626 lines
23 KiB
C++
626 lines
23 KiB
C++
// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
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#include "SceneObjectsFactory.h"
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#include "Engine/Level/Actor.h"
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#include "Engine/Level/Prefabs/Prefab.h"
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#include "Engine/Content/Content.h"
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#include "Engine/Core/Log.h"
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#include "Engine/Scripting/Scripting.h"
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#include "Engine/Serialization/JsonTools.h"
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#include "Engine/Serialization/ISerializeModifier.h"
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#include "Engine/Serialization/SerializationFwd.h"
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#include "Engine/Serialization/JsonWriters.h"
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#include "Engine/Profiler/ProfilerCPU.h"
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#include "Engine/Threading/ThreadLocal.h"
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SceneObjectsFactory::Context::Context(ISerializeModifier* modifier)
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: Modifier(modifier)
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{
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}
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void SceneObjectsFactory::Context::SetupIdsMapping(const SceneObject* obj)
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{
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int32 instanceIndex;
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if (ObjectToInstance.TryGet(obj->GetID(), instanceIndex) && instanceIndex != CurrentInstance)
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{
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// Apply the current prefab instance objects ids table to resolve references inside a prefab properly
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CurrentInstance = instanceIndex;
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auto& instance = Instances[instanceIndex];
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for (auto& e : instance.IdsMapping)
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Modifier->IdsMapping[e.Key] = e.Value;
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}
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}
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SceneObject* SceneObjectsFactory::Spawn(Context& context, const ISerializable::DeserializeStream& stream)
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{
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// Get object id
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Guid id = JsonTools::GetGuid(stream, "ID");
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context.Modifier->IdsMapping.TryGet(id, id);
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if (!id.IsValid())
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{
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LOG(Warning, "Invalid object id.");
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return nullptr;
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}
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SceneObject* obj = nullptr;
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// Check for prefab instance
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Guid prefabObjectId;
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if (JsonTools::GetGuidIfValid(prefabObjectId, stream, "PrefabObjectID"))
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{
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// Get prefab asset id
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const Guid prefabId = JsonTools::GetGuid(stream, "PrefabID");
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if (!prefabId.IsValid())
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{
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LOG(Warning, "Invalid prefab id.");
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return nullptr;
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}
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// Load prefab
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auto prefab = Content::LoadAsync<Prefab>(prefabId);
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if (prefab == nullptr)
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{
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LOG(Warning, "Missing prefab with id={0}.", prefabId);
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return nullptr;
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}
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if (prefab->WaitForLoaded())
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{
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LOG(Warning, "Failed to load prefab {0}.", prefab->ToString());
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return nullptr;
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}
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// Get prefab object data from the prefab
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const ISerializable::DeserializeStream* prefabData;
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if (!prefab->ObjectsDataCache.TryGet(prefabObjectId, prefabData))
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{
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LOG(Warning, "Missing object {1} data in prefab {0}.", prefab->ToString(), prefabObjectId);
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return nullptr;
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}
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// Map prefab object ID to the deserialized instance ID
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context.Modifier->IdsMapping[prefabObjectId] = id;
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// Create prefab instance (recursive prefab loading to support nested prefabs)
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obj = Spawn(context, *prefabData);
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}
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else
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{
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const auto typeNameMember = stream.FindMember("TypeName");
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if (typeNameMember != stream.MemberEnd())
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{
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if (!typeNameMember->value.IsString())
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{
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LOG(Warning, "Invalid object type (TypeName must be an object type full name string).");
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return nullptr;
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}
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const StringAnsiView typeName(typeNameMember->value.GetStringAnsiView());
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const ScriptingTypeHandle type = Scripting::FindScriptingType(typeName);
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if (type)
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{
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// TODO: cache per-type result in Context to boost loading of the large scenes
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if (!SceneObject::TypeInitializer.IsAssignableFrom(type))
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{
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LOG(Warning, "Invalid scene object type {0} (inherits from: {1}).", type.ToString(true), type.GetType().GetBaseType().ToString());
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return nullptr;
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}
