Add gesture detection

Author: Amadeus Stevenson

leap-arduino.js

@@ -10,7 +10,7 @@ board.on('ready', function() {
     led = new five.Led(13);
     ws.on('message', function(data, flags) {
         frame = JSON.parse(data);
-        if (frame.hands && frame.hands.length > 1) {
+        if (frame.hands && frame.hands.length >= 1) {
             led.on();
         } else {
             led.off();

leap-gestures.js

@@ -0,0 +1,32 @@
+// Leap motion enables a websocket with all frame data
+var webSocket = require('ws'),
+    ws = new webSocket('ws://127.0.0.1:6437');
+
+// On successful connection
+ws.onopen = function(event) {
+  var enableMessage = JSON.stringify({enableGestures: true});
+  ws.send(enableMessage); // Enable gestures
+};
+
+// We can parse this
+ws.on('message', function(data, flags) {
+  frame = JSON.parse(data);
+  if(frame.gestures && frame.gestures.length > 0){
+    frame.gestures.forEach(function(gesture){
+        switch (gesture.type){
+          case "circle":
+              console.log("Circle Gesture");
+              break;
+          case "keyTap":
+              console.log("Key Tap Gesture");
+              break;
+          case "screenTap":
+              console.log("Screen Tap Gesture");
+              break;
+          case "swipe":
+              console.log("Swipe Gesture");
+              break;
+        }
+    });
+  }
+});