diff --git a/engine/NBCore/CMakeLists.txt b/engine/NBCore/CMakeLists.txt
index ee3a13b..76e9249 100644
--- a/engine/NBCore/CMakeLists.txt
+++ b/engine/NBCore/CMakeLists.txt
@@ -1,5 +1,5 @@
 toAbsolutePath(NB_CORE_SOURCE 
-    ./src/Errors.cpp
+    ./src/ErrorsImpl.cpp
     ./src/Logger.cpp
     ./src/Processes.cpp
     ./src/StringUtils.cpp
@@ -10,6 +10,7 @@ toAbsolutePath(NB_CORE_INCLUDE
     ./ANSITerm.hpp
     ./DataSink.hpp
     ./Errors.hpp
+    ./ErrorsImpl.hpp
     ./Logger.hpp
     ./Processes.hpp
     ./StringUtils.hpp
diff --git a/engine/NBCore/DataSink.hpp b/engine/NBCore/DataSink.hpp
index d3c5d25..155c48a 100644
--- a/engine/NBCore/DataSink.hpp
+++ b/engine/NBCore/DataSink.hpp
@@ -72,11 +72,11 @@ template<typename DataType, typename ProcessorType>
 class MultithreadedDataProcessor 
 : public BufferedDataProcessor<DataType, ThreadsafeQueue<DataType>, ProcessorType> {
     using Base = BufferedDataProcessor<DataType, ThreadsafeQueue<DataType>, ProcessorType>;
-public:
+    public:
     ~MultithreadedDataProcessor() { type_ptr->stop(); }
 
     bool isRunning() const noexcept override {
-        return this->_running && (_runningThread!=nullptr);
+        return this->_running;
     }
     bool run() override {
         if (!type_ptr->isRunning()) {
@@ -98,7 +98,7 @@ public:
         return !type_ptr->isRunning();
     }
 
-protected:
+    protected:
     using Base::Base;
 
     unsigned int count() const {
diff --git a/engine/NBCore/Errors.hpp b/engine/NBCore/Errors.hpp
index 89cc13b..8a6db60 100644
--- a/engine/NBCore/Errors.hpp
+++ b/engine/NBCore/Errors.hpp
@@ -2,281 +2,11 @@
 #ifndef _NB_ERROR
 #define _NB_ERROR
 
-#include <exception>
-#include <memory>
-#include <string>
-#include <type_traits>
-#include <unordered_map>
-
+#include "ErrorsImpl.hpp"
 #include "Logger.hpp"
-#include "StringUtils.hpp"
-#include "TypeTraits.hpp"
 
