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Split up mapgen.cpp

pull/1756/merge
kwolekr 2014-11-01 13:16:23 -04:00
parent db25f75337
commit 9e811a92e7
20 changed files with 1178 additions and 962 deletions
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5
build/android/jni/Android.mk
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@ -102,7 +102,6 @@ LOCAL_C_INCLUDES := \
LOCAL_SRC_FILES := \
jni/src/ban.cpp \
jni/src/base64.cpp \
jni/src/biome.cpp \
jni/src/camera.cpp \
jni/src/cavegen.cpp \
jni/src/chat.cpp \
@ -165,6 +164,10 @@ LOCAL_SRC_FILES := \
jni/src/mapnode.cpp \
jni/src/mapsector.cpp \
jni/src/mesh.cpp \
jni/src/mg_biome.cpp \
jni/src/mg_decoration.cpp \
jni/src/mg_ore.cpp \
jni/src/mg_schematic.cpp \
jni/src/mods.cpp \
jni/src/nameidmapping.cpp \
jni/src/nodedef.cpp \

5
src/CMakeLists.txt
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@ -335,7 +335,6 @@ add_subdirectory(util)
set(common_SRCS
ban.cpp
base64.cpp
biome.cpp
cavegen.cpp
clientiface.cpp
collision.cpp
@ -373,6 +372,10 @@ set(common_SRCS
mapgen_v7.cpp
mapnode.cpp
mapsector.cpp
mg_biome.cpp
mg_decoration.cpp
mg_ore.cpp
mg_schematic.cpp
mods.cpp
nameidmapping.cpp
nodedef.cpp

2
src/emerge.cpp
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@ -39,7 +39,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "profiler.h"
#include "log.h"
#include "nodedef.h"
#include "biome.h"
#include "mg_biome.h"
#include "mapgen_v6.h"
#include "mapgen_v7.h"
#include "mapgen_singlenode.h"

2
src/emerge.h
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@ -38,8 +38,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
infostream << "EmergeThread: " x << std::endl; }
class EmergeThread;
//class Mapgen;
//struct MapgenFactory;
class Biome;
class BiomeDefManager;
class Decoration;

2
src/map.cpp
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@ -37,7 +37,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "environment.h"
#include "emerge.h"
#include "mapgen_v6.h"
#include "biome.h"
#include "mg_biome.h"
#include "config.h"
#include "server.h"
#include "database.h"

