restructure into smaller files & add IWYU/clang-tidy

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

include/ikarus/scopes/property_scope.h

@@ -0,0 +1,65 @@
+#pragma once
+
+/// \file property_scope.h
+/// \author Folling <mail@folling.io>
+
+#include <ikarus/id.h>
+#include <ikarus/macros.h>
+#include <ikarus/objects/blueprint.h>
+#include <ikarus/objects/entity.h>
+
+/// \addtogroup object_scopes ObjectScopes
+/// @{
+
+IKARUS_BEGIN_HEADER
+
+/// \brief Data for a property scope. This can either be a blueprint or an entity.
+union IkarusPropertyScopeData {
+    /// \private \brief The blueprint the property is scoped to.
+    IkarusBlueprint _blueprint;
+    /// \private \brief The entity the property is scoped to.
+    IkarusEntity _entity;
+};
+
+/// \brief The type of a property scope. This can either be a blueprint or an entity.
+enum IkarusPropertyScopeType {
+    /// \brief The property is scoped to a blueprint.
+    IkarusPropertyScopeType_Blueprint,
+    /// \brief The property is scoped to an entity.
+    IkarusPropertyScopeType_Entity
+};
+
+/// \brief The scope of a property
+struct IkarusPropertyScope {
+    /// \private \brief Represents the type of the scope.
+    IkarusPropertyScopeType _type;
+    /// \private \brief Represents the data of the scope.
+    IkarusPropertyScopeData _data;
+};
+
+/// \brief Creates a property scope from a blueprint.
+/// \param blueprint The blueprint the property is scoped to.
+/// \return The created property scope.
+IKA_API IkarusPropertyScope ikarus_property_scope_create_blueprint(IkarusBlueprint blueprint);
+/// \brief Creates a property scope from a entity.
+/// \param entity The entity the property is scoped to.
+/// \return The created property scope.
+IKA_API IkarusPropertyScope ikarus_property_scope_create_entity(IkarusEntity entity);
+
+/// \brief Fetches the type of an property scope.
+/// \param scope The scope to fetch the type of.
+/// \return The type of the scope.
+IKA_API IkarusPropertyScopeType ikarus_property_scope_get_type(IkarusPropertyScope scope);
+
+/// \brief Visits a property scope, calling the appropriate function.
+/// \param scope The scope to to visit
+/// \param blueprint The function to call if the property is scoped to a blueprint.
+/// \param entity The function to call if the property is scoped to an entity.
+/// \param data Optional data to pass to the functions.
+void ikarus_property_scope_visit(
+    IkarusPropertyScope scope, void (*blueprint)(IkarusBlueprint, void *), void (*entity)(IkarusEntity, void *), void * data
+);
+
+IKARUS_END_HEADER
+
+// @}