diff --git a/bower.json b/bower.json
index 33702e4..6fe8749 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "boid",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "homepage": "https://github.com/ianmcgregor/boid",
   "authors": [
     "Ian McGregor <i.mcgrgr@gmail.com>"
diff --git a/dist/boid.js b/dist/boid.js
index aa4ba68..54f9d13 100644
--- a/dist/boid.js
+++ b/dist/boid.js
@@ -7,13 +7,20 @@ function Boid() {
     var position = Vec2.get();
     var velocity = Vec2.get();
     var steeringForce = Vec2.get();
-    var bounds = {x:0, y:0, width:640, height:480};
+    var bounds = {
+        x: 0,
+        y: 0,
+        width: 640,
+        height: 480
+    };
     var edgeBehavior = Boid.EDGE_BOUNCE;
     var mass = 1.0;
     var maxSpeed = 10;
+    var maxSpeedSq = maxSpeed * maxSpeed;
     var maxForce = 1;
     // arrive
     var arriveThreshold = 50;
+    var arriveThresholdSq = arriveThreshold * arriveThreshold;
     // wander
     var wanderDistance = 10;
     var wanderRadius = 5;
@@ -25,9 +32,12 @@ function Boid() {
     // follow path
     var pathIndex = 0;
     var pathThreshold = 20;
+    var pathThresholdSq = pathThreshold * pathThreshold;
     // flock
-    var inSightDistance = 300;
-    var tooCloseDistance = 60;
+    var maxDistance = 300;
+    var maxDistanceSq = maxDistance * maxDistance;
+    var minDistance = 60;
+    var minDistanceSq = minDistance * minDistance;
 
     var setBounds = function(width, height, x, y) {
         bounds.width = width;
@@ -113,11 +123,11 @@ function Boid() {
         var desiredVelocity = targetVec.clone().subtract(position);
         desiredVelocity.normalize();
 
-        var distance = position.distance(targetVec);
-        if (distance > arriveThreshold) {
+        var distanceSq = position.distanceSq(targetVec);
+        if (distanceSq > arriveThresholdSq) {
             desiredVelocity.scaleBy(maxSpeed);
         } else {
-            var scalar = maxSpeed * distance / arriveThreshold;
+            var scalar = maxSpeed * distanceSq / arriveThresholdSq;
             desiredVelocity.scaleBy(scalar);
         }
         var force = desiredVelocity.subtract(velocity);
@@ -129,10 +139,11 @@ function Boid() {
 
     // look at velocity of boid and try to predict where it's going
     var pursue = function(targetBoid) {
-        var lookAheadTime = position.distance(targetBoid.position) / maxSpeed;
-        // e.g. of where new vec should be returned:
+        var lookAheadTime = position.distanceSq(targetBoid.position) / maxSpeedSq;
+
         var scaledVelocity = targetBoid.velocity.clone().scaleBy(lookAheadTime);
         var predictedTarget = targetBoid.position.clone().add(scaledVelocity);
+
         seek(predictedTarget);
 
         scaledVelocity.dispose();
@@ -143,11 +154,11 @@ function Boid() {
 
     // look at velocity of boid and try to predict where it's going
     var evade = function(targetBoid) {
-        var lookAheadTime = position.distance(targetBoid.position) / maxSpeed;
-        // e.g. of where new vec should be returned:
+        var lookAheadTime = position.distanceSq(targetBoid.position) / maxSpeedSq;
+
         var scaledVelocity = targetBoid.velocity.clone().scaleBy(lookAheadTime);
         var predictedTarget = targetBoid.position.clone().add(scaledVelocity);
-        // only this line diff from pursue:
+
         flee(predictedTarget);
 
         scaledVelocity.dispose();
@@ -225,21 +236,21 @@ function Boid() {
 
         var wayPoint = path[pathIndex];
         if (!wayPoint) {
-          pathIndex = 0;
-          return boid;
+            pathIndex = 0;
+            return boid;
         }
-        if (position.distance(wayPoint) < pathThreshold) {
-            if (pathIndex >= path.length-1) {
-                if (loop) { pathIndex = 0; }
-            }
-            else {
+        if (position.distanceSq(wayPoint) < pathThresholdSq) {
+            if (pathIndex >= path.length - 1) {
+                if (loop) {
+                    pathIndex = 0;
+                }
+            } else {
                 pathIndex++;
             }
         }
-        if (pathIndex >= path.length-1 && !loop) {
+        if (pathIndex >= path.length - 1 && !loop) {
             arrive(wayPoint);
-        }
-        else {
+        } else {
             seek(wayPoint);
         }
         return boid;
@@ -273,9 +284,9 @@ function Boid() {
         return boid;
     };
 
-    // is boid close enough to be in sight? for use with flock
+    // is boid close enough to be in sight and facing
     var inSight = function(boid) {
-        if (position.distance(boid.position) > inSightDistance) {
+        if (position.distanceSq(boid.position) > maxDistanceSq) {
             return false;
         }
         var heading = velocity.clone().normalize();
@@ -291,95 +302,152 @@ function Boid() {
         return true;
     };
 
-    // is boid too close? for use with flock
+    // is boid too close?
     var tooClose = function(boid) {
-        return position.distance(boid.position) < tooCloseDistance;
+        return position.distanceSq(boid.position) < minDistanceSq;
     };
 
     // methods
     var boid = {
-      setBounds: setBounds,
-      update: update,
-      pursue: pursue,
-      evade: evade,
-      wander: wander,
-      avoid: avoid,
-      followPath: followPath,
-      flock: flock,
-      arrive: arrive,
-      flee: flee,
-      userData: {}
+        setBounds: setBounds,
+        update: update,
+        pursue: pursue,
+        evade: evade,
+        wander: wander,
+        avoid: avoid,
+        followPath: followPath,
+        flock: flock,
+        arrive: arrive,
+        flee: flee,
+        position: position,
+        velocity: velocity,
+        userData: {}
     };
 
