diff --git a/bin/easystar-0.4.4.js b/bin/easystar-0.4.4.js
index ba4d9b5..a9ff8e3 100644
--- a/bin/easystar-0.4.4.js
+++ b/bin/easystar-0.4.4.js
@@ -272,7 +272,7 @@ if(0!==instance.openList.size()){var searchNode=instance.openList.pop();// Handl
 if(instance.endX!==searchNode.x||instance.endY!==searchNode.y)searchNode.list=0,searchNode.y>0&&checkAdjacentNode(instance,searchNode,0,-1,1*getTileCost(searchNode.x,searchNode.y-1)),searchNode.x<collisionGrid[0].length-1&&checkAdjacentNode(instance,searchNode,1,0,1*getTileCost(searchNode.x+1,searchNode.y)),searchNode.y<collisionGrid.length-1&&checkAdjacentNode(instance,searchNode,0,1,1*getTileCost(searchNode.x,searchNode.y+1)),searchNode.x>0&&checkAdjacentNode(instance,searchNode,-1,0,1*getTileCost(searchNode.x-1,searchNode.y)),diagonalsEnabled&&(searchNode.x>0&&searchNode.y>0&&(allowCornerCutting||isTileWalkable(collisionGrid,acceptableTiles,searchNode.x,searchNode.y-1,searchNode)&&isTileWalkable(collisionGrid,acceptableTiles,searchNode.x-1,searchNode.y,searchNode))&&checkAdjacentNode(instance,searchNode,-1,-1,1.4*getTileCost(searchNode.x-1,searchNode.y-1)),searchNode.x<collisionGrid[0].length-1&&searchNode.y<collisionGrid.length-1&&(allowCornerCutting||isTileWalkable(collisionGrid,acceptableTiles,searchNode.x,searchNode.y+1,searchNode)&&isTileWalkable(collisionGrid,acceptableTiles,searchNode.x+1,searchNode.y,searchNode))&&checkAdjacentNode(instance,searchNode,1,1,1.4*getTileCost(searchNode.x+1,searchNode.y+1)),searchNode.x<collisionGrid[0].length-1&&searchNode.y>0&&(allowCornerCutting||isTileWalkable(collisionGrid,acceptableTiles,searchNode.x,searchNode.y-1,searchNode)&&isTileWalkable(collisionGrid,acceptableTiles,searchNode.x+1,searchNode.y,searchNode))&&checkAdjacentNode(instance,searchNode,1,-1,1.4*getTileCost(searchNode.x+1,searchNode.y-1)),searchNode.x>0&&searchNode.y<collisionGrid.length-1&&(allowCornerCutting||isTileWalkable(collisionGrid,acceptableTiles,searchNode.x,searchNode.y+1,searchNode)&&isTileWalkable(collisionGrid,acceptableTiles,searchNode.x-1,searchNode.y,searchNode))&&checkAdjacentNode(instance,searchNode,-1,1,1.4*getTileCost(searchNode.x-1,searchNode.y+1)));else{var path=[];path.push({x:searchNode.x,y:searchNode.y});for(var parent=searchNode.parent;null!=parent;)path.push({x:parent.x,y:parent.y}),parent=parent.parent;path.reverse();var ip=path;instance.callback(ip),delete instances[instanceId],instanceQueue.shift()}}else instance.callback(null),delete instances[instanceId],instanceQueue.shift();else
 // This instance was cancelled
 instanceQueue.shift()}};// Private methods follow
-var checkAdjacentNode=function(instance,searchNode,x,y,cost){var adjacentCoordinateX=searchNode.x+x,adjacentCoordinateY=searchNode.y+y;if((void 0===pointsToAvoid[adjacentCoordinateY]||void 0===pointsToAvoid[adjacentCoordinateY][adjacentCoordinateX])&&isTileWalkable(collisionGrid,acceptableTiles,adjacentCoordinateX,adjacentCoordinateY,searchNode)){var node=coordinateToNode(instance,adjacentCoordinateX,adjacentCoordinateY,searchNode,cost);void 0===node.list?(node.list=1,instance.openList.push(node)):searchNode.costSoFar+cost<node.costSoFar&&(node.costSoFar=searchNode.costSoFar+cost,node.parent=searchNode,instance.openList.updateItem(node))}},isTileWalkable=function(collisionGrid,acceptableTiles,x,y,sourceNode){var directionalCondition=directionalConditions[y]&&directionalConditions[y][x];if(directionalCondition){var direction=calculateDirection(sourceNode.x-x,sourceNode.y-y);if(!function(){for(var i=0;i<directionalCondition.length;i++)if(directionalCondition[i]===direction)return!0;return!1}())return!1}for(var i=0;i<acceptableTiles.length;i++)if(collisionGrid[y][x]===acceptableTiles[i])return!0;return!1},calculateDirection=function(diffX,diffY){if(0===diffX&&-1===diffY)return