fix: disable pocket config

#786

Author: Peter Vaiko

config/VehicleConfigurations.xml

@@ -163,6 +163,13 @@ You can define the following custom settings:
     Forced tip side index for unloading. For now only for an auger wagon.
     As an example the Hawe SUW 5000 has two tipside, but only the one with the pipe is needed. 
 
+- disablePocket: boolean
+    Disables creating a pocket for headland turns. Some harvesters, like mostly potato and other root vegetable
+    harvesters, are not good at making a pocket at the headland corner as they are very long but have a small
+    working width. We automatically try to disable pocket for most of the root vegetable harvesters, but some,
+    like the Oxbo, are not detected correctly. This setting can be used to disable the pocket creation for these
+    harvesters.
+
 -->
 <VehicleConfigurations>
 	<Configurations>

scripts/ai/strategies/AIDriveStrategyCombineCourse.lua

@@ -1416,7 +1416,8 @@ function AIDriveStrategyCombineCourse:startTurn(ix)
             self:debug('Headland turn but this a connecting track, use normal turn maneuvers.')
             AIDriveStrategyFieldWorkCourse.startTurn(self, ix)
         elseif self.course:isOnOutermostHeadland(ix) and self:isTurnOnFieldActive() and
-                not self.combineController:isRootVegetableHarvester()then
+                not self.combineController:isRootVegetableHarvester() and
+                not g_vehicleConfigurations:getRecursively(self.vehicle, 'disablePocket') then
             self:debug('Creating a pocket in the corner so the combine stays on the field during the turn')
             self.aiTurn = CombinePocketHeadlandTurn(self.vehicle, self, self.ppc, self.proximityController, self.turnContext,
                     self.course, self:getWorkWidth())