Refactor source files and add berries

src/data/battle-stat.ts

@@ -0,0 +1,63 @@
+export enum BattleStat {
+  ATK,
+  DEF,
+  SPATK,
+  SPDEF,
+  SPD,
+  ACC,
+  EVA,
+  RAND
+}
+
+export function getBattleStatName(stat: BattleStat) {
+  switch (stat) {
+    case BattleStat.ATK:
+      return 'ATTACK';
+    case BattleStat.DEF:
+      return 'DEFENSE';
+    case BattleStat.SPATK:
+      return 'SP. ATK';
+    case BattleStat.SPDEF:
+      return 'SP. DEF';
+    case BattleStat.SPD:
+      return 'SPEED';
+    case BattleStat.ACC:
+      return 'accuracy';
+    case BattleStat.EVA:
+      return 'evasiveness';
+    default:
+      return '???';
+  }
+}
+
+export function getBattleStatLevelChangeDescription(levels: integer, up: boolean) {
+  if (up) {
+    switch (levels) {
+      case 1:
+        return 'rose';
+      case 2:
+        return 'sharply rose';
+      case 3:
+      case 4:
+      case 5:
+      case 6:
+        return 'rose drastically'; 
+      default:
+        return 'won\'t go any higher';
+    }
+  } else {
+    switch (levels) {
+      case 1:
+        return 'fell';
+      case 2:
+        return 'harshly fell';
+      case 3:
+      case 4:
+      case 5:
+      case 6:
+        return 'severely fell';
+      default:
+        return 'won\'t go any lower';
+    }
+  }
+}