More abilities

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

@@ -0,0 +1,29 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+/// <summary>
+/// Overcoat is an ability that protects the Pokémon from weather damage and powder moves.
+///
+/// <see href="https://bulbapedia.bulbagarden.net/wiki/Overcoat_(Ability)">Bulbapedia - Overcoat</see>
+/// </summary>
+[Script(ScriptCategory.Ability, "overcoat")]
+public class Overcoat : Script
+{
+    /// <inheritdoc />
+    public override void CustomTrigger(StringKey eventName, ICustomTriggerArgs args)
+    {
+        if (eventName == CustomTriggers.IgnoreHail && args is CustomTriggers.IgnoreHailArgs hailArgs)
+        {
+            hailArgs.Ignore = true;
+        }
+        // TODO: Ignore sandstorm damage
+    }
+
+    /// <inheritdoc />
+    public override void IsInvulnerableToMove(IExecutingMove move, IPokemon target, ref bool invulnerable)
+    {
+        if (move.UseMove.HasFlag("powder"))
+        {
+            invulnerable = true;
+        }
+    }
+}