BitNode-9 initial implementation

src/Hacknet/HacknetHelpers.jsx

@@ -0,0 +1,431 @@
+import { HacknetNode,
+         BaseCostForHacknetNode,
+         HacknetNodePurchaseNextMult,
+         HacknetNodeMaxLevel,
+         HacknetNodeMaxRam,
+         HacknetNodeMaxCores }                  from "./HacknetNode";
+import { HacknetServer,
+         BaseCostForHacknetServer,
+         HacknetServerPurchaseMult,
+         HacknetServerMaxLevel,
+         HacknetServerMaxRam,
+         HacknetServerMaxCores,
+         HacknetServerMaxCache,
+         MaxNumberHacknetServers }              from "./HacknetServer";
+import { HashManager }                          from "./HashManager";
+import { HashUpgrades }                         from "./HashUpgrades";
+
+import { generateRandomContractOnHome }         from "../CodingContractGenerator";
+import { iTutorialSteps, iTutorialNextStep,
+         ITutorial}                             from "../InteractiveTutorial";
+import { Player }                               from "../Player";
+import { AddToAllServers }                      from "../Server/AllServers";
+import { GetServerByHostname }                  from "../Server/ServerHelpers";
+import { SourceFileFlags }                      from "../SourceFile/SourceFileFlags";
+import { Page, routing }                        from "../ui/navigationTracking";
+
+import {getElementById}                         from "../../utils/uiHelpers/getElementById";
+
+import React                                    from "react";
+import ReactDOM                                 from "react-dom";
+import { HacknetRoot }                          from "./ui/Root";
+
+let hacknetNodesDiv;
+function hacknetNodesInit() {
+    hacknetNodesDiv = document.getElementById("hacknet-nodes-container");
+}
+
+document.addEventListener("DOMContentLoaded", hacknetNodesInit, false);
+
+// Returns a boolean indicating whether the player has Hacknet Servers
+// (the upgraded form of Hacknet Nodes)
+export function hasHacknetServers() {
+    return (Player.bitNodeN === 9 || SourceFileFlags[9] > 0);
+}
+
+export function purchaseHacknet() {
+    /* INTERACTIVE TUTORIAL */
+    if (ITutorial.isRunning) {
+        if (ITutorial.currStep === iTutorialSteps.HacknetNodesIntroduction) {
+            iTutorialNextStep();
+        } else {
+            return;
+        }
+    }
+
+    /* END INTERACTIVE TUTORIAL */
+
+    if (hasHacknetServers()) {
+        const cost = getCostOfNextHacknetServer();
+        if (isNaN(cost)) {
+            throw new Error(`Calculated cost of purchasing HacknetServer is NaN`)
+        }
+
+        if (!Player.canAfford(cost)) { return -1; }
+
+        // Auto generate a hostname for this Server
+        const numOwned = Player.hacknetNodes.length;
+        const name = `hacknet-node-${numOwned}`;
+        const server = new HacknetServer({
+            adminRights: true,
+            hostname: name,
+            player: Player,
+        });
+
+        Player.loseMoney(cost);
+        Player.hacknetNodes.push(server);
+
+        // Configure the HacknetServer to actually act as a Server
+        AddToAllServers(server);
+        const homeComputer = Player.getHomeComputer();
+        homeComputer.serversOnNetwork.push(server.ip);
+        server.serversOnNetwork.push(homeComputer.ip);
+
+        return numOwned;
+    } else {
+        const cost = getCostOfNextHacknetNode();
+        if (isNaN(cost)) {
+            throw new Error(`Calculated cost of purchasing HacknetNode is NaN`);
+        }
+
+        if (!Player.canAfford(cost)) { return -1; }
+
+        // Auto generate a name for the Node
+        const numOwned = Player.hacknetNodes.length;
+        const name = "hacknet-node-" + numOwned;
+        const node = new HacknetNode(name);
+        node.updateMoneyGainRate(Player);
+
+        Player.loseMoney(cost);
+        Player.hacknetNodes.push(node);
+
+        return numOwned;
+    }
+}
+
+export function hasMaxNumberHacknetServers() {
+    return hasHacknetServers() && Player.hacknetNodes.length >= MaxNumberHacknetServers;
+}
+
+export function getCostOfNextHacknetNode() {
+    // Cost increases exponentially based on how many you own
+    const numOwned = Player.hacknetNodes.length;
+    const mult = HacknetNodePurchaseNextMult;
+
+    return BaseCostForHacknetNode * Math.pow(mult, numOwned) * Player.hacknet_node_purchase_cost_mult;
+}
+
+export function getCostOfNextHacknetServer() {
+    const numOwned = Player.hacknetNodes.length;
+    const mult = HacknetServerPurchaseMult;
+
+    if (numOwned > MaxNumberHacknetServers) { return Infinity; }
+
+    return BaseCostForHacknetServer * Math.pow(mult, numOwned) * Player.hacknet_node_purchase_cost_mult;
+}
+
+//Calculate the maximum number of times the Player can afford to upgrade a Hacknet Node
+export function getMaxNumberLevelUpgrades(nodeObj, maxLevel) {
+    if (maxLevel == null) {
+        throw new Error(`getMaxNumberLevelUpgrades() called without maxLevel arg`);
+    }
+
+    if (Player.money.lt(nodeObj.calculateLevelUpgradeCost(1, Player))) {
+        return 0;
+    }
+
+    let min = 1;
+    let max = maxLevel - 1;
+    let levelsToMax = maxLevel - nodeObj.level;
+    if (Player.money.gt(nodeObj.calculateLevelUpgradeCost(levelsToMax, Player))) {
+        return levelsToMax;
+    }
+
+    while (min <= max) {
+        var curr = (min + max) / 2 | 0;
+        if (curr !== maxLevel &&
+            Player.money.gt(nodeObj.calculateLevelUpgradeCost(curr, Player)) &&
+            Player.money.lt(nodeObj.calculateLevelUpgradeCost(curr + 1, Player))) {
+            return Math.min(levelsToMax, curr);
+        } else if (Player.money.lt(nodeObj.calculateLevelUpgradeCost(curr, Player))) {
+            max = curr - 1;
+        } else if (Player.money.gt(nodeObj.calculateLevelUpgradeCost(curr, Player))) {
+            min = curr + 1;
+        } else {
+            return Math.min(levelsToMax, curr);
+        }
+    }
+    return 0;
+}
+
+export function getMaxNumberRamUpgrades(nodeObj, maxLevel) {
+    if (maxLevel == null) {
+        throw new Error(`getMaxNumberRamUpgrades() called without maxLevel arg`);
+    }
+
+    if (Player.money.lt(nodeObj.calculateRamUpgradeCost(1, Player))) {
+        return 0;
+    }
+
+    let levelsToMax;
+    if (nodeObj instanceof HacknetServer) {
+        levelsToMax = Math.round(Math.log2(maxLevel / nodeObj.maxRam));
+    } else {
+        levelsToMax = Math.round(Math.log2(maxLevel / nodeObj.ram));
+    }
+    if (Player.money.gt(nodeObj.calculateRamUpgradeCost(levelsToMax, Player))) {
+        return levelsToMax;
+    }
+
+    //We'll just loop until we find the max
+    for (let i = levelsToMax-1; i >= 0; --i) {
+        if (Player.money.gt(nodeObj.calculateRamUpgradeCost(i, Player))) {
+            return i;
+        }
+    }
+    return 0;
+}
+
+export function getMaxNumberCoreUpgrades(nodeObj, maxLevel) {
+    if (maxLevel == null) {
+        throw new Error(`getMaxNumberCoreUpgrades() called without maxLevel arg`);
+    }
+
+    if (Player.money.lt(nodeObj.calculateCoreUpgradeCost(1, Player))) {
+        return 0;
+    }
+
+    let min = 1;
+    let max = maxLevel - 1;
+    const levelsToMax = maxLevel - nodeObj.cores;
+    if (Player.money.gt(nodeObj.calculateCoreUpgradeCost(levelsToMax, Player))) {
+        return levelsToMax;
+    }
+
+    //Use a binary search to find the max possible number of upgrades
+    while (min <= max) {
+        let curr = (min + max) / 2 | 0;
+        if (curr != maxLevel &&
+            Player.money.gt(nodeObj.calculateCoreUpgradeCost(curr, Player)) &&
