public function getAvailableUnits($id)
{
$file = file_get_contents("units.txt");
$units = json_decode($file, true);
$position = Position::find($id);
$x = $position->x;
$y = $position->y;
$position = Position::where('y', $y)->where('x', $x)->get()->lists('id');
$city = City::whereIn('position_id', $position)->get();
if (count($city) == 0) {
return $city;
} else {
switch ($city[0]->tier) {
case 1:
$txt = 'tier1';
break;
case 2:
$txt = 'tier2';
break;
}
$units = Unit::whereIn('Id', $units[$txt])->with('resource')->get();
return \App\CityEffectApplier::modifyUnitPricesByCity($units, $city[0]);
}
}