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Re-add dungeons in new dungeongen.cpp

experimental
kwolekr 2013-03-09 21:28:19 -05:00
parent aa77ee66c5
commit 650e932ddf
7 changed files with 774 additions and 553 deletions
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1
src/CMakeLists.txt
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@ -226,6 +226,7 @@ set(common_SRCS
mapgen.cpp
mapgen_v6.cpp
treegen.cpp
dungeongen.cpp
content_nodemeta.cpp
content_mapnode.cpp
collision.cpp

634
src/dungeongen.cpp Normal file
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@ -0,0 +1,634 @@
/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "dungeongen.h"
#include "mapgen.h"
#include "voxel.h"
#include "noise.h"
#include "mapblock.h"
#include "mapnode.h"
#include "map.h"
#include "nodedef.h"
#include "profiler.h"
#include "settings.h" // For g_settings
#include "main.h" // For g_profiler
NoiseParams nparams_dungeon_rarity =
{0.0, 1.0, v3f(500.0, 500.0, 500.0), 0, 2, 0.8};
NoiseParams nparams_dungeon_wetness =
{0.0, 1.0, v3f(40.0, 40.0, 40.0), 32474, 4, 1.1};
NoiseParams nparams_dungeon_density =
{0.0, 1.0, v3f(2.5, 2.5, 2.5), 0, 2, 1.4};
///////////////////////////////////////////////////////////////////////////////
DungeonGen::DungeonGen(INodeDefManager *ndef, u64 seed, s16 waterlevel) {
this->ndef = ndef;
this->mapseed = seed;
this->water_level = waterlevel;
np_rarity = &nparams_dungeon_rarity;
np_wetness = &nparams_dungeon_wetness;
np_density = &nparams_dungeon_density;
/*
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");
*/
}
void DungeonGen::generate(ManualMapVoxelManipulator *vm, u32 bseed,
v3s16 nmin, v3s16 nmax) {
//TimeTaker t("gen dungeons");
int approx_groundlevel = 10 + water_level;
if ((nmin.Y + nmax.Y) / 2 >= approx_groundlevel ||
NoisePerlin3D(np_rarity, nmin.X, nmin.Y, nmin.Z, mapseed) < 0.2)
return;
this->vmanip = vm;
this->blockseed = bseed;
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("stairs:stair_cobble");
// Dungeon generator doesn't modify places which have this set
vmanip->clearFlag(VMANIP_FLAG_DUNGEON_INSIDE | VMANIP_FLAG_DUNGEON_PRESERVE);
// Set all air and water to be untouchable to make dungeons open
// to caves and open air
for (s16 z = nmin.Z; z <= nmax.Z; z++) {
for (s16 y = nmin.Y; y <= nmax.Y; y++) {
u32 i = vmanip->m_area.index(nmin.X, y, z);
for (s16 x = nmin.X; x <= nmax.X; x++) {
content_t c = vmanip->m_data[i].getContent();
if (c == CONTENT_AIR || c == cid_water_source)
vmanip->m_flags[i] |= VMANIP_FLAG_DUNGEON_PRESERVE;
i++;
}
}
}
// Add it
makeDungeon(v3s16(1,1,1) * MAP_BLOCKSIZE);
// Convert some cobble to mossy cobble
for (s16 z = nmin.Z; z <= nmax.Z; z++) {
for (s16 y = nmin.Y; y <= nmax.Y; y++) {
u32 i = vmanip->m_area.index(nmin.X, y, z);
for (s16 x = nmin.X; x <= nmax.X; x++) {
if (vmanip->m_data[i].getContent() == cid_cobble) {
float wetness = NoisePerlin3D(np_wetness, x, y, z, mapseed);
float density = NoisePerlin3D(np_density, x, y, z, blockseed);
if (density < wetness / 3.0)
vmanip->m_data[i].setContent(cid_mossycobble);
}
i++;
}
}
}
//printf("== gen dungeons: %dms\n", t.stop());
}
void DungeonGen::makeDungeon(v3s16 start_padding)
{
v3s16 areasize = vmanip->m_area.getExtent();
v3s16 roomsize;
v3s16 roomplace;
/*
Find place for first room
*/
bool fits = false;
for (u32 i = 0; i < 100; i++)
{
bool is_large_room = ((random.next() & 3) == 1);
roomsize = is_large_room ?
