More abilities

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

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+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+/// <summary>
+/// Intimidate is an ability that lowers the opposing Pokémon's Attack stat when the Pokémon enters battle.
+///
+/// <see href="https://bulbapedia.bulbagarden.net/wiki/Intimidate_(Ability)">Bulbapedia - Intimidate</see>
+/// </summary>
+[Script(ScriptCategory.Ability, "intimidate")]
+public class Intimidate : Script
+{
+    /// <inheritdoc />
+    public override void OnSwitchIn(IPokemon pokemon, byte position)
+    {
+        var battle = pokemon.BattleData?.Battle;
+        if (battle is null)
+            return;
+
+        var opponents = battle.Sides.Where(side => side != pokemon.BattleData?.BattleSide)
+            .SelectMany(side => side.Pokemon).WhereNotNull().Where(opponent => opponent.IsUsable);
+        EventBatchId batchId = new();
+
+        battle.EventHook.Invoke(new AbilityTriggerEvent(pokemon));
+        foreach (var opponent in opponents)
+        {
+            opponent.ChangeStatBoost(Statistic.Attack, -1, true, true, batchId);
+        }
+    }
+}