 namespace nb {
 
-typedef std::unordered_map<unsigned int, const char*> ErrorCodeMap;
-
-template<typename T>
-constexpr bool IsValidException_v = std::is_base_of_v<std::exception, T>;
-template <typename T>
-using IsValidException = std::enable_if_t<IsValidException_v<T>, bool>;
-
-template<class ErrorType=NoneType>
-class ErrorBase;
-
-template <class ErrorType=NoneType>
-class Error;
-
-template<typename T>
-constexpr bool IsValidNBError_v = std::is_base_of_v<ErrorBase<NoneType>, T>;
-template <typename T>
-using IsValidNBError = std::enable_if_t<IsValidNBError_v<T>, bool>;
-
-
-template<>
-class ErrorBase<NoneType> {
-public:
-    const unsigned int code;
-    const std::string msg;
-    const std::string type;
-    const std::shared_ptr<const void> trace;
-    const bool traceIsNBError;
-
-    virtual std::string what() const noexcept = 0;
-    virtual std::shared_ptr<ErrorBase> make_shared() const noexcept = 0;
-    
-protected:
-    template<typename T=NoneType>
-    ErrorBase(const ErrorBase<T>& err) : ErrorBase(std::move(err)) {}
-
-    template<typename T=NoneType>
-    ErrorBase(ErrorBase<T>&& err) : ErrorBase(
-        err.code,
-        err.msg,
-        err.type,
-        (err.traceIsNBError) 
-            ? static_cast<const ErrorBase*>(err.trace.get()) 
-            : static_cast<const std::exception*>(err.trace.get())
-    ) {}
-
-    ErrorBase(
-        unsigned int code_,
-        std::string msg_,
-        std::string type_,
-        const std::exception* trace_
-    ) noexcept :
-        code(code_),
-        msg(msg_),
-        type(type_),
-        trace{  trace_ ? 
-            std::static_pointer_cast<const void>(
-                std::make_shared<Error<NoneType>>(*trace_)) 
-            : nullptr,
-        },
-        traceIsNBError(false)
-    {}
-
-    template<typename T, std::enable_if_t<IsValidNBError_v<T>, bool> = true>
-    ErrorBase(
-        unsigned int code_,
-        std::string msg_,
-        std::string type_,
-        const T* trace_
-    ) noexcept :
-        code(code_),
-        msg(msg_),
-        type(type_),
-        trace{trace_ ? trace_->make_shared() : nullptr},
-        traceIsNBError(true)
-    {}
-};
-
-
-template <class ErrorType>
-class ErrorBase : public ErrorBase<NoneType> {
-private:
-    using Base = ErrorBase<NoneType>;
-    void inline check_asserts() {
-        static_assert(std::is_same<const std::unordered_map<unsigned int, const char*>, decltype(ErrorType::ErrorMessages)>::value,
-            "const std::unordered_map<unsigned int, const char*> ErrorMessages must be "
-            "a class member."
-        );
-        static_assert(std::is_enum_v<typename ErrorType::Codes>, "enum Codes must be a class member.");
-        static_assert(std::is_same<std::underlying_type_t<typename ErrorType::Codes>, unsigned int>::value,
-            "enum Codes must be of underlying type unsigned int."
-        );
-        static_assert(std::is_same<const std::string, decltype(ErrorType::type)>::value,
-            "const std::string type must be a class member."
-        );
-    }
-
-public:
-    template <typename T>
-    ErrorBase(const ErrorBase<T>& cpy) : Base(cpy) { check_asserts(); }
-
-    virtual std::shared_ptr<Base> make_shared() const noexcept override {
-        return std::static_pointer_cast<Base>(
-            std::make_shared<ErrorBase>(*this)
-        );
-    }
-
-    virtual std::string what() const noexcept override {
-        std::string ret = msg;
-        if (trace) {
-            std::string trace_msg;