     // getters / setters
     Object.defineProperties(boid, {
-      position: {
-          get: function() { return position; }
-      },
-      velocity: {
-          get: function() { return velocity; }
-      },
-      edgeBehavior: {
-          get: function() { return edgeBehavior; },
-          set: function(value) { edgeBehavior = value; }
-      },
-      mass: {
-          get: function() { return mass; },
-          set: function(value) { mass = value; }
-      },
-      maxSpeed: {
-          get: function() { return maxSpeed; },
-          set: function(value) { maxSpeed = value; }
-      },
-      maxForce: {
-          get: function() { return maxForce; },
-          set: function(value) { maxForce = value; }
-      },
-      // arrive
-      arriveThreshold: {
-          get: function() { return arriveThreshold; },
-          set: function(value) { arriveThreshold = value; }
-      },
-      // wander
-      wanderDistance: {
-          get: function() { return wanderDistance; },
-          set: function(value) { wanderDistance = value; }
-      },
-      wanderRadius: {
-          get: function() { return wanderRadius; },
-          set: function(value) { wanderRadius = value; }
-      },
-      wanderRange: {
-          get: function() { return wanderRange; },
-          set: function(value) { wanderRange = value; }
-      },
-      // avoid
-      avoidDistance: {
-          get: function() { return avoidDistance; },
-          set: function(value) { avoidDistance = value; }
-      },
-      avoidBuffer: {
-          get: function() { return avoidBuffer; },
-          set: function(value) { avoidBuffer = value; }
-      },
-      // followPath
-      pathIndex: {
-          get: function() { return pathIndex; },
-          set: function(value) { pathIndex = value; }
-      },
-      pathThreshold: {
-          get: function() { return pathThreshold; },
-          set: function(value) { pathThreshold = value; }
-      },
-      //  flock
-      inSightDistance: {
-          get: function() { return inSightDistance; },
-          set: function(value) { inSightDistance = value; }
-      },
-      tooCloseDistance: {
-          get: function() { return tooCloseDistance; },
-          set: function(value) { tooCloseDistance = value; }
-      }
+        edgeBehavior: {
+            get: function() {
+                return edgeBehavior;
+            },
+            set: function(value) {
+                edgeBehavior = value;
+            }
+        },
+        mass: {
+            get: function() {
+                return mass;
+            },
+            set: function(value) {
+                mass = value;
+            }
+        },
+        maxSpeed: {
+            get: function() {
+                return maxSpeed;
+            },
+            set: function(value) {
+                maxSpeed = value;
+                maxSpeedSq = value * value;
+            }
+        },
+        maxForce: {
+            get: function() {
+                return maxForce;
+            },
+            set: function(value) {
+                maxForce = value;
+            }
+        },
+        // arrive
+        arriveThreshold: {
+            get: function() {
+                return arriveThreshold;
+            },
+            set: function(value) {
+                arriveThreshold = value;
+                arriveThresholdSq = value * value;
+            }
+        },
+        // wander
+        wanderDistance: {
+            get: function() {
+                return wanderDistance;
+            },
+            set: function(value) {
+                wanderDistance = value;
+            }
+        },
+        wanderRadius: {
+            get: function() {
+                return wanderRadius;
+            },
+            set: function(value) {
+                wanderRadius = value;
+            }
+        },
+        wanderRange: {
+            get: function() {
+                return wanderRange;
+            },
+            set: function(value) {
+                wanderRange = value;
+            }
+        },
+        // avoid
+        avoidDistance: {
+            get: function() {
+                return avoidDistance;
+            },
+            set: function(value) {
+                avoidDistance = value;
+            }
+        },
+        avoidBuffer: {
+            get: function() {
+                return avoidBuffer;
+            },
+            set: function(value) {
+                avoidBuffer = value;
+            }
+        },
+        // followPath
+        pathIndex: {
+            get: function() {
+                return pathIndex;
+            },
+            set: function(value) {
+                pathIndex = value;
+            }
+        },
+        pathThreshold: {
+            get: function() {
+                return pathThreshold;
+            },
+            set: function(value) {
+                pathThreshold = value;
+                pathThresholdSq = value * value;
+            }
+        },
+        //  flock
+        maxDistance: {
+            get: function() {
+                return maxDistance;
+            },
+            set: function(value) {
+                maxDistance = value;
+                maxDistanceSq = value * value;
+            }
+        },
+        minDistance: {
+            get: function() {
+                return minDistance;
+            },
+            set: function(value) {
+                minDistance = value;
+                minDistanceSq = value * value;
+            }
+        }
     });
 
     return Object.freeze(boid);
@@ -479,13 +547,13 @@ Vec2.prototype = {
         */
         return this.x * vec.y - this.y * vec.x;
     },
-    distanceSquared: function(vec) {
+    distanceSq: function(vec) {
         var dx = vec.x - this.x;
         var dy = vec.y - this.y;
         return dx * dx + dy * dy;
     },
     distance: function(vec) {
-        return Math.sqrt(this.distanceSquared(vec));
+        return Math.sqrt(this.distanceSq(vec));
     },
     clone: function() {
         return Vec2.get(this.x, this.y);
@@ -555,6 +623,12 @@ Vec2.get = function(x, y) {
     return v;
 };
 
+Vec2.fill = function(n) {
+    while (Vec2.pool.length < n) {
+        Vec2.pool.push(new Vec2());
+    }
+};
+
 Vec2.angleBetween = function(a, b) {
     if(!a.isNormalized()) { a = a.clone().normalize(); }
     if(!b.isNormalized()) { b = b.clone().normalize(); }
@@ -566,5 +640,4 @@ if (typeof module === 'object' && module.exports) {
 }
 