+            Player.money.lt(nodeObj.calculateCoreUpgradeCost(curr + 1, Player))) {
+            return Math.min(levelsToMax, curr);
+        } else if (Player.money.lt(nodeObj.calculateCoreUpgradeCost(curr, Player))) {
+            max = curr - 1;
+        } else if (Player.money.gt(nodeObj.calculateCoreUpgradeCost(curr, Player))) {
+            min = curr + 1;
+        } else {
+            return Math.min(levelsToMax, curr);
+        }
+    }
+
+    return 0;
+}
+
+export function getMaxNumberCacheUpgrades(nodeObj, maxLevel) {
+    if (maxLevel == null) {
+        throw new Error(`getMaxNumberCacheUpgrades() called without maxLevel arg`);
+    }
+
+    if (!Player.canAfford(nodeObj.calculateCacheUpgradeCost(1))) {
+        return 0;
+    }
+
+    let min = 1;
+    let max = maxLevel - 1;
+    const levelsToMax = maxLevel - nodeObj.cache;
+    if (Player.canAfford(nodeObj.calculateCacheUpgradeCost(levelsToMax))) {
+        return levelsToMax;
+    }
+
+    // Use a binary search to find the max possible number of upgrades
+    while (min <= max) {
+        let curr = (min + max) / 2 | 0;
+        if (curr != maxLevel &&
+            Player.canAfford(nodeObj.calculateCacheUpgradeCost(curr)) &&
+            !Player.canAfford(nodeObj.calculateCacheUpgradeCost(curr + 1))) {
+            return Math.min(levelsToMax, curr);
+        } else if (!Player.canAfford(nodeObj.calculateCacheUpgradeCost(curr))) {
+            max = curr -1 ;
+        } else if (Player.canAfford(nodeObj.calculateCacheUpgradeCost(curr))) {
+            min = curr + 1;
+        } else {
+            return Math.min(levelsToMax, curr);
+        }
+    }
+
+    return 0;
+}
+
+// Initial construction of Hacknet Nodes UI
+export function renderHacknetNodesUI() {
+    if (!routing.isOn(Page.HacknetNodes)) { return; }
+
+    ReactDOM.render(<HacknetRoot />, hacknetNodesDiv);
+}
+
+export function clearHacknetNodesUI() {
+    if (hacknetNodesDiv instanceof HTMLElement) {
+        ReactDOM.unmountComponentAtNode(hacknetNodesDiv);
+    }
+
+    hacknetNodesDiv.style.display = "none";
+}
+
+export function processHacknetEarnings(numCycles) {
+    // Determine if player has Hacknet Nodes or Hacknet Servers, then
+    // call the appropriate function
+    if (Player.hacknetNodes.length === 0) { return 0; }
+    if (hasHacknetServers()) {
+        return processAllHacknetServerEarnings();
+    } else if (Player.hacknetNodes[0] instanceof HacknetNode) {
+        return processAllHacknetNodeEarnings();
+    } else {
+        return 0;
+    }
+}
+
+function processAllHacknetNodeEarnings(numCycles) {
+    let total = 0;
+    for (let i = 0; i < Player.hacknetNodes.length; ++i) {
+        total += processSingleHacknetNodeEarnings(numCycles, Player.hacknetNodes[i]);
+    }
+
+    return total;
+}
+
+function processSingleHacknetNodeEarnings(numCycles, nodeObj) {
+    const totalEarnings = nodeObj.process(numCycles);
+    Player.gainMoney(totalEarnings);
+    Player.recordMoneySource(totalEarnings, "hacknetnode");
+
+    return totalEarnings;
+}
+
+function processAllHacknetServerEarnings(numCycles) {
+    if (!(Player.hashManager instanceof HashManager)) {
+        throw new Error(`Player does not have a HashManager (should be in 'hashManager' prop)`)
+    }
+
+    let hashes = 0;
+    for (let i = 0; i < Player.hacknetNodes.length; ++i) {
+        hashes += Player.hacknetNodes[i].process(numCycles);
+    }
+
+    Player.hashManager.storeHashes(hashes);
+
+    return hashes;
+}
+
+export function getHacknetNode(name) {
+    for (var i = 0; i < Player.hacknetNodes.length; ++i) {
+        if (Player.hacknetNodes[i].name == name) {
+            return Player.hacknetNodes[i];
+        }
+    }
+
+    return null;
+}
+
+export function purchaseHashUpgrade(upgName, upgTarget) {
+    if (!(Player.hashManager instanceof HashManager)) {
+        console.error(`Player does not have a HashManager`);
+        return false;
+    }
+
+    // HashManager handles the transaction. This just needs to actually implement
+    // the effects of the upgrade
+    if (Player.hashManager.upgrade(upgName)) {
+        const upg = HashUpgrades[upgName];
+
+        switch (upgName) {
+            case "Sell for Money": {
+                Player.gainMoney(upg.value);
+                break;
+            }
+            case "Sell for Corporation Funds": {
+                // This will throw if player doesn't have a corporation
+                try {
+                    Player.corporation.funds = Player.corporation.funds.plus(upg.value);
+                } catch(e) {
+                    Player.hashManager.refundUpgrade(upgName);
+                    return false;
+                }
+                break;
+            }
+            case "Reduce Minimum Security": {
+                try {
+                    const target = GetServerByHostname(upgTarget);
+                    if (target == null) {
+                        console.error(`Invalid target specified in purchaseHashUpgrade(): ${upgTarget}`);
+                        return false;
+                    }
+
+                    target.changeMinimumSecurity(upg.value, true);
+                } catch(e) {
+                    Player.hashManager.refundUpgrade(upgName);
+                    return false;
+                }
+                break;
+            }
+            case "Increase Maximum Money": {
+                try {
+                    const target = GetServerByHostname(upgTarget);
+                    if (target == null) {
+                        console.error(`Invalid target specified in purchaseHashUpgrade(): ${upgTarget}`);
+                        return false;
+                    }
+
+                    target.changeMaximumMoney(upg.value, true);
+                } catch(e) {
+                    Player.hashManager.refundUpgrade(upgName);
+                    return false;
+                }
+                break;
+            }
+            case "Improve Studying": {
+                // Multiplier handled by HashManager
+                break;
+            }
+            case "Improve Gym Training": {
+                // Multiplier handled by HashManager
+                break;
+            }
+            case "Exchange for Corporation Research": {
+                // This will throw if player doesn't have a corporation
+                try {
+                    for (const division of Player.corporation.divisions) {
+                        division.sciResearch.qty += upg.value;
+                    }
+                } catch(e) {
+                    Player.hashManager.refundUpgrade(upgName);
+                    return false;
+                }
+                break;
+            }
+            case "Exchange for Bladeburner Rank": {
+                // This will throw if player doesn't have a corporation
+                try {
+                    for (const division of Player.corporation.divisions) {
+                        division.sciResearch.qty += upg.value;
+                    }
+                } catch(e) {
+                    Player.hashManager.refundUpgrade(upgName);
+                    return false;
+                }
+                break;
+            }
+            case "Generate Coding Contract": {
+                generateRandomContractOnHome();
+                break;
+            }
+            default:
+                console.warn(`Unrecognized upgrade name ${upgName}. Upgrade has no effect`)
+                return false;
+        }
+
+        console.log("Hash Upgrade successfully purchased");
+        return true;
+    }
+
+    return false;
+}

