cleaned up leaked resource streams

app/src/main/java/com/gc/necrogame/game/GameModel.kt

@@ -95,6 +95,8 @@ class GameModel(
                 val isr = InputStreamReader(fIn)
                 val raw = isr.readText()
                 val savedModel =  gson.fromJson(raw, GameModel::class.java)
+                isr.close()
+                fIn.close()
                 return GameModel(
                     workers = savedModel.workers,
                     fighters =  savedModel.fighters,

app/src/main/java/com/gc/necrogame/game/workers/Shade.kt

@@ -51,7 +51,7 @@ object Shade : GameStateUpdateable, Progressable, Purchasable, StateComponent {
 
     override fun maxPurcahsable(state: GameModel): Double {
         val margin =
-            floor(20.4959 * ln(Soul.getQty(state) - 1.0)) - getQty(state)
+            floor(20.4959 * ln((Soul.getQty(state)+ getSpecificCost(getQty(state))) - 1.0)) - getQty(state)
         return if (margin < 1.0) {
             0.0
         } else {