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));
// start_padding is used to disallow starting the generation of
// a dungeon in a neighboring generation chunk
roomplace = vmanip->m_area.MinEdge + start_padding + v3s16(
random.range(0,areasize.X-roomsize.X-1-start_padding.X),
random.range(0,areasize.Y-roomsize.Y-1-start_padding.Y),
random.range(0,areasize.Z-roomsize.Z-1-start_padding.Z));
/*
Check that we're not putting the room to an unknown place,
otherwise it might end up floating in the air
*/
fits = true;
for (s16 z = 1; z < roomsize.Z - 1; z++)
for (s16 y = 1; y < roomsize.Y - 1; y++)
for (s16 x = 1; x < roomsize.X - 1; x++)
{
v3s16 p = roomplace + v3s16(x, y, z);
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & VMANIP_FLAG_DUNGEON_INSIDE)
{
fits = false;
break;
}
if (vmanip->m_data[vi].getContent() == CONTENT_IGNORE)
{
fits = false;
break;
}
}
if (fits)
break;
}
// No place found
if (fits == false)
return;
/*
Stores the center position of the last room made, so that
a new corridor can be started from the last room instead of
the new room, if chosen so.
*/
v3s16 last_room_center = roomplace + v3s16(roomsize.X / 2, 1, roomsize.Z / 2);
u32 room_count = random.range(2, 16);
for (u32 i = 0; i < room_count; i++)
{
// Make a room to the determined place
makeRoom(roomsize, roomplace);
v3s16 room_center = roomplace + v3s16(roomsize.X / 2, 1, roomsize.Z / 2);
// Place torch at room center (for testing)
//vmanip->m_data[vmanip->m_area.index(room_center)] = MapNode(cid_torch);
// Quit if last room
if (i == room_count - 1)
break;
// Determine walker start position
bool start_in_last_room = (random.range(0, 2) != 0);
v3s16 walker_start_place;
if(start_in_last_room)
{
walker_start_place = last_room_center;
}
else
{
walker_start_place = room_center;
// Store center of current room as the last one
last_room_center = room_center;
}
// Create walker and find a place for a door
v3s16 doorplace;
v3s16 doordir;
m_pos = walker_start_place;
bool r = findPlaceForDoor(doorplace, doordir);
if (r == false)
return;
if (random.range(0,1) == 0)
// Make the door
makeDoor(doorplace, doordir);
else
// Don't actually make a door
doorplace -= doordir;
// Make a random corridor starting from the door
v3s16 corridor_end;
v3s16 corridor_end_dir;
makeCorridor(doorplace, doordir, corridor_end, corridor_end_dir);
// Find a place for a random sized room
roomsize = v3s16(random.range(4,8),random.range(4,6),random.range(4,8));
m_pos = corridor_end;
m_dir = corridor_end_dir;
r = findPlaceForRoomDoor(roomsize, doorplace, doordir, roomplace);
if (r == false)
return;
if (random.range(0,1) == 0)
// Make the door
makeDoor(doorplace, doordir);
else
// Don't actually make a door
roomplace -= doordir;
}
}
void DungeonGen::makeRoom(v3s16 roomsize, v3s16 roomplace)
{
MapNode n_cobble(cid_cobble);
MapNode n_air(CONTENT_AIR);
// Make +-X walls
for (s16 z = 0; z < roomsize.Z; z++)
for (s16 y = 0; y < roomsize.Y; y++)
{
{
v3s16 p = roomplace + v3s16(0, y, z);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip->m_data[vi] = n_cobble;
}
{
v3s16 p = roomplace + v3s16(roomsize.X - 1, y, z);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip->m_data[vi] = n_cobble;
}
}
// Make +-Z walls
for (s16 x = 0; x < roomsize.X; x++)
for (s16 y = 0; y < roomsize.Y; y++)
{
{
v3s16 p = roomplace + v3s16(x, y, 0);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip->m_data[vi] = n_cobble;
}
{
v3s16 p = roomplace + v3s16(x, y, roomsize.Z - 1);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip->m_data[vi] = n_cobble;
}
}
// Make +-Y walls (floor and ceiling)
for (s16 z = 0; z < roomsize.Z; z++)
for (s16 x = 0; x < roomsize.X; x++)
{
{