765
src/mapgen.cpp
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@ -20,7 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapgen.h"
#include "voxel.h"
#include "noise.h"
#include "biome.h"
#include "mg_biome.h"
#include "mapblock.h"
#include "mapnode.h"
#include "map.h"
@ -32,8 +32,6 @@ 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 "treegen.h"
#include "mapgen_v6.h"
#include "mapgen_v7.h"
#include "serialization.h"
#include "util/serialize.h"
#include "filesys.h"
@ -49,20 +47,6 @@ FlagDesc flagdesc_mapgen[] = {
{NULL, 0}
};
FlagDesc flagdesc_ore[] = {
{"absheight", OREFLAG_ABSHEIGHT},
{"scatter_noisedensity", OREFLAG_DENSITY},
{"claylike_nodeisnt", OREFLAG_NODEISNT},
{NULL, 0}
};
FlagDesc flagdesc_deco_schematic[] = {
{"place_center_x", DECO_PLACE_CENTER_X},
{"place_center_y", DECO_PLACE_CENTER_Y},
{"place_center_z", DECO_PLACE_CENTER_Z},
{NULL, 0}
};
FlagDesc flagdesc_gennotify[] = {
{"dungeon", 1 << GENNOTIFY_DUNGEON},
{"temple", 1 << GENNOTIFY_TEMPLE},
@ -76,759 +60,12 @@ FlagDesc flagdesc_gennotify[] = {
///////////////////////////////////////////////////////////////////////////////
Ore *createOre(OreType type) {
switch (type) {
case ORE_SCATTER:
return new OreScatter;
case ORE_SHEET:
return new OreSheet;
//case ORE_CLAYLIKE: //TODO: implement this!
// return new OreClaylike;
default:
return NULL;
}
}
Ore::~Ore() {
delete np;
delete noise;
}
void Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
int in_range = 0;
in_range |= (nmin.Y <= height_max && nmax.Y >= height_min);
if (flags & OREFLAG_ABSHEIGHT)
in_range |= (nmin.Y >= -height_max && nmax.Y <= -height_min) << 1;
if (!in_range)
return;
int ymin, ymax;
if (in_range & ORE_RANGE_MIRROR) {
ymin = MYMAX(nmin.Y, -height_max);
ymax = MYMIN(nmax.Y, -height_min);
} else {
ymin = MYMAX(nmin.Y, height_min);
ymax = MYMIN(nmax.Y, height_max);
}
if (clust_size >= ymax - ymin + 1)
return;
nmin.Y = ymin;
nmax.Y = ymax;
generate(mg->vm, mg->seed, blockseed, nmin, nmax);
}
void OreScatter::generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax) {
PseudoRandom pr(blockseed);
MapNode n_ore(c_ore, 0, ore_param2);
int volume = (nmax.X - nmin.X + 1) *
(nmax.Y - nmin.Y + 1) *
(nmax.Z - nmin.Z + 1);
int csize = clust_size;
int orechance = (csize * csize * csize) / clust_num_ores;
int nclusters = volume / clust_scarcity;
for (int i = 0; i != nclusters; i++) {
int x0 = pr.range(nmin.X, nmax.X - csize + 1);
int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);
if (np && (NoisePerlin3D(np, x0, y0, z0, seed) < nthresh))
continue;
for (int z1 = 0; z1 != csize; z1++)
for (int y1 = 0; y1 != csize; y1++)
for (int x1 = 0; x1 != csize; x1++) {
if (pr.range(1, orechance) != 1)
continue;
u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
continue;
vm->m_data[i] = n_ore;
}
}
}
void OreSheet::generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax) {
PseudoRandom pr(blockseed + 4234);
MapNode n_ore(c_ore, 0, ore_param2);
int max_height = clust_size;
int y_start = pr.range(nmin.Y, nmax.Y - max_height);
if (!noise) {
int sx = nmax.X - nmin.X + 1;
int sz = nmax.Z - nmin.Z + 1;
noise = new Noise(np, 0, sx, sz);
}
noise->seed = seed + y_start;
noise->perlinMap2D(nmin.X, nmin.Z);
int index = 0;
for (int z = nmin.Z; z <= nmax.Z; z++)
for (int x = nmin.X; x <= nmax.X; x++) {
float noiseval = noise->result[index++];
if (noiseval < nthresh)
continue;
int height = max_height * (1. / pr.range(1, 3));
int y0 = y_start + np->scale * noiseval; //pr.range(1, 3) - 1;
int y1 = y0 + height;
for (int y = y0; y != y1; y++) {
u32 i = vm->m_area.index(x, y, z);
if (!vm->m_area.contains(i))
continue;
if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
continue;
vm->m_data[i] = n_ore;
}
}
}
///////////////////////////////////////////////////////////////////////////////
Decoration *createDecoration(DecorationType type) {
switch (type) {
case DECO_SIMPLE:
return new DecoSimple;
case DECO_SCHEMATIC:
return new DecoSchematic;
//case DECO_LSYSTEM:
// return new DecoLSystem;
default:
return NULL;
}
}
Decoration::Decoration() {
mapseed = 0;
np = NULL;
fill_ratio = 0;
sidelen = 1;
}
Decoration::~Decoration() {
delete np;
}
void Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
PseudoRandom ps(blockseed + 53);
int carea_size = nmax.X - nmin.X + 1;
// Divide area into parts
if (carea_size % sidelen) {
errorstream << "Decoration::placeDeco: chunk size is not divisible by "
"sidelen; setting sidelen to " << carea_size << std::endl;
sidelen = carea_size;
}
s16 divlen = carea_size / sidelen;
int area = sidelen * sidelen;
for (s16 z0 = 0; z0 < divlen; z0++)
for (s16 x0 = 0; x0 < divlen; x0++) {
v2s16 p2d_center( // Center position of part of division
nmin.X + sidelen / 2 + sidelen * x0,
nmin.Z + sidelen / 2 + sidelen * z0
);
v2s16 p2d_min( // Minimum edge of part of division
nmin.X + sidelen * x0,
nmin.Z + sidelen * z0
);
v2s16 p2d_max( // Maximum edge of part of division
nmin.X + sidelen + sidelen * x0 - 1,
nmin.Z + sidelen + sidelen * z0 - 1
);
// Amount of decorations
float nval = np ?
NoisePerlin2D(np, p2d_center.X, p2d_center.Y, mapseed) :
fill_ratio;
u32 deco_count = area * MYMAX(nval, 0.f);
for (u32 i = 0; i < deco_count; i++) {
s16 x = ps.range(p2d_min.X, p2d_max.X);
s16 z = ps.range(p2d_min.Y, p2d_max.Y);
int mapindex = carea_size * (z - nmin.Z) + (x - nmin.X);
s16 y = mg->heightmap ?
mg->heightmap[mapindex] :
mg->findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
if (y < nmin.Y || y > nmax.Y)
continue;
int height = getHeight();
int max_y = nmax.Y;// + MAP_BLOCKSIZE - 1;
if (y + 1 + height > max_y) {
continue;
#if 0
printf("Decoration at (%d %d %d) cut off\n", x, y, z);
//add to queue
JMutexAutoLock cutofflock(cutoff_mutex);
cutoffs.push_back(CutoffData(x, y, z, height));
#endif
}
if (mg->biomemap) {
std::set<u8>::iterator iter;
if (biomes.size()) {
iter = biomes.find(mg->biomemap[mapindex]);
if (iter == biomes.end())
continue;
}
}
generate(mg, &ps, max_y, v3s16(x, y, z));
}
}
}
#if 0
void Decoration::placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
PseudoRandom pr(blockseed + 53);
std::vector<CutoffData> handled_cutoffs;
// Copy over the cutoffs we're interested in so we don't needlessly hold a lock
{
JMutexAutoLock cutofflock(cutoff_mutex);
for (std::list<CutoffData>::iterator i = cutoffs.begin();
i != cutoffs.end(); ++i) {
CutoffData cutoff = *i;
v3s16 p = cutoff.p;
s16 height = cutoff.height;
if (p.X < nmin.X || p.X > nmax.X ||
p.Z < nmin.Z || p.Z > nmax.Z)
continue;
if (p.Y + height < nmin.Y || p.Y > nmax.Y)
continue;
handled_cutoffs.push_back(cutoff);
}
}
// Generate the cutoffs
for (size_t i = 0; i != handled_cutoffs.size(); i++) {
v3s16 p = handled_cutoffs[i].p;
s16 height = handled_cutoffs[i].height;
if (p.Y + height > nmax.Y) {
//printf("Decoration at (%d %d %d) cut off again!\n", p.X, p.Y, p.Z);
cuttoffs.push_back(v3s16(p.X, p.Y, p.Z));
}
generate(mg, &pr, nmax.Y, nmin.Y - p.Y, v3s16(p.X, nmin.Y, p.Z));
}
// Remove cutoffs that were handled from the cutoff list
{
JMutexAutoLock cutofflock(cutoff_mutex);
for (std::list<CutoffData>::iterator i = cutoffs.begin();
i != cutoffs.end(); ++i) {
for (size_t j = 0; j != handled_cutoffs.size(); j++) {
CutoffData coff = *i;
if (coff.p == handled_cutoffs[j].p)
i = cutoffs.erase(i);
}
}
}
}
#endif
///////////////////////////////////////////////////////////////////////////////
bool DecoSimple::canPlaceDecoration(ManualMapVoxelManipulator *vm, v3s16 p) {
// Don't bother if there aren't any decorations to place
if (c_decos.size() == 0)
return false;
u32 vi = vm->m_area.index(p);
// Check if the decoration can be placed on this node
if (!CONTAINS(c_place_on, vm->m_data[vi].getContent()))
return false;
// Don't continue if there are no spawnby constraints
if (nspawnby == -1)
return true;
int nneighs = 0;
v3s16 dirs[8] = {
v3s16( 0, 0, 1),
v3s16( 0, 0, -1),
v3s16( 1, 0, 0),
v3s16(-1, 0, 0),
v3s16( 1, 0, 1),
v3s16(-1, 0, 1),
v3s16(-1, 0, -1),
v3s16( 1, 0, -1)
};
// Check a Moore neighborhood if there are enough spawnby nodes
for (size_t i = 0; i != ARRLEN(dirs); i++) {
u32 index = vm->m_area.index(p + dirs[i]);
if (!vm->m_area.contains(index))
continue;
if (CONTAINS(c_spawnby, vm->m_data[index].getContent()))
nneighs++;
}
if (nneighs < nspawnby)
return false;
return true;
}
void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
ManualMapVoxelManipulator *vm = mg->vm;
if (!canPlaceDecoration(vm, p))
return;
content_t c_place = c_decos[pr->range(0, c_decos.size() - 1)];
s16 height = (deco_height_max > 0) ?
pr->range(deco_height, deco_height_max) : deco_height;
height = MYMIN(height, max_y - p.Y);
v3s16 em = vm->m_area.getExtent();
u32 vi = vm->m_area.index(p);
for (int i = 0; i < height; i++) {
vm->m_area.add_y(em, vi, 1);
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE)
break;
vm->m_data[vi] = MapNode(c_place);
}
}
int DecoSimple::getHeight() {
return (deco_height_max > 0) ? deco_height_max : deco_height;
}
std::string DecoSimple::getName() {
return "";
}
