4 files changed, 43 insertions, 0 deletions
diff --git a/indra/llinventory/llsettingsbase.cpp b/indra/llinventory/llsettingsbase.cpp
index 76b1e0b2a6..b677eb36df 100644
--- a/indra/llinventory/llsettingsbase.cpp
+++ b/indra/llinventory/llsettingsbase.cpp
@@ -38,6 +38,8 @@ namespace
     const LLSettingsBase::TrackPosition BREAK_POINT = 0.5;
 }
 
+const LLSettingsBase::TrackPosition LLSettingsBase::INVALID_TRACKPOS(-1.0);
+
 //=========================================================================
 std::ostream &operator <<(std::ostream& os, LLSettingsBase &settings)
 {
diff --git a/indra/llinventory/llsettingsbase.h b/indra/llinventory/llsettingsbase.h
index 0920af4726..4ebec4a99d 100644
--- a/indra/llinventory/llsettingsbase.h
+++ b/indra/llinventory/llsettingsbase.h
@@ -61,6 +61,7 @@ public:
     typedef F64Seconds Seconds;
     typedef F64        BlendFactor;
     typedef F32        TrackPosition; // 32-bit as these are stored in LLSD as such
+    static const TrackPosition INVALID_TRACKPOS;
 
     static const std::string SETTING_ID;
     static const std::string SETTING_NAME;
diff --git a/indra/llinventory/llsettingsdaycycle.cpp b/indra/llinventory/llsettingsdaycycle.cpp
index e000b8f03f..807d8218a1 100644
--- a/indra/llinventory/llsettingsdaycycle.cpp
+++ b/indra/llinventory/llsettingsdaycycle.cpp
@@ -530,6 +530,14 @@ bool LLSettingsDay::moveTrackKeyframe(S32 trackno, const LLSettingsBase::TrackPo
     CycleTrack_t::iterator iter = track.find(old_frame);
     if (iter != track.end())
     {
+        /*TODO check that we are not moving too close to another keyframe */
+//         CycleTrack_t::value_type existing = getSettingsNearKeyfarme(new_frame, trackno, 2.5f);
+//         if ((*iter).first != existing.first)
+//         {
+//             LL_WARNS("DAYCYCLE") << "Track too close to existing track.  Not moving." << LL_ENDL;
+//             return false;
+//         }
+
         LLSettingsBase::ptr_t base = iter->second;
         track.erase(iter);
         track[llclamp(new_frame, 0.0f, 1.0f)] = base;
@@ -624,6 +632,37 @@ LLSettingsBase::ptr_t LLSettingsDay::getSettingsAtKeyframe(const LLSettingsBase:
     return LLSettingsBase::ptr_t();
 }
 
+LLSettingsDay::CycleTrack_t::value_type LLSettingsDay::getSettingsNearKeyfarme(const LLSettingsBase::TrackPosition &keyframe, S32 track, F32 fudge) const
+{
+    if ((track < 0) || (track >= TRACK_MAX))
+    {
+        LL_WARNS("DAYCYCLE") << "Attempt to get track (#" << track << ") out of range!" << LL_ENDL;
+        return CycleTrack_t::value_type(TrackPosition(INVALID_TRACKPOS), LLSettingsBase::ptr_t());
+    }
+
+    if (mDayTracks[track].empty())
+    {
+        LL_INFOS("DAYCYCLE") << "Empty track" << LL_ENDL;
+        return CycleTrack_t::value_type(TrackPosition(INVALID_TRACKPOS), LLSettingsBase::ptr_t());
+    }
+
+    TrackPosition startframe(keyframe - fudge);
+    if (startframe < 0.0f)
+        startframe = 1.0f + startframe;
+
+    CycleTrack_t::iterator it = get_wrapping_atafter(const_cast<CycleTrack_t &>(mDayTracks[track]), startframe);
+
+    F32 dist = get_wrapping_distance(startframe, (*it).first);
+
+    LL_WARNS("LAPRAS") << "[" << startframe << " ... " << keyframe << " -> " << (*it).first << "@" << dist << LL_ENDL;
+
+
+    if (dist <= (fudge * 2.0f))
+        return (*it);
+
+    return CycleTrack_t::value_type(TrackPosition(INVALID_TRACKPOS), LLSettingsBase::ptr_t());
+}
+
 void LLSettingsDay::clearTrack(S32 track)
 {
     if ((track < 0) || (track >= TRACK_MAX))
diff --git a/indra/llinventory/llsettingsdaycycle.h b/indra/llinventory/llsettingsdaycycle.h
index cc6e27b296..5aa6e91183 100644
--- a/indra/llinventory/llsettingsdaycycle.h
+++ b/indra/llinventory/llsettingsdaycycle.h
@@ -100,6 +100,7 @@ public:
     LLSettingsSkyPtr_t          getSkyAtKeyframe(const LLSettingsBase::TrackPosition& keyframe, S32 track) const;
     void                        setSettingsAtKeyframe(const LLSettingsBase::ptr_t &settings, const LLSettingsBase::TrackPosition& keyframe, S32 track);
     LLSettingsBase::ptr_t       getSettingsAtKeyframe(const LLSettingsBase::TrackPosition& keyframe, S32 track) const;
+    CycleTrack_t::value_type    getSettingsNearKeyfarme(const LLSettingsBase::TrackPosition &keyframe, S32 track, F32 fudge) const;
     void                        clearTrack(S32 track);
 
         //---------------------------------------------------------------------