BitNode-9 initial implementation

css/buttons.scss

@@ -38,6 +38,7 @@ button {
 }
 
 .a-link-button-inactive,
+.std-button-disabled,
 .std-button:disabled {
     text-decoration: none;
     background-color: #333;

css/characteroverview.scss

@@ -2,7 +2,7 @@
 @import "theme";
 
 /**
- * Styling for the Character Overview Panel (top-right)
+ * Styling for the Character Overview Panel (top-right panel)
  */
 
 #character-overview-wrapper {

css/hacknetnodes.scss

@@ -0,0 +1,75 @@
+@import "mixins";
+@import "theme";
+
+/**
+ * Styling for the Hacknet Nodes UI Page
+ */
+
+#hacknet-nodes-container {
+    position: fixed;
+    padding: 10px;
+}
+
+.hacknet-general-info {
+    margin: 10px;
+    width: 70vw;
+}
+
+#hacknet-nodes-container li {
+    float: left;
+    overflow: hidden;
+    white-space: nowrap;
+
+    &.hacknet-node {
+        $boxShadowArgs: inset 0 0 8px rgba(0, 0, 0, 0.1), 0 0 16px rgba(0, 0, 0, 0.1);
+        @include boxShadow($boxShadowArgs);
+
+        margin: 6px;
+        padding: 7px;
+        width: 35vw;
+        border: 2px solid var(--my-highlight-color);
+    }
+}
+
+#hacknet-nodes-list {
+    list-style: none;
+    width: 82vw;
+}
+
+#hacknet-nodes-money {
+    margin: 10px;
+    float: left;
+}
+
+#hacknet-nodes-money-multipliers-div {
+    display: inline-block;
+    width: 70vw;
+}
+
+#hacknet-nodes-multipliers {
+    float: right;
+}
+
+#hacknet-nodes-purchase-button {
+    display: inline-block;
+}
+
+.hacknet-node-container {
+    display: inline-table;
+
+    .row {
+        display: table-row;
+        height: 30px;
+
+        p {
+            display: table-cell;
+        }
+    }
+
+    .upgradable-info {
+        display: inline-block;
+        margin: 0 4px; /* Don't want the vertical margin/padding, just left & right */
+        padding: 0 4px;
+        width: $defaultFontSize * 4;
+    }
+}

css/menupages.scss

@@ -138,81 +138,6 @@
     }
 }
 
-/* Hacknet Nodes */
-#hacknet-nodes-container {
-    position: fixed;
-    padding: 10px;
-}
-
-#hacknet-nodes-text,
-#hacknet-nodes-container li {
-    margin: 10px;
-    padding: 10px;
-}
-
-#hacknet-nodes-container li {
-    float: left;
-    overflow: hidden;
-    white-space: nowrap;
-
-    &.hacknet-node {
-        $boxShadowArgs: inset 0 0 8px rgba(0, 0, 0, 0.1), 0 0 16px rgba(0, 0, 0, 0.1);
-        @include boxShadow($boxShadowArgs);
-
-        margin: 6px;
-        padding: 7px;
-        width: 35vw;
-        border: 2px solid var(--my-highlight-color);
-    }
-}
-
-#hacknet-nodes-list {
-    list-style: none;
-    width: 82vw;
-}
-
-#hacknet-nodes-money {
-    margin: 10px;
-    float: left;
-}
-
-#hacknet-nodes-money-multipliers-div {
-    display: inline-block;
-    width: 70vw;
-}
-
-#hacknet-nodes-multipliers {
-    float: right;
-}
-
-#hacknet-nodes-purchase-button {
-    display: inline-block;
-}
-
-.hacknet-node-container {
-    display: inline-table;
-
-    .row {
-        display: table-row;
-        height: 30px;
-
-        p {
-            display: table-cell;
-        }
-    }
-
-    .upgradable-info {
-        display: inline-block;
-        margin: 0 4px; /* Don't want the vertical margin/padding, just left & right */
-        padding: 0 4px;
-        width: $defaultFontSize * 4;
-    }
-}
-
-.menu-page-text {
-    width: 70vw;
-}
-
 /* World */
 #world-container {
     position: fixed;

src/Augmentation/AugmentationHelpers.js

@@ -2069,7 +2069,7 @@ function installAugmentations(cbScript=null) {
                 }
                 var runningScriptObj = new RunningScript(script, []); //No args
                 runningScriptObj.threads = 1; //Only 1 thread
-                home.runningScripts.push(runningScriptObj);
+                home.runScript(runningScriptObj, Player);
                 addWorkerScript(runningScriptObj, home);
             }
         }

src/BitNode/BitNode.ts

@@ -173,7 +173,10 @@ export function initBitNodes() {
                                           "Level 3: Ability to use limit/stop orders in other BitNodes<br><br>" +
                                           "This Source-File also increases your hacking growth multipliers by: " +
                                           "<br>Level 1: 12%<br>Level 2: 18%<br>Level 3: 21%");
-    BitNodes["BitNode9"] = new BitNode(9, "Do Androids Dream?", "COMING SOON");
+    BitNodes["BitNode9"] = new BitNode(9, "Hacktocracy", "Hacknet Unleashed",
+                                          "When Fulcrum Technologies released their open-source Linux distro Chapeau, it quickly " +
+                                          "became the OS of choice for the underground hacking community. Chapeau became especially notorious for " +
+                                          "powering the Hacknet, ");
     BitNodes["BitNode10"] = new BitNode(10, "Digital Carbon", "Your body is not who you are",
                                             "In 2084, VitaLife unveiled to the world the Persona Core, a technology that allowed people " +
                                             "to digitize their consciousness. Their consciousness could then be transferred into Synthoids " +
@@ -245,9 +248,9 @@ export function initBitNodeMultipliers(p: IPlayer) {
     }
 
     switch (p.bitNodeN) {
-        case 1: //Source Genesis (every multiplier is 1)
+        case 1: // Source Genesis (every multiplier is 1)
             break;
-        case 2: //Rise of the Underworld
+        case 2: // Rise of the Underworld
             BitNodeMultipliers.HackingLevelMultiplier   = 0.8;
             BitNodeMultipliers.ServerGrowthRate         = 0.8;
             BitNodeMultipliers.ServerMaxMoney           = 0.2;
@@ -257,7 +260,7 @@ export function initBitNodeMultipliers(p: IPlayer) {
             BitNodeMultipliers.FactionWorkRepGain       = 0.5;
             BitNodeMultipliers.FactionPassiveRepGain    = 0;
             break;
-        case 3: //Corporatocracy
+        case 3: // Corporatocracy
             BitNodeMultipliers.HackingLevelMultiplier   = 0.8;
             BitNodeMultipliers.RepToDonateToFaction     = 0.5;
             BitNodeMultipliers.AugmentationRepCost      = 3;
@@ -272,7 +275,7 @@ export function initBitNodeMultipliers(p: IPlayer) {
             BitNodeMultipliers.HomeComputerRamCost      = 1.5;
             BitNodeMultipliers.PurchasedServerCost      = 2;
             break;
-        case 4: //The Singularity
+        case 4: // The Singularity
             BitNodeMultipliers.ServerMaxMoney           = 0.15;
             BitNodeMultipliers.ServerStartingMoney      = 0.75;
             BitNodeMultipliers.ScriptHackMoney          = 0.2;
@@ -286,7 +289,7 @@ export function initBitNodeMultipliers(p: IPlayer) {
             BitNodeMultipliers.CrimeExpGain             = 0.5;
             BitNodeMultipliers.FactionWorkRepGain       = 0.75;
             break;
-        case 5: //Artificial intelligence
+        case 5: // Artificial intelligence
             BitNodeMultipliers.ServerMaxMoney           = 2;
             BitNodeMultipliers.ServerStartingSecurity   = 2;
             BitNodeMultipliers.ServerStartingMoney      = 0.5;
@@ -299,7 +302,7 @@ export function initBitNodeMultipliers(p: IPlayer) {
             BitNodeMultipliers.HackExpGain              = 0.5;
             BitNodeMultipliers.CorporationValuation     = 0.5;
             break;
-        case 6: //Bladeburner
+        case 6: // Bladeburner
             BitNodeMultipliers.HackingLevelMultiplier   = 0.35;
             BitNodeMultipliers.ServerMaxMoney           = 0.4;
             BitNodeMultipliers.ServerStartingMoney      = 0.5;
@@ -314,7 +317,7 @@ export function initBitNodeMultipliers(p: IPlayer) {
             BitNodeMultipliers.HackExpGain              = 0.25;
             BitNodeMultipliers.DaedalusAugsRequirement  = 1.166; // Results in 35 Augs needed
             break;
-        case 7: //Bladeburner 2079
+        case 7: // Bladeburner 2079
             BitNodeMultipliers.BladeburnerRank              = 0.6;
             BitNodeMultipliers.BladeburnerSkillCost         = 2;
             BitNodeMultipliers.AugmentationMoneyCost        = 3;
@@ -334,7 +337,7 @@ export function initBitNodeMultipliers(p: IPlayer) {
             BitNodeMultipliers.FourSigmaMarketDataApiCost   = 2;
             BitNodeMultipliers.DaedalusAugsRequirement      = 1.166; // Results in 35 Augs needed
             break;
-        case 8: //Ghost of Wall Street
+        case 8: // Ghost of Wall Street
             BitNodeMultipliers.ScriptHackMoney          = 0;
             BitNodeMultipliers.ManualHackMoney          = 0;
             BitNodeMultipliers.CompanyWorkMoney         = 0;
@@ -345,6 +348,19 @@ export function initBitNodeMultipliers(p: IPlayer) {
             BitNodeMultipliers.CorporationValuation     = 0;
             BitNodeMultipliers.CodingContractMoney      = 0;
             break;
+        case 9: // Hacktocracy
+            BitNodeMultipliers.HackingLevelMultiplier   = 0.3;
+            BitNodeMultipliers.StrengthLevelMultiplier  = 0.45;
+            BitNodeMultipliers.DefenseLevelMultiplier   = 0.45;
+            BitNodeMultipliers.DexterityLevelMultiplier = 0.45;
+            BitNodeMultipliers.AgilityLevelMultiplier   = 0.45;
+            BitNodeMultipliers.CharismaLevelMultiplier  = 0.45;
+            BitNodeMultipliers.PurchasedServerLimit     = 0;
+            BitNodeMultipliers.HomeComputerRamCost      = 3;
+            BitNodeMultipliers.CrimeMoney               = 0.5;
+            BitNodeMultipliers.ScriptHackMoney          = 0.1;
+            BitNodeMultipliers.HackExpGain              = 0.1;
+            break;
         case 10: // Digital Carbon
             BitNodeMultipliers.HackingLevelMultiplier   = 0.2;
             BitNodeMultipliers.StrengthLevelMultiplier  = 0.4;

src/BitNode/BitNodeMultipliers.ts

@@ -120,7 +120,8 @@ interface IBitNodeMultipliers {
     HackingLevelMultiplier: number;
 
