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Dungeongen: Create dungeon gen tuneables; add desert temples for Mapgen V6

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This commit is contained in:
kwolekr 2013-12-07 22:45:21 -05:00
parent a0dce51af6
commit bbae8eb751
5 changed files with 158 additions and 110 deletions
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121
src/dungeongen.cpp
View File

@ -29,6 +29,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "settings.h" // For g_settings #include "settings.h" // For g_settings
#include "main.h" // For g_profiler #include "main.h" // For g_profiler
//#define DGEN_USE_TORCHES
NoiseParams nparams_dungeon_rarity = NoiseParams nparams_dungeon_rarity =
{0.0, 1.0, v3f(500.0, 500.0, 500.0), 0, 2, 0.8}; {0.0, 1.0, v3f(500.0, 500.0, 500.0), 0, 2, 0.8};
NoiseParams nparams_dungeon_wetness = NoiseParams nparams_dungeon_wetness =
@ -40,20 +42,33 @@ NoiseParams nparams_dungeon_density =
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
DungeonGen::DungeonGen(INodeDefManager *ndef, u64 seed, s16 waterlevel) { DungeonGen::DungeonGen(INodeDefManager *ndef, u64 seed, s16 waterlevel,
DungeonParams *dparams) {
this->ndef = ndef; this->ndef = ndef;
this->mapseed = seed; this->mapseed = seed;
this->water_level = waterlevel; this->water_level = waterlevel;
np_rarity = &nparams_dungeon_rarity; #ifdef DGEN_USE_TORCHES
np_wetness = &nparams_dungeon_wetness; c_torch = ndef->getId("default:torch");
np_density = &nparams_dungeon_density; #endif
/*
cid_water_source = ndef->getId("mapgen_water_source"); if (dparams) {
cid_cobble = ndef->getId("mapgen_cobble"); memcpy(&dp, dparams, sizeof(dp));
cid_mossycobble = ndef->getId("mapgen_mossycobble"); } else {
cid_torch = ndef->getId("default:torch"); dp.c_water = ndef->getId("mapgen_water_source");
*/ dp.c_cobble = ndef->getId("mapgen_cobble");
dp.c_moss = ndef->getId("mapgen_mossycobble");
dp.c_stair = ndef->getId("mapgen_stair_cobble");
dp.diagonal_dirs = false;
dp.mossratio = 3.0;
dp.holesize = v3s16(1, 2, 1);
dp.roomsize = v3s16(0,0,0);
dp.np_rarity = nparams_dungeon_rarity;
dp.np_wetness = nparams_dungeon_wetness;
dp.np_density = nparams_dungeon_density;
}
} }
@ -63,19 +78,13 @@ void DungeonGen::generate(ManualMapVoxelManipulator *vm, u32 bseed,
int approx_groundlevel = 10 + water_level; int approx_groundlevel = 10 + water_level;
if ((nmin.Y + nmax.Y) / 2 >= approx_groundlevel || if ((nmin.Y + nmax.Y) / 2 >= approx_groundlevel ||
NoisePerlin3D(np_rarity, nmin.X, nmin.Y, nmin.Z, mapseed) < 0.2) NoisePerlin3D(&dp.np_rarity, nmin.X, nmin.Y, nmin.Z, mapseed) < 0.2)
return; return;
this->vmanip = vm; this->vmanip = vm;
this->blockseed = bseed; this->blockseed = bseed;
random.seed(bseed + 2); random.seed(bseed + 2);
cid_water_source = ndef->getId("mapgen_water_source");
cid_cobble = ndef->getId("mapgen_cobble");
cid_mossycobble = ndef->getId("mapgen_mossycobble");
//cid_torch = ndef->getId("default:torch");
cid_cobblestair = ndef->getId("mapgen_stair_cobble");
// Dungeon generator doesn't modify places which have this set // Dungeon generator doesn't modify places which have this set