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const ScriptingObjectSpawnParams params(id, type);
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obj = (SceneObject*)type.GetType().Script.Spawn(params);
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if (obj == nullptr)
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{
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LOG(Warning, "Failed to spawn object of type {0}.", type.ToString(true));
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return nullptr;
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}
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}
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else
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{
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LOG(Warning, "Unknown object type '{0}', ID: {1}", String(typeName.Get(), typeName.Length()), id.ToString());
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return nullptr;
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}
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}
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else
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{
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// [Deprecated: 18.07.2019 expires 18.07.2020]
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const auto typeIdMember = stream.FindMember("TypeID");
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if (typeIdMember == stream.MemberEnd())
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{
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LOG(Warning, "Missing object type.");
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return nullptr;
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}
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if (typeIdMember->value.IsString())
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{
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// Script
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const char* scriptTypeName = typeIdMember->value.GetString();
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const ScriptingTypeHandle type = Scripting::FindScriptingType(scriptTypeName);
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if (type)
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{
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const ScriptingObjectSpawnParams params(id, type);
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obj = (SceneObject*)type.GetType().Script.Spawn(params);
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if (obj == nullptr)
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{
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LOG(Warning, "Failed to spawn object of type {0}.", type.ToString(true));
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return nullptr;
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}
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}
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else
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{
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LOG(Warning, "Failed to create script. Invalid type name '{0}'.", String(scriptTypeName));
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return nullptr;
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}
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}
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else if (typeIdMember->value.IsInt())
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{
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// Actor
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const int32 typeId = typeIdMember->value.GetInt();
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obj = CreateActor(typeId, id);
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}
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else
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{
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LOG(Warning, "Invalid object type.");
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}
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}
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}
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return obj;
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}
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void SceneObjectsFactory::Deserialize(Context& context, SceneObject* obj, ISerializable::DeserializeStream& stream)
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{
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#if ENABLE_ASSERTION
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CHECK(obj);
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#endif
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// Check for prefab instance
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Guid prefabObjectId;
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if (JsonTools::GetGuidIfValid(prefabObjectId, stream, "PrefabObjectID"))
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{
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// Get prefab asset id
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const Guid prefabId = JsonTools::GetGuid(stream, "PrefabID");
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if (!prefabId.IsValid())
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{
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LOG(Warning, "Invalid prefab id.");
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return;
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}
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// Load prefab
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auto prefab = Content::LoadAsync<Prefab>(prefabId);
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if (prefab == nullptr)
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{
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LOG(Warning, "Missing prefab with id={0}.", prefabId);
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return;
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}
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if (prefab->WaitForLoaded())
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{
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LOG(Warning, "Failed to load prefab {0}.", prefab->ToString());
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return;
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}
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// Get prefab object data from the prefab
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const ISerializable::DeserializeStream* prefabData;
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if (!prefab->ObjectsDataCache.TryGet(prefabObjectId, prefabData))
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{
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LOG(Warning, "Missing object {1} data in prefab {0}.", prefab->ToString(), prefabObjectId);
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return;
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}
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// Deserialize prefab data (recursive prefab loading to support nested prefabs)
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const auto prevVersion = context.Modifier->EngineBuild;
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context.Modifier->EngineBuild = prefab->DataEngineBuild;
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Deserialize(context, obj, *(ISerializable::DeserializeStream*)prefabData);
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context.Modifier->EngineBuild = prevVersion;
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}
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int32 instanceIndex;
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if (context.ObjectToInstance.TryGet(obj->GetID(), instanceIndex) && instanceIndex != context.CurrentInstance)
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{
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// Apply the current prefab instance objects ids table to resolve references inside a prefab properly
