Making block solids

lib/wal/sources/Entity/Entity.hpp

@@ -79,6 +79,32 @@ namespace WAL
 			return static_cast<T *>(existing->second.get());
 		}
 
+		//! @brief Get a component of a specific type
+		//! @tparam The type of the component
+		//! @throw NotFoundError if the component could not be found
+		//! @return The component of the requested type.
+		template<typename T>
+		const T &getComponent() const
+		{
+			const T *ret = this->tryGetComponent<T>();
+			if (ret == nullptr)
+				throw NotFoundError("No component could be found with the type \"" + std::string(typeid(T).name()) + "\".");
+			return *ret;
+		}
+
+		//! @brief Get a component of a specific type or null if not found.
+		//! @tparam The type of the component
+		//! @return The component or nullptr if not found.
+		template<typename T>
+		const T *tryGetComponent() const
+		{
+			const std::type_index &type = typeid(T);
+			auto existing = this->_components.find(type);
+			if (existing == this->_components.end())
+				return nullptr;
+			return static_cast<T *>(existing->second.get());
+		}
+
 		//! @brief Check if this entity has a component.
 		//! @tparam T The type of the component
 		template<typename T>