v3s16 p = roomplace + v3s16(x, 0, z);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip->m_data[vi] = n_cobble;
}
{
v3s16 p = roomplace + v3s16(x,roomsize. Y - 1, z);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip->m_data[vi] = n_cobble;
}
}
// Fill with air
for (s16 z = 1; z < roomsize.Z - 1; z++)
for (s16 y = 1; y < roomsize.Y - 1; y++)
for (s16 x = 1; x < roomsize.X - 1; x++)
{
v3s16 p = roomplace + v3s16(x, y, z);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
vmanip->m_flags[vi] |= VMANIP_FLAG_DUNGEON_UNTOUCHABLE;
vmanip->m_data[vi] = n_air;
}
}
void DungeonGen::makeFill(v3s16 place, v3s16 size,
u8 avoid_flags, MapNode n, u8 or_flags)
{
for (s16 z = 0; z < size.Z; z++)
for (s16 y = 0; y < size.Y; y++)
for (s16 x = 0; x < size.X; x++)
{
v3s16 p = place + v3s16(x, y, z);
if (vmanip->m_area.contains(p) == false)
continue;
u32 vi = vmanip->m_area.index(p);
if (vmanip->m_flags[vi] & avoid_flags)
continue;
vmanip->m_flags[vi] |= or_flags;
vmanip->m_data[vi] = n;
}
}
void DungeonGen::makeHole(v3s16 place)
{
makeFill(place, v3s16(1, 2, 1), 0, MapNode(CONTENT_AIR),
VMANIP_FLAG_DUNGEON_INSIDE);
}
void DungeonGen::makeDoor(v3s16 doorplace, v3s16 doordir)
{
makeHole(doorplace);
// Place torch (for testing)
//vmanip->m_data[vmanip->m_area.index(doorplace)] = MapNode(cid_torch);
}
void DungeonGen::makeCorridor(v3s16 doorplace,
v3s16 doordir, v3s16 &result_place, v3s16 &result_dir)
{
makeHole(doorplace);
v3s16 p0 = doorplace;
v3s16 dir = doordir;
u32 length;
/*if (random.next() % 2)
length = random.range(1, 13);
else
length = random.range(1, 6);*/
length = random.range(1, 13);
u32 partlength = random.range(1, 13);
u32 partcount = 0;
s16 make_stairs = 0;
if (random.next() % 2 == 0 && partlength >= 3)
make_stairs = random.next() % 2 ? 1 : -1;
for (u32 i = 0; i < length; i++) {
v3s16 p = p0 + dir;
if (partcount != 0)
p.Y += make_stairs;
if (vmanip->m_area.contains(p) == true &&
vmanip->m_area.contains(p + v3s16(0, 1, 0)) == true) {
if (make_stairs) {
makeFill(p + v3s16(-1, -1, -1), v3s16(3, 5, 3),
VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(cid_cobble), 0);
makeHole(p);
makeHole(p - dir);
// TODO: fix stairs code so it works 100% (quite difficult)
// exclude stairs from the bottom step
if (((make_stairs == 1) && i != 0) ||
((make_stairs == -1) && i != length - 1)) {
// rotate face 180 deg if making stairs backwards
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);
if (vmanip->m_data[vi].getContent() == cid_cobble)
vmanip->m_data[vi] = MapNode(cid_cobblestair, 0, facedir);
vi = vmanip->m_area.index(p.X, p.Y, p.Z);
if (vmanip->m_data[vi].getContent() == cid_cobble)
vmanip->m_data[vi] = MapNode(cid_cobblestair, 0, facedir);
}
} else {
makeFill(p + v3s16(-1, -1, -1), v3s16(3, 4, 3),
VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(cid_cobble), 0);
makeHole(p);
}
p0 = p;
} else {
// Can't go here, turn away
dir = turn_xz(dir, random.range(0, 1));
make_stairs = -make_stairs;
partcount = 0;
partlength = random.range(1, length);
continue;
}
partcount++;
if (partcount >= partlength) {
partcount = 0;
dir = random_turn(random, dir);
partlength = random.range(1,length);
make_stairs = 0;
if (random.next() % 2 == 0 && partlength >= 3)
make_stairs = random.next() % 2 ? 1 : -1;
}
}
result_place = p0;
result_dir = dir;
}
bool DungeonGen::findPlaceForDoor(v3s16 &result_place, v3s16 &result_dir)
{
for (u32 i = 0; i < 100; i++)
{
v3s16 p = m_pos + m_dir;
v3s16 p1 = p + v3s16(0, 1, 0);
if (vmanip->m_area.contains(p) == false
|| vmanip->m_area.contains(p1) == false
|| i % 4 == 0)
{
randomizeDir();
continue;
}
if (vmanip->getNodeNoExNoEmerge(p).getContent() == cid_cobble
&& vmanip->getNodeNoExNoEmerge(p1).getContent() == cid_cobble)
{
// Found wall, this is a good place!