///////////////////////////////////////////////////////////////////////////////
DecoSchematic::DecoSchematic() {
schematic = NULL;
slice_probs = NULL;
flags = 0;
size = v3s16(0, 0, 0);
}
DecoSchematic::~DecoSchematic() {
delete []schematic;
delete []slice_probs;
}
void DecoSchematic::updateContentIds() {
if (flags & DECO_SCHEM_CIDS_UPDATED)
return;
flags |= DECO_SCHEM_CIDS_UPDATED;
for (int i = 0; i != size.X * size.Y * size.Z; i++)
schematic[i].setContent(c_nodes[schematic[i].getContent()]);
}
void DecoSchematic::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) {
ManualMapVoxelManipulator *vm = mg->vm;
if (flags & DECO_PLACE_CENTER_X)
p.X -= (size.X + 1) / 2;
if (flags & DECO_PLACE_CENTER_Y)
p.Y -= (size.Y + 1) / 2;
if (flags & DECO_PLACE_CENTER_Z)
p.Z -= (size.Z + 1) / 2;
u32 vi = vm->m_area.index(p);
content_t c = vm->m_data[vi].getContent();
if (!CONTAINS(c_place_on, c))
return;
Rotation rot = (rotation == ROTATE_RAND) ?
(Rotation)pr->range(ROTATE_0, ROTATE_270) : rotation;
blitToVManip(p, vm, rot, false);
}
int DecoSchematic::getHeight() {
return size.Y;
}
std::string DecoSchematic::getName() {
return filename;
}
void DecoSchematic::blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
Rotation rot, bool force_placement) {
int xstride = 1;
int ystride = size.X;
int zstride = size.X * size.Y;
updateContentIds();
s16 sx = size.X;
s16 sy = size.Y;
s16 sz = size.Z;
int i_start, i_step_x, i_step_z;
switch (rot) {
case ROTATE_90:
i_start = sx - 1;
i_step_x = zstride;
i_step_z = -xstride;
SWAP(s16, sx, sz);
break;
case ROTATE_180:
i_start = zstride * (sz - 1) + sx - 1;
i_step_x = -xstride;
i_step_z = -zstride;
break;
case ROTATE_270:
i_start = zstride * (sz - 1);
i_step_x = -zstride;
i_step_z = xstride;
SWAP(s16, sx, sz);
break;
default:
i_start = 0;
i_step_x = xstride;
i_step_z = zstride;
}
s16 y_map = p.Y;
for (s16 y = 0; y != sy; y++) {
if (slice_probs[y] != MTSCHEM_PROB_ALWAYS &&
myrand_range(1, 255) > slice_probs[y])
continue;
for (s16 z = 0; z != sz; z++) {
u32 i = z * i_step_z + y * ystride + i_start;
for (s16 x = 0; x != sx; x++, i += i_step_x) {
u32 vi = vm->m_area.index(p.X + x, y_map, p.Z + z);
if (!vm->m_area.contains(vi))
continue;
if (schematic[i].getContent() == CONTENT_IGNORE)
continue;
if (schematic[i].param1 == MTSCHEM_PROB_NEVER)
continue;
if (!force_placement) {
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE)
continue;
}
if (schematic[i].param1 != MTSCHEM_PROB_ALWAYS &&
myrand_range(1, 255) > schematic[i].param1)
continue;
vm->m_data[vi] = schematic[i];
vm->m_data[vi].param1 = 0;
if (rot)
vm->m_data[vi].rotateAlongYAxis(ndef, rot);
}
}
y_map++;
}
}
void DecoSchematic::placeStructure(Map *map, v3s16 p, bool force_placement) {
assert(schematic != NULL);
ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
Rotation rot = (rotation == ROTATE_RAND) ?
(Rotation)myrand_range(ROTATE_0, ROTATE_270) : rotation;
v3s16 s = (rot == ROTATE_90 || rot == ROTATE_270) ?
v3s16(size.Z, size.Y, size.X) : size;
if (flags & DECO_PLACE_CENTER_X)
p.X -= (s.X + 1) / 2;
if (flags & DECO_PLACE_CENTER_Y)
p.Y -= (s.Y + 1) / 2;
if (flags & DECO_PLACE_CENTER_Z)
p.Z -= (s.Z + 1) / 2;
v3s16 bp1 = getNodeBlockPos(p);
v3s16 bp2 = getNodeBlockPos(p + s - v3s16(1,1,1));
vm->initialEmerge(bp1, bp2);
blitToVManip(p, vm, rot, force_placement);
std::map<v3s16, MapBlock *> lighting_modified_blocks;
std::map<v3s16, MapBlock *> modified_blocks;
vm->blitBackAll(&modified_blocks);
// TODO: Optimize this by using Mapgen::calcLighting() instead
lighting_modified_blocks.insert(modified_blocks.begin(), modified_blocks.end());
map->updateLighting(lighting_modified_blocks, modified_blocks);
MapEditEvent event;
event.type = MEET_OTHER;
for (std::map<v3s16, MapBlock *>::iterator
it = modified_blocks.begin();
it != modified_blocks.end(); ++it)
event.modified_blocks.insert(it->first);
map->dispatchEvent(&event);
}
bool DecoSchematic::loadSchematicFile(NodeResolver *resolver,
std::map<std::string, std::string> &replace_names)
{
content_t cignore = CONTENT_IGNORE;
bool have_cignore = false;
std::ifstream is(filename.c_str(), std::ios_base::binary);
u32 signature = readU32(is);
if (signature != MTSCHEM_FILE_SIGNATURE) {
errorstream << "loadSchematicFile: invalid schematic "
"file" << std::endl;
return false;
}
u16 version = readU16(is);
if (version > MTSCHEM_FILE_VER_HIGHEST_READ) {
errorstream << "loadSchematicFile: unsupported schematic "
"file version" << std::endl;
return false;
}
size = readV3S16(is);
delete []slice_probs;
slice_probs = new u8[size.Y];
if (version >= 3) {
for (int y = 0; y != size.Y; y++)
slice_probs[y] = readU8(is);
} else {
for (int y = 0; y != size.Y; y++)
slice_probs[y] = MTSCHEM_PROB_ALWAYS;
}
int nodecount = size.X * size.Y * size.Z;
u16 nidmapcount = readU16(is);
for (int i = 0; i != nidmapcount; i++) {
std::string name = deSerializeString(is);
if (name == "ignore") {
name = "air";
cignore = i;
have_cignore = true;
}
std::map<std::string, std::string>::iterator it;
it = replace_names.find(name);
if (it != replace_names.end())
name = it->second;
resolver->addNodeList(name.c_str(), &c_nodes);
}
delete []schematic;
schematic = new MapNode[nodecount];
MapNode::deSerializeBulk(is, SER_FMT_VER_HIGHEST_READ, schematic,
nodecount, 2, 2, true);
if (version == 1) { // fix up the probability values
for (int i = 0; i != nodecount; i++) {
if (schematic[i].param1 == 0)
schematic[i].param1 = MTSCHEM_PROB_ALWAYS;
if (have_cignore && schematic[i].getContent() == cignore)
schematic[i].param1 = MTSCHEM_PROB_NEVER;
}
}
return true;
}
/*
Minetest Schematic File Format
All values are stored in big-endian byte order.
[u32] signature: 'MTSM'
[u16] version: 3
[u16] size X
[u16] size Y
[u16] size Z
For each Y:
[u8] slice probability value
[Name-ID table] Name ID Mapping Table
[u16] name-id count
For each name-id mapping:
[u16] name length
[u8[]] name
ZLib deflated {
For each node in schematic: (for z, y, x)
[u16] content
For each node in schematic:
[u8] probability of occurance (param1)
For each node in schematic:
[u8] param2
}
Version changes:
1 - Initial version
2 - Fixed messy never/always place; 0 probability is now never, 0xFF is always
3 - Added y-slice probabilities; this allows for variable height structures
*/
void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
std::ostringstream ss(std::ios_base::binary);
writeU32(ss, MTSCHEM_FILE_SIGNATURE); // signature
writeU16(ss, MTSCHEM_FILE_VER_HIGHEST_WRITE); // version
writeV3S16(ss, size); // schematic size
for (int y = 0; y != size.Y; y++) // Y slice probabilities
writeU8(ss, slice_probs[y]);
std::vector<content_t> usednodes;
int nodecount = size.X * size.Y * size.Z;
build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
u16 numids = usednodes.size();
writeU16(ss, numids); // name count
for (int i = 0; i != numids; i++)
ss << serializeString(ndef->get(usednodes[i]).name); // node names
// compressed bulk node data
MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE, schematic,
nodecount, 2, 2, true);
fs::safeWriteToFile(filename, ss.str());
}
void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
std::vector<content_t> *usednodes) {
std::map<content_t, content_t> nodeidmap;
content_t numids = 0;
for (u32 i = 0; i != nodecount; i++) {
content_t id;
content_t c = nodes[i].getContent();
std::map<content_t, content_t>::const_iterator it = nodeidmap.find(c);
if (it == nodeidmap.end()) {
id = numids;
numids++;
usednodes->push_back(c);
nodeidmap.insert(std::make_pair(c, id));
} else {
id = it->second;
}
nodes[i].setContent(id);
}
}
bool DecoSchematic::getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2) {
ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
v3s16 bp1 = getNodeBlockPos(p1);
v3s16 bp2 = getNodeBlockPos(p2);
vm->initialEmerge(bp1, bp2);
size = p2 - p1 + 1;
slice_probs = new u8[size.Y];
for (s16 y = 0; y != size.Y; y++)
slice_probs[y] = MTSCHEM_PROB_ALWAYS;
schematic = new MapNode[size.X * size.Y * size.Z];
u32 i = 0;
for (s16 z = p1.Z; z <= p2.Z; z++)
for (s16 y = p1.Y; y <= p2.Y; y++) {
u32 vi = vm->m_area.index(p1.X, y, z);
for (s16 x = p1.X; x <= p2.X; x++, i++, vi++) {
schematic[i] = vm->m_data[vi];
schematic[i].param1 = MTSCHEM_PROB_ALWAYS;
}
}
delete vm;
return true;
}
void DecoSchematic::applyProbabilities(v3s16 p0,
std::vector<std::pair<v3s16, u8> > *plist,
std::vector<std::pair<s16, u8> > *splist) {
for (size_t i = 0; i != plist->size(); i++) {
v3s16 p = (*plist)[i].first - p0;
int index = p.Z * (size.Y * size.X) + p.Y * size.X + p.X;
if (index < size.Z * size.Y * size.X) {
u8 prob = (*plist)[i].second;
schematic[index].param1 = prob;
// trim unnecessary node names from schematic
if (prob == MTSCHEM_PROB_NEVER)
schematic[index].setContent(CONTENT_AIR);
}
}
for (size_t i = 0; i != splist->size(); i++) {
s16 y = (*splist)[i].first - p0.Y;
slice_probs[y] = (*splist)[i].second;
}
}
///////////////////////////////////////////////////////////////////////////////
Mapgen::Mapgen() {
seed = 0;

