Merge branch 'dev' of https://github.com/danielyxie/bitburner into dev

css/stockmarket.scss

@@ -7,35 +7,44 @@
     p {
         font-size: $defaultFontSize * 0.8125;
     }
+
     a {
         font-size: $defaultFontSize * 0.875;
     }
-    h2 {
+}
+
+.stock-market-info-and-purchases {
+    > h2 {
+        display: block;
         margin-top: 10px;
         margin-left: 10px;
+    }
+
+    > p {
         display: block;
+        margin-left: 10px;
+        width: 70%;
+    }
+
+    > a, > button {
+        margin: 10px;
     }
 }
 
-#stock-market-list li {
+#stock-market-list {
-    button {
+    list-style: none;
-        font-size: $defaultFontSize;
+
+    li {
+        button {
+            font-size: $defaultFontSize;
+        }
     }
 }
 
-#stock-market-container p {
-    padding: 6px;
-    margin: 6px;
-    width: 70%;
-}
-
-#stock-market-container a {
-    margin: 10px;
-}
-
 #stock-market-watchlist-filter {
+    margin: 5px 5px 5px 10px;
+    padding: 4px;
     width: 50%;
-    margin-left: 10px;
 }
 
 .stock-market-input {
@@ -47,14 +56,36 @@
     color: var(--my-font-color);
 }
 
+.stock-market-price-movement-warning {
+    border: 1px solid white;
+    color: red;
+    margin: 2px;
+    padding: 2px;
+}
+
 .stock-market-position-text {
     color: #fff;
-    display: inline-block;
+    display: block;
+
+    p {
+        color: #fff;
+        display: inline-block;
+        margin: 4px;
+    }
+
+    h3 {
+        margin: 4px;
+    }
 }
 
 .stock-market-order-list {
     overflow-y: auto;
     max-height: 100px;
+
+    li {
+        color: #fff;
+        padding: 4px;
+    }
 }
 
 .stock-market-order-cancel-btn {

doc/source/basicgameplay/stockmarket.rst

@@ -7,10 +7,14 @@ buy and sell stocks in order to make money.
 
 The WSE can be found in the 'City' tab, and is accessible in every city.
 
-Automating the Stock Market
+Fundamentals
-^^^^^^^^^^^^^^^^^^^^^^^^^^^
+------------
-You can write scripts to perform automatic and algorithmic trading on the Stock Market.
+The Stock Market is not as simple as "buy at price X and sell at price Y". The following
-See :ref:`netscript_tixapi` for more details. 
+are several fundamental concepts you need to understand about the stock market.
+
+.. note:: For those that have experience with finance/trading/investing, please be aware
+          that the game's stock market does not function exactly like it does in the real
+          world. So these concepts below should seem similar, but won't be exactly the same.
 
 Positions: Long vs Short
 ^^^^^^^^^^^^^^^^^^^^^^^^
@@ -21,16 +25,61 @@ is the exact opposite. In a Short position you purchase shares of a stock and
 earn a profit if the price of that stock decreases. This is also called 'shorting'
 a stock.
 
-NOTE: Shorting stocks is not available immediately, and must be unlocked later in the
+.. note:: Shorting stocks is not available immediately, and must be unlocked later in the
-game.
+          game.
+
+.. _gameplay_stock_market_spread:
+
+Spread (Bid Price & Ask Price)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+The **bid price** is the maximum price at which someone will buy a stock on the
+stock market.
+
+The **ask price** is the minimum price that a seller is willing to receive for a stock
+on the stock market
+
+The ask price will always be higher than the bid price (This is because if a seller
+is willing to receive less than the bid price, that transaction is guaranteed to
+happen). The difference between the bid and ask price is known as the **spread**.
+A stock's "price" will be the average of the bid and ask price.
+
+The bid and ask price are important because these are the prices at which a
+transaction actually occurs. If you purchase a stock in the long position, the cost
+of your purchase depends on that stock's ask price. If you then try to sell that
+stock (still in the long position), the price at which you sell is the stock's
+bid price. Note that this is reversed for a short position. Purchasing a stock
+in the short position will occur at the stock's bid price, and selling a stock
+in the short position will occur at the stock's ask price.
+
+.. _gameplay_stock_spread_price_movement:
+
+Transactions Influencing Stock Price
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Buying or selling a large number of shares of a stock will influence that stock's price.
+
+Buying a stock in the long position will cause that stock's price to
+increase. Selling a stock in the long position will cause the stock's price to decrease.
+The reverse occurs for the short position. The effect of this depends on how many shares
+are being transacted. More shares will have a bigger effect on the stock price. If
+only a small number of shares are being transacted, the stock price may not be affected.
+
+Note that this "influencing" of the stock price **can happen in the middle of a transaction**.
+For example, assume you are selling 1m shares of a stock. That stock's bid price
+is currently $100. However, selling 100k shares of the stock causes its price to drop
+by 1%. This means that for your transaction of 1m shares, the first 100k shares will be
+sold at $100. Then the next 100k shares will be sold at $99. Then the next 100k shares will
+be sold at $98.01, and so on.
+
+This is an important concept to keep in mind if you are trying to purchase/sell a
+large number of shares, as **it can negatively affect your profits**.
 
 Order Types
 ^^^^^^^^^^^
 There are three different types of orders you can make to buy or sell stocks on the exchange:
 Market Order, Limit Order, and Stop Order.
 
-Note that Limit Orders and Stop Orders are not available immediately, and must be unlocked
+.. note:: Limit Orders and Stop Orders are not available immediately, and must be unlocked
-later in the game.
+          later in the game.
 
 When you place a Market Order to buy or sell a stock, the order executes immediately at
 whatever the current price of the stock is. For example if you choose to short a stock
@@ -71,3 +120,8 @@ A Limit Order to sell will execute if the stock's price <= order's price
 A Stop Order to buy will execute if the stock's price <= order's price
 
 A Stop Order to sell will execute if the stock's price >= order's price.
+
+Automating the Stock Market
+---------------------------
+You can write scripts to perform automatic and algorithmic trading on the Stock Market.
+See :ref:`netscript_tixapi` for more details.

doc/source/netscript/netscriptixapi.rst

@@ -15,11 +15,15 @@ access even after you 'reset' by installing Augmentations
 
 .. toctree::
     :caption: API Functions:
-    
+
     getStockSymbols() <tixapi/getStockSymbols>
     getStockPrice() <tixapi/getStockPrice>
+    getStockAskPrice() <tixapi/getStockAskPrice>
+    getStockBidPrice() <tixapi/getStockBidPrice>
     getStockPosition() <tixapi/getStockPosition>
     getStockMaxShares() <tixapi/getStockMaxShares>
+    getStockPurchaseCost() <tixapi/getStockPurchaseCost>
+    getStockSaleGain() <tixapi/getStockSaleGain>
     buyStock() <tixapi/buyStock>
     sellStock() <tixapi/sellStock>
     shortStock() <tixapi/shortStock>

doc/source/netscript/tixapi/getStockAskPrice.rst

@@ -0,0 +1,12 @@
+getStockAskPrice() Netscript Function
+=====================================
+
+.. js:function:: getStockAskPrice(sym)
+
+    :param string sym: Stock symbol
+    :RAM cost: 2 GB
+
+    Given a stock's symbol, returns the ask price of that stock (the symbol is a sequence
+    of two to four capital letters, **not** the name of the company to which that stock belongs).
+
+    See :ref:`gameplay_stock_market_spread` for details on what the ask price is.

doc/source/netscript/tixapi/getStockBidPrice.rst

@@ -0,0 +1,12 @@
+getStockBidPrice() Netscript Function
+=====================================
+
+.. js:function:: getStockBidPrice(sym)
+
+    :param string sym: Stock symbol
+    :RAM cost: 2 GB
+
+    Given a stock's symbol, returns the bid price of that stock (the symbol is a sequence
+    of two to four capital letters, **not** the name of the company to which that stock belongs).
+
+    See :ref:`gameplay_stock_market_spread` for details on what the bid price is.

doc/source/netscript/tixapi/getStockPrice.rst

@@ -6,9 +6,12 @@ getStockPrice() Netscript Function
     :param string sym: Stock symbol
     :RAM cost: 2 GB
 
-    Returns the price of a stock, given its symbol (NOT the company name). The symbol is a sequence
+    Given a stock's symbol, returns the price of that stock (the symbol is a sequence
-    of two to four capital letters.
+    of two to four capital letters, **not** the name of the company to which that stock belongs).
+
+    .. note:: The stock's price is the average of its bid and ask price.
+              See :ref:`gameplay_stock_market_spread` for details on what this means.
 
     Example::
 
-        getStockPrice("FISG");
+        getStockPrice("FSIG");

doc/source/netscript/tixapi/getStockPurchaseCost.rst

@@ -0,0 +1,15 @@
+getStockPurchaseCost() Netscript Function
+=========================================
+
+.. js:function:: getStockPurchaseCost(sym, shares, posType)
+
+    :param string sym: Stock symbol
+    :param number shares: Number of shares to purchase
+    :param string posType: Specifies whether the order is a "Long" or "Short" position.
+                           The values "L" or "S" can also be used.
+    :RAM cost: 2 GB
+
+    Calculates and returns how much it would cost to buy a given number of
+    shares of a stock. This takes into account :ref:`spread <gameplay_stock_market_spread>`,
+    :ref:`large transactions influencing the price of the stock <gameplay_stock_spread_price_movement>`
+    and commission fees.

doc/source/netscript/tixapi/getStockSaleGain.rst

@@ -0,0 +1,15 @@
+getStockSaleGain() Netscript Function
+=====================================
+
+.. js:function:: getStockSaleGain(sym, shares, posType)
+
+    :param string sym: Stock symbol
+    :param number shares: Number of shares to purchase
+    :param string posType: Specifies whether the order is a "Long" or "Short" position.
+                           The values "L" or "S" can also be used.
+    :RAM cost: 2 GB
+
+    Calculates and returns how much you would gain from selling a given number of
+    shares of a stock. This takes into account :ref:`spread <gameplay_stock_market_spread>`,
+    :ref:`large transactions influencing the price of the stock <gameplay_stock_spread_price_movement>`
+    and commission fees.

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "bitburner",
-  "version": "0.45.0",
+  "version": "0.46.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -928,12 +928,6 @@
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
       "dev": true
     },
-    "assertion-error": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
-      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
-      "dev": true
-    },
     "assign-symbols": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
@@ -1319,12 +1313,6 @@
       "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=",
       "dev": true
     },
-    "browser-stdout": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
-      "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
-      "dev": true
-    },
     "browserify-aes": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
@@ -1626,29 +1614,6 @@
         "lazy-cache": "1.0.4"
       }
     },
-    "chai": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.1.2.tgz",
-      "integrity": "sha1-D2RYS6ZC8PKs4oBiefTwbKI61zw=",
-      "dev": true,
-      "requires": {
-        "assertion-error": "1.1.0",
-        "check-error": "1.0.2",
-        "deep-eql": "3.0.1",
-        "get-func-name": "2.0.0",
-        "pathval": "1.1.0",
-        "type-detect": "4.0.8"
-      }
-    },
-    "chai-as-promised": {
-      "version": "7.1.1",
-      "resolved": "https://registry.npmjs.org/chai-as-promised/-/chai-as-promised-7.1.1.tgz",
-      "integrity": "sha512-azL6xMoi+uxu6z4rhWQ1jbdUhOMhis2PvscD/xjLqNMkv3BPPp2JyyuTHOrf9BOosGpNQ11v6BKv/g57RXbiaA==",
-      "dev": true,
-      "requires": {
-        "check-error": "1.0.2"
-      }
-    },
     "chalk": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
@@ -1700,12 +1665,6 @@
       "integrity": "sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=",
       "dev": true
     },
-    "check-error": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz",
-      "integrity": "sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=",
-      "dev": true
-    },
     "chokidar": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-2.0.3.tgz",
@@ -2870,15 +2829,6 @@
       "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=",
       "dev": true
     },
-    "deep-eql": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-3.0.1.tgz",
-      "integrity": "sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==",
-      "dev": true,
-      "requires": {
-        "type-detect": "4.0.8"
-      }
-    },
     "deep-equal": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.0.1.tgz",
@@ -4440,12 +4390,6 @@
       "integrity": "sha1-9wLmMSfn4jHBYKgMFVSstw1QR+U=",
       "dev": true
     },
-    "get-func-name": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/get-func-name/-/get-func-name-2.0.0.tgz",
-      "integrity": "sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=",
-      "dev": true
-    },
     "get-stdin": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-4.0.1.tgz",
@@ -4654,12 +4598,6 @@
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.11.tgz",
       "integrity": "sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg="
     },
-    "growl": {
-      "version": "1.10.5",
-      "resolved": "https://registry.npmjs.org/growl/-/growl-1.10.5.tgz",
-      "integrity": "sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==",
-      "dev": true
-    },
     "handle-thing": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/handle-thing/-/handle-thing-2.0.0.tgz",
@@ -6852,59 +6790,6 @@
         "minimist": "0.0.8"
       }
     },
-    "mocha": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-5.2.0.tgz",
-      "integrity": "sha512-2IUgKDhc3J7Uug+FxMXuqIyYzH7gJjXECKe/w43IGgQHTSj3InJi+yAA7T24L9bQMRKiUEHxEX37G5JpVUGLcQ==",
-      "dev": true,
-      "requires": {
-        "browser-stdout": "1.3.1",
-        "commander": "2.15.1",
-        "debug": "3.1.0",
-        "diff": "3.5.0",
-        "escape-string-regexp": "1.0.5",
-        "glob": "7.1.2",
-        "growl": "1.10.5",
-        "he": "1.1.1",
-        "minimatch": "3.0.4",
-        "mkdirp": "0.5.1",
-        "supports-color": "5.4.0"
-      },
-      "dependencies": {
-        "commander": {
-          "version": "2.15.1",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
-          "integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==",
-          "dev": true
-        },
-        "diff": {
-          "version": "3.5.0",
-          "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
-          "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==",
-          "dev": true
-        },
-        "glob": {
-          "version": "7.1.2",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
-          "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
-          "dev": true,
-          "requires": {
-            "fs.realpath": "1.0.0",
-            "inflight": "1.0.6",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4",
-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
-          }
-        }
-      }
-    },
-    "mocha-lcov-reporter": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/mocha-lcov-reporter/-/mocha-lcov-reporter-1.3.0.tgz",
-      "integrity": "sha1-Rpve9PivyaEWBW8HnfYYLQr7A4Q=",
-      "dev": true
-    },
     "move-concurrently": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/move-concurrently/-/move-concurrently-1.0.1.tgz",
@@ -7734,12 +7619,6 @@
       "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w=",
       "dev": true
     },
-    "pathval": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.0.tgz",
-      "integrity": "sha1-uULm1L3mUwBe9rcTYd74cn0GReA=",
-      "dev": true
-    },
     "pbkdf2": {
       "version": "3.0.16",
       "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.0.16.tgz",

package.json

@@ -48,8 +48,6 @@
     "beautify-lint": "^1.0.3",
     "benchmark": "^2.1.1",
     "bundle-loader": "~0.5.0",
-    "chai": "^4.1.2",
-    "chai-as-promised": "^7.1.1",
     "css-loader": "^0.28.11",
     "es6-promise-polyfill": "^1.1.1",
     "eslint": "^4.19.1",
@@ -65,8 +63,6 @@
     "lodash": "^4.17.10",
     "mini-css-extract-plugin": "^0.4.1",
     "mkdirp": "^0.5.1",
-    "mocha": "^5.2.0",
-    "mocha-lcov-reporter": "^1.0.0",
     "node-sass": "^4.10.0",
     "raw-loader": "~0.5.0",
     "sass-loader": "^7.0.3",

src/Constants.ts

@@ -275,35 +275,15 @@ export let CONSTANTS: IMap<any> = {
 
     LatestUpdate:
     `
-    v0.46.3
+    v0.47.0
-    * Added a new Augmentation: The Shadow's Simulacrum
+    * Stock Market changes:
-    * Improved tab autocompletion feature in Terminal so that it works better with directories
+    ** Implemented spread. Stock's now have bid and ask prices at which transactions occur
-    * Bug Fix: Tech vendor location UI now properly refreshed when purchasing a TOR router
+    ** Large transactions will now influence a stock's price.
-    * Bug Fix: Fixed UI issue with faction donations
+    ** This "influencing" can take effect in the middle of a transaction
-    * Bug Fix: The money statistics & breakdown should now properly track money earned from Hacknet Server (hashes -> money)
+    ** See documentation for more details on these changes
-    * Bug Fix: Fixed issue with changing input in 'Minimum Path Sum in a Triangle' coding contract problem
+    ** Added getStockAskPrice(), getStockBidPrice() Netscript functions to the TIX API
-    * Fixed several typos in various places
+    ** Added getStockPurchaseCost(), getStockSaleGain() Netscript functions to the TIX API
 
-    v0.46.2
-    * Source-File 2 now allows you to form gangs in other BitNodes when your karma reaches a very large negative value
-    ** (Karma is a hidden stat and is lowered by committing crimes)
-    * Gang changes:
-    ** Bug Fix: Gangs can no longer clash with themselve
-    ** Bug Fix: Winning against another gang should properly reduce their power
 
-    * Bug Fix: Terminal 'wget' command now works properly
-    * Bug Fix: Hacknet Server Hash upgrades now properly reset upon installing Augs/switching BitNodes
-    * Bug Fix: Fixed button for creating Corporations
-
-    v0.46.1
-    * Added a very rudimentary directory system to the Terminal
-    ** Details here: https://bitburner.readthedocs.io/en/latest/basicgameplay/terminal.html#filesystem-directories
-    * Added numHashes(), hashCost(), and spendHashes() functions to the Netscript Hacknet Node API
-    * 'Generate Coding Contract' hash upgrade is now more expensive
-    * 'Generate Coding Contract' hash upgrade now generates the contract randomly on the server, rather than on home computer
-    * The cost of selling hashes for money no longer increases each time
-    * Selling hashes for money now costs 4 hashes (in exchange for $1m)
-    * Bug Fix: Hacknet Node earnings should work properly when game is inactive/offline
-    * Bug Fix: Duplicate Sleeve augmentations are now properly reset when switching to a new BitNode
     `
 }

src/NetscriptFunctions.js

@@ -75,20 +75,22 @@ import { SpecialServerIps } from "./Server/SpecialServerIps";
 import { Stock } from "./StockMarket/Stock";
 import {
     StockMarket,
-    StockSymbols,
     SymbolToStockMap,
-    initStockMarket,
     initSymbolToStockMap,
     buyStock,
     sellStock,
-    updateStockPlayerPosition,
     shortStock,
     sellShort,
-    OrderTypes,
-    PositionTypes,
     placeOrder,
     cancelOrder
 } from "./StockMarket/StockMarket";
+import {
+    getBuyTransactionCost,
+    getSellTransactionGain,
+} from "./StockMarket/StockMarketHelpers";
+import { OrderTypes } from "./StockMarket/data/OrderTypes";
+import { PositionTypes } from "./StockMarket/data/PositionTypes";
+import { StockSymbols } from "./StockMarket/data/StockSymbols";
 import {
     getStockmarket4SDataCost,
     getStockMarket4STixApiCost
@@ -282,6 +284,29 @@ function NetscriptFunctions(workerScript) {
         return server;
     }
 
