Work on item use/evolutions

PkmnLib.Dynamic/Models/Pokemon.cs

@@ -204,7 +204,7 @@ public interface IPokemon : IScriptSource, IDeepCloneable
     /// <summary>
     /// Marks the Pokemon as caught. This makes it so that the Pokemon is not considered valid in battle anymore.
     /// </summary>
-    public void MarkAsCaught();
+    void MarkAsCaught();
 
     /// <summary>
     /// The script for the held item.
@@ -293,7 +293,7 @@ public interface IPokemon : IScriptSource, IDeepCloneable
     /// <summary>
     /// Suppresses the ability of the Pokémon.
     /// </summary>
-    public void SuppressAbility();
+    void SuppressAbility();
 
     /// <summary>
     /// Returns the currently active ability.
@@ -313,15 +313,21 @@ public interface IPokemon : IScriptSource, IDeepCloneable
     /// </summary>
     void RecalculateBoostedStats();
 
+    /// <summary>
+    /// Evolves the Pokemon to a specific evolution. This will not check whether the evolution is valid, so
+    /// you should check that before calling this method.
+    /// </summary>
+    bool EvolveTo(IEvolution evolution, EventHook? eventHook = null);
+
     /// <summary>
     /// Change the species of the Pokemon.
     /// </summary>
-    void ChangeSpecies(ISpecies species, IForm form);
+    void ChangeSpecies(ISpecies species, IForm form, EventHook? eventHook = null);
 
     /// <summary>
     /// Change the form of the Pokemon.
     /// </summary>
-    void ChangeForm(IForm form, EventBatchId batchId = default);
+    void ChangeForm(IForm form, EventBatchId batchId = default, EventHook? eventHook = null);
 
     /// <summary>
     /// Whether the Pokemon is useable in a battle.
@@ -606,7 +612,7 @@ public class PokemonImpl : ScriptSource, IPokemon
     public IDynamicLibrary Library { get; }
 
     /// <inheritdoc />
-    public ISpecies Species { get; }
+    public ISpecies Species { get; private set; }
 
     /// <inheritdoc />
     public IForm Form { get; private set; }
@@ -985,8 +991,25 @@ public class PokemonImpl : ScriptSource, IPokemon
     public void RecalculateBoostedStats() => Library.StatCalculator.CalculateBoostedStats(this, BoostedStats);
 
     /// <inheritdoc />
-    public void ChangeSpecies(ISpecies species, IForm form)
+    public bool EvolveTo(IEvolution evolution, EventHook? eventHook = null)
     {
+        if (!Species.EvolutionData.Contains(evolution))
+            return false;
+        if (!Library.StaticLibrary.Species.TryGet(evolution.ToSpecies, out var species))
+            return false;
+
+        // TODO: Consider how forms work with evolution items.
+        var newForm = species.GetDefaultForm();
+        eventHook?.Invoke(new EvolutionEvent(this, Species, Form, species, newForm, evolution));
+
+        ChangeSpecies(species, newForm, eventHook);
+        return true;
+    }
+
+    /// <inheritdoc />
+    public void ChangeSpecies(ISpecies species, IForm form, EventHook? eventHook = null)
+    {
+        eventHook ??= BattleData?.Battle.EventHook;
         if (Species == species)
         {
             if (form != Form)
@@ -1007,18 +1030,20 @@ public class PokemonImpl : ScriptSource, IPokemon
         }
 
         var batchId = new EventBatchId();
-        BattleData?.Battle.EventHook.Invoke(new SpeciesChangeEvent(this, species, form)
+        eventHook?.Invoke(new SpeciesChangeEvent(this, species, form)
         {
             BatchId = batchId,
         });
+        Species = species;
         ChangeForm(form, batchId);
     }
 
     /// <inheritdoc />
-    public void ChangeForm(IForm form, EventBatchId batchId = default)
+    public void ChangeForm(IForm form, EventBatchId batchId = default, EventHook? eventHook = null)
     {
         if (form == Form)
             return;
+        eventHook ??= BattleData?.Battle.EventHook;
 
         var oldAbility = Form.GetAbility(AbilityIndex);
 
@@ -1068,7 +1093,7 @@ public class PokemonImpl : ScriptSource, IPokemon
 
         // TODO: form specific moves?
 
-        BattleData?.Battle.EventHook.Invoke(new FormChangeEvent(this, form)
+        eventHook?.Invoke(new FormChangeEvent(this, form)
         {
             BatchId = batchId,
         });