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context.CurrentInstance = instanceIndex;
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auto& instance = context.Instances[instanceIndex];
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for (auto& e : instance.IdsMapping)
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context.Modifier->IdsMapping[e.Key] = e.Value;
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}
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// Load data
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obj->Deserialize(stream, context.Modifier);
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}
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void SceneObjectsFactory::HandleObjectDeserializationError(const ISerializable::DeserializeStream& value)
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{
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// Print invalid object data contents
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rapidjson_flax::StringBuffer buffer;
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PrettyJsonWriter writer(buffer);
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value.Accept(writer.GetWriter());
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LOG(Warning, "Failed to deserialize scene object from data: {0}", String(buffer.GetString()));
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// Try to log some useful info about missing object (eg. it's parent name for faster fixing)
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const auto parentIdMember = value.FindMember("ParentID");
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if (parentIdMember != value.MemberEnd() && parentIdMember->value.IsString())
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{
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const Guid parentId = JsonTools::GetGuid(parentIdMember->value);
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Actor* parent = Scripting::FindObject<Actor>(parentId);
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if (parent)
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{
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LOG(Warning, "Parent actor of the missing object: {0}", parent->GetName());
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}
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}
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}
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Actor* SceneObjectsFactory::CreateActor(int32 typeId, const Guid& id)
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{
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// [Deprecated: 18.07.2019 expires 18.07.2020]
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// Convert deprecated typeId into actor type name
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StringAnsiView typeName;
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switch (typeId)
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{
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#define CASE(type, typeId) case typeId: typeName = type; break;
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CASE("FlaxEngine.StaticModel", 1);
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CASE("FlaxEngine.Camera", 2);
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CASE("FlaxEngine.EmptyActor", 3);
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CASE("FlaxEngine.DirectionalLight", 4);
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CASE("FlaxEngine.PointLight", 5);
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CASE("FlaxEngine.Skybox", 6);
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CASE("FlaxEngine.EnvironmentProbe", 7);
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CASE("FlaxEngine.BoxBrush", 8);
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CASE("FlaxEngine.Scene", 9);
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CASE("FlaxEngine.Sky", 10);
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CASE("FlaxEngine.RigidBody", 11);
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CASE("FlaxEngine.SpotLight", 12);
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CASE("FlaxEngine.PostFxVolume", 13);
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CASE("FlaxEngine.BoxCollider", 14);
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CASE("FlaxEngine.SphereCollider", 15);
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CASE("FlaxEngine.CapsuleCollider", 16);
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CASE("FlaxEngine.CharacterController", 17);
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CASE("FlaxEngine.FixedJoint", 18);
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CASE("FlaxEngine.DistanceJoint", 19);
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CASE("FlaxEngine.HingeJoint", 20);
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CASE("FlaxEngine.SliderJoint", 21);
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CASE("FlaxEngine.SphericalJoint", 22);
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CASE("FlaxEngine.D6Joint", 23);
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CASE("FlaxEngine.MeshCollider", 24);
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CASE("FlaxEngine.SkyLight", 25);
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CASE("FlaxEngine.ExponentialHeightFog", 26);
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CASE("FlaxEngine.TextRender", 27);
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CASE("FlaxEngine.AudioSource", 28);
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CASE("FlaxEngine.AudioListener", 29);
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CASE("FlaxEngine.AnimatedModel", 30);
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CASE("FlaxEngine.BoneSocket", 31);
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CASE("FlaxEngine.Decal", 32);
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CASE("FlaxEngine.UICanvas", 33);
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CASE("FlaxEngine.UIControl", 34);
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CASE("FlaxEngine.Terrain", 35);
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CASE("FlaxEngine.Foliage", 36);
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CASE("FlaxEngine.NavMeshBoundsVolume", 37);
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CASE("FlaxEngine.NavLink", 38);
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CASE("FlaxEngine.ParticleEffect", 39);
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#undef CASE
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default:
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LOG(Warning, "Unknown actor type id \'{0}\'", typeId);
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return nullptr;
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}
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const ScriptingTypeHandle type = Scripting::FindScriptingType(typeName);
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if (type)
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{
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const ScriptingObjectSpawnParams params(id, type);
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const auto result = dynamic_cast<Actor*>(type.GetType().Script.Spawn(params));
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if (result == nullptr)
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{
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LOG(Warning, "Failed to spawn object of type {0}.", type.ToString(true));
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return nullptr;
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}
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return result;
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}
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LOG(Warning, "Unknown actor type \'{0}\'", String(typeName.Get(), typeName.Length()));
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return nullptr;
