From 26101b66cc84648be147ec60eb571d40cfe873d7 Mon Sep 17 00:00:00 2001
From: Malin E <malin.ejdbo@gmail.com>
Date: Wed, 6 Oct 2021 13:05:14 +0200
Subject: [PATCH] Add action to play timelapse in reverse

---
 .../solarsystem/missions/jwst/timelaps.asset  | 19 +++++++++++++++++++
 data/profiles/jwst.profile                    | 10 +++++++++-
 include/openspace/scripting/scriptscheduler.h |  5 +++++
 src/scripting/scriptscheduler.cpp             |  4 ++++
 src/util/timemanager.cpp                      |  2 ++
 5 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/data/assets/scene/solarsystem/missions/jwst/timelaps.asset b/data/assets/scene/solarsystem/missions/jwst/timelaps.asset
index 130a660147..53b153c874 100644
--- a/data/assets/scene/solarsystem/missions/jwst/timelaps.asset
+++ b/data/assets/scene/solarsystem/missions/jwst/timelaps.asset
@@ -266,6 +266,24 @@ local playForwards = {
   IsLocal = false
 }
 
+local playBackwards = {
+  Identifier = "jwst.play.backwards",
+  Name = "Play JWST in reverse",
+  Command = [[
+    openspace.scriptScheduler.clear();
+    openspace.time.setDeltaTime(-1);
+    openspace.time.setTime('2018 OCT 16 09:06:04');
+    ]] .. tostring(timelaps) .. [[
+    openspace.scriptScheduler.loadScheduledScript(
+      "2018 OCT 01 14:06:02",
+      "openspace.scriptScheduler.clear()"
+    )
+  ]],
+  Documentation = "Jump to the end of JWST deployment time and play the timelaps of deployment in reverse",
+  GuiPath = "/JWST",
+  IsLocal = false
+}
+
 local clearPlay = {
   Identifier = "jwst.play.clear",
   Name = "Clear JWST timelaps",
@@ -285,6 +303,7 @@ local clearPlay = {
 
 asset.onInitialize(function()
   openspace.action.registerAction(playForwards)
+  openspace.action.registerAction(playBackwards)
   openspace.action.registerAction(clearPlay)
 end)
 
diff --git a/data/profiles/jwst.profile b/data/profiles/jwst.profile
index 562c025809..b717a1868c 100644
--- a/data/profiles/jwst.profile
+++ b/data/profiles/jwst.profile
@@ -59,7 +59,7 @@
     {
       "documentation": "Toggle all planet and moon trails, except the Moon",
       "gui_path": "/JWST",
-      "identifier": "profile.toggel.trails_not_moon",
+      "identifier": "profile.toggle.trails_not_moon",
       "is_local": false,
       "name": "Toggle trails (except Moon)",
       "script": "local list = openspace.getProperty('{planetTrail_solarSystem}.Renderable.Enabled'); for _,v in pairs(list) do openspace.setPropertyValueSingle(v, not openspace.getPropertyValue(v)) end local moonlist = openspace.getProperty('{moonTrail_solarSystem}.Renderable.Enabled') for _,v in pairs(moonlist) do openspace.setPropertyValueSingle(v, not openspace.getPropertyValue(v)) end openspace.setPropertyValueSingle('Scene.MoonTrail.Renderable.Enabled', true)"
@@ -152,9 +152,17 @@
       "action": "jwst.play.forwards",
       "key": "M"
     },
+    {
+      "action": "jwst.play.backwards",
+      "key": "N"
+    },
     {
       "action": "jwst.play.clear",
       "key": "B"
+    },
+    {
+      "action": "profile.toggle.trails_not_moon",
+      "key": "G"
     }
   ],
   "mark_nodes": [
diff --git a/include/openspace/scripting/scriptscheduler.h b/include/openspace/scripting/scriptscheduler.h
index 9beafef1d4..dd36cac09c 100644
--- a/include/openspace/scripting/scriptscheduler.h
+++ b/include/openspace/scripting/scriptscheduler.h
@@ -110,6 +110,11 @@ public:
      */
     double currentTime() const;
 
+    /**
+     * Updates the current time to the given j2000 time value
+     */
+    void setCurrentTime(double time);
+
     /**
      * \returns a vector of all scripts that has been loaded
      */
diff --git a/src/scripting/scriptscheduler.cpp b/src/scripting/scriptscheduler.cpp
index 9c90c7f28c..46b906b180 100644
--- a/src/scripting/scriptscheduler.cpp
+++ b/src/scripting/scriptscheduler.cpp
@@ -213,6 +213,10 @@ double ScriptScheduler::currentTime() const {
     return _currentTime;
 }
 
+void ScriptScheduler::setCurrentTime(double time) {
+    _currentTime = time;
+}
+
 std::vector<ScriptScheduler::ScheduledScript> ScriptScheduler::allScripts() const {
     std::vector<ScheduledScript> result;
     for (size_t i = 0; i < _timings.size(); ++i) {
diff --git a/src/util/timemanager.cpp b/src/util/timemanager.cpp
index 89f898dbd9..b76c66da08 100644
--- a/src/util/timemanager.cpp
+++ b/src/util/timemanager.cpp
@@ -30,6 +30,7 @@
 #include <openspace/interaction/keybindingmanager.h>
 #include <openspace/interaction/sessionrecording.h>
 #include <openspace/network/parallelpeer.h>
+#include <openspace/scripting/scriptscheduler.h>
 #include <openspace/util/keys.h>
 #include <openspace/util/timeline.h>
 #include <ghoul/logging/logmanager.h>
@@ -405,6 +406,7 @@ void TimeManager::setTimeNextFrame(Time t) {
     _shouldSetTime = true;
     _timeNextFrame = std::move(t);
     clearKeyframes();
+    global::scriptScheduler->setCurrentTime(t.j2000Seconds());
 }
 
 void TimeManager::setDeltaTime(double deltaTime) {