Add barrier type. Transition into playing phase properly.

static/css/style.css

@@ -23,3 +23,17 @@
     font-size: 2em;
     color: green;
 }
+
+.status-span {
+    display: inline-block;
+    font-weight: bold;
+    width: 20px;
+}
+
+.ready {
+    color: green;
+}
+
+.not-ready {
+    color: red;
+}