Move import save functionality into SaveObject

Adds a lot of metadata to be able to easily compare the new save to the
current player.

- Adds lastSaved & identifier to the PlayerObject
- Includes a hash method used to generate an identifier

src/PersonObjects/Player/PlayerObject.ts

@@ -35,7 +35,9 @@ import { CityName } from "../../Locations/data/CityNames";
 import { MoneySourceTracker } from "../../utils/MoneySourceTracker";
 import { Reviver, Generic_toJSON, Generic_fromJSON } from "../../utils/JSONReviver";
 import { ISkillProgress } from "../formulas/skill";
-import { PlayerAchievement } from '../../Achievements/Achievements';
+import { PlayerAchievement } from "../../Achievements/Achievements";
+import { cyrb53 } from "../../utils/StringHelperFunctions";
+import { getRandomInt } from "../../utils/helpers/getRandomInt";
 
 export class PlayerObject implements IPlayer {
   // Class members
@@ -78,7 +80,9 @@ export class PlayerObject implements IPlayer {
   exploits: Exploit[];
   achievements: PlayerAchievement[];
   terminalCommandHistory: string[];
+  identifier: string;
   lastUpdate: number;
+  lastSave: number;
   totalPlaytime: number;
 
   // Stats
@@ -460,7 +464,9 @@ export class PlayerObject implements IPlayer {
 
     //Used to store the last update time.
     this.lastUpdate = 0;
+    this.lastSave = 0;
     this.totalPlaytime = 0;
+
     this.playtimeSinceLastAug = 0;
     this.playtimeSinceLastBitnode = 0;
 
@@ -474,6 +480,16 @@ export class PlayerObject implements IPlayer {
     this.achievements = [];
     this.terminalCommandHistory = [];
 
+    // Let's get a hash of some semi-random stuff so we have something unique.
+    this.identifier = cyrb53(
+      "I-" +
+        new Date().getTime() +
+        navigator.userAgent +
+        window.innerWidth +
+        window.innerHeight +
+        getRandomInt(100, 999),
+    );
+
     this.init = generalMethods.init;
     this.prestigeAugmentation = generalMethods.prestigeAugmentation;
     this.prestigeSourceFile = generalMethods.prestigeSourceFile;