Server/api/actions/getplace.php

<?php

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

$data = [
    "teamid" => null,
    "ownerid" => null,
    "currentlife" => 0,
    "maxlife" => 0,
    "artifacts" => []
];

if ($database->has("locations", ["osmid" => $VARS["id"]])) {
    $gameprops = $database->get("locations", ["teamid", "ownerid", "currentlife", "maxlife"], ["osmid" => $VARS["id"]]);
    foreach ($gameprops as $key => $value) {
        $data[$key] = $value;
    }
    $artifacts = $database->select("artifacts", [
        "[>]locations" => "locationid",
        "[>]items" => "itemid"
            ], [
        "artifacts.artuuid (id)", "artifacts.currentlife (energy)", "artifacts.maxlife (maxenergy)", "artifacts.itemid", "items.icon", "items.color"
            ], [
        "locations.osmid" => $VARS["id"]
    ]);
    $data["artifacts"] = $artifacts;
}

exitWithJson(["status" => "OK", "place" => $data]);