Sdk/Entity: Add IsDying method

SDK/include/NDK/Entity.hpp

@@ -61,6 +61,7 @@ namespace Ndk
 
 			void Invalidate();
 			inline bool IsEnabled() const;
+			bool IsDying() const;
 			inline bool IsValid() const;
 
 			inline void RemoveAllComponents();

SDK/include/NDK/World.hpp

@@ -67,6 +67,8 @@ namespace Ndk
 			inline void KillEntity(Entity* entity);
 			inline void KillEntities(const EntityVector& list);
 
+			inline bool IsEntityDying(const Entity* entity) const;
+			inline bool IsEntityDying(EntityId id) const;
 			inline bool IsEntityValid(const Entity* entity) const;
 			inline bool IsEntityIdValid(EntityId id) const;
 			inline bool IsProfilerEnabled() const;

SDK/include/NDK/World.inl

@@ -324,13 +324,34 @@ namespace Ndk
 			KillEntity(entity);
 	}
 
+	/*!
+	* \brief Checks whether or not an entity is dying (has been killed this update)
+	* \return true If the entity exists and is dying
+	*
+	* \param entity Pointer to the entity
+	*/
+	inline bool World::IsEntityDying(const Entity* entity) const
+	{
+		return entity && IsEntityDying(entity->GetId());
+	}
+
+	/*!
+	* \brief Checks whether or not an entity is dying (has been killed this update)
+	* \return true If it is the case, false if the entity is alive (and hasn't been killed yet) or if the entity id is invalid
+	*
+	* \param id Identifier of the entity
+	*/
+	inline bool World::IsEntityDying(EntityId id) const
+	{
+		return m_killedEntities.UnboundedTest(id);
+	}
+
 	/*!
 	* \brief Checks whether or not an entity is valid
 	* \return true If it is the case
 	*
 	* \param entity Pointer to the entity
 	*/
-
 	inline bool World::IsEntityValid(const Entity* entity) const
 	{
 		return entity && entity->GetWorld() == this && IsEntityIdValid(entity->GetId());

SDK/src/NDK/Entity.cpp

@@ -133,13 +133,22 @@ namespace Ndk
 	/*!
 	* \brief Invalidates the entity
 	*/
-
 	void Entity::Invalidate()
 	{
 		// We alert everyone that we have been updated
 		m_world->Invalidate(m_id);
 	}
 
+
+	/*!
+	* \brief Checks if the entity has been killed this update
+	* \return True if the entity is currently dying and will be dead at next world refresh
+	*/
+	bool Entity::IsDying() const
+	{
+		return m_world->IsEntityDying(m_id);
+	}
+
 	/*!
 	* \brief Creates the entity
 	*/

tests/SDK/NDK/World.cpp

@@ -100,4 +100,30 @@ SCENARIO("World", "[NDK][WORLD]")
 			}
 		}
 	}
-}
+
+	GIVEN("A newly created entity")
+	{
+		Ndk::World world(false);
+		Ndk::EntityHandle entity = world.CreateEntity();
+
+		REQUIRE(entity.IsValid());
+		REQUIRE(entity->IsValid());
+		CHECK_FALSE(entity->IsDying());
+
+		WHEN("We kill it")
+		{
+			entity->Kill();
+
+			CHECK(entity.IsValid());
+			CHECK(entity->IsValid());
+			CHECK(entity->IsDying());
+
+			THEN("We refresh the world")
+			{
+				world.Refresh();
+
+				CHECK_FALSE(entity.IsValid());
+			}
+		}
+	}
+}