feat: implement withSwap method

src/main/java/me/alpha432/oyvey/features/modules/combat/KeyPearl.java

@@ -22,13 +22,9 @@ public class KeyPearl extends Module {
 
         if (nullCheck()) return;
 
-        int last = InventoryUtil.selected();
         Result result = InventoryUtil.find(Items.ENDER_PEARL, inventory.getValue() ? FULL_SCOPE : HOTBAR_SCOPE);
-        if (!result.found())
-            return;
-
-        InventoryUtil.swap(result);
-        mc.gameMode.useItem(mc.player, result.hand());
-        InventoryUtil.swapBack(result, last);
+        InventoryUtil.withSwap(result, () -> {
+            mc.gameMode.useItem(mc.player, result.hand());
+        });
     }
 }

src/main/java/me/alpha432/oyvey/util/inventory/InventoryUtil.java

@@ -12,10 +12,11 @@ import net.minecraft.world.item.ItemStack;
 import java.util.EnumSet;
 import java.util.List;
 import java.util.function.BiPredicate;
+import java.util.function.Consumer;
 import java.util.function.Predicate;
 
 public final class InventoryUtil implements Util {
-    public static final Result NONE = new Result(-1, ItemStack.EMPTY, ResultType.NONE);
+    static final Result NONE = new Result(-1, ItemStack.EMPTY, ResultType.NONE);
 
     public static final EnumSet<ResultType> HOTBAR_SCOPE = EnumSet.of(ResultType.OFFHAND, ResultType.HOTBAR);
     public static final EnumSet<ResultType> INVENTORY_SCOPE = EnumSet.of(ResultType.OFFHAND, ResultType.INVENTORY);
@@ -45,24 +46,38 @@ public final class InventoryUtil implements Util {
         mc.gameMode.handleInventoryMouseClick(id, slot, button, type, mc.player);
     }
 
+    public static void withSwap(Result result, Runnable action) {
+        withSwap(result, r -> action.run());
+    }
+
+    public static void withSwap(Result result, Consumer<Result> action) {
+        int lastSlot = selected();
+        if (InventoryUtil.swap(result)) {
+            action.accept(result);
+            InventoryUtil.swapBack(result, lastSlot);
+        }
+    }
+
     public static void swap(int to) {
         if (to < 0 || to > 8) return;
         mc.player.getInventory().setSelectedSlot(to);
         mc.gameMode.ensureHasSentCarriedItem();
     }
 
-    public static void swap(Result result) {
+    public static boolean swap(Result result) {
         for (SwapStrategy strategy : STRATEGIES) {
             if (strategy.swap(result))
-                return;
+                return true;
         }
+        return false;
     }
 
-    public static void swapBack(Result result, int last) {
+    public static boolean swapBack(Result result, int last) {
         for (SwapStrategy strategy : STRATEGIES) {
             if (strategy.swapBack(last, result))
-                return;
+                return true;
         }
+        return false;
     }
 
     public static Result find(Item target, EnumSet<ResultType> scopes) {