public String grab(WumplusEnvironment we) {
        Gold gold = we.gold;
        CaveNode node = we.grid.get(new Point(gold.x, gold.y));

        if (this.x == gold.x && this.y == gold.y && !gold.taken) {
            gold.taken = true;
            node.hasGold = false;
            this.hasGold = true;
            this.score += scoreForGold;
            return "GOLDGET";
        }

        return "";
    }