     /**
-     * Influences how much money each Hacknet node can generate.
+     * Influences how much money is produced by Hacknet Nodes.
+     * Influeces the hash rate of Hacknet Servers (unlocked in BitNode-9)
      */
     HacknetNodeMoney: number;
 

src/Constants.ts

@@ -1,3 +1,8 @@
+/**
+ * Generic Game Constants
+ *
+ * Constants for specific mechanics or features will NOT be here.
+ */
 import {IMap} from "./types";
 
 export let CONSTANTS: IMap<any> = {
@@ -17,24 +22,9 @@ export let CONSTANTS: IMap<any> = {
     /* Base costs */
     BaseCostFor1GBOfRamHome: 32000,
     BaseCostFor1GBOfRamServer: 55000, //1 GB of RAM
-    BaseCostFor1GBOfRamHacknetNode: 30000,
 
     TravelCost: 200e3,
 
-    BaseCostForHacknetNode: 1000,
-    BaseCostForHacknetNodeCore: 500000,
-
-    /* Hacknet Node constants */
-    HacknetNodeMoneyGainPerLevel: 1.6,
-    HacknetNodePurchaseNextMult: 1.85,   //Multiplier when purchasing an additional hacknet node
-    HacknetNodeUpgradeLevelMult: 1.04,  //Multiplier for cost when upgrading level
-    HacknetNodeUpgradeRamMult: 1.28,     //Multiplier for cost when upgrading RAM
-    HacknetNodeUpgradeCoreMult: 1.48,    //Multiplier for cost when buying another core
-
-    HacknetNodeMaxLevel: 200,
-    HacknetNodeMaxRam: 64,
-    HacknetNodeMaxCores: 16,
-
     /* Faction and Company favor */
     BaseFavorToDonate:            150,
     DonateMoneyToRepDivisor:      1e6,

