public final function listBuildings($start = null, $limit = null)
{
$query = "SELECT * FROM buildings ";
if ($start != null && $limit != null) {
$start = (int) $start;
$limit = (int) $limit;
$query .= "LIMIT {$start}, {$limit} ";
}
$res = $this->DBRef->GetAllResults($query);
if (count($res) == 0) {
return null;
} else {
$arr = array();
for ($i = 0, $x = count($res); $i < $x; $i++) {
$building = new Building($res[$i]['ID'], $res[$i]['NAME']);
$building->setCost($res[$i]['COST']);
$building->setXSize($res[$i]['XSIZE']);
$building->setYSize($res[$i]['YSIZE']);
$building->setProfit($res[$i]['PROFIT']);
$building->setLapse($res[$i]['LAPSE']);
array_push($arr, $building);
}
return $arr;
}
}