feat: New features (research, invest, gambling, new game+, trophies)

public/js/engine/formulas.js

@@ -4,6 +4,14 @@ export function clamp(value, min, max) {
   return Math.min(max, Math.max(min, value));
 }
 
+/**
+ * Demand bonus from owning chips: diminishing returns (logarithmic), so a big
+ * lucky streak can never run away with the game.
+ */
+export function chipDemandBonus(chips, gamble) {
+  return 1 + gamble.chipBonusScale * Math.log2(1 + Math.max(0, chips));
+}
+
 /** Price of the next item when `owned` items are already owned. */
 export function unitCost(base, growth, owned) {
   return base * growth ** owned;