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>
+        )
+    }
+}

src/HacknetNode.js

@@ -1,694 +0,0 @@
-import { BitNodeMultipliers }                   from "./BitNode/BitNodeMultipliers";
-import { CONSTANTS }                            from "./Constants";
-import { Engine }                               from "./engine";
-import {iTutorialSteps, iTutorialNextStep,
-        ITutorial}                              from "./InteractiveTutorial";
-import {Player}                                 from "./Player";
-import {Page, routing}                          from "./ui/navigationTracking";
-import { numeralWrapper }                       from "./ui/numeralFormat";
-
-import {dialogBoxCreate}                        from "../utils/DialogBox";
-import {clearEventListeners}                    from "../utils/uiHelpers/clearEventListeners";
-import {Reviver, Generic_toJSON,
-        Generic_fromJSON}                       from "../utils/JSONReviver";
-import {createElement}                          from "../utils/uiHelpers/createElement";
-import {getElementById}                         from "../utils/uiHelpers/getElementById";
-
-// Stores total money gain rate from all of the player's Hacknet Nodes
-let TotalHacknetNodeProduction = 0;
-
-/**
- * Overwrites the inner text of the specified HTML element if it is different from what currently exists.
- * @param {string} elementId The HTML ID to find the first instance of.
- * @param {string} text The inner text that should be set.
- */
-function updateText(elementId, text) {
-    var el = getElementById(elementId);
-    if (el.innerText != text) {
-        el.innerText = text;
-    }
-};
-
-/* HacknetNode.js */
-function hacknetNodesInit() {
-    var performMapping = function(x) {
-        getElementById("hacknet-nodes-" + x.id + "-multiplier")
-            .addEventListener("click", function() {
-                hacknetNodePurchaseMultiplier = x.multiplier;
-                updateHacknetNodesMultiplierButtons();
-                updateHacknetNodesContent();
-                return false;
-            });
-    };
-
-    var mappings = [
-        { id: "1x", multiplier: 1 },
-        { id: "5x", multiplier: 5 },
-        { id: "10x", multiplier: 10 },
-        { id: "max", multiplier: 0 }
-    ];
-    for (var elem of mappings) {
-        // Encapsulate in a function so that the appropriate scope is kept in the click handler.
-        performMapping(elem);
-    }
-}
-
-document.addEventListener("DOMContentLoaded", hacknetNodesInit, false);
-
-function HacknetNode(name) {
-    this.level      = 1;
-    this.ram        = 1; //GB
-    this.cores      = 1;
-
-    this.name       = name;
-
-    this.totalMoneyGenerated    = 0;
-    this.onlineTimeSeconds      = 0;
-
-    this.moneyGainRatePerSecond = 0;
-}
-
-HacknetNode.prototype.updateMoneyGainRate = function() {
-    //How much extra $/s is gained per level
-    var gainPerLevel = CONSTANTS.HacknetNodeMoneyGainPerLevel;
-
-    this.moneyGainRatePerSecond = (this.level * gainPerLevel) *
-                                  Math.pow(1.035, this.ram-1) *
-                                  ((this.cores + 5) / 6) *
-                                  Player.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");
-    }
-
-    updateTotalHacknetProduction();
-}
-
-HacknetNode.prototype.calculateLevelUpgradeCost = function(levels=1) {
-    levels = Math.round(levels);
-    if (isNaN(levels) || levels < 1) {
-        return 0;
-    }
-
-    if (this.level >= CONSTANTS.HacknetNodeMaxLevel) {
-        return Infinity;
-    }
-
-    var mult = CONSTANTS.HacknetNodeUpgradeLevelMult;
-    var totalMultiplier = 0; //Summed
-    var currLevel = this.level;
-    for (var i = 0; i < levels; ++i) {
-        totalMultiplier += Math.pow(mult, currLevel);
-        ++currLevel;
-    }
-
-    return CONSTANTS.BaseCostForHacknetNode / 2 * totalMultiplier * Player.hacknet_node_level_cost_mult;
-}
-
-HacknetNode.prototype.purchaseLevelUpgrade = function(levels=1) {
-    levels = Math.round(levels);
-    var cost = this.calculateLevelUpgradeCost(levels);
-    if (isNaN(cost) || levels < 0) {
-        return false;
-    }
-
-    //If we're at max level, return false
-    if (this.level >= CONSTANTS.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 + levels > CONSTANTS.HacknetNodeMaxLevel) {
-        var diff = Math.max(0, CONSTANTS.HacknetNodeMaxLevel - this.level);
-        return this.purchaseLevelUpgrade(diff);
-    }
-
-    if (Player.money.lt(cost)) {
-        return false;
-    }
-
-    Player.loseMoney(cost);
-    this.level = Math.round(this.level + levels); //Just in case of floating point imprecision
-    this.updateMoneyGainRate();
-    return true;
-}
-
-HacknetNode.prototype.calculateRamUpgradeCost = function(levels=1) {
-    levels = Math.round(levels);
-    if (isNaN(levels) || levels < 1) {
-        return 0;
-    }
-
-    if (this.ram >= CONSTANTS.HacknetNodeMaxRam) {
-        return Infinity;
-    }
-
-    let totalCost = 0;
-    let numUpgrades = Math.round(Math.log2(this.ram));
-    let currentRam = this.ram;
-
-    for (let i = 0; i < levels; ++i) {
-        let baseCost = currentRam * CONSTANTS.BaseCostFor1GBOfRamHacknetNode;
-        let mult = Math.pow(CONSTANTS.HacknetNodeUpgradeRamMult, numUpgrades);
-
-        totalCost += (baseCost * mult);
-
-        currentRam *= 2;
-        ++numUpgrades;
-    }
-
-    totalCost *= Player.hacknet_node_ram_cost_mult
-    return totalCost;
-}
-
-HacknetNode.prototype.purchaseRamUpgrade = function(levels=1) {
-    levels = Math.round(levels);
-    var cost = this.calculateRamUpgradeCost(levels);
-    if (isNaN(cost) || levels < 0) {
-        return false;
-    }
-
-    // Fail if we're already at max
-    if (this.ram >= CONSTANTS.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, levels) > CONSTANTS.HacknetNodeMaxRam) {
-        var diff = Math.max(0, Math.log2(Math.round(CONSTANTS.HacknetNodeMaxRam / this.ram)));
-        return this.purchaseRamUpgrade(diff);
-    }
-
-    if (Player.money.lt(cost)) {
-        return false;
-    }
-
-    Player.loseMoney(cost);
-    for (let i = 0; i < levels; ++i) {
-        this.ram *= 2; //Ram is always doubled
-    }
-    this.ram = Math.round(this.ram); //Handle any floating point precision issues
-    this.updateMoneyGainRate();
-    return true;
-}
-
-HacknetNode.prototype.calculateCoreUpgradeCost = function(levels=1) {
-    levels = Math.round(levels);
-    if (isNaN(levels) || levels < 1) {
-        return 0;
-    }
-
-    if (this.cores >= CONSTANTS.HacknetNodeMaxCores) {
-        return Infinity;
-    }
-
-    const coreBaseCost  = CONSTANTS.BaseCostForHacknetNodeCore;
-    const mult          = CONSTANTS.HacknetNodeUpgradeCoreMult;
-    let totalCost       = 0;
-    let currentCores    = this.cores;
-    for (let i = 0; i < levels; ++i) {
-        totalCost += (coreBaseCost * Math.pow(mult, currentCores-1));
-        ++currentCores;
-    }
-
-    totalCost *= Player.hacknet_node_core_cost_mult;
-
-    return totalCost;
-}
-
-HacknetNode.prototype.purchaseCoreUpgrade = function(levels=1) {
-    levels = Math.round(levels);
-    var cost = this.calculateCoreUpgradeCost(levels);
-    if (isNaN(cost) || levels < 0) {
-        return false;
-    }
-
-    //Fail if we're already at max
-    if (this.cores >= CONSTANTS.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 + levels > CONSTANTS.HacknetNodeMaxCores) {
-        var diff = Math.max(0, CONSTANTS.HacknetNodeMaxCores - this.cores);
-        return this.purchaseCoreUpgrade(diff);
-    }
-
-    if (Player.money.lt(cost)) {
-        return false;
-    }
-
-    Player.loseMoney(cost);
-    this.cores = Math.round(this.cores + levels); //Just in case of floating point imprecision
-    this.updateMoneyGainRate();
-    return true;
-}
-
-/* Saving and loading HackNets */
-HacknetNode.prototype.toJSON = function() {
-    return Generic_toJSON("HacknetNode", this);
-}
-
-HacknetNode.fromJSON = function(value) {
-    return Generic_fromJSON(HacknetNode, value.data);
-}
-
-Reviver.constructors.HacknetNode = HacknetNode;
-
-function purchaseHacknet() {
-    /* INTERACTIVE TUTORIAL */
-    if (ITutorial.isRunning) {
-        if (ITutorial.currStep === iTutorialSteps.HacknetNodesIntroduction) {
-            iTutorialNextStep();
-        } else {
-            return;
-        }
-    }
-
-    /* END INTERACTIVE TUTORIAL */
-
-    var cost = getCostOfNextHacknetNode();
-    if (isNaN(cost)) {
-        throw new Error("Cost is NaN");
-    }
-
-    if (Player.money.lt(cost)) {
-        //dialogBoxCreate("You cannot afford to purchase a Hacknet Node!");
-        return -1;
-    }
-
-    //Auto generate a name for the node for now...TODO
-    var numOwned = Player.hacknetNodes.length;
-    var name = "hacknet-node-" + numOwned;
-    var node = new HacknetNode(name);
-    node.updateMoneyGainRate();
-
-    Player.loseMoney(cost);
-    Player.hacknetNodes.push(node);
-
-    if (routing.isOn(Page.HacknetNodes)) {
-        displayHacknetNodesContent();
-    }
-    updateTotalHacknetProduction();
-    return numOwned;
-}
-
-//Calculates the total production from all HacknetNodes
-function updateTotalHacknetProduction() {
-    var total = 0;
-    for (var i = 0; i < Player.hacknetNodes.length; ++i) {
-        total += Player.hacknetNodes[i].moneyGainRatePerSecond;
-    }
-    TotalHacknetNodeProduction = total;
-}
-
-function getCostOfNextHacknetNode() {
-    //Cost increases exponentially based on how many you own
-    var numOwned = Player.hacknetNodes.length;
-    var mult = CONSTANTS.HacknetNodePurchaseNextMult;
-    return CONSTANTS.BaseCostForHacknetNode * Math.pow(mult, numOwned) * Player.hacknet_node_purchase_cost_mult;
-}
-
-var hacknetNodePurchaseMultiplier = 1;
-function updateHacknetNodesMultiplierButtons() {
-    var mult1x = document.getElementById("hacknet-nodes-1x-multiplier");
-    var mult5x = document.getElementById("hacknet-nodes-5x-multiplier");
-    var mult10x = document.getElementById("hacknet-nodes-10x-multiplier");
-    var multMax = document.getElementById("hacknet-nodes-max-multiplier");
-    mult1x.setAttribute("class", "a-link-button");
-    mult5x.setAttribute("class", "a-link-button");
-    mult10x.setAttribute("class", "a-link-button");
-    multMax.setAttribute("class", "a-link-button");
-    if (Player.hacknetNodes.length == 0) {
-        mult1x.setAttribute("class", "a-link-button-inactive");
-        mult5x.setAttribute("class", "a-link-button-inactive");
-        mult10x.setAttribute("class", "a-link-button-inactive");
-        multMax.setAttribute("class", "a-link-button-inactive");
-    } else if (hacknetNodePurchaseMultiplier == 1) {
-        mult1x.setAttribute("class", "a-link-button-inactive");
-    } else if (hacknetNodePurchaseMultiplier == 5) {
-        mult5x.setAttribute("class", "a-link-button-inactive");
-    } else if (hacknetNodePurchaseMultiplier == 10) {
-        mult10x.setAttribute("class", "a-link-button-inactive");
-    } else {
-        multMax.setAttribute("class", "a-link-button-inactive");
-    }
-}
-
-//Calculate the maximum number of times the Player can afford to upgrade a Hacknet Node
-function getMaxNumberLevelUpgrades(nodeObj) {
-    if (Player.money.lt(nodeObj.calculateLevelUpgradeCost(1))) {
-        return 0;
-    }
-
-    var min = 1;
-    var max = CONSTANTS.HacknetNodeMaxLevel - 1;
-    var levelsToMax = CONSTANTS.HacknetNodeMaxLevel - nodeObj.level;
-    if (Player.money.gt(nodeObj.calculateLevelUpgradeCost(levelsToMax))) {
-        return levelsToMax;
-    }
-
-    while (min <= max) {
-        var curr = (min + max) / 2 | 0;
-        if (curr != CONSTANTS.HacknetNodeMaxLevel &&
-            Player.money.gt(nodeObj.calculateLevelUpgradeCost(curr)) &&
-            Player.money.lt(nodeObj.calculateLevelUpgradeCost(curr + 1))) {
-            return Math.min(levelsToMax, curr);
-        } else if (Player.money.lt(nodeObj.calculateLevelUpgradeCost(curr))) {
-            max = curr - 1;
-        } else if (Player.money.gt(nodeObj.calculateLevelUpgradeCost(curr))) {
-            min = curr + 1;
-        } else {
-            return Math.min(levelsToMax, curr);
-        }
-    }
-    return 0;
-}
-
-function getMaxNumberRamUpgrades(nodeObj) {
