diff --git a/package.json b/package.json
index 032acdc..cd583e7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pathfinding.ts",
-  "version": "1.3.2",
+  "version": "1.4.0",
   "description": "",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/src/finders/jumpPoint_2.finder.ts b/src/finders/jumpPoint_2.finder.ts
index ec77574..29bea8e 100644
--- a/src/finders/jumpPoint_2.finder.ts
+++ b/src/finders/jumpPoint_2.finder.ts
@@ -7,7 +7,6 @@ import {DirectionEnum} from "../objects/nodes/direction.enum";
 export const findPath = (
     startPoint: Point,
     endPoint: Point,
-    maxJumpCost: number,
     grid: Grid
 ): PointInterface[] => {
 
diff --git a/src/objects/grid.ts b/src/objects/grid.ts
index 681f0ce..79bd2fe 100644
--- a/src/objects/grid.ts
+++ b/src/objects/grid.ts
@@ -36,7 +36,7 @@ export class Grid {
             case "directionNode":
                 this.nodes = this._matrix.map((arrY, y) =>
                     arrY.map((cost, x) => {
-                        if (0 > cost) return null
+                        if (cost === null) return null
 
                         const directionNode = new DirectionNode(new Point(x, y));
 
@@ -45,7 +45,7 @@ export class Grid {
                             const nodePoint = directionNode.point.copy(point.x, point.y);
                             const neighborCost = this.getMatrixCost(nodePoint);
 
-                            return (neighborCost !== null && neighborCost > 0 && Math.abs(neighborCost - cost) <= maxJumpCost)
+                            return (neighborCost !== null && Math.abs(neighborCost - cost) <= maxJumpCost)
                                 ? nodePoint : null;
                         }
 
@@ -117,7 +117,6 @@ export class Grid {
                 return findPathJPS_2(
                     new Point(startPoint.x, startPoint.y),
                     new Point(endPoint.x, endPoint.y),
-                    maxJumpCost,
                     gridClone
                 );
         }
diff --git a/src/sandbox.ts b/src/sandbox.ts
index 702e7f8..e086ba5 100644
--- a/src/sandbox.ts
+++ b/src/sandbox.ts
@@ -3,8 +3,17 @@ import {Grid} from "./objects/grid";
 import {smallGrid} from "../__tests__/test-data/small-grid";
 import {FinderEnum} from "./finders/finder.enum";
 
-const grid = new Grid(smallGrid, "directionNode");
+const a = [
+    [null, null, null, null, null],
+    [null, null, null, null, null],
+    [null, null, 0, 0, null],
+    [4, 2, 0, -2, -4],
+    [0, null, null, null, null]
+] as number[][];
+
+
+const grid = new Grid(a);
 
 console.log(
-    grid.findPath({ x: 4, y: 2 }, { x: 4, y: 1 }, 5, FinderEnum.JUMP_POINT_2)
-);
+    grid.findPath({ x: 0, y: 3 }, { x: 4, y: 3 }, 5)
+);
\ No newline at end of file