AStar类的getPath方法被用于获取从起点到终点的最短路径。
AStar.getPath(startNode, endNode, diagonalsAllowed)
startNode：必需，起点节点对象。endNode：必需，终点节点对象。diagonalsAllowed：可选，布尔值，表示是否允许斜向移动。默认为false，即不允许。var startNode = new Node(0, 0);
var endNode = new Node(5, 5);
var astar = new AStar(map);
var path = astar.getPath(startNode, endNode);
if (path === null) {
console.log("No path found!");
} else {
console.log(path);
}