+    /**
+     * Checks if the player has TIX API access. Throws an error if the player does not
+     */
+    const checkTixApiAccess = function(callingFn="") {
+        if (!Player.hasTixApiAccess) {
+            throw makeRuntimeRejectMsg(workerScript, `You don't have TIX API Access! Cannot use ${callingFn}()`);
+        }
+    }
+
+    /**
+     * Gets a stock, given its symbol. Throws an error if the symbol is invalid
+     * @param {string} symbol - Stock's symbol
+     * @returns {Stock} stock object
+     */
+    const getStockFromSymbol = function(symbol, callingFn="") {
+        const stock = SymbolToStockMap[symbol];
+        if (stock == null) {
+            throw makeRuntimeRejectMsg(workerScript, `Invalid stock symbol passed into ${callingFn}()`);
+        }
+
+        return stock;
+    }
+
     /**
      * Used to fail a function if the function's target is a Hacknet Server.
      * This is used for functions that should run on normal Servers, but not Hacknet Servers
@@ -930,7 +955,7 @@ function NetscriptFunctions(workerScript) {
             if (scriptname === undefined) {
                 throw makeRuntimeRejectMsg(workerScript, "run() call has incorrect number of arguments. Usage: run(scriptname, [numThreads], [arg1], [arg2]...)");
             }
-            if (isNaN(threads) || threads < 0) {
+            if (isNaN(threads) || threads <= 0) {
                 throw makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into run(). Must be numeric and greater than 0");
             }
             var argsForNewScript = [];
@@ -1587,9 +1612,7 @@ function NetscriptFunctions(workerScript) {
                 return updateStaticRam("getStockSymbols", CONSTANTS.ScriptGetStockRamCost);
             }
             updateDynamicRam("getStockSymbols", CONSTANTS.ScriptGetStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("getStockSymbols");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use getStockSymbols()");
-            }
             return Object.values(StockSymbols);
         },
         getStockPrice : function(symbol) {
@@ -1597,23 +1620,37 @@ function NetscriptFunctions(workerScript) {
                 return updateStaticRam("getStockPrice", CONSTANTS.ScriptGetStockRamCost);
             }
             updateDynamicRam("getStockPrice", CONSTANTS.ScriptGetStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("getStockPrice");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use getStockPrice()");
+            const stock = getStockFromSymbol(symbol, "getStockPrice");
+
+            return stock.price;
+        },
+        getStockAskPrice : function(symbol) {
+            if (workerScript.checkingRam) {
+                return updateStaticRam("getStockAskPrice", CONSTANTS.ScriptGetStockRamCost);
             }
-            var stock = SymbolToStockMap[symbol];
+            updateDynamicRam("getStockAskPrice", CONSTANTS.ScriptGetStockRamCost);
-            if (stock == null) {
+            checkTixApiAccess("getStockAskPrice");
-                throw makeRuntimeRejectMsg(workerScript, "Invalid stock symbol passed into getStockPrice()");
+            const stock = getStockFromSymbol(symbol, "getStockAskPrice");
+
+            return stock.getAskPrice();
+        },
+        getStockBidPrice : function(symbol) {
+            if (workerScript.checkingRam) {
+                return updateStaticRam("getStockBidPrice", CONSTANTS.ScriptGetStockRamCost);
             }
-            return parseFloat(stock.price.toFixed(3));
+            updateDynamicRam("getStockBidPrice", CONSTANTS.ScriptGetStockRamCost);
+            checkTixApiAccess("getStockBidPrice");
+            const stock = getStockFromSymbol(symbol, "getStockBidPrice");
+
+            return stock.getBidPrice();
         },
         getStockPosition : function(symbol) {
             if (workerScript.checkingRam) {
                 return updateStaticRam("getStockPosition", CONSTANTS.ScriptGetStockRamCost);
             }
             updateDynamicRam("getStockPosition", CONSTANTS.ScriptGetStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("getStockPosition");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use getStockPosition()");
-            }
             var stock = SymbolToStockMap[symbol];
             if (stock == null) {
                 throw makeRuntimeRejectMsg(workerScript, "Invalid stock symbol passed into getStockPosition()");
@@ -1625,166 +1662,126 @@ function NetscriptFunctions(workerScript) {
                 return updateStaticRam("getStockMaxShares", CONSTANTS.ScriptGetStockRamCost);
             }
             updateDynamicRam("getStockMaxShares", CONSTANTS.ScriptGetStockRamCost);
-
+            checkTixApiAccess("getStockMaxShares");
-            if (!Player.hasTixApiAccess) {
+            const stock = getStockFromSymbol(symbol, "getStockMaxShares");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use getStockMaxShares()");
-            }
-            const stock = SymbolToStockMap[symbol];
-            if (stock == null) {
-                throw makeRuntimeRejectMsg(workerScript, "Invalid stock symbol passed into getStockMaxShares()");
-            }
 
             return stock.maxShares;
         },
+        getStockPurchaseCost : function(symbol, shares, posType) {
+            if (workerScript.checkingRam) {
+                return updateStaticRam("getStockPurchaseCost", CONSTANTS.ScriptGetStockRamCost);
+            }
+            updateDynamicRam("getStockPurchaseCost", CONSTANTS.ScriptGetStockRamCost);
+            checkTixApiAccess("getStockPurchaseCost");
+            const stock = getStockFromSymbol(symbol, "getStockPurchaseCost");
+            shares = Math.round(shares);
+
+            let pos;
+            const sanitizedPosType = posType.toLowerCase();
+            if (sanitizedPosType.includes("l")) {
+                pos = PositionTypes.Long;
+            } else if (sanitizedPosType.includes("s")) {
+                pos = PositionTypes.Short;
+            } else {
+                return Infinity;
+            }
+
+            const res = getBuyTransactionCost(stock, shares, pos);
+            if (res == null) { return Infinity; }
+
+            return res;
+        },
+        getStockSaleGain : function(symbol, shares, posType) {
+            if (workerScript.checkingRam) {
+                return updateStaticRam("getStockSaleGain", CONSTANTS.ScriptGetStockRamCost);
+            }
+            updateDynamicRam("getStockSaleGain", CONSTANTS.ScriptGetStockRamCost);
+            checkTixApiAccess("getStockSaleGain");
+            const stock = getStockFromSymbol(symbol, "getStockSaleGain");
+            shares = Math.round(shares);
+
+            let pos;
+            const sanitizedPosType = posType.toLowerCase();
+            if (sanitizedPosType.includes("l")) {
+                pos = PositionTypes.Long;
+            } else if (sanitizedPosType.includes("s")) {
+                pos = PositionTypes.Short;
+            } else {
+                return 0;
+            }
+
+            const res = getSellTransactionGain(stock, shares, pos);
+            if (res == null) { return 0; }
+
+            return res;
+        },
         buyStock : function(symbol, shares) {
             if (workerScript.checkingRam) {
                 return updateStaticRam("buyStock", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("buyStock", CONSTANTS.ScriptBuySellStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("buyStock");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use buyStock()");
+            const stock = getStockFromSymbol(symbol, "buyStock");
-            }
+            const res = buyStock(stock, shares, workerScript);
-            var stock = SymbolToStockMap[symbol];
-            if (stock == null) {
-                throw makeRuntimeRejectMsg(workerScript, "Invalid stock symbol passed into buyStock()");
-            }
-            if (shares < 0 || isNaN(shares)) {
-                workerScript.scriptRef.log("ERROR: Invalid 'shares' argument passed to buyStock()");
-                return 0;
-            }
-            shares = Math.round(shares);
-            if (shares === 0) {return 0;}
 
-            // Does player have enough money?
+            return res ? stock.price : 0;
-            var totalPrice = stock.price * shares;
-            if (Player.money.lt(totalPrice + CONSTANTS.StockMarketCommission)) {
-                workerScript.scriptRef.log("Not enough money to purchase " + formatNumber(shares, 0) + " shares of " +
-                                           symbol + ". Need $" +
-                                           formatNumber(totalPrice + CONSTANTS.StockMarketCommission, 2).toString());
-                return 0;
-            }
-
-            // Would this purchase exceed the maximum number of shares?
-            if (shares + stock.playerShares + stock.playerShortShares > stock.maxShares) {
-                workerScript.scriptRef.log(`You cannot purchase this many shares. ${stock.symbol} has a maximum of ` +
-                                           `${stock.maxShares} shares.`);
-                return 0;
-            }
-
-            var origTotal = stock.playerShares * stock.playerAvgPx;
-            Player.loseMoney(totalPrice + CONSTANTS.StockMarketCommission);
-            var newTotal = origTotal + totalPrice;
-            stock.playerShares += shares;
-            stock.playerAvgPx = newTotal / stock.playerShares;
-            if (routing.isOn(Page.StockMarket)) {
-                updateStockPlayerPosition(stock);
-            }
-            if (workerScript.disableLogs.ALL == null && workerScript.disableLogs.buyStock == null) {
-                workerScript.scriptRef.log("Bought " + formatNumber(shares, 0) + " shares of " + stock.symbol + " at $" +
-                                           formatNumber(stock.price, 2) + " per share");
-            }
-            return stock.price;
         },
         sellStock : function(symbol, shares) {
             if (workerScript.checkingRam) {
                 return updateStaticRam("sellStock", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("sellStock", CONSTANTS.ScriptBuySellStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("sellStock");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use sellStock()");
+            const stock = getStockFromSymbol(symbol, "sellStock");
-            }
+            const res = sellStock(stock, shares, workerScript);
-            var stock = SymbolToStockMap[symbol];
-            if (stock == null) {
-                throw makeRuntimeRejectMsg(workerScript, "Invalid stock symbol passed into sellStock()");
-            }
-            if (shares < 0 || isNaN(shares)) {
-                workerScript.scriptRef.log("ERROR: Invalid 'shares' argument passed to sellStock()");
-                return 0;
-            }
-            shares = Math.round(shares);
-            if (shares > stock.playerShares) {shares = stock.playerShares;}
-            if (shares === 0) {return 0;}
-            var gains = stock.price * shares - CONSTANTS.StockMarketCommission;
-            Player.gainMoney(gains);
 
-            // Calculate net profit and add to script stats
+            return res ? stock.price : 0;
-            var netProfit = ((stock.price - stock.playerAvgPx) * shares) - CONSTANTS.StockMarketCommission;
-            if (isNaN(netProfit)) {netProfit = 0;}
-            workerScript.scriptRef.onlineMoneyMade += netProfit;
-            Player.scriptProdSinceLastAug += netProfit;
-            Player.recordMoneySource(netProfit, "stock");
-
-            stock.playerShares -= shares;
-            if (stock.playerShares == 0) {
-                stock.playerAvgPx = 0;
-            }
-            if (routing.isOn(Page.StockMarket)) {
-                updateStockPlayerPosition(stock);
-            }
-            if (workerScript.disableLogs.ALL == null && workerScript.disableLogs.sellStock == null) {
-                workerScript.scriptRef.log("Sold " + formatNumber(shares, 0) + " shares of " + stock.symbol + " at $" +
-                                           formatNumber(stock.price, 2) + " per share. Gained " +
-                                           "$" + formatNumber(gains, 2));
-            }
-            return stock.price;
         },
-        shortStock(symbol, shares) {
+        shortStock : function(symbol, shares) {
             if (workerScript.checkingRam) {
                 return updateStaticRam("shortStock", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("shortStock", CONSTANTS.ScriptBuySellStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("shortStock");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use shortStock()");
-            }
             if (Player.bitNodeN !== 8) {
                 if (!(hasWallStreetSF && wallStreetSFLvl >= 2)) {
                     throw makeRuntimeRejectMsg(workerScript, "ERROR: Cannot use shortStock(). You must either be in BitNode-8 or you must have Level 2 of Source-File 8");
                 }
             }
-            var stock = SymbolToStockMap[symbol];
+            const stock = getStockFromSymbol(symbol, "shortStock");
-            if (stock == null) {
+            const res = shortStock(stock, shares, workerScript);
-                throw makeRuntimeRejectMsg(workerScript, "ERROR: Invalid stock symbol passed into shortStock()");
+
-            }
-            var res = shortStock(stock, shares, workerScript);
             return res ? stock.price : 0;
         },
-        sellShort(symbol, shares) {
+        sellShort : function(symbol, shares) {
             if (workerScript.checkingRam) {
                 return updateStaticRam("sellShort", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("sellShort", CONSTANTS.ScriptBuySellStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("sellShort");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use sellShort()");
-            }
             if (Player.bitNodeN !== 8) {
                 if (!(hasWallStreetSF && wallStreetSFLvl >= 2)) {
                     throw makeRuntimeRejectMsg(workerScript, "ERROR: Cannot use sellShort(). You must either be in BitNode-8 or you must have Level 2 of Source-File 8");
                 }
             }
-            var stock = SymbolToStockMap[symbol];
+            const stock = getStockFromSymbol(symbol, "sellShort");
-            if (stock == null) {
+            const res = sellShort(stock, shares, workerScript);
-                throw makeRuntimeRejectMsg(workerScript, "ERROR: Invalid stock symbol passed into sellShort()");
+
-            }
-            var res = sellShort(stock, shares, workerScript);
             return res ? stock.price : 0;
         },
-        placeOrder(symbol, shares, price, type, pos) {
+        placeOrder : function(symbol, shares, price, type, pos) {
             if (workerScript.checkingRam) {
                 return updateStaticRam("placeOrder", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("placeOrder", CONSTANTS.ScriptBuySellStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("placeOrder");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use placeOrder()");
-            }
             if (Player.bitNodeN !== 8) {
                 if (!(hasWallStreetSF && wallStreetSFLvl >= 3)) {
                     throw makeRuntimeRejectMsg(workerScript, "ERROR: Cannot use placeOrder(). You must either be in BitNode-8 or have Level 3 of Source-File 8");
                 }
             }
-            var stock = SymbolToStockMap[symbol];
+            const stock = getStockFromSymbol(symbol, "placeOrder");
-            if (stock == null) {
+
-                throw makeRuntimeRejectMsg(workerScript, "ERROR: Invalid stock symbol passed into placeOrder()");
-            }
             var orderType, orderPos;
             type = type.toLowerCase();
             if (type.includes("limit") && type.includes("buy")) {
@@ -1810,23 +1807,18 @@ function NetscriptFunctions(workerScript) {
 
             return placeOrder(stock, shares, price, orderType, orderPos, workerScript);
         },
-        cancelOrder(symbol, shares, price, type, pos) {
+        cancelOrder : function(symbol, shares, price, type, pos) {
             if (workerScript.checkingRam) {
                 return updateStaticRam("cancelOrder", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("cancelOrder", CONSTANTS.ScriptBuySellStockRamCost);
-            if (!Player.hasTixApiAccess) {
+            checkTixApiAccess("cancelOrder");
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use cancelOrder()");
-            }
             if (Player.bitNodeN !== 8) {
                 if (!(hasWallStreetSF && wallStreetSFLvl >= 3)) {
                     throw makeRuntimeRejectMsg(workerScript, "ERROR: Cannot use cancelOrder(). You must either be in BitNode-8 or have Level 3 of Source-File 8");
                 }
             }
-            var stock = SymbolToStockMap[symbol];
+            const stock = getStockFrom(symbol, "cancelOrder");
-            if (stock == null) {
-                throw makeRuntimeRejectMsg(workerScript, "ERROR: Invalid stock symbol passed into cancelOrder()");
-            }
             if (isNaN(shares) || isNaN(price)) {
                 throw makeRuntimeRejectMsg(workerScript, "ERROR: Invalid shares or price argument passed into cancelOrder(). Must be numeric");
             }
@@ -1903,10 +1895,8 @@ function NetscriptFunctions(workerScript) {
             if (!Player.has4SDataTixApi) {
                 throw makeRuntimeRejectMsg(workerScript, "You don't have 4S Market Data TIX API Access! Cannot use getStockVolatility()");
             }
-            var stock = SymbolToStockMap[symbol];
+            const stock = getStockFromSymbol(symbol, "getStockVolatility");
-            if (stock == null) {
+
-                throw makeRuntimeRejectMsg(workerScript, "ERROR: Invalid stock symbol passed into getStockVolatility()");
-            }
             return stock.mv / 100; // Convert from percentage to decimal
         },
         getStockForecast : function(symbol) {
@@ -1917,10 +1907,8 @@ function NetscriptFunctions(workerScript) {
             if (!Player.has4SDataTixApi) {
                 throw makeRuntimeRejectMsg(workerScript, "You don't have 4S Market Data TIX API Access! Cannot use getStockForecast()");
             }
-            var stock = SymbolToStockMap[symbol];
+            const stock = getStockFromSymbol(symbol, "getStockForecast");
-            if (stock == null) {
+
-                throw makeRuntimeRejectMsg(workerScript, "ERROR: Invalid stock symbol passed into getStockForecast()");
-            }
             var forecast = 50;
             stock.b ? forecast += stock.otlkMag : forecast -= stock.otlkMag;
             return forecast / 100; // Convert from percentage to decimal
@@ -1930,10 +1918,7 @@ function NetscriptFunctions(workerScript) {
                 return updateStaticRam("purchase4SMarketData", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("purchase4SMarketData", CONSTANTS.ScriptBuySellStockRamCost);
-
+            checkTixApiAccess("purchase4SMarketData");
-            if (!Player.hasTixApiAccess) {
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use purchase4SMarketData()");
-            }
 
             if (Player.has4SData) {
                 if (workerScript.shouldLog("purchase4SMarketData")) {
@@ -1961,10 +1946,7 @@ function NetscriptFunctions(workerScript) {
                 return updateStaticRam("purchase4SMarketDataTixApi", CONSTANTS.ScriptBuySellStockRamCost);
             }
             updateDynamicRam("purchase4SMarketDataTixApi", CONSTANTS.ScriptBuySellStockRamCost);
-
+            checkTixApiAccess("purchase4SMarketDataTixApi");
-            if (!Player.hasTixApiAccess) {
-                throw makeRuntimeRejectMsg(workerScript, "You don't have TIX API Access! Cannot use purchase4SMarketDataTixApi()");
-            }
 
             if (Player.has4SDataTixApi) {
                 if (workerScript.shouldLog("purchase4SMarketDataTixApi")) {

src/PersonObjects/IPlayer.ts

@@ -32,7 +32,10 @@ export interface IPlayer {
     factions: string[];
     firstTimeTraveled: boolean;
     hacknetNodes: (HacknetNode | string)[]; // HacknetNode object or IP of Hacknet Server
+    has4SData: boolean;
+    has4SDataTixApi: boolean;
     hashManager: HashManager;
+    hasTixApiAccess: boolean;
     hasWseAccount: boolean;
     homeComputer: string;
     hp: number;

src/Prestige.js

@@ -47,8 +47,6 @@ import {
 import {
     initStockMarket,
     initSymbolToStockMap,
-    stockMarketContentCreated,
-    setStockMarketContentCreated
 } from "./StockMarket/StockMarket";
 import { Terminal, postNetburnerText } from "./Terminal";
 
@@ -163,13 +161,6 @@ function prestigeAugmentation() {
         initStockMarket();
         initSymbolToStockMap();
     }
-    setStockMarketContentCreated(false);
-    var stockMarketList = document.getElementById("stock-market-list");
-    while(stockMarketList.firstChild) {
-        stockMarketList.removeChild(stockMarketList.firstChild);
-    }
-    var watchlist = document.getElementById("stock-market-watchlist-filter");
-    watchlist.value = ""; // Reset watchlist filter
 
     // Refresh Main Menu (the 'World' menu, specifically)
     document.getElementById("world-menu-header").click();
@@ -336,11 +327,6 @@ function prestigeSourceFile() {
         initStockMarket();
         initSymbolToStockMap();
     }
-    setStockMarketContentCreated(false);
-    var stockMarketList = document.getElementById("stock-market-list");
-    while(stockMarketList.firstChild) {
-        stockMarketList.removeChild(stockMarketList.firstChild);
-    }
 
     if (Player.inGang()) { Player.gang.clearUI(); }
     Player.gang = null;

src/Server/data/servers.ts

@@ -1,23 +1,7 @@
 // tslint:disable:max-file-line-count
 
 // This could actually be a JSON file as it should be constant metadata to be imported...
-
+import { IMinMaxRange } from "../../types";
-/**
- * Defines the minimum and maximum values for a range.
- * It is up to the consumer if these values are inclusive or exclusive.
- * It is up to the implementor to ensure max > min.
- */
-interface IMinMaxRange {
-    /**
-     * The maximum bound of the range.
-     */
-    max: number;
-
-    /**
-     * The minimum bound of the range.
-     */
-    min: number;
-}
 
 /**
  * The metadata describing the base state of servers on the network.

src/StockMarket/IOrderBook.ts

@@ -0,0 +1,5 @@
+import { Order } from "./Order";
+
+export interface IOrderBook {
+    [key: string]: Order[];
+}

src/StockMarket/IStockMarket.ts

@@ -0,0 +1,10 @@
+import { IOrderBook } from "./IOrderBook";
+import { Stock } from "./Stock";
+
+export type IStockMarket = {
+    [key: string]: Stock;
+} & {
+    lastUpdate: number;
+    storedCycles: number;
+    Orders: IOrderBook;
+}

src/StockMarket/Order.ts

@@ -0,0 +1,45 @@
+/**
+ * Represents a Limit or Buy Order on the stock market. Does not represent
+ * a Market Order since those are just executed immediately
+ */
+import { Stock } from "./Stock";
+import { OrderTypes } from "./data/OrderTypes";
+import { PositionTypes } from "./data/PositionTypes";
+
+import {
+    Generic_fromJSON,
+    Generic_toJSON,
+    Reviver
+} from "../../utils/JSONReviver";
+
+export class Order {
+    /**
+     * Initializes a Order from a JSON save state
+     */
+    static fromJSON(value: any): Order {
+        return Generic_fromJSON(Order, value.data);
+    }
+
+    readonly pos: PositionTypes;
+    readonly price: number;
+    readonly shares: number;
+    readonly stock: Stock;
+    readonly type: OrderTypes;
+
+    constructor(stk: Stock = new Stock(), shares: number=0, price: number=0, typ: OrderTypes=OrderTypes.LimitBuy, pos: PositionTypes=PositionTypes.Long) {
+        this.stock = stk;
+        this.shares = shares;
+        this.price = price;
+        this.type = typ;
+        this.pos = pos;
+    }
+
+    /**
+     * Serialize the Order to a JSON save state.
+     */
+    toJSON(): any {
+        return Generic_toJSON("Order", this);
+    }
+}
+
+Reviver.constructors.Order = Order;

src/StockMarket/Stock.ts

@@ -1,6 +1,58 @@
-import { Generic_fromJSON, Generic_toJSON, Reviver } from "../../utils/JSONReviver";
+import { IMinMaxRange } from "../types";
+import {
+    Generic_fromJSON,
+    Generic_toJSON,
+    Reviver
+} from "../../utils/JSONReviver";
 import { getRandomInt } from "../../utils/helpers/getRandomInt";
 