vmanip->clearFlag(VMANIP_FLAG_DUNGEON_INSIDE | VMANIP_FLAG_DUNGEON_PRESERVE); vmanip->clearFlag(VMANIP_FLAG_DUNGEON_INSIDE | VMANIP_FLAG_DUNGEON_PRESERVE);
@ -86,7 +95,7 @@ void DungeonGen::generate(ManualMapVoxelManipulator *vm, u32 bseed,
u32 i = vmanip->m_area.index(nmin.X, y, z); u32 i = vmanip->m_area.index(nmin.X, y, z);
for (s16 x = nmin.X; x <= nmax.X; x++) { for (s16 x = nmin.X; x <= nmax.X; x++) {
content_t c = vmanip->m_data[i].getContent(); content_t c = vmanip->m_data[i].getContent();
if (c == CONTENT_AIR || c == cid_water_source) if (c == CONTENT_AIR || c == dp.c_water)
vmanip->m_flags[i] |= VMANIP_FLAG_DUNGEON_PRESERVE; vmanip->m_flags[i] |= VMANIP_FLAG_DUNGEON_PRESERVE;
i++; i++;
} }
@ -97,15 +106,16 @@ void DungeonGen::generate(ManualMapVoxelManipulator *vm, u32 bseed,
makeDungeon(v3s16(1,1,1) * MAP_BLOCKSIZE); makeDungeon(v3s16(1,1,1) * MAP_BLOCKSIZE);
// Convert some cobble to mossy cobble // Convert some cobble to mossy cobble
for (s16 z = nmin.Z; z <= nmax.Z; z++) { if (dp.mossratio != 0.0) {
for (s16 z = nmin.Z; z <= nmax.Z; z++)
for (s16 y = nmin.Y; y <= nmax.Y; y++) { for (s16 y = nmin.Y; y <= nmax.Y; y++) {
u32 i = vmanip->m_area.index(nmin.X, y, z); u32 i = vmanip->m_area.index(nmin.X, y, z);
for (s16 x = nmin.X; x <= nmax.X; x++) { for (s16 x = nmin.X; x <= nmax.X; x++) {
if (vmanip->m_data[i].getContent() == cid_cobble) { if (vmanip->m_data[i].getContent() == dp.c_cobble) {
float wetness = NoisePerlin3D(np_wetness, x, y, z, mapseed); float wetness = NoisePerlin3D(&dp.np_wetness, x, y, z, mapseed);
float density = NoisePerlin3D(np_density, x, y, z, blockseed); float density = NoisePerlin3D(&dp.np_density, x, y, z, blockseed);
if (density < wetness / 3.0) if (density < wetness / dp.mossratio)
vmanip->m_data[i].setContent(cid_mossycobble); vmanip->m_data[i].setContent(dp.c_moss);
} }
i++; i++;
} }
@ -132,6 +142,7 @@ void DungeonGen::makeDungeon(v3s16 start_padding)
roomsize = is_large_room ? roomsize = is_large_room ?
v3s16(random.range(8, 16),random.range(8, 16),random.range(8, 16)) : v3s16(random.range(8, 16),random.range(8, 16),random.range(8, 16)) :
v3s16(random.range(4, 8),random.range(4, 6),random.range(4, 8)); v3s16(random.range(4, 8),random.range(4, 6),random.range(4, 8));
roomsize += dp.roomsize;
// start_padding is used to disallow starting the generation of // start_padding is used to disallow starting the generation of
// a dungeon in a neighboring generation chunk // a dungeon in a neighboring generation chunk
@ -184,8 +195,10 @@ void DungeonGen::makeDungeon(v3s16 start_padding)
v3s16 room_center = roomplace + v3s16(roomsize.X / 2, 1, roomsize.Z / 2); v3s16 room_center = roomplace + v3s16(roomsize.X / 2, 1, roomsize.Z / 2);
#ifdef DGEN_USE_TORCHES
// Place torch at room center (for testing) // Place torch at room center (for testing)
//vmanip->m_data[vmanip->m_area.index(room_center)] = MapNode(cid_torch); vmanip->m_data[vmanip->m_area.index(room_center)] = MapNode(c_torch);
#endif
// Quit if last room // Quit if last room
if (i == room_count - 1) if (i == room_count - 1)
@ -231,6 +244,8 @@ void DungeonGen::makeDungeon(v3s16 start_padding)