EasyStar.TOP;if(1===diffX&&-1===diffY)return EasyStar.TOP_RIGHT;if(1===diffX&&0===diffY)return EasyStar.RIGHT;if(1===diffX&&1===diffY)return EasyStar.BOTTOM_RIGHT;if(0===diffX&&1===diffY)return EasyStar.BOTTOM;if(-1===diffX&&1===diffY)return EasyStar.BOTTOM_LEFT;if(-1===diffX&&0===diffY)return EasyStar.LEFT;if(-1===diffX&&-1===diffY)return EasyStar.TOP_LEFT;throw new Error("These differences are not valid: "+diffX+", "+diffY)},getTileCost=function(x,y){return pointsToCost[y]&&pointsToCost[y][x]||costMap[collisionGrid[y][x]]},coordinateToNode=function(instance,x,y,parent,cost){if(void 0!==instance.nodeHash[y]){if(void 0!==instance.nodeHash[y][x])return instance.nodeHash[y][x]}else instance.nodeHash[y]={};var simpleDistanceToTarget=getDistance(x,y,instance.endX,instance.endY);if(null!==parent)var costSoFar=parent.costSoFar+cost;else costSoFar=0;var node=new Node(parent,x,y,costSoFar,simpleDistanceToTarget);return instance.nodeHash[y][x]=node,node},getDistance=function(x1,y1,x2,y2){
+var checkAdjacentNode=function(instance,searchNode,x,y,cost){var adjacentCoordinateX=searchNode.x+x,adjacentCoordinateY=searchNode.y+y;if((void 0===pointsToAvoid[adjacentCoordinateY]||void 0===pointsToAvoid[adjacentCoordinateY][adjacentCoordinateX])&&isTileWalkable(collisionGrid,acceptableTiles,adjacentCoordinateX,adjacentCoordinateY,searchNode)){var node=coordinateToNode(instance,adjacentCoordinateX,adjacentCoordinateY,searchNode,cost);void 0===node.list?(node.list=1,instance.openList.push(node)):searchNode.costSoFar+cost<node.costSoFar&&(node.costSoFar=searchNode.costSoFar+cost,node.parent=searchNode,instance.openList.updateItem(node))}},isTileWalkable=function(collisionGrid,acceptableTiles,x,y,sourceNode){if(pointsToAvoid[y]&&pointsToAvoid[y][x])return!1;var directionalCondition=directionalConditions[y]&&directionalConditions[y][x];if(directionalCondition){var direction=calculateDirection(sourceNode.x-x,sourceNode.y-y);if(!function(){for(var i=0;i<directionalCondition.length;i++)if(directionalCondition[i]===direction)return!0;return!1}())return!1}for(var i=0;i<acceptableTiles.length;i++)if(collisionGrid[y][x]===acceptableTiles[i])return!0;return!1},calculateDirection=function(diffX,diffY){if(0===diffX&&-1===diffY)return EasyStar.TOP;if(1===diffX&&-1===diffY)return EasyStar.TOP_RIGHT;if(1===diffX&&0===diffY)return EasyStar.RIGHT;if(1===diffX&&1===diffY)return EasyStar.BOTTOM_RIGHT;if(0===diffX&&1===diffY)return EasyStar.BOTTOM;if(-1===diffX&&1===diffY)return EasyStar.BOTTOM_LEFT;if(-1===diffX&&0===diffY)return EasyStar.LEFT;if(-1===diffX&&-1===diffY)return EasyStar.TOP_LEFT;throw new Error("These differences are not valid: "+diffX+", "+diffY)},getTileCost=function(x,y){return pointsToCost[y]&&pointsToCost[y][x]||costMap[collisionGrid[y][x]]},coordinateToNode=function(instance,x,y,parent,cost){if(void 0!==instance.nodeHash[y]){if(void 0!==instance.nodeHash[y][x])return instance.nodeHash[y][x]}else instance.nodeHash[y]={};var simpleDistanceToTarget=getDistance(x,y,instance.endX,instance.endY);if(null!==parent)var costSoFar=parent.costSoFar+cost;else costSoFar=0;var node=new Node(parent,x,y,costSoFar,simpleDistanceToTarget);return instance.nodeHash[y][x]=node,node},getDistance=function(x1,y1,x2,y2){
 // Octile distance
 var dx,dy;return diagonalsEnabled?(dx=Math.abs(x1-x2))<(dy=Math.abs(y1-y2))?1.4*dx+dy:1.4*dy+dx:(dx=Math.abs(x1-x2))+(dy=Math.abs(y1-y2))};// Helpers
 },EasyStar.TOP="TOP",EasyStar.TOP_RIGHT="TOP_RIGHT",EasyStar.RIGHT="RIGHT",EasyStar.BOTTOM_RIGHT="BOTTOM_RIGHT",EasyStar.BOTTOM="BOTTOM",EasyStar.BOTTOM_LEFT="BOTTOM_LEFT",EasyStar.LEFT="LEFT",EasyStar.TOP_LEFT="TOP_LEFT"},
@@ -345,7 +345,7 @@ heappushpop=function(array,item,cmp){var _ref;return null==cmp&&(cmp=defaultCmp)
 /*
   Transform list into a heap, in-place, in O(array.length) time.
