INSIDE | VMANIP_FLAG_DUNGEON_PRESERVE);
if (dp.only_in_ground) {
// Set all air and water to be untouchable
// to make dungeons open to caves and open air
// Set all air and water to be untouchable to make dungeons open to
// caves and open air. Optionally set ignore to be untouchable to
// prevent protruding dungeons.
for (s16 z = nmin.Z; z <= nmax.Z; z++) {
for (s16 y = nmin.Y; y <= nmax.Y; y++) {
u32 i = vm->m_area.index(nmin.X, y, z);
for (s16 x = nmin.X; x <= nmax.X; x++) {
content_t c = vm->m_data[i].getContent();
if (c == CONTENT_AIR || c == dp.c_water ||
(preserve_ignore && c == CONTENT_IGNORE) ||
c == dp.c_river_water)
vm->m_flags[i] |= VMANIP_FLAG_DUNGEON_PRESERVE;
i++;