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Univerxel/src/server/world/Universe.cpp

707 lines
31 KiB
C++

#include "Universe.hpp"
#include <Tracy.hpp> //NOLINT
#include <common/TracySystem.hpp> // NOLINT
#include <filesystem>
#include <random>
#include "Chunk.hpp"
#include "../../core/world/raycast.hpp"
#include "../../core/world/actions.hpp"
#include "../../core/net/PacketView.hpp"
using namespace world::server;
const auto AREAS_FILE = "/areas.idx";
Universe::Universe(const Universe::options &options): host(options.connection, options.maxPlayers),
dict_content({options.folderPath + "/zstd.dict", "content/zstd.dict"}), dicts(dict_content), dict_write_ctx(dicts.make_writer()) {
setOptions(options);
folderPath = options.folderPath;
running = true;
std::filesystem::create_directories(folderPath);
{
std::ifstream index(folderPath + AREAS_FILE);
if(index.good()) {
size_t size = 0;
index.read(reinterpret_cast<char *>(&size), sizeof(size));
robin_hood::unordered_map<size_t, Area::params> tmp;
while(!index.eof()) {
size_t id = UINT32_MAX;
index.read(reinterpret_cast<char *>(&id), sizeof(size_t));
Area::params params{voxel_pos(0), 0, generator::params()};
index.read(reinterpret_cast<char *>(&params.center.x), sizeof(voxel_pos::value_type));
index.read(reinterpret_cast<char *>(&params.center.y), sizeof(voxel_pos::value_type));
index.read(reinterpret_cast<char *>(&params.center.z), sizeof(voxel_pos::value_type));
index.read(reinterpret_cast<char *>(&params.radius), sizeof(int));
index.read(reinterpret_cast<char *>(&params.properties), sizeof(generator::params));
[[maybe_unused]]
auto ok = tmp.emplace(id, params).second;
assert(ok && "Duplicated area");
index.peek();
}
assert(tmp.size() == size && "Corrupted areas index");
far_areas = data::generational::vector<Area::params>(tmp);
LOG_T(far_areas.size() << " areas loaded");
} else {
LOG_E("No index file!!! Probably a new world...");
//TODO: generate universe
const auto radius = 1 << 4;
far_areas.emplace(Area::params{glm::multiply(voxel_pos(radius, 0, 0)), radius,
generator::params(std::in_place_type<generator::RoundPlanet::Params>, radius * CHUNK_LENGTH * 3 / 4, 42)});
//far_areas.emplace(Area::params{voxel_pos(0), 1 << 20, generator::params(std::in_place_type<generator::Cave::Params>, 42)});
}
spawnPoint = voxel_pos(100, 0, 0); //TODO: save in index
index.close();
}
{
[[maybe_unused]]
const auto type_id = entities.emplace(glm::vec3(1), glm::vec3(2));
assert(type_id == PLAYER_ENTITY_ID);
}
// Workers
for (size_t i = 0; i < std::max<uint32_t>(1, std::thread::hardware_concurrency() / 2 - 1); i++) {
workers.emplace_back([&] {
#if TRACY_ENABLE
tracy::SetThreadName("Chunks");
#endif
const auto read_ctx = dicts.make_reader();
const auto write_ctx = dicts.make_writer();
while (running) {
if (std::pair<area_<chunk_pos>, std::shared_ptr<Area>> task; loadQueue.pop(task)) {
//MAYBE: loadQueue.take to avoid duplicated work on fast move
ZoneScopedN("ProcessLoad");
const auto &pos = task.first;
const auto rcPos = glm::split(pos.second);
const auto reg = task.second->getRegion(folderPath, std::make_pair(pos.first, rcPos.first));
Region::data data;
if(reg->read(rcPos.second, read_ctx, data)) {
ZoneScopedN("ProcessRead");
vec_istream idata(data);
std::istream iss(&idata);
loadedQueue.push({pos, createChunk(iss)});
} else {
ZoneScopedN("ProcessGenerate");
loadedQueue.push({pos, createChunk(pos.second, task.second->getGenerator())});
}
} else if(save_task_t task; saveQueue.pop(task)) {