src/Hacknet/HacknetNode.ts

@@ -0,0 +1,285 @@
+/**
+ * Hacknet Node Class
+ *
+ * Hacknet Nodes are specialized machines that passively earn the player money over time.
+ * They can be upgraded to increase their production
+ */
+import { IHacknetNode } from "./IHacknetNode";
+
+import { CONSTANTS } from "../Constants";
+
+import { BitNodeMultipliers } from "../BitNode/BitNodeMultipliers";
+import { IPlayer } from "../PersonObjects/IPlayer";
+
+import { dialogBoxCreate } from "../../utils/DialogBox";
+import { Generic_fromJSON,
+         Generic_toJSON,
+         Reviver } from "../../utils/JSONReviver";
+
+// Constants for Hacknet Node production
+export const HacknetNodeMoneyGainPerLevel: number = 1.6;    // Base production per level
+
+// Constants for Hacknet Node purchase/upgrade costs
+export const BaseCostForHacknetNode: number = 1000;
+export const BaseCostFor1GBOfRamHacknetNode: number = 30e3;
+export const BaseCostForHacknetNodeCore: number = 500e3;
+export const HacknetNodePurchaseNextMult: number = 1.85;    // Multiplier when purchasing an additional hacknet node
+export const HacknetNodeUpgradeLevelMult: number = 1.04;    // Multiplier for cost when upgrading level
+export const HacknetNodeUpgradeRamMult: number = 1.28;      // Multiplier for cost when upgrading RAM
+export const HacknetNodeUpgradeCoreMult: number = 1.48;     // Multiplier for cost when buying another core
+
+// Constants for max upgrade levels for Hacknet Nodes
+export const HacknetNodeMaxLevel:  number = 200;
+export const HacknetNodeMaxRam: number = 64;
+export const HacknetNodeMaxCores: number = 16;
+
+export class HacknetNode implements IHacknetNode {
+    /**
+     * Initiatizes a HacknetNode object from a JSON save state.
+     */
+    static fromJSON(value: any): HacknetNode {
+        return Generic_fromJSON(HacknetNode, value.data);
+    }
+
+    // Node's number of cores
+    cores: number = 1;
+
+    // Node's Level
+    level: number = 1;
+
+    // Node's production per second
+    moneyGainRatePerSecond: number = 0;
+
+    // Identifier for Node. Includes the full "name" (hacknet-node-N)
+    name: string;
+
+    // How long this Node has existed, in seconds
+    onlineTimeSeconds: number = 0;
+
+    // Node's RAM (GB)
+    ram: number = 1;
+
+    // Total money earned by this Node
+    totalMoneyGenerated: number = 0;
+
+    constructor(name: string="") {
+        this.name       = name;
+    }
+
+    // Get the cost to upgrade this Node's number of cores
+    calculateCoreUpgradeCost(levels: number=1, p: IPlayer): number {
+        const sanitizedLevels = Math.round(levels);
+        if (isNaN(sanitizedLevels) || sanitizedLevels < 1) {
+            return 0;
+        }
+
+        if (this.cores >= HacknetNodeMaxCores) {
+            return Infinity;
+        }
+
+        const coreBaseCost  = BaseCostForHacknetNodeCore;
+        const mult          = HacknetNodeUpgradeCoreMult;
+        let totalCost       = 0;
+        let currentCores    = this.cores;
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            totalCost += (coreBaseCost * Math.pow(mult, currentCores-1));
+            ++currentCores;
+        }
+
+        totalCost *= p.hacknet_node_core_cost_mult;
+
+        return totalCost;
+    }
+
+    // Get the cost to upgrade this Node's level
+    calculateLevelUpgradeCost(levels: number=1, p: IPlayer): number {
+        const sanitizedLevels = Math.round(levels);
+        if (isNaN(sanitizedLevels) || sanitizedLevels < 1) {
+            return 0;
+        }
+
+        if (this.level >= HacknetNodeMaxLevel) {
+            return Infinity;
+        }
+
+        const mult = HacknetNodeUpgradeLevelMult;
+        let totalMultiplier = 0;
+        let currLevel = this.level;
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            totalMultiplier += Math.pow(mult, currLevel);
+            ++currLevel;
+        }
+
+        return BaseCostForHacknetNode / 2 * totalMultiplier * p.hacknet_node_level_cost_mult;
+    }
+
+    // Get the cost to upgrade this Node's RAM
+    calculateRamUpgradeCost(levels: number=1, p: IPlayer): number {
+        const sanitizedLevels = Math.round(levels);
+        if (isNaN(sanitizedLevels) || sanitizedLevels < 1) {
+            return 0;
+        }
+
+        if (this.ram >= HacknetNodeMaxRam) {
+            return Infinity;
+        }
+
+        let totalCost = 0;
+        let numUpgrades = Math.round(Math.log2(this.ram));
+        let currentRam = this.ram;
+
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            let baseCost = currentRam * BaseCostFor1GBOfRamHacknetNode;
+            let mult = Math.pow(HacknetNodeUpgradeRamMult, numUpgrades);
+
+            totalCost += (baseCost * mult);
+
+            currentRam *= 2;
+            ++numUpgrades;
+        }
+
+        totalCost *= p.hacknet_node_ram_cost_mult;
+
+        return totalCost;
+    }
+
+    // Process this Hacknet Node in the game loop.
+    // Returns the amount of money generated
+    process(numCycles: number=1): number {
+        const seconds = numCycles * CONSTANTS.MilliPerCycle / 1000;
+        let gain = this.moneyGainRatePerSecond * seconds;
+        if (isNaN(gain)) {
+            console.error(`Hacknet Node ${this.name} calculated earnings of NaN`);
+            gain = 0;
+        }
+
+        this.totalMoneyGenerated += gain;
+        this.onlineTimeSeconds += seconds;
+
+        return gain;
+    }
+
+    // Upgrade this Node's number of cores, if possible
+    // Returns a boolean indicating whether new cores were successfully bought
+    purchaseCoreUpgrade(levels: number=1, p: IPlayer): boolean {
+        const sanitizedLevels = Math.round(levels);
+        const cost = this.calculateCoreUpgradeCost(sanitizedLevels, p);
+        if (isNaN(cost) || sanitizedLevels < 0) {
+            return false;
+        }
+
+        // Fail if we're already at max
+        if (this.cores >= HacknetNodeMaxCores) {
+            return false;
+        }
+
+        // If the specified number of upgrades would exceed the max Cores, calculate
+        // the max possible number of upgrades and use that
+        if (this.cores + sanitizedLevels > HacknetNodeMaxCores) {
+            const diff = Math.max(0, HacknetNodeMaxCores - this.cores);
+            return this.purchaseCoreUpgrade(diff, p);
+        }
+
+        if (!p.canAfford(cost)) {
+            return false;
+        }
+
+        p.loseMoney(cost);
+        this.cores = Math.round(this.cores + sanitizedLevels); // Just in case of floating point imprecision
+        this.updateMoneyGainRate(p);
+
+        return true;
+    }
+
+    // Upgrade this Node's level, if possible
+    // Returns a boolean indicating whether the level was successfully updated
+    purchaseLevelUpgrade(levels: number=1, p: IPlayer): boolean {
+        const sanitizedLevels = Math.round(levels);
+        const cost = this.calculateLevelUpgradeCost(sanitizedLevels, p);
+        if (isNaN(cost) || sanitizedLevels < 0) {
+            return false;
+        }
+
+        // If we're at max level, return false
+        if (this.level >= HacknetNodeMaxLevel) {
+            return false;
+        }
+
+        // If the number of specified upgrades would exceed the max level, calculate
+        // the maximum number of upgrades and use that
+        if (this.level + sanitizedLevels > HacknetNodeMaxLevel) {
+            var diff = Math.max(0, HacknetNodeMaxLevel - this.level);
+            return this.purchaseLevelUpgrade(diff, p);
+        }
+
+        if (!p.canAfford(cost)) {
+            return false;
+        }
+
+        p.loseMoney(cost);
+        this.level = Math.round(this.level + sanitizedLevels); // Just in case of floating point imprecision
+        this.updateMoneyGainRate(p);
+
+        return true;
+    }
+
+    // Upgrade this Node's RAM, if possible
+    // Returns a boolean indicating whether the RAM was successfully upgraded
+    purchaseRamUpgrade(levels: number=1, p: IPlayer): boolean {
+        const sanitizedLevels = Math.round(levels);
+        const cost = this.calculateRamUpgradeCost(sanitizedLevels, p);
+        if (isNaN(cost) || sanitizedLevels < 0) {
+            return false;
+        }
+
+        // Fail if we're already at max
+        if (this.ram >= HacknetNodeMaxRam) {
+            return false;
+        }
+
+        // If the number of specified upgrades would exceed the max RAM, calculate the
+        // max possible number of upgrades and use that
+        if (this.ram * Math.pow(2, sanitizedLevels) > HacknetNodeMaxRam) {
+            var diff = Math.max(0, Math.log2(Math.round(HacknetNodeMaxRam / this.ram)));
+            return this.purchaseRamUpgrade(diff, p);
+        }
+
+        if (!p.canAfford(cost)) {
+            return false;
+        }
+
+        p.loseMoney(cost);
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            this.ram *= 2; // Ram is always doubled
+        }
+        this.ram = Math.round(this.ram); // Handle any floating point precision issues
+        this.updateMoneyGainRate(p);
+
+        return true;
+    }
+
+    // Re-calculate this Node's production and update the moneyGainRatePerSecond prop
+    updateMoneyGainRate(p: IPlayer): void {
+        //How much extra $/s is gained per level
+        var gainPerLevel = HacknetNodeMoneyGainPerLevel;
+
+        this.moneyGainRatePerSecond = (this.level * gainPerLevel) *
+                                      Math.pow(1.035, this.ram - 1) *
+                                      ((this.cores + 5) / 6) *
+                                      p.hacknet_node_money_mult *
+                                      BitNodeMultipliers.HacknetNodeMoney;
+        if (isNaN(this.moneyGainRatePerSecond)) {
+            this.moneyGainRatePerSecond = 0;
+            dialogBoxCreate("Error in calculating Hacknet Node production. Please report to game developer", false);
+        }
+    }
+
+    /**
+     * Serialize the current object to a JSON save state.
+     */
+    toJSON(): any {
+        return Generic_toJSON("HacknetNode", this);
+    }
+}
+
+Reviver.constructors.HacknetNode = HacknetNode;

