Sdk/Application: Add command-line arguments handling

Former-commit-id: efe6c5a1d911bb78314f8819575699874f5101e8 [formerly a9b33eea0b4b261d3e3a63d8949512f737dbe1e1] [formerly bd00d4e8009ff0efa74e6a27d78960f6d3d72c17 [formerly 17b26899d0c158c77ea0ab4cfa243e92c2145b6b]]
Former-commit-id: 4caea7e656e3718e1d462c5ed280aa6353368166 [formerly b82d884df55141a10251e84e54e0a40f84db2a5e]
Former-commit-id: 3798d603338416b18a4d427cf8b3cb87bac12ff6

SDK/include/NDK/Application.hpp

@@ -11,6 +11,7 @@
 #include <NDK/EntityOwner.hpp>
 #include <NDK/World.hpp>
 #include <Nazara/Core/Clock.hpp>
+#include <map>
 #include <list>
 #include <set>
 #include <vector>
@@ -35,7 +36,7 @@ namespace Ndk
 			#endif
 
 			inline Application();
-			inline Application(int argc, const char* argv[]);
+			Application(int argc, char* argv[]);
 			Application(const Application&) = delete;
 			Application(Application&&) = delete;
 			inline ~Application();
@@ -53,8 +54,14 @@ namespace Ndk
 			inline FPSCounterOverlay& GetFPSCounterOverlay(std::size_t windowIndex = 0U);
 			#endif
 
+			inline const std::set<Nz::String>& GetOptions() const;
+			inline const std::map<Nz::String, Nz::String>& GetParameters() const;
+
 			inline float GetUpdateTime() const;
 
+			inline bool HasOption(const Nz::String& option) const;
+			inline bool HasParameter(const Nz::String& key, Nz::String* value) const;
+
 			#ifndef NDK_SERVER
 			inline bool IsConsoleEnabled() const;
 			inline bool IsFPSCounterEnabled() const;
@@ -120,6 +127,8 @@ namespace Ndk
 			template<typename T> void SetupWindow(WindowInfo& info, T* renderTarget, std::true_type /*isRenderTarget*/);
 			template<typename T> void SetupWindow(WindowInfo& /*info*/, T* /*renderTarget*/, std::false_type /*isNotRenderTarget*/);
 
+			std::map<Nz::String, Nz::String> m_parameters;
+			std::set<Nz::String> m_options;
 			std::vector<WindowInfo> m_windows;
 			#endif
 			std::list<World> m_worlds;

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
 	*