352 lines
11 KiB
C++
352 lines
11 KiB
C++
#pragma once
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#include <cstdint>
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#include <Common/Abstract.hpp>
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#include <Common/Collide.hpp>
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#include <sha2.hpp>
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#include <string>
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#include <unordered_map>
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namespace LV::Server {
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// В одном регионе может быть максимум 2^16 сущностей. Клиенту адресуются сущности в формате <мир>+<позиция региона>+<uint16_t>
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// И если сущность перешла из одного региона в другой, идентификатор сущности на стороне клиента сохраняется
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using RegionEntityId_t = uint16_t;
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using ClientEntityId_t = RegionEntityId_t;
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using ServerEntityId_t = std::tuple<WorldId_t, Pos::GlobalRegion, RegionEntityId_t>;
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using RegionFuncEntityId_t = uint16_t;
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using ClientFuncEntityId_t = RegionFuncEntityId_t;
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using ServerFuncEntityId_t = std::tuple<WorldId_t, Pos::GlobalRegion, RegionFuncEntityId_t>;
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using MediaStreamId_t = uint16_t;
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using ContentBridgeId_t = ResourceId_t;
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using PlayerId_t = ResourceId_t;
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using DefGeneratorId_t = ResourceId_t;
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/*
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Сервер загружает информацию о локальных текстурах
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Пересмотр списка текстур?
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Динамичные текстуры?
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*/
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struct ResourceFile {
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using Hash_t = sha2::sha256_hash; // boost::uuids::detail::sha1::digest_type;
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Hash_t Hash;
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std::vector<std::byte> Data;
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void calcHash() {
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Hash = sha2::sha256((const uint8_t*) Data.data(), Data.size());
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}
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};
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struct ServerTime {
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uint32_t Seconds : 24, Sub : 8;
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};
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struct VoxelCube_Region {
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union {
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struct {
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DefVoxelId_t VoxelId : 24, Meta : 8;
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};
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DefVoxelId_t Data = 0;
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};
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Pos::bvec1024u Left, Right; // TODO: заменить на позицию и размер
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auto operator<=>(const VoxelCube_Region& other) const {
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if (auto cmp = Left <=> other.Left; cmp != 0)
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return cmp;
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if (auto cmp = Right <=> other.Right; cmp != 0)
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return cmp;
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return Data <=> other.Data;
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}
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bool operator==(const VoxelCube_Region& other) const {
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return Left == other.Left && Right == other.Right && Data == other.Data;
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}
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};
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struct AABB {
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Pos::Object VecMin, VecMax;
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void sortMinMax() {
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Pos::Object::Type left, right;
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for(int iter = 0; iter < 3; iter++) {
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left = std::min(VecMin[iter], VecMax[iter]);
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right = std::max(VecMin[iter], VecMax[iter]);
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VecMin.set(iter, left);
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VecMax.set(iter, right);
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}
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}
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bool isCollideWith(const AABB &other, bool axis[3] = nullptr) {
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return calcBoxToBoxCollide(VecMin, VecMax, other.VecMin, other.VecMax, axis);
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}
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bool collideWithDelta(const AABB &other, const Pos::Object &my_speed, int32_t &delta, bool axis[3] = nullptr) {
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return calcBoxToBoxCollideWithDelta(VecMin, VecMax, other.VecMin, other.VecMax, my_speed, &delta, Pos::Object_t::BS, axis);
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}
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};
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struct LocalAABB {
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uint64_t x : 20, y : 20, z : 20;
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AABB atPos(const Pos::Object &pos) const {
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return {pos-Pos::Object(x/2, y/2, z/2), pos+Pos::Object(x/2, y/2, z/2)};
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}
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};
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struct CollisionAABB : public AABB {
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enum struct EnumType {
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Voxel, Node, Entity, FuncEntity, Barrier, Portal, Another
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} Type;
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union {
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struct {
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RegionEntityId_t Index;
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} Entity;
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struct {
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RegionFuncEntityId_t Index;
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} FuncEntity;
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struct {
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Pos::bvec4u Chunk;
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Pos::bvec16u Pos;
