2020-07-25 16:45:03 +00:00
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#include "Universe.hpp"
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2020-07-10 17:49:16 +00:00
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2020-07-31 23:17:09 +00:00
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#include <Remotery.h> // NOLINT
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2020-07-26 20:53:14 +00:00
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#include <filesystem>
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2020-07-31 17:09:44 +00:00
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#include "../contouring/Dummy.hpp"
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#include "Chunk.hpp"
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2020-07-10 17:49:16 +00:00
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2020-07-25 16:45:03 +00:00
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using namespace world;
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2020-07-31 22:11:08 +00:00
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Universe::Universe(const Universe::options &options): generator(42), dicts("content/zstd.dict"), contouring(std::make_shared<contouring::Dummy>()) {
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2020-07-10 17:49:16 +00:00
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setOptions(options);
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2020-07-30 16:35:13 +00:00
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folderPath = options.folderPath;
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struct vec_istream: std::streambuf {
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vec_istream(std::vector<char> &vec) {
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this->setg(&vec[0], &vec[0], &vec[0] + vec.size());
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}
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};
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running = true;
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std::filesystem::create_directories(folderPath);
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2020-07-10 17:49:16 +00:00
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2020-07-30 16:35:13 +00:00
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// Load workers
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for (size_t i = 0; i < 4; i++) {
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2020-07-31 17:09:44 +00:00
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loadWorkers.emplace_back([&] {
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2020-07-31 22:11:08 +00:00
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const auto ctx = dicts.make_reader();
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2020-07-22 20:55:13 +00:00
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while (running) {
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2020-07-31 20:26:07 +00:00
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chunk_pos pos;
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2020-07-22 20:55:13 +00:00
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loadQueue.wait();
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2020-07-31 20:26:07 +00:00
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if (loadQueue.pop(pos)) {
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2020-07-26 20:53:14 +00:00
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//MAYBE: loadQueue.take to avoid duplicated work on fast move
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rmt_ScopedCPUSample(ProcessLoad, 0);
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2020-07-31 20:26:07 +00:00
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const region_pos rPos = glm::divide(pos, region_chunk_pos(REGION_LENGTH));
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const region_chunk_pos cPos = glm::modulo(pos, region_chunk_pos(REGION_LENGTH));
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2020-07-30 16:35:13 +00:00
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const auto reg = getRegion(rPos);
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Region::data data;
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if(reg->read(cPos, ctx, data)) {
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2020-07-26 20:53:14 +00:00
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rmt_ScopedCPUSample(ProcessRead, 0);
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2020-07-30 16:35:13 +00:00
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vec_istream idata(data);
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std::istream iss(&idata);
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2020-07-31 20:26:07 +00:00
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loadedQueue.push({pos, std::make_shared<Chunk>(iss)});
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2020-07-26 20:53:14 +00:00
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} else {
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rmt_ScopedCPUSample(ProcessGenerate, 0);
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2020-07-31 20:26:07 +00:00
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loadedQueue.push({pos, std::make_shared<Chunk>(pos, generator)});
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2020-07-26 20:53:14 +00:00
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}
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2020-07-22 20:55:13 +00:00
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}
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}
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2020-07-31 17:09:44 +00:00
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});
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2020-07-22 20:55:13 +00:00
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}
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2020-07-30 16:35:13 +00:00
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// Save workers
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for (size_t i = 0; i < 2; i++) {
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2020-07-31 17:09:44 +00:00
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saveWorkers.emplace_back([&] {
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2020-07-31 22:11:08 +00:00
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const auto ctx = dicts.make_writer();
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2020-07-26 20:53:14 +00:00
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while (running) {
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2020-07-31 20:26:07 +00:00
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robin_hood::pair<chunk_pos, std::shared_ptr<Chunk>> task;
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2020-07-30 16:35:13 +00:00
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saveQueue.wait();
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2020-07-31 20:26:07 +00:00
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if (saveQueue.pop(task) && task.second->isModified()) {
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2020-07-26 20:53:14 +00:00
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//MAYBE: queue.take to avoid concurent write or duplicated work on fast move
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rmt_ScopedCPUSample(ProcessSave, 0);
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2020-07-30 16:35:13 +00:00
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std::ostringstream out;
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2020-07-31 20:26:07 +00:00
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task.second->write(out);
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const region_pos rPos = glm::divide(task.first, region_chunk_pos(REGION_LENGTH));
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const region_chunk_pos cPos = glm::modulo(task.first, region_chunk_pos(REGION_LENGTH));
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const auto reg = getRegion(rPos);
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reg->write(cPos, ctx, out.str());
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}
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}
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2020-07-31 17:09:44 +00:00
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});
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2020-07-26 20:53:14 +00:00
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}
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}
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2020-07-30 16:35:13 +00:00
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Universe::~Universe() {
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contouring = NULL;