 },{}]},{},[1])(1)
-});
-//# sourceMappingURL=data:application/json;charset:utf-8;base64,{"version":3,"sources":["node_modules/browserify/node_modules/browser-pack/_prelude.js","src/boid.js","src/vec2.js"],"names":[],"mappings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zZA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA","file":"generated.js","sourceRoot":"","sourcesContent":["(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","'use strict';\n\nvar Vec2 = require('./vec2.js');\n\nfunction Boid() {\n    var position = Vec2.get();\n    var velocity = Vec2.get();\n    var steeringForce = Vec2.get();\n    var bounds = {x:0, y:0, width:640, height:480};\n    var edgeBehavior = Boid.EDGE_BOUNCE;\n    var mass = 1.0;\n    var maxSpeed = 10;\n    var maxForce = 1;\n    // arrive\n    var arriveThreshold = 50;\n    // wander\n    var wanderDistance = 10;\n    var wanderRadius = 5;\n    var wanderAngle = 0;\n    var wanderRange = 1;\n    // avoid\n    var avoidDistance = 300;\n    var avoidBuffer = 20;\n    // follow path\n    var pathIndex = 0;\n    var pathThreshold = 20;\n    // flock\n    var inSightDistance = 300;\n    var tooCloseDistance = 60;\n\n    var setBounds = function(width, height, x, y) {\n        bounds.width = width;\n        bounds.height = height;\n        bounds.x = x || 0;\n        bounds.y = y || 0;\n\n        return boid;\n    };\n\n    var update = function() {\n        steeringForce.truncate(maxForce);\n        steeringForce.divideBy(mass);\n        velocity.add(steeringForce);\n        steeringForce.reset();\n        velocity.truncate(maxSpeed);\n        position.add(velocity);\n\n        if (edgeBehavior === Boid.EDGE_BOUNCE) {\n            bounce();\n        } else if (edgeBehavior === Boid.EDGE_WRAP) {\n            wrap();\n        }\n        return boid;\n    };\n\n    var bounce = function() {\n        if (position.x > bounds.width) {\n            position.x = bounds.width;\n            velocity.x *= -1;\n        } else if (position.x < bounds.x) {\n            position.x = bounds.x;\n            velocity.x *= -1;\n        }\n        if (position.y > bounds.height) {\n            position.y = bounds.height;\n            velocity.y *= -1;\n        } else if (position.y < bounds.y) {\n            position.y = bounds.y;\n            velocity.y *= -1;\n        }\n    };\n\n    var wrap = function() {\n        if (position.x > bounds.width) {\n            position.x = bounds.x;\n        } else if (position.x < bounds.x) {\n            position.x = bounds.width;\n        }\n        if (position.y > bounds.height) {\n            position.y = bounds.y;\n        } else if (position.y < bounds.y) {\n            position.y = bounds.height;\n        }\n    };\n\n    var seek = function(targetVec) {\n        var desiredVelocity = targetVec.clone().subtract(position);\n        desiredVelocity.normalize();\n        desiredVelocity.scaleBy(maxSpeed);\n\n        var force = desiredVelocity.subtract(velocity);\n        steeringForce.add(force);\n        force.dispose();\n\n        return boid;\n    };\n\n    var flee = function(targetVec) {\n        var desiredVelocity = targetVec.clone().subtract(position);\n        desiredVelocity.normalize();\n        desiredVelocity.scaleBy(maxSpeed);\n\n        var force = desiredVelocity.subtract(velocity);\n        steeringForce.subtract(force);\n        force.dispose();\n\n        return boid;\n    };\n\n    // seek until within arriveThreshold\n    var arrive = function(targetVec) {\n        var desiredVelocity = targetVec.clone().subtract(position);\n        desiredVelocity.normalize();\n\n        var distance = position.distance(targetVec);\n        if (distance > arriveThreshold) {\n            desiredVelocity.scaleBy(maxSpeed);\n        } else {\n            var scalar = maxSpeed * distance / arriveThreshold;\n            desiredVelocity.scaleBy(scalar);\n        }\n        var force = desiredVelocity.subtract(velocity);\n        steeringForce.add(force);\n        force.dispose();\n\n        return boid;\n    };\n\n    // look at velocity of boid and try to predict where it's going\n    var pursue = function(targetBoid) {\n        var lookAheadTime = position.distance(targetBoid.position) / maxSpeed;\n        // e.g. of where new vec should be returned:\n        var scaledVelocity = targetBoid.velocity.clone().scaleBy(lookAheadTime);\n        var predictedTarget = targetBoid.position.clone().add(scaledVelocity);\n        seek(predictedTarget);\n\n        scaledVelocity.dispose();\n        predictedTarget.dispose();\n\n        return boid;\n    };\n\n    // look at velocity of boid and try to predict where it's going\n    var evade = function(targetBoid) {\n        var lookAheadTime = position.distance(targetBoid.position) / maxSpeed;\n        // e.g. of where new vec should be returned:\n        var scaledVelocity = targetBoid.velocity.clone().scaleBy(lookAheadTime);\n        var predictedTarget = targetBoid.position.clone().add(scaledVelocity);\n        // only this line diff from pursue:\n        flee(predictedTarget);\n\n        scaledVelocity.dispose();\n        predictedTarget.dispose();\n\n        return boid;\n    };\n\n    // wander around, changing angle by a limited amount each tick\n    var wander = function() {\n        var center = velocity.clone().normalize().scaleBy(wanderDistance);\n\n        var offset = Vec2.get();\n        offset.length = wanderRadius;\n        offset.angle = wanderAngle;\n        wanderAngle += Math.random() * wanderRange - wanderRange * 0.5;\n\n        var force = center.add(offset);\n        steeringForce.add(force);\n\n        offset.dispose();\n        force.dispose();\n\n        return boid;\n    };\n\n    // gets a bit rough used in combination with seeking as the boid attempts\n    // to seek straight through an object while simultaneously trying to avoid it\n    var avoid = function(obstacles) {\n        for (var i = 0; i < obstacles.length; i++) {\n            var obstacle = obstacles[i];\n            var heading = velocity.clone().normalize();\n\n            // vec between obstacle and boid\n            var difference = obstacle.position.clone().subtract(position);\n            var dotProd = difference.dotProduct(heading);\n\n            // if obstacle in front of boid\n            if (dotProd > 0) {\n                // vec to represent 'feeler' arm\n                var feeler = heading.clone().scaleBy(avoidDistance);\n                // project difference onto feeler\n                var projection = heading.clone().scaleBy(dotProd);\n                // distance from obstacle to feeler\n                var vecDistance = projection.subtract(difference);\n                var distance = vecDistance.length;\n                // if feeler intersects obstacle (plus buffer), and projection\n                // less than feeler length, will collide\n                if (distance < (obstacle.radius || 0) + avoidBuffer && projection.length < feeler.length) {\n                    // calc a force +/- 90 deg from vec to circ\n                    var force = heading.clone().scaleBy(maxSpeed);\n                    force.angle += difference.sign(velocity) * Math.PI / 2;\n                    // scale force by distance (further = smaller force)\n                    force.scaleBy(1 - projection.length / feeler.length);\n                    // add to steering force\n                    steeringForce.add(force);\n                    // braking force - slows boid down so it has time to turn (closer = harder)\n                    velocity.scaleBy(projection.length / feeler.length);\n\n                    force.dispose();\n                }\n                feeler.dispose();\n                projection.dispose();\n                vecDistance.dispose();\n            }\n            heading.dispose();\n            difference.dispose();\n        }\n        return boid;\n    };\n\n    // follow a path made up of an array or vectors\n    var followPath = function(path, loop) {\n        loop = !!loop;\n\n        var wayPoint = path[pathIndex];\n        if (!wayPoint) {\n          pathIndex = 0;\n          return boid;\n        }\n        if (position.distance(wayPoint) < pathThreshold) {\n            if (pathIndex >= path.length-1) {\n                if (loop) { pathIndex = 0; }\n            }\n            else {\n                pathIndex++;\n            }\n        }\n        if (pathIndex >= path.length-1 && !loop) {\n            arrive(wayPoint);\n        }\n        else {\n            seek(wayPoint);\n        }\n        return boid;\n    };\n\n    // flock - group of boids loosely move together\n    var flock = function(boids) {\n        var averageVelocity = velocity.clone();\n        var averagePosition = Vec2.get();\n        var inSightCount = 0;\n        for (var i = 0; i < boids.length; i++) {\n            var b = boids[i];\n            if (b !== boid && inSight(b)) {\n                averageVelocity.add(b.velocity);\n                averagePosition.add(b.position);\n                if (tooClose(b)) {\n                    flee(b.position);\n                }\n                inSightCount++;\n            }\n        }\n        if (inSightCount > 0) {\n            averageVelocity.divideBy(inSightCount);\n            averagePosition.divideBy(inSightCount);\n            seek(averagePosition);\n            steeringForce.add(averageVelocity.subtract(velocity));\n        }\n        averageVelocity.dispose();\n        averagePosition.dispose();\n\n        return boid;\n    };\n\n    // is boid close enough to be in sight? for use with flock\n    var inSight = function(boid) {\n        if (position.distance(boid.position) > inSightDistance) {\n            return false;\n        }\n        var heading = velocity.clone().normalize();\n        var difference = boid.position.clone().subtract(position);\n        var dotProd = difference.dotProduct(heading);\n\n        heading.dispose();\n        difference.dispose();\n\n        if (dotProd < 0) {\n            return false;\n        }\n        return true;\n    };\n\n    // is boid too close? for use with flock\n    var tooClose = function(boid) {\n        return position.distance(boid.position) < tooCloseDistance;\n    };\n\n    // methods\n    var boid = {\n      setBounds: setBounds,\n      update: update,\n      pursue: pursue,\n      evade: evade,\n      wander: wander,\n      avoid: avoid,\n      followPath: followPath,\n      flock: flock,\n      arrive: arrive,\n      flee: flee,\n      userData: {}\n    };\n\n    // getters / setters\n    Object.defineProperties(boid, {\n      position: {\n          get: function() { return position; }\n      },\n      velocity: {\n          get: function() { return velocity; }\n      },\n      edgeBehavior: {\n          get: function() { return edgeBehavior; },\n          set: function(value) { edgeBehavior = value; }\n      },\n      mass: {\n          get: function() { return mass; },\n          set: function(value) { mass = value; }\n      },\n      maxSpeed: {\n          get: function() { return maxSpeed; },\n          set: function(value) { maxSpeed = value; }\n      },\n      maxForce: {\n          get: function() { return maxForce; },\n          set: function(value) { maxForce = value; }\n      },\n      // arrive\n      arriveThreshold: {\n          get: function() { return arriveThreshold; },\n          set: function(value) { arriveThreshold = value; }\n      },\n      // wander\n      wanderDistance: {\n          get: function() { return wanderDistance; },\n          set: function(value) { wanderDistance = value; }\n      },\n      wanderRadius: {\n          get: function() { return wanderRadius; },\n          set: function(value) { wanderRadius = value; }\n      },\n      wanderRange: {\n          get: function() { return wanderRange; },\n          set: function(value) { wanderRange = value; }\n      },\n      // avoid\n      avoidDistance: {\n          get: function() { return avoidDistance; },\n          set: function(value) { avoidDistance = value; }\n      },\n      avoidBuffer: {\n          get: function() { return avoidBuffer; },\n          set: function(value) { avoidBuffer = value; }\n      },\n      // followPath\n      pathIndex: {\n          get: function() { return pathIndex; },\n          set: function(value) { pathIndex = value; }\n      },\n      pathThreshold: {\n          get: function() { return pathThreshold; },\n          