output file

include/ActionInitialization.hh

@@ -32,6 +32,7 @@
 
 #include "G4VUserActionInitialization.hh"
 #include "PrimaryGeneratorAction.hh"
+#include "RunAction.hh"
 
 namespace B4
 {
@@ -66,12 +67,21 @@ class ActionInitialization : public G4VUserActionInitialization
       fDetConstruction = det;
     }
 
+    void setFileName(G4String fileName){
+      this->filename = fileName;
+      if(runact!=nullptr){
+          runact -> setFileName(fileName);
+      }
+    }
+
   private:
     B4::DetectorConstruction* fDetConstruction = nullptr;
     mutable B4::PrimaryGeneratorAction * gen = nullptr;
+    mutable B4::RunAction * runact = nullptr;
     G4double minEnergy=1000;
     G4double maxEnergy=1000;
     G4String partSpecies="e-";
+    G4String filename="";
 };
 
 }