Add optional count parameter to hashCost and spendHashes

src/Hacknet/HacknetHelpers.tsx

@@ -467,7 +467,7 @@ export function updateHashManagerCapacity(player: IPlayer): void {
   player.hashManager.updateCapacity(total);
 }
 
-export function purchaseHashUpgrade(player: IPlayer, upgName: string, upgTarget: string): boolean {
+export function purchaseHashUpgrade(player: IPlayer, upgName: string, upgTarget: string, count = 1): boolean {
   if (!(player.hashManager instanceof HashManager)) {
     console.error(`Player does not have a HashManager`);
     return false;
@@ -475,21 +475,21 @@ export function purchaseHashUpgrade(player: IPlayer, upgName: string, upgTarget:
 
   // HashManager handles the transaction. This just needs to actually implement
   // the effects of the upgrade
-  if (player.hashManager.upgrade(upgName)) {
+  if (player.hashManager.upgrade(upgName, count)) {
     const upg = HashUpgrades[upgName];
 
     switch (upgName) {
       case "Sell for Money": {
-        player.gainMoney(upg.value, "hacknet");
+        player.gainMoney(upg.value * count, "hacknet");
         break;
       }
       case "Sell for Corporation Funds": {
         const corp = player.corporation;
         if (corp === null) {
-          player.hashManager.refundUpgrade(upgName);
+          player.hashManager.refundUpgrade(upgName, count);
           return false;
         }
-        corp.funds = corp.funds + upg.value;
+        corp.funds = corp.funds + upg.value * count;
         break;
       }
       case "Reduce Minimum Security": {
@@ -501,9 +501,9 @@ export function purchaseHashUpgrade(player: IPlayer, upgName: string, upgTarget:
           }
           if (!(target instanceof Server)) throw new Error(`'${upgTarget}' is not a normal server.`);
 
-          target.changeMinimumSecurity(upg.value, true);
+          target.changeMinimumSecurity(upg.value ** count, true);
         } catch (e) {
-          player.hashManager.refundUpgrade(upgName);
+          player.hashManager.refundUpgrade(upgName, count);
           return false;
         }
         break;
@@ -517,9 +517,12 @@ export function purchaseHashUpgrade(player: IPlayer, upgName: string, upgTarget:
           }
           if (!(target instanceof Server)) throw new Error(`'${upgTarget}' is not a normal server.`);
 
-          target.changeMaximumMoney(upg.value);
+          //Manually loop the change so as to properly handle the softcap
+          for (let i = 0; i < count; i++) {
+            target.changeMaximumMoney(upg.value);
+          }
         } catch (e) {
-          player.hashManager.refundUpgrade(upgName);
+          player.hashManager.refundUpgrade(upgName, count);
           return false;
         }
         break;
@@ -536,11 +539,11 @@ export function purchaseHashUpgrade(player: IPlayer, upgName: string, upgTarget:
         // This will throw if player doesn't have a corporation
         const corp = player.corporation;
         if (corp === null) {
-          player.hashManager.refundUpgrade(upgName);
+          player.hashManager.refundUpgrade(upgName, count);
           return false;
         }
         for (const division of corp.divisions) {
-          division.sciResearch.qty += upg.value;
+          division.sciResearch.qty += upg.value * count;
         }
         break;
       }
@@ -548,30 +551,32 @@ export function purchaseHashUpgrade(player: IPlayer, upgName: string, upgTarget:
         // This will throw if player isnt in Bladeburner
         const bladeburner = player.bladeburner;
         if (bladeburner === null) {
-          player.hashManager.refundUpgrade(upgName);
+          player.hashManager.refundUpgrade(upgName, count);
           return false;
         }
-        bladeburner.changeRank(player, upg.value);
+        bladeburner.changeRank(player, upg.value * count);
         break;
       }
       case "Exchange for Bladeburner SP": {
         // This will throw if player isnt in Bladeburner
         const bladeburner = player.bladeburner;
         if (bladeburner === null) {
-          player.hashManager.refundUpgrade(upgName);
+          player.hashManager.refundUpgrade(upgName, count);
           return false;
         }
 
-        bladeburner.skillPoints += upg.value;
+        bladeburner.skillPoints += upg.value * count;
         break;
       }
       case "Generate Coding Contract": {
-        generateRandomContract();
+        for (let i = 0; i < count; i++) {
+          generateRandomContract();
+        }
         break;
       }
       default:
         console.warn(`Unrecognized upgrade name ${upgName}. Upgrade has no effect`);
-        player.hashManager.refundUpgrade(upgName);
+        player.hashManager.refundUpgrade(upgName, count);
         return false;
     }
 

src/Hacknet/HashManager.ts

@@ -73,7 +73,7 @@ export class HashManager {
   /**
    * Get the cost (in hashes) of an upgrade
    */
-  getUpgradeCost(upgName: string): number {
+  getUpgradeCost(upgName: string, count = 1): number {
     const upg = this.getUpgrade(upgName);
     const currLevel = this.upgrades[upgName];
     if (upg == null || currLevel == null) {
@@ -81,7 +81,7 @@ export class HashManager {
       return Infinity;
     }
 
