346 lines
27 KiB
C++
346 lines
27 KiB
C++
#include "MetaCoreScene/MetaCoreSceneSerializer.h"
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#include "MetaCoreFoundation/MetaCoreReflection.h"
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#include <nlohmann/json.hpp>
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#include <fstream>
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#include <iostream>
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#include <sstream>
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using json = nlohmann::json;
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namespace MetaCore {
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// 辅助方法：将 glm::vec3 序列化为 JSON 数组 [x, y, z]
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static json Vec3ToJson(const glm::vec3& vec) {
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return { vec.x, vec.y, vec.z };
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}
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// 辅助方法：从 JSON 数组 [x, y, z] 反序列化出 glm::vec3
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static glm::vec3 JsonToVec3(const json& j) {
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if (j.is_array() && j.size() >= 3) {
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return glm::vec3(j[0].get<float>(), j[1].get<float>(), j[2].get<float>());
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}
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return glm::vec3(0.0f);
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}
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// 辅助方法：将 MetaCoreAssetGuid 转换为 String，方便文本化存储
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static std::string GuidToString(const MetaCoreAssetGuid& guid) {
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return guid.IsValid() ? guid.ToString() : "";
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}
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// 辅助方法：从 String 反解析为 MetaCoreAssetGuid
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static MetaCoreAssetGuid StringToGuid(const std::string& str) {
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return str.empty() ? MetaCoreAssetGuid{} : MetaCoreAssetGuid::Parse(str).value_or(MetaCoreAssetGuid{});
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}
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bool MetaCoreSceneSerializer::SaveSceneToJson(
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const std::filesystem::path& absolutePath,
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const MetaCoreSceneDocument& sceneDocument,
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const MetaCoreTypeRegistry& registry
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) {
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try {
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json sceneJson;
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// 验证 MetaCoreSceneDocument 反射注册
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const MetaCoreStructDescriptor* sceneDesc = registry.FindStruct<MetaCoreSceneDocument>();
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if (!sceneDesc) {
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std::cerr << "SaveSceneToJson: 未能找到 MetaCoreSceneDocument 反射描述" << std::endl;
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return false;
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}
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for (const auto& field : sceneDesc->Fields) {
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if (field.Name == "Name") {
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sceneJson["SceneName"] = sceneDocument.Name;
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} else if (field.Name == "Selection") {
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const MetaCoreStructDescriptor* selDesc = registry.FindStruct<MetaCoreEditorSelectionSnapshot>();
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if (selDesc) {
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json selJson = json::object();
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for (const auto& selField : selDesc->Fields) {
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if (selField.Name == "SelectedObjectIds") selJson["SelectedObjectIds"] = sceneDocument.Selection.SelectedObjectIds;
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else if (selField.Name == "ActiveObjectId") selJson["ActiveObjectId"] = sceneDocument.Selection.ActiveObjectId;
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else if (selField.Name == "SelectionAnchorId") selJson["SelectionAnchorId"] = sceneDocument.Selection.SelectionAnchorId;
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}
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sceneJson["Selection"] = selJson;
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}
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} else if (field.Name == "GameObjects") {
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json gameObjectsArray = json::array();
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const MetaCoreStructDescriptor* objDesc = registry.FindStruct<MetaCoreGameObjectData>();
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if (objDesc) {
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for (const auto& obj : sceneDocument.GameObjects) {
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json objJson = json::object();
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for (const auto& objField : objDesc->Fields) {
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if (objField.Name == "Id") {
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objJson["Id"] = obj.Id;
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} else if (objField.Name == "ParentId") {
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objJson["ParentId"] = obj.ParentId;