//MAYBE: queue.take to avoid concurent write or duplicated work on fast move
ZoneScopedN("ProcessSave");
if(task.second.second->isModified()) {
std::ostringstream out;
task.second.second->write(out);
const auto rcPos = glm::split(task.second.first);
const auto reg = task.first.second->getRegion(folderPath, std::make_pair(task.first.first, rcPos.first));
reg->write(rcPos.second, write_ctx, out.str());
}
} else {
loadQueue.wait();
}
}
});
}
}
Universe::~Universe() {
saveAll(false);
saveAreas();
running = false;
loadQueue.notify_all();
for (auto &worker: workers) {
if (worker.joinable())
worker.join();
}
LOG_D("Universe disappeared");
}
void Universe::saveAll(bool remove) {
for(auto& area: areas) {
auto& chunks = area.second->setChunks();
for (auto it_c = chunks.begin(); it_c != chunks.end(); remove ? it_c = chunks.erase(it_c) : ++it_c) {
saveQueue.emplace(area, std::make_pair(it_c->first, std::dynamic_pointer_cast<Chunk>(it_c->second)));
}
}
loadQueue.notify_all();
if (auto size = saveQueue.size(); size > 0) {
LOG_I("Saving " << size << " chunks");
const auto SAVE_CHECK_TIME = 500;
do {
loadQueue.notify_all();
std::cout << "\rSaving... " << size << " " << std::flush;
std::this_thread::sleep_for(std::chrono::microseconds(SAVE_CHECK_TIME));
size = saveQueue.size();
} while (size > 0);
std::cout << std::endl;
}
}
// Write areas index (warn: file io)
void Universe::saveAreas() const {
std::ofstream index(folderPath + AREAS_FILE, std::ios::out | std::ios::binary);
if(!index.good()) {
LOG_E("Areas index write error");
return;
}
{
size_t size = areas.size() + far_areas.size();
index.write(reinterpret_cast<char *>(&size), sizeof(size));
}
std::function write = [&](area_id id, Area::params params) {
auto idx = id.index;
index.write(reinterpret_cast<char *>(&idx), sizeof(size_t));
index.write(reinterpret_cast<char *>(&params.center.x), sizeof(voxel_pos::value_type));
index.write(reinterpret_cast<char *>(&params.center.y), sizeof(voxel_pos::value_type));
index.write(reinterpret_cast<char *>(&params.center.z), sizeof(voxel_pos::value_type));
index.write(reinterpret_cast<char *>(&params.radius), sizeof(int));
index.write(reinterpret_cast<char *>(&params.properties), sizeof(generator::params)); // MAYBE: use binary structured format (protobuf/msgpack)
};
for(const auto& area: areas) {
write(area.first, area.second->getParams());
}
far_areas.iter(write);
if(!index.good())
LOG_E("Areas index write error");
index.close();
}
void Universe::update(float deltaTime) {
ZoneScopedN("Universe");
pullNetwork();
std::vector<voxel_pos> moves;
{
moves.reserve(movedPlayers.size());
for (const auto& id: movedPlayers) {
if (auto player = findEntity(PLAYER_ENTITY_ID, id))
moves.push_back(player->pos.as_voxel());
}
movedPlayers.clear();
}
if (!moves.empty()) {
ZoneScopedN("Far");
bool extracted = false;
far_areas.extract([&](area_id id, Area::params params) {
for(const auto& move: moves) {
if(const chunk_pos diff = glm::divide(move - params.center);
glm::length2(diff) <= glm::pow2(loadDistance + params.radius)) {
LOG_I("Load area " << id.index);
areas.emplace(id, std::make_shared<Area>(params));
extracted = true;
return true;
}
}
return false;
});
if(extracted)
broadcastAreas();
}
const auto &players = entities.at(PLAYER_ENTITY_ID).instances;
{ // Update alive areas
ZoneScopedN("World");
#if TRACY_ENABLE
size_t chunk_count = 0;
size_t region_count = 0;
#endif
const bool queuesEmpty = loadQueue.empty() && saveQueue.empty();
bool allLazy = true;
auto it = areas.begin();
