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| author | untodesu <kirill@untode.su> | 2025-03-15 16:22:09 +0500 |
|---|---|---|
| committer | untodesu <kirill@untode.su> | 2025-03-15 16:22:09 +0500 |
| commit | 3bf42c6ff3805a0d42bbc661794a95ff31bedc26 (patch) | |
| tree | 05049955847504808d6bed2bb7b155f8b03807bb /deps/include/entt/entity/component.hpp | |
| parent | 02294547dcde0d4ad76e229106702261e9f10a51 (diff) | |
| download | voxelius-3bf42c6ff3805a0d42bbc661794a95ff31bedc26.tar.bz2 voxelius-3bf42c6ff3805a0d42bbc661794a95ff31bedc26.zip | |
Add whatever I was working on for the last month
Diffstat (limited to 'deps/include/entt/entity/component.hpp')
| -rw-r--r-- | deps/include/entt/entity/component.hpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/deps/include/entt/entity/component.hpp b/deps/include/entt/entity/component.hpp new file mode 100644 index 0000000..7b17827 --- /dev/null +++ b/deps/include/entt/entity/component.hpp @@ -0,0 +1,56 @@ +#ifndef ENTT_ENTITY_COMPONENT_HPP
+#define ENTT_ENTITY_COMPONENT_HPP
+
+#include <cstddef>
+#include <type_traits>
+#include "../config/config.h"
+#include "fwd.hpp"
+
+namespace entt {
+
+/*! @cond TURN_OFF_DOXYGEN */
+namespace internal {
+
+template<typename Type, typename = void>
+struct in_place_delete: std::bool_constant<!(std::is_move_constructible_v<Type> && std::is_move_assignable_v<Type>)> {};
+
+template<>
+struct in_place_delete<void>: std::false_type {};
+
+template<typename Type>
+struct in_place_delete<Type, std::enable_if_t<Type::in_place_delete>>
+ : std::true_type {};
+
+template<typename Type, typename = void>
+struct page_size: std::integral_constant<std::size_t, !std::is_empty_v<ENTT_ETO_TYPE(Type)> * ENTT_PACKED_PAGE> {};
+
+template<>
+struct page_size<void>: std::integral_constant<std::size_t, 0u> {};
+
+template<typename Type>
+struct page_size<Type, std::void_t<decltype(Type::page_size)>>
+ : std::integral_constant<std::size_t, Type::page_size> {};
+
+} // namespace internal
+/*! @endcond */
+
+/**
+ * @brief Common way to access various properties of components.
+ * @tparam Type Type of component.
+ */
+template<typename Type, typename = void>
+struct component_traits {
+ static_assert(std::is_same_v<std::decay_t<Type>, Type>, "Unsupported type");
+
+ /*! @brief Component type. */
+ using type = Type;
+
+ /*! @brief Pointer stability, default is `false`. */
+ static constexpr bool in_place_delete = internal::in_place_delete<Type>::value;
+ /*! @brief Page size, default is `ENTT_PACKED_PAGE` for non-empty types. */
+ static constexpr std::size_t page_size = internal::page_size<Type>::value;
+};
+
+} // namespace entt
+
+#endif
|