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

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

@@ -0,0 +1,30 @@
+using System.Linq;
+using PkmnLib.Plugin.Gen7.Scripts.Utils;
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
+
+[Script(ScriptCategory.Move, "mirror_move")]
+public class MirrorMove : Script
+{
+    /// <inheritdoc />
+    public override void ChangeMove(IMoveChoice choice, ref StringKey moveName)
+    {
+        var battleData = choice.User.BattleData;
+        if (battleData == null)
+            return;
+
+        var battle = battleData.Battle;
+        var currentTurn = battle.ChoiceQueue!.LastRanChoice;
+        var lastMove = battle.PreviousTurnChoices.SelectMany(x => x).OfType<IMoveChoice>()
+            .TakeWhile(x => x != currentTurn).LastOrDefault(x => x.TargetPosition == choice.TargetPosition &&
+                                                                 x.TargetSide == choice.TargetSide &&
+                                                                 x.User.BattleData?.IsOnBattlefield == true);
+        if (lastMove == null || !lastMove.ChosenMove.MoveData.CanCopyMove())
+        {
+            choice.Fail();
+            return;
+        }
+        moveName = lastMove.ChosenMove.MoveData.Name;
+    }
+}