    */
-heapify=function(array,cmp){var i,_i,_len,_ref1,_results,_results1;for(null==cmp&&(cmp=defaultCmp),_results=[],_i=0,_len=(_ref1=function(){_results1=[];for(var _j=0,_ref=floor(array.length/2);0<=_ref?_j<_ref:_j>_ref;0<=_ref?_j++:_j--)_results1.push(_j);return _results1}.apply(this).reverse()).length;_i<_len;_i++)i=_ref1[_i],_results.push(_siftup(array,i,cmp));return _results},
+heapify=function(array,cmp){var i,_i,_len,_ref1,_results,_results1;for(null==cmp&&(cmp=defaultCmp),_ref1=function(){_results1=[];for(var _j=0,_ref=floor(array.length/2);0<=_ref?_j<_ref:_j>_ref;0<=_ref?_j++:_j--)_results1.push(_j);return _results1}.apply(this).reverse(),_results=[],_i=0,_len=_ref1.length;_i<_len;_i++)i=_ref1[_i],_results.push(_siftup(array,i,cmp));return _results},
 /*
   Update the position of the given item in the heap.
   This function should be called every time the item is being modified.
diff --git a/bin/easystar-0.4.4.min.js b/bin/easystar-0.4.4.min.js
index 281537c..0886757 100644
--- a/bin/easystar-0.4.4.min.js
+++ b/bin/easystar-0.4.4.min.js
@@ -22,4 +22,4 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-var EasyStar=function(e){var o={};function r(t){if(o[t])return o[t].exports;var n=o[t]={i:t,l:!1,exports:{}};return e[t].call(n.exports,n,n.exports,r),n.l=!0,n.exports}return r.m=e,r.c=o,r.d=function(t,n,e){r.o(t,n)||Object.defineProperty(t,n,{enumerable:!0,get:e})},r.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},r.t=function(n,t){if(1&t&&(n=r(n)),8&t)return n;if(4&t&&"object"==typeof n&&n&&n.__esModule)return n;var e=Object.create(null);if(r.r(e),Object.defineProperty(e,"default",{enumerable:!0,value:n}),2&t&&"string"!=typeof n)for(var o in n)r.d(e,o,function(t){return n[t]}.bind(null,o));return e},r.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return r.d(n,"a",n),n},r.o=function(t,n){return Object.prototype.hasOwnProperty.call(t,n)},r.p="/bin/",r(r.s=0)}([function(t,n,e){var P={},M=e(1),_=e(2),A=e(3);t.exports=P;var E=1;P.js=function(){var c,i,f,s=1.4,p=!1,u={},o={},r={},l={},a=!0,h={},d=[],y=Number.MAX_VALUE,v=!1;this.setAcceptableTiles=function(t){t instanceof Array?f=t:!isNaN(parseFloat(t))&&isFinite(t)&&(f=[t])},this.enableSync=function(){p=!0},this.disableSync=function(){p=!1},this.enableDiagonals=function(){v=!0},this.disableDiagonals=function(){v=!1},this.setGrid=function(t){c=t;for(var n=0;n<c.length;n++)for(var e=0;e<c[0].length;e++)o[c[n][e]]||(o[c[n][e]]=1)},this.setTileCost=function(t,n){o[t]=n},this.setAdditionalPointCost=function(t,n,e){void 0===r[n]&&(r[n]={}),r[n][t]=e},this.removeAdditionalPointCost=function(t,n){void 0!==r[n]&&delete r[n][t]},this.removeAllAdditionalPointCosts=function(){r={}},this.setDirectionalCondition=function(t,n,e){void 0===l[n]&&(l[n]={}),l[n][t]=e},this.removeAllDirectionalConditions=function(){l={}},this.setIterationsPerCalculation=function(t){y=t},this.avoidAdditionalPoint=function(t,n){void 0===u[n]&&(u[n]={}),u[n][t]=1},this.stopAvoidingAdditionalPoint=function(t,n){void 0!