Fix trace toggling for multiple vehicles

Author: rajat2004

Unreal/Plugins/AirSim/Source/SimHUD/SimHUD.cpp

@@ -88,7 +88,7 @@ void ASimHUD::inputEventToggleHelp()
 
 void ASimHUD::inputEventToggleTrace()
 {
-    simmode_->getVehicleSimApi()->toggleTrace();
+    simmode_->toggleTraceAll();
 }
 
 ASimHUD::ImageType ASimHUD::getSubwindowCameraType(int window_index)
@@ -135,7 +135,7 @@ void ASimHUD::updateWidgetSubwindowVisibility()
 
         if (camera != nullptr) {
             camera->setCameraTypeEnabled(camera_type, is_visible);
-            //sub-window captures don’t count as a request, set bCaptureEveryFrame and bCaptureOnMovement to display so we can show correctly the subwindow
+            //sub-window captures don't count as a request, set bCaptureEveryFrame and bCaptureOnMovement to display so we can show correctly the subwindow
             camera->setCameraTypeUpdate(camera_type, false);
         }
 

Unreal/Plugins/AirSim/Source/SimMode/SimModeBase.cpp

@@ -513,6 +513,14 @@ bool ASimModeBase::isRecording() const
     return FRecordingThread::isRecording();
 }
 
+void ASimModeBase::toggleTraceAll()
+{
+    for (auto sim_api : getApiProvider()->getVehicleSimApis()) {
+        auto* pawn_sim_api = static_cast<PawnSimApi*>(sim_api);
+        pawn_sim_api->toggleTrace();
+    }
+}
+
 const APIPCamera* ASimModeBase::getCamera(const msr::airlib::CameraDetails& camera_details) const
 {
     return camera_details.external ? getExternalCamera(camera_details.camera_name)

Unreal/Plugins/AirSim/Source/SimMode/SimModeBase.h

@@ -71,6 +71,8 @@ class AIRSIM_API ASimModeBase : public AActor
     virtual void stopRecording();
     virtual bool isRecording() const;
 
+    virtual void toggleTraceAll();
+
     void startApiServer();
     void stopApiServer();
     bool isApiServerStarted();