From c00a13a29c56f55a483dcf492ad70e9319fec1cb Mon Sep 17 00:00:00 2001
From: Mathew Sutcliffe <oktal3700@gmail.com>
Date: Mon, 9 Jan 2017 02:21:03 +0000
Subject: [PATCH] refs #852 Added a floating-point onGround value in
 CAircraftParts.

---
 src/blackmisc/aviation/aircraftparts.cpp | 9 +++++++++
 src/blackmisc/aviation/aircraftparts.h   | 8 ++++++++
 2 files changed, 17 insertions(+)

diff --git a/src/blackmisc/aviation/aircraftparts.cpp b/src/blackmisc/aviation/aircraftparts.cpp
index 5f935d4e1..42cd607c0 100644
--- a/src/blackmisc/aviation/aircraftparts.cpp
+++ b/src/blackmisc/aviation/aircraftparts.cpp
@@ -133,5 +133,14 @@ namespace BlackMisc
             return this->m_engines.isEngineOn(number);
         }
 
+        double CAircraftParts::isOnGroundInterpolated() const
+        {
+            if (this->m_isOnGroundInterpolated < 0)
+            {
+                return this->m_isOnGround ? 1.0 : 0.0;
+            }
+            return this->m_isOnGroundInterpolated;
+        }
+
     } // namespace
 } // namespace
diff --git a/src/blackmisc/aviation/aircraftparts.h b/src/blackmisc/aviation/aircraftparts.h
index 416aa0d1e..d3376a924 100644
--- a/src/blackmisc/aviation/aircraftparts.h
+++ b/src/blackmisc/aviation/aircraftparts.h
@@ -116,6 +116,12 @@ namespace BlackMisc
             //! Set aircraft on ground
             void setOnGround(bool onGround) { m_isOnGround = onGround; }
 
+            //! Is aircraft on ground? (Smoothly interpolated between 0 and 1.)
+            double isOnGroundInterpolated() const;
+
+            //! Set aircraft on ground. (Smoothly interpolated between 0 and 1.)
+            void setOnGroundInterpolated(double onGround) { m_isOnGroundInterpolated = onGround; }
+
             //! Milliseconds to add to timestamp for interpolation
             void setTimeOffsetMs(qint64 offset) { this->m_timeOffsetMs = offset; }
 
@@ -135,6 +141,7 @@ namespace BlackMisc
             bool m_gearDown     = false;
             bool m_spoilersOut  = false;
             bool m_isOnGround   = false;
+            double m_isOnGroundInterpolated = -1;
             qint64 m_timeOffsetMs = 0;
 
             BLACK_METACLASS(
@@ -145,6 +152,7 @@ namespace BlackMisc
                 BLACK_METAMEMBER_NAMED(spoilersOut, "spoilers_out"),
                 BLACK_METAMEMBER_NAMED(engines, "engines"),
                 BLACK_METAMEMBER_NAMED(isOnGround, "on_ground"),
+                BLACK_METAMEMBER(isOnGroundInterpolated, 0, DisabledForJson | DisabledForComparison),
                 BLACK_METAMEMBER(timestampMSecsSinceEpoch, 0, DisabledForJson | DisabledForComparison),
                 BLACK_METAMEMBER(timeOffsetMs, 0, DisabledForJson | DisabledForComparison)
             );