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));
}
}
}
size_t 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 = (flags & DECO_USE_NOISE) ?
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 ||
y < y_min || y > y_max)
continue;
if (y + getHeight() >= mg->vm->m_area.MaxEdge.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.empty()) {
iter = biomes.find(mg->biomemap[mapindex]);
if (iter == biomes.end())
continue;
}
}
v3s16 pos(x, y, z);
if (generate(mg->vm, &ps, pos))
mg->gennotify.addEvent(GENNOTIFY_DECORATION, pos, index);
}
}
return 0;
}
size_t Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
PcgRandom ps(blockseed + 53);
int carea_size = nmax.X - nmin.X + 1;
// Divide area into parts
// If chunksize is changed it may no longer be divisable by sidelen
if (carea_size % sidelen)
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 = (flags & DECO_USE_NOISE) ?
NoisePerlin2D(&np, p2d_center.X, p2d_center.Y, mapseed) :
fill_ratio;
u32 deco_count = 0;
float deco_count_f = (float)area * nval;
if (deco_count_f >= 1.f) {
deco_count = deco_count_f;
} else if (deco_count_f > 0.f) {
// For low density decorations calculate a chance for 1 decoration
if (ps.range(1000) <= deco_count_f * 1000.f)
deco_count = 1;
}
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 = -MAX_MAP_GENERATION_LIMIT;
if (flags & DECO_LIQUID_SURFACE)
y = mg->findLiquidSurface(v2s16(x, z), nmin.Y, nmax.Y);
else if (mg->heightmap)
y = mg->heightmap[mapindex];
else
y = mg->findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
if (y < nmin.Y || y > nmax.Y ||
y < y_min || y > y_max)
continue;
if (y + getHeight() >= mg->vm->m_area.MaxEdge.Y) {
continue;
#if 0
printf("Decoration at (%d %d %d) cut off\n", x, y, z);
//add to queue
MutexAutoLock cutofflock(cutoff_mutex);
cutoffs.push_back(CutoffData(x, y, z, height));
#endif
}
if (mg->biomemap) {
std::set<u8>::iterator iter;
if (!biomes.empty()) {
iter = biomes.find(mg->biomemap[mapindex]);
if (iter == biomes.end())
continue;
}
}
v3s16 pos(x, y, z);
if (generate(mg->vm, &ps, pos))
mg->gennotify.addEvent(GENNOTIFY_DECORATION, pos, index);
}
}
return 0;
}
