X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2FMoof%2FEngine.hh;h=f088dc56e85fcb663766594a2c9b454788e7c519;hb=3cba2347188d70f5ee6e401774b8f86acfd1a3b9;hp=2d7dfd6aa77b9ee56ebb591f7e7954c15b69875a;hpb=16d1a05b0777e97a45c48e2874aa4e5cc791282e;p=chaz%2Fyoink

diff --git a/src/Moof/Engine.hh b/src/Moof/Engine.hh
index 2d7dfd6..f088dc5 100644
--- a/src/Moof/Engine.hh
+++ b/src/Moof/Engine.hh
@@ -35,8 +35,8 @@
 
 #include <Moof/Dispatcher.hh>
 #include <Moof/Event.hh>
+#include <Moof/Exception.hh>
 #include <Moof/Math.hh>
-#include <Moof/Singleton.hh>
 
 
 namespace Mf {
@@ -45,15 +45,19 @@ namespace Mf {
 // forward declaration
 class Video;
 
-class Engine : public Singleton<Engine>
+class Engine
 {
-public:
+protected:
+
 	Engine(int argc, char* argv[], const std::string& configFile,
 			const std::string& name, const std::string& iconFile);
+
+public:
+
 	virtual ~Engine();
 
 	int run();
-	void stop();
+	void stop(int exitCode = 0);
 
 	void setTimestep(Scalar ts);
 	Scalar getTimestep();
@@ -63,20 +67,27 @@ public:
 	Video& getVideo();
 	long getFrameRate();
 
-	// Override these if you want.
+	// override these if you want
 	virtual void update(Scalar t, Scalar dt);
 	virtual void draw(Scalar alpha);
 	virtual void handleEvent(const Event& event);
 
-	struct Exception : std::runtime_error
+	struct Exception : public Mf::Exception
 	{
-		explicit Exception(const std::string& what_arg) :
-			std::runtime_error(what_arg) {}
+		explicit Exception(unsigned error) :
+			Mf::Exception(error) {}
+
+		void raise()
+		{
+			throw *this;
+		}
 	};
 
 private:
-	class EngineImpl;
-	boost::shared_ptr<EngineImpl> impl_;
+	Engine() {} // this class must be subclassed to be useful
+
+	class Impl;
+	boost::shared_ptr<Impl> impl_;
 };