Overridable durability RNG

src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/DamageableItem.java

@@ -3,6 +3,7 @@ package io.github.thebusybiscuit.slimefun4.core.attributes;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
+import io.github.thebusybiscuit.slimefun4.utils.UnbreakingRNGUtils;
 import org.bukkit.Sound;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.Player;
@@ -49,7 +50,7 @@ public interface DamageableItem extends ItemAttribute {
         if (isDamageable() && item != null && !item.getType().isAir() && item.getAmount() > 0) {
             int unbreakingLevel = item.getEnchantmentLevel(Enchantment.DURABILITY);
 
-            if (unbreakingLevel > 0 && !(Math.random() < (1.0 / (unbreakingLevel + 1)))) {
+            if (unbreakingLevel > 0 && durabilityRNG(unbreakingLevel)) {
                 return;
             }
 
@@ -69,4 +70,16 @@ public interface DamageableItem extends ItemAttribute {
         }
     }
 
+    /**
+     * This method will randomly decide if the item should be damaged or not
+     * This does not damage the item, it is called by {@link #damageItem(Player, ItemStack)} to randomly generate a boolean
+     * This method can be overridden when trying to break a piece of armor, with the provided method {@link UnbreakingRNGUtils().getArmorRNG(Integer)}
+     *
+     * @param unbreakingLevel
+     *                       The {@link Integer} level of the unbreaking enchantment
+     */
+    default boolean durabilityRNG(int unbreakingLevel) {
+        return new UnbreakingRNGUtils().getToolsRNG(unbreakingLevel);
+    }
+
 }

src/main/java/io/github/thebusybiscuit/slimefun4/utils/UnbreakingRNGUtils.java

@@ -0,0 +1,25 @@
+package io.github.thebusybiscuit.slimefun4.utils;
+
+
+import io.github.thebusybiscuit.slimefun4.core.attributes.DamageableItem;
+
+/**
+ * This class is created for a RNG generator to determine if the tool / armor should be damaged when unbreaking enchant is applied.<br>
+ * Mainly used in {@link DamageableItem} and their implementations
+ *
+ * @author RobotHanzo
+ *
+ */
+public class UnbreakingRNGUtils {
+
+    public UnbreakingRNGUtils(){}
+
+    public boolean getToolsRNG(int unbreakingLevel){
+        return !(Math.random() < (1.0 / (unbreakingLevel + 1)));
+    }
+
+    public boolean getArmorRNG(int unbreakingLevel){
+        return !(Math.random() < 0.6 + (0.4 / (unbreakingLevel + 1)));
+    }
+
+}