-            if (traceIsNBError) { 
-                trace_msg = std::static_pointer_cast<const Base>(trace)->what();
-            } else {
-                trace_msg = std::string(std::static_pointer_cast<const Base>(trace)->what());
-            }
-            ret += nb::NEWLINE + indent_strblock(
-                trace_msg,
-                nb::TABOVER,
-                nb::TABOVER+"Trace: "
-            );
-        }
-        return ret;
-    }
-
-    static const std::string type;
-    static const ErrorCodeMap ErrorMessages; 
-
-    using Base::code;
-    using Base::msg;
-    using Base::trace;
-    using Base::traceIsNBError;
-
-    friend ErrorType;
-    friend Error<ErrorType>;
-
-protected:
-    using Base::Base;
-
-    template <typename T>
-    ErrorBase(
-        unsigned int code_,
-        std::string msg_,
-        std::string type_,
-        const T* trace_
-    ) : Base(
-        code_,
-        msg_,
-        type_,
-        trace_
-    ) { check_asserts(); }
-};
-template <typename ErrorType>
-const std::string ErrorBase<ErrorType>::type = ErrorType::type;
-template <typename ErrorType>
-const ErrorCodeMap ErrorBase<ErrorType>::ErrorMessages = ErrorType::ErrorMessages;
-
-
-template <class ErrorType>
-class Error : public ErrorBase<ErrorType> {
-    using Base = ErrorBase<ErrorType>;
-public:
-    template <typename T>
-    Error(
-        unsigned int code_,
-        const T& trace_
-    ) noexcept : Base(
-        code_, 
-        ErrorType::ErrorMessages.at(code_),
-        ErrorType::type,
-        &trace_
-    ) {}
-
-    template<typename ET>
-    Error(
-        std::string msg_,
-        const ErrorBase<ET>& trace_
-    ) noexcept : Base(
-        0, 
-        msg_,
-        ErrorType::type,
-        &trace_
-    ) {}
-
-    Error(
-        std::string msg_,
-        const std::exception& trace_
-    ) noexcept : Base(
-        0, 
-        msg_,
-        ErrorType::type,
-        &trace_
-    ) {}
-
-    Error(unsigned int code_) noexcept : Base(
-        code_, 
-        ErrorType::ErrorMessages.at(code_),
-        ErrorType::type,
-        NULLPTR<std::exception>
-    ) {}
-
-    Error(std::string msg_) noexcept : Base(
-        0, 
-        msg_,
-        ErrorType::type,
-        NULLPTR<std::exception>
-    ) {}
-
-    using Base::what;
-    using Base::code;
-    using Base::msg;
-    using Base::trace;
-    using Base::traceIsNBError;
-    using Base::type;
-    using Base::ErrorMessages;
-
-protected:
-    using Base::Base;
-
-};
-
-
-template<>
-class Error<NoneType> : public ErrorBase<Error<NoneType>> {
-    using Base = ErrorBase<Error<NoneType>>;
-public:
-    using Base::Base;
-    
-    Error(unsigned int code_=1) noexcept : Base(
-        code_, 
-        ErrorMessages.at(code_),
-        type,
-        NULLPTR<std::exception>
-    ) {}
-
-    Error(const std::exception& err) : Base(
-        Codes::STANDARD,
-        std::string(err.what()),
-        "std::exception",
-        nullptr
-    ) {}
-
-    Error(std::string msg_) noexcept : Base(
-        Codes::UNDEFINED, 
-        msg_,
-        type,
-        NULLPTR<std::exception>
-    ) {}
-
-    enum Codes : unsigned int {
-        STANDARD, UNDEFINED
-    };
-
-    using Base::what;
-
-    using Base::code;
-    using Base::msg;
-    using Base::trace;
-    using Base::traceIsNBError;
-    static const std::string type;
-    static const ErrorCodeMap ErrorMessages;
-};
-} // namespace nb
-
 #ifdef _NB_AUTOLOG
     #ifdef _NB_CODE_ERROR_LOCATIONS
         #ifndef LOG
@@ -303,10 +33,11 @@ public:
 