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} Node;
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struct {
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Pos::bvec4u Chunk;
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uint32_t Index;
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} Voxel;
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struct {
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} Barrier;
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struct {
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} Portal;
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struct {
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} Another;
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};
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bool Skip = false;
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};
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class Entity {
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DefEntityId_t DefId;
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public:
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LocalAABB ABBOX;
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// PosQuat
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DefWorldId_t WorldId;
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Pos::Object Pos, Speed, Acceleration;
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glm::quat Quat;
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static constexpr uint16_t HP_BS = 4096, HP_BS_Bit = 12;
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uint32_t HP = 0;
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Pos::GlobalRegion InRegionPos;
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// State
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std::unordered_map<std::string, float> Tags;
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// m_attached_particle_spawners
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// states
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bool
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// Сущность будет удалена в слудующем такте
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NeedRemove = false,
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// Сущность была удалена или не действительна
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IsRemoved = false;
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public:
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Entity(DefEntityId_t defId);
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AABB aabbAtPos() {
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return {Pos-Pos::Object(ABBOX.x/2, ABBOX.y/2, ABBOX.z/2), Pos+Pos::Object(ABBOX.x/2, ABBOX.y/2, ABBOX.z/2)};
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}
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DefEntityId_t getDefId() const { return DefId; }
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};
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template<typename Vec>
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struct VoxelCuboidsFuncs {
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// Кубы должны быть отсортированы
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static bool canMerge(const Vec& a, const Vec& b) {
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if (a.VoxelId != b.VoxelId) return false;
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// Проверяем, что кубы смежны по одной из осей
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bool xAdjacent = (a.Right.x == b.Left.x) && (a.Left.y == b.Left.y) && (a.Right.z == b.Right.z) && (a.Left.z == b.Left.z) && (a.Right.z == b.Right.z);
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bool yAdjacent = (a.Right.y == b.Left.y) && (a.Left.x == b.Left.x) && (a.Right.x == b.Right.x) && (a.Left.z == b.Left.z) && (a.Right.z == b.Right.z);
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bool zAdjacent = (a.Right.z == b.Left.z) && (a.Left.x == b.Left.x) && (a.Right.x == b.Right.x) && (a.Left.y == b.Left.y) && (a.Right.y == b.Right.y);
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return xAdjacent || yAdjacent || zAdjacent;
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}
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static Vec mergeCubes(const Vec& a, const Vec& b) {
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Vec merged;
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merged.VoxelId = a.VoxelId;
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// Объединяем кубы по минимальным и максимальным координатам
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merged.Left.x = std::min(a.Left.x, b.Left.x);
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merged.Left.y = std::min(a.Left.y, b.Left.y);
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merged.Left.z = std::min(a.Left.z, b.Left.z);
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merged.Right.x = std::max(a.Right.x, b.Right.x);
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merged.Right.y = std::max(a.Right.y, b.Right.y);
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merged.Right.z = std::max(a.Right.z, b.Right.z);
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return merged;
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}
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static std::vector<Vec> optimizeVoxelRegions(std::vector<Vec> regions) {
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bool changed;
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do {
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changed = false;
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for (size_t i = 0; i < regions.size(); ++i) {
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for (size_t j = i + 1; j < regions.size(); ++j) {
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if (canMerge(regions[i], regions[j])) {
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regions[i] = mergeCubes(regions[i], regions[j]);
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regions.erase(regions.begin() + j);
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changed = true;
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--j;
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}
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}
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}
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} while (changed);
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return regions;
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}
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static bool isCubesIntersect(const Vec& a, const Vec& b) {
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return !(a.Right.X < b.Left.X || a.Left.X > b.Right.X ||
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a.Right.Y < b.Left.Y || a.Left.Y > b.Right.Y ||
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a.Right.Z < b.Left.Z || a.Left.Z > b.Right.Z);
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}
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static std::vector<Vec> subtractCube(const Vec& a, const Vec& b) {
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std::vector<Vec> result;
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if (!isCubesIntersect(a, b)) {
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result.push_back(a);
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return result;
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}
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decltype(a.Left) intersectLeft = {
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std::max(a.Left.X, b.Left.X),
