Implements more abilities

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

@@ -0,0 +1,27 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+/// <summary>
+/// Desolate Land is an ability that creates extremely harsh sunlight when the Pokémon enters battle.
+/// This sunlight is so intense that it prevents other weather conditions and makes Water-type moves fail.
+/// This ability is exclusive to Primal Groudon.
+///
+/// <see href="https://bulbapedia.bulbagarden.net/wiki/Desolate_Land_(Ability)">Bulbapedia - Desolate Land</see>
+/// </summary>
+[Script(ScriptCategory.Ability, "desolate_land")]
+public class DesolateLandAbility : Script
+{
+    /// <inheritdoc />
+    public override void OnSwitchIn(IPokemon pokemon, byte position)
+    {
+        var battle = pokemon.BattleData?.Battle;
+        if (battle == null)
+            return;
+
+        battle.SetWeather(ScriptUtils.ResolveName<Weather.DesolateLands>(), -1);
+        if (battle.WeatherName == ScriptUtils.ResolveName<Weather.DesolateLands>())
+        {
+            ((Weather.DesolateLands)battle.WeatherScript.Script!).MarkAsPlaced(pokemon);
+            battle.EventHook.Invoke(new AbilityTriggerEvent(pokemon));
+        }
+    }
+}