while (it != areas.end()) {
ZoneScopedN("Area");
//FIXME: const auto areaChunkChange = it->second->move(glm::vec3(deltaTime));
const auto areaRange = glm::pow2(keepDistance + it->second->getChunks().getRadius());
const auto areaDiff = glm::divide(it->second->getOffset().as_voxel());
std::vector<chunk_pos> inAreaPlayers;
players.iter([&](entity_id, Entity::Instance player) {
const chunk_pos diff = glm::divide(player.pos.as_voxel() - it->second->getOffset().as_voxel());
if (glm::length2(diff) <= areaRange)
inAreaPlayers.push_back(diff);
});
auto &chunks = it->second->setChunks();
if (inAreaPlayers.empty()) {
auto it_c = chunks.begin();
while(it_c != chunks.end()) {
saveQueue.emplace(*it, std::make_pair(it_c->first, std::dynamic_pointer_cast<Chunk>(it_c->second)));
it_c = chunks.erase(it_c);
}
LOG_I("Unload area " << it->first.index);
[[maybe_unused]]
auto ok = far_areas.put(it->first, it->second->getParams());
assert(ok);
it = areas.erase(it);
saveAreas();
} else {
bool lazyArea = queuesEmpty;
{ // Update alive chunks
ZoneScopedN("Alive");
auto it_c = chunks.begin();
while(it_c != chunks.end()) {
if ([&] {
const auto keepDist = glm::pow2(keepDistance);
for(const auto& diff: inAreaPlayers) {
if (glm::length2(diff - it_c->first) < keepDist)
return true;
}
return false;
}()) {
updateChunk(it, it_c, areaDiff, deltaTime);
++it_c;
#if TRACY_ENABLE
chunk_count++;
#endif
} else {
saveQueue.emplace(*it, std::make_pair(it_c->first, std::dynamic_pointer_cast<Chunk>(it_c->second))); //MAYBE: take look
lazyArea = false;
it_c = chunks.erase(it_c);
}
}
}
{ // Enqueue missing chunks
ZoneScopedN("Missing");
auto handle = loadQueue.inserter();
for (const auto& to: moves) {
const chunk_pos diff = glm::divide(to - it->second->getOffset().as_voxel());
if (glm::length2(diff) > areaRange)
continue;
//TODO: need dist so no easy sphere fill
for (int x = -loadDistance; x <= loadDistance; x++) {
for (int y = -loadDistance; y <= loadDistance; y++) {
for (int z = -loadDistance; z <= loadDistance; z++) {
const auto dist2 = x * x + y * y + z * z;
if (dist2 <= loadDistance * loadDistance) {
const auto p = diff + chunk_pos(x, y, z);
if (chunks.inRange(p) && chunks.find(p) == chunks.end()) {
handle.first(std::make_pair(it->first, p), it->second, -dist2);
lazyArea = false;
}
}
}}}
}
if(!lazyArea)
loadQueue.notify_all();
}
allLazy &= lazyArea;
if (lazyArea) { // Clear un-used regions
ZoneScopedN("Region");
const auto unique = it->second->getRegions(); // MAYBE: shared then unique
#if TRACY_ENABLE
region_count += unique->size();
#endif
for (auto it_r = unique->begin(); it_r != unique->end(); ++it_r) {
if([&] {
const auto keepDist = glm::pow2(keepDistance + REGION_LENGTH * 2);
for(const auto& diff: inAreaPlayers) {
if (glm::length2(diff - glm::lvec3(it_r->first) * glm::lvec3(REGION_LENGTH)) <= keepDist)
return false;
}
return true;
}()) {
unique->erase(it_r); //FIXME: may wait for os file access (long)
break; //NOTE: save one only max per frame
}
}
}
++it;
}
}
#if TRACY_ENABLE
TracyPlot("ChunkCount", static_cast<int64_t>(chunk_count));
if(allLazy) {
TracyPlot("Region", static_cast<int64_t>(region_count));
}
TracyPlot("ChunkLoad", static_cast<int64_t>(loadQueue.size()));
TracyPlot("ChunkUnload", static_cast<int64_t>(saveQueue.size()));
#endif
}
{ // Update entities
ZoneScopedN("Entities");
size_t item_count = 0;
entities.for_each([&](entity_id type, Entity &val) {
val.instances.remove([&](entity_id, Entity::Instance &inst) {
if (type == PLAYER_ENTITY_ID) {
//MAYBE: update players ?