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std::max(a.Left.Y, b.Left.Y),
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std::max(a.Left.Z, b.Left.Z)
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};
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decltype(a.Left) intersectRight = {
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std::min(a.Right.X, b.Right.X),
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std::min(a.Right.Y, b.Right.Y),
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std::min(a.Right.Z, b.Right.Z)
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};
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// Разделяем куб a на меньшие кубы, исключая пересечение
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if (a.Left.X < intersectLeft.X) {
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result.push_back({a.Left, decltype(a.Left)(intersectLeft.X - 1, a.Right.Y, a.Right.Z), a.Material});
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}
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if (a.Right.X > intersectRight.X) {
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result.push_back({decltype(a.Left)(intersectRight.X + 1, a.Left.Y, a.Left.Z), a.Right, a.Material});
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}
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if (a.Left.Y < intersectLeft.Y) {
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result.push_back({
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{intersectLeft.X, a.Left.Y, a.Left.Z},
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decltype(a.Left)(intersectRight.X, intersectLeft.Y - 1, a.Right.Z),
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a.Material
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});
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}
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if (a.Right.Y > intersectRight.Y) {
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result.push_back({
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decltype(a.Left)(intersectLeft.X, intersectRight.Y + 1, a.Left.Z),
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{intersectRight.X, a.Right.Y, a.Right.Z},
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a.Material
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});
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}
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if (a.Left.Z < intersectLeft.Z) {
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result.push_back({
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{intersectLeft.X, intersectLeft.Y, a.Left.Z},
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decltype(a.Left)(intersectRight.X, intersectRight.Y, intersectLeft.Z - 1),
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a.Material
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});
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}
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if (a.Right.Z > intersectRight.Z) {
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result.push_back({
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decltype(a.Left)(intersectLeft.X, intersectLeft.Y, intersectRight.Z + 1),
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{intersectRight.X, intersectRight.Y, a.Right.Z},
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a.Material
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});
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}
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return result;
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}
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};
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inline void convertRegionVoxelsToChunks(const std::vector<VoxelCube_Region>& regions, std::unordered_map<Pos::bvec4u, std::vector<VoxelCube>> &chunks) {
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for (const auto& region : regions) {
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int minX = region.Left.x >> 8;
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int minY = region.Left.y >> 8;
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int minZ = region.Left.z >> 8;
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int maxX = region.Right.x >> 8;
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int maxY = region.Right.y >> 8;
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int maxZ = region.Right.z >> 8;
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for (int x = minX; x <= maxX; ++x) {
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for (int y = minY; y <= maxY; ++y) {
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for (int z = minZ; z <= maxZ; ++z) {
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Pos::bvec256u left {
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static_cast<uint8_t>(std::max<uint16_t>((x << 8), region.Left.x) - (x << 8)),
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static_cast<uint8_t>(std::max<uint16_t>((y << 8), region.Left.y) - (y << 8)),
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static_cast<uint8_t>(std::max<uint16_t>((z << 8), region.Left.z) - (z << 8))
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};
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Pos::bvec256u right {
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static_cast<uint8_t>(std::min<uint16_t>(((x+1) << 8)-1, region.Right.x) - (x << 8)),
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static_cast<uint8_t>(std::min<uint16_t>(((y+1) << 8)-1, region.Right.y) - (y << 8)),
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static_cast<uint8_t>(std::min<uint16_t>(((z+1) << 8)-1, region.Right.z) - (z << 8))
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};
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chunks[Pos::bvec4u(x, y, z)].push_back({
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region.VoxelId, region.Meta, left, right
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});
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}
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}
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}
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}
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}
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inline void convertChunkVoxelsToRegion(const std::unordered_map<Pos::bvec4u, std::vector<VoxelCube>> &chunks, std::vector<VoxelCube_Region> ®ions) {
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for(const auto& [pos, voxels] : chunks) {
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Pos::bvec1024u left = pos << 8;
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for (const auto& cube : voxels) {
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regions.push_back({
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cube.VoxelId, cube.Meta,
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Pos::bvec1024u(left.x+cube.Pos.x, left.y+cube.Pos.y, left.z+cube.Pos.z),
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Pos::bvec1024u(left.x+cube.Pos.x+cube.Size.x, left.y+cube.Pos.y+cube.Size.y, left.z+cube.Pos.z+cube.Size.z)
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});
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}
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}
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std::sort(regions.begin(), regions.end());
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regions = VoxelCuboidsFuncs<VoxelCube_Region>::optimizeVoxelRegions(regions);
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}
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} |