src/Hacknet/HacknetServer.ts

@@ -0,0 +1,348 @@
+/**
+ * Hacknet Servers - Reworked Hacknet Node mechanic for BitNode-9
+ */
+import { CONSTANTS } from "../Constants";
+
+import { BitNodeMultipliers } from "../BitNode/BitNodeMultipliers";
+import { IHacknetNode } from "../Hacknet/IHacknetNode";
+import { IPlayer } from "../PersonObjects/IPlayer";
+import { BaseServer } from "../Server/BaseServer";
+import { RunningScript } from "../Script/RunningScript";
+
+import { dialogBoxCreate } from "../../utils/DialogBox";
+import { createRandomIp } from "../../utils/IPAddress";
+
+import { Generic_fromJSON,
+         Generic_toJSON,
+         Reviver } from "../../utils/JSONReviver";
+
+// Constants for Hacknet Server stats/production
+export const HacknetServerHashesPerLevel: number = 0.001;
+
+// Constants for Hacknet Server purchase/upgrade costs
+export const BaseCostForHacknetServer: number = 10e3;
+export const BaseCostFor1GBHacknetServerRam: number = 200e3;
+export const BaseCostForHacknetServerCore: number = 1e6;
+export const BaseCostForHacknetServerCache: number = 10e6;
+
+export const HacknetServerPurchaseMult: number = 3.2;       // Multiplier for puchasing an additional Hacknet Server
+export const HacknetServerUpgradeLevelMult: number = 1.1;   // Multiplier for cost when upgrading level
+export const HacknetServerUpgradeRamMult: number = 1.4;     // Multiplier for cost when upgrading RAM
+export const HacknetServerUpgradeCoreMult: number = 1.55;   // Multiplier for cost when buying another core
+export const HacknetServerUpgradeCacheMult: number = 1.85;  // Multiplier for cost when upgrading cache
+
+export const MaxNumberHacknetServers: number = 25;          // Max number of Hacknet Servers you can own
+
+// Constants for max upgrade levels for Hacknet Server
+export const HacknetServerMaxLevel: number = 300;
+export const HacknetServerMaxRam: number = 8192;
+export const HacknetServerMaxCores: number = 128;
+export const HacknetServerMaxCache: number = 15; // Max cache level. So max capacity is 2 ^ 12
+
+interface IConstructorParams {
+    adminRights?: boolean;
+    hostname: string;
+    ip?: string;
+    isConnectedTo?: boolean;
+    maxRam?: number;
+    organizationName?: string;
+    player?: IPlayer;
+}
+
+export class HacknetServer extends BaseServer implements IHacknetNode {
+    // Initializes a HacknetServer Object from a JSON save state
+    static fromJSON(value: any): HacknetServer {
+        return Generic_fromJSON(HacknetServer, value.data);
+    }
+
+    // Cache level. Affects hash Capacity
+    cache: number = 1;
+
+    // Number of cores. Improves hash production
+    cores: number = 1;
+
+    // Number of hashes that can be stored by this Hacknet Server
+    hashCapacity: number = 0;
+
+    // Hashes produced per second
+    hashRate: number = 0;
+
+    // Similar to Node level. Improves hash production
+    level: number = 1;
+
+    // How long this HacknetServer has existed, in seconds
+    onlineTimeSeconds: number = 0;
+
+    // Total number of hashes earned by this
+    totalHashesGenerated: number = 0;
+
+    constructor(params: IConstructorParams={ hostname: "", ip: createRandomIp() }) {
+        super(params);
+
+        this.maxRam = 1;
+        this.updateHashCapacity();
+
+        if (params.player) {
+            this.updateHashRate(params.player);
+        }
+    }
+
+    calculateCacheUpgradeCost(levels: number): number {
+        const sanitizedLevels = Math.round(levels);
+        if (isNaN(sanitizedLevels) || sanitizedLevels < 1) {
+            return 0;
+        }
+
+        if (this.cache >= HacknetServerMaxCache) {
+            return Infinity;
+        }
+
+        const mult = HacknetServerUpgradeCacheMult;
+        let totalCost = 0;
+        let currentCache = this.cache;
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            totalCost += Math.pow(mult, currentCache - 1);
+            ++currentCache;
+        }
+        totalCost *= BaseCostForHacknetServerCache;
+
+        return totalCost;
+    }
+
+    calculateCoreUpgradeCost(levels: number, p: IPlayer): number {
+        const sanitizedLevels = Math.round(levels);
+        if (isNaN(sanitizedLevels) || sanitizedLevels < 1) {
+            return 0;
+        }
+
+        if (this.cores >= HacknetServerMaxCores) {
+            return Infinity;
+        }
+
+        const mult  = HacknetServerUpgradeCoreMult;
+        let totalCost = 0;
+        let currentCores = this.cores;
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            totalCost += Math.pow(mult, currentCores-1);
+            ++currentCores;
+        }
+        totalCost *= BaseCostForHacknetServerCore;
+        totalCost *= p.hacknet_node_core_cost_mult;
+
+        return totalCost;
+    }
+
+    calculateLevelUpgradeCost(levels: number, p: IPlayer): number {
+        const sanitizedLevels = Math.round(levels);
+        if (isNaN(sanitizedLevels) || sanitizedLevels < 1) {
+            return 0;
+        }
+
+        if (this.level >= HacknetServerMaxLevel) {
+            return Infinity;
+        }
+
+        const mult = HacknetServerUpgradeLevelMult;
+        let totalMultiplier = 0;
+        let currLevel = this.level;
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            totalMultiplier += Math.pow(mult, currLevel);
+            ++currLevel;
+        }
+
+        return 10 * BaseCostForHacknetServer * totalMultiplier * p.hacknet_node_level_cost_mult;
+    }
+
+    calculateRamUpgradeCost(levels: number, p: IPlayer): number {
+        const sanitizedLevels = Math.round(levels);
+        if (isNaN(sanitizedLevels) || sanitizedLevels < 1) {
+            return 0;
+        }
+
+        if (this.maxRam >= HacknetServerMaxRam) {
+            return Infinity;
+        }
+
+        let totalCost = 0;
+        let numUpgrades = Math.round(Math.log2(this.maxRam));
+        let currentRam = this.maxRam;
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            let baseCost = currentRam * BaseCostFor1GBHacknetServerRam;
+            let mult = Math.pow(HacknetServerUpgradeRamMult, numUpgrades);
+
+            totalCost += (baseCost * mult);
+
+            currentRam *= 2;
+            ++numUpgrades;
+        }
+        totalCost *= p.hacknet_node_ram_cost_mult;
+
+        return totalCost;
+    }
+
+    // Process this Hacknet Server in the game loop.
+    // Returns the number of hashes generated
+    process(numCycles: number=1): number {
+        const seconds = numCycles * CONSTANTS.MilliPerCycle / 1000;
+
+        return this.hashRate * seconds;
+    }
+
+    // Returns a boolean indicating whether the cache was successfully upgraded
+    purchaseCacheUpgrade(levels: number, p: IPlayer): boolean {
+        const sanitizedLevels = Math.round(levels);
+        const cost = this.calculateCacheUpgradeCost(levels);
+        if (isNaN(cost) || cost <= 0 || sanitizedLevels <= 0) {
+            return false;
+        }
+
+        if (this.cache >= HacknetServerMaxCache) {
+            return false;
+        }
+
+        // If the specified number of upgrades would exceed the max, try to purchase
+        // the maximum possible
+        if (this.cache + levels > HacknetServerMaxCache) {
+            const diff = Math.max(0, HacknetServerMaxCache - this.cache);
+            return this.purchaseCacheUpgrade(diff, p);
+        }
+
+        if (!p.canAfford(cost)) {
+            return false;
+        }
+
+        p.loseMoney(cost);
+        this.cache = Math.round(this.cache + sanitizedLevels);
+        this.updateHashCapacity();
+
+        return true;
+    }
+
+    // Returns a boolean indicating whether the number of cores was successfully upgraded
+    purchaseCoreUpgrade(levels: number, p: IPlayer): boolean {
+        const sanitizedLevels = Math.round(levels);
+        const cost = this.calculateCoreUpgradeCost(sanitizedLevels, p);
+        if (isNaN(cost) || cost <= 0 || sanitizedLevels <= 0) {
+            return false;
+        }
+
+        if (this.cores >= HacknetServerMaxCores) {
+            return false;
+        }
+
+        // If the specified number of upgrades would exceed the max, try to purchase
+        // the maximum possible
+        if (this.cores + sanitizedLevels > HacknetServerMaxCores) {
+            const diff = Math.max(0, HacknetServerMaxCores - this.cores);
+            return this.purchaseCoreUpgrade(diff, p);
+        }
+
+        if (!p.canAfford(cost)) {
+            return false;
+        }
+
+        p.loseMoney(cost);
+        this.cores = Math.round(this.cores + sanitizedLevels);
+        this.updateHashRate(p);
+
+        return true;
+    }
+
+    // Returns a boolean indicating whether the level was successfully upgraded
+    purchaseLevelUpgrade(levels: number, p: IPlayer): boolean {
+        const sanitizedLevels = Math.round(levels);
+        const cost = this.calculateLevelUpgradeCost(sanitizedLevels, p);
+        if (isNaN(cost) || cost <= 0 || sanitizedLevels <= 0) {
+            return false;
+        }
+
+        if (this.level >= HacknetServerMaxLevel) {
+            return false;
+        }
+
+        // If the specified number of upgrades would exceed the max, try to purchase the
+        // maximum possible
+        if (this.level + sanitizedLevels > HacknetServerMaxLevel) {
+            const diff = Math.max(0, HacknetServerMaxLevel - this.level);
+            return this.purchaseLevelUpgrade(diff, p);
+        }
+
+        if (!p.canAfford(cost)) {
+            return false;
+        }
+
+        p.loseMoney(cost);
+        this.level = Math.round(this.level + sanitizedLevels);
+        this.updateHashRate(p);
+
+        return true;
+    }
+
+    // Returns a boolean indicating whether the RAM was successfully upgraded
+    purchaseRamUpgrade(levels: number, p: IPlayer): boolean {
+        const sanitizedLevels = Math.round(levels);
+        const cost = this.calculateRamUpgradeCost(sanitizedLevels, p);
+        if(isNaN(cost) || cost <= 0 || sanitizedLevels <= 0) {
+            return false;
+        }
+
+        if (this.maxRam >= HacknetServerMaxRam) {
+            return false;
+        }
+
+        // If the specified number of upgrades would exceed the max, try to purchase
+        // just the maximum possible
+        if (this.maxRam * Math.pow(2, sanitizedLevels) > HacknetServerMaxRam) {
+            const diff = Math.max(0, Math.log2(Math.round(HacknetServerMaxRam / this.maxRam)));
+            return this.purchaseRamUpgrade(diff, p);
+        }
+
+        if (!p.canAfford(cost)) {
+            return false;
+        }
+
+        p.loseMoney(cost);
+        for (let i = 0; i < sanitizedLevels; ++i) {
+            this.maxRam *= 2;
+        }
+        this.maxRam = Math.round(this.maxRam);
+
+        return true;
+    }
+
+    /**
+     * Whenever a script is run, we must update this server's hash rate
+     */
+    runScript(script: RunningScript, p?: IPlayer): void {
+        super.runScript(script);
+        if (p) {
+            this.updateHashRate(p);
+        }
+    }
+
+    updateHashCapacity(): void {
+        this.hashCapacity = 16 * Math.pow(2, this.cache);
+    }
+
+    updateHashRate(p: IPlayer): void {
+        const baseGain = HacknetServerHashesPerLevel * this.level;
+        const coreMultiplier = Math.pow(1.1, this.cores - 1);
+        const ramRatio = (1 - this.ramUsed / this.maxRam);
+
+        const hashRate = baseGain * coreMultiplier * ramRatio;
+
+        this.hashRate = hashRate * p.hacknet_node_money_mult * BitNodeMultipliers.HacknetNodeMoney;
+
+        if (isNaN(this.hashRate)) {
+            this.hashRate = 0;
+            dialogBoxCreate(`Error calculating Hacknet Server hash production. This is a bug. Please report to game dev`, false);
+        }
+    }
+
+    // Serialize the current object to a JSON save state
+    toJSON(): any {
+        return Generic_toJSON("HacknetServer", this);
+    }
+}
+
+Reviver.constructors.HacknetServer = HacknetServer;

