Sdk/Application: Add command-line arguments handling

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Former-commit-id: d64cc60dbd82cffc23e081f270d0e173b9e2a6a5 [formerly a9ff7af1ab1ebbd1687d120a8e8e036e6c6926b5]
Former-commit-id: 45f34e16b8d6a91d407df30c36e598ff3270e50f

SDK/include/NDK/Application.inl

@@ -33,22 +33,6 @@ namespace Ndk
 		Sdk::Initialize();
 	}
 
-	/*!
-	* \brief Constructs an Application object with command-line arguments
-	*
-	* Pass the argc and argv arguments from the main function.
-	*
-	* Command-line arguments can be retrieved by application methods
-	*
-	* This calls Sdk::Initialize()
-	*
-	* \remark Only one Application instance can exist at a time
-	*/
-	inline Application::Application(int argc, const char* argv[]) :
-	Application()
-	{
-	}
-
 	/*!
 	* \brief Destructs the application object
 	*
@@ -233,6 +217,30 @@ namespace Ndk
 	}
 	#endif
 
+	/*!
+	* \brief Gets the options used to start the application
+	*
+	* Options are defined as "-optionName" in command-line and are always lower-case
+	*
+	* \return Command-line options
+	*/
+	inline const std::set<Nz::String>& Application::GetOptions() const
+	{
+		return m_options;
+	}
+
+	/*!
+	* \brief Gets the parameters used to start the application
+	*
+	* Parameters are defined as "-key=value" in command-line, their key is lower-case but value capitals are kept.
+	*
+	* \return Command-line parameters
+	*/
+	inline const std::map<Nz::String, Nz::String>& Application::GetParameters() const
+	{
+		return m_parameters;
+	}
+
 	/*!
 	* \brief Gets the update time of the application
 	* \return Update rate
@@ -242,6 +250,46 @@ namespace Ndk
 		return m_updateTime;
 	}
 
+	/*!
+	* \brief Query for a command-line option
+	*
+	* \param option Option name
+	*
+	* \remark option must be lower-case
+	*
+	* \return True if option is present
+	*
+	* \see GetOptions
+	*/
+	inline bool Application::HasOption(const Nz::String& option) const
+	{
+		return m_options.count(option) != 0;
+	}
+
+	/*!
+	* \brief Query for a command-line option
+	*
+	* \param key Parameter name
+	* \param value Optional string to receive the parameter value
+	*
+	* \remark key must be lower-case
+	*
+	* \return True if parameter is present
+	*
+	* \see GetParameters
+	*/
+	inline bool Application::HasParameter(const Nz::String& key, Nz::String* value) const
+	{
+		auto it = m_parameters.find(key);
+		if (it == m_parameters.end())
+			return false;
+
+		if (value)
+			*value = it->second;
+
+		return true;
+	}
+
 	/*!
 	* \brief Checks if the console overlay is enabled
 	*