add try to event

src/event/event.hpp

@@ -42,7 +42,21 @@ namespace VE
     void connect(event_fn<event> fn) { funcs.push_back(fn); };
     void emit(event e)
     {
-      for(auto& f : funcs) f(e);
+      for(auto& f : funcs) 
+      {
+        try
+        {
+          f(e);
+        }
+        catch(std::exception& e)
+        {
+          hack::error()(e.what());
+        }
+        catch(...)
+        {
+          hack::error()("ooops");
+        }
+      }
     }
   };
 }