1 files changed, 9 insertions, 25 deletions
diff --git a/assets/javascripts/util.js b/assets/javascripts/util.js
index 81103aa..c56131d 100644
--- a/assets/javascripts/util.js
+++ b/assets/javascripts/util.js
@@ -12,6 +12,7 @@ var E = Math.E
 var PI = Math.PI
 var PHI = (1+Math.sqrt(5))/2
 var TWO_PI = PI*2
+var HALF_PI = PI/2
 var LN10 = Math.LN10
 function clamp(n,a,b){ return n<a?a:n<b?n:b }
 function norm(n,a,b){ return (n-a) / (b-a) }
@@ -112,6 +113,14 @@ function weave(a){
   reverse(aa[1]).forEach(function(el){ b.push(el) })
   return b
 }
+function range(m,n,s){
+	var a = []
+	s = s || 1
+	for (var i = m; i <= n; i += s) {
+		a.push(i)
+	}
+	return a
+}
 
 var guid_syllables = "iz az ez or iv ex baz el lo lum ot un no".split(" ")
 var guid_n = 0
@@ -139,28 +148,3 @@ function smarten(a) {
   a = a.replace(/--/g, "\u2014");                           // em-dashes
   return a
 };
-
-(function() {
-    var lastTime = 0;
-    var vendors = ['ms', 'moz', 'webkit', 'o'];
-    for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
-        window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
-        window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] 
-                                   || window[vendors[x]+'CancelRequestAnimationFrame'];
-    }
- 
-    if (!window.requestAnimationFrame)
-        window.requestAnimationFrame = function(callback, element) {
-            var currTime = new Date().getTime();
-            var timeToCall = Math.max(0, 16 - (currTime - lastTime));
-            var id = window.setTimeout(function() { callback(currTime + timeToCall); }, 
-              timeToCall);
-            lastTime = currTime + timeToCall;
-            return id;
-        };
- 
-    if (!window.cancelAnimationFrame)
-        window.cancelAnimationFrame = function(id) {
-            clearTimeout(id);
-        };
-}());