Attributes initialization refactoring (#19)

tests/resources/Entity2.js

@@ -1,37 +1,21 @@
-import Entity1 from "./Entity1.js"
+import AttributeInfo from "../../js/entity/AttributeInfo.js"
 import IEntity from "../../js/entity/IEntity.js"
+import Entity1 from "./Entity1.js"
 
 export default class Entity2 extends IEntity {
 
     static attributes = {
-        someNumber: {
-            default: 567,
-        },
-        someString: {
-            default: "alpha",
-        },
-        someString2: {
-            default: "beta",
-        },
-        someBoolean: {
-            default: true,
-        },
-        someBoolean2: {
-            default: false,
-        },
-        someObjectString: {
-            default: "gamma",
-        },
-        someArray: {
-            default: [400, 500, 600, 700, 800],
-        },
-        someEntity: {
+        someNumber: AttributeInfo.createValue(567),
+        someString: AttributeInfo.createValue("alpha"),
+        someString2: AttributeInfo.createValue("beta"),
+        someBoolean: AttributeInfo.createValue(true),
+        someBoolean2: AttributeInfo.createValue(false),
+        someObjectString: AttributeInfo.createValue("gamma"),
+        someArray: AttributeInfo.createValue([400, 500, 600, 700, 800]),
+        someArray2: AttributeInfo.createValue(() => [400, 500, 600, 700, 800]),
+        someEntity: new AttributeInfo({
             type: Entity1,
             default: new Entity1()
-        },
-    }
-
-    static {
-        this.cleanupAttributes(this.attributes)
+        }),
     }
 }