Function patch_path 

pub fn patch_path(
    patch_nodes: RangeInclusive<usize>,
    executing_path: &mut ExecutingPath,
    pathfinder: &mut Pathfinder,
    inventory: &Inventory,
    entity: Entity,
    world_lock: Arc<RwLock<World>>,
    custom_state: CustomPathfinderState,
    opts: PathfinderOpts,
)

Update the given ExecutingPath to recalculate the path of the nodes in the given index range.

You should avoid making the range too large, since the timeout for the A* calculation is very low. About 20 nodes is a good amount.