Added coffee version of bkcore.ImageData and added missing doc

bkcore.coffee/Timer.js

@@ -1,8 +1,21 @@
 // Generated by CoffeeScript 1.4.0
+
+/*
+ new Date().getTime() wrapper to use as timer.
+
+ @class bkcore.Timer
+ @author Thibaut 'BKcore' Despoulain <http://bkcore.com>
+*/
+
+
 (function() {
   var Timer, exports;
 
   Timer = (function() {
+    /*
+        Creates a new timer, inactive by default.
+        Call Timer.start() to activate.
+    */
 
     function Timer() {
       this.time = {
@@ -15,6 +28,11 @@
       this.active = false;
     }
 
+    /*
+        Starts/restarts the timer.
+    */
+
+
     Timer.prototype.start = function() {
       var now;
       now = (new Date).getTime();
@@ -26,13 +44,25 @@
       return this.active = true;
     };
 
+    /*
+        Pauses(true)/Unpauses(false) the timer.
+    
+        @param bool Do pause
+    */
+
+
     Timer.prototype.pause = function(doPause) {
       return this.active = !doPause;
     };
 
+    /*
+        Update method to be called inside a RAF loop
+    */
+
+
     Timer.prototype.update = function() {
       var now;
-      if (!active) {
+      if (!this.active) {
         return;
       }
       now = (new Date).getTime();
@@ -42,10 +72,23 @@
       return this.time.previous = now;
     };
 
+    /*
+        Returns a formatted version of the current elapsed time using msToTime().
+    */
+
+
     Timer.prototype.getElapsedTime = function() {
       return this.constructor.msToTime(this.time.elapsed);
     };
 
+    /*
+        Formats a millisecond integer into a h/m/s/ms object
+        
+        @param x int In milliseconds
+        @return Object{h,m,s,ms}
+    */
+
+
     Timer.msToTime = function(t) {
       var h, m, ms, s;
       ms = t % 1000;
@@ -61,6 +104,14 @@
       };
     };
 
+    /*
+        Formats a millisecond integer into a h/m/s/ms object with prefix zeros
+        
+        @param x int In milliseconds
+        @return Object<string>{h,m,s,ms}
+    */
+
+
     Timer.msToTimeString = function(t) {
       var time;
       time = this.msToTime(t);
@@ -71,6 +122,14 @@
       return time;
     };
 
+    /*
+        Convert given integer to string and fill with heading zeros
+    
+        @param num int Number to convert/fill
+        @param size int Desired string size
+    */
+
+
     Timer.zfill = function(num, size) {
       var len;
       len = size - num.toString().length;
@@ -85,8 +144,16 @@
 
   })();
 
+  /*
+    Exports
+    @package bkcore
+  */
+
+
   exports = exports != null ? exports : this;
 
+  exports.bkcore || (exports.bkcore = {});
+
   exports.bkcore.Timer = Timer;
 
 }).call(this);