Add keep engine of vehicles running after getting out (#6885)

Adds a feature which leaves the vehicle engine running after getting out. So, it requires the driver to switch off the engine of the vehicle.

addons/vehicles/XEH_preInit.sqf

@@ -6,4 +6,37 @@ PREP_RECOMPILE_START;
 #include "XEH_PREP.hpp"
 PREP_RECOMPILE_END;
 
+#include "initSettings.sqf"
+
+[
+    "AllVehicles",
+    "initPost",
+    {
+        params ["_vehicle"];
+        _vehicle setVariable [QGVAR(engineState), isEngineOn _vehicle];
+    }
+] call CBA_fnc_addClassEventHandler;
+[
+    "AllVehicles",
+    "engine",
+    {
+        params ["_vehicle", "_state"];
+        _vehicle setVariable [QGVAR(engineState), _state];
+    }
+] call CBA_fnc_addClassEventHandler;
+[
+    "AllVehicles",
+    "getout",
+    {
+        params ["_vehicle", "_position", "_unit"];
+        if (!GVAR(keepEngineRunning)) exitWith {};
+        if (_unit == ACE_player && {_position == "driver" && {_vehicle getVariable [QGVAR(engineState), false]}}) then {
+            [{
+                params ["_vehicle"];
+                [QEGVAR(common,engineOn), _this, _vehicle] call CBA_fnc_targetEvent;
+            }, [_vehicle, true]] call CBA_fnc_execNextFrame;
+        };
+    }
+] call CBA_fnc_addClassEventHandler;
+
 ADDON = true;

addons/vehicles/initSettings.sqf

@@ -0,0 +1,9 @@
+
+[
+    QGVAR(keepEngineRunning),
+    "CHECKBOX",
+    [LSTRING(SettingKeepEngineRunningName), LSTRING(SettingKeepEngineRunningDesc)],
+    localize ELSTRING(common,ACEKeybindCategoryVehicles),
+    false, // default value
+    true // isGlobal
+] call CBA_settings_fnc_init;

addons/vehicles/stringtable.xml

@@ -67,5 +67,13 @@
             <Japanese>速度制限を減らす</Japanese>
             <Polish>Zmniejsz ograniczenie prędkości</Polish>
         </Key>
+        <Key ID="STR_ACE_Vehicles_SettingKeepEngineRunningName">
+            <English>Disable automatic engine shut-off</English>
+            <German>Motor nach Verlassen laufen lassen</German>
+        </Key>
+        <Key ID="STR_ACE_Vehicles_SettingKeepEngineRunningDesc">
+            <English>Prevent the automatic shut-off of the engine when exiting vehicles.</English>
+            <German>Verhindere das automatische Abschalten des Motors beim Verlassen des Fahrzeugs.</German>
+        </Key>
     </Package>
 </Project>