Add dentity.carries_chest property for #1005

src/main/java/net/aufdemrand/denizen/Denizen.java

@@ -638,6 +638,7 @@ public void onEnable() {
             propertyParser.registerProperty(EntityAge.class, dEntity.class);
             propertyParser.registerProperty(EntityAI.class, dEntity.class);
             propertyParser.registerProperty(EntityAngry.class, dEntity.class);
+            propertyParser.registerProperty(EntityChestCarrier.class, dEntity.class);
             propertyParser.registerProperty(EntityColor.class, dEntity.class);
             propertyParser.registerProperty(EntityCritical.class, dEntity.class);
             propertyParser.registerProperty(EntityElder.class, dEntity.class);

src/main/java/net/aufdemrand/denizen/objects/properties/entity/EntityChestCarrier.java

@@ -0,0 +1,91 @@
+package net.aufdemrand.denizen.objects.properties.entity;
+
+import net.aufdemrand.denizen.objects.dEntity;
+import net.aufdemrand.denizencore.objects.Element;
+import net.aufdemrand.denizencore.objects.Mechanism;
+import net.aufdemrand.denizencore.objects.dObject;
+import net.aufdemrand.denizencore.objects.properties.Property;
+import net.aufdemrand.denizencore.tags.Attribute;
+import org.bukkit.entity.Arrow;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Horse;
+
+public class EntityChestCarrier implements Property {
+
+    public static boolean describes(dObject entity) {
+        return entity instanceof dEntity
+                && ((dEntity)entity).getBukkitEntityType() == EntityType.HORSE;
+    }
+
+    public static EntityChestCarrier getFrom(dObject entity) {
+        if (!describes(entity)) return null;
+
+        else return new EntityChestCarrier((dEntity) entity);
+    }
+
+    ///////////////////
+    // Instance Fields and Methods
+    /////////////
+
+    private EntityChestCarrier(dEntity entity) {
+        this.entity = entity;
+    }
+
+    dEntity entity;
+
+    /////////
+    // Property Methods
+    ///////
+
+    @Override
+    public String getPropertyString() {
+        return ((Horse)entity.getBukkitEntity()).isCarryingChest() ? "true": "false";
+    }
+
+    @Override
+    public String getPropertyId() {
+        return "carries_chest";
+    }
+
+    ///////////
+    // dObject Attributes
+    ////////
+
+    @Override
+    public String getAttribute(Attribute attribute) {
+
+        if (attribute == null) return "null";
+
+        // <--[tag]
+        // @attribute <e@entity.carries_chest>
+        // @returns Element(Boolean)
+        // @mechanism dEntity.carries_chest
+        // @group properties
+        // @description
+        // If the entity is an horse, returns whether it is carrying a chest.
+        // -->
+        if (attribute.startsWith("carries_chest"))
+            return new Element(((Horse)entity.getBukkitEntity()).isCarryingChest())
+                    .getAttribute(attribute.fulfill(1));
+
+        return null;
+    }
+
+    @Override
+    public void adjust(Mechanism mechanism) {
+
+        // <--[mechanism]
+        // @object dEntity
+        // @name carries_chest
+        // @input Element(Boolean)
+        // @description
+        // Changes whether a Horse carries a chest.
+        // @tags
+        // <e@entity.carries_chest>
+        // -->
+
+        if (mechanism.matches("carries_chest") && mechanism.requireBoolean()) {
+            ((Horse)entity.getBukkitEntity()).setCarryingChest(mechanism.getValue().asBoolean());
+        }
+    }
+}