Tweaks and fixes for Pokemon capture

PkmnLib.Dynamic/ScriptHandling/PokeballScript.cs

@@ -25,6 +25,16 @@ public abstract class PokeballScript : ItemScript
         // Override this method in derived classes to add custom behavior after a successful capture.
     }
 
+    /// <inheritdoc />
+    public override bool IsItemUsable => true;
+
+    /// <inheritdoc />
+    public override bool RequiresTarget => true;
+
+    /// <inheritdoc />
+    public override bool IsTargetValid(IPokemon target) =>
+        target.BattleData is not null && target.BattleData.Battle.IsWildBattle;
+
     /// <inheritdoc />
     public override void OnUseWithTarget(IPokemon target, EventHook eventHook)
     {