From f279422d2d4225986ebc594ba6ea524943aba500 Mon Sep 17 00:00:00 2001
From: Herve <herve@moulticast.net>
Date: Wed, 29 Jan 2025 17:58:50 +0100
Subject: [PATCH] Discard updates from pilots above 5000ft and distance > 10nm

Todo: Replace hardcoded distance with configurable
---
 src/core/DataManager.cpp | 11 +++++++++++
 src/types/Pilot.h        |  5 +++++
 2 files changed, 16 insertions(+)

diff --git a/src/core/DataManager.cpp b/src/core/DataManager.cpp
index 46d1b5f..89cce22 100644
--- a/src/core/DataManager.cpp
+++ b/src/core/DataManager.cpp
@@ -287,6 +287,14 @@ DataManager::MessageType DataManager::deltaEuroscopeToBackend(const std::array<t
                                                               Json::Value& message) {
     message.clear();
 
+    // Do not push updates to server if simulated update or either of the conditions is met:
+    //  - Above 5000ft
+    //  - More than 10nm away from origin
+    if (!data[EuroscopeData].isSimulated &&
+        ((data[EuroscopeData].trueAltitude > 5000) || (data[EuroscopeData].distanceFromOrigin > 10.0))) {
+        return DataManager::MessageType::None;
+    }
+
     if (data[ServerData].callsign == "" && data[EuroscopeData].callsign != "") {
         return DataManager::MessageType::Post;
     } else {
@@ -516,6 +524,9 @@ types::Pilot DataManager::CFlightPlanToPilot(const EuroScopePlugIn::CFlightPlan
     // position data
     pilot.latitude = flightplan.GetFPTrackPosition().GetPosition().m_Latitude;
     pilot.longitude = flightplan.GetFPTrackPosition().GetPosition().m_Longitude;
+    pilot.trueAltitude = flightplan.GetFPTrackPosition().GetPressureAltitude();
+    pilot.distanceFromOrigin = flightplan.GetDistanceFromOrigin();
+    pilot.isSimulated = flightplan.GetSimulated();
 
     // flightplan & clearance data
     pilot.origin = flightplan.GetFlightPlanData().GetOrigin();
diff --git a/src/types/Pilot.h b/src/types/Pilot.h
index 5e9571f..b9bea3f 100644
--- a/src/types/Pilot.h
+++ b/src/types/Pilot.h
@@ -19,7 +19,12 @@ typedef struct Pilot_t {
 
     double latitude = 0.0;
     double longitude = 0.0;
+    
+    double trueAltitude = 0.0;
+    double distanceFromOrigin = 0.0;
+    
     bool taxizoneIsTaxiout = false;
+    bool isSimulated = false;
 
     // flightplan & clearance data