+export interface IConstructorParams {
+    b: boolean;
+    initPrice: number | IMinMaxRange;
+    marketCap: number;
+    mv: number | IMinMaxRange;
+    name: string;
+    otlkMag: number;
+    spreadPerc: number | IMinMaxRange;
+    shareTxForMovement: number | IMinMaxRange;
+    symbol: string;
+}
+
+const defaultConstructorParams: IConstructorParams = {
+    b: true,
+    initPrice: 10e3,
+    marketCap: 1e12,
+    mv: 1,
+    name: "",
+    otlkMag: 0,
+    spreadPerc: 0,
+    shareTxForMovement: 1e6,
+    symbol: "",
+}
+
+// Helper function that convert a IMinMaxRange to a number
+function toNumber(n: number | IMinMaxRange): number {
+    let value: number;
+    switch (typeof n) {
+        case "number": {
+            return <number>n;
+        }
+        case "object": {
+            const range = <IMinMaxRange>n;
+            value = getRandomInt(range.min, range.max);
+            break;
+        }
+        default:
+            throw Error(`Do not know how to convert the type '${typeof n}' to a number`);
+    }
+
+    if (typeof n === "object" && typeof n.divisor === "number") {
+        return value / n.divisor;
+    }
+
+    return value;
+}
+
 /**
  * Represents the valuation of a company in the World Stock Exchange.
  */
@@ -22,6 +74,11 @@ export class Stock {
      */
     readonly cap: number;
 
+    /**
+     * Stocks previous share price
+     */
+    lastPrice: number;
+
     /**
      * Maximum number of shares that player can own (both long and short combined)
      */
@@ -63,16 +120,33 @@ export class Stock {
      */
     playerShortShares: number;
 
-    /**
-     * The HTML element that displays the stock's info in the UI
-     */
-    posTxtEl: HTMLElement | null;
-
     /**
      * Stock's share price
      */
     price: number;
 
+    /**
+     * Percentage by which the stock's price changes for a transaction-induced
+     * price movement.
+     */
+    readonly priceMovementPerc: number;
+
+    /**
+     * How many shares need to be transacted in order to trigger a price movement
+     */
+    readonly shareTxForMovement: number;
+
+    /**
+     * How many share transactions remaining until a price movement occurs
+     */
+    shareTxUntilMovement: number;
+
+    /**
+     * Spread percentage. The bid/ask prices for this stock are N% above or below
+     * the "real price" to emulate spread.
+     */
+    readonly spreadPerc: number;
+
     /**
      * The stock's ticker symbol
      */
@@ -85,34 +159,50 @@ export class Stock {
      */
     readonly totalShares: number;
 
-    constructor(name: string = "",
+    constructor(p: IConstructorParams = defaultConstructorParams) {
-                symbol: string = "",
+        this.name                   = p.name;
-                mv: number = 1,
+        this.symbol                 = p.symbol;
-                b: boolean = true,
+        this.price                  = toNumber(p.initPrice);
-                otlkMag: number = 0,
+        this.lastPrice              = this.price;
-                initPrice: number = 10e3,
+        this.playerShares           = 0;
-                marketCap: number = 1e12) {
+        this.playerAvgPx            = 0;
-        this.name               = name;
+        this.playerShortShares      = 0;
-        this.symbol             = symbol;
+        this.playerAvgShortPx       = 0;
-        this.price              = initPrice;
+        this.mv                     = toNumber(p.mv);
-        this.playerShares       = 0;
+        this.b                      = p.b;
-        this.playerAvgPx        = 0;
+        this.otlkMag                = p.otlkMag;
-        this.playerShortShares  = 0;
+        this.cap                    = getRandomInt(this.price * 1e3, this.price * 25e3);
-        this.playerAvgShortPx   = 0;
+        this.spreadPerc             = toNumber(p.spreadPerc);
-        this.mv                 = mv;
+        this.priceMovementPerc      = this.spreadPerc / (getRandomInt(10, 30) / 10);
-        this.b                  = b;
+        this.shareTxForMovement     = toNumber(p.shareTxForMovement);
-        this.otlkMag            = otlkMag;
+        this.shareTxUntilMovement   = this.shareTxForMovement;
-        this.cap                = getRandomInt(initPrice * 1e3, initPrice * 25e3);
 
         // Total shares is determined by market cap, and is rounded to nearest 100k
-        let totalSharesUnrounded: number = (marketCap / initPrice);
+        let totalSharesUnrounded: number = (p.marketCap / this.price);
         this.totalShares = Math.round(totalSharesUnrounded / 1e5) * 1e5;
 
         // Max Shares (Outstanding shares) is a percentage of total shares
         const outstandingSharePercentage: number = 0.2;
         this.maxShares = Math.round((this.totalShares * outstandingSharePercentage) / 1e5) * 1e5;
+    }
 
-        this.posTxtEl           = null;
+    changePrice(newPrice: number): void {
+        this.lastPrice = this.price;
+        this.price = newPrice;
+    }
+
+    /**
+     * Return the price at which YOUR stock is bought (market ask price). Accounts for spread
+     */
+    getAskPrice(): number {
+        return this.price * (1 + (this.spreadPerc / 100));
+    }
+
+    /**
+     * Return the price at which YOUR stock is sold (market bid price). Accounts for spread
+     */
+    getBidPrice(): number {
+        return this.price * (1 - (this.spreadPerc / 100));
     }
 
     /**

src/StockMarket/StockMarket.jsx

@@ -0,0 +1,625 @@
+import { Order } from "./Order";
+import { Stock } from "./Stock";
+import {
+    getBuyTransactionCost,
+    getSellTransactionGain,
+    processBuyTransactionPriceMovement,
+    processSellTransactionPriceMovement
+} from "./StockMarketHelpers";
+import {
+    getStockMarket4SDataCost,
+    getStockMarket4STixApiCost
+} from "./StockMarketCosts";
+import { InitStockMetadata } from "./data/InitStockMetadata";
+import { OrderTypes } from "./data/OrderTypes";
+import { PositionTypes } from "./data/PositionTypes";
+import { StockSymbols } from "./data/StockSymbols";
+import { StockMarketRoot } from "./ui/Root";
+
+import { CONSTANTS } from "../Constants";
+import { WorkerScript } from "../NetscriptWorker";
+import { Player } from "../Player";
+
+import { Page, routing } from ".././ui/navigationTracking";
+import { numeralWrapper } from ".././ui/numeralFormat";
+
+import { dialogBoxCreate } from "../../utils/DialogBox";
+import { Reviver } from "../../utils/JSONReviver";
+
+import React from "react";
+import ReactDOM from "react-dom";
+
+export function placeOrder(stock, shares, price, type, position, workerScript=null) {
+    var tixApi = (workerScript instanceof WorkerScript);
+    var order = new Order(stock, shares, price, type, position);
+    if (isNaN(shares) || isNaN(price)) {
+        if (tixApi) {
+            workerScript.scriptRef.log("ERROR: Invalid numeric value provided for either 'shares' or 'price' argument");
+        } else {
+            dialogBoxCreate("ERROR: Invalid numeric value provided for either 'shares' or 'price' argument");
+        }
+        return false;
+    }
+    if (StockMarket["Orders"] == null) {
+        const orders = {};
+        for (const name in StockMarket) {
+            if (StockMarket.hasOwnProperty(name)) {
+                const stk = StockMarket[name];
+                if (!(stk instanceof Stock)) { continue; }
+                orders[stk.symbol] = [];
+            }
+        }
+        StockMarket["Orders"] = orders;
+    }
+    StockMarket["Orders"][stock.symbol].push(order);
+    //Process to see if it should be executed immediately
+    processOrders(order.stock, order.type, order.pos);
+    displayStockMarketContent();
+    return true;
+}
+
+// Returns true if successfully cancels an order, false otherwise
+export function cancelOrder(params, workerScript=null) {
+    var tixApi = (workerScript instanceof WorkerScript);
+    if (StockMarket["Orders"] == null) {return false;}
+    if (params.order && params.order instanceof Order) {
+        var order = params.order;
+        // An 'Order' object is passed in
+        var stockOrders = StockMarket["Orders"][order.stock.symbol];
+        for (var i = 0; i < stockOrders.length; ++i) {
+            if (order == stockOrders[i]) {
+                stockOrders.splice(i, 1);
+                displayStockMarketContent();
+                return true;
+            }
+        }
+        return false;
+    } else if (params.stock && params.shares && params.price && params.type &&
+               params.pos && params.stock instanceof Stock) {
+        // Order properties are passed in. Need to look for the order
+        var stockOrders = StockMarket["Orders"][params.stock.symbol];
+        var orderTxt = params.stock.symbol + " - " + params.shares + " @ " +
+                       numeralWrapper.format(params.price, '$0.000a');
+        for (var i = 0; i < stockOrders.length; ++i) {
+            var order = stockOrders[i];
+            if (params.shares === order.shares &&
+                params.price === order.price &&
+                params.type === order.type &&
+                params.pos === order.pos) {
+                stockOrders.splice(i, 1);
+                displayStockMarketContent();
+                if (tixApi) {
+                    workerScript.scriptRef.log("Successfully cancelled order: " + orderTxt);
+                }
+                return true;
+            }
+        }
+        if (tixApi) {
+            workerScript.scriptRef.log("Failed to cancel order: " + orderTxt);
+        }
+        return false;
+    }
+    return false;
+}
+
+function executeOrder(order) {
+    var stock = order.stock;
+    var orderBook = StockMarket["Orders"];
+    var stockOrders = orderBook[stock.symbol];
+    var res = true;
+    console.log("Executing the following order:");
+    console.log(order);
+    switch (order.type) {
+        case OrderTypes.LimitBuy:
+        case OrderTypes.StopBuy:
+            if (order.pos === PositionTypes.Long) {
+                res = buyStock(order.stock, order.shares) && res;
+            } else if (order.pos === PositionTypes.Short) {
+                res = shortStock(order.stock, order.shares) && res;
+            }
+            break;
+        case OrderTypes.LimitSell:
+        case OrderTypes.StopSell:
+            if (order.pos === PositionTypes.Long) {
+                res = sellStock(order.stock, order.shares) && res;
+            } else if (order.pos === PositionTypes.Short) {
+                res = sellShort(order.stock, order.shares) && res;
+            }
+            break;
+    }
+    if (res) {
+        // Remove order from order book
+        for (var i = 0; i < stockOrders.length; ++i) {
+            if (order == stockOrders[i]) {
+                stockOrders.splice(i, 1);
+                displayStockMarketContent();
+                return;
+            }
+        }
+        console.log("ERROR: Could not find the following Order in Order Book: ");
+        console.log(order);
+    } else {
+        console.log("Order failed to execute");
+    }
+}
+
+export let StockMarket = {}; // Maps full stock name -> Stock object
+export let SymbolToStockMap = {}; // Maps symbol -> Stock object
+
+export function loadStockMarket(saveString) {
+    if (saveString === "") {
+        StockMarket = {};
+    } else {
+        StockMarket = JSON.parse(saveString, Reviver);
+    }
+}
+
+export function initStockMarket() {
+    for (const stk in StockMarket) {
+        if (StockMarket.hasOwnProperty(stk)) {
+            delete StockMarket[stk];
+        }
+    }
+
+    for (const metadata of InitStockMetadata) {
+        const name = metadata.name;
+        StockMarket[name] = new Stock(metadata);
+    }
+
+    const orders = {};
+    for (const name in StockMarket) {
+        if (StockMarket.hasOwnProperty(name)) {
+            const stock = StockMarket[name];
+            if (!(stock instanceof Stock)) { continue; }
+            orders[stock.symbol] = [];
+        }
+    }
+    StockMarket["Orders"] = orders;
+
+    StockMarket.storedCycles = 0;
+    StockMarket.lastUpdate = 0;
+}
+
+export function initSymbolToStockMap() {
+    for (const name in StockSymbols) {
+        if (StockSymbols.hasOwnProperty(name)) {
+            const stock = StockMarket[name];
+            if (stock == null) {
+                console.error(`Could not find Stock for ${name}`);
+                continue;
+            }
+            const symbol = StockSymbols[name];
+            SymbolToStockMap[symbol] = stock;
+        }
+    }
+}
+
+export function stockMarketCycle() {
+    for (var name in StockMarket) {
+        if (StockMarket.hasOwnProperty(name)) {
+            var stock = StockMarket[name];
+            if (!(stock instanceof Stock)) {continue;}
+            var thresh = 0.6;
+            if (stock.b) {thresh = 0.4;}
+            if (Math.random() < thresh) {
+                stock.b = !stock.b;
+            }
+        }
+    }
+}
+
+/**
+ * Attempt to buy a stock in the long position
+ * @param {Stock} stock - Stock to buy
+ * @param {number} shares - Number of shares to buy
+ * @param {WorkerScript} workerScript - If this is being called through Netscript
+ * @returns {boolean} - true if successful, false otherwise
+ */
+export function buyStock(stock, shares, workerScript=null) {
+    const tixApi = (workerScript instanceof WorkerScript);
+
+    // Validate arguments
+    shares = Math.round(shares);
+    if (shares == 0 || shares < 0) { return false; }
+    if (stock == null || isNaN(shares)) {
+        if (tixApi) {
+            workerScript.log(`ERROR: buyStock() failed due to invalid arguments`);
+        } else {
+            dialogBoxCreate("Failed to buy stock. This may be a bug, contact developer");
+        }
+
+        return false;
+    }
+
+    // Does player have enough money?
+    const totalPrice = getBuyTransactionCost(stock, shares, PositionTypes.Long);
+    if (Player.money.lt(totalPrice)) {
+        if (tixApi) {
+            workerScript.log(`ERROR: buyStock() failed because you do not have enough money to purchase this potiion. You need ${numeralWrapper.formatMoney(totalPrice + CONSTANTS.StockMarketCommission)}`);
+        } else {
+            dialogBoxCreate(`You do not have enough money to purchase this. You need ${numeralWrapper.formatMoney(totalPrice + CONSTANTS.StockMarketCommission)}`);
+        }
+
+        return false;
+    }
+
+    // Would this purchase exceed the maximum number of shares?
+    if (shares + stock.playerShares + stock.playerShortShares > stock.maxShares) {
+        if (tixApi) {
+            workerScript.log(`ERROR: buyStock() failed because purchasing this many shares would exceed ${stock.symbol}'s maximum number of shares`);
+        } else {
+            dialogBoxCreate(`You cannot purchase this many shares. ${stock.symbol} has a maximum of ${numeralWrapper.formatBigNumber(stock.maxShares)} shares.`);
+        }
+
+        return false;
+    }
+
+    const origTotal = stock.playerShares * stock.playerAvgPx;
+    Player.loseMoney(totalPrice);
+    const newTotal = origTotal + totalPrice;
+    stock.playerShares = Math.round(stock.playerShares + shares);
+    stock.playerAvgPx = newTotal / stock.playerShares;
+    processBuyTransactionPriceMovement(stock, shares, PositionTypes.Long);
+    displayStockMarketContent();
+
+    const resultTxt = `Bought ${numeralWrapper.format(shares, '0,0')} shares of ${stock.symbol} for ${numeralWrapper.formatMoney(totalPrice)}. ` +
+                      `Paid ${numeralWrapper.formatMoney(CONSTANTS.StockMarketCommission)} in commission fees.`
+    if (tixApi) {
+        if (workerScript.shouldLog("buyStock")) { workerScript.log(resultTxt); }
+    } else {
+        dialogBoxCreate(resultTxt);
+    }
+
+    return true;
+}
+
+/**
+ * Attempt to sell a stock in the long position
+ * @param {Stock} stock - Stock to sell
+ * @param {number} shares - Number of shares to sell
+ * @param {WorkerScript} workerScript - If this is being called through Netscript
+ * returns {boolean} - true if successfully sells given number of shares OR MAX owned, false otherwise
+ */
+export function sellStock(stock, shares, workerScript=null) {
+    const tixApi = (workerScript instanceof WorkerScript);
+
+    // Sanitize/Validate arguments
+    if (stock == null || shares < 0 || isNaN(shares)) {
+        if (tixApi) {
+            workerScript.log(`ERROR: sellStock() failed due to invalid arguments`);
+        } else {
+            dialogBoxCreate("Failed to sell stock. This is probably due to an invalid quantity. Otherwise, this may be a bug, contact developer");
+        }
+
+        return false;
+    }
+    shares = Math.round(shares);
+    if (shares > stock.playerShares) {shares = stock.playerShares;}
+    if (shares === 0) {return false;}
+
+    const gains = getSellTransactionGain(stock, shares, PositionTypes.Long);
+    let netProfit = gains - (stock.playerAvgPx * shares);
+    if (isNaN(netProfit)) { netProfit = 0; }
+    Player.gainMoney(gains);
+    Player.recordMoneySource(netProfit, "stock");
+    if (tixApi) {
+        workerScript.scriptRef.onlineMoneyMade += netProfit;
+        Player.scriptProdSinceLastAug += netProfit;
+    }
+
+    stock.playerShares = Math.round(stock.playerShares - shares);
+    if (stock.playerShares === 0) {
+        stock.playerAvgPx = 0;
+    }
+
+    processSellTransactionPriceMovement(stock, shares, PositionTypes.Long);
+    displayStockMarketContent();
+    const resultTxt = `Sold ${numeralWrapper.format(shares, '0,0')} shares of ${stock.symbol}. ` +
+                      `After commissions, you gained a total of ${numeralWrapper.formatMoney(gains)}.`;
+    if (tixApi) {
+         if (workerScript.shouldLog("sellStock")) { workerScript.log(resultTxt); }
+    } else {
+        dialogBoxCreate(resultTxt);
+    }
+
+    return true;
+}
+
+/**
+ * Attempt to buy a stock in the short position
+ * @param {Stock} stock - Stock to sell
+ * @param {number} shares - Number of shares to short
+ * @param {WorkerScript} workerScript - If this is being called through Netscript
+ * @returns {boolean} - true if successful, false otherwise
+ */
+export function shortStock(stock, shares, workerScript=null) {
+    const tixApi = (workerScript instanceof WorkerScript);
+
+    // Validate arguments
+    shares = Math.round(shares);
+    if (shares === 0 || shares < 0) { return false; }
+    if (stock == null || isNaN(shares)) {
+        if (tixApi) {
+            workerScript.log("ERROR: shortStock() failed because of invalid arguments.");
+        } else {
+            dialogBoxCreate("Failed to initiate a short position in a stock. This is probably " +
+                            "due to an invalid quantity. Otherwise, this may be a bug,  so contact developer");
+        }
+        return false;
+    }
+
+    // Does the player have enough money?
+    const totalPrice = getBuyTransactionCost(stock, shares, PositionTypes.Short);
+    if (Player.money.lt(totalPrice + CONSTANTS.StockMarketCommission)) {
+        if (tixApi) {
+            workerScript.log("ERROR: shortStock() failed because you do not have enough " +
+                             "money to purchase this short position. You need " +
+                             numeralWrapper.formatMoney(totalPrice + CONSTANTS.StockMarketCommission));
+        } else {
+            dialogBoxCreate("You do not have enough money to purchase this short position. You need " +
+                            numeralWrapper.formatMoney(totalPrice + CONSTANTS.StockMarketCommission));
+        }
+
+        return false;
+    }
+
+    // Would this purchase exceed the maximum number of shares?
+    if (shares + stock.playerShares + stock.playerShortShares > stock.maxShares) {
+        if (tixApi) {
+            workerScript.log(`ERROR: shortStock() failed because purchasing this many short shares would exceed ${stock.symbol}'s maximum number of shares.`);
+        } else {
+            dialogBoxCreate(`You cannot purchase this many shares. ${stock.symbol} has a maximum of ${stock.maxShares} shares.`);
+        }
+
+        return false;
+    }
+
+    const origTotal = stock.playerShortShares * stock.playerAvgShortPx;
+    Player.loseMoney(totalPrice + CONSTANTS.StockMarketCommission);
+    const newTotal = origTotal + totalPrice;
+    stock.playerShortShares = Math.round(stock.playerShortShares + shares);
+    stock.playerAvgShortPx = newTotal / stock.playerShortShares;
+    processBuyTransactionPriceMovement(stock, shares, PositionTypes.Short);
+    displayStockMarketContent();
+    const resultTxt = `Bought a short position of ${numeralWrapper.format(shares, '0,0')} shares of ${stock.symbol} ` +
+                      `for ${numeralWrapper.formatMoney(totalPrice)}. Paid ${numeralWrapper.formatMoney(CONSTANTS.StockMarketCommission)} ` +
+                      `in commission fees.`;
+    if (tixApi) {
+        if (workerScript.shouldLog("shortStock")) { workerScript.log(resultTxt); }
+    } else {
+        dialogBoxCreate(resultTxt);
+    }
+
+    return true;
+}
+
+/**
+ * Attempt to sell a stock in the short position
+ * @param {Stock} stock - Stock to sell
+ * @param {number} shares - Number of shares to sell
+ * @param {WorkerScript} workerScript - If this is being called through Netscript
+ * @returns {boolean} true if successfully sells given amount OR max owned, false otherwise
+ */
+export function sellShort(stock, shares, workerScript=null) {
+    const tixApi = (workerScript instanceof WorkerScript);
+
+    if (stock == null || isNaN(shares) || shares < 0) {
+        if (tixApi) {
+            workerScript.log("ERROR: sellShort() failed because of invalid arguments.");
+        } else {
+            dialogBoxCreate("Failed to sell a short position in a stock. This is probably " +
+                            "due to an invalid quantity. Otherwise, this may be a bug, so contact developer");
+        }
+
+        return false;
+    }
+    shares = Math.round(shares);
+    if (shares > stock.playerShortShares) {shares = stock.playerShortShares;}
+    if (shares === 0) {return false;}
+
+    const origCost = shares * stock.playerAvgShortPx;
+    const totalGain = getSellTransactionGain(stock, shares, PositionTypes.Short);
+    if (totalGain == null || isNaN(totalGain) || origCost == null) {
+        if (tixApi) {
+            workerScript.log(`Failed to sell short position in a stock. This is probably either due to invalid arguments, or a bug`);
+        } else {
+            dialogBoxCreate(`Failed to sell short position in a stock. This is probably either due to invalid arguments, or a bug`);
+        }
+
+        return false;
+    }
+    let profit = totalGain - origCost;
+    if (isNaN(profit)) { profit = 0; }
+    Player.gainMoney(totalGain);
+    Player.recordMoneySource(profit, "stock");
+    if (tixApi) {
+        workerScript.scriptRef.onlineMoneyMade += profit;
+        Player.scriptProdSinceLastAug += profit;
+    }
+
+    stock.playerShortShares = Math.round(stock.playerShortShares - shares);
+    if (stock.playerShortShares === 0) {
+        stock.playerAvgShortPx = 0;
+    }
+    processSellTransactionPriceMovement(stock, shares, PositionTypes.Short);
+    displayStockMarketContent();
+    const resultTxt = `Sold your short position of ${numeralWrapper.format(shares, '0,0')} shares of ${stock.symbol}. ` +
+                      `After commissions, you gained a total of ${numeralWrapper.formatMoney(totalGain)}`;
+    if (tixApi) {
+        if (workerScript.shouldLog("sellShort")) { workerScript.log(resultTxt); }
+    } else {
+        dialogBoxCreate(resultTxt);
+    }
+
+    return true;
+}
+
+export function processStockPrices(numCycles=1) {
+    if (StockMarket.storedCycles == null || isNaN(StockMarket.storedCycles)) { StockMarket.storedCycles = 0; }
+    StockMarket.storedCycles += numCycles;
+
+    // Stock Prices updated every 6 seconds on average. But if there are stored
+    // cycles they update 50% faster, so every 4 seconds
+    const msPerStockUpdate = 6e3;
+    const cyclesPerStockUpdate = msPerStockUpdate / CONSTANTS.MilliPerCycle;
+    if (StockMarket.storedCycles < cyclesPerStockUpdate) { return; }
+
+    const timeNow = new Date().getTime();
+    if (timeNow - StockMarket.lastUpdate < 4e3) { return; }
+
+    StockMarket.lastUpdate = timeNow;
+    StockMarket.storedCycles -= cyclesPerStockUpdate;
+
+    var v = Math.random();
+    for (var name in StockMarket) {
+        if (StockMarket.hasOwnProperty(name)) {
+            var stock = StockMarket[name];
+            if (!(stock instanceof Stock)) { continue; }
+            var av = (v * stock.mv) / 100;
+            if (isNaN(av)) {av = .02;}
+
+            var chc = 50;
+            if (stock.b) {
+                chc = (chc + stock.otlkMag) / 100;
+                if (isNaN(chc)) {chc = 0.5;}
+            } else {
+                chc = (chc - stock.otlkMag) / 100;
+                if (isNaN(chc)) {chc = 0.5;}
+            }
+            if (stock.price >= stock.cap) {
+                chc = 0.1; // "Soft Limit" on stock price. It could still go up but its unlikely
+                stock.b = false;
+            }
+
+            var c = Math.random();
+            if (c < chc) {
+                stock.price *= (1 + av);
+                processOrders(stock, OrderTypes.LimitBuy, PositionTypes.Short);
+                processOrders(stock, OrderTypes.LimitSell, PositionTypes.Long);
+                processOrders(stock, OrderTypes.StopBuy, PositionTypes.Long);
+                processOrders(stock, OrderTypes.StopSell, PositionTypes.Short);
+            } else {
+                stock.price /= (1 + av);
+                processOrders(stock, OrderTypes.LimitBuy, PositionTypes.Long);
+                processOrders(stock, OrderTypes.LimitSell, PositionTypes.Short);
+                processOrders(stock, OrderTypes.StopBuy, PositionTypes.Short);
+                processOrders(stock, OrderTypes.StopSell, PositionTypes.Long);
+            }
+
+            var otlkMagChange = stock.otlkMag * av;
+            if (stock.otlkMag <= 0.1) {
+                otlkMagChange = 1;
+            }
+            if (c < 0.5) {
+                stock.otlkMag += otlkMagChange;
+            } else {
+                stock.otlkMag -= otlkMagChange;
+            }
+            if (stock.otlkMag > 50) { stock.otlkMag = 50; } // Cap so the "forecast" is between 0 and 100
+            if (stock.otlkMag < 0) {
+                stock.otlkMag *= -1;
+                stock.b = !stock.b;
+            }
+        }
+    }
+
+    displayStockMarketContent();
+}
+
+//Checks and triggers any orders for the specified stock
+function processOrders(stock, orderType, posType) {
+    var orderBook = StockMarket["Orders"];
+    if (orderBook == null) {
+        var orders = {};
+        for (var name in StockMarket) {
+            if (StockMarket.hasOwnProperty(name)) {
+                var stock = StockMarket[name];
+                if (!(stock instanceof Stock)) {continue;}
+                orders[stock.symbol] = [];
+            }
+        }
+        StockMarket["Orders"] = orders;
+        return; //Newly created, so no orders to process
+    }
+    var stockOrders = orderBook[stock.symbol];
+    if (stockOrders == null || !(stockOrders.constructor === Array)) {
+        console.log("ERROR: Invalid Order book for " + stock.symbol + " in processOrders()");
+        stockOrders = [];
+        return;
+    }
+    for (var i = 0; i < stockOrders.length; ++i) {
+        var order = stockOrders[i];
+        if (order.type === orderType && order.pos === posType) {
+            switch(order.type) {
+                case OrderTypes.LimitBuy:
+                    if (order.pos === PositionTypes.Long && stock.price <= order.price) {
+                        executeOrder/*66*/(order);
+                    } else if (order.pos === PositionTypes.Short && stock.price >= order.price) {
+                        executeOrder/*66*/(order);
+                    }
+                    break;
+                case OrderTypes.LimitSell:
+                    if (order.pos === PositionTypes.Long && stock.price >= order.price) {
+                        executeOrder/*66*/(order);
+                    } else if (order.pos === PositionTypes.Short && stock.price <= order.price) {
+                        executeOrder/*66*/(order);
+                    }
+                    break;
+                case OrderTypes.StopBuy:
+                    if (order.pos === PositionTypes.Long && stock.price >= order.price) {
+                        executeOrder/*66*/(order);
+                    } else if (order.pos === PositionTypes.Short && stock.price <= order.price) {
+                        executeOrder/*66*/(order);
+                    }
+                    break;
+                case OrderTypes.StopSell:
+                    if (order.pos === PositionTypes.Long && stock.price <= order.price) {
+                        executeOrder/*66*/(order);
+                    } else if (order.pos === PositionTypes.Short && stock.price >= order.price) {
+                        executeOrder/*66*/(order);
+                    }
+                    break;
+                default:
+                    console.log("Invalid order type: " + order.type);
+                    return;
+            }
+        }
+    }
+}
+
+let stockMarketContainer = null;
+function setStockMarketContainer() {
+    stockMarketContainer = document.getElementById("stock-market-container");
+    document.removeEventListener("DOMContentLoaded", setStockMarketContainer);
+}
+
+document.addEventListener("DOMContentLoaded", setStockMarketContainer);
+
+
+function initStockMarketFnForReact() {
+    initStockMarket();
+    initSymbolToStockMap();
+}
+
+export function displayStockMarketContent() {
+    if (!routing.isOn(Page.StockMarket)) {
+        return;
+    }
+
+    if (stockMarketContainer instanceof HTMLElement) {
+        ReactDOM.render(
+            <StockMarketRoot
+                buyStockLong={buyStock}
+                buyStockShort={shortStock}
+                cancelOrder={cancelOrder}
+                initStockMarket={initStockMarketFnForReact}
+                p={Player}
+                placeOrder={placeOrder}
+                sellStockLong={sellStock}
+                sellStockShort={sellShort}
+                stockMarket={StockMarket}
+            />,
+            stockMarketContainer
+        )
+    }
+}

