gistfile1.js

  // Node function, returns a new object with Node properties
	// Used in the calculatePath function to store route costs, etc.
	function Node(Parent, Point)
	{
		var newNode = {
			// pointer to another Node object
			Parent:Parent,
			// array index of this Node in the world linear array
			value:Point.x + (Point.y * worldWidth),
			// the location coordinates of this Node
			x:Point.x,
			y:Point.y,
			// the distanceFunction cost to get
			// TO this Node from the START
			f:0,
			// the distanceFunction cost to get
			// from this Node to the GOAL
			g:0
		};

		return newNode;
	}