==u[n]&&delete u[n][t]},this.enableCornerCutting=function(){a=!0},this.disableCornerCutting=function(){a=!1},this.stopAvoidingAllAdditionalPoints=function(){u={}},this.findPath=function(t,n,e,o,r){function i(t){p?r(t):setTimeout(function(){r(t)})}if(void 0===f)throw new Error("You can't set a path without first calling setAcceptableTiles() on EasyStar.");if(void 0===c)throw new Error("You can't set a path without first calling setGrid() on EasyStar.");if(t<0||n<0||e<0||o<0||t>c[0].length-1||n>c.length-1||e>c[0].length-1||o>c.length-1)throw new Error("Your start or end point is outside the scope of your grid.");if(t!==e||n!==o){for(var s=c[o][e],u=!1,l=0;l<f.length;l++)if(s===f[l]){u=!0;break}if(!1!==u){var a=new M;a.openList=new A(function(t,n){return t.bestGuessDistance()-n.bestGuessDistance()}),a.isDoneCalculating=!1,a.nodeHash={},a.startX=t,a.startY=n,a.endX=e,a.endY=o,a.callback=i,a.openList.push(O(a,a.startX,a.startY,null,1));o=E++;return h[o]=a,d.push(o),o}i(null)}else i([])},this.cancelPath=function(t){return t in h&&(delete h[t],!0)},this.calculate=function(){if(0!==d.length&&void 0!==c&&void 0!==f)for(i=0;i<y;i++){if(0===d.length)return;p&&(i=0);var t=d[0],n=h[t];if(void 0!==n)if(0!==n.openList.size()){var e=n.openList.pop();if(n.endX!==e.x||n.endY!==e.y)(e.list=0)<e.y&&T(n,e,0,-1,+b(e.x,e.y-1)),e.x<c[0].length-1&&T(n,e,1,0,+b(e.x+1,e.y)),e.y<c.length-1&&T(n,e,0,1,+b(e.x,e.y+1)),0<e.x&&T(n,e,-1,0,+b(e.x-1,e.y)),v&&(0<e.x&&0<e.y&&(a||g(c,f,e.x,e.y-1,e)&&g(c,f,e.x-1,e.y,e))&&T(n,e,-1,-1,s*b(e.x-1,e.y-1)),e.x<c[0].length-1&&e.y<c.length-1&&(a||g(c,f,e.x,e.y+1,e)&&g(c,f,e.x+1,e.y,e))&&T(n,e,1,1,s*b(e.x+1,e.y+1)),e.x<c[0].length-1&&0<e.y&&(a||g(c,f,e.x,e.y-1,e)&&g(c,f,e.x+1,e.y,e))&&T(n,e,1,-1,s*b(e.x+1,e.y-1)),0<e.x&&e.y<c.length-1&&(a||g(c,f,e.x,e.y+1,e)&&g(c,f,e.x-1,e.y,e))&&T(n,e,-1,1,s*b(e.x-1,e.y+1)));else{var o=[];o.push({x:e.x,y:e.y});for(var r=e.parent;null!=r;)o.push({x:r.x,y:r.y}),r=r.parent;o.reverse(),n.callback(o),delete h[t],d.shift()}}else n.callback(null),delete h[t],d.shift();else d.shift()}};var T=function(t,n,e,o,r){e=n.x+e,o=n.y+o;void 0!==u[o]&&void 0!==u[o][e]||!g(c,f,e,o,n)||(void 0===(o=O(t,e,o,n,r)).list?(o.list=1,t.openList.push(o)):n.costSoFar+r<o.costSoFar&&(o.costSoFar=n.costSoFar+r,o.parent=n,t.openList.updateItem(o)))},g=function(t,n,e,o,r){var i=l[o]&&l[o][e];if(i){var s=x(r.x-e,r.y-o);if(!function(){for(var t=0;t<i.length;t++)if(i[t]===s)return!0;return!1}())return!1}for(var u=0;u<n.length;u++)if(t[o][e]===n[u])return!0;return!1},x=function(t,n){if(0===t&&-1===n)return P.TOP;if(1===t&&-1===n)return P.TOP_RIGHT;if(1===t&&0===n)return P.RIGHT;if(1===t&&1===n)return P.BOTTOM_RIGHT;if(0===t&&1===n)return P.BOTTOM;if(-1===t&&1===n)return P.BOTTOM_LEFT;if(-1===t&&0===n)return P.LEFT;if(-1===t&&-1===n)return P.TOP_LEFT;throw new Error("These differences are not valid: "+t+", "+n)},b=function(t,n){return r[n]&&r[n][t]||o[c[n][t]]},O=function(t,n,e,o,r){if(void 0!==t.nodeHash[e]){if(void 0!==t.nodeHash[e][n])return t.nodeHash[e][n]}else t.nodeHash[e]={};var i=m(n,e,t.endX,t.endY),r=null!