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}
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SceneObjectsFactory::PrefabSyncData::PrefabSyncData(Array<SceneObject*>& sceneObjects, const ISerializable::DeserializeStream& data, ISerializeModifier* modifier)
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: SceneObjects(sceneObjects)
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, Data(data)
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, Modifier(modifier)
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, InitialCount(0)
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{
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}
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void SceneObjectsFactory::SetupPrefabInstances(Context& context, PrefabSyncData& data)
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{
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PROFILE_CPU_NAMED("SetupPrefabInstances");
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const int32 count = data.Data.Size();
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ASSERT(count <= data.SceneObjects.Count());
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for (int32 i = 0; i < count; i++)
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{
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SceneObject* obj = data.SceneObjects[i];
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if (!obj)
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continue;
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const auto& stream = data.Data[i];
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Guid prefabObjectId, prefabId;
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if (!JsonTools::GetGuidIfValid(prefabObjectId, stream, "PrefabObjectID"))
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continue;
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if (!JsonTools::GetGuidIfValid(prefabId, stream, "PrefabID"))
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continue;
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Guid parentId = JsonTools::GetGuid(stream, "ParentID");
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for (int32 j = i - 1; j >= 0; j--)
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{
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// Find instance ID of the parent to this object (use data in json for relationship)
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if (parentId == JsonTools::GetGuid(data.Data[j], "ID") && data.SceneObjects[j])
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{
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parentId = data.SceneObjects[j]->GetID();
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break;
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}
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}
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const Guid id = obj->GetID();
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auto prefab = Content::LoadAsync<Prefab>(prefabId);
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// Check if it's parent is in the same prefab
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int32 index;
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if (context.ObjectToInstance.TryGet(parentId, index) && context.Instances[index].Prefab == prefab)
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{
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// Use parent object as prefab instance
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}
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else
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{
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// Use new prefab instance
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index = context.Instances.Count();
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auto& e = context.Instances.AddOne();
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e.Prefab = prefab;
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e.RootId = id;
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}
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context.ObjectToInstance[id] = index;
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// Add to the prefab instance IDs mapping
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auto& prefabInstance = context.Instances[index];
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prefabInstance.IdsMapping[prefabObjectId] = id;
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}
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}
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void SceneObjectsFactory::SynchronizeNewPrefabInstances(Context& context, PrefabSyncData& data)
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{
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PROFILE_CPU_NAMED("SynchronizeNewPrefabInstances");
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Scripting::ObjectsLookupIdMapping.Set(&data.Modifier->IdsMapping);
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data.InitialCount = data.SceneObjects.Count();
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// Check all actors with prefab linkage for adding missing objects
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for (int32 i = 0; i < data.InitialCount; i++)
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{
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Actor* actor = dynamic_cast<Actor*>(data.SceneObjects[i]);
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if (!actor)
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continue;
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const auto& stream = data.Data[i];
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Guid actorId, actorPrefabObjectId, prefabId;
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if (!JsonTools::GetGuidIfValid(actorPrefabObjectId, stream, "PrefabObjectID"))
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continue;
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if (!JsonTools::GetGuidIfValid(prefabId, stream, "PrefabID"))
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continue;
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if (!JsonTools::GetGuidIfValid(actorId, stream, "ID"))
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continue;
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const Guid actorParentId = JsonTools::GetGuid(stream, "ParentID");
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// Map prefab object id to this actor so the new objects gets added to it
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data.Modifier->IdsMapping[actorPrefabObjectId] = actor->GetID();
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// Load prefab
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auto prefab = Content::LoadAsync<Prefab>(prefabId);
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if (prefab == nullptr)
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{
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LOG(Warning, "Missing prefab with id={0}.", prefabId);
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continue;
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}
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if (prefab->WaitForLoaded())
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{
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LOG(Warning, "Failed to load prefab {0}.", prefab->ToString());
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continue;
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}
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// Check for RemovedObjects list
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const auto removedObjects = SERIALIZE_FIND_MEMBER(stream, "RemovedObjects");
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// Check if the given actor has new children or scripts added (inside the prefab that it uses)
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// TODO: consider caching prefab objects structure maybe to boost this logic?