src/Hacknet/HashManager.ts

@@ -0,0 +1,151 @@
+/**
+ * This is a central class for storing and managing the player's hashes,
+ * which are generated by Hacknet Servers
+ *
+ * It is also used to keep track of what upgrades the player has bought with
+ * his hashes, and contains method for grabbing the data/multipliers from
+ * those upgrades
+ */
+import { HacknetServer } from "./HacknetServer";
+import { HashUpgrades } from "./HashUpgrades";
+
+import { IMap } from "../types";
+import { IPlayer } from "../PersonObjects/IPlayer";
+import { Generic_fromJSON,
+         Generic_toJSON,
+         Reviver } from "../../utils/JSONReviver";
+
+export class HashManager {
+    // Initiatizes a HashManager object from a JSON save state.
+    static fromJSON(value: any): HashManager {
+        return Generic_fromJSON(HashManager, value.data);
+    }
+
+    // Max number of hashes this can hold. Equal to the sum of capacities of
+    // all Hacknet Servers
+    capacity: number = 0;
+
+    // Number of hashes currently in storage
+    hashes: number = 0;
+
+    // Map of Hash Upgrade Name -> levels in that upgrade
+    upgrades: IMap<number> = {};
+
+    constructor() {
+        for (const name in HashUpgrades) {
+            this.upgrades[name] = 0;
+        }
+    }
+
+    /**
+     * Generic helper function for getting a multiplier from a HashUpgrade
+     */
+    getMult(upgName: string): number {
+        const upg = HashUpgrades[upgName];
+        const currLevel = this.upgrades[upgName];
+        if (upg == null || currLevel == null) {
+            console.error(`Could not find Hash Study upgrade`);
+            return 1;
+        }
+
+        return 1 + ((upg.value * currLevel) / 100);
+    }
+
+    /**
+     * One of the Hash upgrades improves studying. This returns that multiplier
+     */
+    getStudyMult(): number {
+        const upgName = "Improve Studying";
+
+        return this.getMult(upgName);
+    }
+
+    /**
+     * One of the Hash upgrades improves gym training. This returns that multiplier
+     */
+    getTrainingMult(): number {
+        const upgName = "Improve Gym Training";
+
+        return this.getMult(upgName);
+    }
+
+    /**
+     * Get the cost (in hashes) of an upgrade
+     */
+    getUpgradeCost(upgName: string): number {
+        const upg = HashUpgrades[upgName];
+        const currLevel = this.upgrades[upgName];
+        if (upg == null || currLevel == null) {
+            console.error(`Invalid Upgrade Name given to HashManager.getUpgradeCost(): ${upgName}`);
+            return Infinity;
+        }
+
+        return upg.getCost(currLevel);
+    }
+
+    storeHashes(numHashes: number): void {
+        this.hashes += numHashes;
+        this.hashes = Math.min(this.hashes, this.capacity);
+    }
+
+    /**
+     * Reverts an upgrade and refunds the hashes used to buy it
+     */
+    refundUpgrade(upgName: string): void {
+        const upg = HashUpgrades[upgName];
+        const currLevel = this.upgrades[upgName];
+        if (upg == null || currLevel == null || currLevel === 0) {
+            console.error(`Invalid Upgrade Name given to HashManager.upgrade(): ${upgName}`);
+            return;
+        }
+
+        // Reduce the level first, so we get the right cost
+        --this.upgrades[upgName];
+        const cost = upg.getCost(currLevel);
+        this.hashes += cost;
+    }
+
+    updateCapacity(p: IPlayer): void {
+        if (p.hacknetNodes.length <= 0) { this.capacity = 0; }
+        if (!(p.hacknetNodes[0] instanceof HacknetServer)) { this.capacity = 0; }
+
+        let total: number = 0;
+        for (let i = 0; i < p.hacknetNodes.length; ++i) {
+            const hacknetServer = <HacknetServer>(p.hacknetNodes[i]);
+            total += hacknetServer.hashCapacity;
+        }
+
+        this.capacity = total;
+    }
+
+    /**
+     * Returns boolean indicating whether or not the upgrade was successfully purchased
+     * Note that this does NOT actually implement the effect
+     */
+    upgrade(upgName: string): boolean {
+        const upg = HashUpgrades[upgName];
+        const currLevel = this.upgrades[upgName];
+        if (upg == null || currLevel == null) {
+            console.error(`Invalid Upgrade Name given to HashManager.upgrade(): ${upgName}`);
+            return false;
+        }
+
+        const cost = upg.getCost(currLevel);
+
+        if (this.hashes < cost) {
+            return false;
+        }
+
+        this.hashes -= cost;
+        ++this.upgrades[upgName];
+
+        return true;
+    }
+
+    //Serialize the current object to a JSON save state.
+    toJSON(): any {
+        return Generic_toJSON("HashManager", this);
+    }
+}
+
+Reviver.constructors.HashManager = HashManager;

src/Hacknet/HashUpgrade.ts

@@ -0,0 +1,48 @@
+/**
+ * Object representing an upgrade that can be purchased with hashes
+ */
+export interface IConstructorParams {
+    costPerLevel: number;
+    desc: string;
+    hasTargetServer?: boolean;
+    name: string;
+    value: number;
+}
+
+export class HashUpgrade {
+    /**
+     * Base cost for this upgrade. Every time the upgrade is purchased,
+     * its cost increases by this same amount (so its 1x, 2x, 3x, 4x, etc.)
+     */
+    costPerLevel: number = 0;
+
+    /**
+     * Description of what the upgrade does
+     */
+    desc: string = "";
+
+    /**
+     * Boolean indicating that this upgrade's effect affects a single server,
+     * the "target" server
+     */
+    hasTargetServer: boolean = false;
+
+    // Name of upgrade
+    name: string = "";
+
+    // Generic value used to indicate the potency/amount of this upgrade's effect
+    // The meaning varies between different upgrades
+    value: number = 0;
+
+    constructor(p: IConstructorParams) {
+        this.costPerLevel = p.costPerLevel;
+        this.desc = p.desc;
+        this.hasTargetServer = p.hasTargetServer ? p.hasTargetServer : false;
+        this.name = p.name;
+        this.value = p.value;
+    }
+
+    getCost(levels: number): number {
+        return Math.round((levels + 1) * this.costPerLevel);
+    }
+}

src/Hacknet/HashUpgrades.ts

@@ -0,0 +1,18 @@
+/**
+ * Map of all Hash Upgrades
+ * Key = Hash name, Value = HashUpgrade object
+ */
+import { HashUpgrade,
+         IConstructorParams } from "./HashUpgrade";
+import { HashUpgradesMetadata } from "./data/HashUpgradesMetadata";
+import { IMap } from "../types";
+
+export const HashUpgrades: IMap<HashUpgrade> = {};
+
+function createHashUpgrade(p: IConstructorParams) {
+    HashUpgrades[p.name] = new HashUpgrade(p);
+}
+
+for (const metadata of HashUpgradesMetadata) {
+    createHashUpgrade(metadata);
+}

src/Hacknet/IHacknetNode.ts

@@ -0,0 +1,16 @@
+// Interface for a Hacknet Node. Implemented by both a basic Hacknet Node,
+// and the upgraded Hacknet Server in BitNode-9
+import { IPlayer } from "../PersonObjects/IPlayer";
+
+export interface IHacknetNode {
+    cores: number;
+    level: number;
+    onlineTimeSeconds: number;
+
+    calculateCoreUpgradeCost: (levels: number, p: IPlayer) => number;
+    calculateLevelUpgradeCost: (levels: number, p: IPlayer) => number;
+    calculateRamUpgradeCost: (levels: number, p: IPlayer) => number;
+    purchaseCoreUpgrade: (levels: number, p: IPlayer) => boolean;
+    purchaseLevelUpgrade: (levels: number, p: IPlayer) => boolean;
+    purchaseRamUpgrade: (levels: number, p: IPlayer) => boolean;
+}

src/Hacknet/data/HashUpgradesMetadata.ts

@@ -0,0 +1,64 @@
+// Metadata used to construct all Hash Upgrades
+import { IConstructorParams } from "../HashUpgrade";
+
+export const HashUpgradesMetadata: IConstructorParams[] = [
+    {
+        costPerLevel: 2,
+        desc: "Sell hashes for $1m",
+        name: "Sell for Money",
+        value: 1e6,
+    },
+    {
+        costPerLevel: 100,
+        desc: "Sell hashes for $1b in Corporation funds",
+        name: "Sell for Corporation Funds",
+        value: 1e9,
+    },
+    {
+        costPerLevel: 100,
+        desc: "Use hashes to decrease the minimum security of a single server by 5%. " +
+              "Note that a server's minimum security cannot go below 1.",
+        hasTargetServer: true,
+        name: "Reduce Minimum Security",
+        value: 0.95,
+    },
+    {
+        costPerLevel: 100,
+        desc: "Use hashes to increase the maximum amount of money on a single server by 5%",
+        hasTargetServer: true,
+        name: "Increase Maximum Money",
+        value: 1.05,
+    },
+    {
+        costPerLevel: 100,
+        desc: "Use hashes to improve the experience earned when studying at a university. " +
+              "This effect persists until you install Augmentations",
+        name: "Improve Studying",
+        value: 20, // Improves studying by value%
+    },
+    {
+        costPerLevel: 100,
+        desc: "Use hashes to improve the experience earned when training at the gym. This effect " +
+              "persists until you install Augmentations",
+        name: "Improve Gym Training",
+        value: 20, // Improves training by value%
+    },
+    {
+        costPerLevel: 250,
+        desc: "Exchange hashes for 1k Scientific Research in all of your Corporation's Industries",
+        name: "Exchange for Corporation Research",
+        value: 1000,
+    },
+    {
+        costPerLevel: 250,
+        desc: "Exchange hashes for 100 Bladeburner Rank",
+        name: "Exchange for Bladeburner Rank",
+        value: 100,
+    },
+    {
+        costPerLevel: 200,
+        desc: "Generate a random Coding Contract on your home computer",
+        name: "Generate Coding Contract",
+        value: 1,
+    },
+]

