Added GetComponents to Component Manager

SHADE_Engine/src/ECS_Base/Managers/SHComponentManager.h

@@ -23,7 +23,7 @@
 #include "SH_API.h"
 #include "Events/SHEventManager.hpp"
 
-
+#include <tuple>
 #include <cassert>
 
 namespace SHADE
@@ -151,6 +151,32 @@ namespace SHADE
 			return (componentSet.GetSparseSet<T>()->GetElement_s(EntityHandleGenerator::GetIndex(entityID)));
 		}
 
+    /*!*************************************************************************
+     * \brief
+     * Gets the Component of the entity with the specified entityID
+     *
+     * This is the safe version of GetComponent_s which does a HasComponent to make
+     * sure that the entity has such a component and returns nullptr if it doesn't
+     *
+     * This safe version also checks if the sparse set of this component type
+     * has been created in SHComponentManager and creates one if it doesn't
+     *
+     * @tparam T...
+     * Pack of Types for all the Components to get.
+     * \param	entityID
+     * EntityID of the entity that we are trying to get the component of.
+     * \return
+     * A tuple of pointers to all the components specified.
+     * Returns nullptr if the entity does not contain such a component.
+    ***************************************************************************/
+
+    template<typename ...T>
+    static std::enable_if_t<(... && std::is_base_of_v<SHComponent, T>), std::tuple<T*...>> GetComponents(EntityID entityID) noexcept
+    {
+      return std::make_tuple<T*...>(GetComponent_s<T>(entityID)...);
+    }
+
+
 		/*!*************************************************************************
 		 * \brief
 		 * Gets the Component of the entity with the specified entityID