// Find a place for a random sized room // Find a place for a random sized room
roomsize = v3s16(random.range(4,8),random.range(4,6),random.range(4,8)); roomsize = v3s16(random.range(4,8),random.range(4,6),random.range(4,8));
roomsize += dp.roomsize;
m_pos = corridor_end; m_pos = corridor_end;
m_dir = corridor_end_dir; m_dir = corridor_end_dir;
r = findPlaceForRoomDoor(roomsize, doorplace, doordir, roomplace); r = findPlaceForRoomDoor(roomsize, doorplace, doordir, roomplace);
@ -250,7 +265,7 @@ void DungeonGen::makeDungeon(v3s16 start_padding)
void DungeonGen::makeRoom(v3s16 roomsize, v3s16 roomplace) void DungeonGen::makeRoom(v3s16 roomsize, v3s16 roomplace)
{ {
MapNode n_cobble(cid_cobble); MapNode n_cobble(dp.c_cobble);
MapNode n_air(CONTENT_AIR); MapNode n_air(CONTENT_AIR);
// Make +-X walls // Make +-X walls
@ -361,16 +376,19 @@ void DungeonGen::makeFill(v3s16 place, v3s16 size,
void DungeonGen::makeHole(v3s16 place) void DungeonGen::makeHole(v3s16 place)
{ {
makeFill(place, v3s16(1, 2, 1), 0, MapNode(CONTENT_AIR), makeFill(place, dp.holesize, 0,
VMANIP_FLAG_DUNGEON_INSIDE); MapNode(CONTENT_AIR), VMANIP_FLAG_DUNGEON_INSIDE);
} }
void DungeonGen::makeDoor(v3s16 doorplace, v3s16 doordir) void DungeonGen::makeDoor(v3s16 doorplace, v3s16 doordir)
{ {
makeHole(doorplace); makeHole(doorplace);
#ifdef DGEN_USE_TORCHES
// Place torch (for testing) // Place torch (for testing)
//vmanip->m_data[vmanip->m_area.index(doorplace)] = MapNode(cid_torch); vmanip->m_data[vmanip->m_area.index(doorplace)] = MapNode(c_torch);
#endif
} }
@ -401,30 +419,32 @@ void DungeonGen::makeCorridor(v3s16 doorplace,
if (vmanip->m_area.contains(p) == true && if (vmanip->m_area.contains(p) == true &&
vmanip->m_area.contains(p + v3s16(0, 1, 0)) == true) { vmanip->m_area.contains(p + v3s16(0, 1, 0)) == true) {
if (make_stairs) { if (make_stairs) {
makeFill(p + v3s16(-1, -1, -1), v3s16(3, 5, 3), makeFill(p + v3s16(-1, -1, -1), dp.holesize + v3s16(2, 3, 2),
VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(cid_cobble), 0); VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(dp.c_cobble), 0);
makeHole(p); makeHole(p);
makeHole(p - dir); makeHole(p - dir);
// TODO: fix stairs code so it works 100% (quite difficult) // TODO: fix stairs code so it works 100% (quite difficult)
// exclude stairs from the bottom step // exclude stairs from the bottom step
if (((make_stairs == 1) && i != 0) || // exclude stairs from diagonal steps
((make_stairs == -1) && i != length - 1)) { if (((dir.X ^ dir.Z) & 1) &&
(((make_stairs == 1) && i != 0) ||
((make_stairs == -1) && i != length - 1))) {
// rotate face 180 deg if making stairs backwards // rotate face 180 deg if making stairs backwards
int facedir = dir_to_facedir(dir * make_stairs); int facedir = dir_to_facedir(dir * make_stairs);
u32 vi = vmanip->m_area.index(p.X - dir.X, p.Y - 1, p.Z - dir.Z); u32 vi = vmanip->m_area.index(p.X - dir.X, p.Y - 1, p.Z - dir.Z);
if (vmanip->m_data[vi].getContent() == cid_cobble) if (vmanip->m_data[vi].getContent() == dp.c_cobble)
vmanip->m_data[vi] = MapNode(cid_cobblestair, 0, facedir); vmanip->m_data[vi] = MapNode(dp.c_stair, 0, facedir);
