Implement increasing costs.

js/game.js

@@ -62,6 +62,7 @@
     item.research = function () {
       if (lab.research(this.cost, this.reputation)) {
         this.level++;
+        this.cost = Math.round(this.cost * this.cost_increase);
       }
     };
   });
@@ -78,6 +79,7 @@
     worker.hire = function() {
       if (lab.buy(this.cost)) {
         this.hired++;
+        this.cost = Math.round(this.cost * this.cost_increase);
       }
     };
   });

json/research.json

@@ -4,6 +4,7 @@
     "description": "The W-Boson is the carrier boson of the weak force.",
     "reputation": 1,
     "cost": 10,
+    "cost_increase": 1.2,
     "histogram": {}
   },
   {
@@ -11,6 +12,7 @@
     "description": "The Higgs-Boson...",
     "reputation": 100,
     "cost": 1000,
+    "cost_increase": 1.2,
     "histogram": {}
   }
 ]

json/workers.json

@@ -3,14 +3,14 @@
     "name": "PhD Students",
     "description": "Basically slaves, just with fewer rights.",
     "cost": 100,
-    "sell": 80,
+    "cost_increase": 1.4,
     "rate": 1
   },
   {
     "name": "Postdocs",
     "description": "Can get shit done for you.",
     "cost": 1000,
-    "sell": 700,
+    "cost_increase": 1.4,
     "rate": 10
   }
 ]