🚧 Made attributes retrievable

lib/attributes.ts

@@ -1,18 +1,28 @@
 export class Attributes {
-  list: {name: string, value: string}[] = [];
+  list: any = {};
 
   /** Adds an attribute */
   add(name: string, value: string): Attributes {
-    this.list.push({name, value});
+    if(typeof this.list[name] === 'undefined') {
+      this.list[name] = [];
+    }
+
+    this.list[name].push(value);
 
     return this;
   }
 
+  /** Retrieves an attribute */
+  get(name: string): string {
+    return this.list[name].join(' ');
+  }
+
   /** Returns SVG code for attributes */
   render(): string {
     let svg = '';
-    for (let a of this.list) {
+    for (let key in this.list) {
-      svg += ` ${a.name}="${a.value}"`;
+      let attrs = this.list
+      svg += ` ${key}="${this.list[key].join(' ')}"`;
     }
 
     return svg;

tests/point.test.js

@@ -148,4 +148,21 @@ it('should shift a point beyond another', () => {
   expect(ss.shiftOutwards(se, 200).y).to.equal(-141.42);
 });
 
-
+it('should rotate a point around another', () => {
+  let sun = new Point(0,0);
+  let moon = new Point(10,0);
+  let a = moon.rotate(90, sun);
+  expect(a.x).to.equal(0);
+  expect(a.y).to.equal(-10);
+  let b = moon.rotate(-90, sun);
+  expect(b.x).to.equal(0);
+  expect(b.y).to.equal(10);
+  let c = moon.rotate(180, sun);
+  expect(c.x).to.equal(-10);
+  expect(c.y).to.equal(0);
+  let sun2 = new Point(222,44);
+  let moon2 = new Point(212,41);
+  let d = moon2.rotate(90, sun2);
+  expect(d.x).to.equal(219);
+  expect(d.y).to.equal(54);
+});

tests/utils.test.js

@@ -56,7 +56,5 @@ it('should return a line segment intersection', () => {
   let g = new Point(0,49);
   let h = new Point(-20,40);
   let i = new Point(20,40);
-  console.log(utils.beamsCross(g,f,h,i));
-
 });