vi = vmanip->m_area.index(p.X, p.Y, p.Z); vi = vmanip->m_area.index(p.X, p.Y, p.Z);
if (vmanip->m_data[vi].getContent() == cid_cobble) if (vmanip->m_data[vi].getContent() == dp.c_cobble)
vmanip->m_data[vi] = MapNode(cid_cobblestair, 0, facedir); vmanip->m_data[vi] = MapNode(dp.c_stair, 0, facedir);
} }
} else { } else {
makeFill(p + v3s16(-1, -1, -1), v3s16(3, 4, 3), makeFill(p + v3s16(-1, -1, -1), dp.holesize + v3s16(2, 2, 2),
VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(cid_cobble), 0); VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(dp.c_cobble), 0);
makeHole(p); makeHole(p);
} }
@ -469,8 +489,8 @@ bool DungeonGen::findPlaceForDoor(v3s16 &result_place, v3s16 &result_dir)
randomizeDir(); randomizeDir();
continue; continue;
} }
if (vmanip->getNodeNoExNoEmerge(p).getContent() == cid_cobble if (vmanip->getNodeNoExNoEmerge(p).getContent() == dp.c_cobble
&& vmanip->getNodeNoExNoEmerge(p1).getContent() == cid_cobble) && vmanip->getNodeNoExNoEmerge(p1).getContent() == dp.c_cobble)
{ {
// Found wall, this is a good place! // Found wall, this is a good place!
result_place = p; result_place = p;
@ -483,12 +503,12 @@ bool DungeonGen::findPlaceForDoor(v3s16 &result_place, v3s16 &result_dir)
Determine where to move next Determine where to move next
*/ */
// Jump one up if the actual space is there // Jump one up if the actual space is there
if (vmanip->getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent() == cid_cobble if (vmanip->getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent() == dp.c_cobble
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent() == CONTENT_AIR && vmanip->getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent() == CONTENT_AIR
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,2,0)).getContent() == CONTENT_AIR) && vmanip->getNodeNoExNoEmerge(p+v3s16(0,2,0)).getContent() == CONTENT_AIR)
p += v3s16(0,1,0); p += v3s16(0,1,0);
// Jump one down if the actual space is there // Jump one down if the actual space is there
if (vmanip->getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent() == cid_cobble if (vmanip->getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent() == dp.c_cobble
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent() == CONTENT_AIR && vmanip->getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent() == CONTENT_AIR
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,-1,0)).getContent() == CONTENT_AIR) && vmanip->getNodeNoExNoEmerge(p+v3s16(0,-1,0)).getContent() == CONTENT_AIR)
p += v3s16(0,-1,0); p += v3s16(0,-1,0);
@ -577,12 +597,25 @@ bool DungeonGen::findPlaceForRoomDoor(v3s16 roomsize, v3s16 &result_doorplace,
} }
v3s16 rand_ortho_dir(PseudoRandom &random) v3s16 rand_ortho_dir(PseudoRandom &random, bool diagonal_dirs)
{ {
// Make diagonal directions somewhat rare
if (diagonal_dirs && (random.next() % 4 == 0)) {
v3s16 dir;
int trycount = 0;
do {
trycount++;
dir = v3s16(random.next() % 3 - 1, 0, random.next() % 3 - 1);
} while ((dir.X == 0 && dir.Z == 0) && trycount < 10);
return dir;
} else {
if (random.next() % 2 == 0) if (random.next() % 2 == 0)
return random.next() % 2 ? v3s16(-1, 0, 0) : v3s16(1, 0, 0); return random.next() % 2 ? v3s16(-1, 0, 0) : v3s16(1, 0, 0);