src/Hacknet/ui/GeneralInfo.jsx

@@ -0,0 +1,56 @@
+/**
+ * React Component for the Hacknet Node UI
+ *
+ * Displays general information about Hacknet Nodes
+ */
+import React from "react";
+
+import { hasHacknetServers } from "../HacknetHelpers";
+
+export class GeneralInfo extends React.Component {
+    getSecondParagraph() {
+        if (hasHacknetServers()) {
+            return `Here, you can purchase a Hacknet Server, an upgraded version of the Hacknet Node. ` +
+                   `Hacknet Servers will perform computations and operations on the network, earning ` +
+                   `you hashes. Hashes can be spent on a variety of different upgrades.`;
+        } else {
+            return `Here, you can purchase a Hacknet Node, a specialized machine that can connect ` +
+                   `and contribute its resources to the Hacknet networ. This allows you to take ` +
+                   `a small percentage of profits from hacks performed on the network. Essentially, ` +
+                   `you are renting out your Node's computing power.`;
+        }
+    }
+
+    getThirdParagraph() {
+        if (hasHacknetServers()) {
+            return `Hacknet Servers can also be used as servers to run scripts. However, running scripts ` +
+                   `on a server will reduce its hash rate (hashes generated per second). A Hacknet Server's hash ` +
+                   `rate will be reduced by the percentage of RAM that is being used by that Server to run ` +
+                   `scripts.`
+        } else {
+            return `Each Hacknet Node you purchase will passively earn you money. Each Hacknet Node ` +
+                   `can be upgraded in order to increase its computing power and thereby increase ` +
+                   `the profit you earn from it.`;
+        }
+    }
+
+    render() {
+        return (
+            <div>
+                <p className={"hacknet-general-info"}>
+                    The Hacknet is a global, decentralized network of machines. It is used by
+                    hackers all around the world to anonymously share computing power and
+                    perform distributed cyberattacks without the fear of being traced.
+                </p>
+                <br />
+                <p className={"hacknet-general-info"}>
+                    {this.getSecondParagraph()}
+                </p>
+                <br />
+                <p className={"hacknet-general-info"}>
+                    {this.getThirdParagraph()}
+                </p>
+            </div>
+        )
+    }
+}

src/Hacknet/ui/HacknetNode.jsx

@@ -0,0 +1,153 @@
+/**
+ * React Component for the Hacknet Node UI.
+ * This Component displays the panel for a single Hacknet Node
+ */
+import React from "react";
+
+import { HacknetNodeMaxLevel,
+         HacknetNodeMaxRam,
+         HacknetNodeMaxCores } from "../HacknetNode";
+import { getMaxNumberLevelUpgrades,
+         getMaxNumberRamUpgrades,
+         getMaxNumberCoreUpgrades } from "../HacknetHelpers";
+
+import { Player } from "../../Player";
+
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+export class HacknetNode extends React.Component {
+    render() {
+        const node = this.props.node;
+        const purchaseMult = this.props.purchaseMultiplier;
+        const recalculate = this.props.recalculate;
+
+        // Upgrade Level Button
+        let upgradeLevelText, upgradeLevelClass;
+        if (node.level >= HacknetNodeMaxLevel) {
+            upgradeLevelText = "MAX LEVEL";
+            upgradeLevelClass = "std-button-disabled";
+        } else {
+            let multiplier = 0;
+            if (purchaseMult === "MAX") {
+                multiplier = getMaxNumberLevelUpgrades(node, HacknetNodeMaxLevel);
+            } else {
+                const levelsToMax = HacknetNodeMaxLevel - node.level;
+                multiplier = Math.min(levelsToMax, purchaseMult);
+            }
+
+            const upgradeLevelCost = node.calculateLevelUpgradeCost(multiplier, Player);
+            upgradeLevelText = `Upgrade x${multiplier} - ${numeralWrapper.formatMoney(upgradeLevelCost)}`;
+            if (Player.money.lt(upgradeLevelCost)) {
+                upgradeLevelClass = "std-button-disabled";
+            } else {
+                upgradeLevelClass = "std-button";
+            }
+        }
+        const upgradeLevelOnClick = () => {
+            let numUpgrades = purchaseMult;
+            if (purchaseMult === "MAX") {
+                numUpgrades = getMaxNumberLevelUpgrades(node, HacknetNodeMaxLevel);
+            }
+            node.purchaseLevelUpgrade(numUpgrades, Player);
+            recalculate();
+            return false;
+        }
+
+        let upgradeRamText, upgradeRamClass;
+        if (node.ram >= HacknetNodeMaxRam) {
+            upgradeRamText = "MAX RAM";
+            upgradeRamClass = "std-button-disabled";
+        } else {
+            let multiplier = 0;
+            if (purchaseMult === "MAX") {
+                multiplier = getMaxNumberRamUpgrades(node, HacknetNodeMaxRam);
+            } else {
+                const levelsToMax = Math.round(Math.log2(HacknetNodeMaxRam / node.ram));
+                multiplier = Math.min(levelsToMax, purchaseMult);
+            }
+
+            const upgradeRamCost = node.calculateRamUpgradeCost(multiplier, Player);
+            upgradeRamText = `Upgrade x${multiplier} - ${numeralWrapper.formatMoney(upgradeRamCost)}`;
+            if (Player.money.lt(upgradeRamCost)) {
+                upgradeRamClass = "std-button-disabled";
+            } else {
+                upgradeRamClass = "std-button";
+            }
+        }
+        const upgradeRamOnClick = () => {
+            let numUpgrades = purchaseMult;
+            if (purchaseMult === "MAX") {
+                numUpgrades = getMaxNumberRamUpgrades(node, HacknetNodeMaxRam);
+            }
+            node.purchaseRamUpgrade(numUpgrades, Player);
+            recalculate();
+            return false;
+        }
+
+        let upgradeCoresText, upgradeCoresClass;
+        if (node.cores >= HacknetNodeMaxCores) {
+            upgradeCoresText = "MAX CORES";
+            upgradeCoresClass = "std-button-disabled";
+        } else {
+            let multiplier = 0;
+            if (purchaseMult === "MAX") {
+                multiplier = getMaxNumberCoreUpgrades(node, HacknetNodeMaxCores);
+            } else {
+                const levelsToMax = HacknetNodeMaxCores - node.cores;
+                multiplier = Math.min(levelsToMax, purchaseMult);
+            }
+
+            const upgradeCoreCost = node.calculateCoreUpgradeCost(multiplier, Player);
+            upgradeCoresText = `Upgrade x${multiplier} - ${numeralWrapper.formatMoney(upgradeCoreCost)}`;
+            if (Player.money.lt(upgradeCoreCost)) {
+                upgradeCoresClass = "std-button-disabled";
+            } else {
+                upgradeCoresClass = "std-button";
+            }
+        }
+        const upgradeCoresOnClick = () => {
+            let numUpgrades = purchaseMult;
+            if (purchaseMult === "MAX") {
+                numUpgrades = getMaxNumberCoreUpgrades(node, HacknetNodeMaxCores);
+            }
+            node.purchaseCoreUpgrade(numUpgrades, Player);
+            recalculate();
+            return false;
+        }
+
+        return (
+            <li className={"hacknet-node"}>
+                <div className={"hacknet-node-container"}>
+                    <div className={"row"}>
+                        <p>Node name:</p>
+                        <span className={"text"}>{node.name}</span>
+                    </div>
+                    <div className={"row"}>
+                        <p>Production:</p>
+                        <span className={"text money-gold"}>
+                            {numeralWrapper.formatMoney(node.totalMoneyGenerated)} ({numeralWrapper.formatMoney(node.moneyGainRatePerSecond)} / sec)
+                        </span>
+                    </div>
+                    <div className={"row"}>
+                        <p>Level:</p><span className={"text upgradable-info"}>{node.level}</span>
+                        <button className={upgradeLevelClass} onClick={upgradeLevelOnClick}>
+                            {upgradeLevelText}
+                        </button>
+                    </div>
+                    <div className={"row"}>
+                        <p>RAM:</p><span className={"text upgradable-info"}>{node.ram}GB</span>
+                        <button className={upgradeRamClass} onClick={upgradeRamOnClick}>
+                            {upgradeRamText}
+                        </button>
+                    </div>
+                    <div className={"row"}>
+                        <p>Cores:</p><span className={"text upgradable-info"}>{node.cores}</span>
+                        <button className={upgradeCoresClass} onClick={upgradeCoresOnClick}>
+                            {upgradeCoresText}
+                        </button>
+                    </div>
+                </div>
+            </li>
+        )
+    }
+}