 #ifndef THROW
     #ifdef _NB_AUTOLOG
-        #define THROW(args...) ERROR(args); throw args
+        #define THROW(args...) ERROR(args); nb::logger.stop(); throw args
     #else
         #define THROW(args...) throw args
     #endif // _NB_CODE_ERROR_LOCATIONS
 #endif // THROW
+} // namespace nb
 
 #endif // _NB_ERROR
\ No newline at end of file
diff --git a/engine/NBCore/ErrorsImpl.hpp b/engine/NBCore/ErrorsImpl.hpp
new file mode 100644
index 0000000..c5b8589
--- /dev/null
+++ b/engine/NBCore/ErrorsImpl.hpp
@@ -0,0 +1,175 @@
+#pragma once
+#ifndef _NB_ERRORS_IMPL
+#define _NB_ERRORS_IMPL
+
+#include <exception>
+#include <memory>
+#include <string>
+#include <type_traits>
+#include <unordered_map>
+
+#include "StringUtils.hpp"
+#include "TypeTraits.hpp"
+
+namespace nb {
+
+typedef std::unordered_map<unsigned int, std::string> ErrorCodeMap;
+
+template <class ErrorType=NoneType>
+class Error;
+
+class ErrorBase {
+    protected:
+
+    public:
+    const unsigned int code;
+    const std::string msg;
+    const std::string type;
+    const std::shared_ptr<ErrorBase> trace;
+
+    ErrorBase(const ErrorBase&) = default;
+    ErrorBase(const std::exception&) noexcept;
+    virtual std::string what() const noexcept {
+        std::string ret = msg;
+        if (trace) {
+            std::string trace_msg = msg;
+            ret += nb::NEWLINE + indent_strblock(
+                trace_msg,
+                nb::TABOVER,
+                nb::TABOVER+"Trace: "
+            );
+        }
+        return ret;
+    }
+    
+    protected:
+    ErrorBase(
+    unsigned int code_,
+    std::string msg_,
+    std::string type_,
+    std::shared_ptr<ErrorBase> trace_
+) noexcept :
+    code(code_),
+    msg(msg_),
+    type(type_),
+    trace{trace_}
+{}
+};
+
+template <class ErrorType>
+class Error : public ErrorBase {
+    private:
+    void inline check_asserts() {
+        static_assert(std::is_same<const ErrorCodeMap, decltype(ErrorType::ErrorMessages)>::value,
+            "const std::unordered_map<unsigned int, const char*> ErrorMessages must be "
+            "a class member."
+        );
+        static_assert(std::is_enum_v<typename ErrorType::Codes>, "enum Codes must be a class member.");
+        static_assert(std::is_same<std::underlying_type_t<typename ErrorType::Codes>, unsigned int>::value,
+            "enum Codes must be of underlying type unsigned int."
+        );
+        static_assert(std::is_same<const std::string, decltype(ErrorType::type)>::value,
+            "const std::string type must be a class member."
+        );
+    }
+
+    protected:
+    using ErrorBase::ErrorBase;
+
+    public:
+    Error(
+        unsigned int code_,
+        const ErrorBase& trace_
+    ) noexcept : ErrorBase(
+        code_, 
+        ErrorType::ErrorMessages.at(code_),
+        ErrorType::type,
+        std::make_shared<ErrorBase>(trace_)
+    ) { check_asserts(); }
+
+    Error(
+        std::string msg_,
+        const ErrorBase& trace_
+    ) noexcept : ErrorBase(
+        0, 
+        msg_,
+        ErrorType::type,
+        std::make_shared<ErrorBase>(trace_)
+    ) { check_asserts(); }
+
+    Error(unsigned int code_) noexcept : ErrorBase(
+        code_, 
+        ErrorType::ErrorMessages.at(code_),
+        ErrorType::type,
+        nullptr
+    ) { check_asserts(); }
+
+    Error(std::string msg_) noexcept : ErrorBase(
+        0, 
+        msg_,
+        ErrorType::type,
+        nullptr
+    ) { check_asserts(); }
+
+    Error(
+        unsigned int code_,
+        const std::string& note_,
+        const ErrorBase& trace_
+    ) noexcept : ErrorBase(
+        code_,
+        ErrorType::ErrorMessages.at(code_) + " (" + note_ + ")",
+        ErrorType::type,
+        std::make_shared<ErrorBase>(trace_)
+    ) { check_asserts(); }
+
+    Error(unsigned int code_, const std::string& note_) noexcept : ErrorBase(
+        code_,
+        ErrorType::ErrorMessages.at(code_) + " (" + note_ + ")",
+        ErrorType::type,
+        nullptr
+    ) { check_asserts(); }
+
+    using ErrorBase::what;
+    using ErrorBase::code;
+    using ErrorBase::msg;
+    using ErrorBase::trace;
+    using ErrorBase::type;
+};
+
+
+template<>
+class Error<NoneType> : public Error<Error<NoneType>> {
+    using Base = Error<Error<NoneType>>;
+    
+    public:
+    using Base::Base;
+    
+    Error(unsigned int code_=1) noexcept : Base(code_) {}
+
+    Error(const std::exception& err) : Base(
+        Codes::STANDARD,
+        std::string(err.what()),
+        "std::exception",
+        nullptr
+    ) {}
+
+    // fix
+    Error(std::string msg_) noexcept : Base(
+        Codes::UNDEFINED, 
+        msg_
+    ) {}
+
+    enum Codes : unsigned int {
+        STANDARD, UNDEFINED
+    };
+
+    using Base::what;
+    using Base::code;
+    using Base::msg;
+    using Base::trace;
+    static const std::string type;
+    static const ErrorCodeMap ErrorMessages;
+};
+} // namespace nb
+
+#endif // _NB_ERRORS_IMPL
\ No newline at end of file
diff --git a/engine/NBCore/Logger.hpp b/engine/NBCore/Logger.hpp
index 2d64198..f4e79be 100644
--- a/engine/NBCore/Logger.hpp
+++ b/engine/NBCore/Logger.hpp
@@ -9,13 +9,13 @@
 #include <vector>
 