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for (auto it = prefab->ObjectsDataCache.Begin(); it.IsNotEnd(); ++it)
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{
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// Use only objects that are linked to the current actor
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const Guid parentId = JsonTools::GetGuid(*it->Value, "ParentID");
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if (parentId != actorPrefabObjectId)
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continue;
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// Skip if object was marked to be removed per instance
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const Guid prefabObjectId = JsonTools::GetGuid(*it->Value, "ID");
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if (removedObjects != stream.MemberEnd())
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{
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auto& list = removedObjects->value;
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const int32 size = static_cast<int32>(list.Size());
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bool removed = false;
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for (int32 j = 0; j < size; j++)
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{
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if (JsonTools::GetGuid(list[j]) == prefabObjectId)
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{
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removed = true;
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break;
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}
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}
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if (removed)
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continue;
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}
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// Use only objects that are missing
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bool spawned = false;
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for (int32 j = i + 1; j < data.InitialCount; j++)
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{
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const auto& jData = data.Data[j];
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const Guid jParentId = JsonTools::GetGuid(jData, "ParentID");
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//if (jParentId == actorParentId)
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// break;
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//if (jParentId != actorId)
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// continue;
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const Guid jPrefabObjectId = JsonTools::GetGuid(jData, "PrefabObjectID");
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if (jPrefabObjectId != prefabObjectId)
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continue;
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// This object exists in the saved scene objects list
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spawned = true;
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break;
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}
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if (spawned)
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continue;
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// Create instance (including all children)
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Scripting::ObjectsLookupIdMapping.Set(&data.Modifier->IdsMapping);
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SynchronizeNewPrefabInstance(context, data, prefab, actor, prefabObjectId);
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}
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}
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Scripting::ObjectsLookupIdMapping.Set(nullptr);
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}
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void SceneObjectsFactory::SynchronizePrefabInstances(Context& context, PrefabSyncData& data)
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{
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PROFILE_CPU_NAMED("SynchronizePrefabInstances");
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// Check all objects with prefab linkage for moving to a proper parent
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for (int32 i = 0; i < data.InitialCount; i++)
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{
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SceneObject* obj = data.SceneObjects[i];
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if (!obj)
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continue;
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SceneObject* parent = obj->GetParent();
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const Guid prefabId = obj->GetPrefabID();
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if (parent == nullptr || !obj->HasPrefabLink() || !parent->HasPrefabLink() || parent->GetPrefabID() != prefabId)
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continue;
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const Guid prefabObjectId = obj->GetPrefabObjectID();
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const Guid parentPrefabObjectId = parent->GetPrefabObjectID();
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// Load prefab