185
src/mapgen.h
View File

@ -37,30 +37,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define MG_FLAT 0x08
#define MG_LIGHT 0x10
/////////////////// Ore generation flags
// Use absolute value of height to determine ore placement
#define OREFLAG_ABSHEIGHT 0x01
// Use 3d noise to get density of ore placement, instead of just the position
#define OREFLAG_DENSITY 0x02 // not yet implemented
// For claylike ore types, place ore if the number of surrounding
// nodes isn't the specified node
#define OREFLAG_NODEISNT 0x04 // not yet implemented
/////////////////// Decoration flags
#define DECO_PLACE_CENTER_X 1
#define DECO_PLACE_CENTER_Y 2
#define DECO_PLACE_CENTER_Z 4
#define DECO_SCHEM_CIDS_UPDATED 8
#define ORE_RANGE_ACTUAL 1
#define ORE_RANGE_MIRROR 2
#define NUM_GEN_NOTIFY 6
extern FlagDesc flagdesc_mapgen[];
extern FlagDesc flagdesc_ore[];
extern FlagDesc flagdesc_deco_schematic[];
extern FlagDesc flagdesc_gennotify[];
class BiomeDefManager;
@ -92,13 +72,6 @@ enum GenNotify {
GENNOTIFY_LARGECAVE_END
};
enum OreType {
ORE_SCATTER,
ORE_SHEET,
ORE_CLAYLIKE
};
struct MapgenSpecificParams {
virtual void readParams(Settings *settings) = 0;
virtual void writeParams(Settings *settings) = 0;
@ -163,163 +136,5 @@ struct MapgenFactory {
virtual ~MapgenFactory() {}
};
class Ore {
public:
content_t c_ore; // the node to place
std::vector<content_t> c_wherein; // the nodes to be placed in
u32 clust_scarcity; // ore cluster has a 1-in-clust_scarcity chance of appearing at a node
s16 clust_num_ores; // how many ore nodes are in a chunk
s16 clust_size; // how large (in nodes) a chunk of ore is
s16 height_min;
s16 height_max;
u8 ore_param2; // to set node-specific attributes
u32 flags; // attributes for this ore
float nthresh; // threshhold for noise at which an ore is placed
NoiseParams *np; // noise for distribution of clusters (NULL for uniform scattering)
Noise *noise;
Ore() {
c_ore = CONTENT_IGNORE;
np = NULL;
noise = NULL;
}
virtual ~Ore();
void placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax) = 0;
};
class OreScatter : public Ore {
~OreScatter() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
class OreSheet : public Ore {
~OreSheet() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
Ore *createOre(OreType type);
enum DecorationType {
DECO_SIMPLE,
DECO_SCHEMATIC,
DECO_LSYSTEM
};
#if 0
struct CutoffData {
VoxelArea a;
Decoration *deco;
//v3s16 p;
//v3s16 size;
//s16 height;
CutoffData(s16 x, s16 y, s16 z, s16 h) {
p = v3s16(x, y, z);
height = h;
}
};
#endif
class Decoration {
public:
INodeDefManager *ndef;
int mapseed;
std::vector<content_t> c_place_on;
s16 sidelen;
float fill_ratio;
NoiseParams *np;
std::set<u8> biomes;
//std::list<CutoffData> cutoffs;
//JMutex cutoff_mutex;
Decoration();
virtual ~Decoration();
void placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
void placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) = 0;
virtual int getHeight() = 0;
virtual std::string getName() = 0;
};
class DecoSimple : public Decoration {
public:
std::vector<content_t> c_decos;
std::vector<content_t> c_spawnby;
s16 deco_height;
s16 deco_height_max;
s16 nspawnby;
~DecoSimple() {}
bool canPlaceDecoration(ManualMapVoxelManipulator *vm, v3s16 p);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p);
virtual int getHeight();
virtual std::string getName();
};
#define MTSCHEM_FILE_SIGNATURE 0x4d54534d // 'MTSM'
#define MTSCHEM_FILE_VER_HIGHEST_READ 3
#define MTSCHEM_FILE_VER_HIGHEST_WRITE 3
#define MTSCHEM_PROB_NEVER 0x00
#define MTSCHEM_PROB_ALWAYS 0xFF
class DecoSchematic : public Decoration {
public:
std::string filename;
std::vector<content_t> c_nodes;
u32 flags;
Rotation rotation;
v3s16 size;
MapNode *schematic;
u8 *slice_probs;
DecoSchematic();
~DecoSchematic();
void updateContentIds();
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p);
virtual int getHeight();
virtual std::string getName();
void blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
Rotation rot, bool force_placement);
bool loadSchematicFile(NodeResolver *resolver,
std::map<std::string, std::string> &replace_names);
void saveSchematicFile(INodeDefManager *ndef);
bool getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2);
void placeStructure(Map *map, v3s16 p, bool force_placement);
void applyProbabilities(v3s16 p0,
std::vector<std::pair<v3s16, u8> > *plist,
std::vector<std::pair<s16, u8> > *splist);
};
void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
std::vector<content_t> *usednodes);
/*
class DecoLSystem : public Decoration {
public:
virtual void generate(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
};
*/
Decoration *createDecoration(DecorationType type);
#endif

2
src/mapgen_v6.cpp
View File

@ -35,6 +35,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "dungeongen.h"
#include "cavegen.h"
#include "treegen.h"
#include "mg_ore.h"
#include "mg_decoration.h"
#include "mapgen_v6.h"
FlagDesc flagdesc_mapgen_v6[] = {

