70 lines
3.0 KiB
C++
70 lines
3.0 KiB
C++
#include "EntityFile.h"
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#include "World.h"
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class EntityFileParser
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{
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public:
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EntityFileParser(EntityFile* entityFile)
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: m_EntityFile(entityFile)
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{
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m_Handler.SetStartEntityCallback(std::bind(&EntityFileParser::onStartEntity, this, std::placeholders::_1, std::placeholders::_2));
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m_Handler.SetStartComponentCallback(std::bind(&EntityFileParser::onStartComponent, this, std::placeholders::_1, std::placeholders::_2));
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m_Handler.SetStartFieldCallback(std::bind(&EntityFileParser::onStartComponentField, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
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m_Handler.SetStartFieldDataCallback(std::bind(&EntityFileParser::onFieldData, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
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}
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void MergeEntities(World* world)
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{
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m_World = world;
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m_EntityIDMapper[0] = 0;
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m_EntityFile->Parse(&m_Handler);
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}
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private:
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EntityFile* m_EntityFile;
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EntityFileHandler m_Handler;
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World* m_World = nullptr;
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// Maps EntityIDs local to the file to real IDs in the world
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std::map<EntityID, EntityID> m_EntityIDMapper;
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void onStartEntity(EntityID entity, EntityID parent)
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{
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EntityID realParent = m_EntityIDMapper.at(parent);
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EntityID realEntity = m_World->CreateEntity(realParent);
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m_EntityIDMapper[entity] = realEntity;
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LOG_DEBUG("Created entity #%i (%i) with parent %i (%i)", entity, realEntity, parent, realParent);
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}
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void onStartComponent(EntityID entity, std::string component)
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{
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EntityID realEntity = m_EntityIDMapper.at(entity);
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m_World->AttachComponent(entity, component);
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LOG_DEBUG("Attached component of type \"%s\" to entity #%i (%i)", component.c_str(), entity, realEntity);
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}
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void onStartComponentField(EntityID entity, std::string componentType, std::string fieldName, std::map<std::string, std::string> attributes)
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{
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EntityID realEntity = m_EntityIDMapper.at(entity);
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ComponentWrapper component = m_World->GetComponent(realEntity, componentType);
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std::string fieldType = component.Info.FieldTypes.at(fieldName);
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LOG_DEBUG("Field \"%s\" type \"%s\"", fieldName.c_str(), fieldType.c_str());
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LOG_DEBUG("Attributes:");
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for (auto& kv : attributes) {
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LOG_DEBUG("\t%s = %s", kv.first.c_str(), kv.second.c_str());
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}
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char* data = component.Data + component.Info.FieldOffsets.at(fieldName);
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EntityFile::WriteAttributeData(data, fieldType, attributes);
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}
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void onFieldData(EntityID entity, std::string componentType, std::string fieldName, const char* fieldData)
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{
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EntityID realEntity = m_EntityIDMapper.at(entity);
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ComponentWrapper component = m_World->GetComponent(realEntity, componentType);
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std::string fieldType = component.Info.FieldTypes.at(fieldName);
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char* data = component.Data + component.Info.FieldOffsets.at(fieldName);
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EntityFile::WriteValueData(data, fieldType, fieldData);
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}
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}; |