result_place = p;
result_dir = m_dir;
// Randomize next direction
randomizeDir();
return true;
}
/*
Determine where to move next
*/
// Jump one up if the actual space is there
if (vmanip->getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent() == cid_cobble
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent() == CONTENT_AIR
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,2,0)).getContent() == CONTENT_AIR)
p += v3s16(0,1,0);
// Jump one down if the actual space is there
if (vmanip->getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent() == cid_cobble
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent() == CONTENT_AIR
&& vmanip->getNodeNoExNoEmerge(p+v3s16(0,-1,0)).getContent() == CONTENT_AIR)
p += v3s16(0,-1,0);
// Check if walking is now possible
if (vmanip->getNodeNoExNoEmerge(p).getContent() != CONTENT_AIR
|| vmanip->getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent() != CONTENT_AIR)
{
// Cannot continue walking here
randomizeDir();
continue;
}
// Move there
m_pos = p;
}
return false;
}
bool DungeonGen::findPlaceForRoomDoor(v3s16 roomsize, v3s16 &result_doorplace,
v3s16 &result_doordir, v3s16 &result_roomplace)
{
for (s16 trycount = 0; trycount < 30; trycount++)
{
v3s16 doorplace;
v3s16 doordir;
bool r = findPlaceForDoor(doorplace, doordir);
if (r == false)
continue;
v3s16 roomplace;
// X east, Z north, Y up
#if 1
if (doordir == v3s16(1, 0, 0)) // X+
roomplace = doorplace +
v3s16(0, -1, random.range(-roomsize.Z + 2, -2));
if (doordir == v3s16(-1, 0, 0)) // X-
roomplace = doorplace +
v3s16(-roomsize.X + 1, -1, random.range(-roomsize.Z + 2, -2));
if (doordir == v3s16(0, 0, 1)) // Z+
roomplace = doorplace +
v3s16(random.range(-roomsize.X + 2, -2), -1, 0);
if (doordir == v3s16(0, 0, -1)) // Z-
roomplace = doorplace +
v3s16(random.range(-roomsize.X + 2, -2), -1, -roomsize.Z + 1);
#endif
#if 0
if (doordir == v3s16(1, 0, 0)) // X+
roomplace = doorplace + v3s16(0, -1, -roomsize.Z / 2);
if (doordir == v3s16(-1, 0, 0)) // X-
roomplace = doorplace + v3s16(-roomsize.X+1,-1,-roomsize.Z / 2);
if (doordir == v3s16(0, 0, 1)) // Z+
roomplace = doorplace + v3s16(-roomsize.X / 2, -1, 0);
if (doordir == v3s16(0, 0, -1)) // Z-
roomplace = doorplace + v3s16(-roomsize.X / 2, -1, -roomsize.Z + 1);
#endif
// Check fit
bool fits = true;
for (s16 z = 1; z < roomsize.Z - 1; z++)
for (s16 y = 1; y < roomsize.Y - 1; y++)
for (s16 x = 1; x < roomsize.X - 1; x++)
{
v3s16 p = roomplace + v3s16(x, y, z);
if (vmanip->m_area.contains(p) == false)
{
fits = false;
break;
}
if (vmanip->m_flags[vmanip->m_area.index(p)]
& VMANIP_FLAG_DUNGEON_INSIDE)
{
fits = false;
break;
}
}
if(fits == false)
{
// Find new place
continue;
}
result_doorplace = doorplace;
result_doordir = doordir;
result_roomplace = roomplace;
return true;
}
return false;
}
v3s16 rand_ortho_dir(PseudoRandom &random)
{
if (random.next() % 2 == 0)
return random.next() % 2 ? v3s16(-1, 0, 0) : v3s16(1, 0, 0);
else
return random.next() % 2 ? v3s16(0, 0, -1) : v3s16(0, 0, 1);
}
v3s16 turn_xz(v3s16 olddir, int t)
{
v3s16 dir;
if (t == 0)
{
// Turn right
dir.X = olddir.Z;
dir.Z = -olddir.X;
dir.Y = olddir.Y;
}
else
{
// Turn left
dir.X = -olddir.Z;
dir.Z = olddir.X;
dir.Y = olddir.Y;
}
return dir;
}
v3s16 random_turn(PseudoRandom &random, v3s16 olddir)
{
int turn = random.range(0, 2);
v3s16 dir;
if (turn == 0)
{
// Go straight
dir = olddir;
}
else if (turn == 1)
// Turn right
dir = turn_xz(olddir, 0);
else
// Turn left
dir = turn_xz(olddir, 1);
return dir;
}
int dir_to_facedir(v3s16 d) {
if (abs(d.X) > abs(d.Z))
return d.X < 0 ? 3 : 1;
else
return d.Z < 0 ? 2 : 0;
}

128
src/dungeongen.h Normal file
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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef DUNGEONGEN_HEADER
#define DUNGEONGEN_HEADER