src/StockMarket/StockMarketHelpers.ts

@@ -0,0 +1,230 @@
+import { Stock } from "./Stock";
+import { PositionTypes } from "./data/PositionTypes";
+import { CONSTANTS } from "../Constants";
+
+/**
+ * Given a stock, calculates the amount by which the stock price is multiplied
+ * for an 'upward' price movement. This does not actually increase the stock's price,
+ * just calculates the multiplier
+ * @param {Stock} stock - Stock for price movement
+ * @returns {number | null} Number by which stock's price should be multiplied. Null for invalid args
+ */
+export function calculateIncreasingPriceMovement(stock: Stock): number | null {
+    if (!(stock instanceof Stock)) { return null; }
+
+    return (1 + (stock.priceMovementPerc / 100));
+}
+
+/**
+ * Given a stock, calculates the amount by which the stock price is multiplied
+ * for a "downward" price movement. This does not actually increase the stock's price,
+ * just calculates the multiplier
+ * @param {Stock} stock - Stock for price movement
+ * @returns {number | null} Number by which stock's price should be multiplied. Null for invalid args
+ */
+export function calculateDecreasingPriceMovement(stock: Stock): number | null {
+    if (!(stock instanceof Stock)) { return null; }
+
+    return (1 - (stock.priceMovementPerc / 100));
+}
+
+
+/**
+ * Calculate the total cost of a "buy" transaction. This accounts for spread,
+ * price movements, and commission.
+ * @param {Stock} stock - Stock being purchased
+ * @param {number} shares - Number of shares being transacted
+ * @param {PositionTypes} posType - Long or short position
+ * @returns {number | null} Total transaction cost. Returns null for an invalid transaction
+ */
+export function getBuyTransactionCost(stock: Stock, shares: number, posType: PositionTypes): number | null {
+    if (isNaN(shares) || shares <= 0 || !(stock instanceof Stock)) { return null; }
+
+    // Cap the 'shares' arg at the stock's maximum shares. This'll prevent
+    // hanging in the case when a really big number is passed in
+    shares = Math.min(shares, stock.maxShares);
+
+    const isLong = (posType === PositionTypes.Long);
+
+    // If the number of shares doesn't trigger a price movement, its a simple calculation
+    if (shares <= stock.shareTxUntilMovement) {
+        if (isLong) {
+            return (shares * stock.getAskPrice()) + CONSTANTS.StockMarketCommission;
+        } else {
+            return (shares * stock.getBidPrice()) + CONSTANTS.StockMarketCommission;
+        }
+    }
+
+    // Calculate how many iterations of price changes we need to account for
+    let remainingShares = shares - stock.shareTxUntilMovement;
+    let numIterations = 1 + Math.ceil(remainingShares / stock.shareTxForMovement);
+
+
+
+    // The initial cost calculation takes care of the first "iteration"
+    let currPrice = isLong ? stock.getAskPrice() : stock.getBidPrice();
+    let totalCost = (stock.shareTxUntilMovement * currPrice);
+
+    function processPriceMovement() {
+        if (isLong) {
+            currPrice *= calculateIncreasingPriceMovement(stock)!;
+        } else {
+            currPrice *= calculateDecreasingPriceMovement(stock)!;
+        }
+    }
+
+    for (let i = 1; i < numIterations; ++i) {
+        processPriceMovement();
+
+        const amt = Math.min(stock.shareTxForMovement, remainingShares);
+        totalCost += (amt * currPrice);
+        remainingShares -= amt;
+    }
+
+    return totalCost + CONSTANTS.StockMarketCommission;
+}
+
+/**
+ * Processes a buy transaction's resulting price movement.
+ * @param {Stock} stock - Stock being purchased
+ * @param {number} shares - Number of shares being transacted
+ * @param {PositionTypes} posType - Long or short position
+ */
+export function processBuyTransactionPriceMovement(stock: Stock, shares: number, posType: PositionTypes): void {
+    if (isNaN(shares) || shares <= 0 || !(stock instanceof Stock)) { return; }
+
+    // Cap the 'shares' arg at the stock's maximum shares. This'll prevent
+    // hanging in the case when a really big number is passed in
+    shares = Math.min(shares, stock.maxShares);
+
+    const isLong = (posType === PositionTypes.Long);
+
+    // If the number of shares doesn't trigger a price movement, just return
+    if (shares <= stock.shareTxUntilMovement) {
+        stock.shareTxUntilMovement -= shares;
+        return;
+    }
+
+    // Calculate how many iterations of price changes we need to account for
+    let remainingShares = shares - stock.shareTxUntilMovement;
+    let numIterations = 1 + Math.ceil(remainingShares / stock.shareTxForMovement);
+
+    let currPrice = stock.price;
+    function processPriceMovement() {
+        if (isLong) {
+            currPrice *= calculateIncreasingPriceMovement(stock)!;
+        } else {
+            currPrice *= calculateDecreasingPriceMovement(stock)!;
+        }
+    }
+
+    for (let i = 1; i < numIterations; ++i) {
+        processPriceMovement();
+    }
+
+    stock.price = currPrice;
+    stock.shareTxUntilMovement = stock.shareTxForMovement - ((shares - stock.shareTxUntilMovement) % stock.shareTxForMovement);
+}
+
+/**
+ * Calculate the TOTAL amount of money gained from a sale (NOT net profit). This accounts
+ * for spread, price movements, and commission.
+ * @param {Stock} stock - Stock being sold
+ * @param {number} shares - Number of sharse being transacted
+ * @param {PositionTypes} posType - Long or short position
+ * @returns {number | null} Amount of money gained from transaction. Returns null for an invalid transaction
+ */
+export function getSellTransactionGain(stock: Stock, shares: number, posType: PositionTypes): number | null {
+    if (isNaN(shares) || shares <= 0 || !(stock instanceof Stock)) { return null; }
+
+    // Cap the 'shares' arg at the stock's maximum shares. This'll prevent
+    // hanging in the case when a really big number is passed in
+    shares = Math.min(shares, stock.maxShares);
+
+    const isLong = (posType === PositionTypes.Long);
+
+    // If the number of shares doesn't trigger a price mvoement, its a simple calculation
+    if (shares <= stock.shareTxUntilMovement) {
+        if (isLong) {
+            return (shares * stock.getBidPrice()) - CONSTANTS.StockMarketCommission;
+        } else {
+            // Calculating gains for a short position requires calculating the profit made
+            const origCost = shares * stock.playerAvgShortPx;
+            const profit = ((stock.playerAvgShortPx - stock.getAskPrice()) * shares) - CONSTANTS.StockMarketCommission;
+
+            return origCost + profit;
+        }
+    }
+
+    // Calculate how many iterations of price changes we need to account for
+    let remainingShares = shares - stock.shareTxUntilMovement;
+    let numIterations = 1 + Math.ceil(remainingShares / stock.shareTxForMovement);
+
+    // Helper function to calculate gain for a single iteration
+    function calculateGain(thisPrice: number, thisShares: number) {
+        if (isLong) {
+            return thisShares * thisPrice;
+        } else {
+            const origCost = thisShares * stock.playerAvgShortPx;
+            const profit = ((stock.playerAvgShortPx - thisPrice) * thisShares);
+
+            return origCost + profit;
+        }
+    }
+
+    // The initial cost calculation takes care of the first "iteration"
+    let currPrice = isLong ? stock.getBidPrice() : stock.getAskPrice();
+    let totalGain = calculateGain(currPrice, stock.shareTxUntilMovement);
+    for (let i = 1; i < numIterations; ++i) {
+        // Price movement
+        if (isLong) {
+            currPrice *= calculateDecreasingPriceMovement(stock)!;
+        } else {
+            currPrice *= calculateIncreasingPriceMovement(stock)!;
+        }
+
+        const amt = Math.min(stock.shareTxForMovement, remainingShares);
+        totalGain += calculateGain(currPrice, amt);
+        remainingShares -= amt;
+    }
+
+    return totalGain - CONSTANTS.StockMarketCommission;
+}
+
+/**
+ * Processes a sell transaction's resulting price movement
+ * @param {Stock} stock - Stock being sold
+ * @param {number} shares - Number of sharse being transacted
+ * @param {PositionTypes} posType - Long or short position
+ */
+export function processSellTransactionPriceMovement(stock: Stock, shares: number, posType: PositionTypes): void {
+    if (isNaN(shares) || shares <= 0 || !(stock instanceof Stock)) { return; }
+
+    // Cap the 'shares' arg at the stock's maximum shares. This'll prevent
+    // hanging in the case when a really big number is passed in
+    shares = Math.min(shares, stock.maxShares);
+
+    const isLong = (posType === PositionTypes.Long);
+
+    if (shares <= stock.shareTxUntilMovement) {
+        stock.shareTxUntilMovement -= shares;
+        return;
+    }
+
+    // Calculate how many iterations of price changes we need to accoutn for
+    let remainingShares = shares - stock.shareTxUntilMovement;
+    let numIterations = 1 + Math.ceil(remainingShares / stock.shareTxForMovement);
+
+    let currPrice = stock.price;
+    for (let i = 1; i < numIterations; ++i) {
+        // Price movement
+        if (isLong) {
+            currPrice *= calculateDecreasingPriceMovement(stock)!;
+        } else {
+            currPrice *= calculateIncreasingPriceMovement(stock)!;
+        }
+    }
+
+    stock.price = currPrice;
+    stock.shareTxUntilMovement = stock.shareTxForMovement - ((shares - stock.shareTxUntilMovement) % stock.shareTxForMovement);
+}