item_count++;
return false;
}
inst.pos += inst.velocity * deltaTime;
if (true /*FIXME: remove far entities ? glm::length2(glm::divide(pos - inst.pos.as_voxel())) <= glm::pow2(keepDistance);*/) {
item_count++;
return false;
}
return true;
//MAYBE: Store in region ?
//MAYBE: Save to files
});
});
TracyPlot("EntityCount", static_cast<int64_t>(item_count));
constexpr auto CAT_SIZE = sizeof(entity_id::index) + sizeof(size_t);
constexpr auto ITEM_SIZE = sizeof(entity_id::index) + sizeof(glm::ifvec3) + sizeof(glm::vec3);
auto packet = net::Server::makePacket(net::server_packet_type::ENTITIES, NULL, CAT_SIZE * entities.size() + ITEM_SIZE * item_count, 0);
entities.iter([&](entity_id id, const Entity &entity) {
packet.write(id.index);
packet.write(entity.instances.size());
entity.instances.iter([&](entity_id i, const Entity::Instance &inst) {
packet.write(i.index);
packet.write(inst.pos);
packet.write(inst.velocity);
});
});
assert(packet.isFull());
host.broadcast(packet.get(), net::channel_type::RELIABLE);
}
{ // Store loaded chunks
ZoneScopedN("Load");
robin_hood::pair<area_<chunk_pos>, std::shared_ptr<Chunk>> loaded;
for (auto handle = loadedQueue.extractor(); handle.first(loaded);) {
if (const auto it = areas.find(loaded.first.first); it != areas.end()) {
it->second->setChunks().emplace(loaded.first.second, loaded.second);
loadChunk(loaded.first, glm::divide(it->second->getOffset().as_voxel()), it->second->getChunks());
// MAYBE: limit chunks per update
host.broadcast(serializeChunk(loaded), net::channel_type::RELIABLE);
}
}
}
}
struct net_client {
net_client(net::salt_t salt, data::generational::id id): salt(salt), instanceId(id) { }
net::salt_t salt;
data::generational::id instanceId;
};
void Universe::pullNetwork() {
ZoneScopedN("Network");
using namespace net;
host.pull(
[&](peer_t *peer, salt_t salt) {
ZoneScopedN("Connect");
LOG_I("Client connect from " << peer->address);
net_client* client = new net_client(salt, entities.at(PLAYER_ENTITY_ID).instances.emplace(Entity::Instance{spawnPoint, glm::vec3(0)}));
peer->data = client;
const salt_t rnd = std::rand();
host.sendTo<salt_t>(peer, server_packet_type::CHALLENGE, rnd, channel_type::RELIABLE);
client->salt = salt ^ rnd;
host.send(peer, server_packet_type::CAPABILITIES, loadDistance, channel_type::RELIABLE);
host.send(peer, server_packet_type::COMPRESSION, dict_content.data(), dict_content.size(), channel_type::RELIABLE);
{
auto player = findEntity(PLAYER_ENTITY_ID, client->instanceId);
struct tp { size_t bindEntity; voxel_pos position; };
host.sendTo(peer, server_packet_type::TELEPORT, tp{client->instanceId.index, player->pos.as_voxel()}, channel_type::RELIABLE);
movedPlayers.insert(client->instanceId);
}
{
constexpr auto ITEM_SIZE = sizeof(entity_id::index) + sizeof(glm::vec3) * 2;
auto packet = net::Server::makePacket(net::server_packet_type::ENTITY_TYPES, NULL, ITEM_SIZE * entities.size(), ENET_PACKET_FLAG_RELIABLE);
entities.iter([&](entity_id id, const Entity &entity) {
packet.write(id.index);
packet.write(entity.size);
packet.write(entity.scale);
});
assert(packet.isFull());
host.broadcast(packet.get(), net::channel_type::RELIABLE);
}
broadcastMessage("> Player" + std::to_string(client->instanceId.index) + " has joined us");
broadcastAreas();
},
