Example use of CowFisk merchant assistant

CowFisk_example_use.js

    // If you want the code below to work, run the following line somewhere within your main loop. Otherwise you won't be able to see the shiny market data.
    // 1 is the current public segment for this data, but if you want to be a bit more robust, you can read my default public segment to determine which segment to read for market data.
    // RawMemory.setActiveForeignSegment("Bovius", 1);

    cowBuy: function(compound, maxAmount, maxPrice, roomName, staleThreshold) {
        return this.cowDeal("sellers", compound, maxAmount, maxPrice, roomName, staleThreshold);
    },

    cowSell: function(compound, maxAmount, minPrice, roomName, staleThreshold) {
        return this.cowDeal("buyers", compound, maxAmount, minPrice, roomName, staleThreshold);
    },

    cowDeal: function(type, compound, maxAmount, priceThreshold, roomName, staleThreshold) {
        if (typeof type !== "string" || typeof compound !== "string" || typeof maxAmount !== "number" || typeof roomName !== "string") {
            return ERR_INVALID_ARGS; // -10
        }
        if ((priceThreshold && typeof priceThreshold !== "number") || (staleThreshold && typeof staleThreshold !== "number")) {
            return ERR_INVALID_ARGS; // -10
        }
        if (!staleThreshold) {
            staleThreshold = 5
        }
        if (!RawMemory.foreignSegment || RawMemory.foreignSegment.username != "Bovius") {
            // Can't use data if you can't see it.
            return ERR_NO_PATH; // -2
        }
        let orderData;
        try {
            let parsed = JSON.parse(RawMemory.foreignSegment.data);
            if (!parsed.orders) {
                return ERR_NO_PATH; // -2
            }
            orderData = parsed.orders;
        } catch (err) {
            return ERR_NO_PATH; // -2
        }

        if (Game.time - orderData.time >= staleThreshold) {
            // Weep. Weep for the CPU you are about to waste gathering market data yourself, for CowFisk is out of date.
            return ERR_BUSY; // -4
        }
        if (!orderData[compound] || !orderData[compound][type] || orderData[compound][type].length === 0) {
            // Either we don't track that compound, or there are no buy/sell orders for that compound.
            return ERR_NOT_FOUND; // -5
        }
        for (let order of orderData[compound][type]) {
            // Skip your own orders.
            if (Game.rooms[order.roomName] && Game.rooms[order.roomName].controller && Game.rooms[order.roomName].controller.my) {
                continue;
            }
            // Don't make deals above the threshold when buying, or below the threshold when selling.
            if ((type == "sellers" && priceThreshold && order.price > priceThreshold) || (type == "buyers" && priceThreshold && order.price < priceThreshold)) {
                break;
            }
            return Game.market.deal(order.id, Math.min(order.amount, maxAmount), roomName)
        }
        // Sorry. Either all the orders were yours (why are you calling this?), or they didn't meet your price requirements.
        return ERR_NOT_FOUND; // -5
    },