#include "voxel.h"
#include "noise.h"
#define VMANIP_FLAG_DUNGEON_INSIDE VOXELFLAG_CHECKED1
#define VMANIP_FLAG_DUNGEON_PRESERVE VOXELFLAG_CHECKED2
#define VMANIP_FLAG_DUNGEON_UNTOUCHABLE (\
VMANIP_FLAG_DUNGEON_INSIDE|VMANIP_FLAG_DUNGEON_PRESERVE)
class ManualMapVoxelManipulator;
class INodeDefManager;
v3s16 rand_ortho_dir(PseudoRandom &random);
v3s16 turn_xz(v3s16 olddir, int t);
v3s16 random_turn(PseudoRandom &random, v3s16 olddir);
int dir_to_facedir(v3s16 d);
class DungeonGen {
public:
u32 blockseed;
u64 mapseed;
ManualMapVoxelManipulator *vmanip;
INodeDefManager *ndef;
PseudoRandom random;
v3s16 csize;
s16 water_level;
NoiseParams *np_rarity;
NoiseParams *np_wetness;
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
v3s16 m_pos;
v3s16 m_dir;
DungeonGen(INodeDefManager *ndef, u64 seed, s16 waterlevel);
void generate(ManualMapVoxelManipulator *vm, u32 bseed,
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 makeRoom(v3s16 roomsize, v3s16 roomplace);
void makeCorridor(v3s16 doorplace, v3s16 doordir,
v3s16 &result_place, v3s16 &result_dir);
void makeDoor(v3s16 doorplace, v3s16 doordir);
void makeFill(v3s16 place, v3s16 size, u8 avoid_flags, MapNode n, u8 or_flags);
void makeHole(v3s16 place);
bool findPlaceForDoor(v3s16 &result_place, v3s16 &result_dir);
bool findPlaceForRoomDoor(v3s16 roomsize, v3s16 &result_doorplace,
v3s16 &result_doordir, v3s16 &result_roomplace);
void randomizeDir()
{
m_dir = rand_ortho_dir(random);
}
};
class RoomWalker
{
public:
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

552
src/mapgen.cpp
View File

@ -243,559 +243,7 @@ static void make_cactus(VoxelManipulator &vmanip, v3s16 p0,
}
#endif
#if 0
/*
Dungeon making routines
*/
#define VMANIP_FLAG_DUNGEON_INSIDE VOXELFLAG_CHECKED1
#define VMANIP_FLAG_DUNGEON_PRESERVE VOXELFLAG_CHECKED2
#define VMANIP_FLAG_DUNGEON_UNTOUCHABLE (\
VMANIP_FLAG_DUNGEON_INSIDE|VMANIP_FLAG_DUNGEON_PRESERVE)
static void make_room1(VoxelManipulator &vmanip, v3s16 roomsize, v3s16 roomplace,
INodeDefManager *ndef)
{
// Make +-X walls
for(s16 z=0; z<roomsize.Z; z++)
for(s16 y=0; y<roomsize.Y; y++)
{
{
v3s16 p = roomplace + v3s16(0,y,z);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip.m_data[vi] = MapNode(ndef->getId("mapgen_cobble"));
}
{
v3s16 p = roomplace + v3s16(roomsize.X-1,y,z);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip.m_data[vi] = MapNode(ndef->getId("mapgen_cobble"));
}
}
// Make +-Z walls
for(s16 x=0; x<roomsize.X; x++)
for(s16 y=0; y<roomsize.Y; y++)
{
{
v3s16 p = roomplace + v3s16(x,y,0);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip.m_data[vi] = MapNode(ndef->getId("mapgen_cobble"));
}
{
v3s16 p = roomplace + v3s16(x,y,roomsize.Z-1);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip.m_data[vi] = MapNode(ndef->getId("mapgen_cobble"));
}
}
// Make +-Y walls (floor and ceiling)
for(s16 z=0; z<roomsize.Z; z++)
for(s16 x=0; x<roomsize.X; x++)
{
{
v3s16 p = roomplace + v3s16(x,0,z);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip.m_data[vi] = MapNode(ndef->getId("mapgen_cobble"));
}
{
v3s16 p = roomplace + v3s16(x,roomsize.Y-1,z);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & VMANIP_FLAG_DUNGEON_UNTOUCHABLE)
continue;
vmanip.m_data[vi] = MapNode(ndef->getId("mapgen_cobble"));
}
}
// Fill with air
for(s16 z=1; z<roomsize.Z-1; z++)
for(s16 y=1; y<roomsize.Y-1; y++)
for(s16 x=1; x<roomsize.X-1; x++)
{
v3s16 p = roomplace + v3s16(x,y,z);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
vmanip.m_flags[vi] |= VMANIP_FLAG_DUNGEON_UNTOUCHABLE;
vmanip.m_data[vi] = MapNode(CONTENT_AIR);
}
}
static void make_fill(VoxelManipulator &vmanip, v3s16 place, v3s16 size,
u8 avoid_flags, MapNode n, u8 or_flags)
{
for(s16 z=0; z<size.Z; z++)
for(s16 y=0; y<size.Y; y++)
for(s16 x=0; x<size.X; x++)