[&](peer_t *peer, disconnect_reason reason) {
ZoneScopedN("Disconnect");
LOG_I("Client disconnect from " << peer->address << " with " << (enet_uint32)reason);
if (const auto data = Server::GetPeerData<net_client>(peer)) {
broadcastMessage("> Player" + std::to_string(data->instanceId.index) + " has left our universe");
entities.at(PLAYER_ENTITY_ID).instances.free(data->instanceId);
delete data;
}
},
[&](peer_t *peer, packet_t* packet, channel_type) {
ZoneScopedN("Data");
if(packet->dataLength < sizeof(client_packet_type) + sizeof(salt_t)) {
LOG_T("Empty packet from " << peer->address);
return;
}
if (memcmp(peer->data, packet->data + sizeof(client_packet_type), sizeof(salt_t)) != 0) {
LOG_D("Wrong salt from " << peer->address);
host.disconnect(peer, disconnect_reason::WRONG_SALT);
return;
}
const auto type = static_cast<client_packet_type>(*packet->data);
switch (type) {
case client_packet_type::MOVE: {
if(voxel_pos pos; !PacketReader(packet).read(pos) ||
!movePlayer(Server::GetPeerData<net_client>(peer)->instanceId, pos)) {
LOG_T("Bad move");
}
break;
}
case client_packet_type::FILL_SHAPE: {
if(const auto fill = PacketReader(packet).read<world::action::FillShape>()) {
//TODO: check ray
//TODO: check entities
//TODO: handle inventory
if (fill->shape == world::action::Shape::Cube)
setCube(fill->pos, fill->val, fill->radius);
else
setSphere(fill->pos, fill->val, fill->radius);
} else {
LOG_T("Bad fill");
}
break;
}
case client_packet_type::MESSAGE: {
const auto ref = PacketReader(packet).remaning();
broadcastMessage("Player" + std::to_string(Server::GetPeerData<net_client>(peer)->instanceId.index)
+ ": " + std::string(static_cast<const char *>(ref.data()), ref.size()));
break;
}
case client_packet_type::MISSING_CHUNKS: {
if (auto player = findEntity(PLAYER_ENTITY_ID,Server::GetPeerData<net_client>(peer)->instanceId )) {
const auto pos = player->pos.as_voxel();
auto reader = PacketReader(packet);
area_id id = *reader.read<area_id>();
if(auto area = areas.find(id); area != areas.end()) {
auto &chunks = area->second->getChunks();
const chunk_pos diff = glm::divide(pos - area->second->getOffset().as_voxel());
while(!reader.isFull()) {
chunk_pos cpos = *reader.read<chunk_pos>();
if(glm::length2(diff - cpos) <= glm::pow2(loadDistance) && chunks.inRange(cpos)) {
if(auto chunk = chunks.find(cpos); chunk != chunks.end()) {
host.send(peer, serializeChunk({std::make_pair(id, cpos), std::dynamic_pointer_cast<Chunk>(chunk->second)}), net::channel_type::RELIABLE);
}
} else {
LOG_T("Request out of range chunk");
}
}
} else {
LOG_T("Bad chunk request");
}
}
break;
}
default:
LOG_T("Bad packet from " << peer->address);
break;
}
});
}
void Universe::broadcastAreas() {
constexpr size_t ITEM_SIZE = sizeof(area_id) + sizeof(world::Area::params);
auto packet = net::Server::makePacket(net::server_packet_type::AREAS, NULL, ITEM_SIZE * areas.size(), ENET_PACKET_FLAG_RELIABLE);
for(const auto& area: areas) {
const auto params = area.second->getParams();
packet.write(area.first);
packet.write(world::Area::params{params.center, params.radius, area.second->getCurvature()});
}
assert(packet.isFull());
host.broadcast(packet.get(), net::channel_type::RELIABLE);
}
net::packet_t* Universe::serializeChunk(const robin_hood::pair<area_<chunk_pos>, std::shared_ptr<Chunk>> &pair) {
