if MainForm.YAutoAim.Checked = True then
    begin
      if (Shelldata + dwYAimStatePtrs <> 0) then
        WPMFloat(Shelldata + dwYAimStatePtrs, ArcTan2(MyY - EnemyY - _Height,
          Sqrt(Sqr(EnemyX - MyX) + Sqr(EnemyZ - MyZ))));
    end;