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// Save all
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for(auto& pair: chunks) {
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saveQueue.push(pair);
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}
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2020-07-31 20:26:07 +00:00
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if (auto size = saveQueue.size(); size > 0) {
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std::cout << std::endl;
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do {
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std::cout << "\rSaving... " << size << " " << std::flush;
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std::this_thread::sleep_for(std::chrono::microseconds(500));
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size = saveQueue.size();
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} while (size > 0);
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std::cout << std::endl;
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}
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2020-07-26 20:53:14 +00:00
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running = false;
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2020-07-30 16:35:13 +00:00
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loadQueue.notify();
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saveQueue.notify();
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2020-07-26 20:53:14 +00:00
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2020-07-30 16:35:13 +00:00
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for (auto &worker: loadWorkers) {
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if (worker.joinable())
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worker.join();
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}
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for (auto &worker: saveWorkers) {
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2020-07-26 20:53:14 +00:00
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if (worker.joinable())
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worker.join();
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}
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}
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std::shared_ptr<Region> Universe::getRegion(const region_pos& pos) {
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{ // Found
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const auto shared = regions.lock_shared();
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const auto it = shared->find(pos);
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if(it != shared->end())
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return it->second;
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}
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// Reading
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const auto reg = std::make_shared<Region>(folderPath, pos);
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const auto unique = regions.lock();
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return unique->insert({pos, reg}).first->second;
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2020-07-30 16:35:13 +00:00
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}
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2020-07-26 20:53:14 +00:00
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2020-08-01 21:31:01 +00:00
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void Universe::update(const voxel_pos& pos, Universe::report& rep) {
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2020-07-10 17:49:16 +00:00
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const chunk_pos newPos = glm::divide(pos, chunk_voxel_pos(CHUNK_LENGTH));
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2020-07-26 20:53:14 +00:00
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const auto chunkChange = last_pos != newPos;
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2020-07-10 17:49:16 +00:00
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last_pos = newPos;
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2020-07-25 16:45:03 +00:00
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rmt_ScopedCPUSample(Universe, 0);
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2020-07-10 17:49:16 +00:00
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// Update alive chunks
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{
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2020-07-18 12:54:07 +00:00
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rmt_ScopedCPUSample(Update, 0);
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2020-07-26 20:53:14 +00:00
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auto it = chunks.begin();
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while (it != chunks.end()) {
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if (glm::length2(last_pos - it->first) > keepDistance * keepDistance) {
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saveQueue.push(*it);
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it = chunks.erase(it);
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} else {
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if (const auto neighbors = it->second->update()) {
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contouring->onUpdate(it->first, chunks, neighbors.value()); //TODO: get update update_type(simple(pos), complex)
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} else if (chunkChange) {
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contouring->onNotify(it->first, chunks);
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}
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++it;
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2020-07-10 17:49:16 +00:00
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}
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}
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}
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2020-07-30 16:35:13 +00:00
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rep.chunk_unload.push(saveQueue.size());
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2020-07-22 20:55:13 +00:00
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{
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rmt_ScopedCPUSample(Contouring, 0);
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contouring->update(pos);
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//MAYBE: if(chunkChange) contouring->notify(chunks);
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2020-07-10 17:49:16 +00:00
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}
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2020-07-22 20:55:13 +00:00
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// Find missing chunks
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if(chunkChange) {
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2020-07-18 12:54:07 +00:00
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rmt_ScopedCPUSample(ToLoad, 0);
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2020-07-26 20:53:14 +00:00
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//NOTE: need dist so no easy sphere fill
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2020-07-10 17:49:16 +00:00
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for (int x = -loadDistance; x <= loadDistance; x++) {
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for (int y = -loadDistance; y <= loadDistance; y++) {
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for (int z = -loadDistance; z <= loadDistance; z++) {
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2020-07-22 20:55:13 +00:00
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const auto dist2 = x * x + y * y + z * z;
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if (dist2 <= loadDistance * loadDistance) {
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const auto p = last_pos + chunk_pos(x, y, z);
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if (chunks.find(p) == chunks.end()) {
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2020-07-30 16:35:13 +00:00
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loadQueue.push(p, -dist2);
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2020-07-10 17:49:16 +00:00
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}
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}
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}}}
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}
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2020-07-30 16:35:13 +00:00
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rep.chunk_load.push(loadQueue.size());
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2020-07-22 20:55:13 +00:00