src/Hacknet/ui/HacknetServer.jsx

@@ -0,0 +1,200 @@
+/**
+ * React Component for the Hacknet Node UI.
+ * This Component displays the panel for a single Hacknet Node
+ */
+import React from "react";
+
+import { HacknetServerMaxLevel,
+         HacknetServerMaxRam,
+         HacknetServerMaxCores,
+         HacknetServerMaxCache } from "../HacknetServer";
+import { getMaxNumberLevelUpgrades,
+         getMaxNumberRamUpgrades,
+         getMaxNumberCoreUpgrades,
+         getMaxNumberCacheUpgrades } from "../HacknetHelpers";
+
+import { Player } from "../../Player";
+
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+export class HacknetServer extends React.Component {
+    render() {
+        const node = this.props.node;
+        const purchaseMult = this.props.purchaseMultiplier;
+        const recalculate = this.props.recalculate;
+
+        // Upgrade Level Button
+        let upgradeLevelText, upgradeLevelClass;
+        if (node.level >= HacknetServerMaxLevel) {
+            upgradeLevelText = "MAX LEVEL";
+            upgradeLevelClass = "std-button-disabled";
+        } else {
+            let multiplier = 0;
+            if (purchaseMult === "MAX") {
+                multiplier = getMaxNumberLevelUpgrades(node, HacknetServerMaxLevel);
+            } else {
+                const levelsToMax = HacknetServerMaxLevel - node.level;
+                multiplier = Math.min(levelsToMax, purchaseMult);
+            }
+
+            const upgradeLevelCost = node.calculateLevelUpgradeCost(multiplier, Player);
+            upgradeLevelText = `Upgrade x${multiplier} - ${numeralWrapper.formatMoney(upgradeLevelCost)}`;
+            if (Player.money.lt(upgradeLevelCost)) {
+                upgradeLevelClass = "std-button-disabled";
+            } else {
+                upgradeLevelClass = "std-button";
+            }
+        }
+        const upgradeLevelOnClick = () => {
+            let numUpgrades = purchaseMult;
+            if (purchaseMult === "MAX") {
+                numUpgrades = getMaxNumberLevelUpgrades(node, HacknetServerMaxLevel);
+            }
+            node.purchaseLevelUpgrade(numUpgrades, Player);
+            recalculate();
+            return false;
+        }
+
+        // Upgrade RAM Button
+        let upgradeRamText, upgradeRamClass;
+        if (node.maxRam >= HacknetServerMaxRam) {
+            upgradeRamText = "MAX RAM";
+            upgradeRamClass = "std-button-disabled";
+        } else {
+            let multiplier = 0;
+            if (purchaseMult === "MAX") {
+                multiplier = getMaxNumberRamUpgrades(node, HacknetServerMaxRam);
+            } else {
+                const levelsToMax = Math.round(Math.log2(HacknetServerMaxRam / node.maxRam));
+                multiplier = Math.min(levelsToMax, purchaseMult);
+            }
+
+            const upgradeRamCost = node.calculateRamUpgradeCost(multiplier, Player);
+            upgradeRamText = `Upgrade x${multiplier} - ${numeralWrapper.formatMoney(upgradeRamCost)}`;
+            if (Player.money.lt(upgradeRamCost)) {
+                upgradeRamClass = "std-button-disabled";
+            } else {
+                upgradeRamClass = "std-button";
+            }
+        }
+        const upgradeRamOnClick = () => {
+            let numUpgrades = purchaseMult;
+            if (purchaseMult === "MAX") {
+                numUpgrades = getMaxNumberRamUpgrades(node, HacknetServerMaxRam);
+            }
+            node.purchaseRamUpgrade(numUpgrades, Player);
+            recalculate();
+            return false;
+        }
+
+        // Upgrade Cores Button
+        let upgradeCoresText, upgradeCoresClass;
+        if (node.cores >= HacknetServerMaxCores) {
+            upgradeCoresText = "MAX CORES";
+            upgradeCoresClass = "std-button-disabled";
+        } else {
+            let multiplier = 0;
+            if (purchaseMult === "MAX") {
+                multiplier = getMaxNumberCoreUpgrades(node, HacknetServerMaxCores);
+            } else {
+                const levelsToMax = HacknetServerMaxCores - node.cores;
+                multiplier = Math.min(levelsToMax, purchaseMult);
+            }
+
+            const upgradeCoreCost = node.calculateCoreUpgradeCost(multiplier, Player);
+            upgradeCoresText = `Upgrade x${multiplier} - ${numeralWrapper.formatMoney(upgradeCoreCost)}`;
+            if (Player.money.lt(upgradeCoreCost)) {
+                upgradeCoresClass = "std-button-disabled";
+            } else {
+                upgradeCoresClass = "std-button";
+            }
+        }
+        const upgradeCoresOnClick = () => {
+            let numUpgrades = purchaseMult;
+            if (purchaseMult === "MAX") {
+                numUpgrades = getMaxNumberCoreUpgrades(node, HacknetServerMaxCores);
+            }
+            node.purchaseCoreUpgrade(numUpgrades, Player);
+            recalculate();
+            return false;
+        }
+
+        // Upgrade Cache button
+        let upgradeCacheText, upgradeCacheClass;
+        if (node.cache >= HacknetServerMaxCache) {
+            upgradeCacheText = "MAX CACHE";
+            upgradeCacheClass = "std-button-disabled";
+        } else {
+            let multiplier = 0;
+            if (purchaseMult === "MAX") {
+                multiplier = getMaxNumberCacheUpgrades(node, HacknetServerMaxCache);
+            } else {
+                const levelsToMax = HacknetServerMaxCache - node.cache;
+                multiplier = Math.min(levelsToMax, purchaseMult);
+            }
+
+            const upgradeCacheCost = node.calculateCacheUpgradeCost(multiplier);
+            upgradeCacheText = `Upgrade x${multiplier} - ${numeralWrapper.formatMoney(upgradeCacheCost)}`;
+            if (Player.money.lt(upgradeCacheCost)) {
+                upgradeCacheClass = "std-button-disabled";
+            } else {
+                upgradeCacheClass = "std-button";
+            }
+        }
+        const upgradeCacheOnClick = () => {
+            let numUpgrades = purchaseMult;
+            if (purchaseMult === "MAX") {
+                numUpgrades = getMaxNumberCacheUpgrades(node, HacknetServerMaxCache);
+            }
+            node.purchaseCacheUpgrade(numUpgrades, Player);
+            recalculate();
+            Player.hashManager.updateCapacity(Player);
+            return false;
+        }
+
+        return (
+            <li className={"hacknet-node"}>
+                <div className={"hacknet-node-container"}>
+                    <div className={"row"}>
+                        <p>Node name:</p>
+                        <span className={"text"}>{node.hostname}</span>
+                    </div>
+                    <div className={"row"}>
+                        <p>Production:</p>
+                        <span className={"text money-gold"}>
+                            {numeralWrapper.formatBigNumber(node.totalHashesGenerated)} ({numeralWrapper.formatBigNumber(node.hashRate)} / sec)
+                        </span>
+                    </div>
+                    <div className={"row"}>
+                        <p>Hash Capacity:</p>
+                        <span className={"text"}>{node.hashCapacity}</span>
+                    </div>
+                    <div className={"row"}>
+                        <p>Level:</p><span className={"text upgradable-info"}>{node.level}</span>
+                        <button className={upgradeLevelClass} onClick={upgradeLevelOnClick}>
+                            {upgradeLevelText}
+                        </button>
+                    </div>
+                    <div className={"row"}>
+                        <p>RAM:</p><span className={"text upgradable-info"}>{node.maxRam}GB</span>
+                        <button className={upgradeRamClass} onClick={upgradeRamOnClick}>
+                            {upgradeRamText}
+                        </button>
+                    </div>
+                    <div className={"row"}>
+                        <p>Cores:</p><span className={"text upgradable-info"}>{node.cores}</span>
+                        <button className={upgradeCoresClass} onClick={upgradeCoresOnClick}>
+                            {upgradeCoresText}
+                        </button>
+                    </div>
+                    <div className={"row"}>
+                        <p>Cache Level:</p><span className={"text upgradable-info"}>{node.cache}</span>
+                        <button className={upgradeCacheClass} onClick={upgradeCacheOnClick}>
+                            {upgradeCacheText}
+                        </button>
+                    </div>
+                </div>
+            </li>
+        )
+    }
+}

src/Hacknet/ui/HashUpgradePopup.jsx

@@ -0,0 +1,137 @@
+/**
+ * Create the pop-up for purchasing upgrades with hashes
+ */
+import React from "react";
+
+import { purchaseHashUpgrade } from "../HacknetHelpers";
+import { HashManager } from "../HashManager";
+import { HashUpgrades } from "../HashUpgrades";
+
+import { Player } from "../../Player";
+import { AllServers } from "../../Server/AllServers";
+import { Server } from "../../Server/Server";
+
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+import { removePopup } from "../../ui/React/createPopup";
+import { ServerDropdown,
+         ServerType } from "../../ui/React/ServerDropdown"
+
+import { dialogBoxCreate } from "../../../utils/DialogBox";
+
+class HashUpgrade extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.state = {
+            selectedServer: "foodnstuff",
+        }
+
+        this.changeTargetServer = this.changeTargetServer.bind(this);
+        this.purchase = this.purchase.bind(this, this.props.hashManager, this.props.upg);
+    }
+
+    changeTargetServer(e) {
+        this.setState({
+            selectedServer: e.target.value
+        });
+    }
+
+    purchase(hashManager, upg) {
+        const canPurchase = hashManager.hashes >= hashManager.getUpgradeCost(upg.name);
+        if (canPurchase) {
+            const res = purchaseHashUpgrade(upg.name, this.state.selectedServer);
+            if (res) {
+                this.props.rerender();
+            } else {
+                dialogBoxCreate("Failed to purchase upgrade. This may be because you do not have enough hashes, " +
+                                "or because you do not have access to the feature this upgrade affects.");
+            }
+        }
+    }
+
+    render() {
+        const hashManager = this.props.hashManager;
+        const upg = this.props.upg;
+        const cost = hashManager.getUpgradeCost(upg.name);
+
+        // Purchase button
+        const canPurchase = hashManager.hashes >= cost;
+        const btnClass = canPurchase ? "std-button" : "std-button-disabled";
+
+        // We'll reuse a Bladeburner css class
+        return (
+            <div className={"bladeburner-action"}>
+                <h2>{upg.name}</h2>
+                <p>Cost: {numeralWrapper.format(cost, "0.000a")}</p>
+                <p>{upg.desc}</p>
+                <button className={btnClass} onClick={this.purchase}>
+                    Purchase
+                </button>
+                {
+                    upg.hasTargetServer &&
+                    <ServerDropdown
+                        serverType={ServerType.Foreign}
+                        onChange={this.changeTargetServer}
+                        style={{margin: "5px"}}
+                    />
+                }
+            </div>
+        )
+    }
+}
+
+export class HashUpgradePopup extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.closePopup = this.closePopup.bind(this);
+
+        this.state = {
+            totalHashes: Player.hashManager.hashes,
+        }
+    }
+
+    componentDidMount() {
+        this.interval = setInterval(() => this.tick(), 1e3);
+    }
+
+    componentWillUnmount() {
+        clearInterval(this.interval);
+    }
+
+    closePopup() {
+        removePopup(this.props.popupId);
+    }
+
+    tick() {
+        this.setState({
+            totalHashes: Player.hashManager.hashes,
+        })
+    }
+
+    render() {
+        const rerender = this.props.rerender;
+
+        const hashManager = Player.hashManager;
+        if (!(hashManager instanceof HashManager)) {
+            throw new Error(`Player does not have a HashManager)`);
+        }
+
+        const upgradeElems = Object.keys(HashUpgrades).map((upgName) => {
+            const upg = HashUpgrades[upgName];
+            return <HashUpgrade upg={upg} hashManager={hashManager} key={upg.name} rerender={rerender} />
+        });
+
+        return (
+            <div>
+                <button className={"std-button"} onClick={this.closePopup}>
+                    Close
+                </button>
+                <p>Spend your hashes on a variety of different upgrades</p>
+                <p>Hashes: {numeralWrapper.formatBigNumber(this.state.totalHashes)}</p>
+                {upgradeElems}
+            </div>
+        )
+    }
+}

