Adds effects for after you, assist, and attract

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

@@ -0,0 +1,32 @@
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Dynamic.ScriptHandling;
+using PkmnLib.Dynamic.ScriptHandling.Registry;
+
+namespace PkmnLib.Plugin.Gen7.Moves;
+
+/// <summary>
+/// The user helps the target and makes it use its move right after the user. 
+/// </summary>
+/// <remarks>
+/// The target will move next on the current turn, ignoring priority. After You bypasses accuracy checks to always hit,
+/// unless the target is in the semi-invulnerable turn of a move such as Dig or Fly. It fails if the target has already
+/// moved on the same turn. After You ignores the effects of Quash.
+/// After You fails if the order remains the same after using After You. 
+/// </remarks>
+[Script(ScriptCategory.Move, "after_you")]
+public class AfterYou : Script
+{
+    /// <inheritdoc />
+    public override void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
+    {
+        var queue = move.User.BattleData!.Battle.ChoiceQueue;
+        if (queue == null)
+            return;
+        
+        // If the queue doesn't change, the move fails
+        if (!queue.MovePokemonChoiceNext(target))
+        {
+            move.GetHitData(target, hit).Fail();
+        }
+    }
+}