Added ctrl-c logic to examples

examples/pano.js

@@ -3,8 +3,25 @@ var df = require('dateformat')
   , mission  = autonomy.createMission()
   ;
 
+// Land on ctrl-c
+var exiting = false;
+process.on('SIGINT', function() {
+    if (exiting) {
+        process.exit(0);
+    } else {
+        console.log('Got SIGINT. Landing, press Control-C again to force exit.');
+        exiting = true;
+        mission.control().disable();
+        mission.client().land(function() {
+            process.exit(0);
+        });
+    }
+});
+
+// Log mission data for debugging
 mission.log("mission-" + df(new Date(), "yyyy-mm-dd_hh-MM-ss") + ".txt");
 
+// Plan pano mission
 mission.takeoff()
        .zero()
        .hover(1000)
@@ -17,6 +34,7 @@ mission.takeoff()
        .altitude(0.5)
        .land();
 
+// Execute mission
 mission.run(function (err, result) {
     if (err) {
         console.trace("Oops, something bad happened: %s", err.message);

examples/square.js

@@ -17,14 +17,31 @@ var navdata_options = (
   | navdata_option_mask(arDroneConstants.options.WIFI)
 );
 
+// Land on ctrl-c
+var exiting = false;
+process.on('SIGINT', function() {
+    if (exiting) {
+        process.exit(0);
+    } else {
+        console.log('Got SIGINT. Landing, press Control-C again to force exit.');
+        exiting = true;
+        mission.control().disable();
+        mission.client().land(function() {
+            process.exit(0);
+        });
+    }
+});
+
 // Connect and configure the drone
 mission.client().config('general:navdata_demo', true);
 mission.client().config('general:navdata_options', navdata_options);
 mission.client().config('video:video_channel', 1);
 mission.client().config('detect:detect_type', 12);
 
+// Log mission for debugging purposes
 mission.log("mission-" + df(new Date(), "yyyy-mm-dd_hh-MM-ss") + ".txt");
 
+// Plan mission
 mission.takeoff()
        .zero()
        .hover(500)
@@ -36,6 +53,7 @@ mission.takeoff()
        .hover(500)
        .land();
 
+// Execute mission
 mission.run(function (err, result) {
     if (err) {
         console.trace("Oops, something bad happened: %s", err.message);