Bunch more moves, changes in how additional information for items works.

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/MirrorCoat.cs

@@ -0,0 +1,51 @@
+using PkmnLib.Static.Moves;
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
+
+[Script(ScriptCategory.Move, "mirror_coat")]
+public class MirrorCoat : Script
+{
+    /// <inheritdoc />
+    public override void OnBeforeTurnStart(ITurnChoice choice)
+    {
+        choice.User.Volatile.Add(new MirrorCoatHelper());
+    }
+
+    /// <inheritdoc />
+    public override void ChangeMoveDamage(IExecutingMove move, IPokemon target, byte hit, ref uint damage)
+    {
+        var helper = target.Volatile.Get<MirrorCoatHelper>();
+
+        if (helper?.LastAttacker == null || helper.LastAttacker != move.User)
+        {
+            move.GetHitData(target, hit).Fail();
+            return;
+        }
+
+        damage = helper.LastDamage.MultiplyOrMax(2f);
+        target.Volatile.Remove<MirrorCoatHelper>();
+    }
+
+    [Script(ScriptCategory.Pokemon, "mirror_coat_helper")]
+    private class MirrorCoatHelper : Script
+    {
+        public IPokemon? LastAttacker { get; set; }
+        public uint LastDamage { get; set; }
+
+        /// <inheritdoc />
+        public override void OnIncomingHit(IExecutingMove move, IPokemon target, byte hit)
+        {
+            if (move.UseMove.Category != MoveCategory.Special)
+                return;
+            LastAttacker = move.User;
+            LastDamage = move.GetHitData(target, hit).Damage;
+        }
+
+        /// <inheritdoc />
+        public override void OnEndTurn(IBattle battle)
+        {
+            RemoveSelf();
+        }
+    }
+}