-    if (Player.money.lt(nodeObj.calculateRamUpgradeCost(1))) {
-        return 0;
-    }
-
-    const levelsToMax = Math.round(Math.log2(CONSTANTS.HacknetNodeMaxRam / nodeObj.ram));
-    if (Player.money.gt(nodeObj.calculateRamUpgradeCost(levelsToMax))) {
-        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))) {
-            return i;
-        }
-    }
-    return 0;
-}
-
-function getMaxNumberCoreUpgrades(nodeObj) {
-    if (Player.money.lt(nodeObj.calculateCoreUpgradeCost(1))) {
-        return 0;
-    }
-
-    var min = 1;
-    var max = CONSTANTS.HacknetNodeMaxCores - 1;
-    const levelsToMax = CONSTANTS.HacknetNodeMaxCores - nodeObj.cores;
-    if (Player.money.gt(nodeObj.calculateCoreUpgradeCost(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 != CONSTANTS.HacknetNodeMaxCores &&
-            Player.money.gt(nodeObj.calculateCoreUpgradeCost(curr)) &&
-            Player.money.lt(nodeObj.calculateCoreUpgradeCost(curr + 1))) {
-            return Math.min(levelsToMax, curr);
-        } else if (Player.money.lt(nodeObj.calculateCoreUpgradeCost(curr))) {
-            max = curr - 1;
-        } else if (Player.money.gt(nodeObj.calculateCoreUpgradeCost(curr))) {
-            min = curr + 1;
-        } else {
-            return Math.min(levelsToMax, curr);
-        }
-    }
-    return 0;
-}
-
-//Creates Hacknet Node DOM elements when the page is opened
-function displayHacknetNodesContent() {
-    //Update Hacknet Nodes button
-    var newPurchaseButton = clearEventListeners("hacknet-nodes-purchase-button");
-
-    newPurchaseButton.addEventListener("click", function() {
-        purchaseHacknet();
-        return false;
-    });
-
-    //Handle Purchase multiplier buttons
-    updateHacknetNodesMultiplierButtons();
-
-    //Remove all old hacknet Node DOM elements
-    var hacknetNodesList = document.getElementById("hacknet-nodes-list");
-    while (hacknetNodesList.firstChild) {
-        hacknetNodesList.removeChild(hacknetNodesList.firstChild);
-    }
-
-    //Then re-create them
-    for (var i = 0; i < Player.hacknetNodes.length; ++i) {
-        createHacknetNodeDomElement(Player.hacknetNodes[i]);
-    }
-
-    updateTotalHacknetProduction();
-    updateHacknetNodesContent();
-}
-
-//Update information on all Hacknet Node DOM elements
-function updateHacknetNodesContent() {
-    //Set purchase button to inactive if not enough money, and update its price display
-    var cost = getCostOfNextHacknetNode();
-    var purchaseButton = getElementById("hacknet-nodes-purchase-button");
-    var formattedCost = numeralWrapper.formatMoney(cost);
-
-    updateText("hacknet-nodes-purchase-button", `Purchase Hacknet Node - ${formattedCost}`);
-
-    if (Player.money.lt(cost)) {
-        purchaseButton.setAttribute("class", "a-link-button-inactive");
-    } else {
-        purchaseButton.setAttribute("class", "a-link-button");
-    }
-
-    //Update player's money
-    updateText("hacknet-nodes-player-money", numeralWrapper.formatMoney(Player.money.toNumber()));
-    updateText("hacknet-nodes-total-production", numeralWrapper.formatMoney(TotalHacknetNodeProduction) + " / sec");
-
-    //Update information in each owned hacknet node
-    for (var i = 0; i < Player.hacknetNodes.length; ++i) {
-        updateHacknetNodeDomElement(Player.hacknetNodes[i]);
-    }
-}
-
-//Creates a single Hacknet Node DOM element
-function createHacknetNodeDomElement(nodeObj) {
-    var nodeName = nodeObj.name;
-
-    var nodeLevelContainer = createElement("div", {
-        class: "hacknet-node-level-container row",
-        innerHTML: "<p>Level:</p><span class=\"text upgradable-info\" id=\"hacknet-node-level-" + nodeName + "\"></span>"
-    });
-
-    var nodeRamContainer = createElement("div", {
-        class: "hacknet-node-ram-container row",
-        innerHTML: "<p>RAM:</p><span class=\"text upgradable-info\" id=\"hacknet-node-ram-" + nodeName + "\"></span>"
-    });
-
-    var nodeCoresContainer = createElement("div", {
-        class: "hacknet-node-cores-container row",
-        innerHTML: "<p>Cores:</p><span class=\"text upgradable-info\" id=\"hacknet-node-cores-" + nodeName + "\"><span>"
-    })
-    var containingDiv = createElement("div", {
-        class: "hacknet-node-container",
-        innerHTML: "<div class=\"hacknet-node-name-container row\">" +
-            "<p>Node name:</p>" +
-            "<span class=\"text\" id=\"hacknet-node-name-" + nodeName + "\"></span>" +
-            "</div>" +
-            "<div class=\"hacknet-node-production-container row\">" +
-            "<p>Production:</p>" +
-            "<span class=\"text\" id=\"hacknet-node-total-production-" + nodeName + "\"></span>" +
-            "<span class=\"text\" id=\"hacknet-node-production-rate-" + nodeName + "\"></span>" +
-            "</div>"
-    });
-    containingDiv.appendChild(nodeLevelContainer);
-    containingDiv.appendChild(nodeRamContainer);
-    containingDiv.appendChild(nodeCoresContainer);
-
-    var listItem = createElement("li", {
-        class: "hacknet-node"
-    });
-    listItem.appendChild(containingDiv);
-
-    //Upgrade buttons
-    nodeLevelContainer.appendChild(createElement("a", {
-        id: "hacknet-node-upgrade-level-" + nodeName,
-        class: "a-link-button-inactive",
-        clickListener: function() {
-            let numUpgrades = hacknetNodePurchaseMultiplier;
-            if (hacknetNodePurchaseMultiplier == 0) {
-                numUpgrades = getMaxNumberLevelUpgrades(nodeObj);
-            }
-            nodeObj.purchaseLevelUpgrade(numUpgrades);
-            updateHacknetNodesContent();
-            return false;
-        }
-    }));
-
-    nodeRamContainer.appendChild(createElement("a", {
-        id: "hacknet-node-upgrade-ram-" + nodeName,
-        class: "a-link-button-inactive",
-        clickListener: function() {
-            let numUpgrades = hacknetNodePurchaseMultiplier;
-            if (hacknetNodePurchaseMultiplier == 0) {
-                numUpgrades = getMaxNumberRamUpgrades(nodeObj);
-            }
-            nodeObj.purchaseRamUpgrade(numUpgrades);
-            updateHacknetNodesContent();
-            return false;
-        }
-    }));
-
-    nodeCoresContainer.appendChild(createElement("a", {
-        id: "hacknet-node-upgrade-core-" + nodeName,
-        class: "a-link-button-inactive",
-        clickListener: function() {
-            let numUpgrades = hacknetNodePurchaseMultiplier;
-            if (hacknetNodePurchaseMultiplier == 0) {
-                numUpgrades = getMaxNumberCoreUpgrades(nodeObj);
-            }
-            nodeObj.purchaseCoreUpgrade(numUpgrades);
-            updateHacknetNodesContent();
-            return false;
-        }
-    }));
-
-    document.getElementById("hacknet-nodes-list").appendChild(listItem);
-
-    //Set the text and stuff inside the DOM element
-    updateHacknetNodeDomElement(nodeObj);
-}
-
-//Updates information on a single hacknet node DOM element
-function updateHacknetNodeDomElement(nodeObj) {
-    var nodeName = nodeObj.name;
-
-    updateText("hacknet-node-name-" + nodeName, nodeName);
-    updateText("hacknet-node-total-production-" + nodeName, numeralWrapper.formatMoney(nodeObj.totalMoneyGenerated));
-    updateText("hacknet-node-production-rate-" + nodeName, "(" + numeralWrapper.formatMoney(nodeObj.moneyGainRatePerSecond) + " / sec)");
-    updateText("hacknet-node-level-" + nodeName, nodeObj.level);
-    updateText("hacknet-node-ram-" + nodeName, nodeObj.ram + "GB");
-    updateText("hacknet-node-cores-" + nodeName, nodeObj.cores);
-
-    //Upgrade level
-    var upgradeLevelButton = getElementById("hacknet-node-upgrade-level-" + nodeName);
-
-    if (nodeObj.level >= CONSTANTS.HacknetNodeMaxLevel) {
-        updateText("hacknet-node-upgrade-level-" + nodeName, "MAX LEVEL");
-        upgradeLevelButton.setAttribute("class", "a-link-button-inactive");
-    } else {
-        let multiplier = 0;
-        if (hacknetNodePurchaseMultiplier == 0) {
-            //Max
-            multiplier = getMaxNumberLevelUpgrades(nodeObj);
-        } else {
-            var levelsToMax = CONSTANTS.HacknetNodeMaxLevel - nodeObj.level;
-            multiplier = Math.min(levelsToMax, hacknetNodePurchaseMultiplier);
-        }
-
-        var upgradeLevelCost = nodeObj.calculateLevelUpgradeCost(multiplier);
-        updateText("hacknet-node-upgrade-level-" + nodeName, "Upgrade x" + multiplier + " - " + numeralWrapper.formatMoney(upgradeLevelCost))
-        if (Player.money.lt(upgradeLevelCost)) {
-            upgradeLevelButton.setAttribute("class", "a-link-button-inactive");
-        } else {
-            upgradeLevelButton.setAttribute("class", "a-link-button");
-        }
-    }
-
-    //Upgrade RAM
-    var upgradeRamButton = getElementById("hacknet-node-upgrade-ram-" + nodeName);
-
-    if (nodeObj.ram >= CONSTANTS.HacknetNodeMaxRam) {
-        updateText("hacknet-node-upgrade-ram-" + nodeName, "MAX RAM");
-        upgradeRamButton.setAttribute("class", "a-link-button-inactive");
-    } else {
-        let multiplier = 0;
-        if (hacknetNodePurchaseMultiplier == 0) {
-            multiplier = getMaxNumberRamUpgrades(nodeObj);
-        } else {
-            var levelsToMax = Math.round(Math.log2(CONSTANTS.HacknetNodeMaxRam / nodeObj.ram));
-            multiplier = Math.min(levelsToMax, hacknetNodePurchaseMultiplier);
-        }
-
-        var upgradeRamCost = nodeObj.calculateRamUpgradeCost(multiplier);
-        updateText("hacknet-node-upgrade-ram-" + nodeName, "Upgrade x" + multiplier + " - " + numeralWrapper.formatMoney(upgradeRamCost));
-        if (Player.money.lt(upgradeRamCost)) {
-            upgradeRamButton.setAttribute("class", "a-link-button-inactive");
-        } else {
-            upgradeRamButton.setAttribute("class", "a-link-button");
-        }
-    }
-
-    //Upgrade Cores
-    var upgradeCoreButton = getElementById("hacknet-node-upgrade-core-" + nodeName);
-
-    if (nodeObj.cores >= CONSTANTS.HacknetNodeMaxCores) {
-        updateText("hacknet-node-upgrade-core-" + nodeName, "MAX CORES");
-        upgradeCoreButton.setAttribute("class", "a-link-button-inactive");
-    } else {
-        let multiplier = 0;
-        if (hacknetNodePurchaseMultiplier == 0) {
-            multiplier = getMaxNumberCoreUpgrades(nodeObj);
-        } else {
-            var levelsToMax = CONSTANTS.HacknetNodeMaxCores - nodeObj.cores;
-            multiplier = Math.min(levelsToMax, hacknetNodePurchaseMultiplier);
-        }
-        var upgradeCoreCost = nodeObj.calculateCoreUpgradeCost(multiplier);
-        updateText("hacknet-node-upgrade-core-" + nodeName, "Upgrade x" + multiplier + " - " + numeralWrapper.formatMoney(upgradeCoreCost));
-        if (Player.money.lt(upgradeCoreCost)) {
-            upgradeCoreButton.setAttribute("class", "a-link-button-inactive");
-        } else {
-            upgradeCoreButton.setAttribute("class", "a-link-button");
-        }
-    }
-}
-
-
-function processAllHacknetNodeEarnings(numCycles) {
-    var total = 0;
-    for (var i = 0; i < Player.hacknetNodes.length; ++i) {
-        total += processSingleHacknetNodeEarnings(numCycles, Player.hacknetNodes[i]);
-    }
-
-    return total;
-}
-
-function processSingleHacknetNodeEarnings(numCycles, nodeObj) {
-    var cyclesPerSecond = 1000 / Engine._idleSpeed;
-    var earningPerCycle = nodeObj.moneyGainRatePerSecond / cyclesPerSecond;
-    if (isNaN(earningPerCycle)) {
-        console.error("Hacknet Node '" + nodeObj.name + "' Calculated earnings is NaN");
-        earningPerCycle = 0;
-    }
-
-    var totalEarnings = numCycles * earningPerCycle;
-    nodeObj.totalMoneyGenerated += totalEarnings;
-    nodeObj.onlineTimeSeconds += (numCycles * (Engine._idleSpeed / 1000));
-    Player.gainMoney(totalEarnings);
-    Player.recordMoneySource(totalEarnings, "hacknetnode");
-    return totalEarnings;
-}
-
-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 {
-    HacknetNode,
-    displayHacknetNodesContent,
-    getCostOfNextHacknetNode,
-    getHacknetNode,
-    getMaxNumberLevelUpgrades,
-    hacknetNodesInit,
-    processAllHacknetNodeEarnings,
-    purchaseHacknet,
-    updateHacknetNodesContent,
-    updateHacknetNodesMultiplierButtons,
-    updateTotalHacknetProduction
-};