src/StockMarket/data/InitStockMetadata.ts

@@ -0,0 +1,873 @@
+/**
+ * Initialization metadata for all Stocks. This is used to generate the
+ * stock parameter values upon a reset
+ *
+ * Some notes:
+ *  - Megacorporations have better otlkMags
+ *  - Higher volatility -> Bigger spread
+ *  - Lower price -> Bigger spread
+ *  - Share tx required for movement used for balancing
+ */
+import { StockSymbols } from "./StockSymbols";
+import { IConstructorParams } from "../Stock";
+import { LocationName } from "../../Locations/data/LocationNames";
+
+export const InitStockMetadata: IConstructorParams[] = [
+    {
+        b: true,
+        initPrice: {
+            max: 28e3,
+            min: 17e3,
+        },
+        marketCap: 2.4e12,
+        mv: {
+            divisor: 100,
+            max: 50,
+            min: 40,
+        },
+        name: LocationName.AevumECorp,
+        otlkMag: 19,
+        spreadPerc: {
+            divisor: 10,
+            max: 5,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.AevumECorp],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 34e3,
+            min: 24e3,
+        },
+        marketCap: 2.4e12,
+        mv: {
+            divisor: 100,
+            max: 50,
+            min: 40,
+        },
+        name: LocationName.Sector12MegaCorp,
+        otlkMag: 19,
+        spreadPerc: {
+            divisor: 10,
+            max: 5,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.Sector12MegaCorp],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 25e3,
+            min: 12e3,
+        },
+        marketCap: 1.6e12,
+        mv: {
+            divisor: 100,
+            max: 80,
+            min: 70,
+        },
+        name: LocationName.Sector12BladeIndustries,
+        otlkMag: 13,
+        spreadPerc: {
+            divisor: 10,
+            max: 6,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.Sector12BladeIndustries],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 25e3,
+            min: 10e3,
+        },
+        marketCap: 1.5e12,
+        mv: {
+            divisor: 100,
+            max: 75,
+            min: 65,
+        },
+        name: LocationName.AevumClarkeIncorporated,
+        otlkMag: 12,
+        spreadPerc: {
+            divisor: 10,
+            max: 5,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.AevumClarkeIncorporated],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 43e3,
+            min: 32e3,
+        },
+        marketCap: 1.8e12,
+        mv: {
+            divisor: 100,
+            max: 70,
+            min: 60,
+        },
+        name: LocationName.VolhavenOmniTekIncorporated,
+        otlkMag: 12,
+        spreadPerc: {
+            divisor: 10,
+            max: 6,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.VolhavenOmniTekIncorporated],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 80e3,
+            min: 50e3,
+        },
+        marketCap: 2e12,
+        mv: {
+            divisor: 100,
+            max: 110,
+            min: 100,
+        },
+        name: LocationName.Sector12FourSigma,
+        otlkMag: 17,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.Sector12FourSigma],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 28e3,
+            min: 16e3,
+        },
+        marketCap: 1.9e12,
+        mv: {
+            divisor: 100,
+            max: 85,
+            min: 75,
+        },
+        name: LocationName.ChongqingKuaiGongInternational,
+        otlkMag: 10,
+        spreadPerc: {
+            divisor: 10,
+            max: 7,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.ChongqingKuaiGongInternational],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 36e3,
+            min: 29e3,
+        },
+        marketCap: 2e12,
+        mv: {
+            divisor: 100,
+            max: 130,
+            min: 120,
+        },
+        name: LocationName.AevumFulcrumTechnologies,
+        otlkMag: 16,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 1,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.AevumFulcrumTechnologies],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 25e3,
+            min: 20e3,
+        },
+        marketCap: 1.2e12,
+        mv: {
+            divisor: 100,
+            max: 90,
+            min: 80,
+        },
+        name: LocationName.IshimaStormTechnologies,
+        otlkMag: 7,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 2,
+        },
+        shareTxForMovement: {
+            max: 36e3,
+            min: 12e3,
+        },
+        symbol: StockSymbols[LocationName.IshimaStormTechnologies],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 19e3,
+            min: 6e3,
+        },
+        marketCap: 900e9,
+        mv: {
+            divisor: 100,
+            max: 70,
+            min: 60,
+        },
+        name: LocationName.NewTokyoDefComm,
+        otlkMag: 10,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 2,
+        },
+        shareTxForMovement: {
+            max: 36e3,
+            min: 12e3,
+        },
+        symbol: StockSymbols[LocationName.NewTokyoDefComm],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 18e3,
+            min: 10e3,
+        },
+        marketCap: 825e9,
+        mv: {
+            divisor: 100,
+            max: 65,
+            min: 55,
+        },
+        name: LocationName.VolhavenHeliosLabs,
+        otlkMag: 9,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 2,
+        },
+        shareTxForMovement: {
+            max: 36e3,
+            min: 12e3,
+        },
+        symbol: StockSymbols[LocationName.VolhavenHeliosLabs],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 14e3,
+            min: 8e3,
+        },
+        marketCap: 1e12,
+        mv: {
+            divisor: 100,
+            max: 80,
+            min: 70,
+        },
+        name: LocationName.NewTokyoVitaLife,
+        otlkMag: 7,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 2,
+        },
+        shareTxForMovement: {
+            max: 36e3,
+            min: 12e3,
+        },
+        symbol: StockSymbols[LocationName.NewTokyoVitaLife],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 24e3,
+            min: 12e3,
+        },
+        marketCap: 800e9,
+        mv: {
+            divisor: 100,
+            max: 70,
+            min: 60,
+        },
+        name: LocationName.Sector12IcarusMicrosystems,
+        otlkMag: 7.5,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 3,
+        },
+        shareTxForMovement: {
+            max: 36e3,
+            min: 12e3,
+        },
+        symbol: StockSymbols[LocationName.Sector12IcarusMicrosystems],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 29e3,
+            min: 16e3,
+        },
+        marketCap: 900e9,
+        mv: {
+            divisor: 100,
+            max: 60,
+            min: 50,
+        },
+        name: LocationName.Sector12UniversalEnergy,
+        otlkMag: 10,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 2,
+        },
+        shareTxForMovement: {
+            max: 36e3,
+            min: 12e3,
+        },
+        symbol: StockSymbols[LocationName.Sector12UniversalEnergy],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 17e3,
+            min: 8e3,
+        },
+        marketCap: 640e9,
+        mv: {
+            divisor: 100,
+            max: 65,
+            min: 55,
+        },
+        name: LocationName.AevumAeroCorp,
+        otlkMag: 6,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 3,
+        },
+        shareTxForMovement: {
+            max: 42e3,
+            min: 14e3,
+        },
+        symbol: StockSymbols[LocationName.AevumAeroCorp],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 15e3,
+            min: 6e3,
+        },
+        marketCap: 600e9,
+        mv: {
+            divisor: 100,
+            max: 75,
+            min: 65,
+        },
+        name: LocationName.VolhavenOmniaCybersystems,
+        otlkMag: 4.5,
+        spreadPerc: {
+            divisor: 10,
+            max: 11,
+            min: 4,
+        },
+        shareTxForMovement: {
+            max: 42e3,
+            min: 14e3,
+        },
+        symbol: StockSymbols[LocationName.VolhavenOmniaCybersystems],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 28e3,
+            min: 14e3,
+        },
+        marketCap: 705e9,
+        mv: {
+            divisor: 100,
+            max: 80,
+            min: 70,
+        },
+        name: LocationName.ChongqingSolarisSpaceSystems,
+        otlkMag: 8.5,
+        spreadPerc: {
+            divisor: 10,
+            max: 12,
+            min: 4,
+        },
+        shareTxForMovement: {
+            max: 42e3,
+            min: 14e3,
+        },
+        symbol: StockSymbols[LocationName.ChongqingSolarisSpaceSystems],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 30e3,
+            min: 12e3,
+        },
+        marketCap: 695e9,
+        mv: {
+            divisor: 100,
+            max: 65,
+            min: 55,
+        },
+        name: LocationName.NewTokyoGlobalPharmaceuticals,
+        otlkMag: 10.5,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 4,
+        },
+        shareTxForMovement: {
+            max: 42e3,
+            min: 14e3,
+        },
+        symbol: StockSymbols[LocationName.NewTokyoGlobalPharmaceuticals],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 27e3,
+            min: 15e3,
+        },
+        marketCap: 600e9,
+        mv: {
+            divisor: 100,
+            max: 80,
+            min: 70,
+        },
+        name: LocationName.IshimaNovaMedical,
+        otlkMag: 5,
+        spreadPerc: {
+            divisor: 10,
+            max: 11,
+            min: 4,
+        },
+        shareTxForMovement: {
+            max: 42e3,
+            min: 14e3,
+        },
+        symbol: StockSymbols[LocationName.IshimaNovaMedical],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 8.5e3,
+            min: 4e3,
+        },
+        marketCap: 450e9,
+        mv: {
+            divisor: 100,
+            max: 260,
+            min: 240,
+        },
+        name: LocationName.AevumWatchdogSecurity,
+        otlkMag: 1.5,
+        spreadPerc: {
+            divisor: 10,
+            max: 12,
+            min: 5,
+        },
+        shareTxForMovement: {
+            max: 18e3,
+            min: 4e3,
+        },
+        symbol: StockSymbols[LocationName.AevumWatchdogSecurity],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 8e3,
+            min: 4.5e3,
+        },
+        marketCap: 300e9,
+        mv: {
+            divisor: 100,
+            max: 135,
+            min: 115,
+        },
+        name: LocationName.VolhavenLexoCorp,
+        otlkMag: 6,
+        spreadPerc: {
+            divisor: 10,
+            max: 12,
+            min: 5,
+        },
+        shareTxForMovement: {
+            max: 36e3,
+            min: 12e3,
+        },
+        symbol: StockSymbols[LocationName.VolhavenLexoCorp],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 7e3,
+            min: 2e3,
+        },
+        marketCap: 180e9,
+        mv: {
+            divisor: 100,
+            max: 70,
+            min: 50,
+        },
+        name: LocationName.AevumRhoConstruction,
+        otlkMag: 1,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 3,
+        },
+        shareTxForMovement: {
+            max: 42e3,
+            min: 20e3,
+        },
+        symbol: StockSymbols[LocationName.AevumRhoConstruction],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 8.5e3,
+            min: 4e3,
+        },
+        marketCap: 240e9,
+        mv: {
+            divisor: 100,
+            max: 205,
+            min: 175,
+        },
+        name: LocationName.Sector12AlphaEnterprises,
+        otlkMag: 10,
+        spreadPerc: {
+            divisor: 10,
+            max: 16,
+            min: 5,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.Sector12AlphaEnterprises],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 8e3,
+            min: 3e3,
+        },
+        marketCap: 200e9,
+        mv: {
+            divisor: 100,
+            max: 170,
+            min: 150,
+        },
+        name: LocationName.VolhavenSysCoreSecurities,
+        otlkMag: 3,
+        spreadPerc: {
+            divisor: 10,
+            max: 12,
+            min: 5,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.VolhavenSysCoreSecurities],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 6e3,
+            min: 1e3,
+        },
+        marketCap: 185e9,
+        mv: {
+            divisor: 100,
+            max: 100,
+            min: 80,
+        },
+        name: LocationName.VolhavenCompuTek,
+        otlkMag: 4,
+        spreadPerc: {
+            divisor: 10,
+            max: 12,
+            min: 4,
+        },
+        shareTxForMovement: {
+            max: 42e3,
+            min: 20e3,
+        },
+        symbol: StockSymbols[LocationName.VolhavenCompuTek],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 5e3,
+            min: 1e3,
+        },
+        marketCap: 58e9,
+        mv: {
+            divisor: 100,
+            max: 430,
+            min: 400,
+        },
+        name: LocationName.AevumNetLinkTechnologies,
+        otlkMag: 1,
+        spreadPerc: {
+            divisor: 10,
+            max: 20,
+            min: 5,
+        },
+        shareTxForMovement: {
+            max: 18e3,
+            min: 6e3,
+        },
+        symbol: StockSymbols[LocationName.AevumNetLinkTechnologies],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 8e3,
+            min: 1e3,
+        },
+        marketCap: 60e9,
+        mv: {
+            divisor: 100,
+            max: 110,
+            min: 90,
+        },
+        name: LocationName.IshimaOmegaSoftware,
+        otlkMag: 0.5,
+        spreadPerc: {
+            divisor: 10,
+            max: 13,
+            min: 4,
+        },
+        shareTxForMovement: {
+            max: 30e3,
+            min: 10e3,
+        },
+        symbol: StockSymbols[LocationName.IshimaOmegaSoftware],
+    },
+
+    {
+        b: false,
+        initPrice: {
+            max: 4.5e3,
+            min: 500,
+        },
+        marketCap: 45e9,
+        mv: {
+            divisor: 100,
+            max: 80,
+            min: 70,
+        },
+        name: LocationName.Sector12FoodNStuff,
+        otlkMag: 1,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 6,
+        },
+        shareTxForMovement: {
+            max: 60e3,
+            min: 20e3,
+        },
+        symbol: StockSymbols[LocationName.Sector12FoodNStuff],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 3.5e3,
+            min: 1.5e3,
+        },
+        marketCap: 30e9,
+        mv: {
+            divisor: 100,
+            max: 300,
+            min: 260,
+        },
+        name: "Sigma Cosmetics",
+        otlkMag: 0,
+        spreadPerc: {
+            divisor: 10,
+            max: 14,
+            min: 6,
+        },
+        shareTxForMovement: {
+            max: 28e3,
+            min: 8e3,
+        },
+        symbol: StockSymbols["Sigma Cosmetics"],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 1.5e3,
+            min: 250,
+        },
+        marketCap: 42e9,
+        mv: {
+            divisor: 100,
+            max: 400,
+            min: 360,
+        },
+        name: "Joes Guns",
+        otlkMag: 1,
+        spreadPerc: {
+            divisor: 10,
+            max: 14,
+            min: 6,
+        },
+        shareTxForMovement: {
+            max: 21e3,
+            min: 6e3,
+        },
+        symbol: StockSymbols["Joes Guns"],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 1.5e3,
+            min: 250,
+        },
+        marketCap: 100e9,
+        mv: {
+            divisor: 100,
+            max: 175,
+            min: 120,
+        },
+        name: "Catalyst Ventures",
+        otlkMag: 13.5,
+        spreadPerc: {
+            divisor: 10,
+            max: 14,
+            min: 5,
+        },
+        shareTxForMovement: {
+            max: 24e3,
+            min: 8e3,
+        },
+        symbol: StockSymbols["Catalyst Ventures"],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 30e3,
+            min: 15e3,
+        },
+        marketCap: 360e9,
+        mv: {
+            divisor: 100,
+            max: 80,
+            min: 70,
+        },
+        name: "Microdyne Technologies",
+        otlkMag: 8,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 3,
+        },
+        shareTxForMovement: {
+            max: 72e3,
+            min: 30e3,
+        },
+        symbol: StockSymbols["Microdyne Technologies"],
+    },
+
+    {
+        b: true,
+        initPrice: {
+            max: 24e3,
+            min: 12e3,
+        },
+        marketCap: 420e9,
+        mv: {
+            divisor: 100,
+            max: 70,
+            min: 50,
+        },
+        name: "Titan Laboratories",
+        otlkMag: 11,
+        spreadPerc: {
+            divisor: 10,
+            max: 10,
+            min: 2,
+        },
+        shareTxForMovement: {
+            max: 72e3,
+            min: 30e3,
+        },
+        symbol: StockSymbols["Titan Laboratories"],
+    },
+];

src/StockMarket/data/OrderTypes.ts

@@ -0,0 +1,6 @@
+export enum OrderTypes {
+    LimitBuy = "Limit Buy Order",
+    LimitSell = "Limit Sell Order",
+    StopBuy = "Stop Buy Order",
+    StopSell = "Stop Sell Order"
+}

src/StockMarket/data/PositionTypes.ts

@@ -0,0 +1,4 @@
+export enum PositionTypes {
+    Long = "L",
+    Short = "S"
+}

src/StockMarket/data/StockSymbols.ts

@@ -0,0 +1,41 @@
+import { IMap } from "../../types";
+import { LocationName } from "../../Locations/data/LocationNames";
+
+export const StockSymbols: IMap<string> = {};
+
+// Stocks for companies at which you can work
+StockSymbols[LocationName.AevumECorp]                      = "ECP";
+StockSymbols[LocationName.Sector12MegaCorp]                = "MGCP";
+StockSymbols[LocationName.Sector12BladeIndustries]         = "BLD";
+StockSymbols[LocationName.AevumClarkeIncorporated]         = "CLRK";
+StockSymbols[LocationName.VolhavenOmniTekIncorporated]     = "OMTK";
+StockSymbols[LocationName.Sector12FourSigma]               = "FSIG";
+StockSymbols[LocationName.ChongqingKuaiGongInternational]  = "KGI";
+StockSymbols[LocationName.AevumFulcrumTechnologies]        = "FLCM";
+StockSymbols[LocationName.IshimaStormTechnologies]         = "STM";
+StockSymbols[LocationName.NewTokyoDefComm]                 = "DCOMM";
+StockSymbols[LocationName.VolhavenHeliosLabs]              = "HLS";
+StockSymbols[LocationName.NewTokyoVitaLife]                = "VITA";
+StockSymbols[LocationName.Sector12IcarusMicrosystems]      = "ICRS";
+StockSymbols[LocationName.Sector12UniversalEnergy]         = "UNV";
+StockSymbols[LocationName.AevumAeroCorp]                   = "AERO";
+StockSymbols[LocationName.VolhavenOmniaCybersystems]       = "OMN";
+StockSymbols[LocationName.ChongqingSolarisSpaceSystems]    = "SLRS";
+StockSymbols[LocationName.NewTokyoGlobalPharmaceuticals]   = "GPH";
+StockSymbols[LocationName.IshimaNovaMedical]               = "NVMD";
+StockSymbols[LocationName.AevumWatchdogSecurity]           = "WDS";
+StockSymbols[LocationName.VolhavenLexoCorp]                = "LXO";
+StockSymbols[LocationName.AevumRhoConstruction]            = "RHOC";
+StockSymbols[LocationName.Sector12AlphaEnterprises]        = "APHE";
+StockSymbols[LocationName.VolhavenSysCoreSecurities]       = "SYSC";
+StockSymbols[LocationName.VolhavenCompuTek]                = "CTK";
+StockSymbols[LocationName.AevumNetLinkTechnologies]        = "NTLK";
+StockSymbols[LocationName.IshimaOmegaSoftware]             = "OMGA";
+StockSymbols[LocationName.Sector12FoodNStuff]              = "FNS";
+
+// Stocks for other companies
+StockSymbols["Sigma Cosmetics"]                         = "SGC";
+StockSymbols["Joes Guns"]                               = "JGN";
+StockSymbols["Catalyst Ventures"]                       = "CTYS";
+StockSymbols["Microdyne Technologies"]                  = "MDYN";
+StockSymbols["Titan Laboratories"]                      = "TITN";

src/StockMarket/data/TickerHeaderFormatData.ts

@@ -0,0 +1,11 @@
+import { StockSymbols } from "./StockSymbols";
+
+export const TickerHeaderFormatData = {
+    longestName: 0,
+    longestSymbol: 0,
+}
+
+for (const key in StockSymbols) {
+    TickerHeaderFormatData.longestName = Math.max(key.length, TickerHeaderFormatData.longestName);
+    TickerHeaderFormatData.longestSymbol = Math.max(StockSymbols[key].length, TickerHeaderFormatData.longestSymbol);
+}

