Re-added the getStockPurchaseCost() and getStockSaleGain() functions so we don't break user scripts

doc/source/netscript/netscriptixapi.rst

@@ -22,6 +22,8 @@ access even after you 'reset' by installing Augmentations
     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/getStockPurchaseCost.rst

@@ -0,0 +1,14 @@
+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>`
+    and commission fees.

doc/source/netscript/tixapi/getStockSaleGain.rst

@@ -0,0 +1,14 @@
+getStockSaleGain() Netscript Function
+=====================================
+
+ .. js:function:: getStockSaleGain(sym, shares, posType)
+
+    :param string sym: Stock symbol
+    :param number shares: Number of shares to sell
+    :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>`
+    and commission fees.

src/Constants.ts

@@ -224,10 +224,10 @@ export let CONSTANTS: IMap<any> = {
     v0.47.0
     * Stock Market changes:
     ** Transactions no longer influence stock prices (but they still influence forecast)
-    ** Removed getStockPurchaseCost() and getStockSaleGain() Netscript functions
-    **
 
     * Scripts now start/stop instantly
+    * Improved performance when starting up many copies of a new script (by Ornedan)
+    * Dialog boxes can now be closed with the ESC key (by jaguilar)
 
     v0.47.0
     * Stock Market changes:

src/NetscriptFunctions.js

@@ -98,6 +98,10 @@ import {
     cancelOrder,
     displayStockMarketContent,
 } 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";
@@ -1492,6 +1496,48 @@ function NetscriptFunctions(workerScript) {
 
             return stock.maxShares;
         },
+        getStockPurchaseCost: function(symbol, shares, posType) {
+            updateDynamicRam("getStockPurchaseCost", getRamCost("getStockPurchaseCost"));
+            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) {
+            updateDynamicRam("getStockSaleGain", getRamCost("getStockSaleGain"));
+            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) {
             updateDynamicRam("buyStock", getRamCost("buyStock"));
             checkTixApiAccess("buyStock");

src/StockMarket/StockMarket.jsx

@@ -203,6 +203,9 @@ export function stockMarketCycle() {
         } else if (roll < 0.8) {
             stock.otlkMagForecast -= 0.5;
             stock.otlkMagForecast = stock.otlkMagForecast * (1 / 1.02);
+        } else if (roll < 0.9) {
+            stock.b = !stock.b;
+            stock.flipForecastForecast();
         }
     }
 }