しょうがねぇなぁ

var IsItemPossession = function(id) {
var i, unit;
var item = root.getBaseData().getItemList().getDataFromId(id);
var list = PlayerList.getMainList();
var count = list.getCount();

if (StockItemControl.getMatchItem(item) !== null) {
return true;
}
for (i = 0; i < count; i++) {
unit = list.getData(i);
if (UnitItemControl.getMatchItem(unit, item) !== null) {
return true;
}
}
return false;
};