More moves, allow for typeless moves

PkmnLib.Dynamic/ScriptHandling/Script.cs

@@ -216,8 +216,10 @@ public abstract class Script : IDeepCloneable
 
     /// <summary>
     /// This function allows the script to change the actual type that is used for the move on a target.
+    /// If this is set to null, the move will be treated as a typeless move.
     /// </summary>
-    public virtual void ChangeMoveType(IExecutingMove move, IPokemon target, byte hit, ref TypeIdentifier moveType)
+    public virtual void ChangeMoveType(IExecutingMove move, IPokemon target, byte hit,
+        ref TypeIdentifier? typeIdentifier)
     {
     }
 
@@ -601,20 +603,35 @@ public abstract class Script : IDeepCloneable
     {
     }
 
+    /// <summary>
+    /// This function allows a script to change the types a target has. Multiple types can be set, and will be used
+    /// for the effectiveness calculation.
+    /// </summary>
     public virtual void ChangeTypesForMove(IExecutingMove executingMove, IPokemon target, byte hitIndex,
         IList<TypeIdentifier> types)
     {
     }
 
+    /// <summary>
+    /// This function allows a script to change the types a Pokemon has for a move that's incoming. Multiple types can
+    /// be set, and will be used for the effectiveness calculation.
+    /// </summary>
     public virtual void ChangeTypesForIncomingMove(IExecutingMove executingMove, IPokemon target, byte hitIndex,
         IList<TypeIdentifier> types)
     {
     }
 
+    /// <summary>
+    /// This function allows a script to change the handling of the move category. This is used for moves that
+    /// are sometimes a status move, and sometimes a damaging move, such as pollen puff.
+    /// </summary>
     public virtual void ChangeCategory(IExecutingMove move, IPokemon target, byte hitIndex, ref MoveCategory category)
     {
     }
 
+    /// <summary>
+    /// Triggers first when we're about to hit a target. 
+    /// </summary>
     public virtual void OnBeforeHit(IExecutingMove move, IPokemon target, byte hitIndex)
     {
     }