std::ostringstream out;
pair.second->write(out);
std::vector<char> buffer;
dict_write_ctx.compress(out.str(), buffer);
auto packet = net::Server::makePacket(net::server_packet_type::CHUNK, NULL, sizeof(pair.first) + buffer.size(), ENET_PACKET_FLAG_RELIABLE);
packet.write(pair.first);
packet.write(buffer.data(), buffer.size());
assert(packet.isFull());
return packet.get();
}
void Universe::broadcastMessage(const std::string& text) {
host.broadcast(net::server_packet_type::MESSAGE, text.data(), text.size(), net::channel_type::RELIABLE);
}
void Universe::updateChunk(area_map::iterator &, world::ChunkContainer::iterator &, chunk_pos, float /*deltaTime*/) {}
void Universe::loadChunk(area_<chunk_pos>, chunk_pos, const world::ChunkContainer &) {}
void Universe::setOptions(const Universe::options& options) {
loadDistance = options.loadDistance;
keepDistance = options.keepDistance;
}
Universe::ray_result Universe::raycast(const geometry::Ray &ray) const {
return Raycast(ray, areas);
}
std::optional<world::Item> Universe::set(const area_<voxel_pos>& pos, const Voxel& val) {
if(const auto it = areas.find(pos.first); it != areas.end()) {
auto &chunks = it->second->setChunks();
const auto split = glm::splitIdx(pos.second);
if(chunks.inRange(split.first))
if(const auto chunk = chunks.findInRange(split.first))
return {std::dynamic_pointer_cast<Chunk>(chunk.value())->replace(split.second, val)};
}
return {};
}
world::ItemList Universe::setCube(const area_<voxel_pos>& pos, const Voxel& val, int radius) {
ZoneScopedN("Fill");
ItemList list;
if(const auto it = areas.find(pos.first); it != areas.end()) {
robin_hood::unordered_map<chunk_pos, std::vector<Chunk::Edit>> edits;
auto &chunks = it->second->setChunks();
for (int z = -radius; z <= radius; z++) {
for (int y = -radius; y <= radius; y++) {
for (int x = -radius; x <= radius; x++) {
//TODO: list.pop(val)
const auto offset = voxel_pos(x, y, z);
const auto split = glm::splitIdx(pos.second + offset);
if(chunks.inRange(split.first))
if(const auto chunk = it->second->setChunks().findInRange(split.first)) {
auto ck = std::dynamic_pointer_cast<Chunk>(chunk.value());
auto prev = ck->get(split.second);
if(prev.value != val.value) {
//TODO: apply break table
//TODO: inventory
const auto delay = glm::length2(offset) / radius * .05f;
edits[split.first].push_back(Chunk::Edit{split.second, val, delay});
ck->replace(split.second, val, delay);
}
}
}}}
ZoneScopedN("Packet");
size_t size = sizeof(area_id);
for(const auto& part: edits) {
size += sizeof(chunk_pos);
size += sizeof(chunk_voxel_idx);
size += sizeof(Chunk::Edit) * part.second.size();
}
auto packet = net::Server::makePacket(net::server_packet_type::EDITS, NULL, size, 0);
packet.write(pos.first);
for(const auto& part: edits) {
packet.write(part.first);
packet.write<chunk_voxel_idx>(part.second.size());
packet.write(part.second.data(), part.second.size() * sizeof(Chunk::Edit));
}
assert(packet.isFull());
host.broadcast(packet.get(), net::channel_type::NOTIFY);
}
return list;
}
world::ItemList Universe::setSphere(const area_<voxel_pos>& pos, const Voxel& val, int radius) {
ZoneScopedN("FillSphere");
ItemList list;
if(const auto it = areas.find(pos.first); it != areas.end()) {
robin_hood::unordered_map<chunk_pos, std::vector<Chunk::Edit>> edits;
