public void InjectDependencies(
     UIStateMachineBrain brain, TechTreeDisplay techTreeDisplay
     )
 {
     Brain           = brain;
     TechTreeDisplay = techTreeDisplay;
 }
 public void InjectDependencies(
     UIStateMachineBrain brain, TechTreeDisplay techTreeDisplay,
     CivSelectionPanel civSelectionPanel
     )
 {
     Brain             = brain;
     TechTreeDisplay   = techTreeDisplay;
     CivSelectionPanel = civSelectionPanel;
 }