deploy dev version

dev/js/utils/Math.js

@@ -0,0 +1,18 @@
+(function () {
+  var ns = $.namespace('pskl.utils');
+
+  ns.Math = {
+    minmax : function (val, min, max) {
+      return Math.max(Math.min(val, max), min);
+    },
+
+    /**
+     * Calculate the distance between {x0, y0} and {x1, y1}
+     */
+    distance : function (x0, x1, y0, y1) {
+      var dx = Math.abs(x1 - x0);
+      var dy = Math.abs(y1 - y0);
+      return Math.sqrt(Math.pow(dx, 2) + Math.pow(dy, 2));
+    }
+  };
+})();