void Update()
{
if (calculatePaths) {
CalcOnePathPerFrame ();
}
currentTargetNode = grid.NodeFromWorldPoint (target.position);
if (previousTargetNode != null) {
//if current target node != previous target node, then calculate all paths
if (!currentTargetNode.IsPositionEqualTo (previousTargetNode) && currentTargetNode.walkable) {
calculatePaths = true;
//CalculateAllPaths ();
}
// if (!currentTargetNode.IsNeighbor (previousTargetNode))
// previousTargetNode = currentTargetNode;
}
// else {
previousTargetNode = currentTargetNode;
// }
}
