More abilities

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

@@ -0,0 +1,18 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+/// <summary>
+/// Keen Eye is an ability that prevents the Pokémon's accuracy from being lowered.
+///
+/// <see href="https://bulbapedia.bulbagarden.net/wiki/Keen_Eye_(Ability)">Bulbapedia - Keen Eye</see>
+/// </summary>
+[Script(ScriptCategory.Ability, "keen_eye")]
+public class KeenEye : Script
+{
+    /// <inheritdoc />
+    public override void PreventStatBoostChange(IPokemon target, Statistic stat, sbyte amount, bool selfInflicted,
+        ref bool prevent)
+    {
+        if (stat == Statistic.Accuracy && amount < 0)
+            prevent = true;
+    }
+}