src/NetscriptEnvironment.js

@@ -1,4 +1,3 @@
-import {HacknetNode}                    from "./HacknetNode";
 import {NetscriptFunctions}             from "./NetscriptFunctions";
 import {NetscriptPort}                  from "./NetscriptPort";
 
@@ -56,37 +55,6 @@ Environment.prototype = {
         }
     },
 
-    setArrayElement: function(name, idx, value) {
-        if (!(idx instanceof Array)) {
-            throw new Error("idx parameter is not an Array");
-        }
-        var scope = this.lookup(name);
-        if (!scope && this.parent) {
-            throw new Error("Undefined variable " + name);
-        }
-        var arr = (scope || this).vars[name];
-        if (!(arr.constructor === Array || arr instanceof Array)) {
-            throw new Error("Variable is not an array: " + name);
-        }
-        var res = arr;
-        for (var iterator = 0; iterator < idx.length-1; ++iterator) {
-            var i = idx[iterator];
-            if (!(res instanceof Array) || i >= res.length) {
-                throw new Error("Out-of-bounds array access");
-            }
-            res = res[i];
-        }
-
-        //Cant assign to ports or HacknetNodes
-        if (res[idx[idx.length-1]] instanceof HacknetNode) {
-            throw new Error("Cannot assign a Hacknet Node handle to a new value");
-        }
-        if (res[idx[idx.length-1]] instanceof NetscriptPort) {
-            throw new Error("Cannot assign a Netscript Port handle to a new value");
-        }
-        return res[idx[idx.length-1]] = value;
-    },
-
 	//Creates (or overwrites) a variable in the current scope
     def: function(name, value) {
         return this.vars[name] = value;

src/NetscriptEvaluator.js

@@ -196,7 +196,7 @@ export function runScriptFromScript(server, scriptname, args, workerScript, thre
                 }
                 var runningScriptObj = new RunningScript(script, args);
                 runningScriptObj.threads = threads;
-                server.runningScripts.push(runningScriptObj);    //Push onto runningScripts
+                server.runScript(runningScriptObj, Player); // Push onto runningScripts
                 addWorkerScript(runningScriptObj, server);
                 return Promise.resolve(true);
             }

src/NetscriptFunctions.js

@@ -30,7 +30,7 @@ import { joinFaction,
          purchaseAugmentation }                     from "./Faction/FactionHelpers";
 import { FactionWorkType }                          from "./Faction/FactionWorkTypeEnum";
 import { getCostOfNextHacknetNode,
-         purchaseHacknet }                          from "./HacknetNode";
+         purchaseHacknet }                          from "./Hacknet/HacknetNode";
 import {Locations}                                  from "./Locations";
 import { Message }                                  from "./Message/Message";
 import { Messages }                                 from "./Message/MessageHelpers";
@@ -278,27 +278,27 @@ function NetscriptFunctions(workerScript) {
             },
             upgradeLevel : function(i, n) {
                 var node = getHacknetNode(i);
-                return node.purchaseLevelUpgrade(n);
+                return node.purchaseLevelUpgrade(n, Player);
             },
             upgradeRam : function(i, n) {
                 var node = getHacknetNode(i);
-                return node.purchaseRamUpgrade(n);
+                return node.purchaseRamUpgrade(n, Player);
             },
             upgradeCore : function(i, n) {
                 var node = getHacknetNode(i);
-                return node.purchaseCoreUpgrade(n);
+                return node.purchaseCoreUpgrade(n, Player);
             },
             getLevelUpgradeCost : function(i, n) {
                 var node = getHacknetNode(i);
-                return node.calculateLevelUpgradeCost(n);
+                return node.calculateLevelUpgradeCost(n, Player);
             },
             getRamUpgradeCost : function(i, n) {
                 var node = getHacknetNode(i);
-                return node.calculateRamUpgradeCost(n);
+                return node.calculateRamUpgradeCost(n, Player);
             },
             getCoreUpgradeCost : function(i, n) {
                 var node = getHacknetNode(i);
-                return node.calculateCoreUpgradeCost(n);
+                return node.calculateCoreUpgradeCost(n, Player);
             }
         },
         sprintf : sprintf,

src/PersonObjects/IPlayer.ts

@@ -9,6 +9,8 @@ import { Sleeve } from "./Sleeve/Sleeve";
 import { IMap } from "../types";
 
 import { IPlayerOwnedAugmentation } from "../Augmentation/PlayerOwnedAugmentation";
+import { HacknetNode } from "../Hacknet/HacknetNode";
+import { HacknetServer } from "../Hacknet/HacknetServer";
 import { IPlayerOwnedSourceFile } from "../SourceFile/PlayerOwnedSourceFile";
 import { MoneySourceTracker } from "../utils/MoneySourceTracker";
 
@@ -22,7 +24,7 @@ export interface IPlayer {
     corporation: any;
     currentServer: string;
     factions: string[];
-    hacknetNodes: any[];
+    hacknetNodes: (HacknetNode | HacknetServer)[];
     hasWseAccount: boolean;
     jobs: IMap<string>;
     karma: number;

src/Player.js

@@ -21,6 +21,7 @@ import { Faction }                              from "./Faction/Faction";
 import { Factions }                             from "./Faction/Factions";
 import { displayFactionContent }                from "./Faction/FactionHelpers";
 import {Gang, resetGangs}                       from "./Gang";
+import { HashManager }                          from "./Hacknet/HashManager";
 import {Locations}                              from "./Locations";
 import {hasBn11SF, hasWallStreetSF,hasAISF}     from "./NetscriptFunctions";
 import { Sleeve }                               from "./PersonObjects/Sleeve/Sleeve";
@@ -111,10 +112,13 @@ function PlayerObject() {
     // Company at which player is CURRENTLY working (only valid when the player is actively working)
     this.companyName = "";      // Name of Company. Must match a key value in Companies map
 
-    //Servers
+    // Servers
     this.currentServer          = ""; //IP address of Server currently being accessed through terminal
     this.purchasedServers       = []; //IP Addresses of purchased servers
+
+    // Hacknet Nodes/Servers
     this.hacknetNodes           = [];
+    this.hashManager            = new HashManager();
 
     //Factions
     this.factions = [];             //Names of all factions player has joined
@@ -1391,45 +1395,46 @@ PlayerObject.prototype.startClass = function(costMult, expMult, className) {
     //Find cost and exp gain per game cycle
     var cost = 0;
     var hackExp = 0, strExp = 0, defExp = 0, dexExp = 0, agiExp = 0, chaExp = 0;
+    const hashManager = this.hashManager;
     switch (className) {
         case CONSTANTS.ClassStudyComputerScience:
-            hackExp = baseStudyComputerScienceExp * expMult / gameCPS;
+            hackExp = baseStudyComputerScienceExp * expMult / gameCPS * hashManager.getStudyMult();
             break;
         case CONSTANTS.ClassDataStructures:
             cost = CONSTANTS.ClassDataStructuresBaseCost * costMult / gameCPS;
-            hackExp = baseDataStructuresExp * expMult / gameCPS;
+            hackExp = baseDataStructuresExp * expMult / gameCPS * hashManager.getStudyMult();
             break;
         case CONSTANTS.ClassNetworks:
             cost = CONSTANTS.ClassNetworksBaseCost * costMult / gameCPS;
-            hackExp = baseNetworksExp * expMult / gameCPS;
+            hackExp = baseNetworksExp * expMult / gameCPS  * hashManager.getStudyMult();
             break;
         case CONSTANTS.ClassAlgorithms:
             cost = CONSTANTS.ClassAlgorithmsBaseCost * costMult / gameCPS;
-            hackExp = baseAlgorithmsExp * expMult / gameCPS;
+            hackExp = baseAlgorithmsExp * expMult / gameCPS * hashManager.getStudyMult();
             break;
         case CONSTANTS.ClassManagement:
             cost = CONSTANTS.ClassManagementBaseCost * costMult / gameCPS;
-            chaExp = baseManagementExp * expMult / gameCPS;
+            chaExp = baseManagementExp * expMult / gameCPS * hashManager.getStudyMult();
             break;
         case CONSTANTS.ClassLeadership:
             cost = CONSTANTS.ClassLeadershipBaseCost * costMult / gameCPS;
-            chaExp = baseLeadershipExp * expMult / gameCPS;
+            chaExp = baseLeadershipExp * expMult / gameCPS * hashManager.getStudyMult();
             break;
         case CONSTANTS.ClassGymStrength:
             cost = CONSTANTS.ClassGymBaseCost * costMult / gameCPS;
-            strExp = baseGymExp * expMult / gameCPS;
+            strExp = baseGymExp * expMult / gameCPS * hashManager.getTrainingMult();
             break;
         case CONSTANTS.ClassGymDefense:
             cost = CONSTANTS.ClassGymBaseCost * costMult / gameCPS;
-            defExp = baseGymExp * expMult / gameCPS;
+            defExp = baseGymExp * expMult / gameCPS * hashManager.getTrainingMult();
             break;
         case CONSTANTS.ClassGymDexterity:
             cost = CONSTANTS.ClassGymBaseCost * costMult / gameCPS;
-            dexExp = baseGymExp * expMult / gameCPS;
+            dexExp = baseGymExp * expMult / gameCPS * hashManager.getTrainingMult();
             break;
         case CONSTANTS.ClassGymAgility:
             cost = CONSTANTS.ClassGymBaseCost * costMult / gameCPS;
-            agiExp = baseGymExp * expMult / gameCPS;
+            agiExp = baseGymExp * expMult / gameCPS * hashManager.getTrainingMult();
             break;
         default:
             throw new Error("ERR: Invalid/unrecognized class name");

src/RedPill.js

@@ -213,9 +213,7 @@ function loadBitVerse(destroyedBitNodeNum, flume=false) {
             var elemId = "bitnode-" + i.toString();
             var elem = clearEventListeners(elemId);
             if (elem == null) {return;}
-            if (i === 1 || i === 2 || i === 3 || i === 4 || i === 5 ||
+            if (i >= 1 && i <= 12) {
-                i === 6 || i === 7 || i === 8 || i === 10 || i === 11 ||
-                i === 12) {
                 elem.addEventListener("click", function() {
                     var bitNodeKey = "BitNode" + i;
                     var bitNode = BitNodes[bitNodeKey];

src/SaveObject.js

@@ -10,7 +10,8 @@ import { processPassiveFactionRepGain }         from "./Faction/FactionHelpers";
 import { loadFconf }                            from "./Fconf/Fconf";
 import { FconfSettings }                        from "./Fconf/FconfSettings";
 import {loadAllGangs, AllGangs}                 from "./Gang";
-import {processAllHacknetNodeEarnings}          from "./HacknetNode";
+import { hasHacknetServers,
+         processHacknetEarnings }               from "./Hacknet/HacknetHelpers";
 import { loadMessages, initMessages, Messages } from "./Message/MessageHelpers";
 import {Player, loadPlayer}                     from "./Player";
 import { loadAllRunningScripts }                from "./Script/ScriptHelpers";
@@ -490,7 +491,10 @@ function loadImportedGame(saveObj, saveString) {
     }
 
