Add list of delta time steps, stepping functions and keybindings

include/openspace/scene/profile.h

@@ -151,6 +151,7 @@ private:
     std::vector<Property> properties;
     std::vector<Keybinding> keybindings;
     std::optional<Time> time;
+    std::vector<std::string> deltaTimes;
     std::optional<CameraType> camera;
     std::vector<std::string> markNodes;
     std::vector<std::string> additionalScripts;

include/openspace/util/timemanager.h

@@ -80,6 +80,9 @@ public:
     double deltaTime() const;
     bool isPaused() const;
 
+    // TEST: delta time steps
+    void setDeltaTimeSteps(const std::vector<double> deltaTimes);
+
     float defaultTimeInterpolationDuration() const;
     float defaultDeltaTimeInterpolationDuration() const;
     float defaultPauseInterpolationDuration() const;
@@ -90,6 +93,10 @@ public:
     void interpolateDeltaTime(double targetDeltaTime, double durationSeconds);
     void interpolatePause(bool pause, double durationSeconds);
 
+    // TEST
+    void interpolateNextDeltaTimeStep(double durationSeconds);
+    void interpolatePreviousDeltaTimeStep(double durationSeconds);
+
     void addKeyframe(double timestamp, TimeKeyframeData kf);
     void removeKeyframesBefore(double timestamp, bool inclusive = false);
     void removeKeyframesAfter(double timestamp, bool inclusive = false);
@@ -126,6 +133,9 @@ private:
     double _lastDeltaTime = 0.0;
     double _lastTargetDeltaTime = 0.0;
 
+    // TEST: delta time steps
+    std::vector<double> _deltaTimeSteps;
+
     properties::FloatProperty _defaultTimeInterpolationDuration;
     properties::FloatProperty _defaultDeltaTimeInterpolationDuration;
     properties::FloatProperty _defaultPauseInterpolationDuration;