Add new Logger system.

- Supports multiple log recievers.
- Onscreen log needs to be re-written.
- Replaces GameWorld::logX().

rwengine/include/core/Logger.hpp

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+/**
+ * Handles and stores messages from different components
+ * 
+ * Dispatches recieved messages to logger outputs.
+ */
+class Logger
+{
+public:
+	enum MessageSeverity
+	{
+		Verbose,
+		Info,
+		Warning,
+		Error
+	};
+
+	struct LogMessage
+	{
+		/// The component that produced the message
+		std::string component;
+		/// Severity of the message.
+		MessageSeverity severity;
+		/// Logged message
+		std::string message;
+		
+		LogMessage(const std::string& cc,
+		           MessageSeverity ss,
+		           const std::string& mm)
+		: component(cc), severity(ss), message(mm) { }
+	};
+
+	/**
+	 * Interface for handling logged messages.
+	 * 
+	 * The Logger class will not clean up allocated MessageRecievers.
+	 */
+	struct MessageReciever
+	{
+		virtual void messageRecieved(const LogMessage&) = 0;
+	};
+	
+	void addReciever(MessageReciever* out);
+	void removeReciever(MessageReciever* out);
+	
+	void log(const std::string& component, Logger::MessageSeverity severity, const std::string& message);
+	
+	void verbose(const std::string& component, const std::string& message);
+	void info(const std::string& component, const std::string& message);
+	void warning(const std::string& component, const std::string& message);
+	void error(const std::string& component, const std::string& message);
+private:
+	std::vector<MessageReciever*> recievers;
+};
+
+class StdOutReciever : public Logger::MessageReciever
+{
+    virtual void messageRecieved(const Logger::LogMessage&);
+};

rwengine/include/engine/GameWorld.hpp

@@ -2,6 +2,8 @@
 #ifndef _GAMEWORLD_HPP_
 #define _GAMEWORLD_HPP_
 
+#include <core/Logger.hpp>
+
 #include <engine/GameData.hpp>
 #include <engine/GameState.hpp>
 #include <render/GameRenderer.hpp>
@@ -77,22 +79,7 @@ public:
 		std::string message;
 	};
 	
-	std::deque<LogEntry> log;
-	
-	/**
-	 * Displays an informative message
-	 */
-	void logInfo(const std::string& info);
-	
-	/**
-	 * Displays an alarming error
-	 */
-	void logError(const std::string& error);
-	
-	/**
-	 * Displays a comforting warning
-	 */
-    void logWarning(const std::string& warning);
+	Logger logger;
 	
 	/**
 	 * Loads an IDE into the game

rwengine/src/core/Logger.cpp

@@ -0,0 +1,59 @@
+#include <core/Logger.hpp>
+
+#include <algorithm>
+#include <iostream>
+#include <map>
+
+void Logger::log(const std::string& component, Logger::MessageSeverity severity, const std::string& message)
+{
+	LogMessage m { component, severity, message };
+
+	for(MessageReciever* r : recievers)
+	{
+		r->messageRecieved( m );
+	}
+}
+
+void Logger::addReciever(Logger::MessageReciever* out)
+{
+	recievers.push_back(out);
+}
+
+void Logger::removeReciever(Logger::MessageReciever* out)
+{
+	recievers.erase(std::remove(recievers.begin(), recievers.end(), out), recievers.end());
+}
+
+void Logger::error(const std::string& component, const std::string& message)
+{
+	log(component, Logger::Error, message);
+}
+
+void Logger::info(const std::string& component, const std::string& message)
+{
+	log(component, Logger::Info, message);
+}
+
+void Logger::warning(const std::string& component, const std::string& message)
+{
+	log(component, Logger::Warning, message);
+}
+
+void Logger::verbose(const std::string& component, const std::string& message)
+{
+	log(component, Logger::Verbose, message);
+}
+
+std::map<Logger::MessageSeverity, char> severityStr {
+	{Logger::Error, 'E'},
+	{Logger::Warning, 'W'},
+	{Logger::Info, 'I'},
+	{Logger::Verbose, 'V'}
+};
+
+void StdOutReciever::messageRecieved(const Logger::LogMessage& message)
+{
+	std::cout << severityStr[message.severity] << " [" << message.component << "] " << message.message << std::endl;
+}
+
+

rwengine/src/engine/GameData.cpp

@@ -600,10 +600,7 @@ char* GameData::openFile(const std::string& name)
 	}
 	else 
 	{
-		std::stringstream err;
-		err << "Unable to locate file " << name;
-		engine->logError(err.str());
-		std::cerr << err.str() << std::endl;
+		engine->logger.error("Data", "Unable to locate file: " + name);
 	}
 	
 	return nullptr;
@@ -654,10 +651,7 @@ FileHandle GameData::openFile2(const std::string &name)
 	}
 	else
 	{
-		std::stringstream err;
-		err << "Unable to locate file " << name;
-		engine->logError(err.str());
-		std::cerr << err.str() << std::endl;
+		engine->logger.error("Data", "Unable to locate file: " + name);
 	}
 	return nullptr;
 }

rwengine/src/engine/GameWorld.cpp

@@ -117,22 +117,6 @@ bool GameWorld::load()
 	return true;
 }
 
-void GameWorld::logInfo(const std::string& info)
-{
-	log.push_back({LogEntry::Info, gameTime, info});
-	std::cout << info << std::endl;
-}
-
-void GameWorld::logError(const std::string& error)
-{
-	log.push_back({LogEntry::Error, gameTime, error});
-}
-
-void GameWorld::logWarning(const std::string& warning)
-{
-	log.push_back({LogEntry::Warning, gameTime, warning});
-}
-
 bool GameWorld::defineItems(const std::string& name)
 {
 	auto i = gameData.ideLocations.find(name);
@@ -185,7 +169,7 @@ void GameWorld::runScript(const std::string &name)
 		script = new ScriptMachine(this, f, opcodes);
 	}
 	else {
-		logError("Failed to load SCM: " + name);
+		logger.error("World", "Failed to load SCM: " + name);
 	}
 }
 
