[Move] Implement Punishment (#1610)

* Implement Punishment and reopen pull request 373

* Fix console log and ()

src/data/move.ts

@@ -2704,12 +2704,57 @@ export class HitCountPowerAttr extends VariablePowerAttr {
   }
 }
 
+/**
+ * Turning a once was (StatChangeCountPowerAttr) statement and making it available to call for any attribute.
+ * @param {Pokemon} pokemon The pokemon that is being used to calculate the count of positive stats
+ * @returns {number} Returns the amount of positive stats
+ */
+const countPositiveStats = (pokemon: Pokemon): number => {
+  return pokemon.summonData.battleStats.reduce((total, stat) => (stat && stat > 0) ? total + stat : total, 0);
+};
+
+/**
+ * Attribute that increases power based on the amount of positive stat increases.
+ */
 export class StatChangeCountPowerAttr extends VariablePowerAttr {
+
+  /**
+   * @param {Pokemon} user The pokemon that is being used to calculate the amount of positive stats
+   * @param {Pokemon} target N/A
+   * @param {Move} move N/A
+   * @param {any[]} args The argument for VariablePowerAttr, accumulates and sets the amount of power multiplied by stats
+   * @returns {boolean} Returns true if attribute is applied
+   */
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
-    const positiveStats: number = user.summonData.battleStats.reduce((total, stat) => stat > 0 && stat ? total + stat : total, 0);
+    const positiveStats: number = countPositiveStats(user);
 
     (args[0] as Utils.NumberHolder).value += positiveStats * 20;
+    return true;
+  }
+}
 
+/**
+ * Punishment normally has a base power of 60,
+ * but gains 20 power for every increased stat stage the target has,
+ * up to a maximum of 200 base power in total.
+ */
+export class PunishmentPowerAttr extends VariablePowerAttr {
+  private PUNISHMENT_MIN_BASE_POWER = 60;
+  private PUNISHMENT_MAX_BASE_POWER = 200;
+
+  /**
+     * @param {Pokemon} user N/A
+     * @param {Pokemon} target The pokemon that the move is being used against, as well as calculating the stats for the min/max base power
+     * @param {Move} move N/A
+     * @param {any[]} args The value that is being changed due to VariablePowerAttr
+     * @returns Returns true if attribute is applied
+     */
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+    const positiveStats: number = countPositiveStats(target);
+    (args[0] as Utils.NumberHolder).value = Math.min(
+      this.PUNISHMENT_MAX_BASE_POWER,
+      this.PUNISHMENT_MIN_BASE_POWER + positiveStats * 20
+    );
     return true;
   }
 }
@@ -6065,7 +6110,8 @@ export function initMoves() {
     new StatusMove(Moves.GUARD_SWAP, Type.PSYCHIC, -1, 10, -1, 0, 4)
       .unimplemented(),
     new AttackMove(Moves.PUNISHMENT, Type.DARK, MoveCategory.PHYSICAL, -1, 100, 5, -1, 0, 4)
-      .unimplemented(),
+      .makesContact(true)
+      .attr(PunishmentPowerAttr),
     new AttackMove(Moves.LAST_RESORT, Type.NORMAL, MoveCategory.PHYSICAL, 140, 100, 5, -1, 0, 4)
       .attr(LastResortAttr),
     new StatusMove(Moves.WORRY_SEED, Type.GRASS, 100, 10, -1, 0, 4)