     //Hacknet Nodes offline progress
-    var offlineProductionFromHacknetNodes = processAllHacknetNodeEarnings(numCyclesOffline);
+    var offlineProductionFromHacknetNodes = processHacknetEarnings(numCyclesOffline);
+    const hacknetProdInfo = hasHacknetServers() ?
+                            `${numeralWrapper.format(offlineProductionFromHacknetNodes, "0.000a")} hashes` :
+                            `${numeralWrapper.formatMoney(offlineProductionFromHacknetNodes)}`;
 
     //Passive faction rep gain offline
     processPassiveFactionRepGain(numCyclesOffline);
@@ -515,8 +519,8 @@ function loadImportedGame(saveObj, saveString) {
     const timeOfflineString = convertTimeMsToTimeElapsedString(time);
     dialogBoxCreate(`Offline for ${timeOfflineString}. While you were offline, your scripts ` +
                     "generated <span class='money-gold'>" +
-                    numeralWrapper.formatMoney(offlineProductionFromScripts) + "</span> and your Hacknet Nodes generated <span class='money-gold'>" +
+                    numeralWrapper.formatMoney(offlineProductionFromScripts) + "</span> " +
-                    numeralWrapper.formatMoney(offlineProductionFromHacknetNodes) + "</span>");
+                    "and your Hacknet Nodes generated <span class='money-gold'>" + hacknetProdInfo + "</span>");
     return true;
 }
 

src/Server/BaseServer.ts

@@ -0,0 +1,206 @@
+/**
+ * Abstract Base Class for any Server object
+ */
+import { CodingContract } from "../CodingContracts";
+import { Message } from "../Message/Message";
+import { RunningScript } from "../Script/RunningScript";
+import { Script } from "../Script/Script";
+import { TextFile } from "../TextFile";
+
+import { isScriptFilename } from "../Script/ScriptHelpersTS";
+
+import { createRandomIp } from "../../utils/IPAddress";
+
+interface IConstructorParams {
+    adminRights?: boolean;
+    hostname: string;
+    ip?: string;
+    isConnectedTo?: boolean;
+    maxRam?: number;
+    organizationName?: string;
+}
+
+export abstract class BaseServer {
+    // Coding Contract files on this server
+    contracts: CodingContract[] = [];
+
+    // How many CPU cores this server has. Maximum of 8.
+    // Currently, this only affects hacking missions
+    cpuCores: number = 1;
+
+    // Flag indicating whether the FTP port is open
+    ftpPortOpen: boolean = false;
+
+    // Flag indicating whether player has admin/root access to this server
+    hasAdminRights: boolean = false;
+
+    // Hostname. Must be unique
+    hostname: string = "";
+
+    // Flag indicating whether HTTP Port is open
+    httpPortOpen: boolean = false;
+
+    // IP Address. Must be unique
+    ip: string = "";
+
+    // Flag indicating whether player is curently connected to this server
+    isConnectedTo: boolean = false;
+
+    // RAM (GB) available on this server
+    maxRam: number = 0;
+
+    // Message files AND Literature files on this Server
+    // For Literature files, this array contains only the filename (string)
+    // For Messages, it contains the actual Message object
+    // TODO Separate literature files into its own property
+    messages: (Message | string)[] = [];
+
+    // Name of company/faction/etc. that this server belongs to.
+    // Optional, not applicable to all Servers
+    organizationName: string = "";
+
+    // Programs on this servers. Contains only the names of the programs
+    programs: string[] = [];
+
+    // RAM (GB) used. i.e. unavailable RAM
+    ramUsed: number = 0;
+
+    // RunningScript files on this server
+    runningScripts: RunningScript[] = [];
+
+    // Script files on this Server
+    scripts: Script[] = [];
+
+    // Contains the IP Addresses of all servers that are immediately
+    // reachable from this one
+    serversOnNetwork: string[] = [];
+
+    // Flag indicating whether SMTP Port is open
+    smtpPortOpen: boolean = false;
+
+    // Flag indicating whether SQL Port is open
+    sqlPortOpen: boolean = false;
+
+    // Flag indicating whether the SSH Port is open
+    sshPortOpen: boolean = false;
+
+    // Text files on this server
+    textFiles: TextFile[] = [];
+
+    constructor(params: IConstructorParams={ hostname: "", ip: createRandomIp() }) {
+        this.ip = params.ip ? params.ip : createRandomIp();
+
+        this.hostname           =     params.hostname;
+        this.organizationName   =     params.organizationName != null ? params.organizationName   : "";
+        this.isConnectedTo      =     params.isConnectedTo  != null   ? params.isConnectedTo      : false;
+
+        //Access information
+        this.hasAdminRights     =    params.adminRights != null       ? params.adminRights        : false;
+    }
+
+    addContract(contract: CodingContract) {
+        this.contracts.push(contract);
+    }
+
+    getContract(contractName: string): CodingContract | null {
+        for (const contract of this.contracts) {
+            if (contract.fn === contractName) {
+                return contract;
+            }
+        }
+        return null;
+    }
+
+    // Given the name of the script, returns the corresponding
+    // script object on the server (if it exists)
+    getScript(scriptName: string): Script | null {
+        for (let i = 0; i < this.scripts.length; i++) {
+            if (this.scripts[i].filename === scriptName) {
+                return this.scripts[i];
+            }
+        }
+
+        return null;
+    }
+
+    removeContract(contract: CodingContract) {
+        if (contract instanceof CodingContract) {
+            this.contracts = this.contracts.filter((c) => {
+                return c.fn !== contract.fn;
+            });
+        } else {
+            this.contracts = this.contracts.filter((c) => {
+                return c.fn !== contract;
+            });
+        }
+    }
+
+    /**
+     * Called when a script is run on this server.
+     * All this function does is add a RunningScript object to the
+     * `runningScripts` array. It does NOT check whether the script actually can
+     * be run.
+     */
+    runScript(script: RunningScript): void {
+        this.runningScripts.push(script);
+    }
+
+    setMaxRam(ram: number): void {
+        this.maxRam = ram;
+    }
+
+    /**
+     * Write to a script file
+     * Overwrites existing files. Creates new files if the script does not eixst
+     */
+    writeToScriptFile(fn: string, code: string) {
+        var ret = {success: false, overwritten: false};
+        if (!isScriptFilename(fn)) { return ret; }
+
+        //Check if the script already exists, and overwrite it if it does
+        for (let i = 0; i < this.scripts.length; ++i) {
+            if (fn === this.scripts[i].filename) {
+                let script = this.scripts[i];
+                script.code = code;
+                script.updateRamUsage();
+                script.module = "";
+                ret.overwritten = true;
+                ret.success = true;
+                return ret;
+            }
+        }
+
+        //Otherwise, create a new script
+        const newScript = new Script();
+        newScript.filename = fn;
+        newScript.code = code;
+        newScript.updateRamUsage();
+        newScript.server = this.ip;
+        this.scripts.push(newScript);
+        ret.success = true;
+        return ret;
+    }
+
+    // Write to a text file
+    // Overwrites existing files. Creates new files if the text file does not exist
+    writeToTextFile(fn: string, txt: string) {
+        var ret = { success: false, overwritten: false };
+        if (!fn.endsWith("txt")) { return ret; }
+
+        //Check if the text file already exists, and overwrite if it does
+        for (let i = 0; i < this.textFiles.length; ++i) {
+            if (this.textFiles[i].fn === fn) {
+                ret.overwritten = true;
+                this.textFiles[i].text = txt;
+                ret.success = true;
+                return ret;
+            }
+        }
+
+        //Otherwise create a new text file
+        var newFile = new TextFile(fn, txt);
+        this.textFiles.push(newFile);
+        ret.success = true;
+        return ret;
+    }
+}

src/Server/Server.ts

@@ -1,16 +1,12 @@
-// Class representing a single generic Server
+// Class representing a single hackable Server
+import { BaseServer } from "./BaseServer";
 
 // TODO This import is a circular import. Try to fix it in the future
 import { GetServerByHostname } from "./ServerHelpers";
 
 import { BitNodeMultipliers } from "../BitNode/BitNodeMultipliers";
-import { CodingContract } from "../CodingContracts";
-import { Message } from "../Message/Message";
-import { RunningScript } from "../Script/RunningScript";
-import { Script } from "../Script/Script";
-import { isScriptFilename } from "../Script/ScriptHelpersTS";
-import { TextFile } from "../TextFile";
 
+import { createRandomString } from "../utils/createRandomString";
 import { createRandomIp } from "../../utils/IPAddress";
 import { Generic_fromJSON,
          Generic_toJSON,
@@ -31,7 +27,7 @@ interface IConstructorParams {
     serverGrowth?: number;
 }
 
-export class Server {
+export class Server extends BaseServer {
     // Initializes a Server Object from a JSON save state
     static fromJSON(value: any): Server {
         return Generic_fromJSON(Server, value.data);
@@ -41,47 +37,13 @@ export class Server {
     // (i.e. security level when the server was created)
     baseDifficulty: number = 1;
 
-    // Coding Contract files on this server
-    contracts: CodingContract[] = [];
-
-    // How many CPU cores this server has. Maximum of 8.
-    // Currently, this only affects hacking missions
-    cpuCores: number = 1;
-
-    // Flag indicating whether the FTP port is open
-    ftpPortOpen: boolean = false;
-
     // Server Security Level
     hackDifficulty: number = 1;
 
-    // Flag indicating whether player has admin/root access to this server
-    hasAdminRights: boolean = false;
-
-    // Hostname. Must be unique
-    hostname: string = "";
-
-    // Flag indicating whether HTTP Port is open
-    httpPortOpen: boolean = false;
-
-    // IP Address. Must be unique
-    ip: string = "";
-
-    // Flag indicating whether player is curently connected to this server
-    isConnectedTo: boolean = false;
-
     // Flag indicating whether this server has been manually hacked (ie.
     // hacked through Terminal) by the player
     manuallyHacked: boolean = false;
 
-    // RAM (GB) available on this server
-    maxRam: number = 0;
-
-    // Message files AND Literature files on this Server
-    // For Literature files, this array contains only the filename (string)
-    // For Messages, it contains the actual Message object
-    // TODO Separate literature files into its own property
-    messages: (Message | string)[] = [];
-
     // Minimum server security level that this server can be weakened to
     minDifficulty: number = 1;
 