@@ -267,7 +251,7 @@ InstanceObject *GameWorld::createInstance(const uint16_t id, const glm::vec3& po
 		}
 
 		if( modelname.empty() ) {
-			logWarning("Instance with missing model: " + std::to_string(id));
+			logger.warning("World", "Instance with missing model: " + std::to_string(id));
 		}
 		
 		auto instance = new InstanceObject(
@@ -428,7 +412,7 @@ VehicleObject *GameWorld::createVehicle(const uint16_t id, const glm::vec3& pos,
 			 sec = gameData.vehicleColours[palit->second[set].second];
 		}
 		else {
-			logWarning("No colour palette for vehicle " + vti->modelName);
+			logger.warning("World", "No colour palette for vehicle " + vti->modelName);
 		}
 		
 		auto wi = findObjectType<ObjectData>(vti->wheelModelID);

rwengine/src/render/GameRenderer.cpp

@@ -82,7 +82,7 @@ GameRenderer::GameRenderer(GameWorld* engine)
 	: engine(engine), renderer(new OpenGLRenderer), _renderAlpha(0.f),
 	map(engine, renderer), text(engine, this)
 {
-	engine->logInfo("[DRAW] " + renderer->getIDString());
+	engine->logger.info("Renderer", renderer->getIDString());
 
 	worldProg = renderer->createShader(
 				GameShaders::WorldObject::VertexShader,

rwengine/tests/test_Logger.cpp

@@ -0,0 +1,38 @@
+#include <boost/test/unit_test.hpp>
+#include <core/Logger.hpp>
+#include <test_globals.hpp>
+
+class CallbackReceiver : public Logger::MessageReciever
+{
+public:
+	std::function<void(const Logger::LogMessage&)> func;
+	
+	CallbackReceiver(std::function<void(const Logger::LogMessage&)> func)
+	: func(func) { }
+	
+    virtual void messageRecieved(const Logger::LogMessage& message)
+	{
+		func(message);
+	}
+};
+
+BOOST_AUTO_TEST_SUITE(LoggerTests)
+
+BOOST_AUTO_TEST_CASE(test_reciever)
+{
+	Logger log;
+	
+	Logger::LogMessage lastMessage("", Logger::Error, "");
+	
+	CallbackReceiver reciever([&](const Logger::LogMessage& m) { lastMessage = m; });
+	
+	log.addReciever(&reciever);
+	
+	log.info("Tests", "Test");
+	
+	BOOST_CHECK_EQUAL( lastMessage.component, "Tests" );
+	BOOST_CHECK_EQUAL( lastMessage.severity, Logger::Info );
+	BOOST_CHECK_EQUAL( lastMessage.message, "Test" );
+}
+
+BOOST_AUTO_TEST_SUITE_END()

rwgame/RWGame.cpp

@@ -19,6 +19,8 @@
 
 DebugDraw* debug;
 
+StdOutReciever logPrinter;
+
 RWGame::RWGame(const std::string& gamepath, int argc, char* argv[])
 	: engine(nullptr), inFocus(true), showDebugStats(false),
 	  accum(0.f), timescale(1.f)
@@ -64,6 +66,7 @@ RWGame::RWGame(const std::string& gamepath, int argc, char* argv[])
 	glewInit();
 
 	engine = new GameWorld(gamepath);
+	engine->logger.addReciever(&logPrinter);
 
 	// Initalize all the archives.
 	engine->gameData.loadIMG("/models/gta3");
@@ -106,7 +109,7 @@ RWGame::RWGame(const std::string& gamepath, int argc, char* argv[])
 	
 	StateManager::get().enter(loading);
 
-	engine->logInfo("Started");
+	engine->logger.info("Game", "Started");
 }
 
 RWGame::~RWGame()
@@ -220,7 +223,7 @@ void RWGame::tick(float dt)
 			}
 			catch( SCMException& ex ) {
 				std::cerr << ex.what() << std::endl;
-				engine->logError( ex.what() );
+				engine->logger.error( "Script", ex.what() );
 				throw;
 			}
 		}
@@ -372,7 +375,7 @@ void RWGame::renderDebugStats(float time)
 	ti.size = 15.f;
 	engine->renderer.text.renderText(ti);
 
-	while( engine->log.size() > 0 && engine->log.front().time + 10.f < engine->gameTime ) {
+	/*while( engine->log.size() > 0 && engine->log.front().time + 10.f < engine->gameTime ) {
 		engine->log.pop_front();
 	}
 
@@ -398,7 +401,7 @@ void RWGame::renderDebugStats(float time)
 
 		engine->renderer.text.renderText(ti);
 		ti.screenPosition.y -= ti.size;
-	}
+	}*/
 	
 	for( int i = 0; i < engine->state.text.size(); )
 	{