More abilities

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

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+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+/// <summary>
+/// Flower Gift is an ability that boosts the Attack and Special Defense of the Pokémon and its allies in sunlight.
+/// This ability is exclusive to Cherrim.
+///
+/// <see href="https://bulbapedia.bulbagarden.net/wiki/Flower_Gift_(Ability)">Bulbapedia - Flower Gift</see>
+/// </summary>
+[Script(ScriptCategory.Ability, "flower_gift")]
+public class FlowerGift : Script
+{
+    private IPokemon? _pokemon;
+
+    /// <inheritdoc />
+    public override void OnAddedToParent(IScriptSource source)
+    {
+        if (source is not IPokemon pokemon)
+            throw new InvalidOperationException("Flower Gift can only be added to a Pokemon script source.");
+        _pokemon = pokemon;
+        var effect = _pokemon.BattleData?.BattleSide.VolatileScripts.Add(new Side.FlowerGiftEffect());
+        (effect?.Script as Side.FlowerGiftEffect)?.OnAdded(_pokemon);
+    }
+
+    /// <inheritdoc />
+    public override void OnWeatherChange(IBattle battle, StringKey? weatherName, StringKey? oldWeatherName)
+    {
+        if (_pokemon is null)
+            return;
+        if (weatherName != ScriptUtils.ResolveName<Weather.HarshSunlight>())
+            return;
+        if (_pokemon.Species.Name != "cherrim")
+            return;
+        EventBatchId batchId = new();
+        if (_pokemon.Species.TryGetForm("sunshine", out var form) && _pokemon.Form != form)
+        {
+            _pokemon.ChangeForm(form, batchId);
+        }
+    }
+
+    /// <inheritdoc />
+    public override void OnRemove()
+    {
+        if (_pokemon is null)
+            return;
+        if (_pokemon.BattleData?.BattleSide.VolatileScripts.TryGet<Side.FlowerGiftEffect>(out var script) == true)
+        {
+            script.OnRemoved(_pokemon);
+        }
+
+        if (_pokemon.Species.Name != "cherrim")
+            return;
+
+        EventBatchId batchId = new();
+        var defaultForm = _pokemon.Species.GetDefaultForm();
+        if (_pokemon.Form != defaultForm)
+        {
+            _pokemon.ChangeForm(defaultForm, batchId);
+        }
+    }
+}