auto &chunks = it->second->setChunks();
for (int z = -radius; z <= radius; z++) {
for (int y = -radius; y <= radius; y++) {
for (int x = -radius; x <= radius; x++) {
const auto offset = voxel_pos(x, y, z);
//FIXME: refactor with voxel_pos iterator
if (glm::length2(offset) > glm::pow2(radius))
continue;
//TODO: list.pop(val)
const auto split = glm::splitIdx(pos.second + offset);
if(chunks.inRange(split.first))
if(const auto chunk = it->second->setChunks().findInRange(split.first)) {
auto ck = std::dynamic_pointer_cast<Chunk>(chunk.value());
auto prev = ck->get(split.second);
if(prev.value != val.value) {
//TODO: apply break table
//TODO: inventory
const auto delay = glm::length2(offset) / radius * .05f;
edits[split.first].push_back(Chunk::Edit{split.second, val, delay});
ck->replace(split.second, val, delay);
}
}
}}}
ZoneScopedN("Packet");
size_t size = sizeof(area_id);
for(const auto& part: edits) {
size += sizeof(chunk_pos);
size += sizeof(chunk_voxel_idx);
size += sizeof(Chunk::Edit) * part.second.size();
}
auto packet = net::Server::makePacket(net::server_packet_type::EDITS, NULL, size, 0);
packet.write(pos.first);
for(const auto& part: edits) {
packet.write(part.first);
packet.write<chunk_voxel_idx>(part.second.size());
packet.write(part.second.data(), part.second.size() * sizeof(Chunk::Edit));
}
assert(packet.isFull());
host.broadcast(packet.get(), net::channel_type::NOTIFY);
}
return list;
}
bool Universe::collide_end(const glm::ifvec3 &pos, const glm::vec3 &vel, int density, float radius) const {
return std::holds_alternative<ray_target>(raycast(geometry::Ray((pos + vel) * density, vel, radius)));
}
bool Universe::collide_point(const glm::ifvec3 &pos, const glm::vec3 &vel, int density) const {
const auto target = ((pos + vel) * density).as_voxel();
for(auto& area: areas) {
if(area.second->getBounding().contains(target)) {
const auto &offset = area.second->getOffset().as_voxel();
const auto &chunks = area.second->getChunks();
const auto pos = target - offset;
const chunk_pos cPos = glm::divide(pos);
if (const auto it = chunks.find(cPos); it != chunks.end()) {
const auto voxel = it->second->getAt(glm::modulo(pos));
if (voxel.is_solid()) {
return true;
}
} else if(chunks.inRange(cPos)) {
return true;
}
}
}
return false;
}
entity_instance_id Universe::addEntity(entity_id type, const Entity::Instance &instance) {
return std::make_pair(type, entities.at(type).instances.push(instance));
}
Universe::Entity::Instance* Universe::findEntity(entity_id type, entity_id id) {
if(!entities.contains(type))
return nullptr;
if(!entities.at(type).instances.contains(id))
return nullptr;
return &entities.at(type).instances.at(id);
}
bool Universe::movePlayer(data::generational::id id, glm::ifvec3 pos) {
if (auto player = findEntity(PLAYER_ENTITY_ID, id)) {
const auto initialPos = player->pos.as_voxel();
if (initialPos == pos.as_voxel())
return true;
//TODO: check dist + collision from a to b
movedPlayers.insert(id);
player->pos = pos;
return true;
} else
return false;
}
std::shared_ptr<Chunk> Universe::createChunk(const chunk_pos &pos, const std::unique_ptr<generator::Abstract> &rnd) const {
return std::make_shared<Chunk>(pos, rnd);
}
std::shared_ptr<Chunk> Universe::createChunk(std::istream &str) const {
return std::make_shared<Chunk>(str);
}