{
v3s16 p = place + v3s16(x,y,z);
if(vmanip.m_area.contains(p) == false)
continue;
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & avoid_flags)
continue;
vmanip.m_flags[vi] |= or_flags;
vmanip.m_data[vi] = n;
}
}
static void make_hole1(VoxelManipulator &vmanip, v3s16 place,
INodeDefManager *ndef)
{
make_fill(vmanip, place, v3s16(1,2,1), 0, MapNode(CONTENT_AIR),
VMANIP_FLAG_DUNGEON_INSIDE);
}
static void make_door1(VoxelManipulator &vmanip, v3s16 doorplace, v3s16 doordir,
INodeDefManager *ndef)
{
make_hole1(vmanip, doorplace, ndef);
// Place torch (for testing)
//vmanip.m_data[vmanip.m_area.index(doorplace)] = MapNode(ndef->getId("mapgen_torch"));
}
static v3s16 rand_ortho_dir(PseudoRandom &random)
{
if(random.next()%2==0)
return random.next()%2 ? v3s16(-1,0,0) : v3s16(1,0,0);
else
return random.next()%2 ? v3s16(0,0,-1) : v3s16(0,0,1);
}
static v3s16 turn_xz(v3s16 olddir, int t)
{
v3s16 dir;
if(t == 0)
{
// Turn right
dir.X = olddir.Z;
dir.Z = -olddir.X;
dir.Y = olddir.Y;
}
else
{
// Turn left
dir.X = -olddir.Z;
dir.Z = olddir.X;
dir.Y = olddir.Y;
}
return dir;
}
static v3s16 random_turn(PseudoRandom &random, v3s16 olddir)
{
int turn = random.range(0,2);
v3s16 dir;
if(turn == 0)
{
// Go straight
dir = olddir;
}
else if(turn == 1)
// Turn right
dir = turn_xz(olddir, 0);
else
// Turn left
dir = turn_xz(olddir, 1);
return dir;
}
static void make_corridor(VoxelManipulator &vmanip, v3s16 doorplace,
v3s16 doordir, v3s16 &result_place, v3s16 &result_dir,
PseudoRandom &random, INodeDefManager *ndef)
{
make_hole1(vmanip, doorplace, ndef);
v3s16 p0 = doorplace;
v3s16 dir = doordir;
u32 length;
if(random.next()%2)
length = random.range(1,13);
else
length = random.range(1,6);
length = random.range(1,13);
u32 partlength = random.range(1,13);
u32 partcount = 0;
s16 make_stairs = 0;
if(random.next()%2 == 0 && partlength >= 3)
make_stairs = random.next()%2 ? 1 : -1;
for(u32 i=0; i<length; i++)
{
v3s16 p = p0 + dir;
if(partcount != 0)
p.Y += make_stairs;
/*// If already empty
if(vmanip.getNodeNoExNoEmerge(p).getContent()
== CONTENT_AIR
&& vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
== CONTENT_AIR)
{
}*/
if(vmanip.m_area.contains(p) == true
&& vmanip.m_area.contains(p+v3s16(0,1,0)) == true)
{
if(make_stairs)
{
make_fill(vmanip, p+v3s16(-1,-1,-1), v3s16(3,5,3),
VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(ndef->getId("mapgen_cobble")), 0);
make_fill(vmanip, p, v3s16(1,2,1), 0, MapNode(CONTENT_AIR),
VMANIP_FLAG_DUNGEON_INSIDE);
make_fill(vmanip, p-dir, v3s16(1,2,1), 0, MapNode(CONTENT_AIR),
VMANIP_FLAG_DUNGEON_INSIDE);
}
else
{
make_fill(vmanip, p+v3s16(-1,-1,-1), v3s16(3,4,3),
VMANIP_FLAG_DUNGEON_UNTOUCHABLE, MapNode(ndef->getId("mapgen_cobble")), 0);
make_hole1(vmanip, p, ndef);
/*make_fill(vmanip, p, v3s16(1,2,1), 0, MapNode(CONTENT_AIR),
VMANIP_FLAG_DUNGEON_INSIDE);*/
}
p0 = p;
}
else
{
// Can't go here, turn away
dir = turn_xz(dir, random.range(0,1));
make_stairs = -make_stairs;
partcount = 0;
partlength = random.range(1,length);
continue;
}
partcount++;
if(partcount >= partlength)
{
partcount = 0;
dir = random_turn(random, dir);
partlength = random.range(1,length);
make_stairs = 0;
if(random.next()%2 == 0 && partlength >= 3)
make_stairs = random.next()%2 ? 1 : -1;
}
}
result_place = p0;
result_dir = dir;
}
class RoomWalker
{
public:
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)
{
for(u32 i=0; i<100; i++)
{
v3s16 p = m_pos + m_dir;
v3s16 p1 = p + v3s16(0,1,0);
if(vmanip.m_area.contains(p) == false
|| vmanip.m_area.contains(p1) == false
|| i % 4 == 0)
{
randomizeDir();
continue;
}
if(vmanip.getNodeNoExNoEmerge(p).getContent()
== m_ndef->getId("mapgen_cobble")
&& vmanip.getNodeNoExNoEmerge(p1).getContent()
== m_ndef->getId("mapgen_cobble"))
{
// Found wall, this is a good place!