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// Loaded chunks
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2020-07-18 12:54:07 +00:00
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{
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rmt_ScopedCPUSample(Load, 0);
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2020-07-23 19:39:08 +00:00
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robin_hood::pair<chunk_pos, std::shared_ptr<Chunk>> loaded;
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2020-07-30 16:35:13 +00:00
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while (loadedQueue.pop(loaded)) {
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2020-07-22 20:55:13 +00:00
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chunks.insert(loaded);
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contouring->onUpdate(loaded.first, chunks, Faces::All);
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2020-07-14 17:03:32 +00:00
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}
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2020-07-10 17:49:16 +00:00
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}
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rep.chunk_count.push(chunks.size());
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2020-07-31 20:26:07 +00:00
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2020-08-01 21:31:01 +00:00
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if(!rep.chunk_load.current() && !rep.chunk_unload.current()) {
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2020-07-31 20:26:07 +00:00
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rmt_ScopedCPUSample(Region, 0);
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2020-07-31 22:11:08 +00:00
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const auto unique = regions.lock(); // MAYBE: shared then unique
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rep.region_count.push(unique->size());
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const auto me = glm::divide(last_pos, glm::uvec3(REGION_LENGTH));
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for (auto it = unique->begin(); it != unique->end(); it++) {
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2020-08-01 21:31:01 +00:00
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if (glm::length2(glm::lvec3(it->first) - me) > keepDistance) { //FIXME: probably a limit
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2020-07-31 22:11:08 +00:00
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unique->erase(it);
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break; //NOTE: save one max per frame
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2020-07-31 20:26:07 +00:00
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}
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}
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}
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2020-07-10 17:49:16 +00:00
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}
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2020-07-25 16:45:03 +00:00
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void Universe::setOptions(const Universe::options& options) {
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loadDistance = options.loadDistance;
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keepDistance = options.keepDistance;
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}
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2020-07-31 23:17:09 +00:00
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void Universe::setContouring(const std::shared_ptr<contouring::Abstract>& ct) {
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2020-07-18 15:42:45 +00:00
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contouring = ct;
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last_pos = chunk_pos(INT_MAX); // trigger chunkChange on next update
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2020-07-10 19:37:49 +00:00
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}
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2020-07-25 14:29:05 +00:00
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2020-07-25 16:45:03 +00:00
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std::optional<std::pair<voxel_pos, Voxel>> Universe::raycast(const Ray &ray) const {
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2020-07-25 14:29:05 +00:00
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std::vector<voxel_pos> points;
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ray.grid(points);
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std::shared_ptr<Chunk> chunk = NULL;
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2020-08-01 21:31:01 +00:00
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chunk_pos chunk_vec(INT_MAX);
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for(auto point: points) {
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2020-08-01 21:31:01 +00:00
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const chunk_pos pos = glm::divide(point, glm::uvec3(CHUNK_LENGTH));
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if(pos != chunk_vec) {
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2020-07-25 14:29:05 +00:00
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if(const auto& newChunk = at(pos)) {
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chunk = newChunk.value();
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2020-08-01 21:31:01 +00:00
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chunk_vec = pos;
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2020-07-25 14:29:05 +00:00
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}
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}
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if(chunk != NULL) {
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const auto voxel = chunk->getAt(glm::modulo(point, glm::uvec3(CHUNK_LENGTH)));
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2020-08-02 09:47:25 +00:00
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if(voxel.density() > 0)
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2020-07-25 14:29:05 +00:00
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return {{point, voxel}};
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}
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}
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return {};
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}
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2020-07-25 16:45:03 +00:00
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std::optional<Item> Universe::set(const voxel_pos& pos, const Voxel& val) {
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2020-08-01 21:31:01 +00:00
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const auto chunkPos = glm::divide(pos, glm::uvec3(CHUNK_LENGTH));
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2020-07-25 14:29:05 +00:00
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if(const auto& chunk = at(chunkPos)) {
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2020-08-01 21:31:01 +00:00
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return {chunk.value()->breakAt(glm::modulo(pos, glm::uvec3(CHUNK_LENGTH)), val)};
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2020-07-25 14:29:05 +00:00
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} else {
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return {};
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}
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}
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2020-07-25 16:45:03 +00:00
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ItemList Universe::setCube(const voxel_pos& pos, const Voxel& val, int radius) {
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2020-07-25 14:29:05 +00:00
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ItemList list;
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for (int z = -radius; z <= radius; z++) {
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for (int y = -radius; y <= radius; y++) {
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for (int x = -radius; x <= radius; x++) {
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//TODO: list.pop(val)
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2020-08-01 21:31:01 +00:00
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list.add(set(pos + glm::llvec3(x, y, z), val));
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2020-07-25 14:29:05 +00:00
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}}}
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return list;
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}
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