 #include "DataSink.hpp"
+#include "ErrorsImpl.hpp"
 #include "Processes.hpp"
 #include "ThreadSafeQueue.hpp"
 #include "TypeTraits.hpp"
 
 namespace nb {
 
-template <typename T>
 class ErrorBase;
 
 typedef std::chrono::time_point<
@@ -32,7 +32,8 @@ class LoggerBase
     using StreamType = ST;
     using LoggerType = Logger;
     using Base = MultithreadedDataProcessor<LogType, LoggerType>;
-public:
+
+    public:
     bool run() override {
         if (!static_cast<LoggerType*>(this)->isRunning()) {
             this->_running = true;
@@ -45,7 +46,9 @@ public:
         }
         return static_cast<LoggerType*>(this)->isRunning();
     }
-protected:
+    using Base::flush;
+
+    protected:
     LoggerBase() = default;
 
     StreamType _ostream;
@@ -73,7 +76,33 @@ public:
 
     ~DebugLogger() { static_cast<LoggerType*>(this)->stop(); }
 
+    template<typename U>
     void log(
+        U val,
+        std::string file="",
+        unsigned int line=0
+    ) { static_cast<LoggerType*>(this)->write_message(val, 0x00, file, line); }
+
+    template<typename U>
+    void warn(
+        U val,
+        uint8_t lvl=0x01,
+        std::string file="",
+        unsigned int line=0
+    ) { static_cast<LoggerType*>(this)->write_message(val, lvl, file, line); }
+
+    void error(
+        const ErrorBase& val,
+        std::string file="",
+        unsigned int line=0
+    ) {
+        static_cast<LoggerType*>(this)->write_message(val, 0xFF, file, line);
+        static_cast<LoggerType*>(this)->flush();
+    }
+
+    protected:
+    std::vector<std::ostream*> _ostream;
+    void write_message(
         std::string msg,
         uint8_t lvl=0x00,
         std::string file="",
@@ -91,56 +120,24 @@ public:
     }
 
     template <size_t N>
-    void log(
+    void write_message(
         char const(&msg) [N],
         uint8_t lvl=0x00,
         std::string file="",
         unsigned int line=0
     ) {
-        static_cast<LoggerType*>(this)->log(std::string(msg), lvl, file, line);
+        static_cast<LoggerType*>(this)->write_message(std::string(msg), lvl, file, line);
     }
 
-    template <typename T>
-    void log(
-        const ErrorBase<T>& err,
-        uint8_t lvl=0xFF,
+    void write_message(
+        const ErrorBase& err,
+        uint8_t lvl=0x00,
         std::string file="",
         unsigned int line=0
     ) {
-        static_cast<LoggerType*>(this)->log(err.what(), lvl, file, line);
+        static_cast<LoggerType*>(this)->write_message(err.what(), lvl, file, line);
     }
 
-    template <typename T>
-    std::enable_if_t<std::is_base_of_v<std::exception, T>, void> log(
-        const T& err,
-        uint8_t lvl=0xFF,
-        std::string file="",
-        unsigned int line=0
-    ) {
-        static_cast<LoggerType*>(this)->log(std::string(err.what()), lvl, file, line);
-    }
-
-    template<typename U>
-    void warn(
-        U val,
-        uint8_t lvl=0x01,
-        std::string file="",
-        unsigned int line=0
-    ) { static_cast<LoggerType*>(this)->log(val, lvl, file, line); }
-
-    template<typename U>
-    void error(
-        U val,
-        std::string file="",
-        unsigned int line=0
-    ) {
-        static_cast<LoggerType*>(this)->log(val, 0xFF, file, line);
-        static_cast<LoggerType*>(this)->flush();
-    }
-
-protected:
-    std::vector<std::ostream*> _ostream;
-
 };
 
 class DefaultDebugLogger : public DebugLogger<DefaultDebugLogger> {
@@ -150,7 +147,7 @@ class DefaultDebugLogger : public DebugLogger<DefaultDebugLogger> {
     template <typename... Ts>
     struct LogRow;
 
-public:
+    public:
     using Base::Base;
 
     ~DefaultDebugLogger() { stop(); }
@@ -166,6 +163,8 @@ protected:
     bool process(const LogEvent& msg);
 };  
 
