Fix duplicate enchants

build.gradle

@@ -4,7 +4,7 @@ plugins {
 }
 
 group = 'com.kasetoatz'
-version = '1.0'
+version = '1.3'
 
 repositories {
     mavenCentral()

src/main/java/com/kasetoatz/superBow/SuperBow.java

@@ -14,6 +14,7 @@ import org.bukkit.inventory.meta.Repairable;
 import org.bukkit.plugin.java.JavaPlugin;
 
 import java.util.Map;
+import java.util.Objects;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import static com.kasetoatz.superBow.Multiplier.multipliers;
@@ -116,6 +117,10 @@ public final class SuperBow extends JavaPlugin implements Listener
             getEnchants(right).forEach((enchant, level) -> {
                 if (isValidEnchant(left, enchant))
                 {
+                    if (Objects.equals(getEnchants(left).getOrDefault(enchant, -1), level))
+                    {
+                        level = Math.min(enchant.getMaxLevel(), level + 1);
+                    }
                     if (result.getItemMeta() instanceof EnchantmentStorageMeta meta)
                     {
                         meta.addStoredEnchant(enchant, level, true);

src/main/resources/plugin.yml

@@ -1,4 +1,4 @@
 name: SuperBow
-version: '1.2'
+version: '1.3'
 main: com.kasetoatz.superBow.SuperBow
 api-version: '1.21'