@@ -97,67 +59,35 @@ export class Server {
     // How many ports are currently opened on the server
     openPortCount: number = 0;
 
-    // Name of company/faction/etc. that this server belongs to.
-    // Optional, not applicable to all Servers
-    organizationName: string = "";
-
-    // Programs on this servers. Contains only the names of the programs
-    programs: string[] = [];
-
     // Flag indicating wehther this is a purchased server
     purchasedByPlayer: boolean = false;
 
-    // RAM (GB) used. i.e. unavailable RAM
-    ramUsed: number = 0;
-
     // Hacking level required to hack this server
     requiredHackingSkill: number = 1;
 
-    // RunningScript files on this server
-    runningScripts: RunningScript[] = [];
-
-    // Script files on this Server
-    scripts: Script[] = [];
-
     // Parameter that affects how effectively this server's money can
     // be increased using the grow() Netscript function
     serverGrowth: number = 1;
 
-    // Contains the IP Addresses of all servers that are immediately
-    // reachable from this one
-    serversOnNetwork: string[] = [];
-
-    // Flag indicating whether SMTP Port is open
-    smtpPortOpen: boolean = false;
-
-    // Flag indicating whether SQL Port is open
-    sqlPortOpen: boolean = false;
-
-    // Flag indicating whether the SSH Port is open
-    sshPortOpen: boolean = false;
-
-    // Text files on this server
-    textFiles: TextFile[] = [];
-
     constructor(params: IConstructorParams={hostname: "", ip: createRandomIp() }) {
-        /* Properties */
+        super(params);
-        //Connection information
-        this.ip = params.ip ? params.ip : createRandomIp();
 
-        var hostname = params.hostname;
+        // "hacknet-node-X" hostnames are reserved for Hacknet Servers
-        var i = 0;
+        if (this.hostname.startsWith("hacknet-node-")) {
-        var suffix = "";
+            this.hostname = createRandomString(10);
-        while (GetServerByHostname(hostname+suffix) != null) {
+        }
-            //Server already exists
+
-            suffix = "-" + i;
+        // Validate hostname by ensuring there are no repeats
-            ++i;
+        if (GetServerByHostname(this.hostname) != null) {
+            // Use a for loop to ensure that we don't get suck in an infinite loop somehow
+            let hostname: string = this.hostname;
+            for (let i = 0; i < 200; ++i) {
+                hostname = `${this.hostname}-${i}`;
+                if (GetServerByHostname(hostname) == null) { break; }
+            }
+            this.hostname = hostname;
         }
-        this.hostname           =     hostname + suffix;
-        this.organizationName   =     params.organizationName != null ? params.organizationName   : "";
-        this.isConnectedTo      =     params.isConnectedTo  != null   ? params.isConnectedTo      : false;
 
-        //Access information
-        this.hasAdminRights     =    params.adminRights != null       ? params.adminRights        : false;
         this.purchasedByPlayer  =    params.purchasedByPlayer != null ? params.purchasedByPlayer  : false;
 
         //RAM, CPU speed and Scripts
@@ -178,23 +108,9 @@ export class Server {
         this.numOpenPortsRequired = params.numOpenPortsRequired != null ? params.numOpenPortsRequired : 5;
     };
 
-    setMaxRam(ram: number): void {
+    /**
-        this.maxRam = ram;
+     * Ensures that the server's difficulty (server security) doesn't get too high
-    }
+     */
-
-    // Given the name of the script, returns the corresponding
-    // script object on the server (if it exists)
-    getScript(scriptName: string): Script | null {
-        for (let i = 0; i < this.scripts.length; i++) {
-            if (this.scripts[i].filename === scriptName) {
-                return this.scripts[i];
-            }
-        }
-
-        return null;
-    }
-
-    // Ensures that the server's difficulty (server security) doesn't get too high
     capDifficulty(): void {
         if (this.hackDifficulty < this.minDifficulty) {this.hackDifficulty = this.minDifficulty;}
         if (this.hackDifficulty < 1) {this.hackDifficulty = 1;}
@@ -204,97 +120,54 @@ export class Server {
         if (this.hackDifficulty > 1000000) {this.hackDifficulty = 1000000;}
     }
 
-    // Strengthens a server's security level (difficulty) by the specified amount
+    /**
+     * Change this server's minimum security
+     * @param n - Value by which to increase/decrease the server's minimum security
+     * @param perc - Whether it should be changed by a percentage, or a flat value
+     */
+    changeMinimumSecurity(n: number, perc: boolean=false): void {
+        if (perc) {
+            this.minDifficulty *= n;
+        } else {
+            this.minDifficulty += n;
+        }
+
+        // Server security cannot go below 1
+        this.minDifficulty = Math.max(1, this.minDifficulty);
+    }
+
+    /**
+     * Strengthens a server's security level (difficulty) by the specified amount
+     */
     fortify(amt: number): void {
         this.hackDifficulty += amt;
         this.capDifficulty();
     }
 
-    // Lowers the server's security level (difficulty) by the specified amount)
+    /**
+     * Change this server's maximum money
+     * @param n - Value by which to change the server's maximum money
+     * @param perc - Whether it should be changed by a percentage, or a flat value
+     */
+    changeMaximumMoney(n: number, perc: boolean=false): void {
+        if (perc) {
+            this.moneyMax *= n;
+        } else {
+            this.moneyMax += n;
+        }
+    }
+
+    /**
+     * Lowers the server's security level (difficulty) by the specified amount)
+     */
     weaken(amt: number): void {
         this.hackDifficulty -= (amt * BitNodeMultipliers.ServerWeakenRate);
         this.capDifficulty();
     }
 
-    // Write to a script file
+    /**
-    // Overwrites existing files. Creates new files if the script does not eixst
+     * Serialize the current object to a JSON save state
-    writeToScriptFile(fn: string, code: string) {
+     */
-        var ret = {success: false, overwritten: false};
-        if (!isScriptFilename(fn)) { return ret; }
-
-        //Check if the script already exists, and overwrite it if it does
-        for (let i = 0; i < this.scripts.length; ++i) {
-            if (fn === this.scripts[i].filename) {
-                let script = this.scripts[i];
-                script.code = code;
-                script.updateRamUsage();
-                script.module = "";
-                ret.overwritten = true;
-                ret.success = true;
-                return ret;
-            }
-        }
-
-        //Otherwise, create a new script
-        const newScript = new Script();
-        newScript.filename = fn;
-        newScript.code = code;
-        newScript.updateRamUsage();
-        newScript.server = this.ip;
-        this.scripts.push(newScript);
-        ret.success = true;
-        return ret;
-    }
-
-    // Write to a text file
-    // Overwrites existing files. Creates new files if the text file does not exist
-    writeToTextFile(fn: string, txt: string) {
-        var ret = { success: false, overwritten: false };
-        if (!fn.endsWith("txt")) { return ret; }
-
-        //Check if the text file already exists, and overwrite if it does
-        for (let i = 0; i < this.textFiles.length; ++i) {
-            if (this.textFiles[i].fn === fn) {
-                ret.overwritten = true;
-                this.textFiles[i].text = txt;
-                ret.success = true;
-                return ret;
-            }
-        }
-
-        //Otherwise create a new text file
-        var newFile = new TextFile(fn, txt);
-        this.textFiles.push(newFile);
-        ret.success = true;
-        return ret;
-    }
-
-    addContract(contract: CodingContract) {
-        this.contracts.push(contract);
-    }
-
-    removeContract(contract: CodingContract) {
-        if (contract instanceof CodingContract) {
-            this.contracts = this.contracts.filter((c) => {
-                return c.fn !== contract.fn;
-            });
-        } else {
-            this.contracts = this.contracts.filter((c) => {
-                return c.fn !== contract;
-            });
-        }
-    }
-
-    getContract(contractName: string) {
-        for (const contract of this.contracts) {
-            if (contract.fn === contractName) {
-                return contract;
-            }
-        }
-        return null;
-    }
-
-    // Serialize the current object to a JSON save state
     toJSON(): any {
         return Generic_toJSON("Server", this);
     }

src/Terminal.js

@@ -19,6 +19,7 @@ import {calculateHackingChance,
         calculateHackingTime,
         calculateGrowTime,
         calculateWeakenTime}                from "./Hacking";
+import { HacknetServer }                    from "./Hacknet/HacknetServer";
 import {TerminalHelpText, HelpTexts}        from "./HelpText";
 import {iTutorialNextStep, iTutorialSteps,
         ITutorial}                          from "./InteractiveTutorial";
@@ -760,18 +761,19 @@ let Terminal = {
     finishAnalyze: function(cancelled = false) {
 		if (cancelled == false) {
             let currServ = Player.getCurrentServer();
+            const isHacknet = currServ instanceof HacknetServer;
 			post(currServ.hostname + ": ");
             post("Organization name: " + currServ.organizationName);
             var rootAccess = "";
             if (currServ.hasAdminRights) {rootAccess = "YES";}
             else {rootAccess = "NO";}
             post("Root Access: " + rootAccess);
-			post("Required hacking skill: " + currServ.requiredHackingSkill);
+			if (!isHacknet) { post("Required hacking skill: " + currServ.requiredHackingSkill); }
 			post("Server security level: " + numeralWrapper.format(currServ.hackDifficulty, '0.000a'));
 			post("Chance to hack: " + numeralWrapper.format(calculateHackingChance(currServ), '0.00%'));
 			post("Time to hack: " + numeralWrapper.format(calculateHackingTime(currServ), '0.000') + " seconds");
 			post("Total money available on server: " + numeralWrapper.format(currServ.moneyAvailable, '$0,0.00'));
-			post("Required number of open ports for NUKE: " + currServ.numOpenPortsRequired);
+			if (!isHacknet) { post("Required number of open ports for NUKE: " + currServ.numOpenPortsRequired); }
 
             if (currServ.sshPortOpen) {
 				post("SSH port: Open")
@@ -2240,7 +2242,7 @@ let Terminal = {
                     post("May take a few seconds to start up the process...");
                     var runningScriptObj = new RunningScript(script, args);
                     runningScriptObj.threads = numThreads;
-					server.runningScripts.push(runningScriptObj);
+					server.runScript(runningScriptObj, Player);
 