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auto prefab = Content::LoadAsync<Prefab>(prefabId);
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if (prefab == nullptr)
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{
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LOG(Warning, "Missing prefab with id={0}.", prefabId);
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continue;
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}
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if (prefab->WaitForLoaded())
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{
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LOG(Warning, "Failed to load prefab {0}.", prefab->ToString());
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continue;
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}
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// Get the actual parent object stored in the prefab data
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|
const ISerializable::DeserializeStream* objData;
|
|
Guid actualParentPrefabId;
|
|
if (!prefab->ObjectsDataCache.TryGet(prefabObjectId, objData) || !JsonTools::GetGuidIfValid(actualParentPrefabId, *objData, "ParentID"))
|
|
continue;
|
|
|
|
// Validate
|
|
if (actualParentPrefabId != parentPrefabObjectId)
|
|
{
|
|
// Invalid connection object found!
|
|
LOG(Info, "Object {0} has invalid parent object {4} -> {5} (PrefabObjectID: {1}, PrefabID: {2}, Path: {3})", obj->GetSceneObjectId(), prefabObjectId, prefab->GetID(), prefab->GetPath(), parentPrefabObjectId, actualParentPrefabId);
|
|
|
|
// Map actual prefab object id to the current scene objects collection
|
|
context.SetupIdsMapping(obj);
|
|
data.Modifier->IdsMapping.TryGet(actualParentPrefabId, actualParentPrefabId);
|
|
|
|
// Find parent
|
|
const auto actualParent = Scripting::FindObject<Actor>(actualParentPrefabId);
|
|
if (!actualParent)
|
|
{
|
|
LOG(Warning, "The actual parent is missing.");
|
|
continue;
|
|
}
|
|
|
|
// Reparent
|
|
obj->SetParent(actualParent, false);
|
|
}
|
|
|
|
// Preserve order in parent (values from prefab are used)
|
|
if (i != 0)
|
|
{
|
|
const auto defaultInstance = prefab->GetDefaultInstance(obj->GetPrefabObjectID());
|
|
if (defaultInstance)
|
|
{
|
|
obj->SetOrderInParent(defaultInstance->GetOrderInParent());
|
|
}
|
|
}
|
|
}
|
|
|
|
Scripting::ObjectsLookupIdMapping.Set(&data.Modifier->IdsMapping);
|
|
|
|
// Synchronize new prefab objects
|
|
for (int32 i = 0; i < data.NewObjects.Count(); i++)
|
|
{
|
|
SceneObject* obj = data.SceneObjects[data.InitialCount + i];
|
|
auto& newObj = data.NewObjects[i];
|
|
|
|
// Deserialize object with prefab data
|
|
Deserialize(context, obj, *(ISerializable::DeserializeStream*)newObj.PrefabData);
|
|
obj->LinkPrefab(newObj.Prefab->GetID(), newObj.PrefabObjectId);
|
|
|
|
// Preserve order in parent (values from prefab are used)
|
|
const auto defaultInstance = newObj.Prefab->GetDefaultInstance(newObj.PrefabObjectId);
|
|
if (defaultInstance)
|
|
{
|
|
obj->SetOrderInParent(defaultInstance->GetOrderInParent());
|
|
}
|
|
}
|
|
|
|
Scripting::ObjectsLookupIdMapping.Set(nullptr);
|
|
}
|
|
|
|
void SceneObjectsFactory::SynchronizeNewPrefabInstance(Context& context, PrefabSyncData& data, Prefab* prefab, Actor* actor, const Guid& prefabObjectId)
|
|
{
|
|
PROFILE_CPU_NAMED("SynchronizeNewPrefabInstance");
|
|
|
|
// Missing object found!
|
|
LOG(Info, "Actor {0} has missing child object (PrefabObjectID: {1}, PrefabID: {2}, Path: {3})", actor->ToString(), prefabObjectId, prefab->GetID(), prefab->GetPath());
|
|
|
|
// Get prefab object data from the prefab
|
|
const ISerializable::DeserializeStream* prefabData;
|
|
if (!prefab->ObjectsDataCache.TryGet(prefabObjectId, prefabData))
|
|
{
|
|
LOG(Warning, "Missing object {1} data in prefab {0}.", prefab->ToString(), prefabObjectId);
|
|
return;
|
|
}
|
|
|
|
// Map prefab object ID to the new prefab object instance
|
|
Guid id = Guid::New();
|
|
data.Modifier->IdsMapping[prefabObjectId] = id;
|
|
|
|
// Create prefab instance (recursive prefab loading to support nested prefabs)
|
|
auto child = Spawn(context, *prefabData);
|
|
if (!child)
|
|
{
|
|
LOG(Warning, "Failed to create object {1} from prefab {0}.", prefab->ToString(), prefabObjectId);
|
|
return;
|
|
}
|
|
|
|
// Register object
|
|
child->RegisterObject();
|
|
data.SceneObjects.Add(child);
|
|
auto& newObj = data.NewObjects.AddOne();
|
|
newObj.Prefab = prefab;
|
|
newObj.PrefabData = prefabData;
|
|
newObj.PrefabObjectId = prefabObjectId;
|
|
newObj.Id = id;
|
|
int32 instanceIndex = -1;
|
|
if (context.ObjectToInstance.TryGet(actor->GetID(), instanceIndex) && context.Instances[instanceIndex].Prefab == prefab)
|
|
{
|
|
// Add to the prefab instance IDs mapping
|
|
context.ObjectToInstance[id] = instanceIndex;
|
|
auto& prefabInstance = context.Instances[instanceIndex];
|
|
prefabInstance.IdsMapping[prefabObjectId] = id;
|
|
}
|
|
|
|
// Use loop to add even more objects to added objects (prefab can have one new object that has another child, we need to add that child)
|
|
// TODO: prefab could cache lookup object id -> children ids
|
|
for (auto q = prefab->ObjectsDataCache.Begin(); q.IsNotEnd(); ++q)
|
|
{
|
|
Guid qParentId;
|
|
if (JsonTools::GetGuidIfValid(qParentId, *q->Value, "ParentID") && qParentId == prefabObjectId)
|
|
{
|
|
const Guid qPrefabObjectId = JsonTools::GetGuid(*q->Value, "ID");
|
|
SynchronizeNewPrefabInstance(context, data, prefab, actor, qPrefabObjectId);
|
|
}
|
|
}
|
|
}
|