result_place = p;
result_dir = m_dir;
// Randomize next direction
randomizeDir();
return true;
}
/*
Determine where to move next
*/
// Jump one up if the actual space is there
if(vmanip.getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent()
== m_ndef->getId("mapgen_cobble")
&& vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
== CONTENT_AIR
&& vmanip.getNodeNoExNoEmerge(p+v3s16(0,2,0)).getContent()
== CONTENT_AIR)
p += v3s16(0,1,0);
// Jump one down if the actual space is there
if(vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
== m_ndef->getId("mapgen_cobble")
&& vmanip.getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent()
== CONTENT_AIR
&& vmanip.getNodeNoExNoEmerge(p+v3s16(0,-1,0)).getContent()
== CONTENT_AIR)
p += v3s16(0,-1,0);
// Check if walking is now possible
if(vmanip.getNodeNoExNoEmerge(p).getContent()
!= CONTENT_AIR
|| vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
!= CONTENT_AIR)
{
// Cannot continue walking here
randomizeDir();
continue;
}
// Move there
m_pos = p;
}
return false;
}
bool findPlaceForRoomDoor(v3s16 roomsize, v3s16 &result_doorplace,
v3s16 &result_doordir, v3s16 &result_roomplace)
{
for(s16 trycount=0; trycount<30; trycount++)
{
v3s16 doorplace;
v3s16 doordir;
bool r = findPlaceForDoor(doorplace, doordir);
if(r == false)
continue;
v3s16 roomplace;
// X east, Z north, Y up
#if 1
if(doordir == v3s16(1,0,0)) // X+
roomplace = doorplace +
v3s16(0,-1,m_random.range(-roomsize.Z+2,-2));
if(doordir == v3s16(-1,0,0)) // X-
roomplace = doorplace +
v3s16(-roomsize.X+1,-1,m_random.range(-roomsize.Z+2,-2));
if(doordir == v3s16(0,0,1)) // Z+
roomplace = doorplace +
v3s16(m_random.range(-roomsize.X+2,-2),-1,0);
if(doordir == v3s16(0,0,-1)) // Z-
roomplace = doorplace +
v3s16(m_random.range(-roomsize.X+2,-2),-1,-roomsize.Z+1);
#endif
#if 0
if(doordir == v3s16(1,0,0)) // X+
roomplace = doorplace + v3s16(0,-1,-roomsize.Z/2);
if(doordir == v3s16(-1,0,0)) // X-
roomplace = doorplace + v3s16(-roomsize.X+1,-1,-roomsize.Z/2);
if(doordir == v3s16(0,0,1)) // Z+
roomplace = doorplace + v3s16(-roomsize.X/2,-1,0);
if(doordir == v3s16(0,0,-1)) // Z-
roomplace = doorplace + v3s16(-roomsize.X/2,-1,-roomsize.Z+1);
#endif
// Check fit
bool fits = true;
for(s16 z=1; z<roomsize.Z-1; z++)
for(s16 y=1; y<roomsize.Y-1; y++)
for(s16 x=1; x<roomsize.X-1; x++)
{
v3s16 p = roomplace + v3s16(x,y,z);
if(vmanip.m_area.contains(p) == false)
{
fits = false;
break;
}
if(vmanip.m_flags[vmanip.m_area.index(p)]
& VMANIP_FLAG_DUNGEON_INSIDE)
{
fits = false;
break;
}
}
if(fits == false)
{
// Find new place
continue;
}
result_doorplace = doorplace;
result_doordir = doordir;
result_roomplace = roomplace;
return true;
}
return false;
}
private:
VoxelManipulator &vmanip;
v3s16 m_pos;
v3s16 m_dir;
PseudoRandom &m_random;
INodeDefManager *m_ndef;
};
static void make_dungeon1(VoxelManipulator &vmanip, PseudoRandom &random,
INodeDefManager *ndef)
{
v3s16 areasize = vmanip.m_area.getExtent();
v3s16 roomsize;
v3s16 roomplace;
/*
Find place for first room
*/
bool fits = false;
for(u32 i=0; i<100; i++)
{
roomsize = v3s16(random.range(4,8),random.range(4,6),random.range(4,8));
roomplace = vmanip.m_area.MinEdge + v3s16(
random.range(0,areasize.X-roomsize.X-1),
random.range(0,areasize.Y-roomsize.Y-1),
random.range(0,areasize.Z-roomsize.Z-1));
/*
Check that we're not putting the room to an unknown place,
otherwise it might end up floating in the air
*/
fits = true;
for(s16 z=1; z<roomsize.Z-1; z++)
for(s16 y=1; y<roomsize.Y-1; y++)
for(s16 x=1; x<roomsize.X-1; x++)
{
v3s16 p = roomplace + v3s16(x,y,z);
u32 vi = vmanip.m_area.index(p);
if(vmanip.m_flags[vi] & VMANIP_FLAG_DUNGEON_INSIDE)
{
fits = false;
break;
}
if(vmanip.m_data[vi].getContent() == CONTENT_IGNORE)
{
fits = false;
break;
}
}
if(fits)
break;
}
// No place found
if(fits == false)
return;
/*
Stores the center position of the last room made, so that
a new corridor can be started from the last room instead of
the new room, if chosen so.