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} else if (objField.Name == "Name") {
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objJson["Name"] = obj.Name;
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} else if (objField.Name == "Transform") {
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const MetaCoreStructDescriptor* transDesc = registry.FindStruct<MetaCoreTransformComponent>();
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if (transDesc) {
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json transJson = json::object();
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for (const auto& transField : transDesc->Fields) {
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if (transField.Name == "Position") transJson["Position"] = Vec3ToJson(obj.Transform.Position);
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else if (transField.Name == "RotationEulerDegrees") transJson["RotationEulerDegrees"] = Vec3ToJson(obj.Transform.RotationEulerDegrees);
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else if (transField.Name == "Scale") transJson["Scale"] = Vec3ToJson(obj.Transform.Scale);
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}
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objJson["Transform"] = transJson;
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}
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} else if (objField.Name == "MeshRenderer" && obj.MeshRenderer.has_value()) {
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const MetaCoreStructDescriptor* meshDesc = registry.FindStruct<MetaCoreMeshRendererComponent>();
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if (meshDesc) {
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json meshJson = json::object();
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const auto& mesh = obj.MeshRenderer.value();
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for (const auto& meshField : meshDesc->Fields) {
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if (meshField.Name == "MeshSource") meshJson["MeshSource"] = static_cast<int>(mesh.MeshSource);
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else if (meshField.Name == "BuiltinMesh") meshJson["BuiltinMesh"] = static_cast<int>(mesh.BuiltinMesh);
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else if (meshField.Name == "MeshAssetGuid") meshJson["MeshAssetGuid"] = GuidToString(mesh.MeshAssetGuid);
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else if (meshField.Name == "MaterialAssetGuids") {
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json matGuids = json::array();
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for (const auto& guid : mesh.MaterialAssetGuids) {
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matGuids.push_back(GuidToString(guid));
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}
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meshJson["MaterialAssetGuids"] = matGuids;
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}
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else if (meshField.Name == "SourceModelAssetGuid") meshJson["SourceModelAssetGuid"] = GuidToString(mesh.SourceModelAssetGuid);
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else if (meshField.Name == "SourceModelPath") meshJson["SourceModelPath"] = mesh.SourceModelPath;
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else if (meshField.Name == "SourceNodePath") meshJson["SourceNodePath"] = mesh.SourceNodePath;
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else if (meshField.Name == "BaseColorTextureGuid") meshJson["BaseColorTextureGuid"] = GuidToString(mesh.BaseColorTextureGuid);
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else if (meshField.Name == "MetallicRoughnessTextureGuid") meshJson["MetallicRoughnessTextureGuid"] = GuidToString(mesh.MetallicRoughnessTextureGuid);
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else if (meshField.Name == "NormalTextureGuid") meshJson["NormalTextureGuid"] = GuidToString(mesh.NormalTextureGuid);
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else if (meshField.Name == "EmissiveTextureGuid") meshJson["EmissiveTextureGuid"] = GuidToString(mesh.EmissiveTextureGuid);
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else if (meshField.Name == "AoTextureGuid") meshJson["AoTextureGuid"] = GuidToString(mesh.AoTextureGuid);
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else if (meshField.Name == "BaseColorTexturePath") meshJson["BaseColorTexturePath"] = mesh.BaseColorTexturePath;
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else if (meshField.Name == "MetallicRoughnessTexturePath") meshJson["MetallicRoughnessTexturePath"] = mesh.MetallicRoughnessTexturePath;
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else if (meshField.Name == "NormalTexturePath") meshJson["NormalTexturePath"] = mesh.NormalTexturePath;
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else if (meshField.Name == "EmissiveTexturePath") meshJson["EmissiveTexturePath"] = mesh.EmissiveTexturePath;
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else if (meshField.Name == "AoTexturePath") meshJson["AoTexturePath"] = mesh.AoTexturePath;
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else if (meshField.Name == "DoubleSided") meshJson["DoubleSided"] = mesh.DoubleSided;
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else if (meshField.Name == "Metallic") meshJson["Metallic"] = mesh.Metallic;
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else if (meshField.Name == "Roughness") meshJson["Roughness"] = mesh.Roughness;
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else if (meshField.Name == "AlphaMode") meshJson["AlphaMode"] = static_cast<int>(mesh.AlphaMode);
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else if (meshField.Name == "AlphaCutoff") meshJson["AlphaCutoff"] = mesh.AlphaCutoff;
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else if (meshField.Name == "EmissiveColor") meshJson["EmissiveColor"] = Vec3ToJson(mesh.EmissiveColor);
