Create mesh.js

mesh.js

@@ -0,0 +1,46 @@
+(function(ext) {
+    // TODO: public repo + documentation + samples
+    // GH pages
+    $.getScript('https://cdn.firebase.com/js/client/2.2.4/firebase.js');
+    window['temp'] = 0; // init
+
+    var fb = new Firebase("https://scratchx.firebaseio.com/"); //Create a firebase reference
+
+    // Cleanup function when the extension is unloaded
+    ext._shutdown = function() {};
+
+    // Status reporting code
+    // Use this to report missing hardware, plugin or unsupported browser
+    ext._getStatus = function() {
+        return {status: 2, msg: 'Ready'};
+    };
+
+    ext.broadcast = function(name) {
+        if (name.length > 0){ // blank broadcasts break firebase - not nice.
+        window['sent'] = Math.random();
+        fb.child('broadcasts/' + name).set(window['sent']); //Change value of broadcast so other clients get an update
+        }
+    };
+
+   ext.mesh_hat = function(name) {
+       fb.child('broadcasts/' + name).on('value', function(snap){window['new'] = snap.val();}); // Make sure broadcasts are unique (don't activate twice)
+       if(window['last'] != window['new'] && window['new'] != window['sent']){
+           window['last'] = window['new'];
+           return true;
+       } else {
+           return false;
+       }
+   }
+    // Block and block menu descriptions
+    var descriptor = {
+        blocks: [
+            [' ', 'mesh broadcast %s', 'broadcast'],
+            ['h', 'when I receive mesh %s', 'mesh_hat']
+        ]
+    };
+
+    var url = "http://technoboy10.tk";
+
+    // Register the extension
+    ScratchExtensions.register('Mesh', descriptor, ext);
+})({});