src/StockMarket/ui/InfoAndPurchases.tsx

@@ -0,0 +1,226 @@
+/**
+ * React component for the Stock Market UI. This component displays
+ * general information about the stock market, buttons for the various purchases,
+ * and a link to the documentation (Investopedia)
+ */
+import * as React from "react";
+
+import {
+    getStockMarket4SDataCost,
+    getStockMarket4STixApiCost
+} from "../StockMarketCosts";
+
+import { CONSTANTS } from "../../Constants";
+import { IPlayer } from "../../PersonObjects/IPlayer";
+import { numeralWrapper } from "../../ui/numeralFormat";
+import { StdButton } from "../../ui/React/StdButton";
+import { StdButtonPurchased } from "../../ui/React/StdButtonPurchased";
+
+import { dialogBoxCreate } from "../../../utils/DialogBox";
+
+type IProps = {
+    initStockMarket: () => void;
+    p: IPlayer;
+    rerender: () => void;
+}
+
+const blockStyleMarkup = {
+    display: "block",
+}
+
+export class InfoAndPurchases extends React.Component<IProps, any> {
+    constructor(props: IProps) {
+        super(props);
+
+        this.handleClick4SMarketDataHelpTip = this.handleClick4SMarketDataHelpTip.bind(this);
+        this.purchaseWseAccount = this.purchaseWseAccount.bind(this);
+        this.purchaseTixApiAccess = this.purchaseTixApiAccess.bind(this);
+        this.purchase4SMarketData = this.purchase4SMarketData.bind(this);
+        this.purchase4SMarketDataTixApiAccess = this.purchase4SMarketDataTixApiAccess.bind(this);
+    }
+
+    handleClick4SMarketDataHelpTip() {
+        dialogBoxCreate(
+            "Access to the 4S Market Data feed will display two additional pieces " +
+            "of information about each stock: Price Forecast & Volatility<br><br>" +
+            "Price Forecast indicates the probability the stock has of increasing or " +
+            "decreasing. A '+' forecast means the stock has a higher chance of increasing "  +
+            "than decreasing, and a '-' means the opposite. The number of '+/-' symbols " +
+            "is used to illustrate the magnitude of these probabilities. For example, " +
+            "'+++' means that the stock has a significantly higher chance of increasing " +
+            "than decreasing, while '+' means that the stock only has a slightly higher chance " +
+            "of increasing than decreasing.<br><br>"  +
+            "Volatility represents the maximum percentage by which a stock's price " +
+            "can change every tick (a tick occurs every few seconds while the game " +
+            "is running).<br><br>" +
+            "A stock's price forecast can change over time. This is also affected by volatility. " +
+            "The more volatile a stock is, the more its price forecast will change."
+        );
+    }
+
+    purchaseWseAccount() {
+        if (this.props.p.hasWseAccount) { return; }
+        if (!this.props.p.canAfford(CONSTANTS.WSEAccountCost)) { return; }
+        this.props.p.hasWseAccount = true;
+        this.props.initStockMarket();
+        this.props.p.loseMoney(CONSTANTS.WSEAccountCost);
+        this.props.rerender();
+    }
+
+    purchaseTixApiAccess() {
+        if (this.props.p.hasTixApiAccess) { return; }
+        if (!this.props.p.canAfford(CONSTANTS.TIXAPICost)) { return; }
+        this.props.p.hasTixApiAccess = true;
+        this.props.p.loseMoney(CONSTANTS.TIXAPICost);
+        this.props.rerender();
+    }
+
+    purchase4SMarketData() {
+        if (this.props.p.has4SData) { return; }
+        if (!this.props.p.canAfford(getStockMarket4SDataCost())) { return; }
+        this.props.p.has4SData = true;
+        this.props.p.loseMoney(getStockMarket4SDataCost());
+        this.props.rerender();
+    }
+
+    purchase4SMarketDataTixApiAccess() {
+        if (this.props.p.has4SDataTixApi) { return; }
+        if (!this.props.p.canAfford(getStockMarket4STixApiCost())) { return; }
+        this.props.p.has4SDataTixApi = true;
+        this.props.p.loseMoney(getStockMarket4STixApiCost());
+        this.props.rerender();
+    }
+
+    renderPurchaseWseAccountButton(): React.ReactElement {
+        if (this.props.p.hasWseAccount) {
+            return (
+                <StdButtonPurchased text={"WSE Account - Purchased"} />
+            )
+        } else {
+            const cost = CONSTANTS.WSEAccountCost;
+            return (
+                <StdButton
+                    disabled={!this.props.p.canAfford(cost)}
+                    onClick={this.purchaseWseAccount}
+                    text={`Buy WSE Account - ${numeralWrapper.formatMoney(cost)}`}
+                />
+            )
+        }
+    }
+
+    renderPurchaseTixApiAccessButton(): React.ReactElement {
+        if (this.props.p.hasTixApiAccess) {
+            return (
+                <StdButtonPurchased text={"TIX API Access - Purchased"} />
+            )
+        } else {
+            const cost = CONSTANTS.TIXAPICost;
+            return (
+                <StdButton
+                    disabled={!this.props.p.canAfford(cost)}
+                    onClick={this.purchaseTixApiAccess}
+                    style={blockStyleMarkup}
+                    text={`Buy Trade Information eXchange (TIX) API Access - ${numeralWrapper.formatMoney(cost)}`}
+                />
+            )
+        }
+    }
+
+    renderPurchase4SMarketDataButton(): React.ReactElement {
+        if (this.props.p.has4SData) {
+            return (
+                <StdButtonPurchased
+                    text={"4S Market Data - Purchased"}
+                    tooltip={"Lets you view additional pricing and volatility information about stocks"}
+                />
+            )
+        } else {
+            const cost = getStockMarket4SDataCost();
+            return (
+                <StdButton
+                    disabled={!this.props.p.canAfford(cost)}
+                    onClick={this.purchase4SMarketData}
+                    text={`Buy 4S Market Data Access - ${numeralWrapper.formatMoney(cost)}`}
+                    tooltip={"Lets you view additional pricing and volatility information about stocks"}
+                />
+            )
+        }
+    }
+
+    renderPurchase4SMarketDataTixApiAccessButton(): React.ReactElement {
+        if (!this.props.p.hasTixApiAccess) {
+            return (
+                <StdButton
+                    disabled={true}
+                    text={`Buy 4S Market Data TIX API Access`}
+                    tooltip={"Requires TIX API Access"}
+                />
+            )
+        } else if (this.props.p.has4SDataTixApi) {
+            return (
+                <StdButtonPurchased
+                    text={"4S Market Data TIX API - Purchased"}
+                    tooltip={"Let you access 4S Market Data through Netscript"}
+                />
+            )
+        } else {
+            const cost = getStockMarket4STixApiCost();
+            return (
+                <StdButton
+                    disabled={!this.props.p.canAfford(cost)}
+                    onClick={this.purchase4SMarketDataTixApiAccess}
+                    text={`Buy 4S Market Data TIX API Access - ${numeralWrapper.formatMoney(cost)}`}
+                    tooltip={"Let you access 4S Market Data through Netscript"}
+                />
+            )
+        }
+    }
+
+    render() {
+        const documentationLink = "https://bitburner.readthedocs.io/en/latest/basicgameplay/stockmarket.html";
+        return (
+            <div className={"stock-market-info-and-purchases"}>
+                <p>Welcome to the World Stock Exchange (WSE)!</p>
+                <button className={"std-button"}>
+                    <a href={documentationLink} target={"_blank"}>
+                        Investopedia
+                    </a>
+                </button>
+                <br />
+                <p>
+                    To begin trading, you must first purchase an account:
+                </p>
+                {this.renderPurchaseWseAccountButton()}
+
+                <h2>Trade Information eXchange (TIX) API</h2>
+                <p>
+                    TIX, short for Trade Information eXchange, is the communications protocol
+                    used by the WSE. Purchasing access to the TIX API lets you write code to create
+                    your own algorithmic/automated trading strategies.
+                </p>
+                {this.renderPurchaseTixApiAccessButton()}
+                <h2>Four Sigma (4S) Market Data Feed</h2>
+                <p>
+                    Four Sigma's (4S) Market Data Feed provides information about stocks that will help
+                    your trading strategies.
+                </p>
+                {this.renderPurchase4SMarketDataButton()}
+                <button className={"help-tip-big"} onClick={this.handleClick4SMarketDataHelpTip}>
+                    ?
+                </button>
+                {this.renderPurchase4SMarketDataTixApiAccessButton()}
+                <p>
+                    Commission Fees: Every transaction you make has
+                    a {numeralWrapper.formatMoney(CONSTANTS.StockMarketCommission)} commission fee.
+                </p><br />
+                <p>
+                    WARNING: When you reset after installing Augmentations, the Stock
+                    Market is reset. You will retain your WSE Account, access to the
+                    TIX API, and 4S Market Data access. However, all of your stock
+                    positions are lost, so make sure to sell your stocks before
+                    installing Augmentations!
+                </p>
+            </div>
+        )
+    }
+}

src/StockMarket/ui/Root.tsx

@@ -0,0 +1,75 @@
+/**
+ * Root React component for the Stock Market UI
+ */
+import * as React from "react";
+
+import { InfoAndPurchases } from "./InfoAndPurchases";
+import { StockTickers } from "./StockTickers";
+
+import { IStockMarket } from "../IStockMarket";
+import { Stock } from "../Stock";
+import { OrderTypes } from "../data/OrderTypes";
+import { PositionTypes } from "../data/PositionTypes";
+
+import { IPlayer } from "../../PersonObjects/IPlayer";
+
+type txFn = (stock: Stock, shares: number) => boolean;
+export type placeOrderFn = (stock: Stock, shares: number, price: number, ordType: OrderTypes, posType: PositionTypes) => boolean;
+
+type IProps = {
+    buyStockLong: txFn;
+    buyStockShort: txFn;
+    cancelOrder: (params: object) => void;
+    initStockMarket: () => void;
+    p: IPlayer;
+    placeOrder: placeOrderFn;
+    sellStockLong: txFn;
+    sellStockShort: txFn;
+    stockMarket: IStockMarket;
+}
+
+type IState = {
+    rerenderFlag: boolean;
+}
+
+export class StockMarketRoot extends React.Component<IProps, IState> {
+    constructor(props: IProps) {
+        super(props);
+
+        this.state = {
+            rerenderFlag: false,
+        }
+
+        this.rerender = this.rerender.bind(this);
+    }
+
+    rerender(): void {
+        this.setState((prevState) => {
+            return {
+                rerenderFlag: !prevState.rerenderFlag,
+            }
+        });
+    }
+
+    render() {
+        return (
+            <div>
+                <InfoAndPurchases
+                    initStockMarket={this.props.initStockMarket}
+                    p={this.props.p}
+                    rerender={this.rerender}
+                />
+                <StockTickers
+                    buyStockLong={this.props.buyStockLong}
+                    buyStockShort={this.props.buyStockShort}
+                    cancelOrder={this.props.cancelOrder}
+                    p={this.props.p}
+                    placeOrder={this.props.placeOrder}
+                    sellStockLong={this.props.sellStockLong}
+                    sellStockShort={this.props.sellStockShort}
+                    stockMarket={this.props.stockMarket}
+                />
+            </div>
+        )
+    }
+}

src/StockMarket/ui/StockTicker.tsx

@@ -0,0 +1,435 @@
+/**
+ * React Component for a single stock ticker in the Stock Market UI
+ */
+import * as React from "react";
+
+import { StockTickerHeaderText } from "./StockTickerHeaderText";
+import { StockTickerOrderList } from "./StockTickerOrderList";
+import { StockTickerPositionText } from "./StockTickerPositionText";
+import { StockTickerTxButton } from "./StockTickerTxButton";
+
+import { Order } from "../Order";
+import { Stock } from "../Stock";
+import {
+    getBuyTransactionCost,
+    getSellTransactionGain,
+} from "../StockMarketHelpers";
+import { OrderTypes } from "../data/OrderTypes";
+import { PositionTypes } from "../data/PositionTypes";
+
+import { CONSTANTS } from "../../Constants";
+import { IPlayer } from "../../PersonObjects/IPlayer";
+import { SourceFileFlags } from "../../SourceFile/SourceFileFlags";
+import { numeralWrapper } from "../../ui/numeralFormat";
+import { Accordion } from "../../ui/React/Accordion";
+
+import { dialogBoxCreate } from "../../../utils/DialogBox";
+import {
+    yesNoTxtInpBoxClose,
+    yesNoTxtInpBoxCreate,
+    yesNoTxtInpBoxGetInput,
+    yesNoTxtInpBoxGetNoButton,
+    yesNoTxtInpBoxGetYesButton,
+} from "../../../utils/YesNoBox";
+
+enum SelectorOrderType {
+    Market = "Market Order",
+    Limit = "Limit Order",
+    Stop = "Stop Order",
+}
+
+export type txFn = (stock: Stock, shares: number) => boolean;
+export type placeOrderFn = (stock: Stock, shares: number, price: number, ordType: OrderTypes, posType: PositionTypes) => boolean;
+
+type IProps = {
+    buyStockLong: txFn;
+    buyStockShort: txFn;
+    cancelOrder: (params: object) => void;
+    orders: Order[];
+    p: IPlayer;
+    placeOrder: placeOrderFn;
+    sellStockLong: txFn;
+    sellStockShort: txFn;
+    stock: Stock;
+}
+
+type IState = {
+    orderType: SelectorOrderType;
+    position: PositionTypes;
+    qty: string;
+}
+
+export class StockTicker extends React.Component<IProps, IState> {
+    constructor(props: IProps) {
+        super(props);
+
+        this.state = {
+            orderType: SelectorOrderType.Market,
+            position: PositionTypes.Long,
+            qty: "",
+        }
+
+        this.getBuyTransactionCostText = this.getBuyTransactionCostText.bind(this);
+        this.getSellTransactionCostText = this.getSellTransactionCostText.bind(this);
+        this.handleBuyButtonClick = this.handleBuyButtonClick.bind(this);
+        this.handleBuyMaxButtonClick = this.handleBuyMaxButtonClick.bind(this);
+        this.handleHeaderClick = this.handleHeaderClick.bind(this);
+        this.handleOrderTypeChange = this.handleOrderTypeChange.bind(this);
+        this.handlePositionTypeChange = this.handlePositionTypeChange.bind(this);
+        this.handleQuantityChange = this.handleQuantityChange.bind(this);
+        this.handleSellButtonClick = this.handleSellButtonClick.bind(this);
+        this.handleSellAllButtonClick = this.handleSellAllButtonClick.bind(this);
+    }
+
+    createPlaceOrderPopupBox(yesTxt: string, popupTxt: string, yesBtnCb: (price: number) => void) {
+        const yesBtn = yesNoTxtInpBoxGetYesButton();
+        const noBtn  = yesNoTxtInpBoxGetNoButton();
+
+        yesBtn!.innerText = yesTxt;
+        yesBtn!.addEventListener("click", () => {
+            const price = parseFloat(yesNoTxtInpBoxGetInput());
+            if (isNaN(price)) {
+                dialogBoxCreate(`Invalid input for price: ${yesNoTxtInpBoxGetInput()}`);
+                return false;
+            }
+
+            yesBtnCb(price);
+            yesNoTxtInpBoxClose();
+        });
+
+        noBtn!.innerText = "Cancel Order";
+        noBtn!.addEventListener("click", () => {
+            yesNoTxtInpBoxClose();
+        });
+
+        yesNoTxtInpBoxCreate(popupTxt);
+    }
+
+    getBuyTransactionCostText(): string {
+        const stock = this.props.stock;
+        const qty: number = this.getQuantity();
+        if (isNaN(qty)) { return ""; }
+
+        const cost = getBuyTransactionCost(stock, qty, this.state.position);
+        if (cost == null) { return ""; }
+
+        let costTxt = `Purchasing ${numeralWrapper.formatBigNumber(qty)} shares (${this.state.position === PositionTypes.Long ? "Long" : "Short"}) ` +
+                      `will cost ${numeralWrapper.formatMoney(cost)}. `;
+
+        const causesMovement = qty > stock.shareTxUntilMovement;
+        if (causesMovement) {
+            costTxt += `WARNING: Purchasing this many shares will influence the stock price`;
+        }
+
+        return costTxt;
+    }
+
+    getQuantity(): number {
+        return Math.round(parseFloat(this.state.qty));
+    }
+
+    getSellTransactionCostText(): string {
+        const stock = this.props.stock;
+        const qty: number = this.getQuantity();
+        if (isNaN(qty)) { return ""; }
+
+        if (this.state.position === PositionTypes.Long) {
+            if (qty > stock.playerShares) {
+                return `You do not have this many shares in the Long position`;
+            }
+        } else {
+            if (qty > stock.playerShortShares) {
+                return `You do not have this many shares in the Short position`;
+            }
+        }
+        
+        const cost = getSellTransactionGain(stock, qty, this.state.position);
+        if (cost == null) { return ""; }
+
+        let costTxt = `Selling ${numeralWrapper.formatBigNumber(qty)} shares (${this.state.position === PositionTypes.Long ? "Long" : "Short"}) ` +
+                      `will result in a gain of ${numeralWrapper.formatMoney(cost)}. `;
+
+        const causesMovement = qty > stock.shareTxUntilMovement;
+        if (causesMovement) {
+            costTxt += `WARNING: Selling this many shares will influence the stock price`;
+        }
+
+        return costTxt;
+    }
+
+    handleBuyButtonClick() {
+        const shares = this.getQuantity();
+        if (isNaN(shares)) {
+            dialogBoxCreate(`Invalid input for quantity (number of shares): ${this.state.qty}`);
+            return;
+        }
+
+        switch (this.state.orderType) {
+            case SelectorOrderType.Market: {
+                if (this.state.position === PositionTypes.Short) {
+                    this.props.buyStockShort(this.props.stock, shares);
+                } else {
+                    this.props.buyStockLong(this.props.stock, shares);
+                }
+                break;
+            }
+            case SelectorOrderType.Limit: {
+                this.createPlaceOrderPopupBox(
+                    "Place Buy Limit Order",
+                    "Enter the price for your Limit Order",
+                    (price: number) => {
+                        this.props.placeOrder(this.props.stock, shares, price, OrderTypes.LimitBuy, this.state.position);
+                    }
+                );
+                break;
+            }
+            case SelectorOrderType.Stop: {
+                this.createPlaceOrderPopupBox(
+                    "Place Buy Stop Order",
+                    "Enter the price for your Stop Order",
+                    (price: number) => {
+                        this.props.placeOrder(this.props.stock, shares, price, OrderTypes.StopBuy, this.state.position);
+                    }
+                );
+                break;
+            }
+            default:
+                break;
+        }
+    }
+
+    handleBuyMaxButtonClick() {
+        const playerMoney: number = this.props.p.money.toNumber();
+
+        const stock = this.props.stock;
+        let maxShares = Math.floor((playerMoney - CONSTANTS.StockMarketCommission) / this.props.stock.price);
+        maxShares = Math.min(maxShares, Math.round(stock.maxShares - stock.playerShares - stock.playerShortShares));
+
+        switch (this.state.orderType) {
+            case SelectorOrderType.Market: {
+                if (this.state.position === PositionTypes.Short) {
+                    this.props.buyStockShort(stock, maxShares);
+                } else {
+                    this.props.buyStockLong(stock, maxShares);
+                }
+                break;
+            }
+            case SelectorOrderType.Limit: {
+                this.createPlaceOrderPopupBox(
+                    "Place Buy Limit Order",
+                    "Enter the price for your Limit Order",
+                    (price: number) => {
+                        this.props.placeOrder(stock, maxShares, price, OrderTypes.LimitBuy, this.state.position);
+                    }
+                );
+                break;
+            }
+            case SelectorOrderType.Stop: {
+                this.createPlaceOrderPopupBox(
+                    "Place Buy Stop Order",
+                    "Enter the price for your Stop Order",
+                    (price: number) => {
+                        this.props.placeOrder(stock, maxShares, price, OrderTypes.StopBuy, this.state.position);
+                    }
+                )
+                break;
+            }
+            default:
+                break;
+        }
+    }
+
+    handleHeaderClick(e: React.MouseEvent<HTMLButtonElement>) {
+        const elem = e.currentTarget;
+        elem.classList.toggle("active");
+
+        const panel: HTMLElement = elem.nextElementSibling as HTMLElement;
+        if (panel!.style.display === "block") {
+            panel!.style.display = "none";
+        } else {
+            panel.style.display = "block";
+        }
+    }
+
+    handleOrderTypeChange(e: React.ChangeEvent<HTMLSelectElement>) {
+        const val = e.target.value;
+
+        // The select value returns a string. Afaik TypeScript doesnt make it easy
+        // to convert that string back to an enum type so we'll just do this for now
+        switch (val) {
+            case SelectorOrderType.Limit:
+                this.setState({
+                    orderType: SelectorOrderType.Limit,
+                });
+                break;
+            case SelectorOrderType.Stop:
+                this.setState({
+                    orderType: SelectorOrderType.Stop,
+                });
+                break;
+            case SelectorOrderType.Market:
+            default:
+                this.setState({
+                    orderType: SelectorOrderType.Market,
+                });
+        }
+    }
+
+    handlePositionTypeChange(e: React.ChangeEvent<HTMLSelectElement>) {
+        const val = e.target.value;
+
+        if (val === PositionTypes.Short) {
+            this.setState({
+                position: PositionTypes.Short,
+            });
+        } else {
+            this.setState({
+                position: PositionTypes.Long,
+            });
+        }
+
+    }
+
+    handleQuantityChange(e: React.ChangeEvent<HTMLInputElement>) {
+        this.setState({
+            qty: e.target.value,
+        });
+    }
+
+    handleSellButtonClick() {
+        const shares = this.getQuantity();
+        if (isNaN(shares)) {
+            dialogBoxCreate(`Invalid input for quantity (number of shares): ${this.state.qty}`);
+            return;
+        }
+
+        switch (this.state.orderType) {
+            case SelectorOrderType.Market: {
+                if (this.state.position === PositionTypes.Short) {
+                    this.props.sellStockShort(this.props.stock, shares);
+                } else {
+                    this.props.sellStockLong(this.props.stock, shares);
+                }
+                break;
+            }
+            case SelectorOrderType.Limit: {
+                this.createPlaceOrderPopupBox(
+                    "Place Sell Limit Order",
+                    "Enter the price for your Limit Order",
+                    (price: number) => {
+                        this.props.placeOrder(this.props.stock, shares, price, OrderTypes.LimitSell, this.state.position);
+                    }
+                );
+                break;
+            }
+            case SelectorOrderType.Stop: {
+                this.createPlaceOrderPopupBox(
+                    "Place Sell Stop Order",
+                    "Enter the price for your Stop Order",
+                    (price: number) => {
+                        this.props.placeOrder(this.props.stock, shares, price, OrderTypes.StopSell, this.state.position);
+                    }
+                )
+                break;
+            }
+            default:
+                break;
+        }
+    }
+
+    handleSellAllButtonClick() {
+        const stock = this.props.stock;
+
+        switch (this.state.orderType) {
+            case SelectorOrderType.Market: {
+                if (this.state.position === PositionTypes.Short) {
+                    this.props.sellStockShort(stock, stock.playerShortShares);
+                } else {
+                    this.props.sellStockLong(stock, stock.playerShares);
+                }
+                break;
+            }
+            default: {
+                dialogBoxCreate(`ERROR: 'Sell All' only works for Market Orders`);
+                break;
+            }
+        }
+    }
+
+    // Whether the player has access to orders besides market orders (limit/stop)
+    hasOrderAccess(): boolean {
+        return (this.props.p.bitNodeN === 8 || (SourceFileFlags[8] >= 3));
+    }
+
+    // Whether the player has access to shorting stocks
+    hasShortAccess(): boolean {
+        return (this.props.p.bitNodeN === 8 || (SourceFileFlags[8] >= 2));
+    }
+
+    render() {
+        // Determine if the player's intended transaction will cause a price movement
+        let causesMovement: boolean = false;
+        const qty = this.getQuantity();
+        if (!isNaN(qty)) {
+            causesMovement = qty > this.props.stock.shareTxUntilMovement;
+        }
+
+        return (
+            <li>
+                <Accordion
+                    headerContent={
+                        <StockTickerHeaderText p={this.props.p} stock={this.props.stock} />
+                    }
+                    panelContent={
+                        <div>
+                            <input
+                                className="stock-market-input"
+                                onChange={this.handleQuantityChange}
+                                placeholder="Quantity (Shares)"
+                                value={this.state.qty}
+                            />
+                            <select className="stock-market-input dropdown" onChange={this.handlePositionTypeChange} value={this.state.position}>
+                                <option value={PositionTypes.Long}>Long</option>
+                                {
+                                    this.hasShortAccess() &&
+                                    <option value={PositionTypes.Short}>Short</option>
+                                }
+                            </select>
+                            <select className="stock-market-input dropdown" onChange={this.handleOrderTypeChange} value={this.state.orderType}>
+                                <option value={SelectorOrderType.Market}>{SelectorOrderType.Market}</option>
+                                {
+                                    this.hasOrderAccess() &&
+                                    <option value={SelectorOrderType.Limit}>{SelectorOrderType.Limit}</option>
+                                }
+                                {
+                                    this.hasOrderAccess() &&
+                                    <option value={SelectorOrderType.Stop}>{SelectorOrderType.Stop}</option>
+                                }
+                            </select>
+
+                            <StockTickerTxButton onClick={this.handleBuyButtonClick} text={"Buy"} tooltip={this.getBuyTransactionCostText()} />
+                            <StockTickerTxButton onClick={this.handleSellButtonClick} text={"Sell"} tooltip={this.getSellTransactionCostText()} />
+                            <StockTickerTxButton onClick={this.handleBuyMaxButtonClick} text={"Buy MAX"} />
+                            <StockTickerTxButton onClick={this.handleSellAllButtonClick} text={"Sell ALL"} />
+                            {
+                                causesMovement &&
+                                <p className="stock-market-price-movement-warning">
+                                    WARNING: Buying/Selling {numeralWrapper.formatBigNumber(qty)} shares will affect
+                                    the stock's price. This applies during the transaction itself as well. See Investopedia
+                                    for more details.
+                                </p>
+                            }
+                            <StockTickerPositionText p={this.props.p} stock={this.props.stock} />
+                            <StockTickerOrderList
+                                cancelOrder={this.props.cancelOrder}
+                                orders={this.props.orders}
+                                p={this.props.p}
+                                stock={this.props.stock}
+                            />
+                        </div>
+                    }
+                />
+            </li>
+        )
+    }
+}