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else if (meshField.Name == "BaseColor") meshJson["BaseColor"] = Vec3ToJson(mesh.BaseColor);
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else if (meshField.Name == "ModelNodeIndex") meshJson["ModelNodeIndex"] = mesh.ModelNodeIndex;
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else if (meshField.Name == "SubMeshIndex") meshJson["SubMeshIndex"] = mesh.SubMeshIndex;
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else if (meshField.Name == "Visible") meshJson["Visible"] = mesh.Visible;
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}
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objJson["MeshRenderer"] = meshJson;
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}
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} else if (objField.Name == "Light" && obj.Light.has_value()) {
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const MetaCoreStructDescriptor* lightDesc = registry.FindStruct<MetaCoreLightComponent>();
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if (lightDesc) {
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json lightJson = json::object();
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for (const auto& lightField : lightDesc->Fields) {
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if (lightField.Name == "Color") lightJson["Color"] = Vec3ToJson(obj.Light->Color);
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else if (lightField.Name == "Intensity") lightJson["Intensity"] = obj.Light->Intensity;
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}
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objJson["Light"] = lightJson;
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}
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} else if (objField.Name == "Camera" && obj.Camera.has_value()) {
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const MetaCoreStructDescriptor* camDesc = registry.FindStruct<MetaCoreCameraComponent>();
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if (camDesc) {
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json camJson = json::object();
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for (const auto& camField : camDesc->Fields) {
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if (camField.Name == "FieldOfViewDegrees") camJson["FieldOfViewDegrees"] = obj.Camera->FieldOfViewDegrees;
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else if (camField.Name == "NearClip") camJson["NearClip"] = obj.Camera->NearClip;
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else if (camField.Name == "FarClip") camJson["FarClip"] = obj.Camera->FarClip;
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else if (camField.Name == "IsPrimary") camJson["IsPrimary"] = obj.Camera->IsPrimary;
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}
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objJson["Camera"] = camJson;
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}
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} else if (objField.Name == "PrefabInstance" && obj.PrefabInstance.has_value()) {
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const MetaCoreStructDescriptor* prefabDesc = registry.FindStruct<MetaCorePrefabInstanceMetadata>();
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if (prefabDesc) {
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json prefabJson = json::object();
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for (const auto& prefabField : prefabDesc->Fields) {
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if (prefabField.Name == "PrefabAssetGuid") prefabJson["PrefabAssetGuid"] = GuidToString(obj.PrefabInstance->PrefabAssetGuid);
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else if (prefabField.Name == "PrefabObjectId") prefabJson["PrefabObjectId"] = obj.PrefabInstance->PrefabObjectId;
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else if (prefabField.Name == "PrefabInstanceRootId") prefabJson["PrefabInstanceRootId"] = obj.PrefabInstance->PrefabInstanceRootId;
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}
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objJson["PrefabInstance"] = prefabJson;
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}
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}
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}
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gameObjectsArray.push_back(objJson);
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}
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}
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sceneJson["GameObjects"] = gameObjectsArray;
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}
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}
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std::ofstream file(absolutePath);
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if (!file.is_open()) {
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std::cerr << "SaveSceneToJson: 无法打开文件写入 " << absolutePath << std::endl;
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return false;
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}
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file << sceneJson.dump(4);
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return true;
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} catch (const std::exception& e) {
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std::cerr << "SaveSceneToJson: 发生异常 - " << e.what() << std::endl;
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return false;
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}
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}
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std::optional<MetaCoreSceneDocument> MetaCoreSceneSerializer::LoadSceneFromJson(