else else
return random.next() % 2 ? v3s16(0, 0, -1) : v3s16(0, 0, 1); return random.next() % 2 ? v3s16(0, 0, -1) : v3s16(0, 0, 1);
}
} }

80
src/dungeongen.h
View File

@ -31,11 +31,29 @@ with this program; if not, write to the Free Software Foundation, Inc.,
class ManualMapVoxelManipulator; class ManualMapVoxelManipulator;
class INodeDefManager; class INodeDefManager;
v3s16 rand_ortho_dir(PseudoRandom &random);
v3s16 rand_ortho_dir(PseudoRandom &random, bool diagonal_dirs);
v3s16 turn_xz(v3s16 olddir, int t); v3s16 turn_xz(v3s16 olddir, int t);
v3s16 random_turn(PseudoRandom &random, v3s16 olddir); v3s16 random_turn(PseudoRandom &random, v3s16 olddir);
int dir_to_facedir(v3s16 d); int dir_to_facedir(v3s16 d);
struct DungeonParams {
content_t c_water;
content_t c_cobble;
content_t c_moss;
content_t c_stair;
bool diagonal_dirs;
float mossratio;
v3s16 holesize;
v3s16 roomsize;
NoiseParams np_rarity;
NoiseParams np_wetness;
NoiseParams np_density;
};
class DungeonGen { class DungeonGen {
public: public:
u32 blockseed; u32 blockseed;
@ -46,24 +64,16 @@ public:
v3s16 csize; v3s16 csize;
s16 water_level; s16 water_level;
NoiseParams *np_rarity; content_t c_torch;
NoiseParams *np_wetness; DungeonParams dp;
NoiseParams *np_density;
content_t cid_water_source;
content_t cid_cobble;
content_t cid_mossycobble;
content_t cid_torch;
content_t cid_cobblestair;
//RoomWalker //RoomWalker
v3s16 m_pos; v3s16 m_pos;
v3s16 m_dir; v3s16 m_dir;
DungeonGen(INodeDefManager *ndef, u64 seed, s16 waterlevel); DungeonGen(INodeDefManager *ndef, u64 seed, s16 waterlevel, DungeonParams *dparams);
void generate(ManualMapVoxelManipulator *vm, u32 bseed, void generate(ManualMapVoxelManipulator *vm, u32 bseed,
v3s16 full_node_min, v3s16 full_node_max); v3s16 full_node_min, v3s16 full_node_max);
//void generate(v3s16 full_node_min, v3s16 full_node_max, u32 bseed);
void makeDungeon(v3s16 start_padding); void makeDungeon(v3s16 start_padding);
void makeRoom(v3s16 roomsize, v3s16 roomplace); void makeRoom(v3s16 roomsize, v3s16 roomplace);
@ -79,50 +89,12 @@ public:
void randomizeDir() void randomizeDir()
{ {
m_dir = rand_ortho_dir(random); m_dir = rand_ortho_dir(random, dp.diagonal_dirs);
} }
}; };
class RoomWalker extern NoiseParams nparams_dungeon_rarity;
{ extern NoiseParams nparams_dungeon_wetness;
public: extern NoiseParams nparams_dungeon_density;
RoomWalker(VoxelManipulator &vmanip_, v3s16 pos, PseudoRandom &random,
INodeDefManager *ndef):
vmanip(vmanip_),
m_pos(pos),
m_random(random),
m_ndef(ndef)
{
randomizeDir();
}
void randomizeDir()
{
m_dir = rand_ortho_dir(m_random);
}
void setPos(v3s16 pos)
{
m_pos = pos;
}
void setDir(v3s16 dir)
{
m_dir = dir;
}
//bool findPlaceForDoor(v3s16 &result_place, v3s16 &result_dir);
//bool findPlaceForRoomDoor(v3s16 roomsize, v3s16 &result_doorplace,
// v3s16 &result_doordir, v3s16 &result_roomplace);
private:
VoxelManipulator &vmanip;
v3s16 m_pos;
v3s16 m_dir;
PseudoRandom &m_random;
INodeDefManager *m_ndef;
};
#endif #endif

40
src/mapgen_v6.cpp
View File

@ -393,10 +393,22 @@ void MapgenV6::makeChunk(BlockMakeData *data) {
