Implements the pierce_level property (#2561)

* Implements the ``pierce_level`` property

* Meta & if statement change.

* Meta changes

* Another meta change.

* Update EntityArrowPierceLevel.java

plugin/src/main/java/com/denizenscript/denizen/objects/properties/PropertyRegistry.java

@@ -36,6 +36,7 @@ public static void registerMainProperties() {
         PropertyParser.registerProperty(EntityAreaEffectCloud.class, EntityTag.class);
         PropertyParser.registerProperty(EntityArmorBonus.class, EntityTag.class);
         PropertyParser.registerProperty(EntityArrowDamage.class, EntityTag.class);
+        PropertyParser.registerProperty(EntityArrowPierceLevel.class, EntityTag.class);
         PropertyParser.registerProperty(EntityAttributeBaseValues.class, EntityTag.class);
         PropertyParser.registerProperty(EntityAttributeModifiers.class, EntityTag.class);
         PropertyParser.registerProperty(EntityArmorPose.class, EntityTag.class);

plugin/src/main/java/com/denizenscript/denizen/objects/properties/entity/EntityArrowPierceLevel.java

@@ -0,0 +1,42 @@
+package com.denizenscript.denizen.objects.properties.entity;
+
+import com.denizenscript.denizen.objects.EntityTag;
+import com.denizenscript.denizencore.objects.Mechanism;
+import com.denizenscript.denizencore.objects.core.ElementTag;
+import org.bukkit.entity.AbstractArrow;
+
+public class EntityArrowPierceLevel extends EntityProperty<ElementTag> {
+
+    // <--[property]
+    // @object EntityTag
+    // @name pierce_level
+    // @input ElementTag(Number)
+    // @description
+    // The number of entities an arrow will pierce through while flying. Must be between 0 and 127.
+    // -->
+
+    public static boolean describes(EntityTag entity) {
+        return entity.getBukkitEntity() instanceof AbstractArrow;
+    }
+
+    @Override
+    public ElementTag getPropertyValue() {
+        return new ElementTag(as(AbstractArrow.class).getPierceLevel());
+    }
+
+    @Override
+    public void setPropertyValue(ElementTag value, Mechanism mechanism) {
+        if (mechanism.requireInteger()) {
+            as(AbstractArrow.class).setPierceLevel(value.asInt());
+        }
+    }
+
+    @Override
+    public String getPropertyId() {
+        return "pierce_level";
+    }
+
+    public static void register() {
+        autoRegister("pierce_level", EntityArrowPierceLevel.class, ElementTag.class, false);
+    }
+}