src/StockMarket/ui/StockTickerHeaderText.tsx

@@ -0,0 +1,41 @@
+/**
+ * React Component for the text on a stock ticker's header. This text displays
+ * general information on the stock such as the name, symbol, price, and
+ * 4S Market Data
+ */
+import * as React from "react";
+
+import { Stock } from "../Stock";
+import { TickerHeaderFormatData } from "../data/TickerHeaderFormatData";
+
+import { IPlayer } from "../../PersonObjects/IPlayer";
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+type IProps = {
+    p: IPlayer;
+    stock: Stock;
+}
+
+export function StockTickerHeaderText(props: IProps): React.ReactElement {
+    const stock = props.stock;
+    const p = props.p;
+
+    const stockPriceFormat = numeralWrapper.formatMoney(stock.price);
+
+    let hdrText = `${stock.name}${" ".repeat(1 + TickerHeaderFormatData.longestName - stock.name.length + (TickerHeaderFormatData.longestSymbol - stock.symbol.length))}${stock.symbol} -${" ".repeat(10 - stockPriceFormat.length)}${stockPriceFormat}`;
+    if (props.p.has4SData) {
+        hdrText += ` - Volatility: ${numeralWrapper.format(stock.mv, '0,0.00')}% - Price Forecast: `;
+        hdrText += (stock.b ? "+" : "-").repeat(Math.floor(stock.otlkMag / 10) + 1);
+    }
+
+    let styleMarkup = {
+        color: "#66ff33"
+    };
+    if (stock.lastPrice === stock.price) {
+        styleMarkup.color = "white";
+    } else if (stock.lastPrice > stock.price) {
+        styleMarkup.color = "red";
+    }
+
+    return <pre style={styleMarkup}>{hdrText}</pre>;
+}

src/StockMarket/ui/StockTickerOrder.tsx

@@ -0,0 +1,42 @@
+/**
+ * React component for displaying a single order in a stock's order book
+ */
+import * as React from "react";
+
+import { Order } from "../Order";
+import { PositionTypes } from "../data/PositionTypes";
+
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+type IProps = {
+    cancelOrder: (params: object) => void;
+    order: Order;
+}
+
+export class StockTickerOrder extends React.Component<IProps, any> {
+    constructor(props: IProps) {
+        super(props);
+
+        this.handleCancelOrderClick = this.handleCancelOrderClick.bind(this);
+    }
+
+    handleCancelOrderClick() {
+        this.props.cancelOrder({ order: this.props.order });
+    }
+
+    render() {
+        const order = this.props.order;
+
+        const posTxt = order.pos === PositionTypes.Long ? "Long Position" : "Short Position";
+        const txt = `${order.type} - ${posTxt} - ${order.shares} @ ${numeralWrapper.formatMoney(order.price)}`
+
+        return (
+            <li>
+                {txt}
+                <button className={"std-button stock-market-order-cancel-btn"} onClick={this.handleCancelOrderClick}>
+                    Cancel Order
+                </button>
+            </li>
+        )
+    }
+}

src/StockMarket/ui/StockTickerOrderList.tsx

@@ -0,0 +1,33 @@
+/**
+ * React component for displaying a stock's order list in the Stock Market UI.
+ * This component resides in the stock ticker
+ */
+import * as React from "react";
+
+import { StockTickerOrder } from "./StockTickerOrder";
+
+import { Order } from "../Order";
+import { Stock } from "../Stock";
+
+import { IPlayer } from "../../PersonObjects/IPlayer";
+
+type IProps = {
+    cancelOrder: (params: object) => void;
+    orders: Order[];
+    p: IPlayer;
+    stock: Stock;
+}
+
+export class StockTickerOrderList extends React.Component<IProps, any> {
+    render() {
+        const orders: React.ReactElement[] = [];
+        for (let i = 0; i < this.props.orders.length; ++i) {
+            const o = this.props.orders[i];
+            orders.push(<StockTickerOrder cancelOrder={this.props.cancelOrder} order={o} key={i} />);
+        }
+
+        return (
+            <ul className={"stock-market-order-list"}>{orders}</ul>
+        )
+    }
+}

src/StockMarket/ui/StockTickerPositionText.tsx

@@ -0,0 +1,114 @@
+/**
+ * React Component for the text on a stock ticker that display's information
+ * about the player's position in that stock
+ */
+import * as React from "react";
+
+import { Stock } from "../Stock";
+
+import { IPlayer } from "../../PersonObjects/IPlayer";
+import { numeralWrapper } from "../../ui/numeralFormat";
+import { SourceFileFlags } from "../../SourceFile/SourceFileFlags";
+
+type IProps = {
+    p: IPlayer;
+    stock: Stock;
+}
+
+const blockStyleMarkup = {
+    display: "block",
+}
+
+export class StockTickerPositionText extends React.Component<IProps, any> {
+    renderLongPosition(): React.ReactElement {
+        const stock = this.props.stock;
+
+        // Caculate total returns
+        const totalCost = stock.playerShares * stock.playerAvgPx;
+        const gains = (stock.price - stock.playerAvgPx) * stock.playerShares;
+        let percentageGains = gains / totalCost;
+        if (isNaN(percentageGains)) { percentageGains = 0; }
+
+        return (
+            <div>
+                <h3 className={"tooltip"}>
+                    Long Position:
+                    <span className={"tooltiptext"}>
+                        Shares in the long position will increase in value if the price
+                        of the corresponding stock increases
+                    </span>
+                </h3><br />
+                <p>
+                    Shares: {numeralWrapper.format(stock.playerShares, "0,0")}
+                </p><br />
+                <p>
+                    Average Price: {numeralWrapper.formatMoney(stock.playerAvgPx)} (Total Cost: {numeralWrapper.formatMoney(totalCost)})
+                </p><br />
+                <p>
+                    Profit: {numeralWrapper.formatMoney(gains)} ({numeralWrapper.formatPercentage(percentageGains)})
+                </p><br />
+            </div>
+        )
+    }
+
+    renderShortPosition(): React.ReactElement | null {
+        const stock = this.props.stock;
+
+        // Caculate total returns
+        const totalCost = stock.playerShortShares * stock.playerAvgShortPx;
+        const gains = (stock.playerAvgShortPx - stock.price) * stock.playerShortShares;
+        let percentageGains = gains / totalCost;
+        if (isNaN(percentageGains)) { percentageGains = 0; }
+
+        if (this.props.p.bitNodeN === 8 || (SourceFileFlags[8] >= 2)) {
+            return (
+                <div>
+                    <h3 className={"tooltip"}>
+                        Short Position:
+                        <span className={"tooltiptext"}>
+                            Shares in the short position will increase in value if the
+                            price of the corresponding stock decreases
+                        </span>
+                    </h3><br />
+                    <p>
+                        Shares: {numeralWrapper.format(stock.playerShortShares, "0,0")}
+                    </p><br />
+                    <p>
+                        Average Price: {numeralWrapper.formatMoney(stock.playerAvgShortPx)} (Total Cost: {numeralWrapper.formatMoney(totalCost)})
+                    </p><br />
+                    <p>
+                        Profit: {numeralWrapper.formatMoney(gains)} ({numeralWrapper.formatPercentage(percentageGains)})
+                    </p><br />
+                </div>
+            )
+        } else {
+            return null;
+        }
+    }
+
+    render() {
+        const stock = this.props.stock;
+
+        return (
+            <div className={"stock-market-position-text"}>
+                <p style={blockStyleMarkup}>
+                    Max Shares: {numeralWrapper.formatBigNumber(stock.maxShares)}
+                </p>
+                <p className={"tooltip"} >
+                    Ask Price: {numeralWrapper.formatMoney(stock.getAskPrice())}
+                    <span className={"tooltiptext"}>
+                        See Investopedia for details on what this is
+                    </span>
+                </p><br />
+                <p className={"tooltip"} >
+                    Bid Price: {numeralWrapper.formatMoney(stock.getBidPrice())}
+                    <span className={"tooltiptext"}>
+                        See Investopedia for details on what this is
+                    </span>
+                </p>
+                {this.renderLongPosition()}
+                {this.renderShortPosition()}
+            </div>
+        )
+    }
+}

src/StockMarket/ui/StockTickerTxButton.tsx

@@ -0,0 +1,41 @@
+/**
+ * React Component for a button that initiates a transaction on the Stock Market UI
+ * (Buy, Sell, Buy Max, etc.)
+ */
+import * as React from "react";
+
+type IProps = {
+    onClick: () => void;
+    text: string;
+    tooltip?: string;
+}
+
+type IInnerHTMLMarkup = {
+    __html: string;
+}
+
+export function StockTickerTxButton(props: IProps): React.ReactElement {
+    let className = "stock-market-input std-button";
+
+    const hasTooltip = (typeof props.tooltip === "string" && props.tooltip !== "");
+    if (hasTooltip) {
+        className += " tooltip";
+    }
+
+    let tooltipMarkup: IInnerHTMLMarkup | null;
+    if (hasTooltip) {
+        tooltipMarkup = {
+            __html: props.tooltip!
+        }
+    }
+
+    return (
+        <button className={className} onClick={props.onClick}>
+            {props.text}
+            {
+                hasTooltip &&
+                <span className={"tooltiptext"} dangerouslySetInnerHTML={tooltipMarkup!}></span>
+            }
+        </button>
+    )
+}

src/StockMarket/ui/StockTickers.tsx

@@ -0,0 +1,146 @@
+/**
+ * React Component for the Stock Market UI. This is the container for all
+ * of the stock tickers. It also contains the configuration for the
+ * stock ticker UI (watchlist filter, portfolio vs all mode, etc.)
+ */
+import * as React from "react";
+
+import { StockTicker } from "./StockTicker";
+import { StockTickersConfig, TickerDisplayMode } from "./StockTickersConfig";
+
+import { IStockMarket } from "../IStockMarket";
+import { Stock } from "../Stock";
+import { OrderTypes } from "../data/OrderTypes";
+import { PositionTypes } from "../data/PositionTypes";
+
+import { IPlayer } from "../../PersonObjects/IPlayer";
+
+export type txFn = (stock: Stock, shares: number) => boolean;
+export type placeOrderFn = (stock: Stock, shares: number, price: number, ordType: OrderTypes, posType: PositionTypes) => boolean;
+
+type IProps = {
+    buyStockLong: txFn;
+    buyStockShort: txFn;
+    cancelOrder: (params: object) => void;
+    p: IPlayer;
+    placeOrder: placeOrderFn;
+    sellStockLong: txFn;
+    sellStockShort: txFn;
+    stockMarket: IStockMarket;
+}
+
+type IState = {
+    rerenderFlag: boolean;
+    tickerDisplayMode: TickerDisplayMode;
+    watchlistFilter: string;
+    watchlistSymbols: string[];
+}
+
+export class StockTickers extends React.Component<IProps, IState> {
+    constructor(props: IProps) {
+        super(props);
+
+        this.state = {
+            rerenderFlag: false,
+            tickerDisplayMode: TickerDisplayMode.AllStocks,
+            watchlistFilter: "",
+            watchlistSymbols: [],
+        }
+
+        this.changeDisplayMode = this.changeDisplayMode.bind(this);
+        this.changeWatchlistFilter = this.changeWatchlistFilter.bind(this);
+    }
+
+    changeDisplayMode() {
+        if (this.state.tickerDisplayMode === TickerDisplayMode.AllStocks) {
+            this.setState({
+                tickerDisplayMode: TickerDisplayMode.Portfolio,
+            });
+        } else {
+            this.setState({
+                tickerDisplayMode: TickerDisplayMode.AllStocks,
+            });
+        }
+    }
+
+    changeWatchlistFilter(e: React.ChangeEvent<HTMLInputElement>) {
+        const watchlist = e.target.value;
+        const sanitizedWatchlist = watchlist.replace(/\s/g, '');
+
+        this.setState({
+            watchlistFilter: watchlist,
+        });
+
+        if (sanitizedWatchlist !== "") {
+            this.setState({
+                watchlistSymbols: sanitizedWatchlist.split(","),
+            });
+        } else {
+            this.setState({
+                watchlistSymbols: [],
+            });
+        }
+    }
+
+    rerender() {
+        this.setState((prevState) => {
+            return {
+                rerenderFlag: !prevState.rerenderFlag,
+            }
+        });
+    }
+
+    render() {
+        const tickers: React.ReactElement[] = [];
+        for (const stockMarketProp in this.props.stockMarket) {
+            const val = this.props.stockMarket[stockMarketProp];
+            if (val instanceof Stock) {
+                // Skip if there's a filter and the stock isnt in that filter
+                if (this.state.watchlistSymbols.length > 0 && !this.state.watchlistSymbols.includes(val.symbol)) {
+                    continue;
+                }
+
+                let orders = this.props.stockMarket.Orders[val.symbol];
+                if (orders == null) {
+                    orders = [];
+                }
+
+                // Skip if we're in portfolio mode and the player doesnt own this or have any active orders
+                if (this.state.tickerDisplayMode === TickerDisplayMode.Portfolio) {
+                    if (val.playerShares === 0 && val.playerShortShares === 0 && orders.length === 0) {
+                        continue;
+                    }
+                }
+
+                tickers.push(
+                    <StockTicker
+                        buyStockLong={this.props.buyStockLong}
+                        buyStockShort={this.props.buyStockShort}
+                        cancelOrder={this.props.cancelOrder}
+                        key={val.symbol}
+                        orders={orders}
+                        p={this.props.p}
+                        placeOrder={this.props.placeOrder}
+                        sellStockLong={this.props.sellStockLong}
+                        sellStockShort={this.props.sellStockShort}
+                        stock={val}
+                    />
+                )
+            }
+        }
+
+        return (
+            <div>
+                <StockTickersConfig
+                    changeDisplayMode={this.changeDisplayMode}
+                    changeWatchlistFilter={this.changeWatchlistFilter}
+                    tickerDisplayMode={this.state.tickerDisplayMode}
+                />
+
+                <ul id="stock-market-list">
+                    {tickers}
+                </ul>
+            </div>
+        )
+    }
+}

src/StockMarket/ui/StockTickersConfig.tsx

@@ -0,0 +1,61 @@
+/**
+ * React component for the tickers configuration section of the Stock Market UI.
+ * This config lets you change the way stock tickers are displayed (watchlist,
+ * all/portoflio mode, etc)
+ */
+import * as React from "react";
+
+import { StdButton } from "../../ui/React/StdButton";
+
+export enum TickerDisplayMode {
+    AllStocks,
+    Portfolio,
+}
+
+type IProps = {
+    changeDisplayMode: () => void;
+    changeWatchlistFilter: (e: React.ChangeEvent<HTMLInputElement>) => void;
+    tickerDisplayMode: TickerDisplayMode;
+}
+
+export class StockTickersConfig extends React.Component<IProps, any> {
+    constructor(props: IProps) {
+        super(props);
+    }
+
+    renderDisplayModeButton() {
+        let txt: string = "";
+        let tooltip: string = "";
+        if (this.props.tickerDisplayMode === TickerDisplayMode.Portfolio) {
+            txt = "Switch to 'All Stocks' Mode";
+            tooltip = "Displays all stocks on the WSE";
+        } else {
+            txt = "Switch to 'Portfolio' Mode";
+            tooltip = "Displays only the stocks for which you have shares or orders";
+        }
+
+        return (
+            <StdButton
+                onClick={this.props.changeDisplayMode}
+                text={txt}
+                tooltip={tooltip}
+            />
+        )
+    }
+
+    render() {
+        return (
+            <div>
+                {this.renderDisplayModeButton()}
+
+                <input
+                    className="text-input"
+                    id="stock-market-watchlist-filter"
+                    onChange={this.props.changeWatchlistFilter}
+                    placeholder="Filter Stocks by symbol (comma-separated list)"
+                    type="text"
+                />
+            </div>
+        )
+    }
+}

src/engine.jsx

@@ -82,9 +82,7 @@ import {
 } from "./Server/SpecialServerIps";
 import {
     StockMarket,
-    StockSymbols,
     SymbolToStockMap,
-    initStockSymbols,
     initSymbolToStockMap,
     stockMarketCycle,
     processStockPrices,
@@ -1085,7 +1083,6 @@ const Engine = {
             Engine.init();                  // Initialize buttons, work, etc.
             initAugmentations();            // Also calls Player.reapplyAllAugmentations()
             Player.reapplyAllSourceFiles();
-            initStockSymbols();
             if (Player.hasWseAccount) {
                 initSymbolToStockMap();
             }
@@ -1215,7 +1212,6 @@ const Engine = {
             initFactions();
             initAugmentations();
             initMessages();
-            initStockSymbols();
             initLiterature();
             initSingularitySFFlags();
 

src/index.html

@@ -290,53 +290,7 @@ if (htmlWebpackPlugin.options.googleAnalytics.trackingId) { %>
     </div>
 
     <div id="stock-market-container" class="generic-menupage-container">
-        <p>
+        <!-- React Component -->
-            Welcome to the World Stock Exchange (WSE)! <br /><br />
-
-            To begin trading, you must first purchase an account. WSE accounts will persist
-            after you 'reset' by installing Augmentations.
-        </p>
-        <a id="stock-market-buy-account" class="a-link-button-inactive"> Buy WSE Account </a>
-        <a id="stock-market-investopedia" class="a-link-button">Investopedia</a>
-
-        <h2> Trade Information eXchange (TIX) API </h2>
-        <p>
-            TIX, short for Trade Information eXchange, is the communications protocol supported by the WSE.
-            Purchasing access to the TIX API lets you write code to create your own algorithmic/automated
-            trading strategies.
-            <br /><br />
-            If you purchase access to the TIX API, you will retain that access even after
-            you 'reset' by installing Augmentations.
-        </p>
-        <a id="stock-market-buy-tix-api" class="a-link-button-inactive">Buy Trade Information eXchange (TIX) API Access</a>
-
-        <h2> Four Sigma (4S) Market Data Feed </h2>
-        <p>
-            Four Sigma's (4S) Market Data Feed provides information about stocks
-            that will help your trading strategies.
-            <br /><br />
-            If you purchase access to 4S Market Data and/or the 4S TIX API, you will
-            retain that access even after you 'reset' by installing Augmentations.
-        </p>
-
-        <a id="stock-market-buy-4s-data" class="a-link-button-inactive tooltip">
-            Buy 4S Market Data Feed
-        </a>
-        <div class="help-tip-big" id="stock-market-4s-data-help-tip">?</div>
-
-        <a id="stock-market-buy-4s-tix-api" class="a-link-button-inactive tooltip">
-            Buy 4S Market Data TIX API Access
-        </a>
-
-        <p id="stock-market-commission"> </p>
-        <a id="stock-market-mode" class="a-link-button tooltip"></a>
-        <a id="stock-market-expand-tickers" class="a-link-button tooltip">Expand tickers</a>
-        <a id="stock-market-collapse-tickers" class="a-link-button tooltip">Collapse tickers</a>
-        <br /><br />
-        <input id="stock-market-watchlist-filter" class="text-input" type="text" placeholder="Filter Stocks by symbol (comma-separated list)"/>
-        <a id="stock-market-watchlist-filter-update" class="a-link-button"> Update Watchlist </a>
-        <ul id="stock-market-list" style="list-style:none;">
-		</ul>
     </div>
 