set: function(value) { pathThreshold = value; }\n      },\n      //  flock\n      inSightDistance: {\n          get: function() { return inSightDistance; },\n          set: function(value) { inSightDistance = value; }\n      },\n      tooCloseDistance: {\n          get: function() { return tooCloseDistance; },\n          set: function(value) { tooCloseDistance = value; }\n      }\n    });\n\n    return Object.freeze(boid);\n}\n\n// edge behaviors\nBoid.EDGE_NONE = 'none';\nBoid.EDGE_BOUNCE = 'bounce';\nBoid.EDGE_WRAP = 'wrap';\n\n// vec2\nBoid.Vec2 = Vec2;\n\nBoid.vec2 = function(x, y) {\n    return Vec2.get(x, y);\n};\n\n// for defining obstacles or areas to avoid\nBoid.obstacle = function(radius, x, y) {\n    return {\n        radius: radius,\n        position: Vec2.get(x, y)\n    };\n};\n\nif (typeof module === 'object' && module.exports) {\n    module.exports = Boid;\n}\n","'use strict';\r\n\r\nfunction Vec2(x, y) {\r\n    this.x = x || 0;\r\n    this.y = y || 0;\r\n}\r\n\r\nVec2.prototype = {\r\n    add: function(vec) {\r\n        this.x = this.x + vec.x;\r\n        this.y = this.y + vec.y;\r\n        return this;\r\n    },\r\n    subtract: function(vec) {\r\n        this.x = this.x - vec.x;\r\n        this.y = this.y - vec.y;\r\n        return this;\r\n    },\r\n    normalize: function() {\r\n        var l = this.length;\r\n        if(l === 0) {\r\n            this.x = 1;\r\n            return this;\r\n        }\r\n        this.x /= l;\r\n        this.y /= l;\r\n        return this;\r\n    },\r\n    isNormalized: function() {\r\n        return this.length === 1;\r\n    },\r\n    truncate:  function(max) {\r\n        if(this.length > max) {\r\n            this.length = max;\r\n        }\r\n        return this;\r\n    },\r\n    scaleBy: function(mul) {\r\n        this.x *= mul;\r\n        this.y *= mul;\r\n        return this;\r\n    },\r\n    divideBy: function(div) {\r\n        this.x /= div;\r\n        this.y /= div;\r\n        return this;\r\n    },\r\n    equals: function(vec) {\r\n        return this.x === vec.x && this.y === vec.y;\r\n    },\r\n    negate: function() {\r\n        this.x = -this.x;\r\n        this.y = -this.y;\r\n        return this;\r\n    },\r\n    dotProduct: function(vec) {\r\n        /*\r\n        If A and B are perpendicular (at 90 degrees to each other), the result of the dot product will be zero, because cos(Θ) will be zero.\r\n        If the angle between A and B are less than 90 degrees, the dot product will be positive (greater than zero), as cos(Θ) will be positive, and the vector lengths are always positive values.\r\n        If the angle between A and B are greater than 90 degrees, the dot product will be negative (less than zero), as cos(Θ) will be negative, and the vector lengths are always positive values\r\n        */\r\n        return this.x * vec.x + this.y * vec.y;\r\n    },\r\n    crossProduct: function(vec) {\r\n        /*\r\n        The sign tells us if vec to the left (-) or the right (+) of this vec\r\n        */\r\n        return this.x * vec.y - this.y * vec.x;\r\n    },\r\n    distanceSquared: function(vec) {\r\n        var dx = vec.x - this.x;\r\n        var dy = vec.y - this.y;\r\n        return dx * dx + dy * dy;\r\n    },\r\n    distance: function(vec) {\r\n        return Math.sqrt(this.distanceSquared(vec));\r\n    },\r\n    clone: function() {\r\n        return Vec2.get(this.x, this.y);\r\n    },\r\n    reset: function() {\r\n        this.x = 0;\r\n        this.y = 0;\r\n        return this;\r\n    },\r\n    perpendicular: function() {\r\n        return Vec2.get(-this.y, this.x);\r\n    },\r\n    sign: function(vec) {\r\n        // Determines if a given vector is to the right or left of this vector.\r\n        // If to the left, returns -1. If to the right, +1.\r\n        var p = this.perpendicular();\r\n        var s = p.dotProduct(vec) < 0 ? -1 : 1;\r\n        p.dispose();\r\n        return s;\r\n    },\r\n    set: function(x, y) {\r\n        this.x = x || 0;\r\n        this.y = y || 0;\r\n        return this;\r\n    },\r\n    dispose: function() {\r\n        Vec2.pool.push(this.reset());\r\n    }\r\n};\r\n\r\n// getters / setters\r\n\r\nObject.defineProperties(Vec2.prototype, {\r\n  lengthSquared: {\r\n      get: function() {\r\n          return this.x * this.x + this.y * this.y;\r\n      }\r\n  },\r\n  length: {\r\n      get: function() {\r\n          return Math.sqrt(this.lengthSquared);\r\n      },\r\n      set: function(value) {\r\n          var a = this.angle;\r\n          this.x = Math.cos(a) * value;\r\n          this.y = Math.sin(a) * value;\r\n      }\r\n  },\r\n  angle: {\r\n      get: function() {\r\n          return Math.atan2(this.y, this.x);\r\n      },\r\n      set: function(value) {\r\n          var l = this.length;\r\n          this.x = Math.cos(value) * l;\r\n          this.y = Math.sin(value) * l;\r\n      }\r\n  }\r\n});\r\n\r\n// static\r\n\r\nVec2.pool = [];\r\nVec2.get = function(x, y) {\r\n    var v = Vec2.pool.length > 0 ? Vec2.pool.pop() : new Vec2();\r\n    v.set(x, y);\r\n    return v;\r\n};\r\n\r\nVec2.angleBetween = function(a, b) {\r\n    if(!a.isNormalized()) { a = a.clone().normalize(); }\r\n    if(!b.isNormalized()) { b = b.clone().normalize(); }\r\n    return Math.acos(a.dotProduct(b));\r\n};\r\n\r\nif (typeof module === 'object' && module.exports) {\r\n    module.exports = Vec2;\r\n}\r\n"]}
+});
\ No newline at end of file
diff --git a/dist/boid.min.js b/dist/boid.min.js
index 4d929ff..6d9bdd8 100644
--- a/dist/boid.min.js
+++ b/dist/boid.min.js
@@ -1 +1 @@