c_cobble = ndef->getId("mapgen_cobble"); c_cobble = ndef->getId("mapgen_cobble");
c_desert_sand = ndef->getId("mapgen_desert_sand"); c_desert_sand = ndef->getId("mapgen_desert_sand");
c_desert_stone = ndef->getId("mapgen_desert_stone"); c_desert_stone = ndef->getId("mapgen_desert_stone");
c_mossycobble = ndef->getId("mapgen_mossycobble");
c_sandbrick = ndef->getId("mapgen_sandstonebrick");
c_stair_cobble = ndef->getId("mapgen_stair_cobble");
c_stair_sandstone = ndef->getId("mapgen_stair_sandstone");
if (c_desert_sand == CONTENT_IGNORE) if (c_desert_sand == CONTENT_IGNORE)
c_desert_sand = c_sand; c_desert_sand = c_sand;
if (c_desert_stone == CONTENT_IGNORE) if (c_desert_stone == CONTENT_IGNORE)
c_desert_stone = c_stone; c_desert_stone = c_stone;
if (c_mossycobble == CONTENT_IGNORE)
c_mossycobble = c_cobble;
if (c_sandbrick == CONTENT_IGNORE)
c_sandbrick = c_desert_stone;
if (c_stair_cobble == CONTENT_IGNORE)
c_stair_cobble = c_cobble;
if (c_stair_sandstone == CONTENT_IGNORE)
c_stair_sandstone = c_sandbrick;
// Maximum height of the stone surface and obstacles. // Maximum height of the stone surface and obstacles.
// This is used to guide the cave generation // This is used to guide the cave generation
@ -432,7 +444,33 @@ void MapgenV6::makeChunk(BlockMakeData *data) {
// Add dungeons // Add dungeons
if (flags & MG_DUNGEONS) { if (flags & MG_DUNGEONS) {
DungeonGen dgen(ndef, data->seed, water_level); DungeonParams dp;
dp.np_rarity = nparams_dungeon_rarity;
dp.np_density = nparams_dungeon_density;
dp.np_wetness = nparams_dungeon_wetness;
dp.c_water = c_water_source;
if (getBiome(0, v2s16(node_min.X, node_min.Z)) == BT_NORMAL) {
dp.c_cobble = c_cobble;
dp.c_moss = c_mossycobble;
dp.c_stair = c_stair_cobble;
dp.diagonal_dirs = false;
dp.mossratio = 3.0;
dp.holesize = v3s16(1, 2, 1);
dp.roomsize = v3s16(0, 0, 0);
} else {
dp.c_cobble = c_sandbrick;
dp.c_moss = c_sandbrick; // should make this 'cracked sandstone' later
dp.c_stair = c_stair_sandstone;
dp.diagonal_dirs = true;
dp.mossratio = 0.0;
dp.holesize = v3s16(2, 3, 2);
dp.roomsize = v3s16(2, 5, 2);
}
DungeonGen dgen(ndef, data->seed, water_level, &dp);
dgen.generate(vm, blockseed, full_node_min, full_node_max); dgen.generate(vm, blockseed, full_node_min, full_node_max);
} }

5
src/mapgen_v6.h
View File

@ -119,6 +119,11 @@ public:
content_t c_desert_sand; content_t c_desert_sand;
content_t c_desert_stone; content_t c_desert_stone;
content_t c_mossycobble;
content_t c_sandbrick;
content_t c_stair_cobble;
content_t c_stair_sandstone;
MapgenV6(int mapgenid, MapgenV6Params *params, EmergeManager *emerge); MapgenV6(int mapgenid, MapgenV6Params *params, EmergeManager *emerge);
~MapgenV6(); ~MapgenV6();

2
src/mapgen_v7.cpp
View File

@ -207,7 +207,7 @@ void MapgenV7::makeChunk(BlockMakeData *data) {
generateCaves(stone_surface_max_y); generateCaves(stone_surface_max_y);
if (flags & MG_DUNGEONS) { if (flags & MG_DUNGEONS) {
DungeonGen dgen(ndef, data->seed, water_level); DungeonGen dgen(ndef, data->seed, water_level, NULL);
dgen.generate(vm, blockseed, full_node_min, full_node_max); dgen.generate(vm, blockseed, full_node_min, full_node_max);
} }