First couple abilities implemented

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

@@ -0,0 +1,35 @@
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+[Script(ScriptCategory.Ability, "bad_dreams")]
+public class BadDreams : Script
+{
+    private IPokemon? _owner;
+
+    /// <inheritdoc />
+    public override void OnAddedToParent(IScriptSource source)
+    {
+        if (source is not IPokemon pokemon)
+            throw new InvalidOperationException("Bad Dreams ability can only be added to a Pokemon.");
+        _owner = pokemon;
+    }
+
+    /// <inheritdoc />
+    public override void OnEndTurn(IBattle battle)
+    {
+        if (_owner is null)
+            return;
+        var opponents = battle.Sides.Where(x => x != _owner?.BattleData?.BattleSide).SelectMany(x => x.Pokemon)
+            .WhereNotNull();
+
+        foreach (var opponent in opponents)
+        {
+            if (!opponent.HasStatus(ScriptUtils.ResolveName<Status.Sleep>()))
+                continue;
+            EventBatchId batchId = new();
+            battle.EventHook.Invoke(new AbilityTriggerEvent(_owner));
+            opponent.Damage(opponent.MaxHealth / 8, DamageSource.Misc, batchId);
+        }
+    }
+}