-!function(t){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var e;e="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,e.Boid=t()}}(function(){return function t(e,n,i){function r(s,u){if(!n[s]){if(!e[s]){var c="function"==typeof require&&require;if(!u&&c)return c(s,!0);if(o)return o(s,!0);var a=new Error("Cannot find module '"+s+"'");throw a.code="MODULE_NOT_FOUND",a}var d=n[s]={exports:{}};e[s][0].call(d.exports,function(t){var n=e[s][1][t];return r(n?n:t)},d,d.exports,t,e,n,i)}return n[s].exports}for(var o="function"==typeof require&&require,s=0;s<i.length;s++)r(i[s]);return r}({1:[function(t,e,n){"use strict";function i(){var t=r.get(),e=r.get(),n=r.get(),o={x:0,y:0,width:640,height:480},s=i.EDGE_BOUNCE,u=1,c=10,a=1,d=50,h=10,f=5,l=0,y=1,p=300,g=20,x=0,v=20,B=300,b=60,m=function(t,e,n,i){return o.width=t,o.height=e,o.x=n||0,o.y=i||0,U},w=function(){return n.truncate(a),n.divideBy(u),e.add(n),n.reset(),e.truncate(c),t.add(e),s===i.EDGE_BOUNCE?E():s===i.EDGE_WRAP&&z(),U},E=function(){t.x>o.width?(t.x=o.width,e.x*=-1):t.x<o.x&&(t.x=o.x,e.x*=-1),t.y>o.height?(t.y=o.height,e.y*=-1):t.y<o.y&&(t.y=o.y,e.y*=-1)},z=function(){t.x>o.width?t.x=o.x:t.x<o.x&&(t.x=o.width),t.y>o.height?t.y=o.y:t.y<o.y&&(t.y=o.height)},D=function(i){var r=i.clone().subtract(t);r.normalize(),r.scaleBy(c);var o=r.subtract(e);return n.add(o),o.dispose(),U},P=function(i){var r=i.clone().subtract(t);r.normalize(),r.scaleBy(c);var o=r.subtract(e);return n.subtract(o),o.dispose(),U},q=function(i){var r=i.clone().subtract(t);r.normalize();var o=t.distance(i);if(o>d)r.scaleBy(c);else{var s=c*o/d;r.scaleBy(s)}var u=r.subtract(e);return n.add(u),u.dispose(),U},M=function(e){var n=t.distance(e.position)/c,i=e.velocity.clone().scaleBy(n),r=e.position.clone().add(i);return D(r),i.dispose(),r.dispose(),U},N=function(e){var n=t.distance(e.position)/c,i=e.velocity.clone().scaleBy(n),r=e.position.clone().add(i);return P(r),i.dispose(),r.dispose(),U},O=function(){var t=e.clone().normalize().scaleBy(h),i=r.get();i.length=f,i.angle=l,l+=Math.random()*y-.5*y;var o=t.add(i);return n.add(o),i.dispose(),o.dispose(),U},j=function(i){for(var r=0;r<i.length;r++){var o=i[r],s=e.clone().normalize(),u=o.position.clone().subtract(t),a=u.dotProduct(s);if(a>0){var d=s.clone().scaleBy(p),h=s.clone().scaleBy(a),f=h.subtract(u),l=f.length;if(l<(o.radius||0)+g&&h.length<d.length){var y=s.clone().scaleBy(c);y.angle+=u.sign(e)*Math.PI/2,y.scaleBy(1-h.length/d.length),n.add(y),e.scaleBy(h.length/d.length),y.dispose()}d.dispose(),h.dispose(),f.dispose()}s.dispose(),u.dispose()}return U},_=function(e,n){n=!!n;var i=e[x];return i?(t.distance(i)<v&&(x>=e.length-1?n&&(x=0):x++),x>=e.length-1&&!n?q(i):D(i),U):(x=0,U)},G=function(t){for(var i=e.clone(),o=r.get(),s=0,u=0;u<t.length;u++){var c=t[u];c!==U&&S(c)&&(i.add(c.velocity),o.add(c.position),C(c)&&P(c.position),s++)}return s>0&&(i.divideBy(s),o.divideBy(s),D(o),n.add(i.subtract(e))),i.dispose(),o.dispose(),U},S=function(n){if(t.distance(n.position)>B)return!1;var i=e.clone().normalize(),r=n.position.clone().subtract(t),o=r.dotProduct(i);return i.dispose(),r.dispose(),0>o?!1:!0},C=function(e){return t.distance(e.position)<b},U={setBounds:m,update:w,pursue:M,evade:N,wander:O,avoid:j,followPath:_,flock:G,arrive:q,flee:P,userData:{}};return Object.defineProperties(U,{position:{get:function(){return t}},velocity:{get:function(){return e}},edgeBehavior:{get:function(){return s},set:function(t){s=t}},mass:{get:function(){return u},set:function(t){u=t}},maxSpeed:{get:function(){return c},set:function(t){c=t}},maxForce:{get:function(){return a},set:function(t){a=t}},arriveThreshold:{get:function(){return d},set:function(t){d=t}},wanderDistance:{get:function(){return h},set:function(t){h=t}},wanderRadius:{get:function(){return f},set:function(t){f=t}},wanderRange:{get:function(){return y},set:function(t){y=t}},avoidDistance:{get:function(){return p},set:function(t){p=t}},avoidBuffer:{get:function(){return g},set:function(t){g=t}},pathIndex:{get:function(){return x},set:function(t){x=t}},pathThreshold:{get:function(){return v},set:function(t){v=t}},inSightDistance:{get:function(){return B},set:function(t){B=t}},tooCloseDistance:{get:function(){return b},set:function(t){b=t}}}),Object.freeze(U)}var r=t("./vec2.js");i.EDGE_NONE="none",i.EDGE_BOUNCE="bounce",i.EDGE_WRAP="wrap",i.Vec2=r,i.vec2=function(t,e){return r.get(t,e)},i.obstacle=function(t,e,n){return{radius:t,position:r.get(e,n)}},"object"==typeof e&&e.exports&&(e.exports=i)},{"./vec2.js":2}],2:[function(t,e,n){"use strict";function i(t,e){this.x=t||0,this.y=e||0}i.prototype={add:function(t){return this.x=this.x+t.x,this.y=this.y+t.y,this},subtract:function(t){return this.x=this.x-t.x,this.y=this.y-t.y,this},normalize:function(){var t=this.length;return 0===t?(this.x=1,this):(this.x/=t,this.y/=t,this)},isNormalized:function(){return 1===this.length},truncate:function(t){return this.length>t&&(this.length=t),this},scaleBy:function(t){return this.x*=t,this.y*=t,this},divideBy:function(t){return this.x/=t,this.y/=t,this},equals:function(t){return this.x===t.x&&this.y===t.y},negate:function(){return this.x=-this.x,this.y=-this.y,this},dotProduct:function(t){return this.x*t.x+this.y*t.y},crossProduct:function(t){return this.x*t.y-this.y*t.x},distanceSquared:function(t){var e=t.x-this.x,n=t.y-this.y;return e*e+n*n},distance:function(t){return Math.sqrt(this.distanceSquared(t))},clone:function(){return i.get(this.x,this.y)},reset:function(){return this.x=0,this.y=0,this},perpendicular:function(){return i.get(-this.y,this.x)},sign:function(t){var e=this.perpendicular(),n=e.dotProduct(t)<0?-1:1;return e.dispose(),n},set:function(t,e){return this.x=t||0,this.y=e||0,this},dispose:function(){i.pool.push(this.reset())}},Object.defineProperties(i.prototype,{lengthSquared:{get:function(){return this.x*this.x+this.y*this.y}},length:{get:function(){return Math.sqrt(this.lengthSquared)},set:function(t){var e=this.angle;this.x=Math.cos(e)*t,this.y=Math.sin(e)*t}},angle:{get:function(){return Math.atan2(this.y,this.x)},set:function(t){var e=this.length;this.x=Math.cos(t)*e,this.y=Math.sin(t)*e}}}),i.pool=[],i.get=function(t,e){var n=i.pool.length>0?i.pool.pop():new i;return n.set(t,e),n},i.angleBetween=function(t,e){return t.isNormalized()||(t=t.clone().normalize()),e.isNormalized()||(e=e.clone().normalize()),Math.acos(t.dotProduct(e))},"object"==typeof e&&e.exports&&(e.exports=i)},{}]},{},[1])(1)});
\ No newline at end of file