-    return upg.getCost(currLevel);
+    return upg.getCost(currLevel, count);
   }
 
   prestige(): void {
@@ -97,11 +97,11 @@ export class HashManager {
   /**
    * Reverts an upgrade and refunds the hashes used to buy it
    */
-  refundUpgrade(upgName: string): void {
+  refundUpgrade(upgName: string, count = 1): void {
     const upg = HashUpgrades[upgName];
 
     // Reduce the level first, so we get the right cost
-    --this.upgrades[upgName];
+    this.upgrades[upgName] -= count;
 
     const currLevel = this.upgrades[upgName];
     if (upg == null || currLevel == null || currLevel < 0) {
@@ -109,7 +109,7 @@ export class HashManager {
       return;
     }
 
-    const cost = upg.getCost(currLevel);
+    const cost = upg.getCost(currLevel, count);
     this.hashes += cost;
   }
 
@@ -137,21 +137,21 @@ export class HashManager {
    * Returns boolean indicating whether or not the upgrade was successfully purchased
    * Note that this does NOT actually implement the effect
    */
-  upgrade(upgName: string): boolean {
+  upgrade(upgName: string, count = 1): boolean {
     const upg = HashUpgrades[upgName];
     if (upg == null) {
       console.error(`Invalid Upgrade Name given to HashManager.upgrade(): ${upgName}`);
       return false;
     }
 
-    const cost = this.getUpgradeCost(upgName);
+    const cost = this.getUpgradeCost(upgName, count);
 
     if (this.hashes < cost) {
       return false;
     }
 
     this.hashes -= cost;
-    ++this.upgrades[upgName];
+    this.upgrades[upgName] += count;
 
     return true;
   }

src/Hacknet/HashUpgrade.ts

@@ -62,11 +62,15 @@ export class HashUpgrade {
   // Functions that returns the UI element to display the effect of this upgrade.
   effectText: (level: number) => JSX.Element | null = () => null;
 
-  getCost(levels: number): number {
+  getCost(currentLevel: number, count = 1): number {
     if (typeof this.cost === "number") {
-      return this.cost;
+      return this.cost * count;
     }
 
-    return Math.round((levels + 1) * this.costPerLevel);
+    //This formula is equivalent to
+    //(currentLevel + 1) * this.costPerLevel
+    //being performed repeatedly
+    const collapsedSum = 0.5 * count * (count + 2 * currentLevel + 1);
+    return this.costPerLevel * collapsedSum;
   }
 }

src/NetscriptFunctions/Hacknet.ts

@@ -188,23 +188,25 @@ export function NetscriptHacknet(player: IPlayer, workerScript: WorkerScript): I
     },
     hashCost:
       (ctx: NetscriptContext) =>
-      (_upgName: unknown): number => {
+      (_upgName: unknown, _count: unknown = 1): number => {
         const upgName = ctx.helper.string("upgName", _upgName);
+        const count = ctx.helper.number("count", _count);
         if (!hasHacknetServers(player)) {
           return Infinity;
         }
 
-        return player.hashManager.getUpgradeCost(upgName);
+        return player.hashManager.getUpgradeCost(upgName, count);
       },
     spendHashes:
       (ctx: NetscriptContext) =>
-      (_upgName: unknown, _upgTarget: unknown = ""): boolean => {
+      (_upgName: unknown, _upgTarget: unknown = "", _count: unknown = 1): boolean => {
         const upgName = ctx.helper.string("upgName", _upgName);
         const upgTarget = ctx.helper.string("upgTarget", _upgTarget);
+        const count = ctx.helper.number("count", _count);
         if (!hasHacknetServers(player)) {
           return false;
         }
-        return purchaseHashUpgrade(player, upgName, upgTarget);
+        return purchaseHashUpgrade(player, upgName, upgTarget, count);
       },
     getHashUpgrades: () => (): string[] => {
       if (!hasHacknetServers(player)) {

src/ScriptEditor/NetscriptDefinitions.d.ts

@@ -2690,9 +2690,10 @@ export interface Hacknet {
    * }
    * ```
    * @param upgName - Name of the upgrade of Hacknet Node.
+   * @param count - Number of upgrades to buy at once. Defaults to 1 if not specified.
    * @returns Number of hashes required for the specified upgrade.
    */
-  hashCost(upgName: string): number;
+  hashCost(upgName: string, count?: number): number;
 
   /**
    * Purchase a hash upgrade.
@@ -2722,9 +2723,11 @@ export interface Hacknet {
    * ```
    * @param upgName - Name of the upgrade of Hacknet Node.
    * @param upgTarget - Object to which upgrade applies. Required for certain upgrades.
+   * @param count - Number of upgrades to buy at once. Defaults to 1 if not specified.
+   * For compatability reasons, upgTarget must be specified, even if it is not used, in order to specify count.
    * @returns True if the upgrade is successfully purchased, and false otherwise..
    */
-  spendHashes(upgName: string, upgTarget?: string): boolean;
+  spendHashes(upgName: string, upgTarget?: string, count?: number): boolean;
 
   /**
    * Get the list of hash upgrades