1 files changed, 38 insertions, 0 deletions
diff --git a/entity/types.hpp b/entity/types.hpp
new file mode 100644
index 00000000..88391725
--- /dev/null
+++ b/entity/types.hpp
@@ -0,0 +1,38 @@
+#pragma once
+#include <cstdint>
+#include <type_traits>
+
+namespace Corrade::Containers {
+template<typename T> class BasicStringView;
+using StringView = BasicStringView<const char>;
+} // namespace Corrade::Containers
+
+namespace floormat::entities {
+
+enum class erased_field_type : std::uint32_t {
+    none,
+    string,
+    u8, u16, u32, u64, s8, s16, s32, s64,
+    user_type_start,
+    MAX = (1u << 31) - 1u,
+    DYNAMIC = (std::uint32_t)-1,
+};
+
+template<erased_field_type> struct type_of_erased_field;
+template<typename T> struct erased_field_type_v_ : std::integral_constant<erased_field_type, erased_field_type::DYNAMIC> {};
+
+#define FM_ERASED_FIELD_TYPE(TYPE, ENUM)                                                                                    \
+    template<> struct erased_field_type_v_<TYPE> : std::integral_constant<erased_field_type, erased_field_type::ENUM> {};   \
+    template<> struct type_of_erased_field<erased_field_type::ENUM> { using type = TYPE; }
+FM_ERASED_FIELD_TYPE(std::uint8_t, u8);
+FM_ERASED_FIELD_TYPE(std::uint16_t, u16);
+FM_ERASED_FIELD_TYPE(std::uint32_t, u32);
+FM_ERASED_FIELD_TYPE(std::uint64_t, u64);
+FM_ERASED_FIELD_TYPE(std::int8_t, s8);
+FM_ERASED_FIELD_TYPE(std::int16_t, s16);
+FM_ERASED_FIELD_TYPE(std::int32_t, s32);
+FM_ERASED_FIELD_TYPE(std::int64_t, s64);
+FM_ERASED_FIELD_TYPE(StringView, string);
+#undef FM_ERASED_FIELD_TYPE
+
+} // namespace floormat::entities