+!function(t){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var e;e="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,e.Boid=t()}}(function(){return function t(e,n,i){function r(s,u){if(!n[s]){if(!e[s]){var c="function"==typeof require&&require;if(!u&&c)return c(s,!0);if(o)return o(s,!0);var a=new Error("Cannot find module '"+s+"'");throw a.code="MODULE_NOT_FOUND",a}var h=n[s]={exports:{}};e[s][0].call(h.exports,function(t){var n=e[s][1][t];return r(n?n:t)},h,h.exports,t,e,n,i)}return n[s].exports}for(var o="function"==typeof require&&require,s=0;s<i.length;s++)r(i[s]);return r}({1:[function(t,e,n){"use strict";function i(){var t=r.get(),e=r.get(),n=r.get(),o={x:0,y:0,width:640,height:480},s=i.EDGE_BOUNCE,u=1,c=10,a=c*c,h=1,d=50,f=d*d,l=10,p=5,y=0,g=1,x=300,v=20,B=0,b=20,m=b*b,w=300,E=w*w,q=60,z=q*q,D=function(t,e,n,i){return o.width=t,o.height=e,o.x=n||0,o.y=i||0,I},P=function(){return n.truncate(h),n.divideBy(u),e.add(n),n.reset(),e.truncate(c),t.add(e),s===i.EDGE_BOUNCE?M():s===i.EDGE_WRAP&&S(),I},M=function(){t.x>o.width?(t.x=o.width,e.x*=-1):t.x<o.x&&(t.x=o.x,e.x*=-1),t.y>o.height?(t.y=o.height,e.y*=-1):t.y<o.y&&(t.y=o.y,e.y*=-1)},S=function(){t.x>o.width?t.x=o.x:t.x<o.x&&(t.x=o.width),t.y>o.height?t.y=o.y:t.y<o.y&&(t.y=o.height)},N=function(i){var r=i.clone().subtract(t);r.normalize(),r.scaleBy(c);var o=r.subtract(e);return n.add(o),o.dispose(),I},O=function(i){var r=i.clone().subtract(t);r.normalize(),r.scaleBy(c);var o=r.subtract(e);return n.subtract(o),o.dispose(),I},j=function(i){var r=i.clone().subtract(t);r.normalize();var o=t.distanceSq(i);if(o>f)r.scaleBy(c);else{var s=c*o/f;r.scaleBy(s)}var u=r.subtract(e);return n.add(u),u.dispose(),I},_=function(e){var n=t.distanceSq(e.position)/a,i=e.velocity.clone().scaleBy(n),r=e.position.clone().add(i);return N(r),i.dispose(),r.dispose(),I},G=function(e){var n=t.distanceSq(e.position)/a,i=e.velocity.clone().scaleBy(n),r=e.position.clone().add(i);return O(r),i.dispose(),r.dispose(),I},U=function(){var t=e.clone().normalize().scaleBy(l),i=r.get();i.length=p,i.angle=y,y+=Math.random()*g-.5*g;var o=t.add(i);return n.add(o),i.dispose(),o.dispose(),I},C=function(i){for(var r=0;r<i.length;r++){var o=i[r],s=e.clone().normalize(),u=o.position.clone().subtract(t),a=u.dotProduct(s);if(a>0){var h=s.clone().scaleBy(x),d=s.clone().scaleBy(a),f=d.subtract(u),l=f.length;if(l<(o.radius||0)+v&&d.length<h.length){var p=s.clone().scaleBy(c);p.angle+=u.sign(e)*Math.PI/2,p.scaleBy(1-d.length/h.length),n.add(p),e.scaleBy(d.length/h.length),p.dispose()}h.dispose(),d.dispose(),f.dispose()}s.dispose(),u.dispose()}return I},R=function(e,n){n=!!n;var i=e[B];return i?(t.distanceSq(i)<m&&(B>=e.length-1?n&&(B=0):B++),B>=e.length-1&&!n?j(i):N(i),I):(B=0,I)},T=function(t){for(var i=e.clone(),o=r.get(),s=0,u=0;u<t.length;u++){var c=t[u];c!==I&&A(c)&&(i.add(c.velocity),o.add(c.position),F(c)&&O(c.position),s++)}return s>0&&(i.divideBy(s),o.divideBy(s),N(o),n.add(i.subtract(e))),i.dispose(),o.dispose(),I},A=function(n){if(t.distanceSq(n.position)>E)return!1;var i=e.clone().normalize(),r=n.position.clone().subtract(t),o=r.dotProduct(i);return i.dispose(),r.dispose(),0>o?!1:!0},F=function(e){return t.distanceSq(e.position)<z},I={setBounds:D,update:P,pursue:_,evade:G,wander:U,avoid:C,followPath:R,flock:T,arrive:j,flee:O,position:t,velocity:e,userData:{}};return Object.defineProperties(I,{edgeBehavior:{get:function(){return s},set:function(t){s=t}},mass:{get:function(){return u},set:function(t){u=t}},maxSpeed:{get:function(){return c},set:function(t){c=t,a=t*t}},maxForce:{get:function(){return h},set:function(t){h=t}},arriveThreshold:{get:function(){return d},set:function(t){d=t,f=t*t}},wanderDistance:{get:function(){return l},set:function(t){l=t}},wanderRadius:{get:function(){return p},set:function(t){p=t}},wanderRange:{get:function(){return g},set:function(t){g=t}},avoidDistance:{get:function(){return x},set:function(t){x=t}},avoidBuffer:{get:function(){return v},set:function(t){v=t}},pathIndex:{get:function(){return B},set:function(t){B=t}},pathThreshold:{get:function(){return b},set:function(t){b=t,m=t*t}},maxDistance:{get:function(){return w},set:function(t){w=t,E=t*t}},minDistance:{get:function(){return q},set:function(t){q=t,z=t*t}}}),Object.freeze(I)}var r=t("./vec2.js");i.EDGE_NONE="none",i.EDGE_BOUNCE="bounce",i.EDGE_WRAP="wrap",i.Vec2=r,i.vec2=function(t,e){return r.get(t,e)},i.obstacle=function(t,e,n){return{radius:t,position:r.get(e,n)}},"object"==typeof e&&e.exports&&(e.exports=i)},{"./vec2.js":2}],2:[function(t,e,n){"use strict";function i(t,e){this.x=t||0,this.y=e||0}i.prototype={add:function(t){return this.x=this.x+t.x,this.y=this.y+t.y,this},subtract:function(t){return this.x=this.x-t.x,this.y=this.y-t.y,this},normalize:function(){var t=this.length;return 0===t?(this.x=1,this):(this.x/=t,this.y/=t,this)},isNormalized:function(){return 1===this.length},truncate:function(t){return this.length>t&&(this.length=t),this},scaleBy:function(t){return this.x*=t,this.y*=t,this},divideBy:function(t){return this.x/=t,this.y/=t,this},equals:function(t){return this.x===t.x&&this.y===t.y},negate:function(){return this.x=-this.x,this.y=-this.y,this},dotProduct:function(t){return this.x*t.x+this.y*t.y},crossProduct:function(t){return this.x*t.y-this.y*t.x},distanceSq:function(t){var e=t.x-this.x,n=t.y-this.y;return e*e+n*n},distance:function(t){return Math.sqrt(this.distanceSq(t))},clone:function(){return i.get(this.x,this.y)},reset:function(){return this.x=0,this.y=0,this},perpendicular:function(){return i.get(-this.y,this.x)},sign:function(t){var e=this.perpendicular(),n=e.dotProduct(t)<0?-1:1;return e.dispose(),n},set:function(t,e){return this.x=t||0,this.y=e||0,this},dispose:function(){i.pool.push(this.reset())}},Object.defineProperties(i.prototype,{lengthSquared:{get:function(){return this.x*this.x+this.y*this.y}},length:{get:function(){return Math.sqrt(this.lengthSquared)},set:function(t){var e=this.angle;this.x=Math.cos(e)*t,this.y=Math.sin(e)*t}},angle:{get:function(){return Math.atan2(this.y,this.x)},set:function(t){var e=this.length;this.x=Math.cos(t)*e,this.y=Math.sin(t)*e}}}),i.pool=[],i.get=function(t,e){var n=i.pool.length>0?i.pool.pop():new i;return n.set(t,e),n},i.fill=function(t){for(;i.pool.length<t;)i.pool.push(new i)},i.angleBetween=function(t,e){return t.isNormalized()||(t=t.clone().normalize()),e.isNormalized()||(e=e.clone().normalize()),Math.acos(t.dotProduct(e))},"object"==typeof e&&e.exports&&(e.exports=i)},{}]},{},[1])(1)});
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
index 737b12d..739cdcd 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -23,10 +23,12 @@ function logError(msg) {
 