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const std::filesystem::path& absolutePath,
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const MetaCoreTypeRegistry& registry
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) {
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try {
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std::ifstream file(absolutePath);
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if (!file.is_open()) {
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std::cerr << "LoadSceneFromJson: 无法打开文件进行读取 " << absolutePath << std::endl;
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return std::nullopt;
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}
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json sceneJson;
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file >> sceneJson;
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MetaCoreSceneDocument sceneDocument;
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// 验证 MetaCoreSceneDocument 反射注册
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const MetaCoreStructDescriptor* sceneDesc = registry.FindStruct<MetaCoreSceneDocument>();
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if (!sceneDesc) {
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std::cerr << "LoadSceneFromJson: 未能找到 MetaCoreSceneDocument 反射描述" << std::endl;
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return std::nullopt;
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}
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for (const auto& field : sceneDesc->Fields) {
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if (field.Name == "Name" && sceneJson.contains("SceneName")) {
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sceneDocument.Name = sceneJson["SceneName"].get<std::string>();
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} else if (field.Name == "Selection" && sceneJson.contains("Selection")) {
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const auto& selectionJson = sceneJson["Selection"];
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const MetaCoreStructDescriptor* selDesc = registry.FindStruct<MetaCoreEditorSelectionSnapshot>();
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if (selDesc) {
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for (const auto& selField : selDesc->Fields) {
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if (selField.Name == "SelectedObjectIds" && selectionJson.contains("SelectedObjectIds")) {
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sceneDocument.Selection.SelectedObjectIds = selectionJson["SelectedObjectIds"].get<std::vector<MetaCoreId>>();
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} else if (selField.Name == "ActiveObjectId" && selectionJson.contains("ActiveObjectId")) {
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sceneDocument.Selection.ActiveObjectId = selectionJson["ActiveObjectId"].get<MetaCoreId>();
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} else if (selField.Name == "SelectionAnchorId" && selectionJson.contains("SelectionAnchorId")) {
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sceneDocument.Selection.SelectionAnchorId = selectionJson["SelectionAnchorId"].get<MetaCoreId>();
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}
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}
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}
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} else if (field.Name == "GameObjects" && sceneJson.contains("GameObjects") && sceneJson["GameObjects"].is_array()) {
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const MetaCoreStructDescriptor* objDesc = registry.FindStruct<MetaCoreGameObjectData>();
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if (objDesc) {
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for (const auto& objJson : sceneJson["GameObjects"]) {
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MetaCoreGameObjectData obj;
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for (const auto& objField : objDesc->Fields) {
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if (objField.Name == "Id" && objJson.contains("Id")) {
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obj.Id = objJson["Id"].get<MetaCoreId>();
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} else if (objField.Name == "ParentId" && objJson.contains("ParentId")) {
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obj.ParentId = objJson["ParentId"].get<MetaCoreId>();
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} else if (objField.Name == "Name" && objJson.contains("Name")) {
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obj.Name = objJson["Name"].get<std::string>();
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} else if (objField.Name == "Transform" && objJson.contains("Transform")) {
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const auto& transJson = objJson["Transform"];
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const MetaCoreStructDescriptor* transDesc = registry.FindStruct<MetaCoreTransformComponent>();
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if (transDesc) {
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for (const auto& transField : transDesc->Fields) {
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if (transField.Name == "Position" && transJson.contains("Position")) {
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obj.Transform.Position = JsonToVec3(transJson["Position"]);
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} else if (transField.Name == "RotationEulerDegrees" && transJson.contains("RotationEulerDegrees")) {
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obj.Transform.RotationEulerDegrees = JsonToVec3(transJson["RotationEulerDegrees"]);
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} else if (transField.Name == "Scale" && transJson.contains("Scale")) {
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obj.Transform.Scale = JsonToVec3(transJson["Scale"]);
