refactor: Remove pythia6 dependency in Geant4 config files

fuhlig1 · karabowi · commit 2eb8719f89d9 · 2025-09-09T14:56:40.000+02:00
Instead of hardcoding the decayer get it from VMC.
diff --git a/examples/common/gconfig/g4Config.C b/examples/common/gconfig/g4Config.C
@@ -52,7 +52,6 @@ void Config()
 
     if (FairRunSim::Instance()->IsExtDecayer()) {
         TVirtualMCDecayer* decayer = TVirtualMC::GetMC()->GetDecayer();
-        //      TVirtualMCDecayer* decayer = TPythia6Decayer::Instance();
         geant4->SetExternalDecayer(decayer);
     }
 
diff --git a/examples/simulation/Tutorial4/gconfig/g4Config.C b/examples/simulation/Tutorial4/gconfig/g4Config.C
@@ -48,7 +48,7 @@ void Config()
     geant4->SetStack(stack);
 
     if (FairRunSim::Instance()->IsExtDecayer()) {
-        TVirtualMCDecayer* decayer = TPythia6Decayer::Instance();
+        TVirtualMCDecayer* decayer = TVirtualMC::GetMC()->GetDecayer();
         geant4->SetExternalDecayer(decayer);
     }
 
diff --git a/templates/project_root_containers/gconfig/g4Config.C b/templates/project_root_containers/gconfig/g4Config.C
@@ -53,7 +53,7 @@ void Config()
     geant4->SetStack(stack);
 
     if (FairRunSim::Instance()->IsExtDecayer()) {
-        TVirtualMCDecayer* decayer = TPythia6Decayer::Instance();
+        TVirtualMCDecayer* decayer = TVirtualMC::GetMC()->GetDecayer();
         geant4->SetExternalDecayer(decayer);
     }
 
diff --git a/templates/project_stl_containers/gconfig/g4Config.C b/templates/project_stl_containers/gconfig/g4Config.C
@@ -53,7 +53,7 @@ void Config()
     geant4->SetStack(stack);
 
     if (FairRunSim::Instance()->IsExtDecayer()) {
-        TVirtualMCDecayer* decayer = TPythia6Decayer::Instance();
+        TVirtualMCDecayer* decayer = TVirtualMC::GetMC()->GetDecayer();
         geant4->SetExternalDecayer(decayer);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -52,7 +52,6 @@ void Config()`
`52`	`52`
`53`	`53`	`if (FairRunSim::Instance()->IsExtDecayer()) {`
`54`	`54`	`TVirtualMCDecayer* decayer = TVirtualMC::GetMC()->GetDecayer();`
`55`		`- // TVirtualMCDecayer* decayer = TPythia6Decayer::Instance();`
`56`	`55`	`geant4->SetExternalDecayer(decayer);`
`57`	`56`	`}`
`58`	`57`
Original file line number	Diff line number	Diff line change
`@@ -48,7 +48,7 @@ void Config()`
`48`	`48`	`geant4->SetStack(stack);`
`49`	`49`
`50`	`50`	`if (FairRunSim::Instance()->IsExtDecayer()) {`
`51`		`- TVirtualMCDecayer* decayer = TPythia6Decayer::Instance();`
	`51`	`+ TVirtualMCDecayer* decayer = TVirtualMC::GetMC()->GetDecayer();`
`52`	`52`	`geant4->SetExternalDecayer(decayer);`
`53`	`53`	`}`
`54`	`54`
Original file line number	Diff line number	Diff line change
`@@ -53,7 +53,7 @@ void Config()`
`53`	`53`	`geant4->SetStack(stack);`
`54`	`54`
`55`	`55`	`if (FairRunSim::Instance()->IsExtDecayer()) {`
`56`		`- TVirtualMCDecayer* decayer = TPythia6Decayer::Instance();`
	`56`	`+ TVirtualMCDecayer* decayer = TVirtualMC::GetMC()->GetDecayer();`
`57`	`57`	`geant4->SetExternalDecayer(decayer);`
`58`	`58`	`}`
`59`	`59`