Fixed Golden Cookie percentage calculation to cdf #921 (#1190)

* Added cummulative probability handling

* executed build-dev command

* executed build-final command

src/Main/CheckStates/Probability.js

@@ -0,0 +1,50 @@
+/**
+ * The probability that a GC or reindeer has NOT spawned
+ */
+let chanceTotal = 1.0;
+let chanceTotalDeer = 1.0;
+
+export function resetChanceTotal() {
+  chanceTotal = 1.0;
+}
+
+export function resetChanceTotalDeer() {
+  chanceTotalDeer = 1.0;
+}
+
+export function getChanceTotal() {
+  return chanceTotal;
+}
+
+export function getChanceTotalDeer() {
+  return chanceTotalDeer;
+}
+/**
+ * Update the probability that a cookie has not spawned
+ * @param {number} chanceToSpawn The probablity that a GC appears
+ */
+export function updateChanceTotal(chanceToSpawn) {
+  chanceTotal *= 1 - chanceToSpawn;
+}
+
+/**
+ * Update the probability that a reindeer has not spawned
+ * @param {number} chanceToSpawn The probablity that a reindeer appears
+ */
+export function updateChanceTotalDeer(chanceToSpawn) {
+  chanceTotalDeer *= 1 - chanceToSpawn;
+}
+/**
+ *
+ * @returns the cummulative probability that a GC has appeared from beginning to now
+ */
+export function getChanceFinal() {
+  return 1 - chanceTotal;
+}
+/**
+ *
+ * @returns the cummulative probability that a reindeer has appeared from beginning to now
+ */
+export function getChanceFinalDeer() {
+  return 1 - chanceTotalDeer;
+}