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}
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}
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}
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} else if (objField.Name == "MeshRenderer" && objJson.contains("MeshRenderer")) {
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const auto& meshJson = objJson["MeshRenderer"];
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const MetaCoreStructDescriptor* meshDesc = registry.FindStruct<MetaCoreMeshRendererComponent>();
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if (meshDesc) {
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MetaCoreMeshRendererComponent mesh;
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for (const auto& meshField : meshDesc->Fields) {
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if (meshField.Name == "MeshSource" && meshJson.contains("MeshSource")) mesh.MeshSource = static_cast<MetaCoreMeshSourceKind>(meshJson["MeshSource"].get<int>());
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else if (meshField.Name == "BuiltinMesh" && meshJson.contains("BuiltinMesh")) mesh.BuiltinMesh = static_cast<MetaCoreBuiltinMeshType>(meshJson["BuiltinMesh"].get<int>());
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else if (meshField.Name == "MeshAssetGuid" && meshJson.contains("MeshAssetGuid")) mesh.MeshAssetGuid = StringToGuid(meshJson["MeshAssetGuid"].get<std::string>());
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else if (meshField.Name == "MaterialAssetGuids" && meshJson.contains("MaterialAssetGuids") && meshJson["MaterialAssetGuids"].is_array()) {
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for (const auto& mGuidJson : meshJson["MaterialAssetGuids"]) {
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mesh.MaterialAssetGuids.push_back(StringToGuid(mGuidJson.get<std::string>()));
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}
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}
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else if (meshField.Name == "SourceModelAssetGuid" && meshJson.contains("SourceModelAssetGuid")) mesh.SourceModelAssetGuid = StringToGuid(meshJson["SourceModelAssetGuid"].get<std::string>());
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else if (meshField.Name == "SourceModelPath" && meshJson.contains("SourceModelPath")) mesh.SourceModelPath = meshJson["SourceModelPath"].get<std::string>();
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else if (meshField.Name == "SourceNodePath" && meshJson.contains("SourceNodePath")) mesh.SourceNodePath = meshJson["SourceNodePath"].get<std::string>();
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else if (meshField.Name == "BaseColorTextureGuid" && meshJson.contains("BaseColorTextureGuid")) mesh.BaseColorTextureGuid = StringToGuid(meshJson["BaseColorTextureGuid"].get<std::string>());
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else if (meshField.Name == "MetallicRoughnessTextureGuid" && meshJson.contains("MetallicRoughnessTextureGuid")) mesh.MetallicRoughnessTextureGuid = StringToGuid(meshJson["MetallicRoughnessTextureGuid"].get<std::string>());
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else if (meshField.Name == "NormalTextureGuid" && meshJson.contains("NormalTextureGuid")) mesh.NormalTextureGuid = StringToGuid(meshJson["NormalTextureGuid"].get<std::string>());
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else if (meshField.Name == "EmissiveTextureGuid" && meshJson.contains("EmissiveTextureGuid")) mesh.EmissiveTextureGuid = StringToGuid(meshJson["EmissiveTextureGuid"].get<std::string>());
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else if (meshField.Name == "AoTextureGuid" && meshJson.contains("AoTextureGuid")) mesh.AoTextureGuid = StringToGuid(meshJson["AoTextureGuid"].get<std::string>());
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else if (meshField.Name == "BaseColorTexturePath" && meshJson.contains("BaseColorTexturePath")) mesh.BaseColorTexturePath = meshJson["BaseColorTexturePath"].get<std::string>();
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else if (meshField.Name == "MetallicRoughnessTexturePath" && meshJson.contains("MetallicRoughnessTexturePath")) mesh.MetallicRoughnessTexturePath = meshJson["MetallicRoughnessTexturePath"].get<std::string>();
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else if (meshField.Name == "NormalTexturePath" && meshJson.contains("NormalTexturePath")) mesh.NormalTexturePath = meshJson["NormalTexturePath"].get<std::string>();
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else if (meshField.Name == "EmissiveTexturePath" && meshJson.contains("EmissiveTexturePath")) mesh.EmissiveTexturePath = meshJson["EmissiveTexturePath"].get<std::string>();
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else if (meshField.Name == "AoTexturePath" && meshJson.contains("AoTexturePath")) mesh.AoTexturePath = meshJson["AoTexturePath"].get<std::string>();
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else if (meshField.Name == "DoubleSided" && meshJson.contains("DoubleSided")) mesh.DoubleSided = meshJson["DoubleSided"].get<bool>();
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else if (meshField.Name == "Metallic" && meshJson.contains("Metallic")) mesh.Metallic = meshJson["Metallic"].get<float>();
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else if (meshField.Name == "Roughness" && meshJson.contains("Roughness")) mesh.Roughness = meshJson["Roughness"].get<float>();
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else if (meshField.Name == "AlphaMode" && meshJson.contains("AlphaMode")) mesh.AlphaMode = static_cast<MetaCoreMeshAlphaMode>(meshJson["AlphaMode"].get<int>());
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else if (meshField.Name == "AlphaCutoff" && meshJson.contains("AlphaCutoff")) mesh.AlphaCutoff = meshJson["AlphaCutoff"].get<float>();
