More work on refactor to interfaces

Plugins/PkmnLib.Plugin.Gen7/Scripts/Abilities/GrassPelt.cs

@@ -7,11 +7,11 @@ namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
 /// <see href="https://bulbapedia.bulbagarden.net/wiki/Grass_Pelt_(Ability)">Bulbapedia - Grass Pelt</see>
 /// </summary>
 [Script(ScriptCategory.Ability, "grass_pelt")]
-public class GrassPelt : Script
+public class GrassPelt : Script, IScriptChangeIncomingMoveDefensiveStatValue
 {
     /// <inheritdoc />
-    public override void ChangeIncomingMoveDefensiveStatValue(IExecutingMove move, IPokemon target, byte hit,
-        uint offensiveStat, StatisticSet<uint> statisticSet, Statistic stat, ref uint value)
+    public void ChangeIncomingMoveDefensiveStatValue(IExecutingMove move, IPokemon target, byte hit, uint offensiveStat,
+        StatisticSet<uint> statisticSet, Statistic stat, ref uint value)
     {
         if (move.Battle.TerrainName == ScriptUtils.ResolveName<Terrain.GrassyTerrain>() && stat == Statistic.Defense)
             value = value.MultiplyOrMax(1.5f);