4
src/mapgen_v7.cpp
View File

@ -34,7 +34,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "dungeongen.h"
#include "cavegen.h"
#include "treegen.h"
#include "biome.h"
#include "mg_biome.h"
#include "mg_ore.h"
#include "mg_decoration.h"
#include "mapgen_v7.h"

2
src/biome.cpp → src/mg_biome.cpp
View File

@ -17,7 +17,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "biome.h"
#include "mg_biome.h"
#include "nodedef.h"
#include "map.h" //for ManualMapVoxelManipulator
#include "log.h"

4
src/biome.h → src/mg_biome.h
View File

@ -17,8 +17,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef BIOME_HEADER
#define BIOME_HEADER
#ifndef MG_BIOME_HEADER
#define MG_BIOME_HEADER
#include <string>
#include "nodedef.h"

275
src/mg_decoration.cpp Normal file
View File

@ -0,0 +1,275 @@
/*
Minetest
Copyright (C) 2010-2014 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 "mg_decoration.h"
#include "mg_schematic.h"
#include "mapgen.h"
#include "map.h"
#include "log.h"
#include "util/numeric.h"
///////////////////////////////////////////////////////////////////////////////
Decoration *createDecoration(DecorationType type)
{
switch (type) {
case DECO_SIMPLE:
return new DecoSimple;
case DECO_SCHEMATIC:
return new DecoSchematic;
//case DECO_LSYSTEM:
// return new DecoLSystem;
default:
return NULL;
}
}
Decoration::Decoration()
{
mapseed = 0;
np = NULL;
fill_ratio = 0;
sidelen = 1;
}
Decoration::~Decoration()
{
delete np;
}
void Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
PseudoRandom ps(blockseed + 53);
int carea_size = nmax.X - nmin.X + 1;
// Divide area into parts
if (carea_size % sidelen) {
errorstream << "Decoration::placeDeco: chunk size is not divisible by "
"sidelen; setting sidelen to " << carea_size << std::endl;
sidelen = carea_size;
}
s16 divlen = carea_size / sidelen;
int area = sidelen * sidelen;
for (s16 z0 = 0; z0 < divlen; z0++)
for (s16 x0 = 0; x0 < divlen; x0++) {
v2s16 p2d_center( // Center position of part of division
nmin.X + sidelen / 2 + sidelen * x0,
nmin.Z + sidelen / 2 + sidelen * z0
);
v2s16 p2d_min( // Minimum edge of part of division
nmin.X + sidelen * x0,
nmin.Z + sidelen * z0
);
v2s16 p2d_max( // Maximum edge of part of division
nmin.X + sidelen + sidelen * x0 - 1,
nmin.Z + sidelen + sidelen * z0 - 1
);
// Amount of decorations
float nval = np ?
NoisePerlin2D(np, p2d_center.X, p2d_center.Y, mapseed) :
fill_ratio;
u32 deco_count = area * MYMAX(nval, 0.f);
for (u32 i = 0; i < deco_count; i++) {
s16 x = ps.range(p2d_min.X, p2d_max.X);
s16 z = ps.range(p2d_min.Y, p2d_max.Y);
int mapindex = carea_size * (z - nmin.Z) + (x - nmin.X);
s16 y = mg->heightmap ?
mg->heightmap[mapindex] :
mg->findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
if (y < nmin.Y || y > nmax.Y)
continue;
int height = getHeight();
int max_y = nmax.Y;// + MAP_BLOCKSIZE - 1;
if (y + 1 + height > max_y) {
continue;
#if 0
printf("Decoration at (%d %d %d) cut off\n", x, y, z);
//add to queue
JMutexAutoLock cutofflock(cutoff_mutex);
cutoffs.push_back(CutoffData(x, y, z, height));
#endif
}
if (mg->biomemap) {
std::set<u8>::iterator iter;
if (biomes.size()) {
iter = biomes.find(mg->biomemap[mapindex]);
if (iter == biomes.end())
continue;
}
}
generate(mg, &ps, max_y, v3s16(x, y, z));
}
}
}
#if 0
void Decoration::placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
PseudoRandom pr(blockseed + 53);
std::vector<CutoffData> handled_cutoffs;
// Copy over the cutoffs we're interested in so we don't needlessly hold a lock
{
JMutexAutoLock cutofflock(cutoff_mutex);
for (std::list<CutoffData>::iterator i = cutoffs.begin();
i != cutoffs.end(); ++i) {
CutoffData cutoff = *i;
v3s16 p = cutoff.p;
s16 height = cutoff.height;
if (p.X < nmin.X || p.X > nmax.X ||
p.Z < nmin.Z || p.Z > nmax.Z)
continue;
if (p.Y + height < nmin.Y || p.Y > nmax.Y)
continue;
handled_cutoffs.push_back(cutoff);
}
}
// Generate the cutoffs
for (size_t i = 0; i != handled_cutoffs.size(); i++) {
v3s16 p = handled_cutoffs[i].p;
s16 height = handled_cutoffs[i].height;
if (p.Y + height > nmax.Y) {
//printf("Decoration at (%d %d %d) cut off again!\n", p.X, p.Y, p.Z);
cuttoffs.push_back(v3s16(p.X, p.Y, p.Z));
}
generate(mg, &pr, nmax.Y, nmin.Y - p.Y, v3s16(p.X, nmin.Y, p.Z));
}
// Remove cutoffs that were handled from the cutoff list
{
JMutexAutoLock cutofflock(cutoff_mutex);
for (std::list<CutoffData>::iterator i = cutoffs.begin();
i != cutoffs.end(); ++i) {
for (size_t j = 0; j != handled_cutoffs.size(); j++) {
CutoffData coff = *i;
if (coff.p == handled_cutoffs[j].p)
i = cutoffs.erase(i);
}
}
}
}
#endif
///////////////////////////////////////////////////////////////////////////////
bool DecoSimple::canPlaceDecoration(ManualMapVoxelManipulator *vm, v3s16 p)
{
// Don't bother if there aren't any decorations to place
if (c_decos.size() == 0)
return false;
u32 vi = vm->m_area.index(p);
// Check if the decoration can be placed on this node
if (!CONTAINS(c_place_on, vm->m_data[vi].getContent()))
return false;
// Don't continue if there are no spawnby constraints
if (nspawnby == -1)
return true;
int nneighs = 0;
v3s16 dirs[8] = {
v3s16( 0, 0, 1),
v3s16( 0, 0, -1),
v3s16( 1, 0, 0),
v3s16(-1, 0, 0),
v3s16( 1, 0, 1),
v3s16(-1, 0, 1),
v3s16(-1, 0, -1),
v3s16( 1, 0, -1)
};
// Check a Moore neighborhood if there are enough spawnby nodes
for (size_t i = 0; i != ARRLEN(dirs); i++) {
u32 index = vm->m_area.index(p + dirs[i]);
if (!vm->m_area.contains(index))
continue;
if (CONTAINS(c_spawnby, vm->m_data[index].getContent()))
nneighs++;
}
if (nneighs < nspawnby)
return false;
return true;
}
void DecoSimple::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p)
{
ManualMapVoxelManipulator *vm = mg->vm;
if (!canPlaceDecoration(vm, p))
return;
content_t c_place = c_decos[pr->range(0, c_decos.size() - 1)];
s16 height = (deco_height_max > 0) ?
pr->range(deco_height, deco_height_max) : deco_height;
height = MYMIN(height, max_y - p.Y);
v3s16 em = vm->m_area.getExtent();
u32 vi = vm->m_area.index(p);
for (int i = 0; i < height; i++) {
vm->m_area.add_y(em, vi, 1);
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE)
break;
vm->m_data[vi] = MapNode(c_place);
}
}
int DecoSimple::getHeight()
{
return (deco_height_max > 0) ? deco_height_max : deco_height;
}
std::string DecoSimple::getName()
{
return "";
}