     <!-- Log Box -->

src/types.ts

@@ -44,3 +44,25 @@ export interface IReturnStatus {
     res: boolean;
     msg?: string;
 }
+
+/**
+ * Defines the minimum and maximum values for a range.
+ * It is up to the consumer if these values are inclusive or exclusive.
+ * It is up to the implementor to ensure max > min.
+ */
+export interface IMinMaxRange {
+    /**
+     * Value by which the bounds are to be divided for the final range
+     */
+    divisor?: number;
+    
+    /**
+     * The maximum bound of the range.
+     */
+    max: number;
+
+    /**
+     * The minimum bound of the range.
+     */
+    min: number;
+}

src/ui/React/Accordion.tsx

@@ -0,0 +1,73 @@
+/**
+ * React component to create an accordion element
+ */
+import * as React from "react";
+
+type IProps = {
+    headerContent: React.ReactElement;
+    panelContent: React.ReactElement;
+}
+
+type IState = {
+    panelOpened: boolean;
+}
+
+export class Accordion extends React.Component<IProps, IState> {
+    constructor(props: IProps) {
+        super(props);
+
+        this.handleHeaderClick = this.handleHeaderClick.bind(this);
+
+        this.state = {
+            panelOpened: false,
+        }
+    }
+
+    handleHeaderClick(e: React.MouseEvent<HTMLButtonElement>) {
+        const elem = e.currentTarget;
+        elem.classList.toggle("active");
+
+        const panel: HTMLElement = elem.nextElementSibling as HTMLElement;
+        if (panel!.style.display === "block") {
+            panel!.style.display = "none";
+            this.setState({
+                panelOpened: false,
+            });
+        } else {
+            panel!.style.display = "block";
+            this.setState({
+                panelOpened: true,
+            });
+        }
+    }
+
+    render() {
+        return (
+            <div>
+                <button className={"accordion-header"} onClick={this.handleHeaderClick}>
+                    {this.props.headerContent}
+                </button>
+                <AccordionPanel opened={this.state.panelOpened} panelContent={this.props.panelContent} />
+            </div>
+        )
+    }
+}
+
+type IPanelProps = {
+    opened: boolean;
+    panelContent: React.ReactElement;
+}
+
+class AccordionPanel extends React.Component<IPanelProps, any> {
+    shouldComponentUpdate(nextProps: IPanelProps) {
+        return this.props.opened || nextProps.opened;
+    }
+
+    render() {
+        return (
+            <div className={"accordion-panel"}>
+                {this.props.panelContent}
+            </div>
+        )
+    }
+}

src/ui/React/StdButtonPurchased.tsx

@@ -7,13 +7,36 @@ interface IStdButtonPurchasedProps {
     onClick?: (e: React.MouseEvent<HTMLElement>) => any;
     style?: object;
     text: string;
+    tooltip?: string;
+}
+
+type IInnerHTMLMarkup = {
+    __html: string;
 }
 
 export class StdButtonPurchased extends React.Component<IStdButtonPurchasedProps, any> {
     render() {
+        const hasTooltip = this.props.tooltip != null && this.props.tooltip !== "";
+        let className = "std-button-bought";
+        if (hasTooltip) {
+            className += " tooltip";
+        }
+
+        // Tooltip will be set using inner HTML
+        let tooltipMarkup: IInnerHTMLMarkup | null;
+        if (hasTooltip) {
+            tooltipMarkup = {
+                __html: this.props.tooltip!
+            }
+        }
+
         return (
-            <button className={"std-button-bought"} onClick={this.props.onClick} style={this.props.style}>
+            <button className={className} onClick={this.props.onClick} style={this.props.style}>
                 {this.props.text}
+                {
+                    hasTooltip &&
+                    <span className={"tooltiptext"} dangerouslySetInnerHTML={tooltipMarkup!}></span>
+                }
             </button>
         )
     }

tests/StockMarketTests.js

@@ -0,0 +1,432 @@
+import { CONSTANTS } from "../src/Constants";
+import { Stock } from "../src/StockMarket/Stock";
+import {
+    calculateIncreasingPriceMovement,
+    calculateDecreasingPriceMovement,
+    getBuyTransactionCost,
+    getSellTransactionGain,
+    processBuyTransactionPriceMovement,
+    processSellTransactionPriceMovement,
+} from "../src/StockMarket/StockMarketHelpers";
+import { PositionTypes } from "../src/StockMarket/data/PositionTypes";
+
+const assert = chai.assert;
+const expect = chai.expect;
+
+console.log("Beginning Stock Market Tests");
+
+describe("Stock Market Tests", function() {
+    const commission = CONSTANTS.StockMarketCommission;
+
+    // Generic Stock object that can be used by each test
+    let stock;
+    const ctorParams = {
+        b: true,
+        initPrice: 10e3,
+        marketCap: 5e9,
+        mv: 1,
+        name: "MockStock",
+        otlkMag: 10,
+        spreadPerc: 1,
+        shareTxForMovement: 5e3,
+        symbol: "mock",
+    };
+
+    beforeEach(function() {
+        function construct() {
+            stock = new Stock(ctorParams);
+        }
+
+        expect(construct).to.not.throw();
+    });
+
+    describe("Stock Class", function() {
+        describe("constructor", function() {
+            it("should have default parameters", function() {
+                let defaultStock;
+                function construct() {
+                    defaultStock = new Stock();
+                }
+
+                expect(construct).to.not.throw();
+                expect(defaultStock.name).to.equal("");
+            });
+
+            it("should properly initialize props from parameters", function() {
+                expect(stock.name).to.equal(ctorParams.name);
+                expect(stock.symbol).to.equal(ctorParams.symbol);
+                expect(stock.price).to.equal(ctorParams.initPrice);
+                expect(stock.lastPrice).to.equal(ctorParams.initPrice);
+                expect(stock.b).to.equal(ctorParams.b);
+                expect(stock.mv).to.equal(ctorParams.mv);
+                expect(stock.shareTxForMovement).to.equal(ctorParams.shareTxForMovement);
+                expect(stock.shareTxUntilMovement).to.equal(ctorParams.shareTxForMovement);
+                expect(stock.maxShares).to.be.below(stock.totalShares);
+                expect(stock.spreadPerc).to.equal(ctorParams.spreadPerc);
+                expect(stock.priceMovementPerc).to.be.a("number");
+                expect(stock.priceMovementPerc).to.be.at.most(stock.spreadPerc);
+                expect(stock.priceMovementPerc).to.be.at.least(0);
+            });
+
+            it ("should properly initialize props from range-values", function() {
+                let stock;
+                const params = {
+                    b: true,
+                    initPrice: {
+                        max: 10e3,
+                        min: 1e3,
+                    },
+                    marketCap: 5e9,
+                    mv: {
+                        divisor: 100,
+                        max: 150,
+                        min: 50,
+                    },
+                    name: "MockStock",
+                    otlkMag: 10,
+                    spreadPerc: {
+                        divisor: 10,
+                        max: 10,
+                        min: 1,
+                    },
+                    shareTxForMovement: {
+                        max: 10e3,
+                        min: 5e3,
+                    },
+                    symbol: "mock",
+                };
+
+                function construct() {
+                    stock = new Stock(params);
+                }
+
+                expect(construct).to.not.throw();
+                expect(stock.price).to.be.within(params.initPrice.min, params.initPrice.max);
+                expect(stock.mv).to.be.within(params.mv.min / params.mv.divisor, params.mv.max / params.mv.divisor);
+                expect(stock.spreadPerc).to.be.within(params.spreadPerc.min / params.spreadPerc.divisor, params.spreadPerc.max / params.spreadPerc.divisor);
+                expect(stock.shareTxForMovement).to.be.within(params.shareTxForMovement.min, params.shareTxForMovement.max);
+            });
+
+            it("should round the 'totalShare' prop to the nearest 100k", function() {
+                expect(stock.totalShares % 100e3).to.equal(0);
+            });
+        });
+
+        describe("#changePrice()", function() {
+            it("should set both the last price and current price properties", function() {
+                const newPrice = 20e3;
+                stock.changePrice(newPrice);
+                expect(stock.lastPrice).to.equal(ctorParams.initPrice);
+                expect(stock.price).to.equal(newPrice);
+            });
+        });
+
+        describe("#getAskPrice()", function() {
+            it("should return the price increased by spread percentage", function() {
+                const perc = stock.spreadPerc / 100;
+                expect(perc).to.be.at.most(1);
+                expect(perc).to.be.at.least(0);
+
+                const expected = stock.price * (1 + perc);
+                expect(stock.getAskPrice()).to.equal(expected);
+            });
+        });
+
+        describe("#getBidPrice()", function() {
+            it("should return the price decreased by spread percentage", function() {
+                const perc = stock.spreadPerc / 100;
+                expect(perc).to.be.at.most(1);
+                expect(perc).to.be.at.least(0);
+
+                const expected = stock.price * (1 - perc);
+                expect(stock.getBidPrice()).to.equal(expected);
+            });
+        });
+    });
+
+    describe("Transaction Cost Calculator Functions", function() {
+        describe("getBuyTransactionCost()", function() {
+            it("should fail on invalid 'stock' argument", function() {
+                const res = getBuyTransactionCost({}, 10, PositionTypes.Long);
+                expect(res).to.equal(null);
+            });
+
+            it("should fail on invalid 'shares' arg", function() {
+                let res = getBuyTransactionCost(stock, NaN, PositionTypes.Long);
+                expect(res).to.equal(null);
+
+                res = getBuyTransactionCost(stock, -1, PositionTypes.Long);
+                expect(res).to.equal(null);
+            });
+
+            it("should properly evaluate LONG transactions that doesn't trigger a price movement", function() {
+                const shares = ctorParams.shareTxForMovement / 2;
+                const res = getBuyTransactionCost(stock, shares, PositionTypes.Long);
+                expect(res).to.equal(shares * stock.getAskPrice() + commission);
+            });
+
+            it("should properly evaluate SHORT transactions that doesn't trigger a price movement", function() {
+                const shares = ctorParams.shareTxForMovement / 2;
+                const res = getBuyTransactionCost(stock, shares, PositionTypes.Short);
+                expect(res).to.equal(shares * stock.getBidPrice() + commission);
+            });
+
+            it("should properly evaluate LONG transactions that trigger price movements", function() {
+                const sharesPerMvmt = ctorParams.shareTxForMovement;
+                const shares = sharesPerMvmt * 3;
+                const res = getBuyTransactionCost(stock, shares, PositionTypes.Long);
+
+                // Calculate expected cost
+                const secondPrice = stock.getAskPrice() * calculateIncreasingPriceMovement(stock);
+                const thirdPrice = secondPrice * calculateIncreasingPriceMovement(stock);
+                let expected = (sharesPerMvmt * stock.getAskPrice()) + (sharesPerMvmt * secondPrice) + (sharesPerMvmt * thirdPrice);
+
+                expect(res).to.equal(expected + commission);
+            });
+
+            it("should properly evaluate SHORT transactions that trigger price movements", function() {
+                const sharesPerMvmt = ctorParams.shareTxForMovement;
+                const shares = sharesPerMvmt * 3;
+                const res = getBuyTransactionCost(stock, shares, PositionTypes.Short);
+
+                // Calculate expected cost
+                const secondPrice = stock.getBidPrice() * calculateDecreasingPriceMovement(stock);
+                const thirdPrice = secondPrice * calculateDecreasingPriceMovement(stock);
+                let expected = (sharesPerMvmt * stock.getBidPrice()) + (sharesPerMvmt * secondPrice) + (sharesPerMvmt * thirdPrice);
+
+                expect(res).to.equal(expected + commission);
+            });
+
+            it("should cap the 'shares' argument at the stock's maximum number of shares", function() {
+                const maxRes = getBuyTransactionCost(stock, stock.maxShares, PositionTypes.Long);
+                const exceedRes = getBuyTransactionCost(stock, stock.maxShares * 10, PositionTypes.Long);
+                expect(maxRes).to.equal(exceedRes);
+            });
+        });
+
+        describe("getSellTransactionGain()", function() {
+            it("should fail on invalid 'stock' argument", function() {
+                const res = getSellTransactionGain({}, 10, PositionTypes.Long);
+                expect(res).to.equal(null);
+            });
+
+            it("should fail on invalid 'shares' arg", function() {
+                let res = getSellTransactionGain(stock, NaN, PositionTypes.Long);
+                expect(res).to.equal(null);
+
+                res = getSellTransactionGain(stock, -1, PositionTypes.Long);
+                expect(res).to.equal(null);
+            });
+
+            it("should properly evaluate LONG transactions that doesn't trigger a price movement", function() {
+                const shares = ctorParams.shareTxForMovement / 2;
+                const res = getSellTransactionGain(stock, shares, PositionTypes.Long);
+                const expected = shares * stock.getBidPrice() - commission;
+                expect(res).to.equal(expected);
+            });
+
+            it("should properly evaluate SHORT transactions that doesn't trigger a price movement", function() {
+                // We need to set this property in order to calculate gains from short position
+                stock.playerAvgShortPx = stock.price * 2;
+
+                const shares = ctorParams.shareTxForMovement / 2;
+                const res = getSellTransactionGain(stock, shares, PositionTypes.Short);
+                const expected = (shares * stock.playerAvgShortPx) + (shares * (stock.playerAvgShortPx - stock.getAskPrice())) - commission;
+                expect(res).to.equal(expected);
+            });
+
+            it("should properly evaluate LONG transactions that trigger price movements", function() {
+                const sharesPerMvmt = ctorParams.shareTxForMovement;
+                const shares = sharesPerMvmt * 3;
+                const res = getSellTransactionGain(stock, shares, PositionTypes.Long);
+
+                // Calculated expected gain
+                const mvmt = calculateDecreasingPriceMovement(stock);
+                const secondPrice = stock.getBidPrice() * mvmt;
+                const thirdPrice = secondPrice * mvmt;
+                const expected = (sharesPerMvmt * stock.getBidPrice()) + (sharesPerMvmt * secondPrice) + (sharesPerMvmt * thirdPrice);
+
+                expect(res).to.equal(expected - commission);
+            });
+
+            it("should properly evaluate SHORT transactions that trigger price movements", function() {
+                // We need to set this property in order to calculate gains from short position
+                stock.playerAvgShortPx = stock.price * 2;
+
+                const sharesPerMvmt = ctorParams.shareTxForMovement;
+                const shares = sharesPerMvmt * 3;
+                const res = getSellTransactionGain(stock, shares, PositionTypes.Short);
+
+                // Calculate expected gain
+                const mvmt = calculateIncreasingPriceMovement(stock);
+                const secondPrice = stock.getAskPrice() * mvmt;
+                const thirdPrice = secondPrice * mvmt;
+                function getGainForPrice(thisPrice) {
+                    const origCost = sharesPerMvmt * stock.playerAvgShortPx;
+                    return origCost + ((stock.playerAvgShortPx - thisPrice) * sharesPerMvmt);
+                }
+                const expected = getGainForPrice(stock.getAskPrice()) + getGainForPrice(secondPrice) + getGainForPrice(thirdPrice);
+
+                expect(res).to.equal(expected - commission);
+            });
+
+            it("should cap the 'shares' argument at the stock's maximum number of shares", function() {
+                const maxRes = getSellTransactionGain(stock, stock.maxShares, PositionTypes.Long);
+                const exceedRes = getSellTransactionGain(stock, stock.maxShares * 10, PositionTypes.Long);
+                expect(maxRes).to.equal(exceedRes);
+            });
+        });
+    });
+
+    describe("Price Movement Processor Functions", function() {
+        describe("processBuyTransactionPriceMovement()", function() {
+            const noMvmtShares = Math.round(ctorParams.shareTxForMovement / 2.2);
+            const mvmtShares = ctorParams.shareTxForMovement * 3 + noMvmtShares;
+
+            it("should do nothing on invalid 'stock' argument", function() {
+                const oldPrice = stock.price;
+                const oldTracker = stock.shareTxUntilMovement;
+
+                processBuyTransactionPriceMovement({}, mvmtShares, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(oldTracker);
+            });
+
+            it("should do nothing on invalid 'shares' arg", function() {
+                const oldPrice = stock.price;
+                const oldTracker = stock.shareTxUntilMovement;
+
+                processBuyTransactionPriceMovement(stock, NaN, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(oldTracker);
+
+                processBuyTransactionPriceMovement(stock, -1, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(oldTracker);
+            });
+
+            it("should properly evaluate LONG transactions that doesn't trigger a price movement", function() {
+                const oldPrice = stock.price;
+
+                processBuyTransactionPriceMovement(stock, noMvmtShares, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+
+            it("should properly evaluate SHORT transactions that doesn't trigger a price movement", function() {
+                const oldPrice = stock.price;
+
+                processBuyTransactionPriceMovement(stock, noMvmtShares, PositionTypes.Short);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+
+            it("should properly evaluate LONG transactions that trigger price movements", function() {
+                const oldPrice = stock.price;
+                function getNthPrice(n) {
+                    let price = oldPrice;
+                    for (let i = 1; i < n; ++i) {
+                        price *= calculateIncreasingPriceMovement(stock);
+                    }
+
+                    return price;
+                }
+
+                processBuyTransactionPriceMovement(stock, mvmtShares, PositionTypes.Long);
+                expect(stock.price).to.equal(getNthPrice(4));
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+
+            it("should properly evaluate SHORT transactions that trigger price movements", function() {
+                const oldPrice = stock.price;
+                function getNthPrice(n) {
+                    let price = oldPrice;
+                    for (let i = 1; i < n; ++i) {
+                        price *= calculateDecreasingPriceMovement(stock);
+                    }
+
+                    return price;
+                }
+
+                processBuyTransactionPriceMovement(stock, mvmtShares, PositionTypes.Short);
+                expect(stock.price).to.equal(getNthPrice(4));
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+        });
+
+        describe("processSellTransactionPriceMovement()", function() {
+            const noMvmtShares = Math.round(ctorParams.shareTxForMovement / 2.2);
+            const mvmtShares = ctorParams.shareTxForMovement * 3 + noMvmtShares;
+
+            it("should do nothing on invalid 'stock' argument", function() {
+                const oldPrice = stock.price;
+                const oldTracker = stock.shareTxUntilMovement;
+
+                processSellTransactionPriceMovement({}, mvmtShares, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(oldTracker);
+            });
+
+            it("should do nothing on invalid 'shares' arg", function() {
+                const oldPrice = stock.price;
+                const oldTracker = stock.shareTxUntilMovement;
+
+                processSellTransactionPriceMovement(stock, NaN, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(oldTracker);
+
+                processSellTransactionPriceMovement(stock, -1, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(oldTracker);
+            });
+
+            it("should properly evaluate LONG transactions that doesn't trigger a price movement", function() {
+                const oldPrice = stock.price;
+
+                processSellTransactionPriceMovement(stock, noMvmtShares, PositionTypes.Long);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+
+            it("should properly evaluate SHORT transactions that doesn't trigger a price movement", function() {
+                const oldPrice = stock.price;
+
+                processSellTransactionPriceMovement(stock, noMvmtShares, PositionTypes.Short);
+                expect(stock.price).to.equal(oldPrice);
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+
+            it("should properly evaluate LONG transactions that trigger price movements", function() {
+                const oldPrice = stock.price;
+                function getNthPrice(n) {
+                    let price = oldPrice;
+                    for (let i = 1; i < n; ++i) {
+                        price *= calculateDecreasingPriceMovement(stock);
+                    }
+
+                    return price;
+                }
+
+                processSellTransactionPriceMovement(stock, mvmtShares, PositionTypes.Long);
+                expect(stock.price).to.equal(getNthPrice(4));
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+
+            it("should properly evaluate SHORT transactions that trigger price movements", function() {
+                const oldPrice = stock.price;
+                function getNthPrice(n) {
+                    let price = oldPrice;
+                    for (let i = 1; i < n; ++i) {
+                        price *= calculateIncreasingPriceMovement(stock);
+                    }
+
+                    return price;
+                }
+
+                processSellTransactionPriceMovement(stock, mvmtShares, PositionTypes.Short);
+                expect(stock.price).to.equal(getNthPrice(4));
+                expect(stock.shareTxUntilMovement).to.equal(stock.shareTxForMovement - noMvmtShares);
+            });
+        });
+    });
+});

tests/index.html

@@ -3,17 +3,20 @@
     <head>
         <meta charset="utf-8">
         <title>Mocha Tests</title>
-        <link href="https://unpkg.com/mocha@4.0.1/mocha.css" rel="stylesheet" />
+        <link href="https://unpkg.com/mocha@6.1.4/mocha.css" rel="stylesheet" />
     </head>
     <body>
         <div id="mocha"></div>
 
-        <script src="https://unpkg.com/mocha@4.0.1/mocha.js"></script>
+        <script src="https://unpkg.com/chai/chai.js"></script>
+        <script src="https://unpkg.com/mocha/mocha.js"></script>
 
-        <script>mocha.setup('bdd')</script>
+        <script class="mocha-init">
-        <script type="module" src="tests.bundle.js"></script>
+            mocha.setup('bdd');
-        <script type="module">
             mocha.checkLeaks();
+        </script>
+        <script type="module" src="tests.bundle.js"></script>
+        <script class="mocha-exec" type="module">
             mocha.run();
         </script>
     </body>

tests/index.js

@@ -1,3 +1 @@
-//require("babel-core/register");
+export * from "./StockMarketTests";
-//require("babel-polyfill");
-module.exports = require("./NetscriptJSTest.js");