==o?o.costSoFar+r:0,i=new _(o,n,e,r,i);return t.nodeHash[e][n]=i},m=function(t,n,e,o){var r,i;return v?(r=Math.abs(t-e))<(i=Math.abs(n-o))?s*r+i:s*i+r:(r=Math.abs(t-e))+(i=Math.abs(n-o))}},P.TOP="TOP",P.TOP_RIGHT="TOP_RIGHT",P.RIGHT="RIGHT",P.BOTTOM_RIGHT="BOTTOM_RIGHT",P.BOTTOM="BOTTOM",P.BOTTOM_LEFT="BOTTOM_LEFT",P.LEFT="LEFT",P.TOP_LEFT="TOP_LEFT"},function(t,n){t.exports=function(){this.pointsToAvoid={},this.startX,this.callback,this.startY,this.endX,this.endY,this.nodeHash={},this.openList}},function(t,n){t.exports=function(t,n,e,o,r){this.parent=t,this.x=n,this.y=e,this.costSoFar=o,this.simpleDistanceToTarget=r,this.bestGuessDistance=function(){return this.costSoFar+this.simpleDistanceToTarget}}},function(t,n,e){t.exports=e(4)},function(u,T,t){var g,x;(function(){var t,p,l,h,d,n,a,e,y,v,o,r,i,c,f;function s(t){this.cmp=null!=t?t:p,this.nodes=[]}l=Math.floor,v=Math.min,p=function(t,n){return t<n?-1:n<t?1:0},y=function(t,n,e,o,r){var i;if(null==e&&(e=0),null==r&&(r=p),e<0)throw new Error("lo must be 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e(this.nodes,t,this.cmp)},s.prototype.pushpop=function(t){return a(this.nodes,t,this.cmp)},s.prototype.heapify=function(){return h(this.nodes,this.cmp)},s.prototype.updateItem=function(t){return i(this.nodes,t,this.cmp)},s.prototype.clear=function(){return this.nodes=[]},s.prototype.empty=function(){return 0===this.nodes.length},s.prototype.size=function(){return this.nodes.length},s.prototype.clone=function(){var t=new s;return t.nodes=this.nodes.slice(0),t},s.prototype.toArray=function(){return this.nodes.slice(0)},s.prototype.insert=s.prototype.push,s.prototype.top=s.prototype.peek,s.prototype.front=s.prototype.peek,s.prototype.has=s.prototype.contains,s.prototype.copy=s.prototype.clone,t=s,g=[],void 0===(x="function"==typeof(x=function(){return t})?x.apply(T,g):x)||(u.exports=x)}).call(this)}]);
\ No newline at end of file
+var EasyStar=function(e){var o={};function r(t){if(o[t])return o[t].exports;var n=o[t]={i:t,l:!1,exports:{}};return e[t].call(n.exports,n,n.exports,r),n.l=!0,n.exports}return r.m=e,r.c=o,r.d=function(t,n,e){r.o(t,n)||Object.defineProperty(t,n,{enumerable:!0,get:e})},r.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},r.t=function(n,t){if(1&t&&(n=r(n)),8&t)return n;if(4&t&&"object"==typeof n&&n&&n.__esModule)return n;var e=Object.create(null);if(r.r(e),Object.defineProperty(e,"default",{enumerable:!0,value:n}),2&t&&"string"!=typeof n)for(var o in n)r.d(e,o,function(t){return n[t]}.bind(null,o));return e},r.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return r.d(n,"a",n),n},r.o=function(t,n){return Object.prototype.hasOwnProperty.call(t,n)},r.p="/bin/",r(r.s=0)}([function(t,n,e){var P={},M=e(1),_=e(2),A=e(3),E=(t.exports=P,1);P.js=function(){var f,i,c,s=1.4,p=!1,l={},o={},r={},a={},u=!0,h={},d=[],y=Number.MAX_VALUE,v=!1,T=(this.setAcceptableTiles=function(t){t instanceof Array?c=t:!isNaN(parseFloat(t))&&isFinite(t)&&(c=[t])},this.enableSync=function(){p=!0},this.disableSync=function(){p=!1},this.enableDiagonals=function(){v=!0},this.disableDiagonals=function(){v=!1},this.setGrid=function(t){f=t;for(var n=0;n<f.length;n++)for(var e=0;e<f[0].length;e++)o[f[n][e]]||(o[f[n][e]]=1)},this.setTileCost=function(t,n){o[t]=n},this.setAdditionalPointCost=function(t,n,e){void 0===r[n]&&(r[n]={}),r[n][t]=e},this.removeAdditionalPointCost=function(t,n){void 0!