102
src/mg_decoration.h Normal file
View File

@ -0,0 +1,102 @@
/*
Minetest
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 MG_DECORATION_HEADER
#define MG_DECORATION_HEADER
#include <set>
#include "mapnode.h"
class NoiseParams;
class Mapgen;
class ManualMapVoxelManipulator;
class PseudoRandom;
enum DecorationType {
DECO_SIMPLE,
DECO_SCHEMATIC,
DECO_LSYSTEM
};
#if 0
struct CutoffData {
VoxelArea a;
Decoration *deco;
//v3s16 p;
//v3s16 size;
//s16 height;
CutoffData(s16 x, s16 y, s16 z, s16 h) {
p = v3s16(x, y, z);
height = h;
}
};
#endif
class Decoration {
public:
INodeDefManager *ndef;
int mapseed;
std::vector<content_t> c_place_on;
s16 sidelen;
float fill_ratio;
NoiseParams *np;
std::set<u8> biomes;
//std::list<CutoffData> cutoffs;
//JMutex cutoff_mutex;
Decoration();
virtual ~Decoration();
void placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
void placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p) = 0;
virtual int getHeight() = 0;
virtual std::string getName() = 0;
};
class DecoSimple : public Decoration {
public:
std::vector<content_t> c_decos;
std::vector<content_t> c_spawnby;
s16 deco_height;
s16 deco_height_max;
s16 nspawnby;
~DecoSimple() {}
bool canPlaceDecoration(ManualMapVoxelManipulator *vm, v3s16 p);
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p);
virtual int getHeight();
virtual std::string getName();
};
/*
class DecoLSystem : public Decoration {
public:
virtual void generate(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
};
*/
Decoration *createDecoration(DecorationType type);
#endif

161
src/mg_ore.cpp Normal file
View File

@ -0,0 +1,161 @@
/*
Minetest
Copyright (C) 2010-2014 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 "mg_ore.h"
#include "mapgen.h"
#include "util/numeric.h"
#include "map.h"
#include "log.h"
FlagDesc flagdesc_ore[] = {
{"absheight", OREFLAG_ABSHEIGHT},
{"scatter_noisedensity", OREFLAG_DENSITY},
{"claylike_nodeisnt", OREFLAG_NODEISNT},
{NULL, 0}
};
///////////////////////////////////////////////////////////////////////////////
Ore *createOre(OreType type)
{
switch (type) {
case ORE_SCATTER:
return new OreScatter;
case ORE_SHEET:
return new OreSheet;
//case ORE_CLAYLIKE: //TODO: implement this!
// return new OreClaylike;
default:
return NULL;
}
}
Ore::~Ore()
{
delete np;
delete noise;
}
void Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
int in_range = 0;
in_range |= (nmin.Y <= height_max && nmax.Y >= height_min);
if (flags & OREFLAG_ABSHEIGHT)
in_range |= (nmin.Y >= -height_max && nmax.Y <= -height_min) << 1;
if (!in_range)
return;
int ymin, ymax;
if (in_range & ORE_RANGE_MIRROR) {
ymin = MYMAX(nmin.Y, -height_max);
ymax = MYMIN(nmax.Y, -height_min);
} else {
ymin = MYMAX(nmin.Y, height_min);
ymax = MYMIN(nmax.Y, height_max);
}
if (clust_size >= ymax - ymin + 1)
return;
nmin.Y = ymin;
nmax.Y = ymax;
generate(mg->vm, mg->seed, blockseed, nmin, nmax);
}
void OreScatter::generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax)
{
PseudoRandom pr(blockseed);
MapNode n_ore(c_ore, 0, ore_param2);
int volume = (nmax.X - nmin.X + 1) *
(nmax.Y - nmin.Y + 1) *
(nmax.Z - nmin.Z + 1);
int csize = clust_size;
int orechance = (csize * csize * csize) / clust_num_ores;
int nclusters = volume / clust_scarcity;
for (int i = 0; i != nclusters; i++) {
int x0 = pr.range(nmin.X, nmax.X - csize + 1);
int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);
if (np && (NoisePerlin3D(np, x0, y0, z0, seed) < nthresh))
continue;
for (int z1 = 0; z1 != csize; z1++)
for (int y1 = 0; y1 != csize; y1++)
for (int x1 = 0; x1 != csize; x1++) {
if (pr.range(1, orechance) != 1)
continue;
u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
continue;
vm->m_data[i] = n_ore;
}
}
}
void OreSheet::generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax)
{
PseudoRandom pr(blockseed + 4234);
MapNode n_ore(c_ore, 0, ore_param2);
int max_height = clust_size;
int y_start = pr.range(nmin.Y, nmax.Y - max_height);
if (!noise) {
int sx = nmax.X - nmin.X + 1;
int sz = nmax.Z - nmin.Z + 1;
noise = new Noise(np, 0, sx, sz);
}
noise->seed = seed + y_start;
noise->perlinMap2D(nmin.X, nmin.Z);
int index = 0;
for (int z = nmin.Z; z <= nmax.Z; z++)
for (int x = nmin.X; x <= nmax.X; x++) {
float noiseval = noise->result[index++];
if (noiseval < nthresh)
continue;
int height = max_height * (1. / pr.range(1, 3));
int y0 = y_start + np->scale * noiseval; //pr.range(1, 3) - 1;
int y1 = y0 + height;
for (int y = y0; y != y1; y++) {
u32 i = vm->m_area.index(x, y, z);
if (!vm->m_area.contains(i))
continue;
if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
continue;
vm->m_data[i] = n_ore;
}
}
}

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/*
Minetest
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 MG_ORE_HEADER
#define MG_ORE_HEADER
#include "util/string.h"
#include "mapnode.h"
class NoiseParams;
class Noise;
class Mapgen;
class ManualMapVoxelManipulator;
/////////////////// Ore generation flags
// Use absolute value of height to determine ore placement
#define OREFLAG_ABSHEIGHT 0x01
// Use 3d noise to get density of ore placement, instead of just the position
#define OREFLAG_DENSITY 0x02 // not yet implemented
// For claylike ore types, place ore if the number of surrounding
// nodes isn't the specified node
#define OREFLAG_NODEISNT 0x04 // not yet implemented
#define ORE_RANGE_ACTUAL 1
#define ORE_RANGE_MIRROR 2
extern FlagDesc flagdesc_ore[];
enum OreType {
ORE_SCATTER,
ORE_SHEET,
ORE_CLAYLIKE
};
class Ore {
public:
content_t c_ore; // the node to place
std::vector<content_t> c_wherein; // the nodes to be placed in
u32 clust_scarcity; // ore cluster has a 1-in-clust_scarcity chance of appearing at a node
s16 clust_num_ores; // how many ore nodes are in a chunk
s16 clust_size; // how large (in nodes) a chunk of ore is
s16 height_min;
s16 height_max;
u8 ore_param2; // to set node-specific attributes
u32 flags; // attributes for this ore
float nthresh; // threshhold for noise at which an ore is placed
NoiseParams *np; // noise for distribution of clusters (NULL for uniform scattering)
Noise *noise;
Ore() {
c_ore = CONTENT_IGNORE;
np = NULL;
noise = NULL;
}
virtual ~Ore();
void placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax) = 0;
};
class OreScatter : public Ore {
~OreScatter() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
class OreSheet : public Ore {
~OreSheet() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
Ore *createOre(OreType type);
#endif

