fields builder

include/sp/protocol/Field.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <sp/common/DataBuffer.h>
+#include <sp/protocol/Templates.h>
 
 namespace sp {
 
@@ -62,4 +63,18 @@ class FieldWriter {
 	DataBuffer& m_Buffer;
 };
 
+template <typename... TFields>
+struct FieldsBuilder {};
+
+template <>
+struct FieldsBuilder<> {
+	using Type = std::tuple<>;
+};
+
+template <typename TField, typename... TFields>
+struct FieldsBuilder<TField, TFields...> {
+	using Type = sp::tuple_cat_t<std::tuple<Field<TField>>, typename FieldsBuilder<TFields...>::Type>;
+};
+
+
 }  // namespace sp