 // bundler
 var bundler = watchify(browserify({
-  entries: ['./src/' + entryFileName],
+  entries: ['src/' + entryFileName],
   standalone: standaloneName,
-  debug: true
-}, watchify.args));
+  debug: true,
+  cache: {},
+  packageCache: {}
+}), {poll: true});
 
 function bundle() {
   return bundler
@@ -101,6 +103,7 @@ gulp.task('jshint', function() {
 gulp.task('watch', function() {
   gulp.watch('test/**/*.js', ['jshint']);
   gulp.watch('examples/**/*.js', ['jshint']);
+  gulp.watch('src/**/*.js', ['bundle']);
 });
 
 // default
diff --git a/package.json b/package.json
index d22f3d6..1d86d35 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "boid",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Bird-like behaviours",
   "keywords": [
     "boid",
@@ -21,22 +21,22 @@
   },
   "devDependencies": {
     "browser-sync": "^2.7.0",
-    "browserify": "^10.0.0",
-    "chai": "^2.3.0",
+    "browserify": "^11.2.0",
+    "chai": "^3.4.0",
     "chalk": "^1.0.0",
     "events": "^1.0.2",
     "gulp": "^3.8.11",
-    "gulp-if": "^1.2.5",
+    "gulp-if": "^2.0.0",
     "gulp-jshint": "^1.10.0",
     "gulp-rename": "^1.2.2",
     "gulp-strip-debug": "^1.0.2",
     "gulp-uglify": "^1.2.0",
-    "jshint-stylish": "^1.0.2",
-    "karma": "^0.12.31",
+    "jshint-stylish": "^2.0.1",
+    "karma": "^0.13.11",
     "karma-browserify": "^4.1.2",
     "karma-chai": "^0.1.0",
-    "karma-mocha": "^0.1.10",
-    "karma-phantomjs-launcher": "^0.1.4",
+    "karma-mocha": "^0.2.0",
+    "karma-phantomjs-launcher": "^0.2.1",
     "mocha": "^2.2.4",
     "vinyl-buffer": "^1.0.0",
     "vinyl-source-stream": "^1.1.0",