ENH: Print the user controls

Print the user controls at the start
of the simulation.

Source/SimulationManager/imstkSimulationManager.cpp

@@ -368,6 +368,8 @@ SimulationManager::startViewer(const bool debug /*= true*/)
     // Start Rendering
     if (!m_viewer->isRendering())
     {
+        this->printUserControlsInfo();
+
         LOG(INFO) << "Starting viewer";
 
         m_viewer->startRenderingLoop(); // Infinite loop
@@ -382,6 +384,20 @@ SimulationManager::startViewer(const bool debug /*= true*/)
     }
 }
 
+void
+SimulationManager::printUserControlsInfo()
+{
+    LOG(INFO) <<
+        "\n------------------------\n" <<
+        "     User controls\n" <<
+        "------------------------\n" <<
+        "<space> - pause or unpause simulation\n" <<
+        "  R/r   - reset simulation\n" <<
+        "  D/d   - toggle between debug and simulation rendering modes\n" <<
+        "  P/p   - Display render frame rate on the screen\n" <<
+        "------------------------\n\n";
+}
+
 void
 SimulationManager::runSimulation()
 {

Source/SimulationManager/imstkSimulationManager.h

@@ -151,6 +151,11 @@ public:
     ///
     void startViewer(const bool debug = true);
 
+    ///
+    /// \brief Print user keyboard controls
+    ///
+    void printUserControlsInfo();
+
     ///
     /// \brief Launch simulation for the first time.
     /// 1. Initialize the active scene if not initialized already.