add entity.fixed property

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

@@ -57,6 +57,7 @@ public static void registermainProperties() {
         PropertyParser.registerProperty(EntityExplosionFire.class, EntityTag.class);
         PropertyParser.registerProperty(EntityExplosionRadius.class, EntityTag.class);
         PropertyParser.registerProperty(EntityFirework.class, EntityTag.class);
+        PropertyParser.registerProperty(EntityFixed.class, EntityTag.class);
         PropertyParser.registerProperty(EntityFramed.class, EntityTag.class);
         PropertyParser.registerProperty(EntityGravity.class, EntityTag.class);
         PropertyParser.registerProperty(EntityHealth.class, EntityTag.class);

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

@@ -0,0 +1,89 @@
+package com.denizenscript.denizen.objects.properties.entity;
+
+import com.denizenscript.denizen.objects.EntityTag;
+import com.denizenscript.denizencore.objects.Mechanism;
+import com.denizenscript.denizencore.objects.ObjectTag;
+import com.denizenscript.denizencore.objects.core.ElementTag;
+import com.denizenscript.denizencore.objects.properties.Property;
+import com.denizenscript.denizencore.tags.Attribute;
+import org.bukkit.entity.ItemFrame;
+
+public class EntityFixed implements Property {
+
+    public static boolean describes(ObjectTag entity) {
+        return entity instanceof EntityTag && ((EntityTag) entity).getBukkitEntity() instanceof ItemFrame;
+    }
+
+    public static EntityFixed getFrom(ObjectTag entity) {
+        if (!describes(entity)) {
+            return null;
+        }
+        else {
+            return new EntityFixed((EntityTag) entity);
+        }
+    }
+
+    public static final String[] handledTags = new String[] {
+            "fixed"
+    };
+
+    public static final String[] handledMechs = new String[] {
+            "fixed"
+    };
+
+    private EntityFixed(EntityTag ent) {
+        entity = ent;
+    }
+
+    EntityTag entity;
+
+    @Override
+    public String getPropertyString() {
+        return ((ItemFrame) entity.getBukkitEntity()).isFixed() ? "true" : "false";
+    }
+
+    @Override
+    public String getPropertyId() {
+        return "fixed";
+    }
+
+    @Override
+    public ObjectTag getObjectAttribute(Attribute attribute) {
+
+        if (attribute == null) {
+            return null;
+        }
+
+        // <--[tag]
+        // @attribute <EntityTag.fixed>
+        // @returns ElementTag(Boolean)
+        // @mechanism EntityTag.fixed
+        // @group attributes
+        // @description
+        // Returns whether the item frame is fixed. (Meaning, it can't be altered by players).
+        // -->
+        if (attribute.startsWith("fixed")) {
+            return new ElementTag(((ItemFrame) entity.getBukkitEntity()).isFixed())
+                    .getObjectAttribute(attribute.fulfill(1));
+        }
+
+        return null;
+    }
+
+    @Override
+    public void adjust(Mechanism mechanism) {
+
+        // <--[mechanism]
+        // @object EntityTag
+        // @name fixed
+        // @input ElementTag(Boolean)
+        // @description
+        // Sets whether this item frame is fixed. (Meaning, it can't be altered by players).
+        // @tags
+        // <EntityTag.fixed>
+        // -->
+        if (mechanism.matches("fixed") && mechanism.requireBoolean()) {
+            ((ItemFrame) entity.getBukkitEntity()).setFixed(mechanism.getValue().asBoolean());
+        }
+    }
+}