updated importParticles() and added getter for mEntries

Author: DanielSamitz

MC/config/PWGDQ/external/generator/GeneratorCocktail.C

@@ -33,15 +33,16 @@ class GeneratorCocktail_class : public Generator
       int nPart = mParticles.size();
       g->importParticles();
       for (auto p : g->getParticles()) {
-        if (p.GetFirstMother() > -1)
-          p.SetFirstMother(p.GetFirstMother() + nPart);
-        if (p.GetSecondMother() > -1)
-          p.SetLastMother(p.GetSecondMother() + nPart);
-        if (p.GetFirstDaughter() > -1)
-          p.SetFirstDaughter(p.GetFirstDaughter() + nPart);
-        if (p.GetLastDaughter() > -1)
-          p.SetLastDaughter(p.GetLastDaughter() + nPart);
         mParticles.push_back(p);
+        auto& pEdit = mParticles.back();
+        if (pEdit.GetFirstMother() > -1)
+          pEdit.SetFirstMother(pEdit.GetFirstMother() + nPart);
+        if (pEdit.GetSecondMother() > -1)
+          pEdit.SetLastMother(pEdit.GetSecondMother() + nPart);
+        if (pEdit.GetFirstDaughter() > -1)
+          pEdit.SetFirstDaughter(pEdit.GetFirstDaughter() + nPart);
+        if (pEdit.GetLastDaughter() > -1)
+          pEdit.SetLastDaughter(pEdit.GetLastDaughter() + nPart);
       }
       g->clearParticles();
     }
@@ -55,6 +56,11 @@ class GeneratorCocktail_class : public Generator
     return;
   };
 
+  std::vector<Generator*>* getGenerators()
+  {
+    return mEntries;
+  };
+
  private:
   ///
   std::vector<Generator*>* mEntries = new std::vector<Generator*>(); // vector of Generator