*/
v3s16 last_room_center = roomplace+v3s16(roomsize.X/2,1,roomsize.Z/2);
u32 room_count = random.range(2,7);
for(u32 i=0; i<room_count; i++)
{
// Make a room to the determined place
make_room1(vmanip, roomsize, roomplace, ndef);
v3s16 room_center = roomplace + v3s16(roomsize.X/2,1,roomsize.Z/2);
// Place torch at room center (for testing)
//vmanip.m_data[vmanip.m_area.index(room_center)] = MapNode(ndef->getId("mapgen_torch"));
// Quit if last room
if(i == room_count-1)
break;
// Determine walker start position
bool start_in_last_room = (random.range(0,2)!=0);
//bool start_in_last_room = true;
v3s16 walker_start_place;
if(start_in_last_room)
{
walker_start_place = last_room_center;
}
else
{
walker_start_place = room_center;
// Store center of current room as the last one
last_room_center = room_center;
}
// Create walker and find a place for a door
RoomWalker walker(vmanip, walker_start_place, random, ndef);
v3s16 doorplace;
v3s16 doordir;
bool r = walker.findPlaceForDoor(doorplace, doordir);
if(r == false)
return;
if(random.range(0,1)==0)
// Make the door
make_door1(vmanip, doorplace, doordir, ndef);
else
// Don't actually make a door
doorplace -= doordir;
// Make a random corridor starting from the door
v3s16 corridor_end;
v3s16 corridor_end_dir;
make_corridor(vmanip, doorplace, doordir, corridor_end,
corridor_end_dir, random, ndef);
// Find a place for a random sized room
roomsize = v3s16(random.range(4,8),random.range(4,6),random.range(4,8));
walker.setPos(corridor_end);
walker.setDir(corridor_end_dir);
r = walker.findPlaceForRoomDoor(roomsize, doorplace, doordir, roomplace);
if(r == false)
return;
if(random.range(0,1)==0)
// Make the door
make_door1(vmanip, doorplace, doordir, ndef);
else
// Don't actually make a door
roomplace -= doordir;
}
}
#endif
#if 0
static void make_nc(VoxelManipulator &vmanip, PseudoRandom &random,

9
src/mapgen_v6.cpp
View File

@ -32,6 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "settings.h" // For g_settings
#include "main.h" // For g_profiler
#include "emerge.h"
#include "dungeongen.h"
#include "mapgen_v6.h"
/////////////////// Mapgen V6 perlin noise default values
@ -1241,6 +1242,14 @@ void MapgenV6::makeChunk(BlockMakeData *data)
END OF AGING LOOP
************************/
/*
Add dungeons
*/
if (flags & MG_DUNGEONS) {
DungeonGen dgen(ndef, data->seed, water_level);
dgen.generate(&vmanip, blockseed, full_node_min, full_node_max);
}
/*
Add top and bottom side of water to transforming_liquid queue
*/

1
src/mapgen_v6.h
View File

@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#ifndef MAPGENV6_HEADER
#define MAPGENV6_HEADER
#include "dungeongen.h"
#include "mapgen.h"
#define AVERAGE_MUD_AMOUNT 4

2
src/noise.h
View File

@ -157,7 +157,7 @@ inline float easeCurve(float t) {
(s) + (np)->seed, (np)->octaves, (np)->persist))
#define NoisePerlin3D(np, x, y, z, s) ((np)->offset + (np)->scale * \
noise2d_perlin((float)(x) / (np)->spread.X, (float)(y) / (np)->spread.Y, \
noise3d_perlin((float)(x) / (np)->spread.X, (float)(y) / (np)->spread.Y, \
(float)(z) / (np)->spread.Z, (s) + (np)->seed, (np)->octaves, (np)->persist))
#endif