Compile fix in TimeConversion

Reenable display of shutdown timer
Add prompt informing the user of ability to abort

src/engine/openspaceengine.cpp

@@ -1319,6 +1319,10 @@ void OpenSpaceEngine::drawOverlays() {
             // and we won't need this if we are shutting down
             _renderEngine->renderCameraInformation();
         }
+        else {
+            // If we are in shutdown mode, we can display the remaining time
+            _renderEngine->renderShutdownInformation(_shutdown.timer, _shutdown.waitTime);
+        }
         _console->render();
     }
 

src/rendering/renderengine.cpp

@@ -598,6 +598,15 @@ void RenderEngine::renderShutdownInformation(float timer, float fullTime) {
         timer,
         fullTime
     );
+
+    RenderFontCr(
+        *_fontDate,
+        penPosition,
+        "%s",
+        // Important: length of this string is the same as the shutdown time text
+        // to make them align
+        "Press ESC again to abort"
+    );
 }
 
 void RenderEngine::postDraw() {

src/util/timeconversion.cpp

@@ -24,6 +24,8 @@
 
 #include <openspace/util/timeconversion.h>
 
+#include <ghoul/glm.h>
+
 #include <chrono>
 
 namespace {
@@ -43,7 +45,7 @@ namespace {
 namespace openspace {
 
 std::pair<double, std::string> simplifyTime(double seconds) {
-    double secondsVal = abs(seconds);
+    double secondsVal = glm::abs(seconds);
 
     if (secondsVal > 1e-3 && secondsVal < SecondsPerMinute) {
         return { seconds, seconds == 1.0 ? "second" : "seconds" };