Sdk/Application: Add command-line arguments handling

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Former-commit-id: 45f34e16b8d6a91d407df30c36e598ff3270e50f

SDK/src/NDK/Application.cpp

@@ -3,6 +3,7 @@
 // For conditions of distribution and use, see copyright notice in Prerequesites.hpp
 
 #include <NDK/Application.hpp>
+#include <regex>
 
 #ifndef NDK_SERVER
 #include <NDK/Components/CameraComponent.hpp>
@@ -21,6 +22,54 @@ namespace Ndk
 	* \brief NDK class that represents the application, it offers a set of tools to ease the development
 	*/
 
+	/*!
+	* \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, char* argv[]) :
+	Application()
+	{
+		std::regex optionRegex(R"(-(\w+))");
+		std::regex valueRegex(R"(-(\w+)\s*=\s*(.+))");
+
+		std::smatch results;
+
+		for (int i = 1; i < argc; ++i)
+		{
+			std::string argument(argv[i]);
+			if (std::regex_match(argument, results, valueRegex))
+			{
+				Nz::String key(results[1].str());
+				Nz::String value(results[2].str());
+
+				m_parameters[key.ToLower()] = value;
+				NazaraDebug("Registred parameter from command-line: " + key.ToLower() + "=" + value);
+			}
+			else if (std::regex_match(argument, results, optionRegex))
+			{
+				Nz::String option(results[1].str());
+
+				m_options.insert(option);
+				NazaraDebug("Registred option from command-line: " + option);
+			}
+			else
+				NazaraWarning("Ignored command-line argument #" + Nz::String::Number(i) + " \"" + argument + '"');
+		}
+
+		if (HasOption("console"))
+			EnableConsole(true);
+
+		if (HasOption("fpscounter"))
+			EnableFPSCounter(true);
+	}
+
 	/*!
 	* \brief Runs the application by updating worlds, taking care about windows, ...
 	*/