Implements more move effects

PkmnLib.Dynamic/Models/LearnedMove.cs

@@ -80,6 +80,12 @@ public interface ILearnedMove : IDeepCloneable
     /// Restore the remaining PP by a certain amount. Will prevent it from going above max PP.
     /// </summary>
     void RestoreUses(byte amount);
+
+    /// <summary>
+    /// Forcibly set the remaining PP to a certain amount.
+    /// </summary>
+    /// <param name="uses"></param>
+    void SetCurrentPP(byte uses);
 }
 
 /// <inheritdoc />
@@ -136,4 +142,10 @@ public class LearnedMoveImpl : ILearnedMove
     /// Restore the PP by a certain amount. This will prevent the PP from going above the maximum PP.
     /// </summary>
     public void RestoreUses(byte amount) => CurrentPp = (byte)Math.Min(CurrentPp + amount, MaxPp);
+
+    /// <inheritdoc />
+    public void SetCurrentPP(byte uses)
+    {
+        CurrentPp = Math.Min(uses, MaxPp);
+    }
 }

PkmnLib.Dynamic/Models/Pokemon.cs

@@ -1091,6 +1091,7 @@ public class PokemonImpl : ScriptSource, IPokemon
                 Types = Form.Types;
                 OverrideAbility = null;
                 AbilitySuppressed = false;
+                RecalculateFlatStats();
             }
         }
     }

PkmnLib.Dynamic/ScriptHandling/ScriptSet.cs

@@ -21,7 +21,7 @@ public interface IScriptSet : IEnumerable<ScriptContainer>
     /// Adds a script with a name to the set. If the script with that name already exists in this
     /// set, this makes that script stack instead. The return value here is that script.
     /// </summary>
-    ScriptContainer? StackOrAdd(StringKey scriptKey, Func<Script> instantiation);
+    ScriptContainer? StackOrAdd(StringKey scriptKey, Func<Script?> instantiation);
 
     /// <summary>
     /// Gets a script from the set using its unique name.