full generation and upgrade rules revamp

web/src/state/Root.ts

@@ -1,6 +1,7 @@
 import { makeGame, ResourceGenerator, ResourceSet } from "@idle-economy/engine";
 import { makeAutoObservable } from "mobx";
 import { Notation, Presets } from 'eternal_notations';
+import { now } from "../tools/time";
 
 export class Root {
 
@@ -9,6 +10,8 @@ export class Root {
     public resources: ResourceSet = new ResourceSet();
     public generators: ResourceGenerator[] = [];
 
+    public lastGameTime = now();
+
     public readonly availableNotationNames: string[] = Object.keys(Presets).filter((n: any) => !!(Presets as any)[n].name).sort();
     public numberNotationName: keyof typeof Presets = 'Standard';
     public numberNotation: Notation = Presets.Standard;
@@ -19,6 +22,10 @@ export class Root {
 
         makeAutoObservable(this);
     }
+    
+    public setLastGameTime(value: number) {
+      this.lastGameTime = value;
+    }
 
     public tick(deltaTime: number): void {
         Array.from(this.game.tick(deltaTime));