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/*
Minetest
Copyright (C) 2010-2014 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 <fstream>
#include "mg_schematic.h"
#include "mapgen.h"
#include "map.h"
#include "mapblock.h"
#include "log.h"
#include "util/numeric.h"
#include "util/serialize.h"
#include "serialization.h"
#include "filesys.h"
FlagDesc flagdesc_deco_schematic[] = {
{"place_center_x", DECO_PLACE_CENTER_X},
{"place_center_y", DECO_PLACE_CENTER_Y},
{"place_center_z", DECO_PLACE_CENTER_Z},
{NULL, 0}
};
///////////////////////////////////////////////////////////////////////////////
DecoSchematic::DecoSchematic()
{
schematic = NULL;
slice_probs = NULL;
flags = 0;
size = v3s16(0, 0, 0);
}
DecoSchematic::~DecoSchematic()
{
delete []schematic;
delete []slice_probs;
}
void DecoSchematic::updateContentIds()
{
if (flags & DECO_SCHEM_CIDS_UPDATED)
return;
flags |= DECO_SCHEM_CIDS_UPDATED;
for (int i = 0; i != size.X * size.Y * size.Z; i++)
schematic[i].setContent(c_nodes[schematic[i].getContent()]);
}
void DecoSchematic::generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p)
{
ManualMapVoxelManipulator *vm = mg->vm;
if (flags & DECO_PLACE_CENTER_X)
p.X -= (size.X + 1) / 2;
if (flags & DECO_PLACE_CENTER_Y)
p.Y -= (size.Y + 1) / 2;
if (flags & DECO_PLACE_CENTER_Z)
p.Z -= (size.Z + 1) / 2;
u32 vi = vm->m_area.index(p);
content_t c = vm->m_data[vi].getContent();
if (!CONTAINS(c_place_on, c))
return;
Rotation rot = (rotation == ROTATE_RAND) ?
(Rotation)pr->range(ROTATE_0, ROTATE_270) : rotation;
blitToVManip(p, vm, rot, false);
}
int DecoSchematic::getHeight() {
return size.Y;
}
std::string DecoSchematic::getName() {
return filename;
}
void DecoSchematic::blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
Rotation rot, bool force_placement)
{
int xstride = 1;
int ystride = size.X;
int zstride = size.X * size.Y;
updateContentIds();
s16 sx = size.X;
s16 sy = size.Y;
s16 sz = size.Z;
int i_start, i_step_x, i_step_z;
switch (rot) {
case ROTATE_90:
i_start = sx - 1;
i_step_x = zstride;
i_step_z = -xstride;
SWAP(s16, sx, sz);
break;
case ROTATE_180:
i_start = zstride * (sz - 1) + sx - 1;
i_step_x = -xstride;
i_step_z = -zstride;
break;
case ROTATE_270:
i_start = zstride * (sz - 1);
i_step_x = -zstride;
i_step_z = xstride;
SWAP(s16, sx, sz);
break;
default:
i_start = 0;
i_step_x = xstride;
i_step_z = zstride;
}
s16 y_map = p.Y;
for (s16 y = 0; y != sy; y++) {
if (slice_probs[y] != MTSCHEM_PROB_ALWAYS &&
myrand_range(1, 255) > slice_probs[y])
continue;
for (s16 z = 0; z != sz; z++) {
u32 i = z * i_step_z + y * ystride + i_start;
for (s16 x = 0; x != sx; x++, i += i_step_x) {
u32 vi = vm->m_area.index(p.X + x, y_map, p.Z + z);
if (!vm->m_area.contains(vi))
continue;
if (schematic[i].getContent() == CONTENT_IGNORE)
continue;
if (schematic[i].param1 == MTSCHEM_PROB_NEVER)
continue;
if (!force_placement) {
content_t c = vm->m_data[vi].getContent();
if (c != CONTENT_AIR && c != CONTENT_IGNORE)
continue;
}
if (schematic[i].param1 != MTSCHEM_PROB_ALWAYS &&
myrand_range(1, 255) > schematic[i].param1)
continue;
vm->m_data[vi] = schematic[i];
vm->m_data[vi].param1 = 0;
if (rot)
vm->m_data[vi].rotateAlongYAxis(ndef, rot);
}
}
y_map++;
}
}
void DecoSchematic::placeStructure(Map *map, v3s16 p, bool force_placement)
{
assert(schematic != NULL);
ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
Rotation rot = (rotation == ROTATE_RAND) ?
(Rotation)myrand_range(ROTATE_0, ROTATE_270) : rotation;
v3s16 s = (rot == ROTATE_90 || rot == ROTATE_270) ?
v3s16(size.Z, size.Y, size.X) : size;
if (flags & DECO_PLACE_CENTER_X)
p.X -= (s.X + 1) / 2;
if (flags & DECO_PLACE_CENTER_Y)
p.Y -= (s.Y + 1) / 2;
if (flags & DECO_PLACE_CENTER_Z)
p.Z -= (s.Z + 1) / 2;
v3s16 bp1 = getNodeBlockPos(p);
v3s16 bp2 = getNodeBlockPos(p + s - v3s16(1,1,1));
vm->initialEmerge(bp1, bp2);
blitToVManip(p, vm, rot, force_placement);
std::map<v3s16, MapBlock *> lighting_modified_blocks;
std::map<v3s16, MapBlock *> modified_blocks;
vm->blitBackAll(&modified_blocks);
// TODO: Optimize this by using Mapgen::calcLighting() instead
lighting_modified_blocks.insert(modified_blocks.begin(), modified_blocks.end());
map->updateLighting(lighting_modified_blocks, modified_blocks);
MapEditEvent event;
event.type = MEET_OTHER;
for (std::map<v3s16, MapBlock *>::iterator
it = modified_blocks.begin();
it != modified_blocks.end(); ++it)
event.modified_blocks.insert(it->first);
map->dispatchEvent(&event);
}
bool DecoSchematic::loadSchematicFile(NodeResolver *resolver,
std::map<std::string, std::string> &replace_names)
{
content_t cignore = CONTENT_IGNORE;
bool have_cignore = false;
std::ifstream is(filename.c_str(), std::ios_base::binary);
u32 signature = readU32(is);
if (signature != MTSCHEM_FILE_SIGNATURE) {
errorstream << "loadSchematicFile: invalid schematic "
"file" << std::endl;
return false;
}
u16 version = readU16(is);
if (version > MTSCHEM_FILE_VER_HIGHEST_READ) {
errorstream << "loadSchematicFile: unsupported schematic "
"file version" << std::endl;
return false;
}
size = readV3S16(is);
delete []slice_probs;
slice_probs = new u8[size.Y];
if (version >= 3) {
for (int y = 0; y != size.Y; y++)
slice_probs[y] = readU8(is);
} else {
for (int y = 0; y != size.Y; y++)
slice_probs[y] = MTSCHEM_PROB_ALWAYS;
}
int nodecount = size.X * size.Y * size.Z;
u16 nidmapcount = readU16(is);
for (int i = 0; i != nidmapcount; i++) {
std::string name = deSerializeString(is);
if (name == "ignore") {
name = "air";
cignore = i;
have_cignore = true;
}
std::map<std::string, std::string>::iterator it;
it = replace_names.find(name);
if (it != replace_names.end())
name = it->second;
resolver->addNodeList(name.c_str(), &c_nodes);
}
delete []schematic;
schematic = new MapNode[nodecount];
MapNode::deSerializeBulk(is, SER_FMT_VER_HIGHEST_READ, schematic,
nodecount, 2, 2, true);
if (version == 1) { // fix up the probability values
for (int i = 0; i != nodecount; i++) {
if (schematic[i].param1 == 0)
schematic[i].param1 = MTSCHEM_PROB_ALWAYS;
if (have_cignore && schematic[i].getContent() == cignore)
schematic[i].param1 = MTSCHEM_PROB_NEVER;
}
}
return true;
}
/*
Minetest Schematic File Format
All values are stored in big-endian byte order.
[u32] signature: 'MTSM'
[u16] version: 3
[u16] size X
[u16] size Y
[u16] size Z
For each Y:
[u8] slice probability value
[Name-ID table] Name ID Mapping Table
[u16] name-id count
For each name-id mapping:
[u16] name length
[u8[]] name
ZLib deflated {
For each node in schematic: (for z, y, x)
[u16] content
For each node in schematic:
[u8] probability of occurance (param1)
For each node in schematic:
[u8] param2
}
Version changes:
1 - Initial version
2 - Fixed messy never/always place; 0 probability is now never, 0xFF is always
3 - Added y-slice probabilities; this allows for variable height structures
*/
void DecoSchematic::saveSchematicFile(INodeDefManager *ndef)
{
std::ostringstream ss(std::ios_base::binary);
writeU32(ss, MTSCHEM_FILE_SIGNATURE); // signature
writeU16(ss, MTSCHEM_FILE_VER_HIGHEST_WRITE); // version
writeV3S16(ss, size); // schematic size
for (int y = 0; y != size.Y; y++) // Y slice probabilities
writeU8(ss, slice_probs[y]);
std::vector<content_t> usednodes;
int nodecount = size.X * size.Y * size.Z;
build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
u16 numids = usednodes.size();
writeU16(ss, numids); // name count
for (int i = 0; i != numids; i++)
ss << serializeString(ndef->get(usednodes[i]).name); // node names
// compressed bulk node data
MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE, schematic,
nodecount, 2, 2, true);
fs::safeWriteToFile(filename, ss.str());
}
void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
std::vector<content_t> *usednodes)
{
std::map<content_t, content_t> nodeidmap;
content_t numids = 0;
for (u32 i = 0; i != nodecount; i++) {
content_t id;
content_t c = nodes[i].getContent();
std::map<content_t, content_t>::const_iterator it = nodeidmap.find(c);
if (it == nodeidmap.end()) {
id = numids;
numids++;
usednodes->push_back(c);
nodeidmap.insert(std::make_pair(c, id));
} else {
id = it->second;
}
nodes[i].setContent(id);
}
}
bool DecoSchematic::getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2)
{
ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);
v3s16 bp1 = getNodeBlockPos(p1);
v3s16 bp2 = getNodeBlockPos(p2);
vm->initialEmerge(bp1, bp2);
size = p2 - p1 + 1;
slice_probs = new u8[size.Y];
for (s16 y = 0; y != size.Y; y++)
slice_probs[y] = MTSCHEM_PROB_ALWAYS;
schematic = new MapNode[size.X * size.Y * size.Z];
u32 i = 0;
for (s16 z = p1.Z; z <= p2.Z; z++)
for (s16 y = p1.Y; y <= p2.Y; y++) {
u32 vi = vm->m_area.index(p1.X, y, z);
for (s16 x = p1.X; x <= p2.X; x++, i++, vi++) {
schematic[i] = vm->m_data[vi];
schematic[i].param1 = MTSCHEM_PROB_ALWAYS;
}
}
delete vm;
return true;
}
void DecoSchematic::applyProbabilities(v3s16 p0,
std::vector<std::pair<v3s16, u8> > *plist,
std::vector<std::pair<s16, u8> > *splist)
{
for (size_t i = 0; i != plist->size(); i++) {
v3s16 p = (*plist)[i].first - p0;
int index = p.Z * (size.Y * size.X) + p.Y * size.X + p.X;
if (index < size.Z * size.Y * size.X) {
u8 prob = (*plist)[i].second;
schematic[index].param1 = prob;
// trim unnecessary node names from schematic
if (prob == MTSCHEM_PROB_NEVER)
schematic[index].setContent(CONTENT_AIR);
}
}
for (size_t i = 0; i != splist->size(); i++) {
s16 y = (*splist)[i].first - p0.Y;
slice_probs[y] = (*splist)[i].second;
}
}

