// Physical reach to authored donor storage contexts; no inventory mutation here.
class ERR_InfantryAmmoAccess
{
 protected IEntity m_Donor;
 protected IEntity m_Recipient;
 // Exact hierarchy exclusion prevents the truck's own cargo shell or recipient
 // equipment from occluding an interior-authored anchor. Other entities collide.
 protected bool Filter(notnull IEntity entity)
 {
  return !ERR_ConvoyRules.PartOf(entity, m_Donor) && !ERR_ConvoyRules.PartOf(entity, m_Recipient);
 }
 static bool Points(Vehicle donor, out array<vector> points)
 {
  points = {};
  if (!donor) return false;
  ActionsManagerComponent manager = ActionsManagerComponent.Cast(donor.FindComponent(ActionsManagerComponent));
  if (!manager || !manager.IsEnabled()) return false;
  array<UserActionContext> contexts = {}; manager.GetContextList(contexts);
  if (contexts.IsEmpty() || contexts.Count() > 64) return false;
  foreach (UserActionContext context : contexts)
  {
   if (!context) return false;
   array<BaseUserAction> actions = {}; context.GetActionsList(actions);
   if (actions.Count() > 16) return false;
   bool storage;
   foreach (BaseUserAction action : actions)
    if (action && action.GetOwner() == donor && SCR_OpenVehicleStorageAction.Cast(action)) storage = true;
   if (!storage) continue;
   vector matrix[4];
   if (!context.GetTransformationWorld(matrix) || !ERR_ForceRules.FiniteVector(matrix[3])) return false;
   points.Insert(matrix[3]);
  }
  return !points.IsEmpty();
 }
 bool Check(Vehicle donor, IEntity recipient)
 {
  ChimeraCharacter character = ChimeraCharacter.Cast(recipient);
  if (!donor || !character || !GetGame() || !GetGame().GetWorld()) return false;
  array<vector> points;
  if (!Points(donor, points)) return false;
  vector start = character.AimingPosition();
  if (!ERR_ForceRules.FiniteVector(start)) return false;
  m_Donor = donor; m_Recipient = recipient;
  foreach (vector point : points)
  {
   float distance = vector.Distance(start, point);
   if (!(distance >= 0.05 && distance <= 4)) continue;
   TraceParam trace = new TraceParam();
   trace.Start = start; trace.End = point;
   trace.Flags = TraceFlags.WORLD | TraceFlags.ENTS;
   trace.LayerMask = TRACE_LAYER_CAMERA;
   float fraction = GetGame().GetWorld().TraceMove(trace, Filter);
   if (fraction == 1) return true;
  }
  return false;
 }
 static bool Clear(Vehicle donor, IEntity recipient)
 {
  ERR_InfantryAmmoAccess access = new ERR_InfantryAmmoAccess();
  return access.Check(donor, recipient);
 }
}