goTo (args, util) {
        const targetXY = this.getTargetXY(args.TO, util);
        ：
    }

    getTargetXY (targetName, util) {
        ：
        } else if (targetName === '_random_') {
            const stageWidth = this.runtime.constructor.STAGE_WIDTH;
            const stageHeight = this.runtime.constructor.STAGE_HEIGHT;
            targetX = Math.round(stageWidth * (Math.random() - 0.5));
            targetY = Math.round(stageHeight * (Math.random() - 0.5));
        ：
    }

    random (args) {
        ：
        // If both arguments are ints, truncate the result to an int.
        if (Cast.isInt(args.FROM) && Cast.isInt(args.TO)) {
            return low + Math.floor(Math.random() * ((high + 1) - low));
        }
        ：
    }