fix active element

Author: josex2r

dist/slotmachine.js

@@ -74,14 +74,20 @@
 new SlotMachine(planeMachine, {
   active: 1,
   delay: 450,
-  auto: 1500
+  auto: 1500,
+  randomize() {
+    return this.nextIndex;
+  }
 });
 
 // Using jQuery
-$('#planeMachine').slotMachine({
+$('#planeMachine2').slotMachine({
   active: 1,
   delay: 450,
-  auto: 1500
+  auto: 1500,
+  randomize() {
+    return this.nextIndex;
+  }
 });
             </script>
           </div>
@@ -363,7 +369,10 @@ <h1>Use the API</h1>
 $("#textMachine").slotMachine({
   active: 1,
   delay: 450,
-  auto: 1500
+  auto: 1500,
+  randomize() {
+    return this.nextIndex;
+  }
 });
         </script>
       </div>

dist/slotmachine.min.js

@@ -136,7 +136,7 @@ module.exports = class SlotMachine {
   get custom () {
     let choosen;
 
-    if (typeof this.randomize === 'function') {
+    if (this.randomize) {
       let index = this.randomize(this.active);
       if (index < 0 || index >= this.tiles.length) {
         index = 0;
@@ -337,7 +337,7 @@ module.exports = class SlotMachine {
     this.running = true;
     this.stopping = true;
 
-    if (this.nextActive === null) {
+    if (!Number.isInteger(this.nextActive)) {
       // Get random or custom element
       this.nextActive = this.custom;
     }
@@ -381,9 +381,6 @@ module.exports = class SlotMachine {
     }
 
     this._timer = new Timer(() => {
-      if (typeof this.randomize !== 'function') {
-        this.randomize = () => this._nextIndex;
-      }
       if (!this.visible && this.inViewport === true) {
         raf(() => {
           this._timer.reset()