Work on item use/evolutions

Plugins/PkmnLib.Plugin.Gen7/Data/Items.json

@@ -1840,6 +1840,9 @@
     "price": 3000,
     "additionalData": {
       "flingPower": 30
+    },
+    "effect": {
+      "name": "evolution_use"
     }
   },
   {
@@ -4591,6 +4594,12 @@
       "parameters": {
         "heal_amount": 20
       }
+    },
+    "battleEffect": {
+      "name": "healing_item",
+      "parameters": {
+        "healAmount": 20
+      }
     }
   },
   {

Plugins/PkmnLib.Plugin.Gen7/Scripts/Items/EvolutionItem.cs

@@ -0,0 +1,54 @@
+using PkmnLib.Static.Species;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Items;
+
+[ItemScript("evolution_use")]
+public class EvolutionItem : ItemScript
+{
+    /// <inheritdoc />
+    public EvolutionItem(IItem item) : base(item)
+    {
+    }
+
+    /// <inheritdoc />
+    public override bool IsItemUsable => true;
+
+    /// <inheritdoc />
+    public override bool RequiresTarget => true;
+
+    /// <inheritdoc />
+    public override bool IsTargetValid(IPokemon target)
+    {
+        foreach (var x in target.Species.EvolutionData)
+        {
+            switch (x)
+            {
+                case ItemUseEvolution itemUseEvolution when itemUseEvolution.Item == Item.Name:
+                    return true;
+                case ItemGenderEvolution itemGenderEvolution when itemGenderEvolution.Item == Item.Name:
+                    return itemGenderEvolution.Gender == target.Gender;
+            }
+        }
+        return false;
+    }
+
+    /// <inheritdoc />
+    public override void OnUseWithTarget(IPokemon target, EventHook eventHook)
+    {
+        var evolutionData = target.Species.EvolutionData.FirstOrDefault(x =>
+        {
+            switch (x)
+            {
+                case ItemUseEvolution itemUseEvolution when itemUseEvolution.Item == Item.Name:
+                case ItemGenderEvolution itemGenderEvolution when itemGenderEvolution.Item == Item.Name:
+                    return true;
+                default:
+                    return false;
+            }
+        });
+        if (evolutionData == null)
+            return;
+
+        target.EvolveTo(evolutionData, eventHook);
+    }
+}

Plugins/PkmnLib.Plugin.Gen7/Scripts/Items/HealingItem.cs

@@ -29,7 +29,7 @@ public class HealingItem : ItemScript
     }
 
     /// <inheritdoc />
-    public override bool IsTargetValid(IPokemon target) => !target.IsFainted;
+    public override bool IsTargetValid(IPokemon target) => !target.IsFainted && target.CurrentHealth < target.MaxHealth;
 
     /// <inheritdoc />
     public override void OnUseWithTarget(IPokemon target, EventHook eventHook)