 					addWorkerScript(runningScriptObj, server);
 					return;

src/engine.jsx

@@ -30,8 +30,10 @@ import { FconfSettings }                                from "./Fconf/FconfSetti
 import {displayLocationContent,
         initLocationButtons}                            from "./Location";
 import {Locations}                                      from "./Locations";
-import {displayHacknetNodesContent, processAllHacknetNodeEarnings,
+import { hasHacknetServers,
-        updateHacknetNodesContent}                      from "./HacknetNode";
+         renderHacknetNodesUI,
+         clearHacknetNodesUI,
+         processHacknetEarnings }                       from "./Hacknet/HacknetHelpers";
 import {iTutorialStart}                                 from "./InteractiveTutorial";
 import {initLiterature}                                 from "./Literature";
 import { checkForMessagesToSend, initMessages }         from "./Message/MessageHelpers";
@@ -109,6 +111,7 @@ import "../css/mainmenu.scss";
 import "../css/characteroverview.scss";
 import "../css/terminal.scss";
 import "../css/scripteditor.scss";
+import "../css/hacknetnodes.scss";
 import "../css/menupages.scss";
 import "../css/redpill.scss";
 import "../css/stockmarket.scss";
@@ -294,8 +297,8 @@ const Engine = {
     loadHacknetNodesContent: function() {
         Engine.hideAllContent();
         Engine.Display.hacknetNodesContent.style.display = "block";
-        displayHacknetNodesContent();
         routing.navigateTo(Page.HacknetNodes);
+        renderHacknetNodesUI();
         MainMenuLinks.HacknetNodes.classList.add("active");
     },
 
@@ -506,7 +509,7 @@ const Engine = {
         Engine.Display.characterContent.style.display = "none";
         Engine.Display.scriptEditorContent.style.display = "none";
         Engine.Display.activeScriptsContent.style.display = "none";
-        Engine.Display.hacknetNodesContent.style.display = "none";
+        clearHacknetNodesUI();
         Engine.Display.worldContent.style.display = "none";
         Engine.Display.createProgramContent.style.display = "none";
         Engine.Display.factionsContent.style.display = "none";
@@ -870,7 +873,7 @@ const Engine = {
         updateOnlineScriptTimes(numCycles);
 
         //Hacknet Nodes
-        processAllHacknetNodeEarnings(numCycles);
+        processHacknetEarnings(numCycles);
     },
 
     //Counters for the main event loop. Represent the number of game cycles are required
@@ -932,7 +935,7 @@ const Engine = {
         if (Engine.Counters.updateDisplays <= 0) {
             Engine.displayCharacterOverviewInfo();
             if (routing.isOn(Page.HacknetNodes)) {
-                updateHacknetNodesContent();
+                renderHacknetNodesUI();
             } else if (routing.isOn(Page.CreateProgram)) {
                 displayCreateProgramContent();
             } else if (routing.isOn(Page.Sleeves)) {
@@ -1183,7 +1186,10 @@ const Engine = {
             }
 
             //Hacknet Nodes offline progress
-            var offlineProductionFromHacknetNodes = processAllHacknetNodeEarnings(numCyclesOffline);
+            var offlineProductionFromHacknetNodes = processHacknetEarnings(numCyclesOffline);
+            const hacknetProdInfo = hasHacknetServers() ?
+                                    `${numeralWrapper.format(offlineProductionFromHacknetNodes, "0.000a")} hashes` :
+                                    `${numeralWrapper.formatMoney(offlineProductionFromHacknetNodes)}`;
 
             //Passive faction rep gain offline
             processPassiveFactionRepGain(numCyclesOffline);
@@ -1237,8 +1243,8 @@ const Engine = {
             const timeOfflineString = convertTimeMsToTimeElapsedString(time);
             dialogBoxCreate(`Offline for ${timeOfflineString}. While you were offline, your scripts ` +
                             "generated <span class='money-gold'>" +
-                            numeralWrapper.formatMoney(offlineProductionFromScripts) + "</span> and your Hacknet Nodes generated <span class='money-gold'>" +
+                            numeralWrapper.formatMoney(offlineProductionFromScripts) + "</span> " +
-                            numeralWrapper.formatMoney(offlineProductionFromHacknetNodes) + "</span>");
+                            "and your Hacknet Nodes generated <span class='money-gold'>" + hacknetProdInfo + "</span>");
             //Close main menu accordions for loaded game
             var visibleMenuTabs = [terminal, createScript, activeScripts, stats,
                                    hacknetnodes, city, tutorial, options, dev];

src/index.html

@@ -203,35 +203,7 @@ if (htmlWebpackPlugin.options.googleAnalytics.trackingId) { %>
 
     <!-- Hacknet Nodes -->
     <div id="hacknet-nodes-container" class="generic-menupage-container">
-        <h1 id="hacknet-nodes-title"> Hacknet Nodes </h1>
+        <!-- React Component -->
-        <p id="hacknet-nodes-text" class="menu-page-text">
-        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.
-        <br /><br />
-        Here, you can purchase a Hacknet Node, a specialized machine that can connect and contribute its
-        resources to the Hacknet network. 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.
-        <br /><br />
-        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.
-        </p>
-        <a id="hacknet-nodes-purchase-button" class="a-link-button"> Purchase Hacknet Node </a>
-        <br />
-        <div id="hacknet-nodes-money-multipliers-div">
-            <p id="hacknet-nodes-money">
-                <span>Money:</span><span id="hacknet-nodes-player-money" class="money-gold"></span><br />
-                <span>Total Hacknet Node Production:</span><span id="hacknet-nodes-total-production" class="money-gold"></span>
-            </p>
-            <span id="hacknet-nodes-multipliers">
-                <a id="hacknet-nodes-1x-multiplier" class="a-link-button-inactive"> x1 </a>
-                <a id="hacknet-nodes-5x-multiplier" class="a-link-button"> x5 </a>
-                <a id="hacknet-nodes-10x-multiplier" class="a-link-button"> x10 </a>
-                <a id="hacknet-nodes-max-multiplier" class="a-link-button"> MAX </a>
-            </span>
-        </div>
-        <ul id="hacknet-nodes-list">
-        </ul>
     </div>
 
     <!-- World -->

src/ui/React/ServerDropdown.jsx

@@ -0,0 +1,65 @@
+/**
+ * Creates a dropdown (select HTML element) with server hostnames as options
+ *
+ * Configurable to only contain certain types of servers
+ */
+import React from "react";
+import { AllServers } from "../../Server/AllServers";
+
+import { HacknetServer } from "../../Hacknet/HacknetServer";
+
+// TODO make this an enum when this gets converted to TypeScript
+export const ServerType = {
+    All:        0,
+    Foreign:    1, // Hackable, non-owned servers
+    Owned:      2, // Home Computer, Purchased Servers, and Hacknet Servers
+    Purchased:  3, // Everything from Owned except home computer
+}
+
+export class ServerDropdown extends React.Component {
+    /**
+     * Checks if the server should be shown in the dropdown menu, based on the
+     * 'serverType' property
+     */
+    isValidServer(s) {
+        const type = this.props.serverType;
+        switch (type) {
+            case ServerType.All:
+                return true;
+            case ServerType.Foreign:
+                return (s.hostname !== "home" && !s.purchasedByPlayer);
+            case ServerType.Owned:
+                return s.purchasedByPlayer || (s instanceof HacknetServer) || s.hostname === "home";
+            case ServerType.Purchased:
+                return s.purchasedByPlayer || (s instanceof HacknetServer);
+            default:
+                console.warn(`Invalid ServerType specified for ServerDropdown component: ${type}`);
+                return false;
+        }
+    }
+
+    /**
+     * Given a Server object, creates a Option element
+     */
+    renderOption(s) {
+        return (
+            <option key={s.hostname} value={s.hostname}>{s.hostname}</option>
+        )
+    }
+
+    render() {
+        const servers = [];
+        for (const serverName in AllServers) {
+            const server = AllServers[serverName];
+            if (this.isValidServer(server)) {
+                servers.push(this.renderOption(server));
+            }
+        }
+
+        return (
+            <select className={"dropdown"} onChange={this.props.onChange} style={this.props.style}>
+                {servers}
+            </select>
+        )
+    }
+}

src/ui/React/createPopup.ts

@@ -0,0 +1,56 @@
+/**
+ * Create a pop-up dialog box using React.
+ *
+ * Calling this function with the same ID and React Root Component will trigger a re-render
+ *
+ * @param id The (hopefully) unique identifier for the popup container
+ * @param rootComponent Root React Component
+ */
+import * as React       from "react";
+import * as ReactDOM    from "react-dom";
+
+import { createElement } from "../../../utils/uiHelpers/createElement";
+import { removeElementById } from "../../../utils/uiHelpers/removeElementById";
+
+type ReactComponent = new(...args: any[]) => React.Component<any, any>;
+
+export function createPopup(id: string, rootComponent: ReactComponent, props: object): HTMLElement {
+    let container = document.getElementById(id);
+    let content = document.getElementById(`${id}-content`);
+    if (container == null || content == null) {
+        container = createElement("div", {
+            class: "popup-box-container",
+            display: "flex",
+            id: id,
+        });
+
+        content = createElement("div", {
+            class: "popup-box-content",
+            id: `${id}-content`,
+        });
+
+        container.appendChild(content);
+
+        try {
+            document.getElementById("entire-game-container")!.appendChild(container);
+        } catch(e) {
+            console.error(`Exception caught when creating popup: ${e}`);
+        }
+    }
+
+    ReactDOM.render(React.createElement(rootComponent, props), content);
+
+    return container;
+}
+
+/**
+ * Closes a popup created with the createPopup() function above
+ */
+export function removePopup(id: string): void {
+    let content = document.getElementById(`${id}-content`);
+    if (content == null) { return; }
+
+    ReactDOM.unmountComponentAtNode(content);
+
+    removeElementById(id);
+}

src/utils/createRandomString.ts

@@ -0,0 +1,12 @@
+// Function that generates a random gibberish string of length n
+const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+
+export function createRandomString(n: number): string {
+    let str: string = "";
+
+    for (let i = 0; i < n; ++i) {
+        str += chars.charAt(Math.floor(Math.random() * chars.length));
+    }
+
+    return str;
+}