==r[n]&&delete r[n][t]},this.removeAllAdditionalPointCosts=function(){r={}},this.setDirectionalCondition=function(t,n,e){void 0===a[n]&&(a[n]={}),a[n][t]=e},this.removeAllDirectionalConditions=function(){a={}},this.setIterationsPerCalculation=function(t){y=t},this.avoidAdditionalPoint=function(t,n){void 0===l[n]&&(l[n]={}),l[n][t]=1},this.stopAvoidingAdditionalPoint=function(t,n){void 0!==l[n]&&delete l[n][t]},this.enableCornerCutting=function(){u=!0},this.disableCornerCutting=function(){u=!1},this.stopAvoidingAllAdditionalPoints=function(){l={}},this.findPath=function(t,n,e,o,r){function i(t){p?r(t):setTimeout(function(){r(t)})}if(void 0===c)throw new Error("You can't set a path without first calling setAcceptableTiles() on EasyStar.");if(void 0===f)throw new Error("You can't set a path without first calling setGrid() on EasyStar.");if(t<0||n<0||e<0||o<0||t>f[0].length-1||n>f.length-1||e>f[0].length-1||o>f.length-1)throw new Error("Your start or end point is outside the scope of your grid.");if(t===e&&n===o)i([]);else{for(var s,u=f[o][e],l=!1,a=0;a<c.length;a++)if(u===c[a]){l=!0;break}if(!1!==l)return(s=new M).openList=new A(function(t,n){return t.bestGuessDistance()-n.bestGuessDistance()}),s.isDoneCalculating=!1,s.nodeHash={},s.startX=t,s.startY=n,s.endX=e,s.endY=o,s.callback=i,s.openList.push(O(s,s.startX,s.startY,null,1)),t=E++,h[t]=s,d.push(t),t;i(null)}},this.cancelPath=function(t){return t in h&&(delete h[t],!0)},this.calculate=function(){if(0!==d.length&&void 0!==f&&void 0!==c)for(i=0;i<y;i++){if(0===d.length)return;p&&(i=0);var t=d[0],n=h[t];if(void 0===n)d.shift();else if(0===n.openList.size())n.callback(null),delete h[t],d.shift();else{var e=n.openList.pop();if(n.endX===e.x&&n.endY===e.y){for(var o=[],r=(o.push({x:e.x,y:e.y}),e.parent);null!=r;)o.push({x:r.x,y:r.y}),r=r.parent;o.reverse(),n.callback(o),delete h[t],d.shift()}else(e.list=0)<e.y&&T(n,e,0,-1,+b(e.x,e.y-1)),e.x<f[0].length-1&&T(n,e,1,0,+b(e.x+1,e.y)),e.y<f.length-1&&T(n,e,0,1,+b(e.x,e.y+1)),0<e.x&&T(n,e,-1,0,+b(e.x-1,e.y)),v&&(0<e.x&&0<e.y&&(u||g(f,c,e.x,e.y-1,e)&&g(f,c,e.x-1,e.y,e))&&T(n,e,-1,-1,s*b(e.x-1,e.y-1)),e.x<f[0].length-1&&e.y<f.length-1&&(u||g(f,c,e.x,e.y+1,e)&&g(f,c,e.x+1,e.y,e))&&T(n,e,1,1,s*b(e.x+1,e.y+1)),e.x<f[0].length-1&&0<e.y&&(u||g(f,c,e.x,e.y-1,e)&&g(f,c,e.x+1,e.y,e))&&T(n,e,1,-1,s*b(e.x+1,e.y-1)),0<e.x&&e.y<f.length-1&&(u||g(f,c,e.x,e.y+1,e)&&g(f,c,e.x-1,e.y,e))&&T(n,e,-1,1,s*b(e.x-1,e.y+1)))}}},function(t,n,e,o,r){var e=n.x+e,o=n.y+o;void 0!==l[o]&&void 0!==l[o][e]||!g(f,c,e,o,n)||(void 0===(e=O(t,e,o,n,r)).list?