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else if (meshField.Name == "EmissiveColor" && meshJson.contains("EmissiveColor")) mesh.EmissiveColor = JsonToVec3(meshJson["EmissiveColor"]);
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else if (meshField.Name == "BaseColor" && meshJson.contains("BaseColor")) mesh.BaseColor = JsonToVec3(meshJson["BaseColor"]);
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else if (meshField.Name == "ModelNodeIndex" && meshJson.contains("ModelNodeIndex")) mesh.ModelNodeIndex = meshJson["ModelNodeIndex"].get<std::int32_t>();
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else if (meshField.Name == "SubMeshIndex" && meshJson.contains("SubMeshIndex")) mesh.SubMeshIndex = meshJson["SubMeshIndex"].get<std::int32_t>();
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else if (meshField.Name == "Visible" && meshJson.contains("Visible")) mesh.Visible = meshJson["Visible"].get<bool>();
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}
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obj.MeshRenderer = mesh;
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}
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} else if (objField.Name == "Light" && objJson.contains("Light")) {
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const auto& lightJson = objJson["Light"];
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const MetaCoreStructDescriptor* lightDesc = registry.FindStruct<MetaCoreLightComponent>();
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if (lightDesc) {
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MetaCoreLightComponent light;
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for (const auto& lightField : lightDesc->Fields) {
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if (lightField.Name == "Color" && lightJson.contains("Color")) light.Color = JsonToVec3(lightJson["Color"]);
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else if (lightField.Name == "Intensity" && lightJson.contains("Intensity")) light.Intensity = lightJson["Intensity"].get<float>();
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}
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obj.Light = light;
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}
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} else if (objField.Name == "Camera" && objJson.contains("Camera")) {
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const auto& camJson = objJson["Camera"];
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const MetaCoreStructDescriptor* camDesc = registry.FindStruct<MetaCoreCameraComponent>();
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if (camDesc) {
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MetaCoreCameraComponent cam;
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for (const auto& camField : camDesc->Fields) {
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if (camField.Name == "FieldOfViewDegrees" && camJson.contains("FieldOfViewDegrees")) cam.FieldOfViewDegrees = camJson["FieldOfViewDegrees"].get<float>();
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else if (camField.Name == "NearClip" && camJson.contains("NearClip")) cam.NearClip = camJson["NearClip"].get<float>();
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else if (camField.Name == "FarClip" && camJson.contains("FarClip")) cam.FarClip = camJson["FarClip"].get<float>();
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else if (camField.Name == "IsPrimary" && camJson.contains("IsPrimary")) cam.IsPrimary = camJson["IsPrimary"].get<bool>();
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}
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obj.Camera = cam;
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}
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} else if (objField.Name == "PrefabInstance" && objJson.contains("PrefabInstance")) {
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const auto& prefabJson = objJson["PrefabInstance"];
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const MetaCoreStructDescriptor* prefabDesc = registry.FindStruct<MetaCorePrefabInstanceMetadata>();
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if (prefabDesc) {
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MetaCorePrefabInstanceMetadata prefab;
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for (const auto& prefabField : prefabDesc->Fields) {
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if (prefabField.Name == "PrefabAssetGuid" && prefabJson.contains("PrefabAssetGuid")) prefab.PrefabAssetGuid = StringToGuid(prefabJson["PrefabAssetGuid"].get<std::string>());
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else if (prefabField.Name == "PrefabObjectId" && prefabJson.contains("PrefabObjectId")) prefab.PrefabObjectId = prefabJson["PrefabObjectId"].get<MetaCoreId>();
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else if (prefabField.Name == "PrefabInstanceRootId" && prefabJson.contains("PrefabInstanceRootId")) prefab.PrefabInstanceRootId = prefabJson["PrefabInstanceRootId"].get<MetaCoreId>();
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}
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obj.PrefabInstance = prefab;
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}
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}
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}
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sceneDocument.GameObjects.push_back(obj);
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}
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}
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}
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}
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||
return sceneDocument;
|
||
} catch (const std::exception& e) {
|
||
std::cerr << "LoadSceneFromJson: 发生异常 - " << e.what() << std::endl;
|
||
return std::nullopt;
|
||
}
|
||
}
|
||
|
||
} // namespace MetaCore
|