Fix a bug where only the first stone evolution would be triggered (#519)

* Fix a bug where only the first stone evolution would be triggered

src/scripts/Changelog.ts

@@ -23,6 +23,7 @@ class Changelog {
 const changelogItems = [
     // v1.0.4
     new Changelog(changelogType.VERSION, 'v1.0.4'),
+    new Changelog(changelogType.FIXED, 'Stones now work with multiple evolutions'),
     new Changelog(changelogType.NEW, 'Add setting to toggle egg percentage/step count'),
     new Changelog(changelogType.CHANGE, 'Total shiny Pokemon caught no longer adds to your click attack'),
     new Changelog(changelogType.CHANGE, 'Halve xp needed to upgrade Oak items'),

src/scripts/GameConstants.ts

@@ -273,6 +273,10 @@ namespace GameConstants {
         return Math.floor(Math.random() * (max - min + 1)) + min;
     }
 
+    export function randomElement(array: any[]) {
+        return array[GameConstants.randomIntBetween(0, array.length - 1)]
+    }
+
     export function clipNumber(num: number, min: number, max: number) {
         return Math.min(Math.max(num, min), max);
     }

src/scripts/party/PartyPokemon.ts

@@ -75,11 +75,15 @@ class PartyPokemon implements Saveable {
     }
 
     public useStone(type: GameConstants.StoneType): boolean {
+        const possibleEvolutions = [];
         for (const evolution of this.evolutions) {
             if (evolution instanceof StoneEvolution && evolution.stone == type) {
-                return evolution.evolve()
+                possibleEvolutions.push(evolution);
             }
         }
+        if (possibleEvolutions.length !== 0) {
+            return GameConstants.randomElement(possibleEvolutions).evolve();
+        }
         return false;
     }