split property & values into separate classes and files

Signed-off-by: Folling <mail@folling.io>

include/ikarus/values/number_value.h

@@ -0,0 +1,44 @@
+#pragma once
+
+/// \file number_value.h
+/// \author Folling <folling@ikarus.world>
+
+#include <ikarus/macros.h>
+
+/// \addtogroup entity_value Entity Values
+/// @{
+
+IKARUS_BEGIN_HEADER
+
+/// \brief A true/false boolean-like value. For example "IsDead".
+struct IkarusNumberValue;
+
+/// \brief Creates a number value from a long double.
+/// \param value The numeric value.
+/// \return The entity value.
+/// \remark Must be freed with #ikarus_free.
+IKA_API IkarusNumberValue * ikarus_number_value_create(long double value);
+
+/// \brief Creates an indeterminate number value.
+/// \return The entity value.
+/// \remark Must be freed with #ikarus_free.
+IKA_API IkarusNumberValue * ikarus_number_value_create_indeterminate();
+
+/// \brief Sets the value of a number value.
+/// \param value The number value.
+/// \pre \li Must not be null.
+/// \param new_value The new value.
+IKA_API void ikarus_number_value_set(IkarusNumberValue * value, bool new_value);
+
+/// \brief Fetches the underlying value of a number value.
+/// \param value The number value.
+/// \return The underlying value.
+/// \warning If the value is indeterminate, false is returned.
+IKA_API long double ikarus_number_value_get_underlying(IkarusNumberValue const * value);
+
+/// \brief Converts a number value to an entity value.
+/// \param number_value The number value to convert.
+/// \return The converted entity value.
+IKA_API struct IkarusEntityValue * ikarus_number_value_to_entity_value(IkarusNumberValue * number_value);
+
+IKARUS_END_HEADER