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/*
Minetest
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 MG_SCHEMATIC_HEADER
#define MG_SCHEMATIC_HEADER
#include <map>
#include "mg_decoration.h"
#include "util/string.h"
class Map;
class Mapgen;
class ManualMapVoxelManipulator;
class PseudoRandom;
class NodeResolver;
/////////////////// Decoration flags
#define DECO_PLACE_CENTER_X 1
#define DECO_PLACE_CENTER_Y 2
#define DECO_PLACE_CENTER_Z 4
#define DECO_SCHEM_CIDS_UPDATED 8
#define MTSCHEM_FILE_SIGNATURE 0x4d54534d // 'MTSM'
#define MTSCHEM_FILE_VER_HIGHEST_READ 3
#define MTSCHEM_FILE_VER_HIGHEST_WRITE 3
#define MTSCHEM_PROB_NEVER 0x00
#define MTSCHEM_PROB_ALWAYS 0xFF
extern FlagDesc flagdesc_deco_schematic[];
class DecoSchematic : public Decoration {
public:
std::string filename;
std::vector<content_t> c_nodes;
u32 flags;
Rotation rotation;
v3s16 size;
MapNode *schematic;
u8 *slice_probs;
DecoSchematic();
~DecoSchematic();
void updateContentIds();
virtual void generate(Mapgen *mg, PseudoRandom *pr, s16 max_y, v3s16 p);
virtual int getHeight();
virtual std::string getName();
void blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
Rotation rot, bool force_placement);
bool loadSchematicFile(NodeResolver *resolver,
std::map<std::string, std::string> &replace_names);
void saveSchematicFile(INodeDefManager *ndef);
bool getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2);
void placeStructure(Map *map, v3s16 p, bool force_placement);
void applyProbabilities(v3s16 p0,
std::vector<std::pair<v3s16, u8> > *plist,
std::vector<std::pair<s16, u8> > *splist);
};
void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
std::vector<content_t> *usednodes);
#endif

3
src/script/common/c_content.cpp
View File

@ -31,7 +31,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "tool.h"
#include "serverobject.h"
#include "porting.h"
#include "mapgen.h"
#include "mg_schematic.h"
#include "noise.h"
#include "json/json.h"
struct EnumString es_TileAnimationType[] =

6
src/script/lua_api/l_mapgen.cpp
View File

@ -25,8 +25,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "util/serialize.h"
#include "server.h"
#include "environment.h"
#include "biome.h"
#include "mg_biome.h"
#include "emerge.h"
#include "mg_biome.h"
#include "mg_ore.h"
#include "mg_decoration.h"
#include "mg_schematic.h"
#include "mapgen_v7.h"
#include "main.h"
#include "log.h"

2
src/server.cpp
View File

@ -44,7 +44,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "craftdef.h"
#include "emerge.h"
#include "mapgen.h"
#include "biome.h"
#include "mg_biome.h"
#include "content_mapnode.h"
#include "content_nodemeta.h"
#include "content_abm.h"