(e.list=1,t.openList.push(e)):n.costSoFar+r<e.costSoFar&&(e.costSoFar=n.costSoFar+r,e.parent=n,t.openList.updateItem(e)))}),g=function(t,n,e,o,r){if(l[o]&&l[o][e])return!1;var i=a[o]&&a[o][e];if(i){var s=x(r.x-e,r.y-o);if(!function(){for(var t=0;t<i.length;t++)if(i[t]===s)return!0;return!1}())return!1}for(var u=0;u<n.length;u++)if(t[o][e]===n[u])return!0;return!1},x=function(t,n){if(0===t&&-1===n)return P.TOP;if(1===t&&-1===n)return P.TOP_RIGHT;if(1===t&&0===n)return P.RIGHT;if(1===t&&1===n)return P.BOTTOM_RIGHT;if(0===t&&1===n)return P.BOTTOM;if(-1===t&&1===n)return P.BOTTOM_LEFT;if(-1===t&&0===n)return P.LEFT;if(-1===t&&-1===n)return P.TOP_LEFT;throw new Error("These differences are not valid: "+t+", "+n)},b=function(t,n){return r[n]&&r[n][t]||o[f[n][t]]},O=function(t,n,e,o,r){if(void 0!==t.nodeHash[e]){if(void 0!==t.nodeHash[e][n])return t.nodeHash[e][n]}else t.nodeHash[e]={};var i=m(n,e,t.endX,t.endY),r=null!==o?o.costSoFar+r:0,o=new _(o,n,e,r,i);return t.nodeHash[e][n]=o},m=function(t,n,e,o){var r,i;return v?(r=Math.abs(t-e))<(i=Math.abs(n-o))?s*r+i:s*i+r:(r=Math.abs(t-e))+(i=Math.abs(n-o))}},P.TOP="TOP",P.TOP_RIGHT="TOP_RIGHT",P.RIGHT="RIGHT",P.BOTTOM_RIGHT="BOTTOM_RIGHT",P.BOTTOM="BOTTOM",P.BOTTOM_LEFT="BOTTOM_LEFT",P.LEFT="LEFT",P.TOP_LEFT="TOP_LEFT"},function(t,n){t.exports=function(){this.pointsToAvoid={},this.startX,this.callback,this.startY,this.endX,this.endY,this.nodeHash={},this.openList}},function(t,n){t.exports=function(t,n,e,o,r){this.parent=t,this.x=n,this.y=e,this.costSoFar=o,this.simpleDistanceToTarget=r,this.bestGuessDistance=function(){return this.costSoFar+this.simpleDistanceToTarget}}},function(t,n,e){t.exports=e(4)},function(u,T,t){var g,x;!function(){var t,p,l,h,d,n,a,e,y,v,o,r,i,f,c;function s(t){this.cmp=null!=t?t:p,this.nodes=[]}l=Math.floor,v=Math.min,p=function(t,n){return t<n?-1:n<t?1:0},y=function(t,n,e,o,r){var i;if(null==r&&(r=p),(e=null==e?0:e)<0)throw new Error("lo must be non-negative");for(null==o&&(o=t.length);e<o;)r(n,t[i=l((e+o)/2)])<0?o=i:e=i+1;return[].splice.apply(t,[e,e-e].concat(n)),n},d=function(t,n){var e,o;return null==n&&(n=p),e=t.pop(),t.length?(o=t[0],t[0]=e,c(t,0,n)):o=e,o},e=function(t,n,e){var o;return null==e&&(e=p),o=t[0],t[0]=n,c(t,0,e),o},a=function(t,n,e){var o;return null==e&&(e=p),t.length&&e(t[0],n)<0&&(n=(o=[t[0],n])[0],t[0]=o[1],c(t,0,e)),n},h=function(e,t){var n,o,r,i,s,u;for(null==t&&(t=p),s=[],o=0,r=(i=function(){u=[];for(var t=0,n=l(e.length/2);0<=n?t<n:n<t;0<=n?t++:t--)u.push(t);return u}.apply(this).reverse()).length;o<r;o++)n=i[o],s.push(c(e,n,t));return s},i=function(t,n,e){if(null==e&&(e=p),-1!==(n=t.indexOf(n)))return f(t,0,n,e),c(t,n,e)},o=function(t,n,e){var o,r,i,s,u;if(null==e&&(e=p),!(r=t.slice(0,n)).length)return r;for(h(r,e),i=0,s=(u=t.slice(n)).length;i<s;i++)o=u[i],a(r,o,e);return r.sort(e).reverse()},r=function(t,n,e){var o,r,i,s,u,l,a,f,c;if(null==e&&(e=p),10*n<=t.length){if(!(i=t.slice(0,n).sort(e)).length)return i;for(r=i[i.length-1],s=0,l=(a=t.slice(n)).length;s<l;s++)e(o=a[s],r)<0&&(y(i,o,0,null,e),i.pop(),r=i[i.length-1]);return i}for(h(t,e),c=[],u=0,f=v(n,t.length);0<=f?u<f:f<u;0<=f?