src/Hacknet/ui/MultiplierButtons.jsx

@@ -0,0 +1,41 @@
+/**
+ * React Component for the Multiplier buttons on the Hacknet page.
+ * These buttons let the player control how many Nodes/Upgrades they're
+ * purchasing when using the UI (x1, x5, x10, MAX)
+ */
+import React from "react";
+
+import { PurchaseMultipliers } from "./Root";
+
+function MultiplierButton(props) {
+    return (
+        <button className={props.className} onClick={props.onClick}>{props.text}</button>
+    )
+}
+
+export function MultiplierButtons(props) {
+    if (props.purchaseMultiplier == null) {
+        throw new Error(`MultiplierButtons constructed without required props`);
+    }
+
+    const mults = ["x1", "x5", "x10", "MAX"];
+    const onClicks = props.onClicks;
+    const buttons = [];
+    for (let i = 0; i < mults.length; ++i) {
+        const mult = mults[i];
+        const btnProps = {
+            className: props.purchaseMultiplier === PurchaseMultipliers[mult] ? "std-button-disabled" : "std-button",
+            key: mult,
+            onClick: onClicks[i],
+            text: mult,
+        }
+
+        buttons.push(<MultiplierButton {...btnProps} />)
+    }
+
+    return (
+        <span id={"hacknet-nodes-multipliers"}>
+            {buttons}
+        </span>
+    )
+}

src/Hacknet/ui/PlayerInfo.jsx

@@ -0,0 +1,51 @@
+/**
+ * React Component for displaying Player info and stats on the Hacknet Node UI.
+ * This includes:
+ * - Player's money
+ * - Player's production from Hacknet Nodes
+ */
+import React from "react";
+
+import { hasHacknetServers } from "../HacknetHelpers";
+import { Player } from "../../Player";
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+export function PlayerInfo(props) {
+    const hasServers = hasHacknetServers();
+
+    let prod;
+    if (hasServers) {
+        prod = numeralWrapper.format(props.totalProduction, "0.000a") + " hashes / sec";
+    } else {
+        prod = numeralWrapper.formatMoney(props.totalProduction) + " / sec";
+    }
+
+    let hashInfo;
+    if (hasServers) {
+        hashInfo = numeralWrapper.format(Player.hashManager.hashes, "0.000a") + " / " +
+                   numeralWrapper.format(Player.hashManager.capacity, "0.000a");
+    }
+
+    return (
+        <p id={"hacknet-nodes-money"}>
+            <span>Money:</span>
+            <span className={"money-gold"}>{numeralWrapper.formatMoney(Player.money.toNumber())}</span><br />
+
+            {
+                hasServers &&
+                <span>Hashes:</span>
+            }
+            {
+                hasServers &&
+                <span className={"money-gold"}>{hashInfo}</span>
+            }
+            {
+                hasServers &&
+                <br />
+            }
+
+            <span>Total Hacknet Node Production:</span>
+            <span className={"money-gold"}>{prod}</span>
+        </p>
+    )
+}

src/Hacknet/ui/PurchaseButton.jsx

@@ -0,0 +1,40 @@
+/**
+ * React Component for the button that is used to purchase new Hacknet Nodes
+ */
+import React from "react";
+
+import { hasHacknetServers,
+         hasMaxNumberHacknetServers } from "../HacknetHelpers";
+import { Player } from "../../Player";
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+export function PurchaseButton(props) {
+    if (props.multiplier == null || props.onClick == null) {
+        throw new Error(`PurchaseButton constructed without required props`);
+    }
+
+    const cost = props.cost;
+    let className = Player.canAfford(cost) ? "std-button" : "std-button-disabled";
+    let text;
+    let style = null;
+    if (hasHacknetServers()) {
+        if (hasMaxNumberHacknetServers()) {
+            className = "std-button-disabled";
+            text = "Hacknet Server limit reached";
+            style = {color: "red"};
+        } else {
+            text = `Purchase Hacknet Server - ${numeralWrapper.formatMoney(cost)}`;
+        }
+    } else {
+        text = `Purchase Hacknet Node  - ${numeralWrapper.formatMoney(cost)}`;
+    }
+
+    return (
+        <button className={className}
+                onClick={props.onClick}
+                style={style}>
+            {text}
+        </button>
+
+    )
+}

src/Hacknet/ui/Root.jsx

@@ -0,0 +1,144 @@
+/**
+ * Root React Component for the Hacknet Node UI
+ */
+import React from "react";
+
+import { GeneralInfo } from "./GeneralInfo";
+import { HacknetNode } from "./HacknetNode";
+import { HacknetServer } from "./HacknetServer";
+import { HashUpgradePopup } from "./HashUpgradePopup";
+import { MultiplierButtons } from "./MultiplierButtons";
+import { PlayerInfo } from "./PlayerInfo";
+import { PurchaseButton } from "./PurchaseButton";
+
+import { getCostOfNextHacknetNode,
+         getCostOfNextHacknetServer,
+         hasHacknetServers,
+         purchaseHacknet } from "../HacknetHelpers";
+
+import { Player } from "../../Player";
+
+import { createPopup } from "../../ui/React/createPopup";
+
+export const PurchaseMultipliers = Object.freeze({
+    "x1": 1,
+    "x5": 5,
+    "x10": 10,
+    "MAX": "MAX",
+});
+
+export class HacknetRoot extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.state = {
+            purchaseMultiplier: PurchaseMultipliers.x1,
+            totalProduction: 0, // Total production ($ / s) of Hacknet Nodes
+        }
+
+        this.createHashUpgradesPopup = this.createHashUpgradesPopup.bind(this);
+    }
+
+    componentDidMount() {
+        this.recalculateTotalProduction();
+    }
+
+    createHashUpgradesPopup() {
+        const id = "hacknet-server-hash-upgrades-popup";
+        createPopup(id, HashUpgradePopup, { popupId: id, rerender: this.createHashUpgradesPopup });
+    }
+
+    recalculateTotalProduction() {
+        let total = 0;
+        for (let i = 0; i < Player.hacknetNodes.length; ++i) {
+            if (hasHacknetServers()) {
+                total += Player.hacknetNodes[i].hashRate;
+            } else {
+                total += Player.hacknetNodes[i].moneyGainRatePerSecond;
+            }
+        }
+
+        this.setState({
+            totalProduction: total,
+        });
+    }
+
+    setPurchaseMultiplier(mult) {
+        this.setState({
+            purchaseMultiplier: mult,
+        });
+    }
+
+    render() {
+        // Cost to purchase a new Hacknet Node
+        let purchaseCost;
+        if (hasHacknetServers()) {
+            purchaseCost = getCostOfNextHacknetServer();
+        } else {
+            purchaseCost = getCostOfNextHacknetNode();
+        }
+
+        // onClick event handler for purchase button
+        const purchaseOnClick = () => {
+            if (purchaseHacknet() >= 0) {
+                this.recalculateTotalProduction();
+                Player.hashManager.updateCapacity(Player);
+            }
+        }
+
+        // onClick event handlers for purchase multiplier buttons
+        const purchaseMultiplierOnClicks = [
+            this.setPurchaseMultiplier.bind(this, PurchaseMultipliers.x1),
+            this.setPurchaseMultiplier.bind(this, PurchaseMultipliers.x5),
+            this.setPurchaseMultiplier.bind(this, PurchaseMultipliers.x10),
+            this.setPurchaseMultiplier.bind(this, PurchaseMultipliers.MAX),
+        ];
+
+        // HacknetNode components
+        const nodes = Player.hacknetNodes.map((node) => {
+            if (hasHacknetServers()) {
+                return (
+                    <HacknetServer
+                        key={node.hostname}
+                        node={node}
+                        purchaseMultiplier={this.state.purchaseMultiplier}
+                        recalculate={this.recalculateTotalProduction.bind(this)}
+                    />
+                )
+            } else {
+                return (
+                    <HacknetNode
+                        key={node.name}
+                        node={node}
+                        purchaseMultiplier={this.state.purchaseMultiplier}
+                        recalculate={this.recalculateTotalProduction.bind(this)}
+                    />
+                )
+            }
+        });
+
+        return (
+            <div>
+                <h1>Hacknet Nodes</h1>
+                <GeneralInfo />
+
+                <PurchaseButton cost={purchaseCost} multiplier={this.state.purchaseMultiplier} onClick={purchaseOnClick} />
+
+                <br />
+                <div id={"hacknet-nodes-money-multipliers-div"}>
+                    <PlayerInfo totalProduction={this.state.totalProduction} />
+                    <MultiplierButtons onClicks={purchaseMultiplierOnClicks} purchaseMultiplier={this.state.purchaseMultiplier} />
+                </div>
+
+                {
+                    hasHacknetServers() &&
+                    <button className={"std-button"} onClick={this.createHashUpgradesPopup} style={{display: "block"}}>
+                        {"Spend Hashes on Upgrades"}
+                    </button>
+                }
+
+                <ul id={"hacknet-nodes-list"}>{nodes}</ul>
+            </div>
+        )
+    }
+}