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); } } } }
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; }
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) { 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; }