++u:--u)c.push(d(t,e));return c},f=function(t,n,e,o){var r,i,s;for(null==o&&(o=p),r=t[e];n<e&&o(r,i=t[s=e-1>>1])<0;)t[e]=i,e=s;return t[e]=r},c=function(t,n,e){var o,r,i,s,u;for(null==e&&(e=p),r=t.length,i=t[u=n],o=2*n+1;o<r;)(s=o+1)<r&&!(e(t[o],t[s])<0)&&(o=s),t[n]=t[o],o=2*(n=o)+1;return t[n]=i,f(t,u,n,e)},s.push=n=function(t,n,e){return null==e&&(e=p),t.push(n),f(t,0,t.length-1,e)},s.pop=d,s.replace=e,s.pushpop=a,s.heapify=h,s.updateItem=i,s.nlargest=o,s.nsmallest=r,s.prototype.push=function(t){return n(this.nodes,t,this.cmp)},s.prototype.pop=function(){return d(this.nodes,this.cmp)},s.prototype.peek=function(){return this.nodes[0]},s.prototype.contains=function(t){return-1!==this.nodes.indexOf(t)},s.prototype.replace=function(t){return e(this.nodes,t,this.cmp)},s.prototype.pushpop=function(t){return a(this.nodes,t,this.cmp)},s.prototype.heapify=function(){return h(this.nodes,this.cmp)},s.prototype.updateItem=function(t){return i(this.nodes,t,this.cmp)},s.prototype.clear=function(){return this.nodes=[]},s.prototype.empty=function(){return 0===this.nodes.length},s.prototype.size=function(){return this.nodes.length},s.prototype.clone=function(){var t=new s;return t.nodes=this.nodes.slice(0),t},s.prototype.toArray=function(){return this.nodes.slice(0)},s.prototype.insert=s.prototype.push,s.prototype.top=s.prototype.peek,s.prototype.front=s.prototype.peek,s.prototype.has=s.prototype.contains,s.prototype.copy=s.prototype.clone,t=s,x=[],void 0!==(x="function"==typeof(g=function(){return t})?g.apply(T,x):g)&&(u.exports=x)}.call(this)}]);
\ No newline at end of file
diff --git a/src/easystar.js b/src/easystar.js
index 8323066..8a8b015 100755
--- a/src/easystar.js
+++ b/src/easystar.js
@@ -467,6 +467,9 @@ EasyStar.js = function() {
 
     // Helpers
     var isTileWalkable = function(collisionGrid, acceptableTiles, x, y, sourceNode) {
+        if (pointsToAvoid[y] && pointsToAvoid[y][x]) {
+            return false;
+        }
         var directionalCondition = directionalConditions[y] && directionalConditions[y][x];
         if (directionalCondition) {
             var direction = calculateDirection(sourceNode.x - x, sourceNode.y - y)
diff --git a/test/easystartest.js b/test/easystartest.js
index 9209b34..ef12e43 100644
--- a/test/easystartest.js
+++ b/test/easystartest.js
@@ -348,4 +348,28 @@ describe("EasyStar.js", function() {
 
       easyStar.calculate();
   })
+
+  it("It should not cut corners of `pointsToAvoid`.", function(done) {
+    var easyStar = new EasyStar.js();
+    easyStar.enableDiagonals();
+    var map = [[1,1],
+               [1,1]];
+
+    easyStar.setGrid(map);
+
+    easyStar.disableCornerCutting();
+
+    easyStar.setAcceptableTiles([1]);
+    easyStar.avoidAdditionalPoint(1, 0);
+    easyStar.avoidAdditionalPoint(0, 1);
+
+    easyStar.findPath(0,0,1,1,onPathFound);
+
+    easyStar.calculate();
+
+    function onPathFound(path) {
+        expect(path).toBeNull();
+        done();
+    }
+  });
 });