+extern const bool LOGGER_RUNNING;
+
 #ifndef _NB_NO_LOGGER
 extern DefaultDebugLogger logger;
 #endif // _NB_NO_LOGGER
diff --git a/engine/NBCore/Utils.hpp b/engine/NBCore/Utils.hpp
index b7a477d..76ae1ed 100644
--- a/engine/NBCore/Utils.hpp
+++ b/engine/NBCore/Utils.hpp
@@ -9,6 +9,12 @@
 
 namespace nb {
 
+template<typename T>
+using SharedVector = std::vector<std::shared_ptr<T>>;
+
+template<typename T>
+using RValueVector = std::vector<T&&>;
+
 using ByteVector = std::vector<uint8_t>;
 
 class ObjectManagerError : public Error<ObjectManagerError> {
@@ -25,6 +31,38 @@ class ObjectManagerError : public Error<ObjectManagerError> {
     static const ErrorCodeMap ErrorMessages;
 };
 
+template<typename T>
+ByteVector vectorToBytes(const std::vector<T>& vec) {
+    unsigned int num_bytes = vec.size() * sizeof(T);
+    ByteVector ret(num_bytes);
+    memcpy(ret.data(), vec.data(), num_bytes);
+    return ret;
+}
+
+template<typename T, typename S>
+ByteVector concatVectorBytes(const std::vector<T>& vec1, const std::vector<S>& vec2) {
+    ByteVector vec1_raw = vectorToBytes<T>(vec1);
+    ByteVector vec2_raw = vectorToBytes<S>(vec2);
+    unsigned int vec1_raw_size = vec1_raw.size();
+    unsigned int vec2_raw_size = vec2_raw.size();
+    ByteVector ret(vec1_raw_size + vec2_raw_size);
+    memcpy(ret.data(), vec1_raw.data(), vec1_raw_size);
+    memcpy(ret.data() + vec1_raw_size, vec2_raw.data(), vec2_raw_size);
+    return ret;
+}
+
+template<typename T>
+std::vector<T> bytesToVector(const ByteVector& vec) {
+    if (vec.size() % sizeof(T) != 0) {
+        THROW(std::runtime_error("Data size does not align to std::vector<" + std::string(typeid(T).name()) + ">."));
+    }
+    unsigned int num_elmts = vec.size() / sizeof(T);
+    std::vector<T> ret(num_elmts);
+    memcpy(ret.data(), vec.data(), vec.size());
+
+    return ret;
+}
+
 template <typename T>
 class ThreadsafeObjectLock;
 
diff --git a/engine/NBCore/src/Errors.cpp b/engine/NBCore/src/Errors.cpp
deleted file mode 100644
index e5b22fa..0000000
--- a/engine/NBCore/src/Errors.cpp
+++ /dev/null
@@ -1,13 +0,0 @@
-#include "Errors.hpp"
-#include "TypeTraits.hpp"
-
-namespace nb {
-
-const std::string Error<>::type =  "nb::Error";
-
-const ErrorCodeMap Error<nb::NoneType>::ErrorMessages = {
-    {Error::Codes::STANDARD, "std::exception"},
-    {Error::Codes::UNDEFINED, "Error"}
-};
-
-}
diff --git a/engine/NBCore/src/ErrorsImpl.cpp b/engine/NBCore/src/ErrorsImpl.cpp
new file mode 100644
index 0000000..a36b110
--- /dev/null
+++ b/engine/NBCore/src/ErrorsImpl.cpp
@@ -0,0 +1,16 @@
+#include "ErrorsImpl.hpp"
+
+namespace nb {
+
+const std::string Error<>::type =  "nb::Error";
+const ErrorCodeMap Error<>::ErrorMessages = {
+    {Error::Codes::STANDARD, "std::exception"},
+    {Error::Codes::UNDEFINED, "Error"}
+};
+
+//ErrorBase::
+
+ErrorBase::ErrorBase(const std::exception& exception_) noexcept 
+: ErrorBase(Error<NoneType>(exception_)) {}
+
+}
diff --git a/engine/NBCore/src/Logger.cpp b/engine/NBCore/src/Logger.cpp
index 8af8796..70c8ff8 100644
--- a/engine/NBCore/src/Logger.cpp
+++ b/engine/NBCore/src/Logger.cpp
@@ -33,6 +33,6 @@ static bool RUN_LOGGER(nb::DefaultDebugLogger& log) {
     return log.run();
 }
 
-static const bool LOGGER_RUNNING = RUN_LOGGER(logger);
+const bool LOGGER_RUNNING = RUN_LOGGER(logger);
 
 } // namespace nb
\ No newline at end of file