Part class

items/Item.js

@@ -1,12 +1,15 @@
+const Part = require('./Part')
+
 module.exports = class Item {
   constructor (name) {
     this.name = name
-    this.url = `${this.name}_prime_set`
+    this.set = new Part(name, 'set')
+
     this.parts = []
     this.addPart('blueprint')
   }
 
   addPart (part) {
-    this.parts.push({ part, url: `${this.name}_prime_${part}` })
+    this.parts.push(new Part(this.name, part))
   }
 }